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libcurl bindings
================
Creative people have written bindings or interfaces for various environments
and programming languages. Using one of these allows you to take advantage of
curl powers from within your favourite language or system.
This is a list of all known interfaces as of this writing.
The bindings listed below are not part of the curl/libcurl distribution
archives, but must be downloaded and installed separately.
[Ada95](http://www.almroth.com/adacurl/index.html) Written by Andreas Almroth
[Basic](http://scriptbasic.com/) ScriptBasic bindings written by Peter Verhas
[C++](http://curlpp.org/) Written by Jean-Philippe Barrette-LaPierre
[Ch](http://chcurl.sourceforge.net/) Written by Stephen Nestinger and Jonathan Rogado
Cocoa: [BBHTTP](https://github.com/brunodecarvalho/BBHTTP) written by Bruno de Carvalho
[curlhandle](http://curlhandle.sourceforge.net/) Written by Dan Wood
[D](http://dlang.org/library/std/net/curl.html) Written by Kenneth Bogert
[Dylan](http://dylanlibs.sourceforge.net/) Written by Chris Double
[Eiffel](https://room.eiffel.com/library/curl) Written by Eiffel Software
[Euphoria](http://rays-web.com/eulibcurl.htm) Written by Ray Smith
[Falcon](http://www.falconpl.org/index.ftd?page_id=prjs&prj_id=curl)
[Ferite](http://www.ferite.org/) Written by Paul Querna
[Gambas](http://gambas.sourceforge.net/)
[glib/GTK+](http://atterer.net/glibcurl/) Written by Richard Atterer
[Guile](http://www.lonelycactus.com/guile-curl.html) Written by Michael L. Gran
[Harbour](https://github.com/vszakats/harbour-core/tree/master/contrib/hbcurl) Written by Viktor Szakáts
[Haskell](http://hackage.haskell.org/cgi-bin/hackage-scripts/package/curl) Written by Galois, Inc
[Java](https://github.com/pjlegato/curl-java)
[Julia](https://github.com/forio/Curl.jl) Written by Paul Howe
[Lisp](http://common-lisp.net/project/cl-curl/) Written by Liam Healy
Lua: [luacurl](http://luacurl.luaforge.net/) by Alexander Marinov, [Lua-cURL](http://luaforge.net/projects/lua-curl/) by Jürgen Hötzel
[Mono](http://forge.novell.com/modules/xfmod/project/?libcurl-mono) Written by Jeffrey Phillips
[.NET](https://sourceforge.net/projects/libcurl-net/) libcurl-net by Jeffrey Phillips
[node.js](https://github.com/JCMais/node-libcurl) node-libcurl by Jonathan Cardoso Machado
[Object-Pascal](http://www.tekool.com/opcurl) Free Pascal, Delphi and Kylix binding written by Christophe Espern.
[O'Caml](https://sourceforge.net/projects/ocurl/) Written by Lars Nilsson
[Pascal](http://houston.quik.com/jkp/curlpas/) Free Pascal, Delphi and Kylix binding written by Jeffrey Pohlmeyer.
[Perl](https://github.com/szbalint/WWW--Curl) Maintained by Cris Bailiff and Bálint Szilakszi
[PHP](https://php.net/curl) Originally written by Sterling Hughes
[PostgreSQL](http://gborg.postgresql.org/project/pgcurl/projdisplay.php) Written by Gian Paolo Ciceri
[Python](http://pycurl.sourceforge.net/) PycURL by Kjetil Jacobsen
[R](http://cran.r-project.org/package=curl)
[Rexx](http://rexxcurl.sourceforge.net/) Written Mark Hessling
RPG, support for ILE/RPG on OS/400 is included in source distribution
Ruby: [curb](http://curb.rubyforge.org/) written by Ross Bamford, [ruby-curl-multi](http://curl-multi.rubyforge.org/) written by Kristjan Petursson and Keith Rarick
[Rust](https://github.com/carllerche/curl-rust) curl-rust - by Carl Lerche
[Scheme](http://www.metapaper.net/lisovsky/web/curl/) Bigloo binding by Kirill Lisovsky
[S-Lang](http://www.jedsoft.org/slang/modules/curl.html) by John E Davis
[Smalltalk](http://www.squeaksource.com/CurlPlugin/) Written by Danil Osipchuk
[SP-Forth](http://www.forth.org.ru/~ac/lib/lin/curl/) Written by ygrek
[SPL](http://www.clifford.at/spl/) Written by Clifford Wolf
[Tcl](http://mirror.yellow5.com/tclcurl/) Tclcurl by Andrés García
[Visual Basic](https://sourceforge.net/projects/libcurl-vb/) libcurl-vb by Jeffrey Phillips
[Visual Foxpro](http://www.ctl32.com.ar/libcurl.asp) by Carlos Alloatti
[Q](http://q-lang.sourceforge.net/) The libcurl module is part of the default install
[wxWidgets](http://wxcode.sourceforge.net/components/wxcurl/) Written by Casey O'Donnell
[XBLite](http://perso.wanadoo.fr/xblite/libraries.html) Written by David Szafranski
[Xojo](https://github.com/charonn0/RB-libcURL) Written by Andrew Lambert

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_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
BUGS
1. Bugs
1.1 There are still bugs
1.2 Where to report
1.3 What to report
1.4 libcurl problems
1.5 Who will fix the problems
1.6 How to get a stack trace
1.7 Bugs in libcurl bindings
2. Bug fixing procedure
2.1 What happens on first filing
2.2 First response
2.3 Not reproducible
2.4 Unresponsive
2.5 Lack of time/interest
2.6 KNOWN_BUGS
2.7 TODO
2.8 Closing off stalled bugs
==============================================================================
1.1 There are still bugs
Curl and libcurl have grown substantially since the beginning. At the time
of writing (January 2013), there are about 83,000 lines of source code, and
by the time you read this it has probably grown even more.
Of course there are lots of bugs left. And lots of misfeatures.
To help us make curl the stable and solid product we want it to be, we need
bug reports and bug fixes.
1.2 Where to report
If you can't fix a bug yourself and submit a fix for it, try to report an as
detailed report as possible to a curl mailing list to allow one of us to
have a go at a solution. You can optionally also post your bug/problem at
curl's bug tracking system over at
https://github.com/curl/curl/issues
Please read the rest of this document below first before doing that!
If you feel you need to ask around first, find a suitable mailing list and
post there. The lists are available on https://curl.haxx.se/mail/
1.3 What to report
When reporting a bug, you should include all information that will help us
understand what's wrong, what you expected to happen and how to repeat the
bad behavior. You therefore need to tell us:
- your operating system's name and version number
- what version of curl you're using (curl -V is fine)
- versions of the used libraries that libcurl is built to use
- what URL you were working with (if possible), at least which protocol
and anything and everything else you think matters. Tell us what you
expected to happen, tell use what did happen, tell us how you could make it
work another way. Dig around, try out, test. Then include all the tiny bits
and pieces in your report. You will benefit from this yourself, as it will
enable us to help you quicker and more accurately.
Since curl deals with networks, it often helps us if you include a protocol
debug dump with your bug report. The output you get by using the -v or
--trace options.
If curl crashed, causing a core dump (in unix), there is hardly any use to
send that huge file to anyone of us. Unless we have an exact same system
setup as you, we can't do much with it. Instead we ask you to get a stack
trace and send that (much smaller) output to us instead!
The address and how to subscribe to the mailing lists are detailed in the
MANUAL file.
1.4 libcurl problems
When you've written your own application with libcurl to perform transfers,
it is even more important to be specific and detailed when reporting bugs.
Tell us the libcurl version and your operating system. Tell us the name and
version of all relevant sub-components like for example the SSL library
you're using and what name resolving your libcurl uses. If you use SFTP or
SCP, the libssh2 version is relevant etc.
Showing us a real source code example repeating your problem is the best way
to get our attention and it will greatly increase our chances to understand
your problem and to work on a fix (if we agree it truly is a problem).
Lots of problems that appear to be libcurl problems are actually just abuses
of the libcurl API or other malfunctions in your applications. It is advised
that you run your problematic program using a memory debug tool like
valgrind or similar before you post memory-related or "crashing" problems to
us.
1.5 Who will fix the problems
If the problems or bugs you describe are considered to be bugs, we want to
have the problems fixed.
There are no developers in the curl project that are paid to work on bugs.
All developers that take on reported bugs do this on a voluntary basis. We
do it out of an ambition to keep curl and libcurl excellent products and out
of pride.
But please do not assume that you can just lump over something to us and it
will then magically be fixed after some given time. Most often we need
feedback and help to understand what you've experienced and how to repeat a
problem. Then we may only be able to assist YOU to debug the problem and to
track down the proper fix.
We get reports from many people every month and each report can take a
considerable amount of time to really go to the bottom with.
1.6 How to get a stack trace
First, you must make sure that you compile all sources with -g and that you
don't 'strip' the final executable. Try to avoid optimizing the code as
well, remove -O, -O2 etc from the compiler options.
Run the program until it cores.
Run your debugger on the core file, like '<debugger> curl core'. <debugger>
should be replaced with the name of your debugger, in most cases that will
be 'gdb', but 'dbx' and others also occur.
When the debugger has finished loading the core file and presents you a
prompt, enter 'where' (without the quotes) and press return.
The list that is presented is the stack trace. If everything worked, it is
supposed to contain the chain of functions that were called when curl
crashed. Include the stack trace with your detailed bug report. It'll help a
lot.
1.7 Bugs in libcurl bindings
There will of course pop up bugs in libcurl bindings. You should then
primarily approach the team that works on that particular binding and see
what you can do to help them fix the problem.
If you suspect that the problem exists in the underlying libcurl, then
please convert your program over to plain C and follow the steps outlined
above.
2. Bug fixing procedure
2.1 What happens on first filing
When a new issue is posted in the issue tracker or on the mailing list, the
team of developers first need to see the report. Maybe they took the day
off, maybe they're off in the woods hunting. Have patience. Allow at least a
few days before expecting someone to have responded.
In the issue tracker you can expect that some labels will be set on the
issue to help categorize it.
2.2 First response
If your issue/bug report wasn't perfect at once (and few are), chances are
that someone will ask follow-up questions. Which version did you use? Which
options did you use? How often does the problem occur? How can we reproduce
this problem? Which protocols does it involve? Or perhaps much more specific
and deep diving questions. It all depends on your specific issue.
You should then respond to these follow-up questions and provide more info
about the problem, so that we can help you figure it out. Or maybe you can
help us figure it out. An active back-and-forth communication is important
and the key for finding a cure and landing a fix.
2.3 Not reproducible
For problems that we can't reproduce and can't understand even after having
gotten all the info we need and having studied the source code over again,
are really hard to solve so then we may require further work from you who
actually see or experience the problem.
2.4 Unresponsive
If the problem haven't been understood or reproduced, and there's nobody
responding to follow-up questions or questions asking for clarifications or
for discussing possible ways to move forward with the task, we take that as
a strong suggestion that the bug is not important.
Unimportant issues will be closed as inactive sooner or later as they can't
be fixed. The inactivity period (waiting for responses) should not be
shorter than two weeks but may extend months.
2.5 Lack of time/interest
Bugs that are filed and are understood can unfortunately end up in the
"nobody cares enough about it to work on it" category. Such bugs are
perfectly valid problems that *should* get fixed but apparently aren't. We
try to mark such bugs as "KNOWN_BUGS material" after a time of inactivity
and if no activity is noticed after yet some time those bugs are added to
KNOWN_BUGS and are closed in the issue tracker.
2.6 KNOWN_BUGS
This is a list of known bugs. Bugs we know exist and that have been pointed
out but that haven't yet been fixed. The reasons for why they haven't been
fixed can involve anything really, but the primary reason is that nobody has
considered these problems to be important enough to spend the necesary time
and effort to have them fixed.
The KNOWN_BUGS are always up for grabs and we will always love the ones who
bring one of them back to live and offers solutions to them.
The KNOWN_BUGS document has a sibling document known as TODO.
2.7 TODO
Issues that are filed or reported that aren't really bugs but more missing
features or ideas for future improvements and so on are marked as
'enhancement' or 'feature-request' and will be added to the TODO document
instead and the issue is closed. We don't keep TODO items in the issue
tracker.
The TODO document is full of ideas and suggestions of what we can add or fix
one day. You're always encouraged and free to grab one of those items and
take up a discussion with the curl development team on how that could be
implemented or provided in the project so that you can work on ticking it
odd that document.
If the issue is rather a bug and not a missing feature or functionality, it
is listed in KNOWN_BUGS instead.
2.8 Closing off stalled bugs
The issue and pull request trackers on https://github.com/curl/curl will
only hold "active" entries (using a non-precise defintion of what active
actually is, but they're at least not completely dead). Those that are
abandonded or in other ways dormant will be closed and sometimes added to
TODO and KNOWN_BUGS instead.
This way, we only have "active" issues open on github. Irrelevant issues and
pull requests will not distract developes or casual visitors.

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# checksrc
This is the tool we use within the curl project to scan C source code and
check that it adheres to our [Source Code Style guide](CODE_STYLE.md).
## Usage
checksrc.pl [options] [file1] [file2] ...
## Command line options
`-W[file]` whitelists that file and excludes it from being checked. Helpful
when, for example, one of the files is generated.
`-D[dir]` directory name to prepend to file names when accessing them.
`-h` shows the help output, that also lists all recognized warnings
## What does checksrc warn for?
checksrc does not check and verify the code against the entire style guide,
but the script is instead an effort to detect the most common mistakes and
syntax mistakes that contributors make before they get accustomed to our code
style. Heck, many of us regulars do the mistakes too and this script helps us
keep the code in shape.
checksrc.pl -h
Lists how to use the script and it lists all existing warnings it has and
problems it detects. At the time of this writing, the existing checksrc
warnings are:
- `BADCOMMAND`: There's a bad !checksrc! instruction in the code. See the
**Ignore certain warnings** section below for details.
- `BANNEDFUNC`: A banned function was used. The functions sprintf, vsprintf,
strcat, strncat, gets are **never** allowed in curl source code.
- `BRACEELSE`: '} else' on the same line. The else is supposed to be on the
following line.
- `BRACEPOS`: wrong position for an open brace (`{`).
- `COMMANOSPACE`: a comma without following space
- `COPYRIGHT`: the file is missing a copyright statement!
- `CPPCOMMENTS`: `//` comment detected, that's not C89 compliant
- `FOPENMODE`: `fopen()` needs a macro for the mode string, use it
- `INDENTATION`: detected a wrong start column for code. Note that this warning
only checks some specific places and will certainly miss many bad
indentations.
- `LONGLINE`: A line is longer than 79 columns.
- `PARENBRACE`: `){` was used without sufficient space in between.
- `RETURNNOSPACE`: `return` was used without space between the keyword and the
following value.
- `SPACEAFTERPAREN`: there was a space after open parenthesis, `( text`.
- `SPACEBEFORECLOSE`: there was a space before a close parenthesis, `text )`.
- `SPACEBEFORECOMMA`: there was a space before a comma, `one , two`.
- `SPACEBEFOREPAREN`: there was a space before an open parenthesis, `if (`,
where one was not expected
- `SPACESEMILCOLON`: there was a space before semicolon, ` ;`.
- `TABS`: TAB characters are not allowed!
- `TRAILINGSPACE`: Trailing white space on the line
- `UNUSEDIGNORE`: a checksrc inlined warning ignore was asked for but not used,
that's an ignore that should be removed or changed to get used.
## Ignore certain warnings
Due to the nature of the source code and the flaws of the checksrc tool, there
is sometimes a need to ignore specific warnings. checksrc allows a few
different ways to do this.
### Inline ignore
You can control what to ignore within a specific source file by providing
instructions to checksrc in the source code itself. You need a magic marker
that is `!checksrc!` followed by the instruction. The instruction can ask to
ignore a specific warning N number of times or you ignore all of them until
you mark the end of the ignored section.
Inline ignores are only done for that single specific source code file.
Example
/* !checksrc! disable LONGLINE all */
This will ignore the warning for overly long lines until it is re-enabled with:
/* !checksrc! enable LONGLINE */
If the enabling isn't performed before the end of the file, it will be enabled
automatically for the next file.
You can also opt to ignore just N violations so that if you have a single long
line you just can't shorten and is agreed to be fine anyway:
/* !checksrc! disable LONGLINE 1 */
... and the warning for long lines will be enabled again automatically after
it has ignored that single warning. The number `1` can of course be changed to
any other integer number. It can be used to make sure only the exact intended
instances are ignored and nothing extra.
### Directory wide ignore patterns
This is a method we've transitioned away from. Use inline ignores as far as
possible.
Make a `checksrc.whitelist` file in the directory of the source code with the
false positive, and include the full offending line into this file.

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Contributor Code of Conduct
===========================
As contributors and maintainers of this project, we pledge to respect all
people who contribute through reporting issues, posting feature requests,
updating documentation, submitting pull requests or patches, and other
activities.
We are committed to making participation in this project a harassment-free
experience for everyone, regardless of level of experience, gender, gender
identity and expression, sexual orientation, disability, personal appearance,
body size, race, ethnicity, age, or religion.
Examples of unacceptable behavior by participants include the use of sexual
language or imagery, derogatory comments or personal attacks, trolling, public
or private harassment, insults, or other unprofessional conduct.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct. Project maintainers who do not
follow the Code of Conduct may be removed from the project team.
This code of conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community.
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by opening an issue or contacting one or more of the project
maintainers.
This Code of Conduct is adapted from the [Contributor
Covenant](http://contributor-covenant.org), version 1.1.0, available at
[http://contributor-covenant.org/version/1/1/0/](http://contributor-covenant.org/version/1/1/0/)

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# curl C code style
Source code that has a common style is easier to read than code that uses
different styles in different places. It helps making the code feel like one
single code base. Easy-to-read is a very important property of code and helps
making it easier to review when new things are added and it helps debugging
code when developers are trying to figure out why things go wrong. A unified
style is more important than individual contributors having their own personal
tastes satisfied.
Our C code has a few style rules. Most of them are verified and upheld by the
`lib/checksrc.pl` script. Invoked with `make checksrc` or even by default by
the build system when built after `./configure --enable-debug` has been used.
It is normally not a problem for anyone to follow the guidelines, as you just
need to copy the style already used in the source code and there are no
particularly unusual rules in our set of rules.
We also work hard on writing code that are warning-free on all the major
platforms and in general on as many platforms as possible. Code that obviously
will cause warnings will not be accepted as-is.
## Naming
Try using a non-confusing naming scheme for your new functions and variable
names. It doesn't necessarily have to mean that you should use the same as in
other places of the code, just that the names should be logical,
understandable and be named according to what they're used for. File-local
functions should be made static. We like lower case names.
See the [INTERNALS](INTERNALS.md) document on how we name non-exported
library-global symbols.
## Indenting
We use only spaces for indentation, never TABs. We use two spaces for each new
open brace.
if(something_is_true) {
while(second_statement == fine) {
moo();
}
}
## Comments
Since we write C89 code, `//` comments are not allowed. They weren't
introduced in the C standard until C99. We use only `/*` and `*/` comments:
/* this is a comment */
## Long lines
Source code in curl may never be wider than 79 columns and there are two
reasons for maintaining this even in the modern era of very large and high
resolution screens:
1. Narrower columns are easier to read than very wide ones. There's a reason
newspapers have used columns for decades or centuries.
2. Narrower columns allow developers to easier show multiple pieces of code
next to each other in different windows. I often have two or three source
code windows next to each other on the same screen - as well as multiple
terminal and debugging windows.
## Braces
In if/while/do/for expressions, we write the open brace on the same line as
the keyword and we then set the closing brace on the same indentation level as
the initial keyword. Like this:
if(age < 40) {
/* clearly a youngster */
}
You may omit the braces if they would contain only a one-line statement:
if(!x)
continue;
For functions the opening brace should be on a separate line:
int main(int argc, char **argv)
{
return 1;
}
## 'else' on the following line
When adding an `else` clause to a conditional expression using braces, we add
it on a new line after the closing brace. Like this:
if(age < 40) {
/* clearly a youngster */
}
else {
/* probably grumpy */
}
## No space before parentheses
When writing expressions using if/while/do/for, there shall be no space
between the keyword and the open parenthesis. Like this:
while(1) {
/* loop forever */
}
## Use boolean conditions
Rather than test a conditional value such as a bool against TRUE or FALSE, a
pointer against NULL or != NULL and an int against zero or not zero in
if/while conditions we prefer:
result = do_something();
if(!result) {
/* something went wrong */
return result;
}
## No assignments in conditions
To increase readability and reduce complexity of conditionals, we avoid
assigning variables within if/while conditions. We frown upon this style:
if((ptr = malloc(100)) == NULL)
return NULL;
and instead we encourage the above version to be spelled out more clearly:
ptr = malloc(100);
if(!ptr)
return NULL;
## New block on a new line
We never write multiple statements on the same source line, even for very
short if() conditions.
if(a)
return TRUE;
else if(b)
return FALSE;
and NEVER:
if(a) return TRUE;
else if(b) return FALSE;
## Space around operators
Please use spaces on both sides of operators in C expressions. Postfix `(),
[], ->, ., ++, --` and Unary `+, - !, ~, &` operators excluded they should
have no space.
Examples:
bla = func();
who = name[0];
age += 1;
true = !false;
size += -2 + 3 * (a + b);
ptr->member = a++;
struct.field = b--;
ptr = &address;
contents = *pointer;
complement = ~bits;
empty = (!*string) ? TRUE : FALSE;
## Column alignment
Some statements cannot be completed on a single line because the line would
be too long, the statement too hard to read, or due to other style guidelines
above. In such a case the statement will span multiple lines.
If a continuation line is part of an expression or sub-expression then you
should align on the appropriate column so that it's easy to tell what part of
the statement it is. Operators should not start continuation lines. In other
cases follow the 2-space indent guideline. Here are some examples from libcurl:
~~~c
if(Curl_pipeline_wanted(handle->multi, CURLPIPE_HTTP1) &&
(handle->set.httpversion != CURL_HTTP_VERSION_1_0) &&
(handle->set.httpreq == HTTPREQ_GET ||
handle->set.httpreq == HTTPREQ_HEAD))
/* didn't ask for HTTP/1.0 and a GET or HEAD */
return TRUE;
~~~
~~~c
case CURLOPT_KEEP_SENDING_ON_ERROR:
data->set.http_keep_sending_on_error = (0 != va_arg(param, long)) ?
TRUE : FALSE;
break;
~~~
~~~c
data->set.http_disable_hostname_check_before_authentication =
(0 != va_arg(param, long)) ? TRUE : FALSE;
~~~
~~~c
if(option) {
result = parse_login_details(option, strlen(option),
(userp ? &user : NULL),
(passwdp ? &passwd : NULL),
NULL);
}
~~~
~~~c
DEBUGF(infof(data, "Curl_pp_readresp_ %d bytes of trailing "
"server response left\n",
(int)clipamount));
~~~
## Platform dependent code
Use `#ifdef HAVE_FEATURE` to do conditional code. We avoid checking for
particular operating systems or hardware in the #ifdef lines. The HAVE_FEATURE
shall be generated by the configure script for unix-like systems and they are
hard-coded in the config-[system].h files for the others.
We also encourage use of macros/functions that possibly are empty or defined
to constants when libcurl is built without that feature, to make the code
seamless. Like this style where the `magic()` function works differently
depending on a build-time conditional:
#ifdef HAVE_MAGIC
void magic(int a)
{
return a + 2;
}
#else
#define magic(x) 1
#endif
int content = magic(3);

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# Contributing to the curl project
This document is intended to offer guidelines on how to best contribute to the
curl project. This concerns new features as well as corrections to existing
flaws or bugs.
## Learning curl
### Join the Community
Skip over to [https://curl.haxx.se/mail/](https://curl.haxx.se/mail/) and join
the appropriate mailing list(s). Read up on details before you post
questions. Read this file before you start sending patches! We prefer
questions sent to and discussions being held on the mailing list(s), not sent
to individuals.
Before posting to one of the curl mailing lists, please read up on the
[mailing list etiquette](https://curl.haxx.se/mail/etiquette.html).
We also hang out on IRC in #curl on irc.freenode.net
If you're at all interested in the code side of things, consider clicking
'watch' on the [curl repo on github](https://github.com/curl/curl) to get
notified on pull requests and new issues posted there.
### License and copyright
When contributing with code, you agree to put your changes and new code under
the same license curl and libcurl is already using unless stated and agreed
otherwise.
If you add a larger piece of code, you can opt to make that file or set of
files to use a different license as long as they don't enforce any changes to
the rest of the package and they make sense. Such "separate parts" can not be
GPL licensed (as we don't want copyleft to affect users of libcurl) but they
must use "GPL compatible" licenses (as we want to allow users to use libcurl
properly in GPL licensed environments).
When changing existing source code, you do not alter the copyright of the
original file(s). The copyright will still be owned by the original creator(s)
or those who have been assigned copyright by the original author(s).
By submitting a patch to the curl project, you are assumed to have the right
to the code and to be allowed by your employer or whatever to hand over that
patch/code to us. We will credit you for your changes as far as possible, to
give credit but also to keep a trace back to who made what changes. Please
always provide us with your full real name when contributing!
### What To Read
Source code, the man pages, the [INTERNALS
document](https://curl.haxx.se/dev/internals.html),
[TODO](https://curl.haxx.se/docs/todo.html),
[KNOWN_BUGS](https://curl.haxx.se/docs/knownbugs.html) and the [most recent
changes](https://curl.haxx.se/dev/sourceactivity.html) in git. Just lurking on
the [curl-library mailing
list](https://curl.haxx.se/mail/list.cgi?list=curl-library) will give you a
lot of insights on what's going on right now. Asking there is a good idea too.
## Write a good patch
### Follow code style
When writing C code, follow the
[CODE_STYLE](https://curl.haxx.se/dev/code-style.html) already established in
the project. Consistent style makes code easier to read and mistakes less
likely to happen. Run `make checksrc` before you submit anything, to make sure
you follow the basic style. That script doesn't verify everything, but if it
complains you know you have work to do.
### Non-clobbering All Over
When you write new functionality or fix bugs, it is important that you don't
fiddle all over the source files and functions. Remember that it is likely
that other people have done changes in the same source files as you have and
possibly even in the same functions. If you bring completely new
functionality, try writing it in a new source file. If you fix bugs, try to
fix one bug at a time and send them as separate patches.
### Write Separate Changes
It is annoying when you get a huge patch from someone that is said to fix 511
odd problems, but discussions and opinions don't agree with 510 of them - or
509 of them were already fixed in a different way. Then the person merging
this change needs to extract the single interesting patch from somewhere
within the huge pile of source, and that gives a lot of extra work.
Preferably, each fix that correct a problem should be in its own patch/commit
with its own description/commit message stating exactly what they correct so
that all changes can be selectively applied by the maintainer or other
interested parties.
Also, separate changes enable bisecting much better when we track problems
and regression in the future.
### Patch Against Recent Sources
Please try to get the latest available sources to make your patches against.
It makes the lives of the developers so much easier. The very best is if you
get the most up-to-date sources from the git repository, but the latest
release archive is quite OK as well!
### Documentation
Writing docs is dead boring and one of the big problems with many open source
projects. Someone's gotta do it. It makes it a lot easier if you submit a
small description of your fix or your new features with every contribution so
that it can be swiftly added to the package documentation.
The documentation is always made in man pages (nroff formatted) or plain
ASCII files. All HTML files on the web site and in the release archives are
generated from the nroff/ASCII versions.
### Test Cases
Since the introduction of the test suite, we can quickly verify that the main
features are working as they're supposed to. To maintain this situation and
improve it, all new features and functions that are added need to be tested
in the test suite. Every feature that is added should get at least one valid
test case that verifies that it works as documented. If every submitter also
posts a few test cases, it won't end up as a heavy burden on a single person!
If you don't have test cases or perhaps you have done something that is very
hard to write tests for, do explain exactly how you have otherwise tested and
verified your changes.
## Sharing Your Changes
### How to get your changes into the main sources
Ideally you file a [pull request on
github](https://github.com/curl/curl/pulls), but you can also send your plain
patch to [the curl-library mailing
list](https://curl.haxx.se/mail/list.cgi?list=curl-library).
Either way, your change will be reviewed and discussed there and you will be
expected to correct flaws pointed out and update accordingly, or the change
risk stalling and eventually just get deleted without action. As a submitter
of a change, you are the owner of that change until it has been merged.
Respond on the list or on github about the change and answer questions and/or
fix nits/flaws. This is very important. We will take lack of replies as a
sign that you're not very anxious to get your patch accepted and we tend to
simply drop such changes.
### About pull requests
With github it is easy to send a [pull
request](https://github.com/curl/curl/pulls) to the curl project to have
changes merged.
We prefer pull requests to mailed patches, as it makes it a proper git commit
that is easy to merge and they are easy to track and not that easy to loose
in a flood of many emails, like they sometimes do on the mailing lists.
When you adjust your pull requests after review, consider squashing the
commits so that we can review the full updated version more easily.
### Making quality patches
Make the patch against as recent sources as possible.
If you've followed the tips in this document and your patch still hasn't been
incorporated or responded to after some weeks, consider resubmitting it to
the list or better yet: change it to a pull request.
### Write good commit messages
A short guide to how to write commit messages in the curl project.
---- start ----
[area]: [short line describing the main effect]
-- empty line --
[full description, no wider than 72 columns that describe as much as
possible as to why this change is made, and possibly what things
it fixes and everything else that is related]
-- empty line --
[Bug: URL to source of the report or more related discussion]
[Reported-by: John Doe - credit the reporter]
[whatever-else-by: credit all helpers, finders, doers]
---- stop ----
Don't forget to use commit --author="" if you commit someone else's work,
and make sure that you have your own user and email setup correctly in git
before you commit
### Write Access to git Repository
If you are a very frequent contributor, you may be given push access to the
git repository and then you'll be able to push your changes straight into the
git repo instead of sending changes as pull requests or by mail as patches.
Just ask if this is what you'd want. You will be required to have posted
several high quality patches first, before you can be granted push access.
### How To Make a Patch with git
You need to first checkout the repository:
git clone https://github.com/curl/curl.git
You then proceed and edit all the files you like and you commit them to your
local repository:
git commit [file]
As usual, group your commits so that you commit all changes that at once that
constitutes a logical change.
Once you have done all your commits and you're happy with what you see, you
can make patches out of your changes that are suitable for mailing:
git format-patch remotes/origin/master
This creates files in your local directory named NNNN-[name].patch for each
commit.
Now send those patches off to the curl-library list. You can of course opt to
do that with the 'git send-email' command.
### How To Make a Patch without git
Keep a copy of the unmodified curl sources. Make your changes in a separate
source tree. When you think you have something that you want to offer the
curl community, use GNU diff to generate patches.
If you have modified a single file, try something like:
diff -u unmodified-file.c my-changed-one.c > my-fixes.diff
If you have modified several files, possibly in different directories, you
can use diff recursively:
diff -ur curl-original-dir curl-modified-sources-dir > my-fixes.diff
The GNU diff and GNU patch tools exist for virtually all platforms, including
all kinds of Unixes and Windows:
For unix-like operating systems:
- [https://savannah.gnu.org/projects/patch/](https://savannah.gnu.org/projects/patch/)
- [https://www.gnu.org/software/diffutils/](https://www.gnu.org/software/diffutils/)
For Windows:
- [http://gnuwin32.sourceforge.net/packages/patch.htm](http://gnuwin32.sourceforge.net/packages/patch.htm)
- [http://gnuwin32.sourceforge.net/packages/diffutils.htm](http://gnuwin32.sourceforge.net/packages/diffutils.htm)

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_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
FEATURES
curl tool
- config file support
- multiple URLs in a single command line
- range "globbing" support: [0-13], {one,two,three}
- multiple file upload on a single command line
- custom maximum transfer rate
- redirectable stderr
- metalink support (*13)
libcurl
- full URL syntax with no length limit
- custom maximum download time
- custom least download speed acceptable
- custom output result after completion
- guesses protocol from host name unless specified
- uses .netrc
- progress bar with time statistics while downloading
- "standard" proxy environment variables support
- compiles on win32 (reported builds on 40+ operating systems)
- selectable network interface for outgoing traffic
- IPv6 support on unix and Windows
- persistent connections
- socks 4 + 5 support, with or without local name resolving
- supports user name and password in proxy environment variables
- operations through proxy "tunnel" (using CONNECT)
- support for large files (>2GB and >4GB) during upload and download
- replaceable memory functions (malloc, free, realloc, etc)
- asynchronous name resolving (*6)
- both a push and a pull style interface
- international domain names (*11)
HTTP
- HTTP/1.1 compliant (optionally uses 1.0)
- GET
- PUT
- HEAD
- POST
- Pipelining
- multipart formpost (RFC1867-style)
- authentication: Basic, Digest, NTLM (*9) and Negotiate (SPNEGO) (*3)
to server and proxy
- resume (both GET and PUT)
- follow redirects
- maximum amount of redirects to follow
- custom HTTP request
- cookie get/send fully parsed
- reads/writes the netscape cookie file format
- custom headers (replace/remove internally generated headers)
- custom user-agent string
- custom referrer string
- range
- proxy authentication
- time conditions
- via http-proxy
- retrieve file modification date
- Content-Encoding support for deflate and gzip
- "Transfer-Encoding: chunked" support in uploads
- data compression (*12)
- HTTP/2 (*5)
HTTPS (*1)
- (all the HTTP features)
- using client certificates
- verify server certificate
- via http-proxy
- select desired encryption
- force usage of a specific SSL version (SSLv2 (*7), SSLv3 (*10) or TLSv1)
FTP
- download
- authentication
- Kerberos 5 (*14)
- active/passive using PORT, EPRT, PASV or EPSV
- single file size information (compare to HTTP HEAD)
- 'type=' URL support
- dir listing
- dir listing names-only
- upload
- upload append
- upload via http-proxy as HTTP PUT
- download resume
- upload resume
- custom ftp commands (before and/or after the transfer)
- simple "range" support
- via http-proxy
- all operations can be tunneled through a http-proxy
- customizable to retrieve file modification date
- no dir depth limit
FTPS (*1)
- implicit ftps:// support that use SSL on both connections
- explicit "AUTH TLS" and "AUTH SSL" usage to "upgrade" plain ftp://
connection to use SSL for both or one of the connections
SCP (*8)
- both password and public key auth
SFTP (*8)
- both password and public key auth
- with custom commands sent before/after the transfer
TFTP
- download
- upload
TELNET
- connection negotiation
- custom telnet options
- stdin/stdout I/O
LDAP (*2)
- full LDAP URL support
DICT
- extended DICT URL support
FILE
- URL support
- upload
- resume
SMB
- SMBv1 over TCP and SSL
- download
- upload
- authentication with NTLMv1
SMTP
- authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9), Kerberos 5
(*4) and External.
- send e-mails
- mail from support
- mail size support
- mail auth support for trusted server-to-server relaying
- multiple recipients
- via http-proxy
SMTPS (*1)
- implicit smtps:// support
- explicit "STARTTLS" usage to "upgrade" plain smtp:// connections to use SSL
- via http-proxy
POP3
- authentication: Clear Text, APOP and SASL
- SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9),
Kerberos 5 (*4) and External.
- list e-mails
- retrieve e-mails
- enhanced command support for: CAPA, DELE, TOP, STAT, UIDL and NOOP via
custom requests
- via http-proxy
POP3S (*1)
- implicit pop3s:// support
- explicit "STLS" usage to "upgrade" plain pop3:// connections to use SSL
- via http-proxy
IMAP
- authentication: Clear Text and SASL
- SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9),
Kerberos 5 (*4) and External.
- list the folders of a mailbox
- select a mailbox with support for verifying the UIDVALIDITY
- fetch e-mails with support for specifying the UID and SECTION
- upload e-mails via the append command
- enhanced command support for: EXAMINE, CREATE, DELETE, RENAME, STATUS,
STORE, COPY and UID via custom requests
- via http-proxy
IMAPS (*1)
- implicit imaps:// support
- explicit "STARTTLS" usage to "upgrade" plain imap:// connections to use SSL
- via http-proxy
FOOTNOTES
=========
*1 = requires OpenSSL, GnuTLS, NSS, yassl, axTLS, PolarSSL, WinSSL (native
Windows), Secure Transport (native iOS/OS X) or GSKit (native IBM i)
*2 = requires OpenLDAP
*3 = requires a GSS-API implementation (such as Heimdal or MIT Kerberos) or
SSPI (native Windows)
*4 = requires a GSS-API implementation, however, only Windows SSPI is
currently supported
*5 = requires nghttp2 and possibly a recent TLS library
*6 = requires c-ares
*7 = requires OpenSSL, NSS, GSKit, WinSSL or Secure Transport; GnuTLS, for
example, only supports SSLv3 and TLSv1
*8 = requires libssh2
*9 = requires OpenSSL, GnuTLS, mbedTLS, NSS, yassl, Secure Transport or SSPI
(native Windows)
*10 = requires any of the SSL libraries in (*1) above other than axTLS, which
does not support SSLv3
*11 = requires libidn or Windows
*12 = requires libz
*13 = requires libmetalink, and either an Apple or Microsoft operating
system, or OpenSSL, or GnuTLS, or NSS
*14 = requires a GSS-API implementation (such as Heimdal or MIT Kerberos)

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How curl Became Like This
=========================
Towards the end of 1996, Daniel Stenberg was spending time writing an IRC bot
for an Amiga related channel on EFnet. He then came up with the idea to make
currency-exchange calculations available to Internet Relay Chat (IRC)
users. All the necessary data are published on the Web; he just needed to
automate their retrieval.
Daniel simply adopted an existing command-line open-source tool, httpget, that
Brazilian Rafael Sagula had written and recently release version 0.1 of. After
a few minor adjustments, it did just what he needed.
1997
----
HttpGet 1.0 was released on April 8th 1997 with brand new HTTP proxy support.
We soon found and fixed support for getting currencies over GOPHER. Once FTP
download support was added, the name of the project was changed and urlget 2.0
was released in August 1997. The http-only days were already passed.
1998
----
The project slowly grew bigger. When upload capabilities were added and the
name once again was misleading, a second name change was made and on March 20,
1998 curl 4 was released. (The version numbering from the previous names was
kept.)
(Unrelated to this project a company called Curl Corporation registered a US
trademark on the name "CURL" on May 18 1998. That company had then already
registered the curl.com domain back in November of the previous year. All this
was revealed to us much later.)
SSL support was added, powered by the SSLeay library.
August, first announcement of curl on freshmeat.net.
October, with the curl 4.9 release and the introduction of cookie support,
curl was no longer released under the GPL license. Now we're at 4000 lines of
code, we switched over to the MPL license to restrict the effects of
"copyleft".
November, configure script and reported successful compiles on several
major operating systems. The never-quite-understood -F option was added and
curl could now simulate quite a lot of a browser. TELNET support was added.
Curl 5 was released in December 1998 and introduced the first ever curl man
page. People started making Linux RPM packages out of it.
1999
----
January, DICT support added.
OpenSSL took over where SSLeay was abandoned.
May, first Debian package.
August, LDAP:// and FILE:// support added. The curl web site gets 1300 visits
weekly. Moved site to curl.haxx.nu.
Released curl 6.0 in September. 15000 lines of code.
December 28, added the project on Sourceforge and started using its services
for managing the project.
2000
----
Spring 2000, major internal overhaul to provide a suitable library interface.
The first non-beta release was named 7.1 and arrived in August. This offered
the easy interface and turned out to be the beginning of actually getting
other software and programs to get based on and powered by libcurl. Almost
20000 lines of code.
June 2000: the curl site moves to "curl.haxx.se"
August, the curl web site gets 4000 visits weekly.
The PHP guys adopted libcurl already the same month, when the first ever third
party libcurl binding showed up. CURL has been a supported module in PHP since
the release of PHP 4.0.2. This would soon get followers. More than 16
different bindings exist at the time of this writing.
September, kerberos4 support was added.
In November started the work on a test suite for curl. It was later re-written
from scratch again. The libcurl major SONAME number was set to 1.
2001
----
January, Daniel released curl 7.5.2 under a new license again: MIT (or
MPL). The MIT license is extremely liberal and can be used combined with GPL
in other projects. This would finally put an end to the "complaints" from
people involved in GPLed projects that previously were prohibited from using
libcurl while it was released under MPL only. (Due to the fact that MPL is
deemed "GPL incompatible".)
curl supports HTTP 1.1 starting with the release of 7.7, March 22 2001. This
also introduced libcurl's ability to do persistent connections. 24000 lines of
code. The libcurl major SONAME number was bumped to 2 due to this overhaul.
The first experimental ftps:// support was added in March 2001.
August. curl is bundled in Mac OS X, 10.1. It was already becoming more and
more of a standard utility of Linux distributions and a regular in the BSD
ports collections. The curl web site gets 8000 visits weekly. Curl Corporation
contacted Daniel to discuss "the name issue". After Daniel's reply, they have
never since got in touch again.
September, libcurl 7.9 introduces cookie jar and curl_formadd(). During the
forthcoming 7.9.x releases, we introduced the multi interface slowly and
without much whistles.
2002
----
June, the curl web site gets 13000 visits weekly. curl and libcurl is
35000 lines of code. Reported successful compiles on more than 40 combinations
of CPUs and operating systems.
To estimate number of users of the curl tool or libcurl library is next to
impossible. Around 5000 downloaded packages each week from the main site gives
a hint, but the packages are mirrored extensively, bundled with numerous OS
distributions and otherwise retrieved as part of other software.
September, with the release of curl 7.10 it is released under the MIT license
only.
2003
----
January. Started working on the distributed curl tests. The autobuilds.
February, the curl site averages at 20000 visits weekly. At any given moment,
there's an average of 3 people browsing the curl.haxx.se site.
Multiple new authentication schemes are supported: Digest (May), NTLM (June)
and Negotiate (June).
November: curl 7.10.8 is released. 45000 lines of code. ~55000 unique visitors
to the curl.haxx.se site. Five official web mirrors.
December, full-fledged SSL for FTP is supported.
2004
----
January: curl 7.11.0 introduced large file support.
June: curl 7.12.0 introduced IDN support. 10 official web mirrors.
This release bumped the major SONAME to 3 due to the removal of the
curl_formparse() function
August: Curl and libcurl 7.12.1
Public curl release number: 82
Releases counted from the very beginning: 109
Available command line options: 96
Available curl_easy_setopt() options: 120
Number of public functions in libcurl: 36
Amount of public web site mirrors: 12
Number of known libcurl bindings: 26
2005
----
April. GnuTLS can now optionally be used for the secure layer when curl is
built.
April: Added the multi_socket() API
September: TFTP support was added.
More than 100,000 unique visitors of the curl web site. 25 mirrors.
December: security vulnerability: libcurl URL Buffer Overflow
2006
----
January. We dropped support for Gopher. We found bugs in the implementation
that turned out having been introduced years ago, so with the conclusion that
nobody had found out in all this time we removed it instead of fixing it.
March: security vulnerability: libcurl TFTP Packet Buffer Overflow
September: The major SONAME number for libcurl was bumped to 4 due to the
removal of ftp third party transfer support.
November: Added SCP and SFTP support
2007
----
February: Added support for the Mozilla NSS library to do the SSL/TLS stuff
July: security vulnerability: libcurl GnuTLS insufficient cert verification
2008
----
November:
Command line options: 128
curl_easy_setopt() options: 158
Public functions in libcurl: 58
Known libcurl bindings: 37
Contributors: 683
145,000 unique visitors. >100 GB downloaded.
2009
----
March: security vulnerability: libcurl Arbitrary File Access
August: security vulnerability: libcurl embedded zero in cert name
December: Added support for IMAP, POP3 and SMTP
2010
----
January: Added support for RTSP
February: security vulnerability: libcurl data callback excessive length
March: The project switched over to use git (hosted by github) instead of CVS
for source code control
May: Added support for RTMP
Added support for PolarSSL to do the SSL/TLS stuff
August:
Public curl releases: 117
Command line options: 138
curl_easy_setopt() options: 180
Public functions in libcurl: 58
Known libcurl bindings: 39
Contributors: 808
Gopher support added (re-added actually)
2012
----
July: Added support for Schannel (native Windows TLS backend) and Darwin SSL
(Native Mac OS X and iOS TLS backend).
Supports metalink
October: SSH-agent support.
2013
----
February: Cleaned up internals to always uses the "multi" non-blocking
approach internally and only expose the blocking API with a wrapper.
September: First small steps on supporting HTTP/2 with nghttp2.
October: Removed krb4 support.
December: Happy eyeballs.
2014
----
March: first real release supporting HTTP/2
September: Web site had 245,000 unique visitors and served 236GB data

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# HTTP Cookies
## Cookie overview
Cookies are `name=contents` pairs that a HTTP server tells the client to
hold and then the client sends back those to the server on subsequent
requests to the same domains and paths for which the cookies were set.
Cookies are either "session cookies" which typically are forgotten when the
session is over which is often translated to equal when browser quits, or
the cookies aren't session cookies they have expiration dates after which
the client will throw them away.
Cookies are set to the client with the Set-Cookie: header and are sent to
servers with the Cookie: header.
For a very long time, the only spec explaining how to use cookies was the
original [Netscape spec from 1994](https://curl.haxx.se/rfc/cookie_spec.html).
In 2011, [RFC6265](https://www.ietf.org/rfc/rfc6265.txt) was finally
published and details how cookies work within HTTP.
## Cookies saved to disk
Netscape once created a file format for storing cookies on disk so that they
would survive browser restarts. curl adopted that file format to allow
sharing the cookies with browsers, only to see browsers move away from that
format. Modern browsers no longer use it, while curl still does.
The netscape cookie file format stores one cookie per physical line in the
file with a bunch of associated meta data, each field separated with
TAB. That file is called the cookiejar in curl terminology.
When libcurl saves a cookiejar, it creates a file header of its own in which
there is a URL mention that will link to the web version of this document.
## Cookies with curl the command line tool
curl has a full cookie "engine" built in. If you just activate it, you can
have curl receive and send cookies exactly as mandated in the specs.
Command line options:
`-b, --cookie`
tell curl a file to read cookies from and start the cookie engine, or if it
isn't a file it will pass on the given string. -b name=var works and so does
-b cookiefile.
`-j, --junk-session-cookies`
when used in combination with -b, it will skip all "session cookies" on load
so as to appear to start a new cookie session.
`-c, --cookie-jar`
tell curl to start the cookie engine and write cookies to the given file
after the request(s)
## Cookies with libcurl
libcurl offers several ways to enable and interface the cookie engine. These
options are the ones provided by the native API. libcurl bindings may offer
access to them using other means.
`CURLOPT_COOKIE`
Is used when you want to specify the exact contents of a cookie header to
send to the server.
`CURLOPT_COOKIEFILE`
Tell libcurl to activate the cookie engine, and to read the initial set of
cookies from the given file. Read-only.
`CURLOPT_COOKIEJAR`
Tell libcurl to activate the cookie engine, and when the easy handle is
closed save all known cookies to the given cookiejar file. Write-only.
`CURLOPT_COOKIELIST`
Provide detailed information about a single cookie to add to the internal
storage of cookies. Pass in the cookie as a HTTP header with all the details
set, or pass in a line from a netscape cookie file. This option can also be
used to flush the cookies etc.
`CURLINFO_COOKIELIST`
Extract cookie information from the internal cookie storage as a linked
list.
## Cookies with javascript
These days a lot of the web is built up by javascript. The webbrowser loads
complete programs that render the page you see. These javascript programs
can also set and access cookies.
Since curl and libcurl are plain HTTP clients without any knowledge of or
capability to handle javascript, such cookies will not be detected or used.
Often, if you want to mimic what a browser does on such web sites, you can
record web browser HTTP traffic when using such a site and then repeat the
cookie operations using curl or libcurl.

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HTTP/2 with curl
================
[HTTP/2 Spec](https://www.rfc-editor.org/rfc/rfc7540.txt)
[http2 explained](https://daniel.haxx.se/http2/)
Build prerequisites
-------------------
- nghttp2
- OpenSSL, libressl, BoringSSL, NSS, GnutTLS, mbedTLS, wolfSSL or SChannel
with a new enough version.
[nghttp2](https://nghttp2.org/)
-------------------------------
libcurl uses this 3rd party library for the low level protocol handling
parts. The reason for this is that HTTP/2 is much more complex at that layer
than HTTP/1.1 (which we implement on our own) and that nghttp2 is an already
existing and well functional library.
We require at least version 1.0.0.
Over an http:// URL
-------------------
If `CURLOPT_HTTP_VERSION` is set to `CURL_HTTP_VERSION_2_0`, libcurl will
include an upgrade header in the initial request to the host to allow
upgrading to HTTP/2.
Possibly we can later introduce an option that will cause libcurl to fail if
not possible to upgrade. Possibly we introduce an option that makes libcurl
use HTTP/2 at once over http://
Over an https:// URL
--------------------
If `CURLOPT_HTTP_VERSION` is set to `CURL_HTTP_VERSION_2_0`, libcurl will use
ALPN (or NPN) to negotiate which protocol to continue with. Possibly introduce
an option that will cause libcurl to fail if not possible to use HTTP/2.
`CURL_HTTP_VERSION_2TLS` was added in 7.47.0 as a way to ask libcurl to prefer
HTTP/2 for HTTPS but stick to 1.1 by default for plain old HTTP connections.
ALPN is the TLS extension that HTTP/2 is expected to use. The NPN extension is
for a similar purpose, was made prior to ALPN and is used for SPDY so early
HTTP/2 servers are implemented using NPN before ALPN support is widespread.
`CURLOPT_SSL_ENABLE_ALPN` and `CURLOPT_SSL_ENABLE_NPN` are offered to allow
applications to explicitly disable ALPN or NPN.
SSL libs
--------
The challenge is the ALPN and NPN support and all our different SSL
backends. You may need a fairly updated SSL library version for it to provide
the necessary TLS features. Right now we support:
- OpenSSL: ALPN and NPN
- libressl: ALPN and NPN
- BoringSSL: ALPN and NPN
- NSS: ALPN and NPN
- GnuTLS: ALPN
- mbedTLS: ALPN
- SChannel: ALPN
- wolfSSL: ALPN
Multiplexing
------------
Starting in 7.43.0, libcurl fully supports HTTP/2 multiplexing, which is the
term for doing multiple independent transfers over the same physical TCP
connection.
To take advantage of multiplexing, you need to use the multi interface and set
`CURLMOPT_PIPELINING` to `CURLPIPE_MULTIPLEX`. With that bit set, libcurl will
attempt to re-use existing HTTP/2 connections and just add a new stream over
that when doing subsequent parallel requests.
While libcurl sets up a connection to a HTTP server there is a period during
which it doesn't know if it can pipeline or do multiplexing and if you add new
transfers in that period, libcurl will default to start new connections for
those transfers. With the new option `CURLOPT_PIPEWAIT` (added in 7.43.0), you
can ask that a transfer should rather wait and see in case there's a
connection for the same host in progress that might end up being possible to
multiplex on. It favours keeping the number of connections low to the cost of
slightly longer time to first byte transferred.
Applications
------------
We hide HTTP/2's binary nature and convert received HTTP/2 traffic to headers
in HTTP 1.1 style. This allows applications to work unmodified.
curl tool
---------
curl offers the `--http2` command line option to enable use of HTTP/2.
curl offers the `--http2-prior-knowledge` command line option to enable use of
HTTP/2 without HTTP/1.1 Upgrade.
Since 7.47.0, the curl tool enables HTTP/2 by default for HTTPS connections.
curl tool limitations
---------------------
The command line tool won't do any HTTP/2 multiplexing even though libcurl
supports it, simply because the curl tool is not written to take advantage of
the libcurl API that's necessary for this (the multi interface). We have an
outstanding TODO item for this and **you** can help us make it happen.
The command line tool also doesn't support HTTP/2 server push for the same
reason it doesn't do multiplexing: it needs to use the multi interface for
that so that multiplexing is supported.
HTTP Alternative Services
-------------------------
Alt-Svc is an extension with a corresponding frame (ALTSVC) in HTTP/2 that
tells the client about an alternative "route" to the same content for the same
origin server that you get the response from. A browser or long-living client
can use that hint to create a new connection asynchronously. For libcurl, we
may introduce a way to bring such clues to the application and/or let a
subsequent request use the alternate route automatically.
[Detailed in RFC 7838](https://tools.ietf.org/html/rfc7838)

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# how to install curl and libcurl
## Installing Binary Packages
Lots of people download binary distributions of curl and libcurl. This
document does not describe how to install curl or libcurl using such a binary
package. This document describes how to compile, build and install curl and
libcurl from source code.
## Building from git
If you get your code off a git repository instead of a release tarball, see
the `GIT-INFO` file in the root directory for specific instructions on how to
proceed.
# Unix
A normal Unix installation is made in three or four steps (after you've
unpacked the source archive):
./configure
make
make test (optional)
make install
You probably need to be root when doing the last command.
Get a full listing of all available configure options by invoking it like:
./configure --help
If you want to install curl in a different file hierarchy than `/usr/local`,
specify that when running configure:
./configure --prefix=/path/to/curl/tree
If you have write permission in that directory, you can do 'make install'
without being root. An example of this would be to make a local install in
your own home directory:
./configure --prefix=$HOME
make
make install
The configure script always tries to find a working SSL library unless
explicitly told not to. If you have OpenSSL installed in the default search
path for your compiler/linker, you don't need to do anything special. If you
have OpenSSL installed in /usr/local/ssl, you can run configure like:
./configure --with-ssl
If you have OpenSSL installed somewhere else (for example, /opt/OpenSSL) and
you have pkg-config installed, set the pkg-config path first, like this:
env PKG_CONFIG_PATH=/opt/OpenSSL/lib/pkgconfig ./configure --with-ssl
Without pkg-config installed, use this:
./configure --with-ssl=/opt/OpenSSL
If you insist on forcing a build without SSL support, even though you may
have OpenSSL installed in your system, you can run configure like this:
./configure --without-ssl
If you have OpenSSL installed, but with the libraries in one place and the
header files somewhere else, you have to set the LDFLAGS and CPPFLAGS
environment variables prior to running configure. Something like this should
work:
CPPFLAGS="-I/path/to/ssl/include" LDFLAGS="-L/path/to/ssl/lib" ./configure
If you have shared SSL libs installed in a directory where your run-time
linker doesn't find them (which usually causes configure failures), you can
provide the -R option to ld on some operating systems to set a hard-coded
path to the run-time linker:
LDFLAGS=-R/usr/local/ssl/lib ./configure --with-ssl
## More Options
To force a static library compile, disable the shared library creation by
running configure like:
./configure --disable-shared
To tell the configure script to skip searching for thread-safe functions, add
an option like:
./configure --disable-thread
If you're a curl developer and use gcc, you might want to enable more debug
options with the `--enable-debug` option.
curl can be built to use a whole range of libraries to provide various useful
services, and configure will try to auto-detect a decent default. But if you
want to alter it, you can select how to deal with each individual library.
## Select TLS backend
The default OpenSSL configure check will also detect and use BoringSSL or
libressl.
- GnuTLS: `--without-ssl --with-gnutls`.
- Cyassl: `--without-ssl --with-cyassl`
- NSS: `--without-ssl --with-nss`
- PolarSSL: `--without-ssl --with-polarssl`
- mbedTLS: `--without-ssl --with-mbedtls`
- axTLS: `--without-ssl --with-axtls`
- schannel: `--without-ssl --with-winssl`
- secure transport: `--with-winssl --with-darwinssl`
# Windows
## Building Windows DLLs and C run-time (CRT) linkage issues
As a general rule, building a DLL with static CRT linkage is highly
discouraged, and intermixing CRTs in the same app is something to avoid at
any cost.
Reading and comprehending Microsoft Knowledge Base articles KB94248 and
KB140584 is a must for any Windows developer. Especially important is full
understanding if you are not going to follow the advice given above.
- [How To Use the C Run-Time](https://support.microsoft.com/kb/94248/en-us)
- [How to link with the correct C Run-Time CRT library](https://support.microsoft.com/kb/140584/en-us)
- [Potential Errors Passing CRT Objects Across DLL Boundaries](https://msdn.microsoft.com/en-us/library/ms235460)
If your app is misbehaving in some strange way, or it is suffering from
memory corruption, before asking for further help, please try first to
rebuild every single library your app uses as well as your app using the
debug multithreaded dynamic C runtime.
If you get linkage errors read section 5.7 of the FAQ document.
## MingW32
Make sure that MinGW32's bin dir is in the search path, for example:
set PATH=c:\mingw32\bin;%PATH%
then run `mingw32-make mingw32` in the root dir. There are other
make targets available to build libcurl with more features, use:
- `mingw32-make mingw32-zlib` to build with Zlib support;
- `mingw32-make mingw32-ssl-zlib` to build with SSL and Zlib enabled;
- `mingw32-make mingw32-ssh2-ssl-zlib` to build with SSH2, SSL, Zlib;
- `mingw32-make mingw32-ssh2-ssl-sspi-zlib` to build with SSH2, SSL, Zlib
and SSPI support.
If you have any problems linking libraries or finding header files, be sure
to verify that the provided "Makefile.m32" files use the proper paths, and
adjust as necessary. It is also possible to override these paths with
environment variables, for example:
set ZLIB_PATH=c:\zlib-1.2.8
set OPENSSL_PATH=c:\openssl-1.0.2c
set LIBSSH2_PATH=c:\libssh2-1.6.0
It is also possible to build with other LDAP SDKs than MS LDAP; currently
it is possible to build with native Win32 OpenLDAP, or with the Novell CLDAP
SDK. If you want to use these you need to set these vars:
set LDAP_SDK=c:\openldap
set USE_LDAP_OPENLDAP=1
or for using the Novell SDK:
set USE_LDAP_NOVELL=1
If you want to enable LDAPS support then set LDAPS=1.
## Cygwin
Almost identical to the unix installation. Run the configure script in the
curl source tree root with `sh configure`. Make sure you have the sh
executable in /bin/ or you'll see the configure fail toward the end.
Run `make`
## Borland C++ compiler
Ensure that your build environment is properly set up to use the compiler and
associated tools. PATH environment variable must include the path to bin
subdirectory of your compiler installation, eg: `c:\Borland\BCC55\bin`
It is advisable to set environment variable BCCDIR to the base path of the
compiler installation.
set BCCDIR=c:\Borland\BCC55
In order to build a plain vanilla version of curl and libcurl run the
following command from curl's root directory:
make borland
To build curl and libcurl with zlib and OpenSSL support set environment
variables `ZLIB_PATH` and `OPENSSL_PATH` to the base subdirectories of the
already built zlib and OpenSSL libraries and from curl's root directory run
command:
make borland-ssl-zlib
libcurl library will be built in 'lib' subdirectory while curl tool is built
in 'src' subdirectory. In order to use libcurl library it is advisable to
modify compiler's configuration file bcc32.cfg located in
`c:\Borland\BCC55\bin` to reflect the location of libraries include paths for
example the '-I' line could result in something like:
-I"c:\Borland\BCC55\include;c:\curl\include;c:\openssl\inc32"
bcc3.cfg `-L` line could also be modified to reflect the location of of
libcurl library resulting for example:
-L"c:\Borland\BCC55\lib;c:\curl\lib;c:\openssl\out32"
In order to build sample program `simple.c` from the docs\examples
subdirectory run following command from mentioned subdirectory:
bcc32 simple.c libcurl.lib cw32mt.lib
In order to build sample program simplessl.c an SSL enabled libcurl is
required, as well as the OpenSSL libeay32.lib and ssleay32.lib libraries.
## Disabling Specific Protocols in Windows builds
The configure utility, unfortunately, is not available for the Windows
environment, therefore, you cannot use the various disable-protocol options of
the configure utility on this platform.
However, you can use the following defines to disable specific
protocols:
- `HTTP_ONLY` disables all protocols except HTTP
- `CURL_DISABLE_FTP` disables FTP
- `CURL_DISABLE_LDAP` disables LDAP
- `CURL_DISABLE_TELNET` disables TELNET
- `CURL_DISABLE_DICT` disables DICT
- `CURL_DISABLE_FILE` disables FILE
- `CURL_DISABLE_TFTP` disables TFTP
- `CURL_DISABLE_HTTP` disables HTTP
- `CURL_DISABLE_IMAP` disables IMAP
- `CURL_DISABLE_POP3` disables POP3
- `CURL_DISABLE_SMTP` disables SMTP
If you want to set any of these defines you have the following options:
- Modify lib/config-win32.h
- Modify lib/curl_setup.h
- Modify lib/Makefile.vc6
- Modify the "Preprocessor Definitions" in the libcurl project
Note: The pre-processor settings can be found using the Visual Studio IDE
under "Project -> Settings -> C/C++ -> General" in VC6 and "Project ->
Properties -> Configuration Properties -> C/C++ -> Preprocessor" in later
versions.
## Using BSD-style lwIP instead of Winsock TCP/IP stack in Win32 builds
In order to compile libcurl and curl using BSD-style lwIP TCP/IP stack it is
necessary to make definition of preprocessor symbol USE_LWIPSOCK visible to
libcurl and curl compilation processes. To set this definition you have the
following alternatives:
- Modify lib/config-win32.h and src/config-win32.h
- Modify lib/Makefile.vc6
- Modify the "Preprocessor Definitions" in the libcurl project
Note: The pre-processor settings can be found using the Visual Studio IDE
under "Project -> Settings -> C/C++ -> General" in VC6 and "Project ->
Properties -> Configuration Properties -> C/C++ -> Preprocessor" in later
versions.
Once that libcurl has been built with BSD-style lwIP TCP/IP stack support, in
order to use it with your program it is mandatory that your program includes
lwIP header file `<lwip/opt.h>` (or another lwIP header that includes this)
before including any libcurl header. Your program does not need the
`USE_LWIPSOCK` preprocessor definition which is for libcurl internals only.
Compilation has been verified with [lwIP
1.4.0](http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip) and
[contrib-1.4.0](http://download.savannah.gnu.org/releases/lwip/contrib-1.4.0.zip).
This BSD-style lwIP TCP/IP stack support must be considered experimental given
that it has been verified that lwIP 1.4.0 still needs some polish, and libcurl
might yet need some additional adjustment, caveat emptor.
## Important static libcurl usage note
When building an application that uses the static libcurl library on Windows,
you must add `-DCURL_STATICLIB` to your `CFLAGS`. Otherwise the linker will
look for dynamic import symbols.
## Legacy Windows and SSL
WinSSL (specifically SChannel from Windows SSPI), is the native SSL library in
Windows. However, WinSSL in Windows <= XP is unable to connect to servers that
no longer support the legacy handshakes and algorithms used by those
versions. If you will be using curl in one of those earlier versions of
Windows you should choose another SSL backend such as OpenSSL.
# Apple iOS and Mac OS X
On modern Apple operating systems, curl can be built to use Apple's SSL/TLS
implementation, Secure Transport, instead of OpenSSL. To build with Secure
Transport for SSL/TLS, use the configure option `--with-darwinssl`. (It is not
necessary to use the option `--without-ssl`.) This feature requires iOS 5.0 or
later, or OS X 10.5 ("Leopard") or later.
When Secure Transport is in use, the curl options `--cacert` and `--capath`
and their libcurl equivalents, will be ignored, because Secure Transport uses
the certificates stored in the Keychain to evaluate whether or not to trust
the server. This, of course, includes the root certificates that ship with the
OS. The `--cert` and `--engine` options, and their libcurl equivalents, are
currently unimplemented in curl with Secure Transport.
For OS X users: In OS X 10.8 ("Mountain Lion"), Apple made a major overhaul to
the Secure Transport API that, among other things, added support for the newer
TLS 1.1 and 1.2 protocols. To get curl to support TLS 1.1 and 1.2, you must
build curl on Mountain Lion or later, or by using the equivalent SDK. If you
set the `MACOSX_DEPLOYMENT_TARGET` environmental variable to an earlier
version of OS X prior to building curl, then curl will use the new Secure
Transport API on Mountain Lion and later, and fall back on the older API when
the same curl binary is executed on older cats. For example, running these
commands in curl's directory in the shell will build the code such that it
will run on cats as old as OS X 10.6 ("Snow Leopard") (using bash):
export MACOSX_DEPLOYMENT_TARGET="10.6"
./configure --with-darwinssl
make
# Cross compile
Download and unpack the curl package.
'cd' to the new directory. (e.g. `cd curl-7.12.3`)
Set environment variables to point to the cross-compile toolchain and call
configure with any options you need. Be sure and specify the `--host` and
`--build` parameters at configuration time. The following script is an
example of cross-compiling for the IBM 405GP PowerPC processor using the
toolchain from MonteVista for Hardhat Linux.
#! /bin/sh
export PATH=$PATH:/opt/hardhat/devkit/ppc/405/bin
export CPPFLAGS="-I/opt/hardhat/devkit/ppc/405/target/usr/include"
export AR=ppc_405-ar
export AS=ppc_405-as
export LD=ppc_405-ld
export RANLIB=ppc_405-ranlib
export CC=ppc_405-gcc
export NM=ppc_405-nm
./configure --target=powerpc-hardhat-linux
--host=powerpc-hardhat-linux
--build=i586-pc-linux-gnu
--prefix=/opt/hardhat/devkit/ppc/405/target/usr/local
--exec-prefix=/usr/local
You may also need to provide a parameter like `--with-random=/dev/urandom` to
configure as it cannot detect the presence of a random number generating
device for a target system. The `--prefix` parameter specifies where curl
will be installed. If `configure` completes successfully, do `make` and `make
install` as usual.
In some cases, you may be able to simplify the above commands to as little as:
./configure --host=ARCH-OS
# REDUCING SIZE
There are a number of configure options that can be used to reduce the size of
libcurl for embedded applications where binary size is an important factor.
First, be sure to set the CFLAGS variable when configuring with any relevant
compiler optimization flags to reduce the size of the binary. For gcc, this
would mean at minimum the -Os option, and potentially the `-march=X`,
`-mdynamic-no-pic` and `-flto` options as well, e.g.
./configure CFLAGS='-Os' LDFLAGS='-Wl,-Bsymbolic'...
Note that newer compilers often produce smaller code than older versions
due to improved optimization.
Be sure to specify as many `--disable-` and `--without-` flags on the
configure command-line as you can to disable all the libcurl features that you
know your application is not going to need. Besides specifying the
`--disable-PROTOCOL` flags for all the types of URLs your application will not
use, here are some other flags that can reduce the size of the library:
- `--disable-ares` (disables support for the C-ARES DNS library)
- `--disable-cookies` (disables support for HTTP cookies)
- `--disable-crypto-auth` (disables HTTP cryptographic authentication)
- `--disable-ipv6` (disables support for IPv6)
- `--disable-manual` (disables support for the built-in documentation)
- `--disable-proxy` (disables support for HTTP and SOCKS proxies)
- `--disable-unix-sockets` (disables support for UNIX sockets)
- `--disable-verbose` (eliminates debugging strings and error code strings)
- `--disable-versioned-symbols` (disables support for versioned symbols)
- `--enable-hidden-symbols` (eliminates unneeded symbols in the shared library)
- `--without-libidn` (disables support for the libidn DNS library)
- `--without-librtmp` (disables support for RTMP)
- `--without-ssl` (disables support for SSL/TLS)
- `--without-zlib` (disables support for on-the-fly decompression)
The GNU compiler and linker have a number of options that can reduce the
size of the libcurl dynamic libraries on some platforms even further.
Specify them by providing appropriate CFLAGS and LDFLAGS variables on the
configure command-line, e.g.
CFLAGS="-Os -ffunction-sections -fdata-sections
-fno-unwind-tables -fno-asynchronous-unwind-tables -flto"
LDFLAGS="-Wl,-s -Wl,-Bsymbolic -Wl,--gc-sections"
Be sure also to strip debugging symbols from your binaries after compiling
using 'strip' (or the appropriate variant if cross-compiling). If space is
really tight, you may be able to remove some unneeded sections of the shared
library using the -R option to objcopy (e.g. the .comment section).
Using these techniques it is possible to create a basic HTTP-only shared
libcurl library for i386 Linux platforms that is only 113 KiB in size, and an
FTP-only library that is 113 KiB in size (as of libcurl version 7.50.3, using
gcc 5.4.0).
You may find that statically linking libcurl to your application will result
in a lower total size than dynamically linking.
Note that the curl test harness can detect the use of some, but not all, of
the `--disable` statements suggested above. Use will cause tests relying on
those features to fail. The test harness can be manually forced to skip the
relevant tests by specifying certain key words on the runtests.pl command
line. Following is a list of appropriate key words:
- `--disable-cookies` !cookies
- `--disable-manual` !--manual
- `--disable-proxy` !HTTP\ proxy !proxytunnel !SOCKS4 !SOCKS5
# PORTS
This is a probably incomplete list of known hardware and operating systems
that curl has been compiled for. If you know a system curl compiles and
runs on, that isn't listed, please let us know!
- Alpha DEC OSF 4
- Alpha Digital UNIX v3.2
- Alpha FreeBSD 4.1, 4.5
- Alpha Linux 2.2, 2.4
- Alpha NetBSD 1.5.2
- Alpha OpenBSD 3.0
- Alpha OpenVMS V7.1-1H2
- Alpha Tru64 v5.0 5.1
- AVR32 Linux
- ARM Android 1.5, 2.1, 2.3, 3.2, 4.x
- ARM INTEGRITY
- ARM iOS
- Cell Linux
- Cell Cell OS
- HP-PA HP-UX 9.X 10.X 11.X
- HP-PA Linux
- HP3000 MPE/iX
- MicroBlaze uClinux
- MIPS IRIX 6.2, 6.5
- MIPS Linux
- OS/400
- Pocket PC/Win CE 3.0
- Power AIX 3.2.5, 4.2, 4.3.1, 4.3.2, 5.1, 5.2
- PowerPC Darwin 1.0
- PowerPC INTEGRITY
- PowerPC Linux
- PowerPC Mac OS 9
- PowerPC Mac OS X
- SH4 Linux 2.6.X
- SH4 OS21
- SINIX-Z v5
- Sparc Linux
- Sparc Solaris 2.4, 2.5, 2.5.1, 2.6, 7, 8, 9, 10
- Sparc SunOS 4.1.X
- StrongARM (and other ARM) RISC OS 3.1, 4.02
- StrongARM/ARM7/ARM9 Linux 2.4, 2.6
- StrongARM NetBSD 1.4.1
- Symbian OS (P.I.P.S.) 9.x
- TPF
- Ultrix 4.3a
- UNICOS 9.0
- i386 BeOS
- i386 DOS
- i386 eCos 1.3.1
- i386 Esix 4.1
- i386 FreeBSD
- i386 HURD
- i386 Haiku OS
- i386 Linux 1.3, 2.0, 2.2, 2.3, 2.4, 2.6
- i386 Mac OS X
- i386 MINIX 3.1
- i386 NetBSD
- i386 Novell NetWare
- i386 OS/2
- i386 OpenBSD
- i386 QNX 6
- i386 SCO unix
- i386 Solaris 2.7
- i386 Windows 95, 98, ME, NT, 2000, XP, 2003
- i486 ncr-sysv4.3.03 (NCR MP-RAS)
- ia64 Linux 2.3.99
- m68k AmigaOS 3
- m68k Linux
- m68k uClinux
- m68k OpenBSD
- m88k dg-dgux5.4R3.00
- s390 Linux
- x86_64 Linux
- XScale/PXA250 Linux 2.4
- Nios II uClinux

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Known Bugs
These are problems and bugs known to exist at the time of this release. Feel
free to join in and help us correct one or more of these! Also be sure to
check the changelog of the current development status, as one or more of these
problems may have been fixed or changed somewhat since this was written!
1. HTTP
1.1 CURLFORM_CONTENTLEN in an array
1.2 Disabling HTTP Pipelining
1.3 STARTTRANSFER time is wrong for HTTP POSTs
1.4 multipart formposts file name encoding
1.5 Expect-100 meets 417
1.6 Unnecessary close when 401 received waiting for 100
1.8 DNS timing is wrong for HTTP redirects
1.9 HTTP/2 frames while in the connection pool kill reuse
1.10 Strips trailing dot from host name
1.11 CURLOPT_SEEKFUNCTION not called with CURLFORM_STREAM
1.12 HTTP/2 server push enabled when no pushes can be accepted
2. TLS
2.1 Hangs with PolarSSL
2.2 CURLINFO_SSL_VERIFYRESULT has limited support
2.3 DER in keychain
2.4 GnuTLS backend skips really long certificate fields
3. Email protocols
3.1 IMAP SEARCH ALL truncated response
3.2 No disconnect command
3.3 SMTP to multiple recipients
3.4 POP3 expects "CRLF.CRLF" eob for some single-line responses
4. Command line
4.1 -J with %-encoded file nameas
4.2 -J with -C - fails
4.3 --retry and transfer timeouts
5. Build and portability issues
5.1 Windows Borland compiler
5.2 curl-config --libs contains private details
5.3 libidn and old iconv
5.4 AIX shared build with c-ares fails
5.5 can't handle Unicode arguments in Windows
5.6 cmake support gaps
5.7 Visual Studio project gaps
5.8 configure finding libs in wrong directory
5.9 Utilize Requires.private directives in libcurl.pc
5.10 Fix the gcc typechecks
6. Authentication
6.1 NTLM authentication and unicode
6.2 MIT Kerberos for Windows build
6.3 NTLM in system context uses wrong name
6.4 Negotiate and Kerberos V5 need a fake user name
7. FTP
7.1 FTP without or slow 220 response
7.2 FTP with CONNECT and slow server
7.3 FTP with NOBODY and FAILONERROR
7.4 FTP with ACCT
7.5 ASCII FTP
7.6 FTP with NULs in URL parts
7.7 FTP and empty path parts in the URL
7.8 Premature transfer end but healthy control channel
8. TELNET
8.1 TELNET and time limtiations don't work
8.2 Microsoft telnet server
9. SFTP and SCP
9.1 SFTP doesn't do CURLOPT_POSTQUOTE correct
10. SOCKS
10.1 SOCKS proxy connections are done blocking
10.2 SOCKS don't support timeouts
10.3 FTPS over SOCKS
10.4 active FTP over a SOCKS
11. Internals
11.1 Curl leaks .onion hostnames in DNS
11.2 error buffer not set if connection to multiple addresses fails
11.3 c-ares deviates from stock resolver on http://1346569778
12. LDAP and OpenLDAP
12.1 OpenLDAP hangs after returning results
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address
==============================================================================
1. HTTP
1.1 CURLFORM_CONTENTLEN in an array
It is not possible to pass a 64-bit value using CURLFORM_CONTENTLEN with
CURLFORM_ARRAY, when compiled on 32-bit platforms that support 64-bit
integers. This is because the underlying structure 'curl_forms' uses a dual
purpose char* for storing these values in via casting. For more information
see the now closed related issue:
https://github.com/curl/curl/issues/608
1.2 Disabling HTTP Pipelining
Disabling HTTP Pipelining when there are ongoing transfers can lead to
heap corruption and crash. https://curl.haxx.se/bug/view.cgi?id=1411
1.3 STARTTRANSFER time is wrong for HTTP POSTs
Wrong STARTTRANSFER timer accounting for POST requests Timer works fine with
GET requests, but while using POST the time for CURLINFO_STARTTRANSFER_TIME
is wrong. While using POST CURLINFO_STARTTRANSFER_TIME minus
CURLINFO_PRETRANSFER_TIME is near to zero every time.
https://github.com/curl/curl/issues/218
https://curl.haxx.se/bug/view.cgi?id=1213
1.4 multipart formposts file name encoding
When creating multipart formposts. The file name part can be encoded with
something beyond ascii but currently libcurl will only pass in the verbatim
string the app provides. There are several browsers that already do this
encoding. The key seems to be the updated draft to RFC2231:
https://tools.ietf.org/html/draft-reschke-rfc2231-in-http-02
1.5 Expect-100 meets 417
If an upload using Expect: 100-continue receives an HTTP 417 response, it
ought to be automatically resent without the Expect:. A workaround is for
the client application to redo the transfer after disabling Expect:.
https://curl.haxx.se/mail/archive-2008-02/0043.html
1.6 Unnecessary close when 401 received waiting for 100
libcurl closes the connection if an HTTP 401 reply is received while it is
waiting for the the 100-continue response.
https://curl.haxx.se/mail/lib-2008-08/0462.html
1.8 DNS timing is wrong for HTTP redirects
When extracting timing information after HTTP redirects, only the last
transfer's results are returned and not the totals:
https://github.com/curl/curl/issues/522
1.9 HTTP/2 frames while in the connection pool kill reuse
If the server sends HTTP/2 frames (like for example an HTTP/2 PING frame) to
curl while the connection is held in curl's connection pool, the socket will
be found readable when considered for reuse and that makes curl think it is
dead and then it will be closed and a new connection gets created instead.
This is *best* fixed by adding monitoring to connections while they are kept
in the pool so that pings can be responded to appropriately.
1.10 Strips trailing dot from host name
When given a URL wit a trailing dot for the host name part:
"https://example.com./", libcurl will strip off the dot and use the name
without a dot internally and send it dot-less in HTTP Host: headers and in
the TLS SNI field.
The HTTP part violates RFC 7230 section 5.4 but the SNI part is accordance
with RFC 6066 section 3.
URLs using these trailing dots are very rare in the wild and we have not seen
or gotten any real-world problems with such URLs reported. The popular
browsers seem to have stayed with not stripping the dot for both uses (thus
they violate RFC 6066 instead of RFC 7230).
Daniel took the discussion to the HTTPbis mailing list in March 2016:
https://lists.w3.org/Archives/Public/ietf-http-wg/2016JanMar/0430.html but
there was not major rush or interest to fix this. The impression I get is
that most HTTP people rather not rock the boat now and instead prioritize web
compatibility rather than to strictly adhere to these RFCs.
Our current approach allows a knowing client to send a custom HTTP header
with the dot added.
It can also be noted that while adding a trailing dot to the host name in
most (all?) cases will make the name resolve to the same set of IP addresses,
many HTTP servers will not happily accept the trailing dot there unless that
has been specificly configured to be a fine virtual host.
If URLs with trailing dots for host names become more popular or even just
used more than for just plain fun experiments, I'm sure we will have reason
to go back and reconsider.
See https://github.com/curl/curl/issues/716 for the discussion.
1.11 CURLOPT_SEEKFUNCTION not called with CURLFORM_STREAM
I'm using libcurl to POST form data using a FILE* with the CURLFORM_STREAM
option of curl_formadd(). I've noticed that if the connection drops at just
the right time, the POST is reattempted without the data from the file. It
seems like the file stream position isn't getting reset to the beginning of
the file. I found the CURLOPT_SEEKFUNCTION option and set that with a
function that performs an fseek() on the FILE*. However, setting that didn't
seem to fix the issue or even get called. See
https://github.com/curl/curl/issues/768
1.12 HTTP/2 server push enabled when no pushes can be accepted
If the easy interface is used, we can't accept any server pushes so we should
switch off them already in the h2 settings as otherwise we risk wasting
bandwidth when the server tries to send pushes libcurl will never accept.
See https://github.com/curl/curl/issues/927
2. TLS
2.1 Hangs with PolarSSL
"curl_easy_perform hangs with imap and PolarSSL"
https://github.com/curl/curl/issues/334
Most likely, a fix similar to commit c111178bd4 (for mbedTLS) is
necessary. Or if we just wait a little longer we'll rip out all support for
PolarSSL instead...
2.2 CURLINFO_SSL_VERIFYRESULT has limited support
CURLINFO_SSL_VERIFYRESULT is only implemented for the OpenSSL and NSS
backends, so relying on this information in a generic app is flaky.
2.3 DER in keychain
Curl doesn't recognize certificates in DER format in keychain, but it works
with PEM. https://curl.haxx.se/bug/view.cgi?id=1065
2.4 GnuTLS backend skips really long certificate fields
libcurl calls gnutls_x509_crt_get_dn() with a fixed buffer size and if the
field is too long in the cert, it'll just return an error and the field will
be displayed blank.
3. Email protocols
3.1 IMAP SEARCH ALL truncated response
IMAP "SEARCH ALL" truncates output on large boxes. "A quick search of the
code reveals that pingpong.c contains some truncation code, at line 408, when
it deems the server response to be too large truncating it to 40 characters"
https://curl.haxx.se/bug/view.cgi?id=1366
3.2 No disconnect command
The disconnect commands (LOGOUT and QUIT) may not be sent by IMAP, POP3 and
SMTP if a failure occurs during the authentication phase of a connection.
3.3 SMTP to multiple recipients
When sending data to multiple recipients, curl will abort and return failure
if one of the recipients indicate failure (on the "RCPT TO"
command). Ordinary mail programs would proceed and still send to the ones
that can receive data. This is subject for change in the future.
https://curl.haxx.se/bug/view.cgi?id=1116
3.4 POP3 expects "CRLF.CRLF" eob for some single-line responses
You have to tell libcurl not to expect a body, when dealing with one line
response commands. Please see the POP3 examples and test cases which show
this for the NOOP and DELE commands. https://curl.haxx.se/bug/?i=740
4. Command line
4.1 -J with %-encoded file nameas
-J/--remote-header-name doesn't decode %-encoded file names. RFC6266 details
how it should be done. The can of worm is basically that we have no charset
handling in curl and ascii >=128 is a challenge for us. Not to mention that
decoding also means that we need to check for nastiness that is attempted,
like "../" sequences and the like. Probably everything to the left of any
embedded slashes should be cut off.
https://curl.haxx.se/bug/view.cgi?id=1294
4.2 -J with -C - fails
When using -J (with -O), automatically resumed downloading together with "-C
-" fails. Without -J the same command line works! This happens because the
resume logic is worked out before the target file name (and thus its
pre-transfer size) has been figured out!
https://curl.haxx.se/bug/view.cgi?id=1169
4.3 --retry and transfer timeouts
If using --retry and the transfer timeouts (possibly due to using -m or
-y/-Y) the next attempt doesn't resume the transfer properly from what was
downloaded in the previous attempt but will truncate and restart at the
original position where it was at before the previous failed attempt. See
https://curl.haxx.se/mail/lib-2008-01/0080.html and Mandriva bug report
https://qa.mandriva.com/show_bug.cgi?id=22565
5. Build and portability issues
5.1 Windows Borland compiler
When building with the Windows Borland compiler, it fails because the "tlib"
tool doesn't support hyphens (minus signs) in file names and we have such in
the build. https://curl.haxx.se/bug/view.cgi?id=1222
5.2 curl-config --libs contains private details
"curl-config --libs" will include details set in LDFLAGS when configure is
run that might be needed only for building libcurl. Further, curl-config
--cflags suffers from the same effects with CFLAGS/CPPFLAGS.
5.3 libidn and old iconv
Test case 165 might fail on a system which has libidn present, but with an
old iconv version (2.1.3 is a known bad version), since it doesn't recognize
the charset when named ISO8859-1. Changing the name to ISO-8859-1 makes the
test pass, but instead makes it fail on Solaris hosts that use its native
iconv.
5.4 AIX shared build with c-ares fails
curl version 7.12.2 fails on AIX if compiled with --enable-ares. The
workaround is to combine --enable-ares with --disable-shared
5.5 can't handle Unicode arguments in Windows
If a URL or filename can't be encoded using the user's current codepage then
it can only be encoded properly in the Unicode character set. Windows uses
UTF-16 encoding for Unicode and stores it in wide characters, however curl
and libcurl are not equipped for that at the moment. And, except for Cygwin,
Windows can't use UTF-8 as a locale.
https://curl.haxx.se/bug/?i=345
https://curl.haxx.se/bug/?i=731
5.6 cmake support gaps
The cmake build setup lacks several features that the autoconf build
offers. This includes:
- symbol hiding when the shared library is built
- use of correct soname for the shared library build
- support for several TLS backends are missing
- the unit tests cause link failures in regular non-static builds
- no nghttp2 check
5.7 Visual Studio project gaps
The Visual Studio projects lack some features that the autoconf and nmake
builds offer, such as the following:
- support for zlib and nghttp2
- use of static runtime libraries
- add the test suite components
In addition to this the following could be implemented:
- support for other development IDEs
- add PATH environment variables for third-party DLLs
5.8 configure finding libs in wrong directory
When the configure script checks for third-party libraries, it adds those
directories to the LDFLAGS variable and then tries linking to see if it
works. When successful, the found directory is kept in the LDFLAGS variable
when the script continues to execute and do more tests and possibly check for
more libraries.
This can make subsequent checks for libraries wrongly detect another
installation in a directory that was previously added to LDFLAGS by another
library check!
A possibly better way to do these checks would be to keep the pristine LDFLAGS
even after successful checks and instead add those verified paths to a
separate variable that only after all library checks have been performed gets
appended to LDFLAGS.
5.9 Utilize Requires.private directives in libcurl.pc
https://github.com/curl/curl/issues/864
5.10 Fix the gcc typechecks
Issue #846 identifies a problem with the gcc-typechecks and how the types are
documented and checked for CURLINFO_CERTINFO but our attempts to fix the
issue were futile and needs more attention.
https://github.com/curl/curl/issues/846
6. Authentication
6.1 NTLM authentication and unicode
NTLM authentication involving unicode user name or password only works
properly if built with UNICODE defined together with the WinSSL/schannel
backend. The original problem was mentioned in:
https://curl.haxx.se/mail/lib-2009-10/0024.html
https://curl.haxx.se/bug/view.cgi?id=896
The WinSSL/schannel version verified to work as mentioned in
https://curl.haxx.se/mail/lib-2012-07/0073.html
6.2 MIT Kerberos for Windows build
libcurl fails to build with MIT Kerberos for Windows (KfW) due to KfW's
library header files exporting symbols/macros that should be kept private to
the KfW library. See ticket #5601 at http://krbdev.mit.edu/rt/
6.3 NTLM in system context uses wrong name
NTLM authentication using SSPI (on Windows) when (lib)curl is running in
"system context" will make it use wrong(?) user name - at least when compared
to what winhttp does. See https://curl.haxx.se/bug/view.cgi?id=535
6.4 Negotiate and Kerberos V5 need a fake user name
In order to get Negotiate (SPNEGO) authentication to work in HTTP or Kerberos
V5 in the e-mail protocols, you need to provide a (fake) user name (this
concerns both curl and the lib) because the code wrongly only considers
authentication if there's a user name provided by setting
conn->bits.user_passwd in url.c https://curl.haxx.se/bug/view.cgi?id=440 How?
https://curl.haxx.se/mail/lib-2004-08/0182.html A possible solution is to
either modify this variable to be set or introduce a variable such as
new conn->bits.want_authentication which is set when any of the authentication
options are set.
7. FTP
7.1 FTP without or slow 220 response
If a connection is made to a FTP server but the server then just never sends
the 220 response or otherwise is dead slow, libcurl will not acknowledge the
connection timeout during that phase but only the "real" timeout - which may
surprise users as it is probably considered to be the connect phase to most
people. Brought up (and is being misunderstood) in:
https://curl.haxx.se/bug/view.cgi?id=856
7.2 FTP with CONNECT and slow server
When doing FTP over a socks proxy or CONNECT through HTTP proxy and the multi
interface is used, libcurl will fail if the (passive) TCP connection for the
data transfer isn't more or less instant as the code does not properly wait
for the connect to be confirmed. See test case 564 for a first shot at a test
case.
7.3 FTP with NOBODY and FAILONERROR
It seems sensible to be able to use CURLOPT_NOBODY and CURLOPT_FAILONERROR
with FTP to detect if a file exists or not, but it is not working:
https://curl.haxx.se/mail/lib-2008-07/0295.html
7.4 FTP with ACCT
When doing an operation over FTP that requires the ACCT command (but not when
logging in), the operation will fail since libcurl doesn't detect this and
thus fails to issue the correct command:
https://curl.haxx.se/bug/view.cgi?id=635
7.5 ASCII FTP
FTP ASCII transfers do not follow RFC959. They don't convert the data
accordingly (not for sending nor for receiving). RFC 959 section 3.1.1.1
clearly describes how this should be done:
The sender converts the data from an internal character representation to
the standard 8-bit NVT-ASCII representation (see the Telnet
specification). The receiver will convert the data from the standard
form to his own internal form.
Since 7.15.4 at least line endings are converted.
7.6 FTP with NULs in URL parts
FTP URLs passed to curl may contain NUL (0x00) in the RFC 1738 <user>,
<password>, and <fpath> components, encoded as "%00". The problem is that
curl_unescape does not detect this, but instead returns a shortened C string.
From a strict FTP protocol standpoint, NUL is a valid character within RFC
959 <string>, so the way to handle this correctly in curl would be to use a
data structure other than a plain C string, one that can handle embedded NUL
characters. From a practical standpoint, most FTP servers would not
meaningfully support NUL characters within RFC 959 <string>, anyway (e.g.,
Unix pathnames may not contain NUL).
7.7 FTP and empty path parts in the URL
libcurl ignores empty path parts in FTP URLs, whereas RFC1738 states that
such parts should be sent to the server as 'CWD ' (without an argument). The
only exception to this rule, is that we knowingly break this if the empty
part is first in the path, as then we use the double slashes to indicate that
the user wants to reach the root dir (this exception SHALL remain even when
this bug is fixed).
7.8 Premature transfer end but healthy control channel
When 'multi_done' is called before the transfer has been completed the normal
way, it is considered a "premature" transfer end. In this situation, libcurl
closes the connection assuming it doesn't know the state of the connection so
it can't be reused for subsequent requests.
With FTP however, this isn't necessarily true but there are a bunch of
situations (listed in the ftp_done code) where it *could* keep the connection
alive even in this situation - but the current code doesn't. Fixing this would
allow libcurl to reuse FTP connections better.
8. TELNET
8.1 TELNET and time limtiations don't work
When using telnet, the time limitation options don't work.
https://curl.haxx.se/bug/view.cgi?id=846
8.2 Microsoft telnet server
There seems to be a problem when connecting to the Microsoft telnet server.
https://curl.haxx.se/bug/view.cgi?id=649
9. SFTP and SCP
9.1 SFTP doesn't do CURLOPT_POSTQUOTE correct
When libcurl sends CURLOPT_POSTQUOTE commands when connected to a SFTP server
using the multi interface, the commands are not being sent correctly and
instead the connection is "cancelled" (the operation is considered done)
prematurely. There is a half-baked (busy-looping) patch provided in the bug
report but it cannot be accepted as-is. See
https://curl.haxx.se/bug/view.cgi?id=748
10. SOCKS
10.1 SOCKS proxy connections are done blocking
Both SOCKS5 and SOCKS4 proxy connections are done blocking, which is very bad
when used with the multi interface.
10.2 SOCKS don't support timeouts
The SOCKS4 connection codes don't properly acknowledge (connect) timeouts.
According to bug #1556528, even the SOCKS5 connect code does not do it right:
https://curl.haxx.se/bug/view.cgi?id=604
When connecting to a SOCK proxy, the (connect) timeout is not properly
acknowledged after the actual TCP connect (during the SOCKS "negotiate"
phase).
10.3 FTPS over SOCKS
libcurl doesn't support FTPS over a SOCKS proxy.
10.4 active FTP over a SOCKS
libcurl doesn't support active FTP over a SOCKS proxy
11. Internals
11.1 Curl leaks .onion hostnames in DNS
Curl sends DNS requests for hostnames with a .onion TLD. This leaks
information about what the user is attempting to access, and violates this
requirement of RFC7686: https://tools.ietf.org/html/rfc7686
Issue: https://github.com/curl/curl/issues/543
11.2 error buffer not set if connection to multiple addresses fails
If you ask libcurl to resolve a hostname like example.com to IPv6 addresses
only. But you only have IPv4 connectivity. libcurl will correctly fail with
CURLE_COULDNT_CONNECT. But the error buffer set by CURLOPT_ERRORBUFFER
remains empty. Issue: https://github.com/curl/curl/issues/544
11.3 c-ares deviates from stock resolver on http://1346569778
When using the socket resolvers, that URL becomes:
* Rebuilt URL to: http://1346569778/
* Trying 80.67.6.50...
but with c-ares it instead says "Could not resolve: 1346569778 (Domain name
not found)"
See https://github.com/curl/curl/issues/893
12. LDAP and OpenLDAP
12.1 OpenLDAP hangs after returning results
By configuration defaults, openldap automatically chase referrals on
secondary socket descriptors. The OpenLDAP backend is asynchronous and thus
should monitor all socket descriptors involved. Currently, these secondary
descriptors are not monitored, causing openldap library to never receive
data from them.
As a temporary workaround, disable referrals chasing by configuration.
The fix is not easy: proper automatic referrals chasing requires a
synchronous bind callback and monitoring an arbitrary number of socket
descriptors for a single easy handle (currently limited to 5).
Generic LDAP is synchronous: OK.
See https://github.com/curl/curl/issues/622 and
https://curl.haxx.se/mail/lib-2016-01/0101.html
13. TCP/IP
13.1 --interface for ipv6 binds to unusable IP address
Since IPv6 provides a lot of addresses with different scope, binding to an
IPv6 address needs to take the proper care so that it doesn't bind to a
locally scoped address as that is bound to fail.
https://github.com/curl/curl/issues/686

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License Mixing
==============
libcurl can be built to use a fair amount of various third party libraries,
libraries that are written and provided by other parties that are distributed
using their own licenses. Even libcurl itself contains code that may cause
problems to some. This document attempts to describe what licenses libcurl and
the other libraries use and what possible dilemmas linking and mixing them all
can lead to for end users.
I am not a lawyer and this is not legal advice!
One common dilemma is that [GPL](https://www.gnu.org/licenses/gpl.html)
licensed code is not allowed to be linked with code licensed under the
[Original BSD license](https://spdx.org/licenses/BSD-4-Clause.html) (with the
announcement clause). You may still build your own copies that use them all,
but distributing them as binaries would be to violate the GPL license - unless
you accompany your license with an
[exception](https://www.gnu.org/licenses/gpl-faq.html#GPLIncompatibleLibs). This
particular problem was addressed when the [Modified BSD
license](https://opensource.org/licenses/BSD-3-Clause) was created, which does
not have the announcement clause that collides with GPL.
## libcurl
Uses an [MIT style license](https://curl.haxx.se/docs/copyright.html) that is
very liberal.
## OpenSSL
(May be used for SSL/TLS support) Uses an Original BSD-style license with an
announcement clause that makes it "incompatible" with GPL. You are not
allowed to ship binaries that link with OpenSSL that includes GPL code
(unless that specific GPL code includes an exception for OpenSSL - a habit
that is growing more and more common). If OpenSSL's licensing is a problem
for you, consider using another TLS library.
## GnuTLS
(May be used for SSL/TLS support) Uses the
[LGPL](https://www.gnu.org/licenses/lgpl.html) license. If this is a problem
for you, consider using another TLS library. Also note that GnuTLS itself
depends on and uses other libs (libgcrypt and libgpg-error) and they too are
LGPL- or GPL-licensed.
## WolfSSL
(May be used for SSL/TLS support) Uses the GPL license or a proprietary
license. If this is a problem for you, consider using another TLS library.
## NSS
(May be used for SSL/TLS support) Is covered by the
[MPL](https://www.mozilla.org/MPL/) license, the GPL license and the LGPL
license. You may choose to license the code under MPL terms, GPL terms, or
LGPL terms. These licenses grant you different permissions and impose
different obligations. You should select the license that best meets your
needs.
## axTLS
(May be used for SSL/TLS support) Uses a Modified BSD-style license.
## mbedTLS
(May be used for SSL/TLS support) Uses the [Apache 2.0
license](https://opensource.org/licenses/Apache-2.0) or the GPL license.
You may choose to license the code under Apache 2.0 terms or GPL terms.
These licenses grant you different permissions and impose different
obligations. You should select the license that best meets your needs.
## BoringSSL
(May be used for SSL/TLS support) As an OpenSSL fork, it has the same
license as that.
## libressl
(May be used for SSL/TLS support) As an OpenSSL fork, it has the same
license as that.
## c-ares
(Used for asynchronous name resolves) Uses an MIT license that is very
liberal and imposes no restrictions on any other library or part you may link
with.
## zlib
(Used for compressed Transfer-Encoding support) Uses an MIT-style license
that shouldn't collide with any other library.
## MIT Kerberos
(May be used for GSS support) MIT licensed, that shouldn't collide with any
other parts.
## Heimdal
(May be used for GSS support) Heimdal is Original BSD licensed with the
announcement clause.
## GNU GSS
(May be used for GSS support) GNU GSS is GPL licensed. Note that you may not
distribute binary curl packages that uses this if you build curl to also link
and use any Original BSD licensed libraries!
## libidn
(Used for IDNA support) Uses the GNU Lesser General Public License [3]. LGPL
is a variation of GPL with slightly less aggressive "copyleft". This license
requires more requirements to be met when distributing binaries, see the
license for details. Also note that if you distribute a binary that includes
this library, you must also include the full LGPL license text. Please
properly point out what parts of the distributed package that the license
addresses.
## OpenLDAP
(Used for LDAP support) Uses a Modified BSD-style license. Since libcurl uses
OpenLDAP as a shared library only, I have not heard of anyone that ships
OpenLDAP linked with libcurl in an app.
## libssh2
(Used for scp and sftp support) libssh2 uses a Modified BSD-style license.

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_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
MAIL ETIQUETTE
1. About the lists
1.1 Mailing Lists
1.2 Netiquette
1.3 Do Not Mail a Single Individual
1.4 Subscription Required
1.5 Moderation of new posters
1.6 Handling trolls and spam
1.7 How to unsubscribe
1.8 I posted, now what?
2. Sending mail
2.1 Reply or New Mail
2.2 Reply to the List
2.3 Use a Sensible Subject
2.4 Do Not Top-Post
2.5 HTML is not for mails
2.6 Quoting
2.7 Digest
2.8 Please Tell Us How You Solved The Problem!
==============================================================================
1. About the lists
1.1 Mailing Lists
The mailing lists we have are all listed and described at
https://curl.haxx.se/mail/
Each mailing list is targeted to a specific set of users and subjects,
please use the one or the ones that suit you the most.
Each mailing list have hundreds up to thousands of readers, meaning that
each mail sent will be received and read by a very large amount of people.
People from various cultures, regions, religions and continents.
1.2 Netiquette
Netiquette is a common name for how to behave on the internet. Of course, in
each particular group and subculture there will be differences in what is
acceptable and what is considered good manners.
This document outlines what we in the curl project considers to be good
etiquette, and primarily this focus on how to behave on and how to use our
mailing lists.
1.3 Do Not Mail a Single Individual
Many people send one question to one person. One person gets many mails, and
there is only one person who can give you a reply. The question may be
something that other people are also wanting to ask. These other people have
no way to read the reply, but to ask the one person the question. The one
person consequently gets overloaded with mail.
If you really want to contact an individual and perhaps pay for his or her
services, by all means go ahead, but if it's just another curl question,
take it to a suitable list instead.
1.4 Subscription Required
All curl mailing lists require that you are subscribed to allow a mail to go
through to all the subscribers.
If you post without being subscribed (or from a different mail address than
the one you are subscribed with), your mail will simply be silently
discarded. You have to subscribe first, then post.
The reason for this unfortunate and strict subscription policy is of course
to stop spam from pestering the lists.
1.5 Moderation of new posters
Several of the curl mailing lists automatically make all posts from new
subscribers require moderation. This means that after you've subscribed and
send your first mail to a list, that mail will not be let through to the
list until a mailing list administrator has verified that it is OK and
permits it to get posted.
Once a first post has been made that proves the sender is actually talking
about curl-related subjects, the moderation "flag" will be switched off and
future posts will go through without being moderated.
The reason for this moderation policy is that we do suffer from spammers who
actually subscribe and send spam to our lists.
1.6 Handling trolls and spam
Despite our good intentions and hard work to keep spam off the lists and to
maintain a friendly and positive atmosphere, there will be times when spam
and or trolls get through.
Troll - "someone who posts inflammatory, extraneous, or off-topic messages
in an online community"
Spam - "use of electronic messaging systems to send unsolicited bulk
messages"
No matter what, we NEVER EVER respond to trolls or spammers on the list. If
you believe the list admin should do something particular, contact him/her
off-list. The subject will be taken care of as good as possible to prevent
repeated offenses, but responding on the list to such messages never lead to
anything good and only puts the light even more on the offender: which was
the entire purpose of it getting sent to the list in the first place.
Don't feed the trolls!
1.7 How to unsubscribe
You unsubscribe the same way you subscribed in the first place. You go to
the page for the particular mailing list you're subscribed to and you enter
your email address and password and press the unsubscribe button.
Also, this information is included in the headers of every mail that is sent
out to all curl related mailing lists and there's a footer in each mail that
links to the "admin" page on which you can unsubscribe and change other
options.
You NEVER EVER email the mailing list requesting someone else to get you off
the list.
1.8 I posted, now what?
If you aren't subscribed with the exact same email address that you used to
send the email, your post will just be silently discarded.
If you posted for the first time to the mailing list, you first need to wait
for an administrator to allow your email to go through. This normally
happens very quickly but in case we're asleep, you may have to wait a few
hours.
Once your email goes through it is sent out to several hundred or even
thousand recipients. Your email may cover an area that not that many people
know about or are interested in. Or possibly the person who knows about it
is on vacation or under a very heavy work load right now. You have to wait
for a response and you must not expect to get a response at all, but
hopefully you get an answer within a couple of days.
You do yourself and all of us a service when you include as many details as
possible already in your first email. Mention your operating system and
environment. Tell us which curl version you're using and tell us what you
did, what happened and what you expected would happen. Preferably, show us
what you did in details enough to allow others to help point out the problem
or repeat the same steps in their places.
Failing to include details will only delay responses and make people respond
and ask for the details and you have to send a follow-up email that includes
them.
Expect the responses to primarily help YOU debug the issue, or ask you
questions that can lead you or others towards a solution or explanation to
whatever you experience.
If you are a repeat offender to the guidelines outlined in this document,
chances are that people will ignore you at will and your chances to get
responses will greatly diminish.
2. Sending mail
2.1 Reply or New Mail
Please do not reply to an existing message as a short-cut to post a message
to the lists.
Many mail programs and web archivers use information within mails to keep
them together as "threads", as collections of posts that discuss a certain
subject. If you don't intend to reply on the same or similar subject, don't
just hit reply on an existing mail and change subject, create a new mail.
2.2 Reply to the List
When replying to a message from the list, make sure that you do "group
reply" or "reply to all", and not just reply to the author of the single
mail you reply to.
We're actively discouraging replying back to the single person by setting
the Reply-To: field in outgoing mails back to the mailing list address,
making it harder for people to mail the author only by mistake.
2.3 Use a Sensible Subject
Please use a subject of the mail that makes sense and that is related to the
contents of your mail. It makes it a lot easier to find your mail afterwards
and it makes it easier to track mail threads and topics.
2.4 Do Not Top-Post
If you reply to a message, don't use top-posting. Top-posting is when you
write the new text at the top of a mail and you insert the previous quoted
mail conversation below. It forces users to read the mail in a backwards
order to properly understand it.
This is why top posting is so bad:
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Apart from the screwed up read order (especially when mixed together in a
thread when someone responds using the mandated bottom-posting style), it
also makes it impossible to quote only parts of the original mail.
When you reply to a mail. You let the mail client insert the previous mail
quoted. Then you put the cursor on the first line of the mail and you move
down through the mail, deleting all parts of the quotes that don't add
context for your comments. When you want to add a comment you do so, inline,
right after the quotes that relate to your comment. Then you continue
downwards again.
When most of the quotes have been removed and you've added your own words,
you're done!
2.5 HTML is not for mails
Please switch off those HTML encoded messages. You can mail all those funny
mails to your friends. We speak plain text mails.
2.6 Quoting
Quote as little as possible. Just enough to provide the context you cannot
leave out. A lengthy description can be found here:
https://www.netmeister.org/news/learn2quote.html
2.7 Digest
We allow subscribers to subscribe to the "digest" version of the mailing
lists. A digest is a collection of mails lumped together in one single mail.
Should you decide to reply to a mail sent out as a digest, there are two
things you MUST consider if you really really cannot subscribe normally
instead:
Cut off all mails and chatter that is not related to the mail you want to
reply to.
Change the subject name to something sensible and related to the subject,
preferably even the actual subject of the single mail you wanted to reply to
2.8 Please Tell Us How You Solved The Problem!
Many people mail questions to the list, people spend some of their time and
make an effort in providing good answers to these questions.
If you are the one who asks, please consider responding once more in case
one of the hints was what solved your problems. The guys who write answers
feel good to know that they provided a good answer and that you fixed the
problem. Far too often, the person who asked the question is never heard of
again, and we never get to know if he/she is gone because the problem was
solved or perhaps because the problem was unsolvable!
Getting the solution posted also helps other users that experience the same
problem(s). They get to see (possibly in the web archives) that the
suggested fixes actually has helped at least one person.

1038
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_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
README.netware
Read the README file first.
Curl has been successfully compiled with gcc / nlmconv on different flavours
of Linux as well as with the official Metrowerks CodeWarrior compiler.
While not being the main development target, a continuously growing share of
curl users are NetWare-based, specially also consuming the lib from PHP.
The unix-style man pages are tricky to read on windows, so therefore are all
those pages converted to HTML as well as pdf, and included in the release
archives.
The main curl.1 man page is also "built-in" in the command line tool. Use a
command line similar to this in order to extract a separate text file:
curl -M >manual.txt
Read the INSTALL file for instructions how to compile curl self.

26
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_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
README.win32
Read the README file first.
Curl has been compiled, built and run on all sorts of Windows and win32
systems. While not being the main develop target, a fair share of curl users
are win32-based.
The unix-style man pages are tricky to read on windows, so therefore are all
those pages converted to HTML as well as pdf, and included in the release
archives.
The main curl.1 man page is also "built-in" in the command line tool. Use a
command line similar to this in order to extract a separate text file:
curl -M >manual.txt
Read the INSTALL file for instructions how to compile curl self.

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curl release procedure - how to do a release
============================================
in the source code repo
-----------------------
- edit `RELEASE-NOTES` to be accurate
- update `docs/THANKS`
- make sure all relevant changes are committed on the master branch
- tag the git repo in this style: `git tag -a curl-7_34_0`. -a annotates the
tag and we use underscores instead of dots in the version number.
- run "./maketgz 7.34.0" to build the release tarballs. It is important that
you run this on a machine with the correct set of autotools etc installed
as this is what then will be shipped and used by most users on *nix like
systems.
- push the git commits and the new tag
- gpg sign the 4 tarballs as maketgz suggests
- upload the 8 resulting files to the primary download directory
in the curl-www repo
--------------------
- edit `Makefile` (version number and date),
- edit `_newslog.html` (announce the new release) and
- edit `_changes.html` (insert changes+bugfixes from RELEASE-NOTES)
- commit all local changes
- tag the repo with the same tag as used for the source repo
- make sure all relevant changes are committed and pushed on the master branch
(the web site then updates its contents automatically)
on github
---------
- edit the newly made release tag so that it is listed as the latest release
inform
------
- send an email to curl-users, curl-announce and curl-library. Insert the
RELEASE-NOTES into the mail.
celebrate
---------
- suitable beverage intake is encouraged for the festivities
curl release scheduling
=======================
Basics
------
We do releases every 8 weeks on Wednesdays. If critical problems arise, we can
insert releases outside of the schedule or we can move the release date - but
this is very rare.
Each 8 week release cycle is split in two 4-week periods.
- During the first 4 weeks after a release, we allow new features and changes
to curl and libcurl. If we accept any such changes, we bump the minor number
used for the next release.
- During the second 4-week period we do not merge any features or changes, we
then only focus on fixing bugs and polishing things to make a solid coming
release.
Coming dates
------------
Based on the description above, here are some planned release dates (at the
time of this writing):
- September 7, 2016 (version 7.50.2)
- November 2, 2016
- December 28, 2016
- February 22, 2017
- April 19, 2017
- June 14, 2017
- August 9, 2017

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_ _ ____ _
Project ___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
This document lists documents and standards used by curl.
RFC 959 - The FTP protocol
RFC 1635 - How to Use Anonymous FTP
RFC 1738 - Uniform Resource Locators
RFC 1777 - defines the LDAP protocol
RFC 1808 - Relative Uniform Resource Locators
RFC 1867 - Form-based File Upload in HTML
RFC 1950 - ZLIB Compressed Data Format Specification
RFC 1951 - DEFLATE Compressed Data Format Specification
RFC 1952 - gzip compression format
RFC 1959 - LDAP URL syntax
RFC 2045-2049 - Everything you need to know about MIME! (needed for form
based upload)
RFC 2068 - HTTP 1.1 (obsoleted by RFC 2616)
RFC 2104 - Keyed-Hashing for Message Authentication
RFC 2109 - HTTP State Management Mechanism (cookie stuff)
- Also, read Netscape's specification at
https://curl.haxx.se/rfc/cookie_spec.html
RFC 2183 - The Content-Disposition Header Field
RFC 2195 - CRAM-MD5 authentication
RFC 2229 - A Dictionary Server Protocol
RFC 2255 - Newer LDAP URL syntax document.
RFC 2231 - MIME Parameter Value and Encoded Word Extensions:
Character Sets, Languages, and Continuations
RFC 2388 - "Returning Values from Forms: multipart/form-data"
Use this as an addition to the RFC1867
RFC 2396 - "Uniform Resource Identifiers: Generic Syntax and Semantics" This
one obsoletes RFC 1738, but since RFC 1738 is often mentioned
I've left it in this list.
RFC 2428 - FTP Extensions for IPv6 and NATs
RFC 2577 - FTP Security Considerations
RFC 2616 - HTTP 1.1, the latest
RFC 2617 - HTTP Authentication
RFC 2718 - Guidelines for new URL Schemes
RFC 2732 - Format for Literal IPv6 Addresses in URL's
RFC 2818 - HTTP Over TLS (TLS is the successor to SSL)
RFC 2821 - SMTP protocol
RFC 2964 - Use of HTTP State Management
RFC 2965 - HTTP State Management Mechanism. Cookies. Obsoletes RFC2109
RFC 3207 - SMTP over TLS
RFC 4616 - PLAIN authentication
RFC 4954 - SMTP Authentication

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curl the next few years - perhaps
=================================
Roadmap of things Daniel Stenberg and Steve Holme want to work on next. It is
intended to serve as a guideline for others for information, feedback and
possible participation.
HTTP/2
------
Improve performance. Measurements and tests have shown that in several cases
doing transfers over HTTP/2 can be notably slower than the same transfer done
over HTTP/1. Some of that difference can be attributed the inefficient window
size handling currently in use but there are probably more to be learned and
worked on to optimize this.
QUIC
----
The standardization process of QUIC has been taken to the IETF and can be
followed on the [IETF QUIC Mailing
list](https://www.ietf.org/mailman/listinfo/quic). I'd like us to get on the
bandwagon. Ideally, this would be done with a separate library/project to
handle the binary/framing layer in a similar fashion to how HTTP/2 is
implemented. This, to allow other projects to benefit from the work and to
thus broaden the interest and chance of others to participate.
TLS 1.3
-------
The new version of the TLS protocol is in the pipeline and will soon start to
get used out in the wild. It offers some new interesting features and will
need the TLS libraries to adapt and quite likely provide additional or
modified APIs. libcurl needs to adapt accordingly.
HTTP cookies
------------
Two cookie drafts have been adopted by the httpwg in IETF and we should
support them as the popular browsers will as well:
[Deprecate modification of 'secure' cookies from non-secure
origins](https://tools.ietf.org/html/draft-ietf-httpbis-cookie-alone-00)
[Cookie Prefixes](https://tools.ietf.org/html/draft-ietf-httpbis-cookie-prefixes-00)
[Firefox bug report about secure cookies](https://bugzilla.mozilla.org/show_bug.cgi?id=976073)
SRV records
-----------
How to find services for specific domains/hosts.
HTTPS to proxy
--------------
To avoid network traffic to/from the proxy getting snooped on. There's a git
branch in the public git repository for this that we need to make sure works
for all TLS backends and then merge!
curl_formadd()
--------------
make sure there's an easy handle passed in to `curl_formadd()`,
`curl_formget()` and `curl_formfree()` by adding replacement functions and
deprecating the old ones to allow custom mallocs and more
Third-party SASL
----------------
Add support for third-party SASL libraries such as Cyrus SASL.
SASL authentication in LDAP
---------------------------
...
Simplify the SMTP email
-----------------------
Simplify the SMTP email interface so that programmers don't have to
construct the body of an email that contains all the headers, alternative
content, images and attachments - maintain raw interface so that
programmers that want to do this can
email capabilities
------------------
Allow the email protocols to return the capabilities before
authenticating. This will allow an application to decide on the best
authentication mechanism
Win32 pthreads
--------------
Allow Windows threading model to be replaced by Win32 pthreads port
dynamic buffer size
-------------------
Implement a dynamic buffer size to allow SFTP to use much larger buffers and
possibly allow the size to be customizable by applications. Use less memory
when handles are not in use?
New stuff - curl
----------------
1. Embed a language interpreter (lua?). For that middle ground where curl
isn’t enough and a libcurl binding feels “too much”. Build-time conditional
of course.
2. Simplify the SMTP command line so that the headers and multi-part content
don't have to be constructed before calling curl
Improve
-------
1. build for windows (considered hard by many users)
2. curl -h output (considered overwhelming to users)
3. we have > 170 command line options, is there a way to redo things to
simplify or improve the situation as we are likely to keep adding
features/options in the future too
4. docs (considered "bad" by users but how do we make it better?)
- split up curl.1
5. authentication framework (consider merging HTTP and SASL authentication to
give one API for protocols to call)
6. Perform some of the clean up from the TODO document, removing old
definitions and such like that are currently earmarked to be removed years
ago
Remove
------
1. makefile.vc files as there is no point in maintaining two sets of Windows
makefiles. Note: These are currently being used by the Windows autobuilds

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curl security for developers
============================
This document is intended to provide guidance to curl developers on how
security vulnerabilities should be handled.
Publishing Information
----------------------
All known and public curl or libcurl related vulnerabilities are listed on
[the curl web site security page](https://curl.haxx.se/docs/security.html).
Security vulnerabilities should not be entered in the project's public bug
tracker unless the necessary configuration is in place to limit access to the
issue to only the reporter and the project's security team.
Vulnerability Handling
----------------------
The typical process for handling a new security vulnerability is as follows.
No information should be made public about a vulnerability until it is
formally announced at the end of this process. That means, for example that a
bug tracker entry must NOT be created to track the issue since that will make
the issue public and it should not be discussed on any of the project's public
mailing lists. Also messages associated with any commits should not make
any reference to the security nature of the commit if done prior to the public
announcement.
- The person discovering the issue, the reporter, reports the vulnerability
privately to `curl-security@haxx.se`. That's an email alias that reaches a
handful of selected and trusted people.
- Messages that do not relate to the reporting or managing of an undisclosed
security vulnerability in curl or libcurl are ignored and no further action
is required.
- A person in the security team sends an e-mail to the original reporter to
acknowledge the report.
- The security team investigates the report and either rejects it or accepts
it.
- If the report is rejected, the team writes to the reporter to explain why.
- If the report is accepted, the team writes to the reporter to let him/her
know it is accepted and that they are working on a fix.
- The security team discusses the problem, works out a fix, considers the
impact of the problem and suggests a release schedule. This discussion
should involve the reporter as much as possible.
- The release of the information should be "as soon as possible" and is most
often synced with an upcoming release that contains the fix. If the
reporter, or anyone else, thinks the next planned release is too far away
then a separate earlier release for security reasons should be considered.
- Write a security advisory draft about the problem that explains what the
problem is, its impact, which versions it affects, solutions or
workarounds, when the release is out and make sure to credit all
contributors properly.
- Request a CVE number from
[distros@openwall](http://oss-security.openwall.org/wiki/mailing-lists/distros)
when also informing and preparing them for the upcoming public security
vulnerability announcement - attach the advisory draft for information. Note
that 'distros' won't accept an embargo longer than 19 days and they do not
care for Windows-specific flaws. For windows-specific flaws, request CVE
directly from MITRE.
- Update the "security advisory" with the CVE number.
- The security team commits the fix in a private branch. The commit message
should ideally contain the CVE number. This fix is usually also distributed
to the 'distros' mailing list to allow them to use the fix prior to the
public announcement.
- No more than 48 hours before the release, the private branch is merged into
the master branch and pushed. Once pushed, the information is accessible to
the public and the actual release should follow suit immediately afterwards.
The time between the push and the release is used for final tests and
reviews.
- The project team creates a release that includes the fix.
- The project team announces the release and the vulnerability to the world in
the same manner we always announce releases. It gets sent to the
curl-announce, curl-library and curl-users mailing lists.
- The security web page on the web site should get the new vulnerability
mentioned.
Pre-notification
----------------
If you think you are or should be eligible for a pre-notification about
upcoming security announcements for curl, we urge OS distros and similar
vendors to primarily join the distros@openwall list as that is one of the
purposes of that list - and not just for curl of course.
If you are not a distro or otherwise not suitable for distros@openwall and yet
want pre-notifications from us, contact the curl security team with a detailed
and clear explanation why this is the case.
curl-security (at haxx dot se)
------------------------------
Who is on this list? There are a couple of criteria you must meet, and then we
might ask you to join the list or you can ask to join it. It really isn't very
formal. We basically only require that you have a long-term presence in the
curl project and you have shown an understanding for the project and its way
of working. You must've been around for a good while and you should have no
plans in vanishing in the near future.
We do not make the list of participants public mostly because it tends to vary
somewhat over time and a list somewhere will only risk getting outdated.

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# SSL problems
First, let's establish that we often refer to TLS and SSL interchangeably as
SSL here. The current protocol is called TLS, it was called SSL a long time
ago.
There are several known reasons why a connection that involves SSL might
fail. This is a document that attempts to details the most common ones and
how to mitigate them.
## CA certs
CA certs are used to digitally verify the server's certificate. You need a
"ca bundle" for this. See lots of more details on this in the SSLCERTS
document.
## CA bundle missing intermediate certificates
When using said CA bundle to verify a server cert, you will experience
problems if your CA cert does not have the certificates for the
intermediates in the whole trust chain.
## Protocol version
Some broken servers fail to support the protocol negotiation properly that
SSL servers are supposed to handle. This may cause the connection to fail
completely. Sometimes you may need to explicitly select a SSL version to use
when connecting to make the connection succeed.
An additional complication can be that modern SSL libraries sometimes are
built with support for older SSL and TLS versions disabled!
All versions of SSL are considered insecure and should be avoided. Use TLS.
## Ciphers
Clients give servers a list of ciphers to select from. If the list doesn't
include any ciphers the server wants/can use, the connection handshake
fails.
curl has recently disabled the user of a whole bunch of seriously insecure
ciphers from its default set (slightly depending on SSL backend in use).
You may have to explicitly provide an alternative list of ciphers for curl
to use to allow the server to use a WEAK cipher for you.
Note that these weak ciphers are identified as flawed. For example, this
includes symmetric ciphers with less than 128 bit keys and RC4.
WinSSL in Windows XP is not able to connect to servers that no longer
support the legacy handshakes and algorithms used by those versions, so we
advice against building curl to use WinSSL on really old Windows versions.
References:
https://tools.ietf.org/html/draft-popov-tls-prohibiting-rc4-01
## Allow BEAST
BEAST is the name of a TLS 1.0 attack that surfaced 2011. When adding means
to mitigate this attack, it turned out that some broken servers out there in
the wild didn't work properly with the BEAST mitigation in place.
To make such broken servers work, the --ssl-allow-beast option was
introduced. Exactly as it sounds, it re-introduces the BEAST vulnerability
but on the other hand it allows curl to connect to that kind of strange
servers.
## Disabling certificate revocation checks
Some SSL backends may do certificate revocation checks (CRL, OCSP, etc)
depending on the OS or build configuration. The --ssl-no-revoke option was
introduced in 7.44.0 to disable revocation checking but currently is only
supported for WinSSL (the native Windows SSL library), with an exception in
the case of Windows' Untrusted Publishers blacklist which it seems can't be
bypassed. This option may have broader support to accommodate other SSL
backends in the future.
References:
https://curl.haxx.se/docs/ssl-compared.html

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SSL Certificate Verification
============================
SSL is TLS
----------
SSL is the old name. It is called TLS these days.
Native SSL
----------
If libcurl was built with Schannel or Secure Transport support (the native SSL
libraries included in Windows and Mac OS X), then this does not apply to
you. Scroll down for details on how the OS-native engines handle SSL
certificates. If you're not sure, then run "curl -V" and read the results. If
the version string says "WinSSL" in it, then it was built with Schannel
support.
It is about trust
-----------------
This system is about trust. In your local CA certificate store you have certs
from *trusted* Certificate Authorities that you then can use to verify that the
server certificates you see are valid. They're signed by one of the CAs you
trust.
Which CAs do you trust? You can decide to trust the same set of companies your
operating system trusts, or the set one of the known browsers trust. That's
basically trust via someone else you trust. You should just be aware that
modern operating systems and browsers are setup to trust *hundreds* of
companies and recent years several such CAs have been found untrustworthy.
Certificate Verification
------------------------
libcurl performs peer SSL certificate verification by default. This is done
by using a CA certificate store that the SSL library can use to make sure the
peer's server certificate is valid.
If you communicate with HTTPS, FTPS or other TLS-using servers using
certificates that are signed by CAs present in the store, you can be sure
that the remote server really is the one it claims to be.
If the remote server uses a self-signed certificate, if you don't install a CA
cert store, if the server uses a certificate signed by a CA that isn't
included in the store you use or if the remote host is an impostor
impersonating your favorite site, and you want to transfer files from this
server, do one of the following:
1. Tell libcurl to *not* verify the peer. With libcurl you disable this with
`curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE);`
With the curl command line tool, you disable this with -k/--insecure.
2. Get a CA certificate that can verify the remote server and use the proper
option to point out this CA cert for verification when connecting. For
libcurl hackers: `curl_easy_setopt(curl, CURLOPT_CAPATH, capath);`
With the curl command line tool: --cacert [file]
3. Add the CA cert for your server to the existing default CA certificate
store. The default CA certificate store can changed at compile time with the
following configure options:
--with-ca-bundle=FILE: use the specified file as CA certificate store. CA
certificates need to be concatenated in PEM format into this file.
--with-ca-path=PATH: use the specified path as CA certificate store. CA
certificates need to be stored as individual PEM files in this directory.
You may need to run c_rehash after adding files there.
If neither of the two options is specified, configure will try to auto-detect
a setting. It's also possible to explicitly not hardcode any default store
but rely on the built in default the crypto library may provide instead.
You can achieve that by passing both --without-ca-bundle and
--without-ca-path to the configure script.
If you use Internet Explorer, this is one way to get extract the CA cert
for a particular server:
- View the certificate by double-clicking the padlock
- Find out where the CA certificate is kept (Certificate>
Authority Information Access>URL)
- Get a copy of the crt file using curl
- Convert it from crt to PEM using the openssl tool:
openssl x509 -inform DES -in yourdownloaded.crt \
-out outcert.pem -text
- Add the 'outcert.pem' to the CA certificate store or use it stand-alone
as described below.
If you use the 'openssl' tool, this is one way to get extract the CA cert
for a particular server:
- `openssl s_client -connect xxxxx.com:443 |tee logfile`
- type "QUIT", followed by the "ENTER" key
- The certificate will have "BEGIN CERTIFICATE" and "END CERTIFICATE"
markers.
- If you want to see the data in the certificate, you can do: "openssl
x509 -inform PEM -in certfile -text -out certdata" where certfile is
the cert you extracted from logfile. Look in certdata.
- If you want to trust the certificate, you can add it to your CA
certificate store or use it stand-alone as described. Just remember that
the security is no better than the way you obtained the certificate.
4. If you're using the curl command line tool, you can specify your own CA
cert path by setting the environment variable `CURL_CA_BUNDLE` to the path
of your choice.
If you're using the curl command line tool on Windows, curl will search
for a CA cert file named "curl-ca-bundle.crt" in these directories and in
this order:
1. application's directory
2. current working directory
3. Windows System directory (e.g. C:\windows\system32)
4. Windows Directory (e.g. C:\windows)
5. all directories along %PATH%
5. Get a better/different/newer CA cert bundle! One option is to extract the
one a recent Firefox browser uses by running 'make ca-bundle' in the curl
build tree root, or possibly download a version that was generated this
way for you: [CA Extract](https://curl.haxx.se/docs/caextract.html)
Neglecting to use one of the above methods when dealing with a server using a
certificate that isn't signed by one of the certificates in the installed CA
certificate store, will cause SSL to report an error ("certificate verify
failed") during the handshake and SSL will then refuse further communication
with that server.
Certificate Verification with NSS
---------------------------------
If libcurl was built with NSS support, then depending on the OS distribution,
it is probably required to take some additional steps to use the system-wide
CA cert db. RedHat ships with an additional module, libnsspem.so, which
enables NSS to read the OpenSSL PEM CA bundle. On openSUSE you can install
p11-kit-nss-trust which makes NSS use the system wide CA certificate store. NSS
also has a new [database format](https://wiki.mozilla.org/NSS_Shared_DB).
Starting with version 7.19.7, libcurl automatically adds the 'sql:' prefix to
the certdb directory (either the hardcoded default /etc/pki/nssdb or the
directory configured with SSL_DIR environment variable). To check which certdb
format your distribution provides, examine the default certdb location:
/etc/pki/nssdb; the new certdb format can be identified by the filenames
cert9.db, key4.db, pkcs11.txt; filenames of older versions are cert8.db,
key3.db, secmod.db.
Certificate Verification with Schannel and Secure Transport
-----------------------------------------------------------
If libcurl was built with Schannel (Microsoft's native TLS engine) or Secure
Transport (Apple's native TLS engine) support, then libcurl will still perform
peer certificate verification, but instead of using a CA cert bundle, it will
use the certificates that are built into the OS. These are the same
certificates that appear in the Internet Options control panel (under Windows)
or Keychain Access application (under OS X). Any custom security rules for
certificates will be honored.
Schannel will run CRL checks on certificates unless peer verification is
disabled. Secure Transport on iOS will run OCSP checks on certificates unless
peer verification is disabled. Secure Transport on OS X will run either OCSP
or CRL checks on certificates if those features are enabled, and this behavior
can be adjusted in the preferences of Keychain Access.

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The Art Of Scripting HTTP Requests Using Curl
1. HTTP Scripting
1.1 Background
1.2 The HTTP Protocol
1.3 See the Protocol
1.4 See the Timing
1.5 See the Response
2. URL
2.1 Spec
2.2 Host
2.3 Port number
2.4 User name and password
2.5 Path part
3. Fetch a page
3.1 GET
3.2 HEAD
3.3 Multiple URLs in a single command line
3.4 Multiple HTTP methods in a single command line
4. HTML forms
4.1 Forms explained
4.2 GET
4.3 POST
4.4 File Upload POST
4.5 Hidden Fields
4.6 Figure Out What A POST Looks Like
5. HTTP upload
5.1 PUT
6. HTTP Authentication
6.1 Basic Authentication
6.2 Other Authentication
6.3 Proxy Authentication
6.4 Hiding credentials
7. More HTTP Headers
7.1 Referer
7.2 User Agent
8. Redirects
8.1 Location header
8.2 Other redirects
9. Cookies
9.1 Cookie Basics
9.2 Cookie options
10. HTTPS
10.1 HTTPS is HTTP secure
10.2 Certificates
11. Custom Request Elements
11.1 Modify method and headers
11.2 More on changed methods
12. Web Login
12.1 Some login tricks
13. Debug
13.1 Some debug tricks
14. References
14.1 Standards
14.2 Sites
==============================================================================
1. HTTP Scripting
1.1 Background
This document assumes that you're familiar with HTML and general networking.
The increasing amount of applications moving to the web has made "HTTP
Scripting" more frequently requested and wanted. To be able to automatically
extract information from the web, to fake users, to post or upload data to
web servers are all important tasks today.
Curl is a command line tool for doing all sorts of URL manipulations and
transfers, but this particular document will focus on how to use it when
doing HTTP requests for fun and profit. I'll assume that you know how to
invoke 'curl --help' or 'curl --manual' to get basic information about it.
Curl is not written to do everything for you. It makes the requests, it gets
the data, it sends data and it retrieves the information. You probably need
to glue everything together using some kind of script language or repeated
manual invokes.
1.2 The HTTP Protocol
HTTP is the protocol used to fetch data from web servers. It is a very simple
protocol that is built upon TCP/IP. The protocol also allows information to
get sent to the server from the client using a few different methods, as will
be shown here.
HTTP is plain ASCII text lines being sent by the client to a server to
request a particular action, and then the server replies a few text lines
before the actual requested content is sent to the client.
The client, curl, sends a HTTP request. The request contains a method (like
GET, POST, HEAD etc), a number of request headers and sometimes a request
body. The HTTP server responds with a status line (indicating if things went
well), response headers and most often also a response body. The "body" part
is the plain data you requested, like the actual HTML or the image etc.
1.3 See the Protocol
Using curl's option --verbose (-v as a short option) will display what kind
of commands curl sends to the server, as well as a few other informational
texts.
--verbose is the single most useful option when it comes to debug or even
understand the curl<->server interaction.
Sometimes even --verbose is not enough. Then --trace and --trace-ascii offer
even more details as they show EVERYTHING curl sends and receives. Use it
like this:
curl --trace-ascii debugdump.txt http://www.example.com/
1.4 See the Timing
Many times you may wonder what exactly is taking all the time, or you just
want to know the amount of milliseconds between two points in a
transfer. For those, and other similar situations, the --trace-time option
is what you need. It'll prepend the time to each trace output line:
curl --trace-ascii d.txt --trace-time http://example.com/
1.5 See the Response
By default curl sends the response to stdout. You need to redirect it
somewhere to avoid that, most often that is done with -o or -O.
2. URL
2.1 Spec
The Uniform Resource Locator format is how you specify the address of a
particular resource on the Internet. You know these, you've seen URLs like
https://curl.haxx.se or https://yourbank.com a million times. RFC 3986 is the
canonical spec. And yeah, the formal name is not URL, it is URI.
2.2 Host
The host name is usually resolved using DNS or your /etc/hosts file to an IP
address and that's what curl will communicate with. Alternatively you specify
the IP address directly in the URL instead of a name.
For development and other trying out situation, you can point out a different
IP address for a host name than what would otherwise be used, by using curl's
--resolve option:
curl --resolve www.example.org:80:127.0.0.1 http://www.example.org/
2.3 Port number
Each protocol curl supports operate on a default port number, be it over TCP
or in some cases UDP. Normally you don't have to take that into
consideration, but at times you run test servers on other ports or
similar. Then you can specify the port number in the URL with a colon and a
number immediately following the host name. Like when doing HTTP to port
1234:
curl http://www.example.org:1234/
The port number you specify in the URL is the number that the server uses to
offer its services. Sometimes you may use a local proxy, and then you may
need to specify that proxy's port number separate on what curl needs to
connect to locally. Like when using a HTTP proxy on port 4321:
curl --proxy http://proxy.example.org:4321 http://remote.example.org/
2.4 User name and password
Some services are setup to require HTTP authentication and then you need to
provide name and password which then is transferred to the remote site in
various ways depending on the exact authentication protocol used.
You can opt to either insert the user and password in the URL or you can
provide them separately:
curl http://user:password@example.org/
or
curl -u user:password http://example.org/
You need to pay attention that this kind of HTTP authentication is not what
is usually done and requested by user-oriented web sites these days. They
tend to use forms and cookies instead.
2.5 Path part
The path part is just sent off to the server to request that it sends back
the associated response. The path is what is to the right side of the slash
that follows the host name and possibly port number.
3. Fetch a page
3.1 GET
The simplest and most common request/operation made using HTTP is to get a
URL. The URL could itself refer to a web page, an image or a file. The client
issues a GET request to the server and receives the document it asked for.
If you issue the command line
curl https://curl.haxx.se
you get a web page returned in your terminal window. The entire HTML document
that that URL holds.
All HTTP replies contain a set of response headers that are normally hidden,
use curl's --include (-i) option to display them as well as the rest of the
document.
3.2 HEAD
You can ask the remote server for ONLY the headers by using the --head (-I)
option which will make curl issue a HEAD request. In some special cases
servers deny the HEAD method while others still work, which is a particular
kind of annoyance.
The HEAD method is defined and made so that the server returns the headers
exactly the way it would do for a GET, but without a body. It means that you
may see a Content-Length: in the response headers, but there must not be an
actual body in the HEAD response.
3.3 Multiple URLs in a single command line
A single curl command line may involve one or many URLs. The most common case
is probably to just use one, but you can specify any amount of URLs. Yes
any. No limits. You'll then get requests repeated over and over for all the
given URLs.
Example, send two GETs:
curl http://url1.example.com http://url2.example.com
If you use --data to POST to the URL, using multiple URLs means that you send
that same POST to all the given URLs.
Example, send two POSTs:
curl --data name=curl http://url1.example.com http://url2.example.com
3.4 Multiple HTTP methods in a single command line
Sometimes you need to operate on several URLs in a single command line and do
different HTTP methods on each. For this, you'll enjoy the --next option. It
is basically a separator that separates a bunch of options from the next. All
the URLs before --next will get the same method and will get all the POST
data merged into one.
When curl reaches the --next on the command line, it'll sort of reset the
method and the POST data and allow a new set.
Perhaps this is best shown with a few examples. To send first a HEAD and then
a GET:
curl -I http://example.com --next http://example.com
To first send a POST and then a GET:
curl -d score=10 http://example.com/post.cgi --next http://example.com/results.html
4. HTML forms
4.1 Forms explained
Forms are the general way a web site can present a HTML page with fields for
the user to enter data in, and then press some kind of 'OK' or 'submit'
button to get that data sent to the server. The server then typically uses
the posted data to decide how to act. Like using the entered words to search
in a database, or to add the info in a bug track system, display the entered
address on a map or using the info as a login-prompt verifying that the user
is allowed to see what it is about to see.
Of course there has to be some kind of program in the server end to receive
the data you send. You cannot just invent something out of the air.
4.2 GET
A GET-form uses the method GET, as specified in HTML like:
<form method="GET" action="junk.cgi">
<input type=text name="birthyear">
<input type=submit name=press value="OK">
</form>
In your favorite browser, this form will appear with a text box to fill in
and a press-button labeled "OK". If you fill in '1905' and press the OK
button, your browser will then create a new URL to get for you. The URL will
get "junk.cgi?birthyear=1905&press=OK" appended to the path part of the
previous URL.
If the original form was seen on the page "www.hotmail.com/when/birth.html",
the second page you'll get will become
"www.hotmail.com/when/junk.cgi?birthyear=1905&press=OK".
Most search engines work this way.
To make curl do the GET form post for you, just enter the expected created
URL:
curl "http://www.hotmail.com/when/junk.cgi?birthyear=1905&press=OK"
4.3 POST
The GET method makes all input field names get displayed in the URL field of
your browser. That's generally a good thing when you want to be able to
bookmark that page with your given data, but it is an obvious disadvantage
if you entered secret information in one of the fields or if there are a
large amount of fields creating a very long and unreadable URL.
The HTTP protocol then offers the POST method. This way the client sends the
data separated from the URL and thus you won't see any of it in the URL
address field.
The form would look very similar to the previous one:
<form method="POST" action="junk.cgi">
<input type=text name="birthyear">
<input type=submit name=press value=" OK ">
</form>
And to use curl to post this form with the same data filled in as before, we
could do it like:
curl --data "birthyear=1905&press=%20OK%20" \
http://www.example.com/when.cgi
This kind of POST will use the Content-Type
application/x-www-form-urlencoded and is the most widely used POST kind.
The data you send to the server MUST already be properly encoded, curl will
not do that for you. For example, if you want the data to contain a space,
you need to replace that space with %20 etc. Failing to comply with this
will most likely cause your data to be received wrongly and messed up.
Recent curl versions can in fact url-encode POST data for you, like this:
curl --data-urlencode "name=I am Daniel" http://www.example.com
If you repeat --data several times on the command line, curl will
concatenate all the given data pieces - and put a '&' symbol between each
data segment.
4.4 File Upload POST
Back in late 1995 they defined an additional way to post data over HTTP. It
is documented in the RFC 1867, why this method sometimes is referred to as
RFC1867-posting.
This method is mainly designed to better support file uploads. A form that
allows a user to upload a file could be written like this in HTML:
<form method="POST" enctype='multipart/form-data' action="upload.cgi">
<input type=file name=upload>
<input type=submit name=press value="OK">
</form>
This clearly shows that the Content-Type about to be sent is
multipart/form-data.
To post to a form like this with curl, you enter a command line like:
curl --form upload=@localfilename --form press=OK [URL]
4.5 Hidden Fields
A very common way for HTML based application to pass state information
between pages is to add hidden fields to the forms. Hidden fields are
already filled in, they aren't displayed to the user and they get passed
along just as all the other fields.
A similar example form with one visible field, one hidden field and one
submit button could look like:
<form method="POST" action="foobar.cgi">
<input type=text name="birthyear">
<input type=hidden name="person" value="daniel">
<input type=submit name="press" value="OK">
</form>
To post this with curl, you won't have to think about if the fields are
hidden or not. To curl they're all the same:
curl --data "birthyear=1905&press=OK&person=daniel" [URL]
4.6 Figure Out What A POST Looks Like
When you're about fill in a form and send to a server by using curl instead
of a browser, you're of course very interested in sending a POST exactly the
way your browser does.
An easy way to get to see this, is to save the HTML page with the form on
your local disk, modify the 'method' to a GET, and press the submit button
(you could also change the action URL if you want to).
You will then clearly see the data get appended to the URL, separated with a
'?'-letter as GET forms are supposed to.
5. HTTP upload
5.1 PUT
The perhaps best way to upload data to a HTTP server is to use PUT. Then
again, this of course requires that someone put a program or script on the
server end that knows how to receive a HTTP PUT stream.
Put a file to a HTTP server with curl:
curl --upload-file uploadfile http://www.example.com/receive.cgi
6. HTTP Authentication
6.1 Basic Authentication
HTTP Authentication is the ability to tell the server your username and
password so that it can verify that you're allowed to do the request you're
doing. The Basic authentication used in HTTP (which is the type curl uses by
default) is *plain* *text* based, which means it sends username and password
only slightly obfuscated, but still fully readable by anyone that sniffs on
the network between you and the remote server.
To tell curl to use a user and password for authentication:
curl --user name:password http://www.example.com
6.2 Other Authentication
The site might require a different authentication method (check the headers
returned by the server), and then --ntlm, --digest, --negotiate or even
--anyauth might be options that suit you.
6.3 Proxy Authentication
Sometimes your HTTP access is only available through the use of a HTTP
proxy. This seems to be especially common at various companies. A HTTP proxy
may require its own user and password to allow the client to get through to
the Internet. To specify those with curl, run something like:
curl --proxy-user proxyuser:proxypassword curl.haxx.se
If your proxy requires the authentication to be done using the NTLM method,
use --proxy-ntlm, if it requires Digest use --proxy-digest.
If you use any one these user+password options but leave out the password
part, curl will prompt for the password interactively.
6.4 Hiding credentials
Do note that when a program is run, its parameters might be possible to see
when listing the running processes of the system. Thus, other users may be
able to watch your passwords if you pass them as plain command line
options. There are ways to circumvent this.
It is worth noting that while this is how HTTP Authentication works, very
many web sites will not use this concept when they provide logins etc. See
the Web Login chapter further below for more details on that.
7. More HTTP Headers
7.1 Referer
A HTTP request may include a 'referer' field (yes it is misspelled), which
can be used to tell from which URL the client got to this particular
resource. Some programs/scripts check the referer field of requests to verify
that this wasn't arriving from an external site or an unknown page. While
this is a stupid way to check something so easily forged, many scripts still
do it. Using curl, you can put anything you want in the referer-field and
thus more easily be able to fool the server into serving your request.
Use curl to set the referer field with:
curl --referer http://www.example.come http://www.example.com
7.2 User Agent
Very similar to the referer field, all HTTP requests may set the User-Agent
field. It names what user agent (client) that is being used. Many
applications use this information to decide how to display pages. Silly web
programmers try to make different pages for users of different browsers to
make them look the best possible for their particular browsers. They usually
also do different kinds of javascript, vbscript etc.
At times, you will see that getting a page with curl will not return the same
page that you see when getting the page with your browser. Then you know it
is time to set the User Agent field to fool the server into thinking you're
one of those browsers.
To make curl look like Internet Explorer 5 on a Windows 2000 box:
curl --user-agent "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" [URL]
Or why not look like you're using Netscape 4.73 on an old Linux box:
curl --user-agent "Mozilla/4.73 [en] (X11; U; Linux 2.2.15 i686)" [URL]
8. Redirects
8.1 Location header
When a resource is requested from a server, the reply from the server may
include a hint about where the browser should go next to find this page, or a
new page keeping newly generated output. The header that tells the browser
to redirect is Location:.
Curl does not follow Location: headers by default, but will simply display
such pages in the same manner it display all HTTP replies. It does however
feature an option that will make it attempt to follow the Location: pointers.
To tell curl to follow a Location:
curl --location http://www.example.com
If you use curl to POST to a site that immediately redirects you to another
page, you can safely use --location (-L) and --data/--form together. Curl will
only use POST in the first request, and then revert to GET in the following
operations.
8.2 Other redirects
Browser typically support at least two other ways of redirects that curl
doesn't: first the html may contain a meta refresh tag that asks the browser
to load a specific URL after a set number of seconds, or it may use
javascript to do it.
9. Cookies
9.1 Cookie Basics
The way the web browsers do "client side state control" is by using
cookies. Cookies are just names with associated contents. The cookies are
sent to the client by the server. The server tells the client for what path
and host name it wants the cookie sent back, and it also sends an expiration
date and a few more properties.
When a client communicates with a server with a name and path as previously
specified in a received cookie, the client sends back the cookies and their
contents to the server, unless of course they are expired.
Many applications and servers use this method to connect a series of requests
into a single logical session. To be able to use curl in such occasions, we
must be able to record and send back cookies the way the web application
expects them. The same way browsers deal with them.
9.2 Cookie options
The simplest way to send a few cookies to the server when getting a page with
curl is to add them on the command line like:
curl --cookie "name=Daniel" http://www.example.com
Cookies are sent as common HTTP headers. This is practical as it allows curl
to record cookies simply by recording headers. Record cookies with curl by
using the --dump-header (-D) option like:
curl --dump-header headers_and_cookies http://www.example.com
(Take note that the --cookie-jar option described below is a better way to
store cookies.)
Curl has a full blown cookie parsing engine built-in that comes to use if you
want to reconnect to a server and use cookies that were stored from a
previous connection (or hand-crafted manually to fool the server into
believing you had a previous connection). To use previously stored cookies,
you run curl like:
curl --cookie stored_cookies_in_file http://www.example.com
Curl's "cookie engine" gets enabled when you use the --cookie option. If you
only want curl to understand received cookies, use --cookie with a file that
doesn't exist. Example, if you want to let curl understand cookies from a
page and follow a location (and thus possibly send back cookies it received),
you can invoke it like:
curl --cookie nada --location http://www.example.com
Curl has the ability to read and write cookie files that use the same file
format that Netscape and Mozilla once used. It is a convenient way to share
cookies between scripts or invokes. The --cookie (-b) switch automatically
detects if a given file is such a cookie file and parses it, and by using the
--cookie-jar (-c) option you'll make curl write a new cookie file at the end
of an operation:
curl --cookie cookies.txt --cookie-jar newcookies.txt \
http://www.example.com
10. HTTPS
10.1 HTTPS is HTTP secure
There are a few ways to do secure HTTP transfers. The by far most common
protocol for doing this is what is generally known as HTTPS, HTTP over
SSL. SSL encrypts all the data that is sent and received over the network and
thus makes it harder for attackers to spy on sensitive information.
SSL (or TLS as the latest version of the standard is called) offers a
truckload of advanced features to allow all those encryptions and key
infrastructure mechanisms encrypted HTTP requires.
Curl supports encrypted fetches when built to use a TLS library and it can be
built to use one out of a fairly large set of libraries - "curl -V" will show
which one your curl was built to use (if any!). To get a page from a HTTPS
server, simply run curl like:
curl https://secure.example.com
10.2 Certificates
In the HTTPS world, you use certificates to validate that you are the one
you claim to be, as an addition to normal passwords. Curl supports client-
side certificates. All certificates are locked with a pass phrase, which you
need to enter before the certificate can be used by curl. The pass phrase
can be specified on the command line or if not, entered interactively when
curl queries for it. Use a certificate with curl on a HTTPS server like:
curl --cert mycert.pem https://secure.example.com
curl also tries to verify that the server is who it claims to be, by
verifying the server's certificate against a locally stored CA cert
bundle. Failing the verification will cause curl to deny the connection. You
must then use --insecure (-k) in case you want to tell curl to ignore that
the server can't be verified.
More about server certificate verification and ca cert bundles can be read
in the SSLCERTS document, available online here:
https://curl.haxx.se/docs/sslcerts.html
At times you may end up with your own CA cert store and then you can tell
curl to use that to verify the server's certificate:
curl --cacert ca-bundle.pem https://example.com/
11. Custom Request Elements
11.1 Modify method and headers
Doing fancy stuff, you may need to add or change elements of a single curl
request.
For example, you can change the POST request to a PROPFIND and send the data
as "Content-Type: text/xml" (instead of the default Content-Type) like this:
curl --data "<xml>" --header "Content-Type: text/xml" \
--request PROPFIND url.com
You can delete a default header by providing one without content. Like you
can ruin the request by chopping off the Host: header:
curl --header "Host:" http://www.example.com
You can add headers the same way. Your server may want a "Destination:"
header, and you can add it:
curl --header "Destination: http://nowhere" http://example.com
11.2 More on changed methods
It should be noted that curl selects which methods to use on its own
depending on what action to ask for. -d will do POST, -I will do HEAD and so
on. If you use the --request / -X option you can change the method keyword
curl selects, but you will not modify curl's behavior. This means that if you
for example use -d "data" to do a POST, you can modify the method to a
PROPFIND with -X and curl will still think it sends a POST. You can change
the normal GET to a POST method by simply adding -X POST in a command line
like:
curl -X POST http://example.org/
... but curl will still think and act as if it sent a GET so it won't send any
request body etc.
12. Web Login
12.1 Some login tricks
While not strictly just HTTP related, it still cause a lot of people problems
so here's the executive run-down of how the vast majority of all login forms
work and how to login to them using curl.
It can also be noted that to do this properly in an automated fashion, you
will most certainly need to script things and do multiple curl invokes etc.
First, servers mostly use cookies to track the logged-in status of the
client, so you will need to capture the cookies you receive in the
responses. Then, many sites also set a special cookie on the login page (to
make sure you got there through their login page) so you should make a habit
of first getting the login-form page to capture the cookies set there.
Some web-based login systems features various amounts of javascript, and
sometimes they use such code to set or modify cookie contents. Possibly they
do that to prevent programmed logins, like this manual describes how to...
Anyway, if reading the code isn't enough to let you repeat the behavior
manually, capturing the HTTP requests done by your browsers and analyzing the
sent cookies is usually a working method to work out how to shortcut the
javascript need.
In the actual <form> tag for the login, lots of sites fill-in random/session
or otherwise secretly generated hidden tags and you may need to first capture
the HTML code for the login form and extract all the hidden fields to be able
to do a proper login POST. Remember that the contents need to be URL encoded
when sent in a normal POST.
13. Debug
13.1 Some debug tricks
Many times when you run curl on a site, you'll notice that the site doesn't
seem to respond the same way to your curl requests as it does to your
browser's.
Then you need to start making your curl requests more similar to your
browser's requests:
* Use the --trace-ascii option to store fully detailed logs of the requests
for easier analyzing and better understanding
* Make sure you check for and use cookies when needed (both reading with
--cookie and writing with --cookie-jar)
* Set user-agent to one like a recent popular browser does
* Set referer like it is set by the browser
* If you use POST, make sure you send all the fields and in the same order as
the browser does it.
A very good helper to make sure you do this right, is the LiveHTTPHeader tool
that lets you view all headers you send and receive with Mozilla/Firefox
(even when using HTTPS). Chrome features similar functionality out of the box
among the developer's tools.
A more raw approach is to capture the HTTP traffic on the network with tools
such as ethereal or tcpdump and check what headers that were sent and
received by the browser. (HTTPS makes this technique inefficient.)
14. References
14.1 Standards
RFC 7230 is a must to read if you want in-depth understanding of the HTTP
protocol
RFC 3986 explains the URL syntax
RFC 1867 defines the HTTP post upload format
RFC 6525 defines how HTTP cookies work
14.2 Sites
https://curl.haxx.se is the home of the curl project

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Version Numbers and Releases
============================
Curl is not only curl. Curl is also libcurl. They're actually individually
versioned, but they mostly follow each other rather closely.
The version numbering is always built up using the same system:
X.Y.Z
- X is main version number
- Y is release number
- Z is patch number
## Bumping numbers
One of these numbers will get bumped in each new release. The numbers to the
right of a bumped number will be reset to zero. If Z is zero, it may not be
included in the version number.
The main version number will get bumped when *really* big, world colliding
changes are made. The release number is bumped when changes are performed or
things/features are added. The patch number is bumped when the changes are
mere bugfixes.
It means that after release 1.2.3, we can release 2.0 if something really big
has been made, 1.3 if not that big changes were made or 1.2.4 if mostly bugs
were fixed.
Bumping, as in increasing the number with 1, is unconditionally only
affecting one of the numbers (except the ones to the right of it, that may be
set to zero). 1 becomes 2, 3 becomes 4, 9 becomes 10, 88 becomes 89 and 99
becomes 100. So, after 1.2.9 comes 1.2.10. After 3.99.3, 3.100 might come.
All original curl source release archives are named according to the libcurl
version (not according to the curl client version that, as said before, might
differ).
As a service to any application that might want to support new libcurl
features while still being able to build with older versions, all releases
have the libcurl version stored in the curl/curlver.h file using a static
numbering scheme that can be used for comparison. The version number is
defined as:
#define LIBCURL_VERSION_NUM 0xXXYYZZ
Where XX, YY and ZZ are the main version, release and patch numbers in
hexadecimal. All three number fields are always represented using two digits
(eight bits each). 1.2 would appear as "0x010200" while version 9.11.7
appears as "0x090b07".
This 6-digit hexadecimal number is always a greater number in a more recent
release. It makes comparisons with greater than and less than work.
This number is also available as three separate defines:
`LIBCURL_VERSION_MAJOR`, `LIBCURL_VERSION_MINOR` and `LIBCURL_VERSION_PATCH`.

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# curl man page generator
This is the curl man page generator. It generates a single nroff man page
output from the set of sources files in this directory.
There is one source file for each supported command line option. The format is
described below.
## Option files
Each command line option is described in a file named `<long name>.d`, where
option name is written without any prefixing dashes. Like the file name for
the -v, --verbose option is named `verbose.d`.
Each file has a set of meta-data and a body of text.
### Meta-data
Short: (single letter, without dash)
Long: (long form name, without dashes)
Arg: (the argument the option takes)
Magic: (description of "magic" options)
Tags: (space separated list)
Protocols: (space separated list for which protocols this option works)
Added: (version number in which this was added)
Mutexed: (space separated list of options this overrides)
Requires: (space separated list of features this option requires)
See-also: (space separated list of related options)
Help: (short text for the --help output for this option)
--- (end of meta-data)
### Body
The body of the description. Only refer to options with their long form option
version, like --verbose. The output generator will replace such with the
correct markup that shows both short and long version.
## Header
`page-header` is the nroff formatted file that will be output before the
generated options output for the master man page.
## Generate
`./gen.pl mainpage`
This command outputs a single huge nroff file, meant to become `curl.1`. The
full curl man page.
`./gen.pl listhelp`
Generates a full `curl --help` output for all known command line options.

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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
AUTOMAKE_OPTIONS = foreign no-dependencies
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dns-ipv6-addr.d dns-servers.d dump-header.d egd-file.d engine.d \
environment.d expect100-timeout.d fail.d fail-early.d false-start.d \
form.d form-string.d ftp-account.d ftp-alternative-to-user.d \
ftp-create-dirs.d ftp-method.d ftp-pasv.d ftp-port.d ftp-pret.d \
ftp-skip-pasv-ip.d ftp-ssl-ccc.d ftp-ssl-ccc-mode.d ftp-ssl-control.d \
get.d globoff.d head.d header.d help.d hostpubmd5.d http1.0.d \
http1.1.d http2.d http2-prior-knowledge.d ignore-content-length.d \
include.d insecure.d interface.d ipv4.d ipv6.d junk-session-cookies.d \
keepalive-time.d key.d key-type.d krb.d libcurl.d limit-rate.d \
list-only.d local-port.d location.d location-trusted.d \
login-options.d mail-auth.d mail-from.d mail-rcpt.d manual.d \
max-filesize.d max-redirs.d max-time.d metalink.d negotiate.d netrc.d \
netrc-file.d netrc-optional.d next.d no-alpn.d no-buffer.d \
no-keepalive.d no-npn.d noproxy.d no-sessionid.d ntlm.d ntlm-wb.d \
oauth2-bearer.d output.d pass.d path-as-is.d pinnedpubkey.d post301.d \
post302.d post303.d preproxy.d progress-bar.d proto.d proto-default.d \
proto-redir.d proxy1.0.d proxy-anyauth.d proxy-basic.d proxy-cacert.d \
proxy-capath.d proxy-cert.d proxy-cert-type.d proxy-ciphers.d \
proxy-crlfile.d proxy.d proxy-digest.d proxy-header.d \
proxy-insecure.d proxy-key.d proxy-key-type.d proxy-negotiate.d \
proxy-ntlm.d proxy-pass.d proxy-service-name.d \
proxy-ssl-allow-beast.d proxy-tlsauthtype.d proxy-tlspassword.d \
proxy-tlsuser.d proxy-tlsv1.d proxytunnel.d proxy-user.d pubkey.d \
quote.d random-file.d range.d raw.d referer.d remote-header-name.d \
remote-name-all.d remote-name.d remote-time.d request.d resolve.d \
retry-connrefused.d retry.d retry-delay.d retry-max-time.d sasl-ir.d \
service-name.d show-error.d silent.d socks4a.d socks4.d socks5.d \
socks5-gssapi-nec.d socks5-gssapi-service.d socks5-hostname.d \
speed-limit.d speed-time.d ssl-allow-beast.d ssl.d ssl-no-revoke.d \
ssl-reqd.d sslv2.d sslv3.d stderr.d tcp-fastopen.d tcp-nodelay.d \
telnet-option.d tftp-blksize.d tftp-no-options.d time-cond.d \
tlsauthtype.d tlspassword.d tlsuser.d tlsv1.0.d tlsv1.1.d tlsv1.2.d \
tlsv1.3.d tlsv1.d trace-ascii.d trace.d trace-time.d tr-encoding.d \
unix-socket.d upload-file.d url.d use-ascii.d user-agent.d user.d \
verbose.d version.d write-out.d xattr.d
EXTRA_DIST = $(DPAGES) MANPAGE.md gen.pl page-footer page-header

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# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
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# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

367
proxy_c/third-lib/libcurl/docs/cmdline-opts/gen.pl
View File

@@ -1,367 +0,0 @@
#!/usr/bin/perl
my $some_dir=".";
opendir(my $dh, $some_dir) || die "Can't opendir $some_dir: $!";
my @s = grep { /\.d$/ && -f "$some_dir/$_" } readdir($dh);
closedir $dh;
my %optshort;
my %optlong;
my %helplong;
my %arglong;
my %redirlong;
my %protolong;
# get the long name version, return the man page string
sub manpageify {
my ($k)=@_;
my $l;
if($optlong{$k} ne "") {
# both short + long
$l = "\\fI-".$optlong{$k}.", --$k\\fP";
}
else {
# only long
$l = "\\fI--$k\\fP";
}
return $l;
}
sub printdesc {
my @desc = @_;
for my $d (@desc) {
# skip lines starting with space (examples)
if($d =~ /^[^ ]/) {
for my $k (keys %optlong) {
my $l = manpageify($k);
$d =~ s/--$k([^a-z0-9_-])/$l$1/;
}
}
print $d;
}
}
sub seealso {
my($standalone, $data)=@_;
if($standalone) {
return sprintf
".SH \"SEE ALSO\"\n$data\n";
}
else {
return "See also $data. ";
}
}
sub overrides {
my ($standalone, $data)=@_;
if($standalone) {
return ".SH \"OVERRIDES\"\n$data\n";
}
else {
return $data;
}
}
sub protocols {
my ($standalone, $data)=@_;
if($standalone) {
return ".SH \"PROTOCOLS\"\n$data\n";
}
else {
return "($data) ";
}
}
sub added {
my ($standalone, $data)=@_;
if($standalone) {
return ".SH \"ADDED\"\nAdded in curl version $data\n";
}
else {
return "Added in $data. ";
}
}
sub single {
my ($f, $standalone)=@_;
open(F, "<$f") ||
return 1;
my $short;
my $long;
my $tags;
my $added;
my $protocols;
my $arg;
my $mutexed;
my $requires;
my $seealso;
my $magic; # cmdline special option
while(<F>) {
if(/^Short: *(.)/i) {
$short=$1;
}
elsif(/^Long: *(.*)/i) {
$long=$1;
}
elsif(/^Added: *(.*)/i) {
$added=$1;
}
elsif(/^Tags: *(.*)/i) {
$tags=$1;
}
elsif(/^Arg: *(.*)/i) {
$arg=$1;
}
elsif(/^Magic: *(.*)/i) {
$magic=$1;
}
elsif(/^Mutexed: *(.*)/i) {
$mutexed=$1;
}
elsif(/^Protocols: *(.*)/i) {
$protocols=$1;
}
elsif(/^See-also: *(.*)/i) {
$seealso=$1;
}
elsif(/^Requires: *(.*)/i) {
$requires=$1;
}
elsif(/^Help: *(.*)/i) {
;
}
elsif(/^---/) {
if(!$long) {
print STDERR "WARN: no 'Long:' in $f\n";
}
last;
}
else {
chomp;
print STDERR "WARN: unrecognized line in $f, ignoring:\n:'$_';"
}
}
my @dest;
while(<F>) {
push @desc, $_;
}
close(F);
my $opt;
if(defined($short) && $long) {
$opt = "-$short, --$long";
}
elsif($short && !$long) {
$opt = "-$short";
}
elsif($long && !$short) {
$opt = "--$long";
}
if($arg) {
$opt .= " $arg";
}
if($standalone) {
print ".TH curl 1 \"30 Nov 2016\" \"curl 7.52.0\" \"curl manual\"\n";
print ".SH OPTION\n";
print "curl $opt\n";
}
else {
print ".IP \"$opt\"\n";
}
if($protocols) {
print protocols($standalone, $protocols);
}
if($standalone) {
print ".SH DESCRIPTION\n";
}
printdesc(@desc);
undef @desc;
my @foot;
if($seealso) {
my @m=split(/ /, $seealso);
my $mstr;
for my $k (@m) {
my $l = manpageify($k);
$mstr .= sprintf "%s$l", $mstr?" and ":"";
}
push @foot, seealso($standalone, $mstr);
}
if($requires) {
my $l = manpageify($long);
push @foot, "$l requires that the underlying libcurl".
" was built to support $requires. ";
}
if($mutexed) {
my @m=split(/ /, $mutexed);
my $mstr;
for my $k (@m) {
my $l = manpageify($k);
$mstr .= sprintf "%s$l", $mstr?" and ":"";
}
push @foot, overrides($standalone, "This option overrides $mstr. ");
}
if($added) {
push @foot, added($standalone, $added);
}
if($foot[0]) {
print "\n";
my $f = join("", @foot);
$f =~ s/ +\z//; # remove trailing space
print "$f\n";
}
return 0;
}
sub getshortlong {
my ($f)=@_;
open(F, "<$f");
my $short;
my $long;
my $help;
my $arg;
my $protocols;
while(<F>) {
if(/^Short: (.)/i) {
$short=$1;
}
elsif(/^Long: (.*)/i) {
$long=$1;
}
elsif(/^Help: (.*)/i) {
$help=$1;
}
elsif(/^Arg: (.*)/i) {
$arg=$1;
}
elsif(/^Protocols: (.*)/i) {
$protocols=$1;
}
elsif(/^---/) {
last;
}
}
close(F);
if($short) {
$optshort{$short}=$long;
}
if($long) {
$optlong{$long}=$short;
$helplong{$long}=$help;
$arglong{$long}=$arg;
$protolong{$long}=$protocols;
}
}
sub indexoptions {
foreach my $f (@s) {
getshortlong($f);
}
}
sub header {
my ($f)=@_;
open(F, "<$f");
my @d;
while(<F>) {
push @d, $_;
}
close(F);
printdesc(@d);
}
sub listhelp {
foreach my $f (sort keys %helplong) {
my $long = $f;
my $short = $optlong{$long};
my $opt;
if(defined($short) && $long) {
$opt = "-$short, --$long";
}
elsif($long && !$short) {
$opt = " --$long";
}
my $arg = $arglong{$long};
if($arg) {
$opt .= " $arg";
}
my $line = sprintf " %-19s %s\n", $opt, $helplong{$f};
if(length($line) > 79) {
print STDERR "WARN: the --$long line is too long\n";
}
print $line;
}
}
sub mainpage {
# show the page header
header("page-header");
# output docs for all options
foreach my $f (sort @s) {
single($f, 0);
}
header("page-footer");
}
sub showonly {
my ($f) = @_;
if(single($f, 1)) {
print STDERR "$f: failed\n";
}
}
sub showprotocols {
my %prots;
foreach my $f (keys %optlong) {
my @p = split(/ /, $protolong{$f});
for my $p (@p) {
$prots{$p}++;
}
}
for(sort keys %prots) {
printf "$_ (%d options)\n", $prots{$_};
}
}
sub getargs {
my $f;
do {
$f = shift @ARGV;
if($f eq "mainpage") {
mainpage();
return;
}
elsif($f eq "listhelp") {
listhelp();
return;
}
elsif($f eq "single") {
showonly(shift @ARGV);
return;
}
elsif($f eq "protos") {
showprotocols();
return;
}
} while($f);
print "Usage: gen.pl <mainpage/listhelp/single FILE/protos>\n";
}
#------------------------------------------------------------------------
# learn all existing options
indexoptions();
getargs();

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@@ -1,225 +0,0 @@
.SH FILES
.I ~/.curlrc
.RS
Default config file, see --config for details.
.SH ENVIRONMENT
The environment variables can be specified in lower case or upper case. The
lower case version has precedence. http_proxy is an exception as it is only
available in lower case.
Using an environment variable to set the proxy has the same effect as using
the --proxy option.
.IP "http_proxy [protocol://]<host>[:port]"
Sets the proxy server to use for HTTP.
.IP "HTTPS_PROXY [protocol://]<host>[:port]"
Sets the proxy server to use for HTTPS.
.IP "[url-protocol]_PROXY [protocol://]<host>[:port]"
Sets the proxy server to use for [url-protocol], where the protocol is a
protocol that curl supports and as specified in a URL. FTP, FTPS, POP3, IMAP,
SMTP, LDAP etc.
.IP "ALL_PROXY [protocol://]<host>[:port]"
Sets the proxy server to use if no protocol-specific proxy is set.
.IP "NO_PROXY <comma-separated list of hosts>"
list of host names that shouldn't go through any proxy. If set to a asterisk
\&'*' only, it matches all hosts.
.SH "PROXY PROTOCOL PREFIXES"
Since curl version 7.21.7, the proxy string may be specified with a
protocol:// prefix to specify alternative proxy protocols.
If no protocol is specified in the proxy string or if the string doesn't match
a supported one, the proxy will be treated as an HTTP proxy.
The supported proxy protocol prefixes are as follows:
.IP "socks4://"
Makes it the equivalent of --socks4
.IP "socks4a://"
Makes it the equivalent of --socks4a
.IP "socks5://"
Makes it the equivalent of --socks5
.IP "socks5h://"
Makes it the equivalent of --socks5-hostname
.SH EXIT CODES
There are a bunch of different error codes and their corresponding error
messages that may appear during bad conditions. At the time of this writing,
the exit codes are:
.IP 1
Unsupported protocol. This build of curl has no support for this protocol.
.IP 2
Failed to initialize.
.IP 3
URL malformed. The syntax was not correct.
.IP 4
A feature or option that was needed to perform the desired request was not
enabled or was explicitly disabled at build-time. To make curl able to do
this, you probably need another build of libcurl!
.IP 5
Couldn't resolve proxy. The given proxy host could not be resolved.
.IP 6
Couldn't resolve host. The given remote host was not resolved.
.IP 7
Failed to connect to host.
.IP 8
Weird server reply. The server sent data curl couldn't parse.
.IP 9
FTP access denied. The server denied login or denied access to the particular
resource or directory you wanted to reach. Most often you tried to change to a
directory that doesn't exist on the server.
.IP 11
FTP weird PASS reply. Curl couldn't parse the reply sent to the PASS request.
.IP 13
FTP weird PASV reply, Curl couldn't parse the reply sent to the PASV request.
.IP 14
FTP weird 227 format. Curl couldn't parse the 227-line the server sent.
.IP 15
FTP can't get host. Couldn't resolve the host IP we got in the 227-line.
.IP 17
FTP couldn't set binary. Couldn't change transfer method to binary.
.IP 18
Partial file. Only a part of the file was transferred.
.IP 19
FTP couldn't download/access the given file, the RETR (or similar) command
failed.
.IP 21
FTP quote error. A quote command returned error from the server.
.IP 22
HTTP page not retrieved. The requested url was not found or returned another
error with the HTTP error code being 400 or above. This return code only
appears if --fail is used.
.IP 23
Write error. Curl couldn't write data to a local filesystem or similar.
.IP 25
FTP couldn't STOR file. The server denied the STOR operation, used for FTP
uploading.
.IP 26
Read error. Various reading problems.
.IP 27
Out of memory. A memory allocation request failed.
.IP 28
Operation timeout. The specified time-out period was reached according to the
conditions.
.IP 30
FTP PORT failed. The PORT command failed. Not all FTP servers support the PORT
command, try doing a transfer using PASV instead!
.IP 31
FTP couldn't use REST. The REST command failed. This command is used for
resumed FTP transfers.
.IP 33
HTTP range error. The range "command" didn't work.
.IP 34
HTTP post error. Internal post-request generation error.
.IP 35
SSL connect error. The SSL handshaking failed.
.IP 36
FTP bad download resume. Couldn't continue an earlier aborted download.
.IP 37
FILE couldn't read file. Failed to open the file. Permissions?
.IP 38
LDAP cannot bind. LDAP bind operation failed.
.IP 39
LDAP search failed.
.IP 41
Function not found. A required LDAP function was not found.
.IP 42
Aborted by callback. An application told curl to abort the operation.
.IP 43
Internal error. A function was called with a bad parameter.
.IP 45
Interface error. A specified outgoing interface could not be used.
.IP 47
Too many redirects. When following redirects, curl hit the maximum amount.
.IP 48
Unknown option specified to libcurl. This indicates that you passed a weird
option to curl that was passed on to libcurl and rejected. Read up in the
manual!
.IP 49
Malformed telnet option.
.IP 51
The peer's SSL certificate or SSH MD5 fingerprint was not OK.
.IP 52
The server didn't reply anything, which here is considered an error.
.IP 53
SSL crypto engine not found.
.IP 54
Cannot set SSL crypto engine as default.
.IP 55
Failed sending network data.
.IP 56
Failure in receiving network data.
.IP 58
Problem with the local certificate.
.IP 59
Couldn't use specified SSL cipher.
.IP 60
Peer certificate cannot be authenticated with known CA certificates.
.IP 61
Unrecognized transfer encoding.
.IP 62
Invalid LDAP URL.
.IP 63
Maximum file size exceeded.
.IP 64
Requested FTP SSL level failed.
.IP 65
Sending the data requires a rewind that failed.
.IP 66
Failed to initialise SSL Engine.
.IP 67
The user name, password, or similar was not accepted and curl failed to log in.
.IP 68
File not found on TFTP server.
.IP 69
Permission problem on TFTP server.
.IP 70
Out of disk space on TFTP server.
.IP 71
Illegal TFTP operation.
.IP 72
Unknown TFTP transfer ID.
.IP 73
File already exists (TFTP).
.IP 74
No such user (TFTP).
.IP 75
Character conversion failed.
.IP 76
Character conversion functions required.
.IP 77
Problem with reading the SSL CA cert (path? access rights?).
.IP 78
The resource referenced in the URL does not exist.
.IP 79
An unspecified error occurred during the SSH session.
.IP 80
Failed to shut down the SSL connection.
.IP 82
Could not load CRL file, missing or wrong format (added in 7.19.0).
.IP 83
Issuer check failed (added in 7.19.0).
.IP 84
The FTP PRET command failed
.IP 85
RTSP: mismatch of CSeq numbers
.IP 86
RTSP: mismatch of Session Identifiers
.IP 87
unable to parse FTP file list
.IP 88
FTP chunk callback reported error
.IP 89
No connection available, the session will be queued
.IP 90
SSL public key does not matched pinned public key
.IP XX
More error codes will appear here in future releases. The existing ones
are meant to never change.
.SH AUTHORS / CONTRIBUTORS
Daniel Stenberg is the main author, but the whole list of contributors is
found in the separate THANKS file.
.SH WWW
https://curl.haxx.se
.SH FTP
ftp://ftp.sunet.se/pub/www/utilities/curl/
.SH "SEE ALSO"
.BR ftp (1),
.BR wget (1)

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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.\"
.\" DO NOT EDIT. Generated by the curl project gen.pl man page generator.
.\"
.TH curl 1 "16 Dec 2016" "Curl 7.52.0" "Curl Manual"
.SH NAME
curl \- transfer a URL
.SH SYNOPSIS
.B curl [options]
.I [URL...]
.SH DESCRIPTION
.B curl
is a tool to transfer data from or to a server, using one of the supported
protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP,
LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET
and TFTP). The command is designed to work without user interaction.
curl offers a busload of useful tricks like proxy support, user
authentication, FTP upload, HTTP post, SSL connections, cookies, file transfer
resume, Metalink, and more. As you will see below, the number of features will
make your head spin!
curl is powered by libcurl for all transfer-related features. See
\fIlibcurl(3)\fP for details.
.SH URL
The URL syntax is protocol-dependent. You'll find a detailed description in
RFC 3986.
You can specify multiple URLs or parts of URLs by writing part sets within
braces as in:
http://site.{one,two,three}.com
or you can get sequences of alphanumeric series by using [] as in:
ftp://ftp.example.com/file[1-100].txt
ftp://ftp.example.com/file[001-100].txt (with leading zeros)
ftp://ftp.example.com/file[a-z].txt
Nested sequences are not supported, but you can use several ones next to each
other:
http://example.com/archive[1996-1999]/vol[1-4]/part{a,b,c}.html
You can specify any amount of URLs on the command line. They will be fetched
in a sequential manner in the specified order.
You can specify a step counter for the ranges to get every Nth number or
letter:
http://example.com/file[1-100:10].txt
http://example.com/file[a-z:2].txt
When using [] or {} sequences when invoked from a command line prompt, you
probably have to put the full URL within double quotes to avoid the shell from
interfering with it. This also goes for other characters treated special, like
for example '&', '?' and '*'.
Provide the IPv6 zone index in the URL with an escaped percentage sign and the
interface name. Like in
http://[fe80::3%25eth0]/
If you specify URL without protocol:// prefix, curl will attempt to guess what
protocol you might want. It will then default to HTTP but try other protocols
based on often-used host name prefixes. For example, for host names starting
with "ftp." curl will assume you want to speak FTP.
curl will do its best to use what you pass to it as a URL. It is not trying to
validate it as a syntactically correct URL by any means but is instead
\fBvery\fP liberal with what it accepts.
curl will attempt to re-use connections for multiple file transfers, so that
getting many files from the same server will not do multiple connects /
handshakes. This improves speed. Of course this is only done on files
specified on a single command line and cannot be used between separate curl
invokes.
.SH "PROGRESS METER"
curl normally displays a progress meter during operations, indicating the
amount of transferred data, transfer speeds and estimated time left, etc. The
progress meter displays number of bytes and the speeds are in bytes per
second. The suffixes (k, M, G, T, P) are 1024 based. For example 1k is 1024
bytes. 1M is 1048576 bytes.
curl displays this data to the terminal by default, so if you invoke curl to
do an operation and it is about to write data to the terminal, it
\fIdisables\fP the progress meter as otherwise it would mess up the output
mixing progress meter and response data.
If you want a progress meter for HTTP POST or PUT requests, you need to
redirect the response output to a file, using shell redirect (>), -o [file] or
similar.
It is not the same case for FTP upload as that operation does not spit out
any response data to the terminal.
If you prefer a progress "bar" instead of the regular meter, --progress-bar is
your friend.
.SH OPTIONS
Options start with one or two dashes. Many of the options require an
additional value next to them.
The short "single-dash" form of the options, -d for example, may be used with
or without a space between it and its value, although a space is a recommended
separator. The long "double-dash" form, --data for example, requires a space
between it and its value.
Short version options that don't need any additional values can be used
immediately next to each other, like for example you can specify all the
options -O, -L and -v at once as -OLv.
In general, all boolean options are enabled with --\fBoption\fP and yet again
disabled with --\fBno-\fPoption. That is, you use the exact same option name
but prefix it with "no-". However, in this list we mostly only list and show
the --option version of them. (This concept with --no options was added in
7.19.0. Previously most options were toggled on/off on repeated use of the
same command line option.)

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@@ -1,98 +0,0 @@
.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" **************************************************************************
.\"
.TH curl-config 1 "25 Oct 2007" "Curl 7.17.1" "curl-config manual"
.SH NAME
curl-config \- Get information about a libcurl installation
.SH SYNOPSIS
.B curl-config [options]
.SH DESCRIPTION
.B curl-config
displays information about the curl and libcurl installation.
.SH OPTIONS
.IP "--ca"
Displays the built-in path to the CA cert bundle this libcurl uses.
.IP "--cc"
Displays the compiler used to build libcurl.
.IP "--cflags"
Set of compiler options (CFLAGS) to use when compiling files that use
libcurl. Currently that is only the include path to the curl include files.
.IP "--checkfor [version]"
Specify the oldest possible libcurl version string you want, and this
script will return 0 if the current installation is new enough or it
returns 1 and outputs a text saying that the current version is not new
enough. (Added in 7.15.4)
.IP "--configure"
Displays the arguments given to configure when building curl.
.IP "--feature"
Lists what particular main features the installed libcurl was built with. At
the time of writing, this list may include SSL, KRB4 or IPv6. Do not assume
any particular order. The keywords will be separated by newlines. There may be
none, one, or several keywords in the list.
.IP "--help"
Displays the available options.
.IP "--libs"
Shows the complete set of libs and other linker options you will need in order
to link your application with libcurl.
.IP "--prefix"
This is the prefix used when libcurl was installed. Libcurl is then installed
in $prefix/lib and its header files are installed in $prefix/include and so
on. The prefix is set with "configure --prefix".
.IP "--protocols"
Lists what particular protocols the installed libcurl was built to support. At
the time of writing, this list may include HTTP, HTTPS, FTP, FTPS, FILE,
TELNET, LDAP, DICT. Do not assume any particular order. The protocols will
be listed using uppercase and are separated by newlines. There may be none,
one, or several protocols in the list. (Added in 7.13.0)
.IP "--static-libs"
Shows the complete set of libs and other linker options you will need in order
to link your application with libcurl statically. (Added in 7.17.1)
.IP "--version"
Outputs version information about the installed libcurl.
.IP "--vernum"
Outputs version information about the installed libcurl, in numerical mode.
This outputs the version number, in hexadecimal, with 8 bits for each part;
major, minor, patch. So that libcurl 7.7.4 would appear as 070704 and libcurl
12.13.14 would appear as 0c0d0e... Note that the initial zero might be
omitted. (This option was broken in the 7.15.0 release.)
.SH "EXAMPLES"
What linker options do I need when I link with libcurl?
$ curl-config --libs
What compiler options do I need when I compile using libcurl functions?
$ curl-config --cflags
How do I know if libcurl was built with SSL support?
$ curl-config --feature | grep SSL
What's the installed libcurl version?
$ curl-config --version
How do I build a single file with a one-line command?
$ `curl-config --cc --cflags` -o example example.c `curl-config --libs`
.SH "SEE ALSO"
.BR curl (1)

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Source code using the multi interface to download many
* files, with a capped maximum amount of simultaneous transfers.
* </DESC>
* Written by Michael Wallner
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifndef WIN32
# include <unistd.h>
#endif
#include <curl/multi.h>
static const char *urls[] = {
"http://www.microsoft.com",
"http://www.opensource.org",
"http://www.google.com",
"http://www.yahoo.com",
"http://www.ibm.com",
"http://www.mysql.com",
"http://www.oracle.com",
"http://www.ripe.net",
"http://www.iana.org",
"http://www.amazon.com",
"http://www.netcraft.com",
"http://www.heise.de",
"http://www.chip.de",
"http://www.ca.com",
"http://www.cnet.com",
"http://www.news.com",
"http://www.cnn.com",
"http://www.wikipedia.org",
"http://www.dell.com",
"http://www.hp.com",
"http://www.cert.org",
"http://www.mit.edu",
"http://www.nist.gov",
"http://www.ebay.com",
"http://www.playstation.com",
"http://www.uefa.com",
"http://www.ieee.org",
"http://www.apple.com",
"http://www.symantec.com",
"http://www.zdnet.com",
"http://www.fujitsu.com",
"http://www.supermicro.com",
"http://www.hotmail.com",
"http://www.ecma.com",
"http://www.bbc.co.uk",
"http://news.google.com",
"http://www.foxnews.com",
"http://www.msn.com",
"http://www.wired.com",
"http://www.sky.com",
"http://www.usatoday.com",
"http://www.cbs.com",
"http://www.nbc.com",
"http://slashdot.org",
"http://www.bloglines.com",
"http://www.techweb.com",
"http://www.newslink.org",
"http://www.un.org",
};
#define MAX 10 /* number of simultaneous transfers */
#define CNT sizeof(urls)/sizeof(char *) /* total number of transfers to do */
static size_t cb(char *d, size_t n, size_t l, void *p)
{
/* take care of the data here, ignored in this example */
(void)d;
(void)p;
return n*l;
}
static void init(CURLM *cm, int i)
{
CURL *eh = curl_easy_init();
curl_easy_setopt(eh, CURLOPT_WRITEFUNCTION, cb);
curl_easy_setopt(eh, CURLOPT_HEADER, 0L);
curl_easy_setopt(eh, CURLOPT_URL, urls[i]);
curl_easy_setopt(eh, CURLOPT_PRIVATE, urls[i]);
curl_easy_setopt(eh, CURLOPT_VERBOSE, 0L);
curl_multi_add_handle(cm, eh);
}
int main(void)
{
CURLM *cm;
CURLMsg *msg;
long L;
unsigned int C=0;
int M, Q, U = -1;
fd_set R, W, E;
struct timeval T;
curl_global_init(CURL_GLOBAL_ALL);
cm = curl_multi_init();
/* we can optionally limit the total amount of connections this multi handle
uses */
curl_multi_setopt(cm, CURLMOPT_MAXCONNECTS, (long)MAX);
for(C = 0; C < MAX; ++C) {
init(cm, C);
}
while(U) {
curl_multi_perform(cm, &U);
if(U) {
FD_ZERO(&R);
FD_ZERO(&W);
FD_ZERO(&E);
if(curl_multi_fdset(cm, &R, &W, &E, &M)) {
fprintf(stderr, "E: curl_multi_fdset\n");
return EXIT_FAILURE;
}
if(curl_multi_timeout(cm, &L)) {
fprintf(stderr, "E: curl_multi_timeout\n");
return EXIT_FAILURE;
}
if(L == -1)
L = 100;
if(M == -1) {
#ifdef WIN32
Sleep(L);
#else
sleep((unsigned int)L / 1000);
#endif
}
else {
T.tv_sec = L/1000;
T.tv_usec = (L%1000)*1000;
if(0 > select(M+1, &R, &W, &E, &T)) {
fprintf(stderr, "E: select(%i,,,,%li): %i: %s\n",
M+1, L, errno, strerror(errno));
return EXIT_FAILURE;
}
}
}
while((msg = curl_multi_info_read(cm, &Q))) {
if(msg->msg == CURLMSG_DONE) {
char *url;
CURL *e = msg->easy_handle;
curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &url);
fprintf(stderr, "R: %d - %s <%s>\n",
msg->data.result, curl_easy_strerror(msg->data.result), url);
curl_multi_remove_handle(cm, e);
curl_easy_cleanup(e);
}
else {
fprintf(stderr, "E: CURLMsg (%d)\n", msg->msg);
}
if(C < CNT) {
init(cm, C++);
U++; /* just to prevent it from remaining at 0 if there are more
URLs to get */
}
}
}
curl_multi_cleanup(cm);
curl_global_cleanup();
return EXIT_SUCCESS;
}

66
proxy_c/third-lib/libcurl/docs/examples/Makefile.am
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@@ -1,66 +0,0 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
AUTOMAKE_OPTIONS = foreign nostdinc
EXTRA_DIST = README Makefile.example Makefile.inc Makefile.m32 \
Makefile.netware makefile.dj $(COMPLICATED_EXAMPLES)
# Specify our include paths here, and do it relative to $(top_srcdir) and
# $(top_builddir), to ensure that these paths which belong to the library
# being currently built and tested are searched before the library which
# might possibly already be installed in the system.
#
# $(top_builddir)/include/curl for generated curlbuild.h included from curl.h
# $(top_builddir)/include for generated curlbuild.h inc. from lib/curl_setup.h
# $(top_srcdir)/include is for libcurl's external include files
AM_CPPFLAGS = -I$(top_builddir)/include/curl \
-I$(top_builddir)/include \
-I$(top_srcdir)/include
LIBDIR = $(top_builddir)/lib
# Avoid libcurl obsolete stuff
AM_CPPFLAGS += -DCURL_NO_OLDIES
if USE_CPPFLAG_CURL_STATICLIB
AM_CPPFLAGS += -DCURL_STATICLIB
endif
# Prevent LIBS from being used for all link targets
LIBS = $(BLANK_AT_MAKETIME)
# Dependencies
if USE_EXPLICIT_LIB_DEPS
LDADD = $(LIBDIR)/libcurl.la @LIBCURL_LIBS@
else
LDADD = $(LIBDIR)/libcurl.la
endif
# Makefile.inc provides the check_PROGRAMS and COMPLICATED_EXAMPLES defines
include Makefile.inc
all: $(check_PROGRAMS)
checksrc:
@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.c

53
proxy_c/third-lib/libcurl/docs/examples/Makefile.example
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@@ -1,53 +0,0 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# What to call the final executable
TARGET = example
# Which object files that the executable consists of
OBJS= ftpget.o
# What compiler to use
CC = gcc
# Compiler flags, -g for debug, -c to make an object file
CFLAGS = -c -g
# This should point to a directory that holds libcurl, if it isn't
# in the system's standard lib dir
# We also set a -L to include the directory where we have the openssl
# libraries
LDFLAGS = -L/home/dast/lib -L/usr/local/ssl/lib
# We need -lcurl for the curl stuff
# We need -lsocket and -lnsl when on Solaris
# We need -lssl and -lcrypto when using libcurl with SSL support
# We need -lpthread for the pthread example
LIBS = -lcurl -lsocket -lnsl -lssl -lcrypto
# Link the target with all objects and libraries
$(TARGET) : $(OBJS)
$(CC) -o $(TARGET) $(OBJS) $(LDFLAGS) $(LIBS)
# Compile the source files into object files
ftpget.o : ftpget.c
$(CC) $(CFLAGS) $<

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43
proxy_c/third-lib/libcurl/docs/examples/Makefile.inc
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@@ -1,43 +0,0 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# These are all libcurl example programs to be test compiled
check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \
fopen ftpget ftpgetresp ftpupload getinfo getinmemory http-post httpput \
https multi-app multi-debugcallback multi-double multi-post multi-single \
persistant post-callback postit2 sepheaders simple simplepost simplessl \
sendrecv httpcustomheader certinfo chkspeed ftpgetinfo ftp-wildcard \
smtp-mail smtp-multi smtp-ssl smtp-tls smtp-vrfy smtp-expn rtsp \
externalsocket resolve progressfunc pop3-retr pop3-list pop3-uidl \
pop3-dele pop3-top pop3-stat pop3-noop pop3-ssl pop3-tls pop3-multi \
imap-list imap-lsub imap-fetch imap-store imap-append imap-examine \
imap-search imap-create imap-delete imap-copy imap-noop imap-ssl \
imap-tls imap-multi url2file sftpget ftpsget postinmemory http2-download \
http2-upload http2-serverpush getredirect
# These examples require external dependencies that may not be commonly
# available on POSIX systems, so don't bother attempting to compile them here.
COMPLICATED_EXAMPLES = curlgtk.c curlx.c htmltitle.cpp cacertinmem.c \
ftpuploadresume.c ghiper.c hiperfifo.c htmltidy.c multithread.c \
opensslthreadlock.c sampleconv.c synctime.c threaded-ssl.c evhiperfifo.c \
smooth-gtk-thread.c version-check.pl href_extractor.c asiohiper.cpp \
multi-uv.c xmlstream.c usercertinmem.c sessioninfo.c

297
proxy_c/third-lib/libcurl/docs/examples/Makefile.m32
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@@ -1,297 +0,0 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
#
## Makefile for building curl examples with MingW (GCC-3.2 or later)
## and optionally OpenSSL (1.0.2a), libssh2 (1.5), zlib (1.2.8), librtmp (2.4)
##
## Usage: mingw32-make -f Makefile.m32 CFG=-feature1[-feature2][-feature3][...]
## Example: mingw32-make -f Makefile.m32 CFG=-zlib-ssl-spi-winidn
##
## Hint: you can also set environment vars to control the build, f.e.:
## set ZLIB_PATH=c:/zlib-1.2.8
## set ZLIB=1
#
###########################################################################
# Edit the path below to point to the base of your Zlib sources.
ifndef ZLIB_PATH
ZLIB_PATH = ../../../zlib-1.2.8
endif
# Edit the path below to point to the base of your OpenSSL package.
ifndef OPENSSL_PATH
OPENSSL_PATH = ../../../openssl-1.0.2a
endif
# Edit the path below to point to the base of your LibSSH2 package.
ifndef LIBSSH2_PATH
LIBSSH2_PATH = ../../../libssh2-1.5.0
endif
# Edit the path below to point to the base of your librtmp package.
ifndef LIBRTMP_PATH
LIBRTMP_PATH = ../../../librtmp-2.4
endif
# Edit the path below to point to the base of your libidn package.
ifndef LIBIDN_PATH
LIBIDN_PATH = ../../../libidn-1.32
endif
# Edit the path below to point to the base of your MS IDN package.
# Microsoft Internationalized Domain Names (IDN) Mitigation APIs 1.1
# https://www.microsoft.com/en-us/download/details.aspx?id=734
ifndef WINIDN_PATH
WINIDN_PATH = ../../../Microsoft IDN Mitigation APIs
endif
# Edit the path below to point to the base of your Novell LDAP NDK.
ifndef LDAP_SDK
LDAP_SDK = c:/novell/ndk/cldapsdk/win32
endif
# Edit the path below to point to the base of your nghttp2 package.
ifndef NGHTTP2_PATH
NGHTTP2_PATH = ../../../nghttp2-1.0.0
endif
PROOT = ../..
# Edit the path below to point to the base of your c-ares package.
ifndef LIBCARES_PATH
LIBCARES_PATH = $(PROOT)/ares
endif
# Edit the var below to set to your architecture or set environment var.
ifndef ARCH
ifeq ($(findstring x86_64,$(shell $(CC) -dumpmachine)),x86_64)
ARCH = w64
else
ARCH = w32
endif
endif
CC = $(CROSSPREFIX)gcc
CFLAGS = -g -O2 -Wall
CFLAGS += -fno-strict-aliasing
ifeq ($(ARCH),w64)
CFLAGS += -m64 -D_AMD64_
LDFLAGS += -m64
RCFLAGS += -F pe-x86-64
else
CFLAGS += -m32
LDFLAGS += -m32
RCFLAGS += -F pe-i386
endif
# comment LDFLAGS below to keep debug info
LDFLAGS = -s
RC = $(CROSSPREFIX)windres
RCFLAGS = --include-dir=$(PROOT)/include -O COFF -i
# Platform-dependent helper tool macros
ifeq ($(findstring /sh,$(SHELL)),/sh)
DEL = rm -f $1
RMDIR = rm -fr $1
MKDIR = mkdir -p $1
COPY = -cp -afv $1 $2
#COPYR = -cp -afr $1/* $2
COPYR = -rsync -aC $1/* $2
TOUCH = touch $1
CAT = cat
ECHONL = echo ""
DL = '
else
ifeq "$(OS)" "Windows_NT"
DEL = -del 2>NUL /q /f $(subst /,\,$1)
RMDIR = -rd 2>NUL /q /s $(subst /,\,$1)
else
DEL = -del 2>NUL $(subst /,\,$1)
RMDIR = -deltree 2>NUL /y $(subst /,\,$1)
endif
MKDIR = -md 2>NUL $(subst /,\,$1)
COPY = -copy 2>NUL /y $(subst /,\,$1) $(subst /,\,$2)
COPYR = -xcopy 2>NUL /q /y /e $(subst /,\,$1) $(subst /,\,$2)
TOUCH = copy 2>&1>NUL /b $(subst /,\,$1) +,,
CAT = type
ECHONL = $(ComSpec) /c echo.
endif
########################################################
## Nothing more to do below this line!
ifeq ($(findstring -dyn,$(CFG)),-dyn)
DYN = 1
endif
ifeq ($(findstring -ares,$(CFG)),-ares)
ARES = 1
endif
ifeq ($(findstring -rtmp,$(CFG)),-rtmp)
RTMP = 1
SSL = 1
ZLIB = 1
endif
ifeq ($(findstring -ssh2,$(CFG)),-ssh2)
SSH2 = 1
SSL = 1
ZLIB = 1
endif
ifeq ($(findstring -ssl,$(CFG)),-ssl)
SSL = 1
endif
ifeq ($(findstring -zlib,$(CFG)),-zlib)
ZLIB = 1
endif
ifeq ($(findstring -idn,$(CFG)),-idn)
IDN = 1
endif
ifeq ($(findstring -winidn,$(CFG)),-winidn)
WINIDN = 1
endif
ifeq ($(findstring -sspi,$(CFG)),-sspi)
SSPI = 1
endif
ifeq ($(findstring -ldaps,$(CFG)),-ldaps)
LDAPS = 1
endif
ifeq ($(findstring -ipv6,$(CFG)),-ipv6)
IPV6 = 1
endif
ifeq ($(findstring -metalink,$(CFG)),-metalink)
METALINK = 1
endif
ifeq ($(findstring -winssl,$(CFG)),-winssl)
WINSSL = 1
SSPI = 1
endif
ifeq ($(findstring -nghttp2,$(CFG)),-nghttp2)
NGHTTP2 = 1
endif
INCLUDES = -I. -I$(PROOT) -I$(PROOT)/include -I$(PROOT)/lib
ifdef DYN
curl_DEPENDENCIES = $(PROOT)/lib/libcurldll.a $(PROOT)/lib/libcurl.dll
curl_LDADD = -L$(PROOT)/lib -lcurldll
else
curl_DEPENDENCIES = $(PROOT)/lib/libcurl.a
curl_LDADD = -L$(PROOT)/lib -lcurl
CFLAGS += -DCURL_STATICLIB
LDFLAGS += -static
endif
ifdef ARES
ifndef DYN
curl_DEPENDENCIES += $(LIBCARES_PATH)/libcares.a
endif
CFLAGS += -DUSE_ARES
curl_LDADD += -L"$(LIBCARES_PATH)" -lcares
endif
ifdef RTMP
CFLAGS += -DUSE_LIBRTMP
curl_LDADD += -L"$(LIBRTMP_PATH)/librtmp" -lrtmp -lwinmm
endif
ifdef NGHTTP2
CFLAGS += -DUSE_NGHTTP2
curl_LDADD += -L"$(NGHTTP2_PATH)/lib" -lnghttp2
endif
ifdef SSH2
CFLAGS += -DUSE_LIBSSH2 -DHAVE_LIBSSH2_H
curl_LDADD += -L"$(LIBSSH2_PATH)/win32" -lssh2
endif
ifdef SSL
ifndef OPENSSL_LIBPATH
OPENSSL_LIBS = -lssl -lcrypto
ifeq "$(wildcard $(OPENSSL_PATH)/out)" "$(OPENSSL_PATH)/out"
OPENSSL_LIBPATH = $(OPENSSL_PATH)/out
ifdef DYN
OPENSSL_LIBS = -lssl32 -leay32
endif
endif
ifeq "$(wildcard $(OPENSSL_PATH)/lib)" "$(OPENSSL_PATH)/lib"
OPENSSL_LIBPATH = $(OPENSSL_PATH)/lib
endif
endif
ifndef DYN
OPENSSL_LIBS += -lgdi32 -lcrypt32
endif
CFLAGS += -DUSE_OPENSSL
curl_LDADD += -L"$(OPENSSL_LIBPATH)" $(OPENSSL_LIBS)
endif
ifdef ZLIB
INCLUDES += -I"$(ZLIB_PATH)"
CFLAGS += -DHAVE_LIBZ -DHAVE_ZLIB_H
curl_LDADD += -L"$(ZLIB_PATH)" -lz
endif
ifdef IDN
CFLAGS += -DUSE_LIBIDN
curl_LDADD += -L"$(LIBIDN_PATH)/lib" -lidn
else
ifdef WINIDN
CFLAGS += -DUSE_WIN32_IDN
curl_LDADD += -L"$(WINIDN_PATH)" -lnormaliz
endif
endif
ifdef SSPI
CFLAGS += -DUSE_WINDOWS_SSPI
ifdef WINSSL
CFLAGS += -DUSE_SCHANNEL
endif
endif
ifdef IPV6
CFLAGS += -DENABLE_IPV6 -D_WIN32_WINNT=0x0501
endif
ifdef LDAPS
CFLAGS += -DHAVE_LDAP_SSL
endif
ifdef USE_LDAP_NOVELL
CFLAGS += -DCURL_HAS_NOVELL_LDAPSDK
curl_LDADD += -L"$(LDAP_SDK)/lib/mscvc" -lldapsdk -lldapssl -lldapx
endif
ifdef USE_LDAP_OPENLDAP
CFLAGS += -DCURL_HAS_OPENLDAP_LDAPSDK
curl_LDADD += -L"$(LDAP_SDK)/lib" -lldap -llber
endif
ifndef USE_LDAP_NOVELL
ifndef USE_LDAP_OPENLDAP
curl_LDADD += -lwldap32
endif
endif
curl_LDADD += -lws2_32
# Makefile.inc provides the check_PROGRAMS and COMPLICATED_EXAMPLES defines
include Makefile.inc
check_PROGRAMS := $(patsubst %,%.exe,$(strip $(check_PROGRAMS)))
check_PROGRAMS += ftpuploadresume.exe synctime.exe
.PRECIOUS: %.o
all: $(check_PROGRAMS)
%.exe: %.o $(curl_DEPENDENCIES)
$(CC) $(LDFLAGS) -o $@ $< $(curl_LDADD)
%.o: %.c
$(CC) $(INCLUDES) $(CFLAGS) -c $<
%.res: %.rc
$(RC) $(RCFLAGS) $< -o $@
clean:
@$(call DEL, $(check_PROGRAMS:.exe=.o))
distclean vclean: clean
@$(call DEL, $(check_PROGRAMS))

434
proxy_c/third-lib/libcurl/docs/examples/Makefile.netware
View File

@@ -1,434 +0,0 @@
#################################################################
#
## Makefile for building curl.nlm (NetWare version - gnu make)
## Use: make -f Makefile.netware
##
## Comments to: Guenter Knauf http://www.gknw.net/phpbb
#
#################################################################
# Edit the path below to point to the base of your Novell NDK.
ifndef NDKBASE
NDKBASE = c:/novell
endif
# Edit the path below to point to the base of your Zlib sources.
ifndef ZLIB_PATH
ZLIB_PATH = ../../../zlib-1.2.8
endif
# Edit the path below to point to the base of your OpenSSL package.
ifndef OPENSSL_PATH
OPENSSL_PATH = ../../../openssl-1.0.2a
endif
# Edit the path below to point to the base of your LibSSH2 package.
ifndef LIBSSH2_PATH
LIBSSH2_PATH = ../../../libssh2-1.5.0
endif
# Edit the path below to point to the base of your axTLS package.
ifndef AXTLS_PATH
AXTLS_PATH = ../../../axTLS-1.2.7
endif
# Edit the path below to point to the base of your libidn package.
ifndef LIBIDN_PATH
LIBIDN_PATH = ../../../libidn-1.32
endif
# Edit the path below to point to the base of your librtmp package.
ifndef LIBRTMP_PATH
LIBRTMP_PATH = ../../../librtmp-2.4
endif
# Edit the path below to point to the base of your fbopenssl package.
ifndef FBOPENSSL_PATH
FBOPENSSL_PATH = ../../fbopenssl-0.4
endif
# Edit the path below to point to the base of your c-ares package.
ifndef LIBCARES_PATH
LIBCARES_PATH = ../../ares
endif
ifndef INSTDIR
INSTDIR = ..$(DS)..$(DS)curl-$(LIBCURL_VERSION_STR)-bin-nw
endif
# Edit the vars below to change NLM target settings.
TARGET = examples
VERSION = $(LIBCURL_VERSION)
COPYR = Copyright (C) $(LIBCURL_COPYRIGHT_STR)
DESCR = curl ($(LIBARCH))
MTSAFE = YES
STACK = 8192
SCREEN = Example Program
# Comment the line below if you dont want to load protected automatically.
# LDRING = 3
# Uncomment the next line to enable linking with POSIX semantics.
# POSIXFL = 1
# Edit the var below to point to your lib architecture.
ifndef LIBARCH
LIBARCH = LIBC
endif
# must be equal to NDEBUG or DEBUG, CURLDEBUG
ifndef DB
DB = NDEBUG
endif
# Optimization: -O<n> or debugging: -g
ifeq ($(DB),NDEBUG)
OPT = -O2
OBJDIR = release
else
OPT = -g
OBJDIR = debug
endif
# The following lines defines your compiler.
ifdef CWFolder
METROWERKS = $(CWFolder)
endif
ifdef METROWERKS
# MWCW_PATH = $(subst \,/,$(METROWERKS))/Novell Support
MWCW_PATH = $(subst \,/,$(METROWERKS))/Novell Support/Metrowerks Support
CC = mwccnlm
else
CC = gcc
endif
PERL = perl
# Here you can find a native Win32 binary of the original awk:
# http://www.gknw.net/development/prgtools/awk-20100523.zip
AWK = awk
CP = cp -afv
MKDIR = mkdir
# RM = rm -f
# If you want to mark the target as MTSAFE you will need a tool for
# generating the xdc data for the linker; here's a minimal tool:
# http://www.gknw.net/development/prgtools/mkxdc.zip
MPKXDC = mkxdc
# LIBARCH_U = $(shell $(AWK) 'BEGIN {print toupper(ARGV[1])}' $(LIBARCH))
LIBARCH_L = $(shell $(AWK) 'BEGIN {print tolower(ARGV[1])}' $(LIBARCH))
# Include the version info retrieved from curlver.h
-include $(OBJDIR)/version.inc
# Global flags for all compilers
CFLAGS += $(OPT) -D$(DB) -DNETWARE -DHAVE_CONFIG_H -nostdinc
ifeq ($(CC),mwccnlm)
LD = mwldnlm
LDFLAGS = -nostdlib $< $(PRELUDE) $(LDLIBS) -o $@ -commandfile
LIBEXT = lib
CFLAGS += -gccinc -inline off -opt nointrinsics -proc 586
CFLAGS += -relax_pointers
#CFLAGS += -w on
ifeq ($(LIBARCH),LIBC)
ifeq ($(POSIXFL),1)
PRELUDE = $(NDK_LIBC)/imports/posixpre.o
else
PRELUDE = $(NDK_LIBC)/imports/libcpre.o
endif
CFLAGS += -align 4
else
# PRELUDE = $(NDK_CLIB)/imports/clibpre.o
# to avoid the __init_* / __deinit_* whoes dont use prelude from NDK
PRELUDE = "$(MWCW_PATH)/libraries/runtime/prelude.obj"
# CFLAGS += -include "$(MWCW_PATH)/headers/nlm_clib_prefix.h"
CFLAGS += -align 1
endif
else
LD = nlmconv
LDFLAGS = -T
LIBEXT = a
CFLAGS += -m32
CFLAGS += -fno-builtin -fno-strict-aliasing
ifeq ($(findstring gcc,$(CC)),gcc)
CFLAGS += -fpcc-struct-return
endif
CFLAGS += -Wall # -pedantic
ifeq ($(LIBARCH),LIBC)
ifeq ($(POSIXFL),1)
PRELUDE = $(NDK_LIBC)/imports/posixpre.gcc.o
else
PRELUDE = $(NDK_LIBC)/imports/libcpre.gcc.o
endif
else
# PRELUDE = $(NDK_CLIB)/imports/clibpre.gcc.o
# to avoid the __init_* / __deinit_* whoes dont use prelude from NDK
# http://www.gknw.net/development/mk_nlm/gcc_pre.zip
PRELUDE = $(NDK_ROOT)/pre/prelude.o
CFLAGS += -include $(NDKBASE)/nlmconv/genlm.h
endif
endif
NDK_ROOT = $(NDKBASE)/ndk
ifndef NDK_CLIB
NDK_CLIB = $(NDK_ROOT)/nwsdk
endif
ifndef NDK_LIBC
NDK_LIBC = $(NDK_ROOT)/libc
endif
ifndef NDK_LDAP
NDK_LDAP = $(NDK_ROOT)/cldapsdk/netware
endif
CURL_INC = ../../include
CURL_LIB = ../../lib
INCLUDES = -I$(CURL_INC)
ifeq ($(findstring -static,$(CFG)),-static)
LINK_STATIC = 1
endif
ifeq ($(findstring -ares,$(CFG)),-ares)
WITH_ARES = 1
endif
ifeq ($(findstring -rtmp,$(CFG)),-rtmp)
WITH_RTMP = 1
WITH_SSL = 1
WITH_ZLIB = 1
endif
ifeq ($(findstring -ssh2,$(CFG)),-ssh2)
WITH_SSH2 = 1
WITH_SSL = 1
WITH_ZLIB = 1
endif
ifeq ($(findstring -axtls,$(CFG)),-axtls)
WITH_AXTLS = 1
WITH_SSL =
else
ifeq ($(findstring -ssl,$(CFG)),-ssl)
WITH_SSL = 1
endif
endif
ifeq ($(findstring -zlib,$(CFG)),-zlib)
WITH_ZLIB = 1
endif
ifeq ($(findstring -idn,$(CFG)),-idn)
WITH_IDN = 1
endif
ifeq ($(findstring -ipv6,$(CFG)),-ipv6)
ENABLE_IPV6 = 1
endif
ifdef LINK_STATIC
LDLIBS = $(CURL_LIB)/libcurl.$(LIBEXT)
ifdef WITH_ARES
LDLIBS += $(LIBCARES_PATH)/libcares.$(LIBEXT)
endif
else
MODULES = libcurl.nlm
IMPORTS = @$(CURL_LIB)/libcurl.imp
endif
ifdef WITH_SSH2
# INCLUDES += -I$(LIBSSH2_PATH)/include
ifdef LINK_STATIC
LDLIBS += $(LIBSSH2_PATH)/nw/libssh2.$(LIBEXT)
else
MODULES += libssh2.nlm
IMPORTS += @$(LIBSSH2_PATH)/nw/libssh2.imp
endif
endif
ifdef WITH_RTMP
# INCLUDES += -I$(LIBRTMP_PATH)
ifdef LINK_STATIC
LDLIBS += $(LIBRTMP_PATH)/librtmp/librtmp.$(LIBEXT)
endif
endif
ifdef WITH_SSL
INCLUDES += -I$(OPENSSL_PATH)/outinc_nw_$(LIBARCH_L)
LDLIBS += $(OPENSSL_PATH)/out_nw_$(LIBARCH_L)/ssl.$(LIBEXT)
LDLIBS += $(OPENSSL_PATH)/out_nw_$(LIBARCH_L)/crypto.$(LIBEXT)
IMPORTS += GetProcessSwitchCount RunningProcess
else
ifdef WITH_AXTLS
INCLUDES += -I$(AXTLS_PATH)/inc
ifdef LINK_STATIC
LDLIBS += $(AXTLS_PATH)/lib/libaxtls.$(LIBEXT)
else
MODULES += libaxtls.nlm
IMPORTS += $(AXTLS_PATH)/lib/libaxtls.imp
endif
endif
endif
ifdef WITH_ZLIB
# INCLUDES += -I$(ZLIB_PATH)
ifdef LINK_STATIC
LDLIBS += $(ZLIB_PATH)/nw/$(LIBARCH)/libz.$(LIBEXT)
else
MODULES += libz.nlm
IMPORTS += @$(ZLIB_PATH)/nw/$(LIBARCH)/libz.imp
endif
endif
ifdef WITH_IDN
# INCLUDES += -I$(LIBIDN_PATH)/include
LDLIBS += $(LIBIDN_PATH)/lib/libidn.$(LIBEXT)
endif
ifeq ($(LIBARCH),LIBC)
INCLUDES += -I$(NDK_LIBC)/include
# INCLUDES += -I$(NDK_LIBC)/include/nks
# INCLUDES += -I$(NDK_LIBC)/include/winsock
CFLAGS += -D_POSIX_SOURCE
else
INCLUDES += -I$(NDK_CLIB)/include/nlm
# INCLUDES += -I$(NDK_CLIB)/include
endif
ifndef DISABLE_LDAP
# INCLUDES += -I$(NDK_LDAP)/$(LIBARCH_L)/inc
endif
CFLAGS += $(INCLUDES)
ifeq ($(MTSAFE),YES)
XDCOPT = -n
endif
ifeq ($(MTSAFE),NO)
XDCOPT = -u
endif
ifdef XDCOPT
XDCDATA = $(OBJDIR)/$(TARGET).xdc
endif
ifeq ($(findstring /sh,$(SHELL)),/sh)
DL = '
DS = /
PCT = %
#-include $(NDKBASE)/nlmconv/ncpfs.inc
else
DS = \\
PCT = %%
endif
# Makefile.inc provides the CSOURCES and HHEADERS defines
include Makefile.inc
check_PROGRAMS := $(patsubst %,%.nlm,$(strip $(check_PROGRAMS)))
.PRECIOUS: $(OBJDIR)/%.o $(OBJDIR)/%.def $(OBJDIR)/%.xdc
all: prebuild $(check_PROGRAMS)
prebuild: $(OBJDIR) $(OBJDIR)/version.inc
$(OBJDIR)/%.o: %.c
@echo Compiling $<
$(CC) $(CFLAGS) -c $< -o $@
$(OBJDIR)/version.inc: $(CURL_INC)/curl/curlver.h $(OBJDIR)
@echo Creating $@
@$(AWK) -f ../../packages/NetWare/get_ver.awk $< > $@
install: $(INSTDIR) all
@$(CP) $(check_PROGRAMS) $(INSTDIR)
clean:
-$(RM) -r $(OBJDIR)
distclean vclean: clean
-$(RM) $(check_PROGRAMS)
$(OBJDIR) $(INSTDIR):
@$(MKDIR) $@
%.nlm: $(OBJDIR)/%.o $(OBJDIR)/%.def $(XDCDATA)
@echo Linking $@
@-$(RM) $@
@$(LD) $(LDFLAGS) $(OBJDIR)/$(@:.nlm=.def)
$(OBJDIR)/%.xdc: Makefile.netware
@echo Creating $@
@$(MPKXDC) $(XDCOPT) $@
$(OBJDIR)/%.def: Makefile.netware
@echo $(DL)# DEF file for linking with $(LD)$(DL) > $@
@echo $(DL)# Do not edit this file - it is created by Make!$(DL) >> $@
@echo $(DL)# All your changes will be lost!!$(DL) >> $@
@echo $(DL)#$(DL) >> $@
@echo $(DL)copyright "$(COPYR)"$(DL) >> $@
@echo $(DL)description "$(DESCR) $(notdir $(@:.def=)) Example"$(DL) >> $@
@echo $(DL)version $(VERSION)$(DL) >> $@
ifdef NLMTYPE
@echo $(DL)type $(NLMTYPE)$(DL) >> $@
endif
ifdef STACK
@echo $(DL)stack $(STACK)$(DL) >> $@
endif
ifdef SCREEN
@echo $(DL)screenname "$(DESCR) $(notdir $(@:.def=)) $(SCREEN)"$(DL) >> $@
else
@echo $(DL)screenname "DEFAULT"$(DL) >> $@
endif
ifneq ($(DB),NDEBUG)
@echo $(DL)debug$(DL) >> $@
endif
@echo $(DL)threadname "_$(notdir $(@:.def=))"$(DL) >> $@
ifdef XDCDATA
@echo $(DL)xdcdata $(XDCDATA)$(DL) >> $@
endif
ifeq ($(LDRING),0)
@echo $(DL)flag_on 16$(DL) >> $@
endif
ifeq ($(LDRING),3)
@echo $(DL)flag_on 512$(DL) >> $@
endif
ifeq ($(LIBARCH),CLIB)
@echo $(DL)start _Prelude$(DL) >> $@
@echo $(DL)exit _Stop$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/clib.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/threads.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/nlmlib.imp$(DL) >> $@
@echo $(DL)import @$(NDK_CLIB)/imports/socklib.imp$(DL) >> $@
@echo $(DL)module clib$(DL) >> $@
ifndef DISABLE_LDAP
@echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapsdk.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapssl.imp$(DL) >> $@
# @echo $(DL)import @$(NDK_LDAP)/clib/imports/ldapx.imp$(DL) >> $@
@echo $(DL)module ldapsdk ldapssl$(DL) >> $@
endif
else
ifeq ($(POSIXFL),1)
@echo $(DL)flag_on 4194304$(DL) >> $@
endif
@echo $(DL)flag_on 64$(DL) >> $@
@echo $(DL)pseudopreemption$(DL) >> $@
ifeq ($(findstring posixpre,$(PRELUDE)),posixpre)
@echo $(DL)start POSIX_Start$(DL) >> $@
@echo $(DL)exit POSIX_Stop$(DL) >> $@
@echo $(DL)check POSIX_CheckUnload$(DL) >> $@
else
@echo $(DL)start _LibCPrelude$(DL) >> $@
@echo $(DL)exit _LibCPostlude$(DL) >> $@
@echo $(DL)check _LibCCheckUnload$(DL) >> $@
endif
@echo $(DL)import @$(NDK_LIBC)/imports/libc.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LIBC)/imports/netware.imp$(DL) >> $@
@echo $(DL)module libc$(DL) >> $@
ifndef DISABLE_LDAP
@echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapsdk.imp$(DL) >> $@
@echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapssl.imp$(DL) >> $@
# @echo $(DL)import @$(NDK_LDAP)/libc/imports/lldapx.imp$(DL) >> $@
@echo $(DL)module lldapsdk lldapssl$(DL) >> $@
endif
endif
ifdef MODULES
@echo $(DL)module $(MODULES)$(DL) >> $@
endif
ifdef EXPORTS
@echo $(DL)export $(EXPORTS)$(DL) >> $@
endif
ifdef IMPORTS
@echo $(DL)import $(IMPORTS)$(DL) >> $@
endif
ifeq ($(findstring nlmconv,$(LD)),nlmconv)
@echo $(DL)input $(PRELUDE)$(DL) >> $@
@echo $(DL)input $(@:.def=.o)$(DL) >> $@
ifdef LDLIBS
@echo $(DL)input $(LDLIBS)$(DL) >> $@
endif
@echo $(DL)output $(notdir $(@:.def=.nlm))$(DL) >> $@
endif

38
proxy_c/third-lib/libcurl/docs/examples/README
View File

@@ -1,38 +0,0 @@
_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
This directory is for libcurl programming examples. They are meant to show
some simple steps on how you can build your own application to take full
advantage of libcurl.
If you end up with other small but still useful example sources, please mail
them for submission in future packages and on the web site.
BUILDING
The Makefile.example is an example makefile that could be used to build these
examples. Just edit the file according to your system and requirements first.
Most examples should build fine using a command line like this:
$ `curl-config --cc --cflags --libs` -o example example.c
Some compilers don't like having the arguments in this order but instead
want you do reorganize them like:
$ `curl-config --cc` -o example example.c `curl-config --cflags --libs`
*PLEASE* do not use the curl.haxx.se site as a test target for your libcurl
applications/experiments. Even if some of the examples use that site as a URL
at some places, it doesn't mean that the URLs work or that we expect you to
actually torture our web site with your tests! Thanks.
EXAMPLES
Each example source code file is designed to be and work stand-alone and
rather self-explanatory. The examples may at times lack the level of error
checks you need in a real world, but that is then only for the sake of
readability: to make the code smaller and easier to follow.

192
proxy_c/third-lib/libcurl/docs/examples/anyauthput.c
View File

@@ -1,192 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP PUT upload with authentiction using "any" method. libcurl picks the
* one the server supports/wants.
* </DESC>
*/
#include <stdio.h>
#include <fcntl.h>
#ifdef WIN32
# include <io.h>
#else
# ifdef __VMS
typedef int intptr_t;
# endif
# if !defined(_AIX) && !defined(__sgi) && !defined(__osf__)
# include <stdint.h>
# endif
# include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef _MSC_VER
# ifdef _WIN64
typedef __int64 intptr_t;
# else
typedef int intptr_t;
# endif
#endif
#include <curl/curl.h>
#if LIBCURL_VERSION_NUM < 0x070c03
#error "upgrade your libcurl to no less than 7.12.3"
#endif
#ifndef TRUE
#define TRUE 1
#endif
#if defined(_AIX) || defined(__sgi) || defined(__osf__)
#ifndef intptr_t
#define intptr_t long
#endif
#endif
/*
* This example shows a HTTP PUT operation with authentiction using "any"
* type. It PUTs a file given as a command line argument to the URL also given
* on the command line.
*
* Since libcurl 7.12.3, using "any" auth and POST/PUT requires a set ioctl
* function.
*
* This example also uses its own read callback.
*/
/* ioctl callback function */
static curlioerr my_ioctl(CURL *handle, curliocmd cmd, void *userp)
{
int *fdp = (int *)userp;
int fd = *fdp;
(void)handle; /* not used in here */
switch(cmd) {
case CURLIOCMD_RESTARTREAD:
/* mr libcurl kindly asks as to rewind the read data stream to start */
if(-1 == lseek(fd, 0, SEEK_SET))
/* couldn't rewind */
return CURLIOE_FAILRESTART;
break;
default: /* ignore unknown commands */
return CURLIOE_UNKNOWNCMD;
}
return CURLIOE_OK; /* success! */
}
/* read callback function, fread() look alike */
static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
{
ssize_t retcode;
curl_off_t nread;
int *fdp = (int *)stream;
int fd = *fdp;
retcode = read(fd, ptr, size * nmemb);
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(int argc, char **argv)
{
CURL *curl;
CURLcode res;
int hd;
struct stat file_info;
char *file;
char *url;
if(argc < 3)
return 1;
file= argv[1];
url = argv[2];
/* get the file size of the local file */
hd = open(file, O_RDONLY);
fstat(hd, &file_info);
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, (void *)&hd);
/* set the ioctl function */
curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, my_ioctl);
/* pass the file descriptor to the ioctl callback as well */
curl_easy_setopt(curl, CURLOPT_IOCTLDATA, (void *)&hd);
/* enable "uploading" (which means PUT when doing HTTP) */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* specify target URL, and note that this URL should also include a file
name, not only a directory (as you can do with GTP uploads) */
curl_easy_setopt(curl, CURLOPT_URL, url);
/* and give the size of the upload, this supports large file sizes
on systems that have general support for it */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* tell libcurl we can use "any" auth, which lets the lib pick one, but it
also costs one extra round-trip and possibly sending of all the PUT
data twice!!! */
curl_easy_setopt(curl, CURLOPT_HTTPAUTH, (long)CURLAUTH_ANY);
/* set user name and password for the authentication */
curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
close(hd); /* close the local file */
curl_global_cleanup();
return 0;
}

467
proxy_c/third-lib/libcurl/docs/examples/asiohiper.cpp
View File

@@ -1,467 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* demonstrate the use of multi socket interface with boost::asio
* </DESC>
*/
/*
* This program is in c++ and uses boost::asio instead of libevent/libev.
* Requires boost::asio, boost::bind and boost::system
*
* This is an adaptation of libcurl's "hiperfifo.c" and "evhiperfifo.c"
* sample programs. This example implements a subset of the functionality from
* hiperfifo.c, for full functionality refer hiperfifo.c or evhiperfifo.c
*
* Written by Lijo Antony based on hiperfifo.c by Jeff Pohlmeyer
*
* When running, the program creates an easy handle for a URL and
* uses the curl_multi API to fetch it.
*
* Note:
* For the sake of simplicity, URL is hard coded to "www.google.com"
*
* This is purely a demo app, all retrieved data is simply discarded by the write
* callback.
*/
#include <curl/curl.h>
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <iostream>
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* boost::asio related objects
* using global variables for simplicity
*/
boost::asio::io_service io_service;
boost::asio::deadline_timer timer(io_service);
std::map<curl_socket_t, boost::asio::ip::tcp::socket *> socket_map;
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
CURLM *multi;
int still_running;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
static void timer_cb(const boost::system::error_code & error, GlobalInfo *g);
/* Update the event timer after curl_multi library calls */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
fprintf(MSG_OUT, "\nmulti_timer_cb: timeout_ms %ld", timeout_ms);
/* cancel running timer */
timer.cancel();
if(timeout_ms > 0)
{
/* update timer */
timer.expires_from_now(boost::posix_time::millisec(timeout_ms));
timer.async_wait(boost::bind(&timer_cb, _1, g));
}
else
{
/* call timeout function immediately */
boost::system::error_code error; /*success*/
timer_cb(error, g);
}
return 0;
}
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code)
{
const char *s;
switch(code)
{
case CURLM_CALL_MULTI_PERFORM:
s = "CURLM_CALL_MULTI_PERFORM";
break;
case CURLM_BAD_HANDLE:
s = "CURLM_BAD_HANDLE";
break;
case CURLM_BAD_EASY_HANDLE:
s = "CURLM_BAD_EASY_HANDLE";
break;
case CURLM_OUT_OF_MEMORY:
s = "CURLM_OUT_OF_MEMORY";
break;
case CURLM_INTERNAL_ERROR:
s = "CURLM_INTERNAL_ERROR";
break;
case CURLM_UNKNOWN_OPTION:
s = "CURLM_UNKNOWN_OPTION";
break;
case CURLM_LAST:
s = "CURLM_LAST";
break;
default:
s = "CURLM_unknown";
break;
case CURLM_BAD_SOCKET:
s = "CURLM_BAD_SOCKET";
fprintf(MSG_OUT, "\nERROR: %s returns %s", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "\nERROR: %s returns %s", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "\nREMAINING: %d", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left)))
{
if(msg->msg == CURLMSG_DONE)
{
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "\nDONE: %s => (%d) %s", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by asio when there is an action on a socket */
static void event_cb(GlobalInfo *g, boost::asio::ip::tcp::socket *tcp_socket,
int action)
{
fprintf(MSG_OUT, "\nevent_cb: action=%d", action);
CURLMcode rc;
rc = curl_multi_socket_action(g->multi, tcp_socket->native_handle(), action,
&g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0)
{
fprintf(MSG_OUT, "\nlast transfer done, kill timeout");
timer.cancel();
}
}
/* Called by asio when our timeout expires */
static void timer_cb(const boost::system::error_code & error, GlobalInfo *g)
{
if(!error)
{
fprintf(MSG_OUT, "\ntimer_cb: ");
CURLMcode rc;
rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
}
/* Clean up any data */
static void remsock(int *f, GlobalInfo *g)
{
fprintf(MSG_OUT, "\nremsock: ");
if(f)
{
free(f);
}
}
static void setsock(int *fdp, curl_socket_t s, CURL*e, int act, GlobalInfo*g)
{
fprintf(MSG_OUT, "\nsetsock: socket=%d, act=%d, fdp=%p", s, act, fdp);
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(s);
if(it == socket_map.end())
{
fprintf(MSG_OUT, "\nsocket %d is a c-ares socket, ignoring", s);
return;
}
boost::asio::ip::tcp::socket * tcp_socket = it->second;
*fdp = act;
if(act == CURL_POLL_IN)
{
fprintf(MSG_OUT, "\nwatching for socket to become readable");
tcp_socket->async_read_some(boost::asio::null_buffers(),
boost::bind(&event_cb, g, tcp_socket, act));
}
else if (act == CURL_POLL_OUT)
{
fprintf(MSG_OUT, "\nwatching for socket to become writable");
tcp_socket->async_write_some(boost::asio::null_buffers(),
boost::bind(&event_cb, g, tcp_socket, act));
}
else if(act == CURL_POLL_INOUT)
{
fprintf(MSG_OUT, "\nwatching for socket to become readable & writable");
tcp_socket->async_read_some(boost::asio::null_buffers(),
boost::bind(&event_cb, g, tcp_socket, act));
tcp_socket->async_write_some(boost::asio::null_buffers(),
boost::bind(&event_cb, g, tcp_socket, act));
}
}
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
/* fdp is used to store current action */
int *fdp = (int *) calloc(sizeof(int), 1);
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
fprintf(MSG_OUT, "\nsock_cb: socket=%d, what=%d, sockp=%p", s, what, sockp);
GlobalInfo *g = (GlobalInfo*) cbp;
int *actionp = (int *) sockp;
const char *whatstr[] = { "none", "IN", "OUT", "INOUT", "REMOVE"};
fprintf(MSG_OUT,
"\nsocket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE)
{
fprintf(MSG_OUT, "\n");
remsock(actionp, g);
}
else
{
if(!actionp)
{
fprintf(MSG_OUT, "\nAdding data: %s", whatstr[what]);
addsock(s, e, what, g);
}
else
{
fprintf(MSG_OUT,
"\nChanging action from %s to %s",
whatstr[*actionp], whatstr[what]);
setsock(actionp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t written = size * nmemb;
char* pBuffer = (char *) malloc(written + 1);
strncpy(pBuffer, (const char *)ptr, written);
pBuffer[written] = '\0';
fprintf(MSG_OUT, "%s", pBuffer);
free(pBuffer);
return written;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "\nProgress: %s (%g/%g)", conn->url, dlnow, dltotal);
fprintf(MSG_OUT, "\nProgress: %s (%g)", conn->url, ult);
return 0;
}
/* CURLOPT_OPENSOCKETFUNCTION */
static curl_socket_t opensocket(void *clientp, curlsocktype purpose,
struct curl_sockaddr *address)
{
fprintf(MSG_OUT, "\nopensocket :");
curl_socket_t sockfd = CURL_SOCKET_BAD;
/* restrict to IPv4 */
if(purpose == CURLSOCKTYPE_IPCXN && address->family == AF_INET)
{
/* create a tcp socket object */
boost::asio::ip::tcp::socket *tcp_socket = new boost::asio::ip::tcp::socket(io_service);
/* open it and get the native handle*/
boost::system::error_code ec;
tcp_socket->open(boost::asio::ip::tcp::v4(), ec);
if(ec)
{
/* An error occurred */
std::cout << std::endl << "Couldn't open socket [" << ec << "][" << ec.message() << "]";
fprintf(MSG_OUT, "\nERROR: Returning CURL_SOCKET_BAD to signal error");
}
else
{
sockfd = tcp_socket->native_handle();
fprintf(MSG_OUT, "\nOpened socket %d", sockfd);
/* save it for monitoring */
socket_map.insert(std::pair<curl_socket_t, boost::asio::ip::tcp::socket *>(sockfd, tcp_socket));
}
}
return sockfd;
}
/* CURLOPT_CLOSESOCKETFUNCTION */
static int close_socket(void *clientp, curl_socket_t item)
{
fprintf(MSG_OUT, "\nclose_socket : %d", item);
std::map<curl_socket_t, boost::asio::ip::tcp::socket *>::iterator it = socket_map.find(item);
if(it != socket_map.end())
{
delete it->second;
socket_map.erase(it);
}
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = (ConnInfo *) calloc(1, sizeof(ConnInfo));
conn->easy = curl_easy_init();
if(!conn->easy)
{
fprintf(MSG_OUT, "\ncurl_easy_init() failed, exiting!");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 1L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 3L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 10L);
/* call this function to get a socket */
curl_easy_setopt(conn->easy, CURLOPT_OPENSOCKETFUNCTION, opensocket);
/* call this function to close a socket */
curl_easy_setopt(conn->easy, CURLOPT_CLOSESOCKETFUNCTION, close_socket);
fprintf(MSG_OUT,
"\nAdding easy %p to multi %p (%s)", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
int main(int argc, char **argv)
{
GlobalInfo g;
(void)argc;
(void)argv;
memset(&g, 0, sizeof(GlobalInfo));
g.multi = curl_multi_init();
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
new_conn((char *)"www.google.com", &g); /* add a URL */
/* enter io_service run loop */
io_service.run();
curl_multi_cleanup(g.multi);
fprintf(MSG_OUT, "\ndone.\n");
return 0;
}

149
proxy_c/third-lib/libcurl/docs/examples/cacertinmem.c
View File

@@ -1,149 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* CA cert in memory with OpenSSL to get a HTTPS page.
* </DESC>
*/
#include <openssl/ssl.h>
#include <curl/curl.h>
#include <stdio.h>
size_t writefunction(void *ptr, size_t size, size_t nmemb, void *stream)
{
fwrite(ptr, size, nmemb, stream);
return (nmemb*size);
}
static CURLcode sslctx_function(CURL *curl, void *sslctx, void *parm)
{
X509_STORE *store;
X509 *cert=NULL;
BIO *bio;
char *mypem = /* www.cacert.org */
"-----BEGIN CERTIFICATE-----\n"\
"MIIHPTCCBSWgAwIBAgIBADANBgkqhkiG9w0BAQQFADB5MRAwDgYDVQQKEwdSb290\n"\
"IENBMR4wHAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNB\n"\
"IENlcnQgU2lnbmluZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRA\n"\
"Y2FjZXJ0Lm9yZzAeFw0wMzAzMzAxMjI5NDlaFw0zMzAzMjkxMjI5NDlaMHkxEDAO\n"\
"BgNVBAoTB1Jvb3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9yZzEi\n"\
"MCAGA1UEAxMZQ0EgQ2VydCBTaWduaW5nIEF1dGhvcml0eTEhMB8GCSqGSIb3DQEJ\n"\
"ARYSc3VwcG9ydEBjYWNlcnQub3JnMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC\n"\
"CgKCAgEAziLA4kZ97DYoB1CW8qAzQIxL8TtmPzHlawI229Z89vGIj053NgVBlfkJ\n"\
"8BLPRoZzYLdufujAWGSuzbCtRRcMY/pnCujW0r8+55jE8Ez64AO7NV1sId6eINm6\n"\
"zWYyN3L69wj1x81YyY7nDl7qPv4coRQKFWyGhFtkZip6qUtTefWIonvuLwphK42y\n"\
"fk1WpRPs6tqSnqxEQR5YYGUFZvjARL3LlPdCfgv3ZWiYUQXw8wWRBB0bF4LsyFe7\n"\
"w2t6iPGwcswlWyCR7BYCEo8y6RcYSNDHBS4CMEK4JZwFaz+qOqfrU0j36NK2B5jc\n"\
"G8Y0f3/JHIJ6BVgrCFvzOKKrF11myZjXnhCLotLddJr3cQxyYN/Nb5gznZY0dj4k\n"\
"epKwDpUeb+agRThHqtdB7Uq3EvbXG4OKDy7YCbZZ16oE/9KTfWgu3YtLq1i6L43q\n"\
"laegw1SJpfvbi1EinbLDvhG+LJGGi5Z4rSDTii8aP8bQUWWHIbEZAWV/RRyH9XzQ\n"\
"QUxPKZgh/TMfdQwEUfoZd9vUFBzugcMd9Zi3aQaRIt0AUMyBMawSB3s42mhb5ivU\n"\
"fslfrejrckzzAeVLIL+aplfKkQABi6F1ITe1Yw1nPkZPcCBnzsXWWdsC4PDSy826\n"\
"YreQQejdIOQpvGQpQsgi3Hia/0PsmBsJUUtaWsJx8cTLc6nloQsCAwEAAaOCAc4w\n"\
"ggHKMB0GA1UdDgQWBBQWtTIb1Mfz4OaO873SsDrusjkY0TCBowYDVR0jBIGbMIGY\n"\
"gBQWtTIb1Mfz4OaO873SsDrusjkY0aF9pHsweTEQMA4GA1UEChMHUm9vdCBDQTEe\n"\
"MBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0\n"\
"IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2Vy\n"\
"dC5vcmeCAQAwDwYDVR0TAQH/BAUwAwEB/zAyBgNVHR8EKzApMCegJaAjhiFodHRw\n"\
"czovL3d3dy5jYWNlcnQub3JnL3Jldm9rZS5jcmwwMAYJYIZIAYb4QgEEBCMWIWh0\n"\
"dHBzOi8vd3d3LmNhY2VydC5vcmcvcmV2b2tlLmNybDA0BglghkgBhvhCAQgEJxYl\n"\
"aHR0cDovL3d3dy5jYWNlcnQub3JnL2luZGV4LnBocD9pZD0xMDBWBglghkgBhvhC\n"\
"AQ0ESRZHVG8gZ2V0IHlvdXIgb3duIGNlcnRpZmljYXRlIGZvciBGUkVFIGhlYWQg\n"\
"b3ZlciB0byBodHRwOi8vd3d3LmNhY2VydC5vcmcwDQYJKoZIhvcNAQEEBQADggIB\n"\
"ACjH7pyCArpcgBLKNQodgW+JapnM8mgPf6fhjViVPr3yBsOQWqy1YPaZQwGjiHCc\n"\
"nWKdpIevZ1gNMDY75q1I08t0AoZxPuIrA2jxNGJARjtT6ij0rPtmlVOKTV39O9lg\n"\
"18p5aTuxZZKmxoGCXJzN600BiqXfEVWqFcofN8CCmHBh22p8lqOOLlQ+TyGpkO/c\n"\
"gr/c6EWtTZBzCDyUZbAEmXZ/4rzCahWqlwQ3JNgelE5tDlG+1sSPypZt90Pf6DBl\n"\
"Jzt7u0NDY8RD97LsaMzhGY4i+5jhe1o+ATc7iwiwovOVThrLm82asduycPAtStvY\n"\
"sONvRUgzEv/+PDIqVPfE94rwiCPCR/5kenHA0R6mY7AHfqQv0wGP3J8rtsYIqQ+T\n"\
"SCX8Ev2fQtzzxD72V7DX3WnRBnc0CkvSyqD/HMaMyRa+xMwyN2hzXwj7UfdJUzYF\n"\
"CpUCTPJ5GhD22Dp1nPMd8aINcGeGG7MW9S/lpOt5hvk9C8JzC6WZrG/8Z7jlLwum\n"\
"GCSNe9FINSkYQKyTYOGWhlC0elnYjyELn8+CkcY7v2vcB5G5l1YjqrZslMZIBjzk\n"\
"zk6q5PYvCdxTby78dOs6Y5nCpqyJvKeyRKANihDjbPIky/qbn3BHLt4Ui9SyIAmW\n"\
"omTxJBzcoTWcFbLUvFUufQb1nA5V9FrWk9p2rSVzTMVD\n"\
"-----END CERTIFICATE-----\n";
/* get a BIO */
bio=BIO_new_mem_buf(mypem, -1);
/* use it to read the PEM formatted certificate from memory into an X509
* structure that SSL can use
*/
PEM_read_bio_X509(bio, &cert, 0, NULL);
if(cert == NULL)
printf("PEM_read_bio_X509 failed...\n");
/* get a pointer to the X509 certificate store (which may be empty!) */
store=SSL_CTX_get_cert_store((SSL_CTX *)sslctx);
/* add our certificate to this store */
if(X509_STORE_add_cert(store, cert)==0)
printf("error adding certificate\n");
/* decrease reference counts */
X509_free(cert);
BIO_free(bio);
/* all set to go */
return CURLE_OK;
}
int main(void)
{
CURL *ch;
CURLcode rv;
rv=curl_global_init(CURL_GLOBAL_ALL);
ch=curl_easy_init();
rv=curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
rv=curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
rv=curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
rv=curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
rv=curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, *writefunction);
rv=curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
rv=curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, *writefunction);
rv=curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
rv=curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
rv=curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 1L);
rv=curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
/* first try: retrieve page without cacerts' certificate -> will fail
*/
rv=curl_easy_perform(ch);
if(rv==CURLE_OK)
printf("*** transfer succeeded ***\n");
else
printf("*** transfer failed ***\n");
/* second try: retrieve page using cacerts' certificate -> will succeed
* load the certificate by installing a function doing the nescessary
* "modifications" to the SSL CONTEXT just before link init
*/
rv=curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, *sslctx_function);
rv=curl_easy_perform(ch);
if(rv==CURLE_OK)
printf("*** transfer succeeded ***\n");
else
printf("*** transfer failed ***\n");
curl_easy_cleanup(ch);
curl_global_cleanup();
return rv;
}

90
proxy_c/third-lib/libcurl/docs/examples/certinfo.c
View File

@@ -1,90 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Extract lots of TLS certificate info.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
static size_t wrfu(void *ptr, size_t size, size_t nmemb, void *stream)
{
(void)stream;
(void)ptr;
return size * nmemb;
}
int main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, wrfu);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(curl, CURLOPT_CERTINFO, 1L);
res = curl_easy_perform(curl);
if(!res) {
union {
struct curl_slist *to_info;
struct curl_certinfo *to_certinfo;
} ptr;
ptr.to_info = NULL;
res = curl_easy_getinfo(curl, CURLINFO_CERTINFO, &ptr.to_info);
if(!res && ptr.to_info) {
int i;
printf("%d certs!\n", ptr.to_certinfo->num_of_certs);
for(i = 0; i < ptr.to_certinfo->num_of_certs; i++) {
struct curl_slist *slist;
for(slist = ptr.to_certinfo->certinfo[i]; slist; slist = slist->next)
printf("%s\n", slist->data);
}
}
}
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}

209
proxy_c/third-lib/libcurl/docs/examples/chkspeed.c
View File

@@ -1,209 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show transfer timing info after download completes.
* </DESC>
*/
/* Example source code to show how the callback function can be used to
* download data into a chunk of memory instead of storing it in a file.
* After successful download we use curl_easy_getinfo() calls to get the
* amount of downloaded bytes, the time used for the whole download, and
* the average download speed.
* On Linux you can create the download test files with:
* dd if=/dev/urandom of=file_1M.bin bs=1M count=1
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <curl/curl.h>
#define URL_BASE "http://speedtest.your.domain/"
#define URL_1M URL_BASE "file_1M.bin"
#define URL_2M URL_BASE "file_2M.bin"
#define URL_5M URL_BASE "file_5M.bin"
#define URL_10M URL_BASE "file_10M.bin"
#define URL_20M URL_BASE "file_20M.bin"
#define URL_50M URL_BASE "file_50M.bin"
#define URL_100M URL_BASE "file_100M.bin"
#define CHKSPEED_VERSION "1.0"
static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
{
/* we are not interested in the downloaded bytes itself,
so we only return the size we would have saved ... */
(void)ptr; /* unused */
(void)data; /* unused */
return (size_t)(size * nmemb);
}
int main(int argc, char *argv[])
{
CURL *curl_handle;
CURLcode res;
int prtall = 0, prtsep = 0, prttime = 0;
const char *url = URL_1M;
char *appname = argv[0];
if(argc > 1) {
/* parse input parameters */
for(argc--, argv++; *argv; argc--, argv++) {
if(strncasecmp(*argv, "-", 1) == 0) {
if(strncasecmp(*argv, "-H", 2) == 0) {
fprintf(stderr,
"\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
appname);
exit(1);
}
else if(strncasecmp(*argv, "-V", 2) == 0) {
fprintf(stderr, "\r%s %s - %s\n",
appname, CHKSPEED_VERSION, curl_version());
exit(1);
}
else if(strncasecmp(*argv, "-A", 2) == 0) {
prtall = 1;
}
else if(strncasecmp(*argv, "-X", 2) == 0) {
prtsep = 1;
}
else if(strncasecmp(*argv, "-T", 2) == 0) {
prttime = 1;
}
else if(strncasecmp(*argv, "-M=", 3) == 0) {
long m = strtol((*argv)+3, NULL, 10);
switch(m) {
case 1:
url = URL_1M;
break;
case 2:
url = URL_2M;
break;
case 5:
url = URL_5M;
break;
case 10:
url = URL_10M;
break;
case 20:
url = URL_20M;
break;
case 50:
url = URL_50M;
break;
case 100:
url = URL_100M;
break;
default:
fprintf(stderr, "\r%s: invalid parameter %s\n",
appname, *argv + 3);
exit(1);
}
}
else {
fprintf(stderr, "\r%s: invalid or unknown option %s\n",
appname, *argv);
exit(1);
}
}
else {
url = *argv;
}
}
}
/* print separator line */
if(prtsep) {
printf("-------------------------------------------------\n");
}
/* print localtime */
if(prttime) {
time_t t = time(NULL);
printf("Localtime: %s", ctime(&t));
}
/* init libcurl */
curl_global_init(CURL_GLOBAL_ALL);
/* init the curl session */
curl_handle = curl_easy_init();
/* specify URL to get */
curl_easy_setopt(curl_handle, CURLOPT_URL, url);
/* send all data to this function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
"libcurl-speedchecker/" CHKSPEED_VERSION);
/* get it! */
res = curl_easy_perform(curl_handle);
if(CURLE_OK == res) {
double val;
/* check for bytes downloaded */
res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &val);
if((CURLE_OK == res) && (val>0))
printf("Data downloaded: %0.0f bytes.\n", val);
/* check for total download time */
res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &val);
if((CURLE_OK == res) && (val>0))
printf("Total download time: %0.3f sec.\n", val);
/* check for average download speed */
res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD, &val);
if((CURLE_OK == res) && (val>0))
printf("Average download speed: %0.3f kbyte/sec.\n", val / 1024);
if(prtall) {
/* check for name resolution time */
res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME, &val);
if((CURLE_OK == res) && (val>0))
printf("Name lookup time: %0.3f sec.\n", val);
/* check for connect time */
res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME, &val);
if((CURLE_OK == res) && (val>0))
printf("Connect time: %0.3f sec.\n", val);
}
}
else {
fprintf(stderr, "Error while fetching '%s' : %s\n",
url, curl_easy_strerror(res));
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
/* we're done with libcurl, so clean it up */
curl_global_cleanup();
return 0;
}

139
proxy_c/third-lib/libcurl/docs/examples/cookie_interface.c
View File

@@ -1,139 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Import and export cookies with COOKIELIST.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <curl/curl.h>
static void
print_cookies(CURL *curl)
{
CURLcode res;
struct curl_slist *cookies;
struct curl_slist *nc;
int i;
printf("Cookies, curl knows:\n");
res = curl_easy_getinfo(curl, CURLINFO_COOKIELIST, &cookies);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n",
curl_easy_strerror(res));
exit(1);
}
nc = cookies, i = 1;
while(nc) {
printf("[%d]: %s\n", i, nc->data);
nc = nc->next;
i++;
}
if(i == 1) {
printf("(none)\n");
}
curl_slist_free_all(cookies);
}
int
main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
char nline[256];
curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, ""); /* start cookie engine */
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
return 1;
}
print_cookies(curl);
printf("Erasing curl's knowledge of cookies!\n");
curl_easy_setopt(curl, CURLOPT_COOKIELIST, "ALL");
print_cookies(curl);
printf("-----------------------------------------------\n"
"Setting a cookie \"PREF\" via cookie interface:\n");
#ifdef WIN32
#define snprintf _snprintf
#endif
/* Netscape format cookie */
snprintf(nline, sizeof(nline), "%s\t%s\t%s\t%s\t%lu\t%s\t%s",
".google.com", "TRUE", "/", "FALSE",
(unsigned long)time(NULL) + 31337UL,
"PREF", "hello google, i like you very much!");
res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
curl_easy_strerror(res));
return 1;
}
/* HTTP-header style cookie. If you use the Set-Cookie format and don't
specify a domain then the cookie is sent for any domain and will not be
modified, likely not what you intended. Starting in 7.43.0 any-domain
cookies will not be exported either. For more information refer to the
CURLOPT_COOKIELIST documentation.
*/
snprintf(nline, sizeof(nline),
"Set-Cookie: OLD_PREF=3d141414bf4209321; "
"expires=Sun, 17-Jan-2038 19:14:07 GMT; path=/; domain=.google.com");
res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
if(res != CURLE_OK) {
fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
curl_easy_strerror(res));
return 1;
}
print_cookies(curl);
res = curl_easy_perform(curl);
if(res != CURLE_OK) {
fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
return 1;
}
curl_easy_cleanup(curl);
}
else {
fprintf(stderr, "Curl init failed!\n");
return 1;
}
curl_global_cleanup();
return 0;
}

109
proxy_c/third-lib/libcurl/docs/examples/curlgtk.c
View File

@@ -1,109 +0,0 @@
/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (c) 2000 David Odin (aka DindinX) for MandrakeSoft
*/
/* <DESC>
* use the libcurl in a gtk-threaded application
* </DESC>
*/
#include <stdio.h>
#include <gtk/gtk.h>
#include <curl/curl.h>
GtkWidget *Bar;
size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fwrite(ptr, size, nmemb, stream);
}
size_t my_read_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
{
return fread(ptr, size, nmemb, stream);
}
int my_progress_func(GtkWidget *bar,
double t, /* dltotal */
double d, /* dlnow */
double ultotal,
double ulnow)
{
/* printf("%d / %d (%g %%)\n", d, t, d*100.0/t);*/
gdk_threads_enter();
gtk_progress_set_value(GTK_PROGRESS(bar), d*100.0/t);
gdk_threads_leave();
return 0;
}
void *my_thread(void *ptr)
{
CURL *curl;
CURLcode res;
FILE *outfile;
gchar *url = ptr;
curl = curl_easy_init();
if(curl) {
const char *filename = "test.curl";
outfile = fopen(filename, "wb");
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_read_func);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, Bar);
res = curl_easy_perform(curl);
fclose(outfile);
/* always cleanup */
curl_easy_cleanup(curl);
}
return NULL;
}
int main(int argc, char **argv)
{
GtkWidget *Window, *Frame, *Frame2;
GtkAdjustment *adj;
/* Must initialize libcurl before any threads are started */
curl_global_init(CURL_GLOBAL_ALL);
/* Init thread */
g_thread_init(NULL);
gtk_init(&argc, &argv);
Window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
Frame = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(Frame), GTK_SHADOW_OUT);
gtk_container_add(GTK_CONTAINER(Window), Frame);
Frame2 = gtk_frame_new(NULL);
gtk_frame_set_shadow_type(GTK_FRAME(Frame2), GTK_SHADOW_IN);
gtk_container_add(GTK_CONTAINER(Frame), Frame2);
gtk_container_set_border_width(GTK_CONTAINER(Frame2), 5);
adj = (GtkAdjustment*)gtk_adjustment_new(0, 0, 100, 0, 0, 0);
Bar = gtk_progress_bar_new_with_adjustment(adj);
gtk_container_add(GTK_CONTAINER(Frame2), Bar);
gtk_widget_show_all(Window);
if(!g_thread_create(&my_thread, argv[1], FALSE, NULL) != 0)
g_warning("can't create the thread");
gdk_threads_enter();
gtk_main();
gdk_threads_leave();
return 0;
}

562
proxy_c/third-lib/libcurl/docs/examples/curlx.c
View File

@@ -1,562 +0,0 @@
/*
curlx.c Authors: Peter Sylvester, Jean-Paul Merlin
This is a little program to demonstrate the usage of
- an ssl initialisation callback setting a user key and trustbases
coming from a pkcs12 file
- using an ssl application callback to find a URI in the
certificate presented during ssl session establishment.
*/
/* <DESC>
* demonstrates use of SSL context callback, requires OpenSSL
* </DESC>
*/
/*
* Copyright (c) 2003 The OpenEvidence Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, the following disclaimer,
* and the original OpenSSL and SSLeay Licences below.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions, the following disclaimer
* and the original OpenSSL and SSLeay Licences below in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgments:
* "This product includes software developed by the Openevidence Project
* for use in the OpenEvidence Toolkit. (http://www.openevidence.org/)"
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)"
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com)."
*
* 4. The names "OpenEvidence Toolkit" and "OpenEvidence Project" must not be
* used to endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openevidence-core@openevidence.org.
*
* 5. Products derived from this software may not be called "OpenEvidence"
* nor may "OpenEvidence" appear in their names without prior written
* permission of the OpenEvidence Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgments:
* "This product includes software developed by the OpenEvidence Project
* for use in the OpenEvidence Toolkit (http://www.openevidence.org/)
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)"
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com)."
*
* THIS SOFTWARE IS PROVIDED BY THE OpenEvidence PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenEvidence PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (https://www.openssl.org/)
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include <openssl/x509v3.h>
#include <openssl/x509_vfy.h>
#include <openssl/crypto.h>
#include <openssl/lhash.h>
#include <openssl/objects.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/bio.h>
#include <openssl/ssl.h>
static const char *curlx_usage[]={
"usage: curlx args\n",
" -p12 arg - tia file ",
" -envpass arg - environement variable which content the tia private"
" key password",
" -out arg - output file (response)- default stdout",
" -in arg - input file (request)- default stdin",
" -connect arg - URL of the server for the connection ex:"
" www.openevidence.org",
" -mimetype arg - MIME type for data in ex : application/timestamp-query"
" or application/dvcs -default application/timestamp-query",
" -acceptmime arg - MIME type acceptable for the response ex : "
"application/timestamp-response or application/dvcs -default none",
" -accesstype arg - an Object identifier in an AIA/SIA method, e.g."
" AD_DVCS or ad_timestamping",
NULL
};
/*
./curlx -p12 psy.p12 -envpass XX -in request -verbose -accesstype AD_DVCS
-mimetype application/dvcs -acceptmime application/dvcs -out response
*/
/*
* We use this ZERO_NULL to avoid picky compiler warnings,
* when assigning a NULL pointer to a function pointer var.
*/
#define ZERO_NULL 0
/* This is a context that we pass to all callbacks */
typedef struct sslctxparm_st {
unsigned char *p12file;
const char *pst;
PKCS12 *p12;
EVP_PKEY *pkey;
X509 *usercert;
STACK_OF(X509) * ca;
CURL *curl;
BIO *errorbio;
int accesstype;
int verbose;
} sslctxparm;
/* some helper function. */
static char *ia5string(ASN1_IA5STRING *ia5)
{
char *tmp;
if(!ia5 || !ia5->length)
return NULL;
tmp = OPENSSL_malloc(ia5->length + 1);
memcpy(tmp, ia5->data, ia5->length);
tmp[ia5->length] = 0;
return tmp;
}
/* A conveniance routine to get an access URI. */
static unsigned char *my_get_ext(X509 *cert, const int type,
int extensiontype)
{
int i;
STACK_OF(ACCESS_DESCRIPTION) * accessinfo;
accessinfo = X509_get_ext_d2i(cert, extensiontype, NULL, NULL);
if(!sk_ACCESS_DESCRIPTION_num(accessinfo))
return NULL;
for(i = 0; i < sk_ACCESS_DESCRIPTION_num(accessinfo); i++) {
ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(accessinfo, i);
if(OBJ_obj2nid(ad->method) == type) {
if(ad->location->type == GEN_URI) {
return ia5string(ad->location->d.ia5);
}
return NULL;
}
}
return NULL;
}
/* This is an application verification call back, it does not
perform any addition verification but tries to find a URL
in the presented certificat. If found, this will become
the URL to be used in the POST.
*/
static int ssl_app_verify_callback(X509_STORE_CTX *ctx, void *arg)
{
sslctxparm * p = (sslctxparm *) arg;
int ok;
if(p->verbose > 2)
BIO_printf(p->errorbio, "entering ssl_app_verify_callback\n");
if((ok= X509_verify_cert(ctx)) && ctx->cert) {
unsigned char *accessinfo;
if(p->verbose > 1)
X509_print_ex(p->errorbio, ctx->cert, 0, 0);
accessinfo = my_get_ext(ctx->cert, p->accesstype, NID_sinfo_access);
if(accessinfo) {
if(p->verbose)
BIO_printf(p->errorbio, "Setting URL from SIA to: %s\n", accessinfo);
curl_easy_setopt(p->curl, CURLOPT_URL, accessinfo);
}
else if(accessinfo = my_get_ext(ctx->cert, p->accesstype,
NID_info_access)) {
if(p->verbose)
BIO_printf(p->errorbio, "Setting URL from AIA to: %s\n", accessinfo);
curl_easy_setopt(p->curl, CURLOPT_URL, accessinfo);
}
}
if(p->verbose > 2)
BIO_printf(p->errorbio, "leaving ssl_app_verify_callback with %d\n", ok);
return ok;
}
/* The SSL initialisation callback. The callback sets:
- a private key and certificate
- a trusted ca certificate
- a preferred cipherlist
- an application verification callback (the function above)
*/
static CURLcode sslctxfun(CURL *curl, void *sslctx, void *parm)
{
sslctxparm *p = (sslctxparm *) parm;
SSL_CTX *ctx = (SSL_CTX *) sslctx;
if(!SSL_CTX_use_certificate(ctx, p->usercert)) {
BIO_printf(p->errorbio, "SSL_CTX_use_certificate problem\n");
goto err;
}
if(!SSL_CTX_use_PrivateKey(ctx, p->pkey)) {
BIO_printf(p->errorbio, "SSL_CTX_use_PrivateKey\n");
goto err;
}
if(!SSL_CTX_check_private_key(ctx)) {
BIO_printf(p->errorbio, "SSL_CTX_check_private_key\n");
goto err;
}
SSL_CTX_set_quiet_shutdown(ctx, 1);
SSL_CTX_set_cipher_list(ctx, "RC4-MD5");
SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
X509_STORE_add_cert(SSL_CTX_get_cert_store(ctx),
sk_X509_value(p->ca, sk_X509_num(p->ca)-1));
SSL_CTX_set_verify_depth(ctx, 2);
SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, ZERO_NULL);
SSL_CTX_set_cert_verify_callback(ctx, ssl_app_verify_callback, parm);
return CURLE_OK;
err:
ERR_print_errors(p->errorbio);
return CURLE_SSL_CERTPROBLEM;
}
int main(int argc, char **argv)
{
BIO* in=NULL;
BIO* out=NULL;
char *outfile = NULL;
char *infile = NULL;
int tabLength=100;
char *binaryptr;
char *mimetype;
char *mimetypeaccept=NULL;
char *contenttype;
const char **pp;
unsigned char *hostporturl = NULL;
BIO *p12bio;
char **args = argv + 1;
unsigned char *serverurl;
sslctxparm p;
char *response;
CURLcode res;
struct curl_slist *headers=NULL;
int badarg=0;
binaryptr = malloc(tabLength);
p.verbose = 0;
p.errorbio = BIO_new_fp(stderr, BIO_NOCLOSE);
curl_global_init(CURL_GLOBAL_DEFAULT);
/* we need some more for the P12 decoding */
OpenSSL_add_all_ciphers();
OpenSSL_add_all_digests();
ERR_load_crypto_strings();
while(*args && *args[0] == '-') {
if(!strcmp (*args, "-in")) {
if(args[1]) {
infile=*(++args);
}
else
badarg=1;
}
else if(!strcmp (*args, "-out")) {
if(args[1]) {
outfile=*(++args);
}
else
badarg=1;
}
else if(!strcmp (*args, "-p12")) {
if(args[1]) {
p.p12file = *(++args);
}
else
badarg=1;
}
else if(strcmp(*args, "-envpass") == 0) {
if(args[1]) {
p.pst = getenv(*(++args));
}
else
badarg=1;
}
else if(strcmp(*args, "-connect") == 0) {
if(args[1]) {
hostporturl = *(++args);
}
else
badarg=1;
}
else if(strcmp(*args, "-mimetype") == 0) {
if(args[1]) {
mimetype = *(++args);
}
else
badarg=1;
}
else if(strcmp(*args, "-acceptmime") == 0) {
if(args[1]) {
mimetypeaccept = *(++args);
}
else
badarg=1;
}
else if(strcmp(*args, "-accesstype") == 0) {
if(args[1]) {
p.accesstype = OBJ_obj2nid(OBJ_txt2obj(*++args, 0));
if(p.accesstype == 0)
badarg=1;
}
else
badarg=1;
}
else if(strcmp(*args, "-verbose") == 0) {
p.verbose++;
}
else
badarg=1;
args++;
}
if(mimetype==NULL || mimetypeaccept == NULL)
badarg = 1;
if(badarg) {
for(pp=curlx_usage; (*pp != NULL); pp++)
BIO_printf(p.errorbio, "%s\n", *pp);
BIO_printf(p.errorbio, "\n");
goto err;
}
/* set input */
if((in=BIO_new(BIO_s_file())) == NULL) {
BIO_printf(p.errorbio, "Error setting input bio\n");
goto err;
}
else if(infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE|BIO_FP_TEXT);
else if(BIO_read_filename(in, infile) <= 0) {
BIO_printf(p.errorbio, "Error opening input file %s\n", infile);
BIO_free(in);
goto err;
}
/* set output */
if((out=BIO_new(BIO_s_file())) == NULL) {
BIO_printf(p.errorbio, "Error setting output bio.\n");
goto err;
}
else if(outfile == NULL)
BIO_set_fp(out, stdout, BIO_NOCLOSE|BIO_FP_TEXT);
else if(BIO_write_filename(out, outfile) <= 0) {
BIO_printf(p.errorbio, "Error opening output file %s\n", outfile);
BIO_free(out);
goto err;
}
p.errorbio = BIO_new_fp(stderr, BIO_NOCLOSE);
p.curl = curl_easy_init();
if(!p.curl) {
BIO_printf(p.errorbio, "Cannot init curl lib\n");
goto err;
}
p12bio = BIO_new_file(p.p12file, "rb");
if(!p12bio) {
BIO_printf(p.errorbio, "Error opening P12 file %s\n", p.p12file);
goto err;
}
p.p12 = d2i_PKCS12_bio(p12bio, NULL);
if(!p.p12) {
BIO_printf(p.errorbio, "Cannot decode P12 structure %s\n", p.p12file);
goto err;
}
p.ca= NULL;
if(!(PKCS12_parse (p.p12, p.pst, &(p.pkey), &(p.usercert), &(p.ca) ) )) {
BIO_printf(p.errorbio, "Invalid P12 structure in %s\n", p.p12file);
goto err;
}
if(sk_X509_num(p.ca) <= 0) {
BIO_printf(p.errorbio, "No trustworthy CA given.%s\n", p.p12file);
goto err;
}
if(p.verbose > 1)
X509_print_ex(p.errorbio, p.usercert, 0, 0);
/* determine URL to go */
if(hostporturl) {
size_t len = strlen(hostporturl) + 9;
serverurl = malloc(len);
snprintf(serverurl, len, "https://%s", hostporturl);
}
else if(p.accesstype != 0) { /* see whether we can find an AIA or SIA for a
given access type */
serverurl = my_get_ext(p.usercert, p.accesstype, NID_info_access);
if(!serverurl) {
int j=0;
BIO_printf(p.errorbio, "no service URL in user cert "
"cherching in others certificats\n");
for(j=0; j<sk_X509_num(p.ca); j++) {
serverurl = my_get_ext(sk_X509_value(p.ca, j), p.accesstype,
NID_info_access);
if(serverurl)
break;
serverurl = my_get_ext(sk_X509_value(p.ca, j), p.accesstype,
NID_sinfo_access);
if(serverurl)
break;
}
}
}
if(!serverurl) {
BIO_printf(p.errorbio, "no service URL in certificats,"
" check '-accesstype (AD_DVCS | ad_timestamping)'"
" or use '-connect'\n");
goto err;
}
if(p.verbose)
BIO_printf(p.errorbio, "Service URL: <%s>\n", serverurl);
curl_easy_setopt(p.curl, CURLOPT_URL, serverurl);
/* Now specify the POST binary data */
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDS, binaryptr);
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDSIZE, (long)tabLength);
/* pass our list of custom made headers */
contenttype = malloc(15+strlen(mimetype));
snprintf(contenttype, 15+strlen(mimetype), "Content-type: %s", mimetype);
headers = curl_slist_append(headers, contenttype);
curl_easy_setopt(p.curl, CURLOPT_HTTPHEADER, headers);
if(p.verbose)
BIO_printf(p.errorbio, "Service URL: <%s>\n", serverurl);
{
FILE *outfp;
BIO_get_fp(out, &outfp);
curl_easy_setopt(p.curl, CURLOPT_WRITEDATA, outfp);
}
res = curl_easy_setopt(p.curl, CURLOPT_SSL_CTX_FUNCTION, sslctxfun);
if(res != CURLE_OK)
BIO_printf(p.errorbio, "%d %s=%d %d\n", __LINE__,
"CURLOPT_SSL_CTX_FUNCTION", CURLOPT_SSL_CTX_FUNCTION, res);
curl_easy_setopt(p.curl, CURLOPT_SSL_CTX_DATA, &p);
{
int lu; int i=0;
while((lu = BIO_read(in, &binaryptr[i], tabLength-i)) >0) {
i+=lu;
if(i== tabLength) {
tabLength+=100;
binaryptr=realloc(binaryptr, tabLength); /* should be more careful */
}
}
tabLength = i;
}
/* Now specify the POST binary data */
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDS, binaryptr);
curl_easy_setopt(p.curl, CURLOPT_POSTFIELDSIZE, (long)tabLength);
/* Perform the request, res will get the return code */
BIO_printf(p.errorbio, "%d %s %d\n", __LINE__, "curl_easy_perform",
res = curl_easy_perform(p.curl));
{
int result =curl_easy_getinfo(p.curl, CURLINFO_CONTENT_TYPE, &response);
if(mimetypeaccept && p.verbose)
if(!strcmp(mimetypeaccept, response))
BIO_printf(p.errorbio, "the response has a correct mimetype : %s\n",
response);
else
BIO_printf(p.errorbio, "the response doesn\'t have an acceptable "
"mime type, it is %s instead of %s\n",
response, mimetypeaccept);
}
/*** code d'erreur si accept mime ***, egalement code return HTTP != 200 ***/
/* free the header list*/
curl_slist_free_all(headers);
/* always cleanup */
curl_easy_cleanup(p.curl);
BIO_free(in);
BIO_free(out);
return (EXIT_SUCCESS);
err: BIO_printf(p.errorbio, "error");
exit(1);
}

151
proxy_c/third-lib/libcurl/docs/examples/debug.c
View File

@@ -1,151 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show how CURLOPT_DEBUGFUNCTION can be used.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
struct data {
char trace_ascii; /* 1 or 0 */
};
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %10.10ld bytes (0x%8.8lx)\n",
text, (long)size, (long)size);
for(i=0; i<size; i+= width) {
fprintf(stream, "%4.4lx: ", (long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stream, "%02x ", ptr[i+c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stream, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
struct data *config = (struct data *)userp;
const char *text;
(void)handle; /* prevent compiler warning */
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, stderr, (unsigned char *)data, size, config->trace_ascii);
return 0;
}
int main(void)
{
CURL *curl;
CURLcode res;
struct data config;
config.trace_ascii = 1; /* enable ascii tracing */
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &config);
/* the DEBUGFUNCTION has no effect until we enable VERBOSE */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* example.com is redirected, so we tell libcurl to follow redirection */
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}

450
proxy_c/third-lib/libcurl/docs/examples/evhiperfifo.c
View File

@@ -1,450 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket interface together with libev
* </DESC>
*/
/* Example application source code using the multi socket interface to
* download many files at once.
*
* This example features the same basic functionality as hiperfifo.c does,
* but this uses libev instead of libevent.
*
* Written by Jeff Pohlmeyer, converted to use libev by Markus Koetter
Requires libev and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
Note:
For the sake of simplicity, URL length is limited to 1023 char's !
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <sys/poll.h>
#include <curl/curl.h>
#include <ev.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#define DPRINT(x...) printf(x)
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
struct ev_loop *loop;
struct ev_io fifo_event;
struct ev_timer timer_event;
CURLM *multi;
int still_running;
FILE *input;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo
{
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
struct ev_io ev;
int evset;
GlobalInfo *global;
} SockInfo;
static void timer_cb(EV_P_ struct ev_timer *w, int revents);
/* Update the event timer after curl_multi library calls */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
DPRINT("%s %li\n", __PRETTY_FUNCTION__, timeout_ms);
ev_timer_stop(g->loop, &g->timer_event);
if(timeout_ms > 0) {
double t = timeout_ms / 1000;
ev_timer_init(&g->timer_event, timer_cb, t, 0.);
ev_timer_start(g->loop, &g->timer_event);
}
else
timer_cb(g->loop, &g->timer_event, 0);
return 0;
}
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
case CURLM_BAD_HANDLE:
s="CURLM_BAD_HANDLE";
break;
case CURLM_BAD_EASY_HANDLE:
s="CURLM_BAD_EASY_HANDLE";
break;
case CURLM_OUT_OF_MEMORY:
s="CURLM_OUT_OF_MEMORY";
break;
case CURLM_INTERNAL_ERROR:
s="CURLM_INTERNAL_ERROR";
break;
case CURLM_UNKNOWN_OPTION:
s="CURLM_UNKNOWN_OPTION";
break;
case CURLM_LAST:
s="CURLM_LAST";
break;
default:
s="CURLM_unknown";
break;
case CURLM_BAD_SOCKET:
s="CURLM_BAD_SOCKET";
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by libevent when we get action on a multi socket */
static void event_cb(EV_P_ struct ev_io *w, int revents)
{
DPRINT("%s w %p revents %i\n", __PRETTY_FUNCTION__, w, revents);
GlobalInfo *g = (GlobalInfo*) w->data;
CURLMcode rc;
int action = (revents&EV_READ?CURL_POLL_IN:0)|
(revents&EV_WRITE?CURL_POLL_OUT:0);
rc = curl_multi_socket_action(g->multi, w->fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0) {
fprintf(MSG_OUT, "last transfer done, kill timeout\n");
ev_timer_stop(g->loop, &g->timer_event);
}
}
/* Called by libevent when our timeout expires */
static void timer_cb(EV_P_ struct ev_timer *w, int revents)
{
DPRINT("%s w %p revents %i\n", __PRETTY_FUNCTION__, w, revents);
GlobalInfo *g = (GlobalInfo *)w->data;
CURLMcode rc;
rc = curl_multi_socket_action(g->multi, CURL_SOCKET_TIMEOUT, 0,
&g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f, GlobalInfo *g)
{
printf("%s \n", __PRETTY_FUNCTION__);
if(f) {
if(f->evset)
ev_io_stop(g->loop, &f->ev);
free(f);
}
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
printf("%s \n", __PRETTY_FUNCTION__);
int kind = (act&CURL_POLL_IN?EV_READ:0)|(act&CURL_POLL_OUT?EV_WRITE:0);
f->sockfd = s;
f->action = act;
f->easy = e;
if(f->evset)
ev_io_stop(g->loop, &f->ev);
ev_io_init(&f->ev, event_cb, f->sockfd, kind);
f->ev.data = g;
f->evset=1;
ev_io_start(g->loop, &f->ev);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = calloc(sizeof(SockInfo), 1);
fdp->global = g;
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
DPRINT("%s e %p s %i what %i cbp %p sockp %p\n",
__PRETTY_FUNCTION__, e, s, what, cbp, sockp);
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE"};
fprintf(MSG_OUT,
"socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
fprintf(MSG_OUT, "\n");
remsock(fdp, g);
}
else {
if(!fdp) {
fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
addsock(s, e, what, g);
}
else {
fprintf(MSG_OUT,
"Changing action from %s to %s\n",
whatstr[fdp->action], whatstr[what]);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
ConnInfo *conn = (ConnInfo*) data;
(void)ptr;
(void)conn;
return realsize;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = calloc(1, sizeof(ConnInfo));
memset(conn, 0, sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 3L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 10L);
fprintf(MSG_OUT,
"Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called whenever data is received from the fifo */
static void fifo_cb(EV_P_ struct ev_io *w, int revents)
{
char s[1024];
long int rv=0;
int n=0;
GlobalInfo *g = (GlobalInfo *)w->data;
do {
s[0]='\0';
rv=fscanf(g->input, "%1023s%n", s, &n);
s[n]='\0';
if(n && s[0]) {
new_conn(s, g); /* if we read a URL, go get it! */
}
else
break;
} while(rv != EOF);
}
/* Create a named pipe and tell libevent to monitor it */
static int init_fifo(GlobalInfo *g)
{
struct stat st;
static const char *fifo = "hiper.fifo";
curl_socket_t sockfd;
fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(sockfd == -1) {
perror("open");
exit(1);
}
g->input = fdopen(sockfd, "r");
fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
ev_io_init(&g->fifo_event, fifo_cb, sockfd, EV_READ);
ev_io_start(g->loop, &g->fifo_event);
return (0);
}
int main(int argc, char **argv)
{
GlobalInfo g;
CURLMcode rc;
(void)argc;
(void)argv;
memset(&g, 0, sizeof(GlobalInfo));
g.loop = ev_default_loop(0);
init_fifo(&g);
g.multi = curl_multi_init();
ev_timer_init(&g.timer_event, timer_cb, 0., 0.);
g.timer_event.data = &g;
g.fifo_event.data = &g;
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
ev_loop(g.loop, 0);
curl_multi_cleanup(g.multi);
return 0;
}

155
proxy_c/third-lib/libcurl/docs/examples/externalsocket.c
View File

@@ -1,155 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* An example demonstrating how an application can pass in a custom
* socket to libcurl to use. This example also handles the connect itself.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <curl/curl.h>
#ifdef WIN32
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#define close closesocket
#else
#include <sys/types.h> /* socket types */
#include <sys/socket.h> /* socket definitions */
#include <netinet/in.h>
#include <arpa/inet.h> /* inet (3) funtions */
#include <unistd.h> /* misc. Unix functions */
#endif
#include <errno.h>
/* The IP address and port number to connect to */
#define IPADDR "127.0.0.1"
#define PORTNUM 80
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif
static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
{
size_t written = fwrite(ptr, size, nmemb, (FILE *)stream);
return written;
}
static curl_socket_t opensocket(void *clientp,
curlsocktype purpose,
struct curl_sockaddr *address)
{
curl_socket_t sockfd;
(void)purpose;
(void)address;
sockfd = *(curl_socket_t *)clientp;
/* the actual externally set socket is passed in via the OPENSOCKETDATA
option */
return sockfd;
}
static int sockopt_callback(void *clientp, curl_socket_t curlfd,
curlsocktype purpose)
{
(void)clientp;
(void)curlfd;
(void)purpose;
/* This return code was added in libcurl 7.21.5 */
return CURL_SOCKOPT_ALREADY_CONNECTED;
}
int main(void)
{
CURL *curl;
CURLcode res;
struct sockaddr_in servaddr; /* socket address structure */
curl_socket_t sockfd;
#ifdef WIN32
WSADATA wsaData;
int initwsa = WSAStartup(MAKEWORD(2, 0), &wsaData);
if(initwsa != 0) {
printf("WSAStartup failed: %d\n", initwsa);
return 1;
}
#endif
curl = curl_easy_init();
if(curl) {
/*
* Note that libcurl will internally think that you connect to the host
* and port that you specify in the URL option.
*/
curl_easy_setopt(curl, CURLOPT_URL, "http://99.99.99.99:9999");
/* Create the socket "manually" */
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if(sockfd == CURL_SOCKET_BAD) {
printf("Error creating listening socket.\n");
return 3;
}
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(PORTNUM);
servaddr.sin_addr.s_addr = inet_addr(IPADDR);
if(INADDR_NONE == servaddr.sin_addr.s_addr)
return 2;
if(connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) ==
-1) {
close(sockfd);
printf("client error: connect: %s\n", strerror(errno));
return 1;
}
/* no progress meter please */
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
/* call this function to get a socket */
curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);
/* call this function to set options for the socket */
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
if(res) {
printf("libcurl error: %d\n", res);
return 4;
}
}
return 0;
}

87
proxy_c/third-lib/libcurl/docs/examples/fileupload.c
View File

@@ -1,87 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Upload to a file:// URL
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(void)
{
CURL *curl;
CURLcode res;
struct stat file_info;
double speed_upload, total_time;
FILE *fd;
fd = fopen("debugit", "rb"); /* open file to upload */
if(!fd)
return 1; /* can't continue */
/* to get the file size */
if(fstat(fileno(fd), &file_info) != 0)
return 1; /* can't continue */
curl = curl_easy_init();
if(curl) {
/* upload to this place */
curl_easy_setopt(curl, CURLOPT_URL,
"file:///home/dast/src/curl/debug/new");
/* tell it to "upload" to the URL */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* set where to read from (on Windows you need to use READFUNCTION too) */
curl_easy_setopt(curl, CURLOPT_READDATA, fd);
/* and give the size of the upload (optional) */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* enable verbose for easier tracing */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/* now extract transfer info */
curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD, &speed_upload);
curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME, &total_time);
fprintf(stderr, "Speed: %.3f bytes/sec during %.3f seconds\n",
speed_upload, total_time);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(fd);
return 0;
}

547
proxy_c/third-lib/libcurl/docs/examples/fopen.c
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@@ -1,547 +0,0 @@
/*****************************************************************************
*
* This example source code introduces a c library buffered I/O interface to
* URL reads it supports fopen(), fread(), fgets(), feof(), fclose(),
* rewind(). Supported functions have identical prototypes to their normal c
* lib namesakes and are preceaded by url_ .
*
* Using this code you can replace your program's fopen() with url_fopen()
* and fread() with url_fread() and it become possible to read remote streams
* instead of (only) local files. Local files (ie those that can be directly
* fopened) will drop back to using the underlying clib implementations
*
* See the main() function at the bottom that shows an app that retrives from a
* specified url using fgets() and fread() and saves as two output files.
*
* Copyright (c) 2003 Simtec Electronics
*
* Re-implemented by Vincent Sanders <vince@kyllikki.org> with extensive
* reference to original curl example code
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This example requires libcurl 7.9.7 or later.
*/
/* <DESC>
* implements an fopen() abstraction allowing reading from URLs
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#ifndef WIN32
# include <sys/time.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <curl/curl.h>
enum fcurl_type_e {
CFTYPE_NONE=0,
CFTYPE_FILE=1,
CFTYPE_CURL=2
};
struct fcurl_data
{
enum fcurl_type_e type; /* type of handle */
union {
CURL *curl;
FILE *file;
} handle; /* handle */
char *buffer; /* buffer to store cached data*/
size_t buffer_len; /* currently allocated buffers length */
size_t buffer_pos; /* end of data in buffer*/
int still_running; /* Is background url fetch still in progress */
};
typedef struct fcurl_data URL_FILE;
/* exported functions */
URL_FILE *url_fopen(const char *url, const char *operation);
int url_fclose(URL_FILE *file);
int url_feof(URL_FILE *file);
size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file);
char *url_fgets(char *ptr, size_t size, URL_FILE *file);
void url_rewind(URL_FILE *file);
/* we use a global one for convenience */
CURLM *multi_handle;
/* curl calls this routine to get more data */
static size_t write_callback(char *buffer,
size_t size,
size_t nitems,
void *userp)
{
char *newbuff;
size_t rembuff;
URL_FILE *url = (URL_FILE *)userp;
size *= nitems;
rembuff=url->buffer_len - url->buffer_pos; /* remaining space in buffer */
if(size > rembuff) {
/* not enough space in buffer */
newbuff=realloc(url->buffer, url->buffer_len + (size - rembuff));
if(newbuff==NULL) {
fprintf(stderr, "callback buffer grow failed\n");
size=rembuff;
}
else {
/* realloc succeeded increase buffer size*/
url->buffer_len+=size - rembuff;
url->buffer=newbuff;
}
}
memcpy(&url->buffer[url->buffer_pos], buffer, size);
url->buffer_pos += size;
return size;
}
/* use to attempt to fill the read buffer up to requested number of bytes */
static int fill_buffer(URL_FILE *file, size_t want)
{
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
struct timeval timeout;
int rc;
CURLMcode mc; /* curl_multi_fdset() return code */
/* only attempt to fill buffer if transactions still running and buffer
* doesn't exceed required size already
*/
if((!file->still_running) || (file->buffer_pos > want))
return 0;
/* attempt to fill buffer */
do {
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to fail on */
timeout.tv_sec = 60; /* 1 minute */
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &file->still_running);
break;
}
} while(file->still_running && (file->buffer_pos < want));
return 1;
}
/* use to remove want bytes from the front of a files buffer */
static int use_buffer(URL_FILE *file, size_t want)
{
/* sort out buffer */
if((file->buffer_pos - want) <=0) {
/* ditch buffer - write will recreate */
free(file->buffer);
file->buffer=NULL;
file->buffer_pos=0;
file->buffer_len=0;
}
else {
/* move rest down make it available for later */
memmove(file->buffer,
&file->buffer[want],
(file->buffer_pos - want));
file->buffer_pos -= want;
}
return 0;
}
URL_FILE *url_fopen(const char *url, const char *operation)
{
/* this code could check for URLs or types in the 'url' and
basically use the real fopen() for standard files */
URL_FILE *file;
(void)operation;
file = malloc(sizeof(URL_FILE));
if(!file)
return NULL;
memset(file, 0, sizeof(URL_FILE));
if((file->handle.file=fopen(url, operation)))
file->type = CFTYPE_FILE; /* marked as URL */
else {
file->type = CFTYPE_CURL; /* marked as URL */
file->handle.curl = curl_easy_init();
curl_easy_setopt(file->handle.curl, CURLOPT_URL, url);
curl_easy_setopt(file->handle.curl, CURLOPT_WRITEDATA, file);
curl_easy_setopt(file->handle.curl, CURLOPT_VERBOSE, 0L);
curl_easy_setopt(file->handle.curl, CURLOPT_WRITEFUNCTION, write_callback);
if(!multi_handle)
multi_handle = curl_multi_init();
curl_multi_add_handle(multi_handle, file->handle.curl);
/* lets start the fetch */
curl_multi_perform(multi_handle, &file->still_running);
if((file->buffer_pos == 0) && (!file->still_running)) {
/* if still_running is 0 now, we should return NULL */
/* make sure the easy handle is not in the multi handle anymore */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* cleanup */
curl_easy_cleanup(file->handle.curl);
free(file);
file = NULL;
}
}
return file;
}
int url_fclose(URL_FILE *file)
{
int ret=0;/* default is good return */
switch(file->type) {
case CFTYPE_FILE:
ret=fclose(file->handle.file); /* passthrough */
break;
case CFTYPE_CURL:
/* make sure the easy handle is not in the multi handle anymore */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* cleanup */
curl_easy_cleanup(file->handle.curl);
break;
default: /* unknown or supported type - oh dear */
ret=EOF;
errno=EBADF;
break;
}
free(file->buffer);/* free any allocated buffer space */
free(file);
return ret;
}
int url_feof(URL_FILE *file)
{
int ret=0;
switch(file->type) {
case CFTYPE_FILE:
ret=feof(file->handle.file);
break;
case CFTYPE_CURL:
if((file->buffer_pos == 0) && (!file->still_running))
ret = 1;
break;
default: /* unknown or supported type - oh dear */
ret=-1;
errno=EBADF;
break;
}
return ret;
}
size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file)
{
size_t want;
switch(file->type) {
case CFTYPE_FILE:
want=fread(ptr, size, nmemb, file->handle.file);
break;
case CFTYPE_CURL:
want = nmemb * size;
fill_buffer(file, want);
/* check if theres data in the buffer - if not fill_buffer()
* either errored or EOF */
if(!file->buffer_pos)
return 0;
/* ensure only available data is considered */
if(file->buffer_pos < want)
want = file->buffer_pos;
/* xfer data to caller */
memcpy(ptr, file->buffer, want);
use_buffer(file, want);
want = want / size; /* number of items */
break;
default: /* unknown or supported type - oh dear */
want=0;
errno=EBADF;
break;
}
return want;
}
char *url_fgets(char *ptr, size_t size, URL_FILE *file)
{
size_t want = size - 1;/* always need to leave room for zero termination */
size_t loop;
switch(file->type) {
case CFTYPE_FILE:
ptr = fgets(ptr, (int)size, file->handle.file);
break;
case CFTYPE_CURL:
fill_buffer(file, want);
/* check if theres data in the buffer - if not fill either errored or
* EOF */
if(!file->buffer_pos)
return NULL;
/* ensure only available data is considered */
if(file->buffer_pos < want)
want = file->buffer_pos;
/*buffer contains data */
/* look for newline or eof */
for(loop=0;loop < want;loop++) {
if(file->buffer[loop] == '\n') {
want=loop+1;/* include newline */
break;
}
}
/* xfer data to caller */
memcpy(ptr, file->buffer, want);
ptr[want]=0;/* allways null terminate */
use_buffer(file, want);
break;
default: /* unknown or supported type - oh dear */
ptr=NULL;
errno=EBADF;
break;
}
return ptr;/*success */
}
void url_rewind(URL_FILE *file)
{
switch(file->type) {
case CFTYPE_FILE:
rewind(file->handle.file); /* passthrough */
break;
case CFTYPE_CURL:
/* halt transaction */
curl_multi_remove_handle(multi_handle, file->handle.curl);
/* restart */
curl_multi_add_handle(multi_handle, file->handle.curl);
/* ditch buffer - write will recreate - resets stream pos*/
free(file->buffer);
file->buffer=NULL;
file->buffer_pos=0;
file->buffer_len=0;
break;
default: /* unknown or supported type - oh dear */
break;
}
}
#define FGETSFILE "fgets.test"
#define FREADFILE "fread.test"
#define REWINDFILE "rewind.test"
/* Small main program to retrive from a url using fgets and fread saving the
* output to two test files (note the fgets method will corrupt binary files if
* they contain 0 chars */
int main(int argc, char *argv[])
{
URL_FILE *handle;
FILE *outf;
size_t nread;
char buffer[256];
const char *url;
if(argc < 2)
url="http://192.168.7.3/testfile";/* default to testurl */
else
url=argv[1];/* use passed url */
/* copy from url line by line with fgets */
outf=fopen(FGETSFILE, "wb+");
if(!outf) {
perror("couldn't open fgets output file\n");
return 1;
}
handle = url_fopen(url, "r");
if(!handle) {
printf("couldn't url_fopen() %s\n", url);
fclose(outf);
return 2;
}
while(!url_feof(handle)) {
url_fgets(buffer, sizeof(buffer), handle);
fwrite(buffer, 1, strlen(buffer), outf);
}
url_fclose(handle);
fclose(outf);
/* Copy from url with fread */
outf=fopen(FREADFILE, "wb+");
if(!outf) {
perror("couldn't open fread output file\n");
return 1;
}
handle = url_fopen("testfile", "r");
if(!handle) {
printf("couldn't url_fopen() testfile\n");
fclose(outf);
return 2;
}
do {
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
} while(nread);
url_fclose(handle);
fclose(outf);
/* Test rewind */
outf=fopen(REWINDFILE, "wb+");
if(!outf) {
perror("couldn't open fread output file\n");
return 1;
}
handle = url_fopen("testfile", "r");
if(!handle) {
printf("couldn't url_fopen() testfile\n");
fclose(outf);
return 2;
}
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
url_rewind(handle);
buffer[0]='\n';
fwrite(buffer, 1, 1, outf);
nread = url_fread(buffer, 1, sizeof(buffer), handle);
fwrite(buffer, 1, nread, outf);
url_fclose(handle);
fclose(outf);
return 0;/* all done */
}

152
proxy_c/third-lib/libcurl/docs/examples/ftp-wildcard.c
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@@ -1,152 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* FTP wildcard pattern matching
* </DESC>
*/
#include <curl/curl.h>
#include <stdio.h>
struct callback_data {
FILE *output;
};
static long file_is_coming(struct curl_fileinfo *finfo,
struct callback_data *data,
int remains);
static long file_is_downloaded(struct callback_data *data);
static size_t write_it(char *buff, size_t size, size_t nmemb,
void *cb_data);
int main(int argc, char **argv)
{
int rc = CURLE_OK;
/* curl easy handle */
CURL *handle;
/* help data */
struct callback_data data = { 0 };
/* global initialization */
rc = curl_global_init(CURL_GLOBAL_ALL);
if(rc)
return rc;
/* initialization of easy handle */
handle = curl_easy_init();
if(!handle) {
curl_global_cleanup();
return CURLE_OUT_OF_MEMORY;
}
/* turn on wildcard matching */
curl_easy_setopt(handle, CURLOPT_WILDCARDMATCH, 1L);
/* callback is called before download of concrete file started */
curl_easy_setopt(handle, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);
/* callback is called after data from the file have been transferred */
curl_easy_setopt(handle, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);
/* this callback will write contents into files */
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, write_it);
/* put transfer data into callbacks */
curl_easy_setopt(handle, CURLOPT_CHUNK_DATA, &data);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, &data);
/* curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L); */
/* set an URL containing wildcard pattern (only in the last part) */
if(argc == 2)
curl_easy_setopt(handle, CURLOPT_URL, argv[1]);
else
curl_easy_setopt(handle, CURLOPT_URL, "ftp://example.com/test/*");
/* and start transfer! */
rc = curl_easy_perform(handle);
curl_easy_cleanup(handle);
curl_global_cleanup();
return rc;
}
static long file_is_coming(struct curl_fileinfo *finfo,
struct callback_data *data,
int remains)
{
printf("%3d %40s %10luB ", remains, finfo->filename,
(unsigned long)finfo->size);
switch(finfo->filetype) {
case CURLFILETYPE_DIRECTORY:
printf(" DIR\n");
break;
case CURLFILETYPE_FILE:
printf("FILE ");
break;
default:
printf("OTHER\n");
break;
}
if(finfo->filetype == CURLFILETYPE_FILE) {
/* do not transfer files >= 50B */
if(finfo->size > 50) {
printf("SKIPPED\n");
return CURL_CHUNK_BGN_FUNC_SKIP;
}
data->output = fopen(finfo->filename, "wb");
if(!data->output) {
return CURL_CHUNK_BGN_FUNC_FAIL;
}
}
return CURL_CHUNK_BGN_FUNC_OK;
}
static long file_is_downloaded(struct callback_data *data)
{
if(data->output) {
printf("DOWNLOADED\n");
fclose(data->output);
data->output = 0x0;
}
return CURL_CHUNK_END_FUNC_OK;
}
static size_t write_it(char *buff, size_t size, size_t nmemb,
void *cb_data)
{
struct callback_data *data = cb_data;
size_t written = 0;
if(data->output)
written = fwrite(buff, size, nmemb, data->output);
else
/* listing output */
written = fwrite(buff, size, nmemb, stdout);
return written;
}

92
proxy_c/third-lib/libcurl/docs/examples/ftpget.c
View File

@@ -1,92 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Get a single file from an FTP server.
* </DESC>
*/
struct FtpFile {
const char *filename;
FILE *stream;
};
static size_t my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
{
struct FtpFile *out=(struct FtpFile *)stream;
if(out && !out->stream) {
/* open file for writing */
out->stream=fopen(out->filename, "wb");
if(!out->stream)
return -1; /* failure, can't open file to write */
}
return fwrite(buffer, size, nmemb, out->stream);
}
int main(void)
{
CURL *curl;
CURLcode res;
struct FtpFile ftpfile={
"curl.tar.gz", /* name to store the file as if successful */
NULL
};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
/*
* You better replace the URL with one that works!
*/
curl_easy_setopt(curl, CURLOPT_URL,
"ftp://ftp.example.com/curl/curl-7.9.2.tar.gz");
/* Define our callback to get called when there's data to be written */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
/* Set a pointer to our struct to pass to the callback */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
/* Switch on full protocol/debug output */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
if(CURLE_OK != res) {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
}
if(ftpfile.stream)
fclose(ftpfile.stream); /* close the local file */
curl_global_cleanup();
return 0;
}

91
proxy_c/third-lib/libcurl/docs/examples/ftpgetinfo.c
View File

@@ -1,91 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* <DESC>
* Checks a single file's size and mtime from an FTP server.
* </DESC>
*/
static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
{
(void)ptr;
(void)data;
/* we are not interested in the headers itself,
so we only return the size we would have saved ... */
return (size_t)(size * nmemb);
}
int main(void)
{
char ftpurl[] = "ftp://ftp.example.com/gnu/binutils/binutils-2.19.1.tar.bz2";
CURL *curl;
CURLcode res;
long filetime = -1;
double filesize = 0.0;
const char *filename = strrchr(ftpurl, '/') + 1;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
/* No download if the file */
curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
/* Ask for filetime */
curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
/* No header output: TODO 14.1 http-style HEAD output for ftp */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
/* Switch on full protocol/debug output */
/* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
/* https://curl.haxx.se/libcurl/c/curl_easy_getinfo.html */
res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
if((CURLE_OK == res) && (filetime >= 0)) {
time_t file_time = (time_t)filetime;
printf("filetime %s: %s", filename, ctime(&file_time));
}
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD,
&filesize);
if((CURLE_OK == res) && (filesize>0.0))
printf("filesize %s: %0.0f bytes\n", filename, filesize);
}
else {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}

77
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@@ -1,77 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Similar to ftpget.c but also stores the received response-lines
* in a separate file using our own callback!
* </DESC>
*/
static size_t
write_response(void *ptr, size_t size, size_t nmemb, void *data)
{
FILE *writehere = (FILE *)data;
return fwrite(ptr, size, nmemb, writehere);
}
#define FTPBODY "ftp-list"
#define FTPHEADERS "ftp-responses"
int main(void)
{
CURL *curl;
CURLcode res;
FILE *ftpfile;
FILE *respfile;
/* local file name to store the file as */
ftpfile = fopen(FTPBODY, "wb"); /* b is binary, needed on win32 */
/* local file name to store the FTP server's response lines in */
respfile = fopen(FTPHEADERS, "wb"); /* b is binary, needed on win32 */
curl = curl_easy_init();
if(curl) {
/* Get a file listing from sunet */
curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.example.com/");
curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile);
/* If you intend to use this on windows with a libcurl DLL, you must use
CURLOPT_WRITEFUNCTION as well */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_response);
curl_easy_setopt(curl, CURLOPT_HEADERDATA, respfile);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(ftpfile); /* close the local file */
fclose(respfile); /* close the response file */
return 0;
}

99
proxy_c/third-lib/libcurl/docs/examples/ftpsget.c
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@@ -1,99 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <curl/curl.h>
/* <DESC>
* Get a single file from an FTPS server.
* </DESC>
*/
struct FtpFile {
const char *filename;
FILE *stream;
};
static size_t my_fwrite(void *buffer, size_t size, size_t nmemb,
void *stream)
{
struct FtpFile *out=(struct FtpFile *)stream;
if(out && !out->stream) {
/* open file for writing */
out->stream=fopen(out->filename, "wb");
if(!out->stream)
return -1; /* failure, can't open file to write */
}
return fwrite(buffer, size, nmemb, out->stream);
}
int main(void)
{
CURL *curl;
CURLcode res;
struct FtpFile ftpfile={
"yourfile.bin", /* name to store the file as if successful */
NULL
};
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
/*
* You better replace the URL with one that works! Note that we use an
* FTP:// URL with standard explicit FTPS. You can also do FTPS:// URLs if
* you want to do the rarer kind of transfers: implicit.
*/
curl_easy_setopt(curl, CURLOPT_URL,
"ftp://user@server/home/user/file.txt");
/* Define our callback to get called when there's data to be written */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
/* Set a pointer to our struct to pass to the callback */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
/* We activate SSL and we require it for both control and data */
curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
/* Switch on full protocol/debug output */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
if(CURLE_OK != res) {
/* we failed */
fprintf(stderr, "curl told us %d\n", res);
}
}
if(ftpfile.stream)
fclose(ftpfile.stream); /* close the local file */
curl_global_cleanup();
return 0;
}

139
proxy_c/third-lib/libcurl/docs/examples/ftpupload.c
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@@ -1,139 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#ifdef WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
/* <DESC>
* Performs an FTP upload and renames the file just after a successful
* transfer.
* </DESC>
*/
#define LOCAL_FILE "/tmp/uploadthis.txt"
#define UPLOAD_FILE_AS "while-uploading.txt"
#define REMOTE_URL "ftp://example.com/" UPLOAD_FILE_AS
#define RENAME_FILE_TO "renamed-and-fine.txt"
/* NOTE: if you want this example to work on Windows with libcurl as a
DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
Failing to do so will give you a crash since a DLL may not use the
variable's memory when passed in to it from an app like this. */
static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
{
curl_off_t nread;
/* in real-world cases, this would probably get this data differently
as this fread() stuff is exactly what the library already would do
by default internally */
size_t retcode = fread(ptr, size, nmemb, stream);
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(void)
{
CURL *curl;
CURLcode res;
FILE *hd_src;
struct stat file_info;
curl_off_t fsize;
struct curl_slist *headerlist=NULL;
static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
/* get the file size of the local file */
if(stat(LOCAL_FILE, &file_info)) {
printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
return 1;
}
fsize = (curl_off_t)file_info.st_size;
printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
/* get a FILE * of the same file */
hd_src = fopen(LOCAL_FILE, "rb");
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* build a list of commands to pass to libcurl */
headerlist = curl_slist_append(headerlist, buf_1);
headerlist = curl_slist_append(headerlist, buf_2);
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* specify target */
curl_easy_setopt(curl, CURLOPT_URL, REMOTE_URL);
/* pass in that last of FTP commands to run after the transfer */
curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
/* now specify which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
/* Set the size of the file to upload (optional). If you give a *_LARGE
option you MUST make sure that the type of the passed-in argument is a
curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
make sure that to pass in a type 'long' argument. */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)fsize);
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* clean up the FTP commands list */
curl_slist_free_all(headerlist);
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(hd_src); /* close the local file */
curl_global_cleanup();
return 0;
}

173
proxy_c/third-lib/libcurl/docs/examples/ftpuploadresume.c
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@@ -1,173 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Upload to FTP, resuming failed transfers.
* </DESC>
*/
#include <stdlib.h>
#include <stdio.h>
#include <curl/curl.h>
#if defined(_MSC_VER) && (_MSC_VER < 1300)
# error _snscanf requires MSVC 7.0 or later.
#endif
/* The MinGW headers are missing a few Win32 function definitions,
you shouldn't need this if you use VC++ */
#if defined(__MINGW32__) && !defined(__MINGW64__)
int __cdecl _snscanf(const char *input, size_t length,
const char *format, ...);
#endif
/* parse headers for Content-Length */
size_t getcontentlengthfunc(void *ptr, size_t size, size_t nmemb, void *stream)
{
int r;
long len = 0;
/* _snscanf() is Win32 specific */
r = _snscanf(ptr, size * nmemb, "Content-Length: %ld\n", &len);
if(r) /* Microsoft: we don't read the specs */
*((long *) stream) = len;
return size * nmemb;
}
/* discard downloaded data */
size_t discardfunc(void *ptr, size_t size, size_t nmemb, void *stream)
{
return size * nmemb;
}
/* read data to upload */
size_t readfunc(void *ptr, size_t size, size_t nmemb, void *stream)
{
FILE *f = stream;
size_t n;
if(ferror(f))
return CURL_READFUNC_ABORT;
n = fread(ptr, size, nmemb, f) * size;
return n;
}
int upload(CURL *curlhandle, const char *remotepath, const char *localpath,
long timeout, long tries)
{
FILE *f;
long uploaded_len = 0;
CURLcode r = CURLE_GOT_NOTHING;
int c;
f = fopen(localpath, "rb");
if(!f) {
perror(NULL);
return 0;
}
curl_easy_setopt(curlhandle, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curlhandle, CURLOPT_URL, remotepath);
if(timeout)
curl_easy_setopt(curlhandle, CURLOPT_FTP_RESPONSE_TIMEOUT, timeout);
curl_easy_setopt(curlhandle, CURLOPT_HEADERFUNCTION, getcontentlengthfunc);
curl_easy_setopt(curlhandle, CURLOPT_HEADERDATA, &uploaded_len);
curl_easy_setopt(curlhandle, CURLOPT_WRITEFUNCTION, discardfunc);
curl_easy_setopt(curlhandle, CURLOPT_READFUNCTION, readfunc);
curl_easy_setopt(curlhandle, CURLOPT_READDATA, f);
/* disable passive mode */
curl_easy_setopt(curlhandle, CURLOPT_FTPPORT, "-");
curl_easy_setopt(curlhandle, CURLOPT_FTP_CREATE_MISSING_DIRS, 1L);
curl_easy_setopt(curlhandle, CURLOPT_VERBOSE, 1L);
for(c = 0; (r != CURLE_OK) && (c < tries); c++) {
/* are we resuming? */
if(c) { /* yes */
/* determine the length of the file already written */
/*
* With NOBODY and NOHEADER, libcurl will issue a SIZE
* command, but the only way to retrieve the result is
* to parse the returned Content-Length header. Thus,
* getcontentlengthfunc(). We need discardfunc() above
* because HEADER will dump the headers to stdout
* without it.
*/
curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 1L);
curl_easy_setopt(curlhandle, CURLOPT_HEADER, 1L);
r = curl_easy_perform(curlhandle);
if(r != CURLE_OK)
continue;
curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 0L);
curl_easy_setopt(curlhandle, CURLOPT_HEADER, 0L);
fseek(f, uploaded_len, SEEK_SET);
curl_easy_setopt(curlhandle, CURLOPT_APPEND, 1L);
}
else { /* no */
curl_easy_setopt(curlhandle, CURLOPT_APPEND, 0L);
}
r = curl_easy_perform(curlhandle);
}
fclose(f);
if(r == CURLE_OK)
return 1;
else {
fprintf(stderr, "%s\n", curl_easy_strerror(r));
return 0;
}
}
int main(int c, char **argv)
{
CURL *curlhandle = NULL;
curl_global_init(CURL_GLOBAL_ALL);
curlhandle = curl_easy_init();
upload(curlhandle, "ftp://user:pass@example.com/path/file", "C:\\file",
0, 3);
curl_easy_cleanup(curlhandle);
curl_global_cleanup();
return 0;
}

52
proxy_c/third-lib/libcurl/docs/examples/getinfo.c
View File

@@ -1,52 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Use getinfo to get content-type after completed transfer.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/");
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
char *ct;
/* ask for the content-type */
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &ct);
if((CURLE_OK == res) && ct)
printf("We received Content-Type: %s\n", ct);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}

115
proxy_c/third-lib/libcurl/docs/examples/getinmemory.c
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@@ -1,115 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Shows how the write callback function can be used to download data into a
* chunk of memory instead of storing it in a file.
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
struct MemoryStruct {
char *memory;
size_t size;
};
static size_t
WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
mem->memory = realloc(mem->memory, mem->size + realsize + 1);
if(mem->memory == NULL) {
/* out of memory! */
printf("not enough memory (realloc returned NULL)\n");
return 0;
}
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
return realsize;
}
int main(void)
{
CURL *curl_handle;
CURLcode res;
struct MemoryStruct chunk;
chunk.memory = malloc(1); /* will be grown as needed by the realloc above */
chunk.size = 0; /* no data at this point */
curl_global_init(CURL_GLOBAL_ALL);
/* init the curl session */
curl_handle = curl_easy_init();
/* specify URL to get */
curl_easy_setopt(curl_handle, CURLOPT_URL, "http://www.example.com/");
/* send all data to this function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)&chunk);
/* some servers don't like requests that are made without a user-agent
field, so we provide one */
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
/* get it! */
res = curl_easy_perform(curl_handle);
/* check for errors */
if(res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
else {
/*
* Now, our chunk.memory points to a memory block that is chunk.size
* bytes big and contains the remote file.
*
* Do something nice with it!
*/
printf("%lu bytes retrieved\n", (long)chunk.size);
}
/* cleanup curl stuff */
curl_easy_cleanup(curl_handle);
free(chunk.memory);
/* we're done with libcurl, so clean it up */
curl_global_cleanup();
return 0;
}

70
proxy_c/third-lib/libcurl/docs/examples/getredirect.c
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@@ -1,70 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Show how to extract Location: header and URL to redirect to.
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
char *location;
long response_code;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* example.com is redirected, figure out the redirection! */
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
else {
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
if((res == CURLE_OK) &&
((response_code / 100) != 3)) {
/* a redirect implies a 3xx response code */
fprintf(stderr, "Not a redirect.\n");
}
else {
res = curl_easy_getinfo(curl, CURLINFO_REDIRECT_URL, &location);
if((res == CURLE_OK) && location) {
/* This is the new absolute URL that you could redirect to, even if
* the Location: response header may have been a relative URL. */
printf("Redirected to: %s\n", location);
}
}
}
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}

429
proxy_c/third-lib/libcurl/docs/examples/ghiper.c
View File

@@ -1,429 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket API usage together with with glib2
* </DESC>
*/
/* Example application source code using the multi socket interface to
* download many files at once.
*
* Written by Jeff Pohlmeyer
Requires glib-2.x and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs, adapted to use glib's g_io_channel in place of libevent.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <glib.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <curl/curl.h>
#define MSG_OUT g_print /* Change to "g_error" to write to stderr */
#define SHOW_VERBOSE 0 /* Set to non-zero for libcurl messages */
#define SHOW_PROGRESS 0 /* Set to non-zero to enable progress callback */
/* Global information, common to all connections */
typedef struct _GlobalInfo {
CURLM *multi;
guint timer_event;
int still_running;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo {
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo {
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
GIOChannel *ch;
guint ev;
GlobalInfo *global;
} SockInfo;
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
case CURLM_BAD_HANDLE: s="CURLM_BAD_HANDLE"; break;
case CURLM_BAD_EASY_HANDLE: s="CURLM_BAD_EASY_HANDLE"; break;
case CURLM_OUT_OF_MEMORY: s="CURLM_OUT_OF_MEMORY"; break;
case CURLM_INTERNAL_ERROR: s="CURLM_INTERNAL_ERROR"; break;
case CURLM_BAD_SOCKET: s="CURLM_BAD_SOCKET"; break;
case CURLM_UNKNOWN_OPTION: s="CURLM_UNKNOWN_OPTION"; break;
case CURLM_LAST: s="CURLM_LAST"; break;
default: s="CURLM_unknown";
}
MSG_OUT("ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
MSG_OUT("REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
MSG_OUT("DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by glib when our timeout expires */
static gboolean timer_cb(gpointer data)
{
GlobalInfo *g = (GlobalInfo *)data;
CURLMcode rc;
rc = curl_multi_socket_action(g->multi,
CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
return FALSE;
}
/* Update the event timer after curl_multi library calls */
static int update_timeout_cb(CURLM *multi, long timeout_ms, void *userp)
{
struct timeval timeout;
GlobalInfo *g=(GlobalInfo *)userp;
timeout.tv_sec = timeout_ms/1000;
timeout.tv_usec = (timeout_ms%1000)*1000;
MSG_OUT("*** update_timeout_cb %ld => %ld:%ld ***\n",
timeout_ms, timeout.tv_sec, timeout.tv_usec);
g->timer_event = g_timeout_add(timeout_ms, timer_cb, g);
return 0;
}
/* Called by glib when we get action on a multi socket */
static gboolean event_cb(GIOChannel *ch, GIOCondition condition, gpointer data)
{
GlobalInfo *g = (GlobalInfo*) data;
CURLMcode rc;
int fd=g_io_channel_unix_get_fd(ch);
int action =
(condition & G_IO_IN ? CURL_CSELECT_IN : 0) |
(condition & G_IO_OUT ? CURL_CSELECT_OUT : 0);
rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running) {
return TRUE;
}
else {
MSG_OUT("last transfer done, kill timeout\n");
if(g->timer_event) {
g_source_remove(g->timer_event);
}
return FALSE;
}
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f)
{
if(!f) {
return;
}
if(f->ev) {
g_source_remove(f->ev);
}
g_free(f);
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
GIOCondition kind =
(act&CURL_POLL_IN?G_IO_IN:0)|(act&CURL_POLL_OUT?G_IO_OUT:0);
f->sockfd = s;
f->action = act;
f->easy = e;
if(f->ev) {
g_source_remove(f->ev);
}
f->ev=g_io_add_watch(f->ch, kind, event_cb, g);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = g_malloc0(sizeof(SockInfo));
fdp->global = g;
fdp->ch=g_io_channel_unix_new(s);
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
static const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
MSG_OUT("socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
MSG_OUT("\n");
remsock(fdp);
}
else {
if(!fdp) {
MSG_OUT("Adding data: %s%s\n",
what&CURL_POLL_IN?"READ":"",
what&CURL_POLL_OUT?"WRITE":"");
addsock(s, e, what, g);
}
else {
MSG_OUT(
"Changing action from %d to %d\n", fdp->action, what);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
ConnInfo *conn = (ConnInfo*) data;
(void)ptr;
(void)conn;
return realsize;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
MSG_OUT("Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = g_malloc0(sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
MSG_OUT("curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = g_strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, (long)SHOW_VERBOSE);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, SHOW_PROGRESS?0L:1L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(conn->easy, CURLOPT_CONNECTTIMEOUT, 30L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_LIMIT, 1L);
curl_easy_setopt(conn->easy, CURLOPT_LOW_SPEED_TIME, 30L);
MSG_OUT("Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc =curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called by glib whenever data is received from the fifo */
static gboolean fifo_cb(GIOChannel *ch, GIOCondition condition, gpointer data)
{
#define BUF_SIZE 1024
gsize len, tp;
gchar *buf, *tmp, *all=NULL;
GIOStatus rv;
do {
GError *err=NULL;
rv = g_io_channel_read_line(ch, &buf, &len, &tp, &err);
if(buf) {
if(tp) {
buf[tp]='\0';
}
new_conn(buf, (GlobalInfo*)data);
g_free(buf);
}
else {
buf = g_malloc(BUF_SIZE+1);
while(TRUE) {
buf[BUF_SIZE]='\0';
g_io_channel_read_chars(ch, buf, BUF_SIZE, &len, &err);
if(len) {
buf[len]='\0';
if(all) {
tmp=all;
all=g_strdup_printf("%s%s", tmp, buf);
g_free(tmp);
}
else {
all = g_strdup(buf);
}
}
else {
break;
}
}
if(all) {
new_conn(all, (GlobalInfo*)data);
g_free(all);
}
g_free(buf);
}
if(err) {
g_error("fifo_cb: %s", err->message);
g_free(err);
break;
}
} while((len) && (rv == G_IO_STATUS_NORMAL));
return TRUE;
}
int init_fifo(void)
{
struct stat st;
const char *fifo = "hiper.fifo";
int socket;
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
socket = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(socket == -1) {
perror("open");
exit(1);
}
MSG_OUT("Now, pipe some URL's into > %s\n", fifo);
return socket;
}
int main(int argc, char **argv)
{
GlobalInfo *g;
CURLMcode rc;
GMainLoop*gmain;
int fd;
GIOChannel* ch;
g=g_malloc0(sizeof(GlobalInfo));
fd=init_fifo();
ch=g_io_channel_unix_new(fd);
g_io_add_watch(ch, G_IO_IN, fifo_cb, g);
gmain=g_main_loop_new(NULL, FALSE);
g->multi = curl_multi_init();
curl_multi_setopt(g->multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g->multi, CURLMOPT_SOCKETDATA, g);
curl_multi_setopt(g->multi, CURLMOPT_TIMERFUNCTION, update_timeout_cb);
curl_multi_setopt(g->multi, CURLMOPT_TIMERDATA, g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
g_main_loop_run(gmain);
curl_multi_cleanup(g->multi);
return 0;
}

442
proxy_c/third-lib/libcurl/docs/examples/hiperfifo.c
View File

@@ -1,442 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi socket API usage with libevent 2
* </DESC>
*/
/* Example application source code using the multi socket interface to
download many files at once.
Written by Jeff Pohlmeyer
Requires libevent version 2 and a (POSIX?) system that has mkfifo().
This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
sample programs.
When running, the program creates the named pipe "hiper.fifo"
Whenever there is input into the fifo, the program reads the input as a list
of URL's and creates some new easy handles to fetch each URL via the
curl_multi "hiper" API.
Thus, you can try a single URL:
% echo http://www.yahoo.com > hiper.fifo
Or a whole bunch of them:
% cat my-url-list > hiper.fifo
The fifo buffer is handled almost instantly, so you can even add more URL's
while the previous requests are still being downloaded.
Note:
For the sake of simplicity, URL length is limited to 1023 char's !
This is purely a demo app, all retrieved data is simply discarded by the write
callback.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <sys/poll.h>
#include <curl/curl.h>
#include <event2/event.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
/* Global information, common to all connections */
typedef struct _GlobalInfo
{
struct event_base *evbase;
struct event *fifo_event;
struct event *timer_event;
CURLM *multi;
int still_running;
FILE *input;
} GlobalInfo;
/* Information associated with a specific easy handle */
typedef struct _ConnInfo
{
CURL *easy;
char *url;
GlobalInfo *global;
char error[CURL_ERROR_SIZE];
} ConnInfo;
/* Information associated with a specific socket */
typedef struct _SockInfo
{
curl_socket_t sockfd;
CURL *easy;
int action;
long timeout;
struct event *ev;
int evset;
GlobalInfo *global;
} SockInfo;
/* Update the event timer after curl_multi library calls */
static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
{
struct timeval timeout;
(void)multi; /* unused */
timeout.tv_sec = timeout_ms/1000;
timeout.tv_usec = (timeout_ms%1000)*1000;
fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms);
evtimer_add(g->timer_event, &timeout);
return 0;
}
/* Die if we get a bad CURLMcode somewhere */
static void mcode_or_die(const char *where, CURLMcode code)
{
if(CURLM_OK != code) {
const char *s;
switch(code) {
case CURLM_BAD_HANDLE: s="CURLM_BAD_HANDLE"; break;
case CURLM_BAD_EASY_HANDLE: s="CURLM_BAD_EASY_HANDLE"; break;
case CURLM_OUT_OF_MEMORY: s="CURLM_OUT_OF_MEMORY"; break;
case CURLM_INTERNAL_ERROR: s="CURLM_INTERNAL_ERROR"; break;
case CURLM_UNKNOWN_OPTION: s="CURLM_UNKNOWN_OPTION"; break;
case CURLM_LAST: s="CURLM_LAST"; break;
default: s="CURLM_unknown";
break;
case CURLM_BAD_SOCKET: s="CURLM_BAD_SOCKET";
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
/* ignore this error */
return;
}
fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
exit(code);
}
}
/* Check for completed transfers, and remove their easy handles */
static void check_multi_info(GlobalInfo *g)
{
char *eff_url;
CURLMsg *msg;
int msgs_left;
ConnInfo *conn;
CURL *easy;
CURLcode res;
fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
while((msg = curl_multi_info_read(g->multi, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
easy = msg->easy_handle;
res = msg->data.result;
curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
curl_multi_remove_handle(g->multi, easy);
free(conn->url);
curl_easy_cleanup(easy);
free(conn);
}
}
}
/* Called by libevent when we get action on a multi socket */
static void event_cb(int fd, short kind, void *userp)
{
GlobalInfo *g = (GlobalInfo*) userp;
CURLMcode rc;
int action =
(kind & EV_READ ? CURL_CSELECT_IN : 0) |
(kind & EV_WRITE ? CURL_CSELECT_OUT : 0);
rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
mcode_or_die("event_cb: curl_multi_socket_action", rc);
check_multi_info(g);
if(g->still_running <= 0) {
fprintf(MSG_OUT, "last transfer done, kill timeout\n");
if(evtimer_pending(g->timer_event, NULL)) {
evtimer_del(g->timer_event);
}
}
}
/* Called by libevent when our timeout expires */
static void timer_cb(int fd, short kind, void *userp)
{
GlobalInfo *g = (GlobalInfo *)userp;
CURLMcode rc;
(void)fd;
(void)kind;
rc = curl_multi_socket_action(g->multi,
CURL_SOCKET_TIMEOUT, 0, &g->still_running);
mcode_or_die("timer_cb: curl_multi_socket_action", rc);
check_multi_info(g);
}
/* Clean up the SockInfo structure */
static void remsock(SockInfo *f)
{
if(f) {
if(f->evset)
event_free(f->ev);
free(f);
}
}
/* Assign information to a SockInfo structure */
static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act,
GlobalInfo *g)
{
int kind =
(act&CURL_POLL_IN?EV_READ:0)|(act&CURL_POLL_OUT?EV_WRITE:0)|EV_PERSIST;
f->sockfd = s;
f->action = act;
f->easy = e;
if(f->evset)
event_free(f->ev);
f->ev = event_new(g->evbase, f->sockfd, kind, event_cb, g);
f->evset = 1;
event_add(f->ev, NULL);
}
/* Initialize a new SockInfo structure */
static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g)
{
SockInfo *fdp = calloc(sizeof(SockInfo), 1);
fdp->global = g;
setsock(fdp, s, easy, action, g);
curl_multi_assign(g->multi, s, fdp);
}
/* CURLMOPT_SOCKETFUNCTION */
static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
{
GlobalInfo *g = (GlobalInfo*) cbp;
SockInfo *fdp = (SockInfo*) sockp;
const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
fprintf(MSG_OUT,
"socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
if(what == CURL_POLL_REMOVE) {
fprintf(MSG_OUT, "\n");
remsock(fdp);
}
else {
if(!fdp) {
fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
addsock(s, e, what, g);
}
else {
fprintf(MSG_OUT,
"Changing action from %s to %s\n",
whatstr[fdp->action], whatstr[what]);
setsock(fdp, s, e, what, g);
}
}
return 0;
}
/* CURLOPT_WRITEFUNCTION */
static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
ConnInfo *conn = (ConnInfo*) data;
(void)ptr;
(void)conn;
return realsize;
}
/* CURLOPT_PROGRESSFUNCTION */
static int prog_cb(void *p, double dltotal, double dlnow, double ult,
double uln)
{
ConnInfo *conn = (ConnInfo *)p;
(void)ult;
(void)uln;
fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
return 0;
}
/* Create a new easy handle, and add it to the global curl_multi */
static void new_conn(char *url, GlobalInfo *g)
{
ConnInfo *conn;
CURLMcode rc;
conn = calloc(1, sizeof(ConnInfo));
memset(conn, 0, sizeof(ConnInfo));
conn->error[0]='\0';
conn->easy = curl_easy_init();
if(!conn->easy) {
fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
exit(2);
}
conn->global = g;
conn->url = strdup(url);
curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn);
curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
fprintf(MSG_OUT,
"Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
rc = curl_multi_add_handle(g->multi, conn->easy);
mcode_or_die("new_conn: curl_multi_add_handle", rc);
/* note that the add_handle() will set a time-out to trigger very soon so
that the necessary socket_action() call will be called by this app */
}
/* This gets called whenever data is received from the fifo */
static void fifo_cb(int fd, short event, void *arg)
{
char s[1024];
long int rv=0;
int n=0;
GlobalInfo *g = (GlobalInfo *)arg;
(void)fd; /* unused */
(void)event; /* unused */
do {
s[0]='\0';
rv=fscanf(g->input, "%1023s%n", s, &n);
s[n]='\0';
if(n && s[0]) {
new_conn(s, arg); /* if we read a URL, go get it! */
}
else
break;
} while(rv != EOF);
}
/* Create a named pipe and tell libevent to monitor it */
static const char *fifo = "hiper.fifo";
static int init_fifo(GlobalInfo *g)
{
struct stat st;
curl_socket_t sockfd;
fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
if(lstat (fifo, &st) == 0) {
if((st.st_mode & S_IFMT) == S_IFREG) {
errno = EEXIST;
perror("lstat");
exit(1);
}
}
unlink(fifo);
if(mkfifo (fifo, 0600) == -1) {
perror("mkfifo");
exit(1);
}
sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
if(sockfd == -1) {
perror("open");
exit(1);
}
g->input = fdopen(sockfd, "r");
fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
g->fifo_event = event_new(g->evbase, sockfd, EV_READ|EV_PERSIST, fifo_cb, g);
event_add(g->fifo_event, NULL);
return (0);
}
static void clean_fifo(GlobalInfo *g)
{
event_free(g->fifo_event);
fclose(g->input);
unlink(fifo);
}
int main(int argc, char **argv)
{
GlobalInfo g;
(void)argc;
(void)argv;
memset(&g, 0, sizeof(GlobalInfo));
g.evbase = event_base_new();
init_fifo(&g);
g.multi = curl_multi_init();
g.timer_event = evtimer_new(g.evbase, timer_cb, &g);
/* setup the generic multi interface options we want */
curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
/* we don't call any curl_multi_socket*() function yet as we have no handles
added! */
event_base_dispatch(g.evbase);
/* this, of course, won't get called since only way to stop this program is
via ctrl-C, but it is here to show how cleanup /would/ be done. */
clean_fifo(&g);
event_free(g.timer_event);
event_base_free(g.evbase);
curl_multi_cleanup(g.multi);
return 0;
}

86
proxy_c/third-lib/libcurl/docs/examples/href_extractor.c
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@@ -1,86 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Uses the "Streaming HTML parser" to extract the href pieces in a streaming
* manner from a downloaded HTML.
* </DESC>
*/
/*
* The HTML parser is found at http://code.google.com/p/htmlstreamparser/
*/
#include <stdio.h>
#include <curl/curl.h>
#include <htmlstreamparser.h>
static size_t write_callback(void *buffer, size_t size, size_t nmemb,
void *hsp)
{
size_t realsize = size * nmemb, p;
for(p = 0; p < realsize; p++) {
html_parser_char_parse(hsp, ((char *)buffer)[p]);
if(html_parser_cmp_tag(hsp, "a", 1))
if(html_parser_cmp_attr(hsp, "href", 4))
if(html_parser_is_in(hsp, HTML_VALUE_ENDED)) {
html_parser_val(hsp)[html_parser_val_length(hsp)] = '\0';
printf("%s\n", html_parser_val(hsp));
}
}
return realsize;
}
int main(int argc, char *argv[])
{
char tag[1], attr[4], val[128];
CURL *curl;
HTMLSTREAMPARSER *hsp;
if(argc != 2) {
printf("Usage: %s URL\n", argv[0]);
return EXIT_FAILURE;
}
curl = curl_easy_init();
hsp = html_parser_init();
html_parser_set_tag_to_lower(hsp, 1);
html_parser_set_attr_to_lower(hsp, 1);
html_parser_set_tag_buffer(hsp, tag, sizeof(tag));
html_parser_set_attr_buffer(hsp, attr, sizeof(attr));
html_parser_set_val_buffer(hsp, val, sizeof(val)-1);
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, hsp);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_perform(curl);
curl_easy_cleanup(curl);
html_parser_cleanup(hsp);
return EXIT_SUCCESS;
}

127
proxy_c/third-lib/libcurl/docs/examples/htmltidy.c
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@@ -1,127 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Download a document and use libtidy to parse the HTML.
* </DESC>
*/
/*
* LibTidy => http://tidy.sourceforge.net
*/
#include <stdio.h>
#include <tidy/tidy.h>
#include <tidy/buffio.h>
#include <curl/curl.h>
/* curl write callback, to fill tidy's input buffer... */
uint write_cb(char *in, uint size, uint nmemb, TidyBuffer *out)
{
uint r;
r = size * nmemb;
tidyBufAppend(out, in, r);
return r;
}
/* Traverse the document tree */
void dumpNode(TidyDoc doc, TidyNode tnod, int indent)
{
TidyNode child;
for(child = tidyGetChild(tnod); child; child = tidyGetNext(child) ) {
ctmbstr name = tidyNodeGetName(child);
if(name) {
/* if it has a name, then it's an HTML tag ... */
TidyAttr attr;
printf("%*.*s%s ", indent, indent, "<", name);
/* walk the attribute list */
for(attr=tidyAttrFirst(child); attr; attr=tidyAttrNext(attr) ) {
printf(tidyAttrName(attr));
tidyAttrValue(attr)?printf("=\"%s\" ",
tidyAttrValue(attr)):printf(" ");
}
printf(">\n");
}
else {
/* if it doesn't have a name, then it's probably text, cdata, etc... */
TidyBuffer buf;
tidyBufInit(&buf);
tidyNodeGetText(doc, child, &buf);
printf("%*.*s\n", indent, indent, buf.bp?(char *)buf.bp:"");
tidyBufFree(&buf);
}
dumpNode(doc, child, indent + 4); /* recursive */
}
}
int main(int argc, char **argv)
{
CURL *curl;
char curl_errbuf[CURL_ERROR_SIZE];
TidyDoc tdoc;
TidyBuffer docbuf = {0};
TidyBuffer tidy_errbuf = {0};
int err;
if(argc == 2) {
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
tdoc = tidyCreate();
tidyOptSetBool(tdoc, TidyForceOutput, yes); /* try harder */
tidyOptSetInt(tdoc, TidyWrapLen, 4096);
tidySetErrorBuffer(tdoc, &tidy_errbuf);
tidyBufInit(&docbuf);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);
err=curl_easy_perform(curl);
if(!err) {
err = tidyParseBuffer(tdoc, &docbuf); /* parse the input */
if(err >= 0) {
err = tidyCleanAndRepair(tdoc); /* fix any problems */
if(err >= 0) {
err = tidyRunDiagnostics(tdoc); /* load tidy error buffer */
if(err >= 0) {
dumpNode(tdoc, tidyGetRoot(tdoc), 0); /* walk the tree */
fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */
}
}
}
}
else
fprintf(stderr, "%s\n", curl_errbuf);
/* clean-up */
curl_easy_cleanup(curl);
tidyBufFree(&docbuf);
tidyBufFree(&tidy_errbuf);
tidyRelease(tdoc);
return err;
}
else
printf("usage: %s <url>\n", argv[0]);
return 0;
}

315
proxy_c/third-lib/libcurl/docs/examples/htmltitle.cpp
View File

@@ -1,315 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Get a web page, extract the title with libxml.
* </DESC>
*/
// Written by Lars Nilsson
//
// GNU C++ compile command line suggestion (edit paths accordingly):
//
// g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
// -o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <string>
#include <curl/curl.h>
#include <libxml/HTMLparser.h>
//
// Case-insensitive string comparison
//
#ifdef _MSC_VER
#define COMPARE(a, b) (!_stricmp((a), (b)))
#else
#define COMPARE(a, b) (!strcasecmp((a), (b)))
#endif
//
// libxml callback context structure
//
struct Context
{
Context(): addTitle(false) { }
bool addTitle;
std::string title;
};
//
// libcurl variables for error strings and returned data
static char errorBuffer[CURL_ERROR_SIZE];
static std::string buffer;
//
// libcurl write callback function
//
static int writer(char *data, size_t size, size_t nmemb,
std::string *writerData)
{
if (writerData == NULL)
return 0;
writerData->append(data, size*nmemb);
return size * nmemb;
}
//
// libcurl connection initialization
//
static bool init(CURL *&conn, char *url)
{
CURLcode code;
conn = curl_easy_init();
if (conn == NULL)
{
fprintf(stderr, "Failed to create CURL connection\n");
exit(EXIT_FAILURE);
}
code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to set error buffer [%d]\n", code);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_URL, url);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to set URL [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_FOLLOWLOCATION, 1L);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to set redirect option [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, writer);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to set writer [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEDATA, &buffer);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to set write data [%s]\n", errorBuffer);
return false;
}
return true;
}
//
// libxml start element callback function
//
static void StartElement(void *voidContext,
const xmlChar *name,
const xmlChar **attributes)
{
Context *context = (Context *)voidContext;
if (COMPARE((char *)name, "TITLE"))
{
context->title = "";
context->addTitle = true;
}
(void) attributes;
}
//
// libxml end element callback function
//
static void EndElement(void *voidContext,
const xmlChar *name)
{
Context *context = (Context *)voidContext;
if (COMPARE((char *)name, "TITLE"))
context->addTitle = false;
}
//
// Text handling helper function
//
static void handleCharacters(Context *context,
const xmlChar *chars,
int length)
{
if (context->addTitle)
context->title.append((char *)chars, length);
}
//
// libxml PCDATA callback function
//
static void Characters(void *voidContext,
const xmlChar *chars,
int length)
{
Context *context = (Context *)voidContext;
handleCharacters(context, chars, length);
}
//
// libxml CDATA callback function
//
static void cdata(void *voidContext,
const xmlChar *chars,
int length)
{
Context *context = (Context *)voidContext;
handleCharacters(context, chars, length);
}
//
// libxml SAX callback structure
//
static htmlSAXHandler saxHandler =
{
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
StartElement,
EndElement,
NULL,
Characters,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
cdata,
NULL
};
//
// Parse given (assumed to be) HTML text and return the title
//
static void parseHtml(const std::string &html,
std::string &title)
{
htmlParserCtxtPtr ctxt;
Context context;
ctxt = htmlCreatePushParserCtxt(&saxHandler, &context, "", 0, "",
XML_CHAR_ENCODING_NONE);
htmlParseChunk(ctxt, html.c_str(), html.size(), 0);
htmlParseChunk(ctxt, "", 0, 1);
htmlFreeParserCtxt(ctxt);
title = context.title;
}
int main(int argc, char *argv[])
{
CURL *conn = NULL;
CURLcode code;
std::string title;
// Ensure one argument is given
if (argc != 2)
{
fprintf(stderr, "Usage: %s <url>\n", argv[0]);
exit(EXIT_FAILURE);
}
curl_global_init(CURL_GLOBAL_DEFAULT);
// Initialize CURL connection
if (!init(conn, argv[1]))
{
fprintf(stderr, "Connection initializion failed\n");
exit(EXIT_FAILURE);
}
// Retrieve content for the URL
code = curl_easy_perform(conn);
curl_easy_cleanup(conn);
if (code != CURLE_OK)
{
fprintf(stderr, "Failed to get '%s' [%s]\n", argv[1], errorBuffer);
exit(EXIT_FAILURE);
}
// Parse the (assumed) HTML code
parseHtml(buffer, title);
// Display the extracted title
printf("Title: %s\n", title.c_str());
return EXIT_SUCCESS;
}

59
proxy_c/third-lib/libcurl/docs/examples/http-post.c
View File

@@ -1,59 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* simple HTTP POST using the easy interface
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* First set the URL that is about to receive our POST. This URL can
just as well be a https:// URL if that is what should receive the
data. */
curl_easy_setopt(curl, CURLOPT_URL, "http://postit.example.com/moo.cgi");
/* Now specify the POST data */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "name=daniel&project=curl");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}

292
proxy_c/third-lib/libcurl/docs/examples/http2-download.c
View File

@@ -1,292 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Multiplexed HTTP/2 downloads over a single connection
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#ifndef CURLPIPE_MULTIPLEX
/* This little trick will just make sure that we don't enable pipelining for
libcurls old enough to not have this symbol. It is _not_ defined to zero in
a recent libcurl header. */
#define CURLPIPE_MULTIPLEX 0
#endif
#define NUM_HANDLES 1000
void *curl_hnd[NUM_HANDLES];
int num_transfers;
/* a handle to number lookup, highly ineffective when we do many
transfers... */
static int hnd2num(CURL *hnd)
{
int i;
for(i=0; i< num_transfers; i++) {
if(curl_hnd[i] == hnd)
return i;
}
return 0; /* weird, but just a fail-safe */
}
static
void dump(const char *text, int num, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%d %s, %ld bytes (0x%lx)\n",
num, text, (long)size, (long)size);
for(i=0; i<size; i+= width) {
fprintf(stderr, "%4.4lx: ", (long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stderr, "%02x ", ptr[i+c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stderr, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
const char *text;
int num = hnd2num(handle);
(void)handle; /* prevent compiler warning */
(void)userp;
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== %d Info: %s", num, data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, num, (unsigned char *)data, size, 1);
return 0;
}
static void setup(CURL *hnd, int num)
{
FILE *out;
char filename[128];
snprintf(filename, 128, "dl-%d", num);
out = fopen(filename, "wb");
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
/* set the same URL */
curl_easy_setopt(hnd, CURLOPT_URL, "https://localhost:8443/index.html");
/* send it verbose for max debuggaility */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
curl_hnd[num] = hnd;
}
/*
* Simply download two files over HTTP/2, using the same physical connection!
*/
int main(int argc, char **argv)
{
CURL *easy[NUM_HANDLES];
CURLM *multi_handle;
int i;
int still_running; /* keep number of running handles */
if(argc > 1)
/* if given a number, do that many transfers */
num_transfers = atoi(argv[1]);
if(!num_transfers || (num_transfers > NUM_HANDLES))
num_transfers = 3; /* a suitable low default */
/* init a multi stack */
multi_handle = curl_multi_init();
for(i=0; i<num_transfers; i++) {
easy[i] = curl_easy_init();
/* set options */
setup(easy[i], i);
/* add the individual transfer */
curl_multi_add_handle(multi_handle, easy[i]);
}
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
} while(still_running);
curl_multi_cleanup(multi_handle);
for(i=0; i<num_transfers; i++)
curl_easy_cleanup(easy[i]);
return 0;
}

320
proxy_c/third-lib/libcurl/docs/examples/http2-serverpush.c
View File

@@ -1,320 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP/2 server push
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#ifndef CURLPIPE_MULTIPLEX
#error "too old libcurl, can't do HTTP/2 server push!"
#endif
static
void dump(const char *text, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%s, %ld bytes (0x%lx)\n",
text, (long)size, (long)size);
for(i=0; i<size; i+= width) {
fprintf(stderr, "%4.4lx: ", (long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stderr, "%02x ", ptr[i+c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stderr, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
const char *text;
(void)handle; /* prevent compiler warning */
(void)userp;
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, (unsigned char *)data, size, 1);
return 0;
}
#define OUTPUTFILE "dl"
static void setup(CURL *hnd)
{
FILE *out = fopen(OUTPUTFILE, "wb");
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
/* set the same URL */
curl_easy_setopt(hnd, CURLOPT_URL, "https://localhost:8443/index.html");
/* send it verbose for max debuggaility */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
}
/* called when there's an incoming push */
static int server_push_callback(CURL *parent,
CURL *easy,
size_t num_headers,
struct curl_pushheaders *headers,
void *userp)
{
char *headp;
size_t i;
int *transfers = (int *)userp;
char filename[128];
FILE *out;
static unsigned int count = 0;
(void)parent; /* we have no use for this */
snprintf(filename, 128, "push%u", count++);
/* here's a new stream, save it in a new file for each new push */
out = fopen(filename, "wb");
/* write to this file */
curl_easy_setopt(easy, CURLOPT_WRITEDATA, out);
fprintf(stderr, "**** push callback approves stream %u, got %d headers!\n",
count, (int)num_headers);
for(i=0; i<num_headers; i++) {
headp = curl_pushheader_bynum(headers, i);
fprintf(stderr, "**** header %u: %s\n", (int)i, headp);
}
headp = curl_pushheader_byname(headers, ":path");
if(headp) {
fprintf(stderr, "**** The PATH is %s\n", headp /* skip :path + colon */);
}
(*transfers)++; /* one more */
return CURL_PUSH_OK;
}
/*
* Download a file over HTTP/2, take care of server push.
*/
int main(void)
{
CURL *easy;
CURLM *multi_handle;
int still_running; /* keep number of running handles */
int transfers=1; /* we start with one */
struct CURLMsg *m;
/* init a multi stack */
multi_handle = curl_multi_init();
easy = curl_easy_init();
/* set options */
setup(easy);
/* add the easy transfer */
curl_multi_add_handle(multi_handle, easy);
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHFUNCTION, server_push_callback);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHDATA, &transfers);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
/*
* A little caution when doing server push is that libcurl itself has
* created and added one or more easy handles but we need to clean them up
* when we are done.
*/
do {
int msgq = 0;;
m = curl_multi_info_read(multi_handle, &msgq);
if(m && (m->msg == CURLMSG_DONE)) {
CURL *e = m->easy_handle;
transfers--;
curl_multi_remove_handle(multi_handle, e);
curl_easy_cleanup(e);
}
} while(m);
} while(transfers); /* as long as we have transfers going */
curl_multi_cleanup(multi_handle);
return 0;
}

356
proxy_c/third-lib/libcurl/docs/examples/http2-upload.c
View File

@@ -1,356 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Multiplexed HTTP/2 uploads over a single connection
* </DESC>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
#ifndef CURLPIPE_MULTIPLEX
/* This little trick will just make sure that we don't enable pipelining for
libcurls old enough to not have this symbol. It is _not_ defined to zero in
a recent libcurl header. */
#define CURLPIPE_MULTIPLEX 0
#endif
#define NUM_HANDLES 1000
void *curl_hnd[NUM_HANDLES];
int num_transfers;
/* a handle to number lookup, highly ineffective when we do many
transfers... */
static int hnd2num(CURL *hnd)
{
int i;
for(i=0; i< num_transfers; i++) {
if(curl_hnd[i] == hnd)
return i;
}
return 0; /* weird, but just a fail-safe */
}
static
void dump(const char *text, int num, unsigned char *ptr, size_t size,
char nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stderr, "%d %s, %ld bytes (0x%lx)\n",
num, text, (long)size, (long)size);
for(i=0; i<size; i+= width) {
fprintf(stderr, "%4.4lx: ", (long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stderr, "%02x ", ptr[i+c]);
else
fputs(" ", stderr);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stderr, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stderr); /* newline */
}
}
static
int my_trace(CURL *handle, curl_infotype type,
char *data, size_t size,
void *userp)
{
char timebuf[20];
const char *text;
int num = hnd2num(handle);
static time_t epoch_offset;
static int known_offset;
struct timeval tv;
time_t secs;
struct tm *now;
(void)handle; /* prevent compiler warning */
(void)userp;
gettimeofday(&tv, NULL);
if(!known_offset) {
epoch_offset = time(NULL) - tv.tv_sec;
known_offset = 1;
}
secs = epoch_offset + tv.tv_sec;
now = localtime(&secs); /* not thread safe but we don't care */
snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, num, (unsigned char *)data, size, 1);
return 0;
}
struct input {
FILE *in;
size_t bytes_read; /* count up */
CURL *hnd;
};
static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
{
struct input *i = userp;
size_t retcode = fread(ptr, size, nmemb, i->in);
i->bytes_read += retcode;
return retcode;
}
struct input indata[NUM_HANDLES];
static void setup(CURL *hnd, int num, const char *upload)
{
FILE *out;
char url[256];
char filename[128];
struct stat file_info;
curl_off_t uploadsize;
snprintf(filename, 128, "dl-%d", num);
out = fopen(filename, "wb");
snprintf(url, 256, "https://localhost:8443/upload-%d", num);
/* get the file size of the local file */
stat(upload, &file_info);
uploadsize = file_info.st_size;
indata[num].in = fopen(upload, "rb");
indata[num].hnd = hnd;
/* write to this file */
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
/* we want to use our own read function */
curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
/* read from this file */
curl_easy_setopt(hnd, CURLOPT_READDATA, &indata[num]);
/* provide the size of the upload */
curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
/* send in the URL to store the upload as */
curl_easy_setopt(hnd, CURLOPT_URL, url);
/* upload please */
curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
/* send it verbose for max debuggaility */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
/* HTTP/2 please */
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
/* we use a self-signed test server, skip verification during debugging */
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
curl_hnd[num] = hnd;
}
/*
* Upload all files over HTTP/2, using the same physical connection!
*/
int main(int argc, char **argv)
{
CURL *easy[NUM_HANDLES];
CURLM *multi_handle;
int i;
int still_running; /* keep number of running handles */
const char *filename = "index.html";
if(argc > 1)
/* if given a number, do that many transfers */
num_transfers = atoi(argv[1]);
if(argc > 2)
/* if given a file name, upload this! */
filename = argv[2];
if(!num_transfers || (num_transfers > NUM_HANDLES))
num_transfers = 3; /* a suitable low default */
/* init a multi stack */
multi_handle = curl_multi_init();
for(i=0; i<num_transfers; i++) {
easy[i] = curl_easy_init();
/* set options */
setup(easy[i], i, filename);
/* add the individual transfer */
curl_multi_add_handle(multi_handle, easy[i]);
}
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
/* We do HTTP/2 so let's stick to one connection per host */
curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
} while(still_running);
curl_multi_cleanup(multi_handle);
for(i=0; i<num_transfers; i++)
curl_easy_cleanup(easy[i]);
return 0;
}

70
proxy_c/third-lib/libcurl/docs/examples/httpcustomheader.c
View File

@@ -1,70 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP request with custom modified, removed and added headers
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
struct curl_slist *chunk = NULL;
/* Remove a header curl would otherwise add by itself */
chunk = curl_slist_append(chunk, "Accept:");
/* Add a custom header */
chunk = curl_slist_append(chunk, "Another: yes");
/* Modify a header curl otherwise adds differently */
chunk = curl_slist_append(chunk, "Host: example.com");
/* Add a header with "blank" contents to the right of the colon. Note that
we're then using a semicolon in the string we pass to curl! */
chunk = curl_slist_append(chunk, "X-silly-header;");
/* set our custom set of headers */
res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_URL, "localhost");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* free the custom headers */
curl_slist_free_all(chunk);
}
return 0;
}

124
proxy_c/third-lib/libcurl/docs/examples/httpput.c
View File

@@ -1,124 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* HTTP PUT with easy interface and read callback
* </DESC>
*/
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <curl/curl.h>
/*
* This example shows a HTTP PUT operation. PUTs a file given as a command
* line argument to the URL also given on the command line.
*
* This example also uses its own read callback.
*
* Here's an article on how to setup a PUT handler for Apache:
* http://www.apacheweek.com/features/put
*/
static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
{
size_t retcode;
curl_off_t nread;
/* in real-world cases, this would probably get this data differently
as this fread() stuff is exactly what the library already would do
by default internally */
retcode = fread(ptr, size, nmemb, stream);
nread = (curl_off_t)retcode;
fprintf(stderr, "*** We read %" CURL_FORMAT_CURL_OFF_T
" bytes from file\n", nread);
return retcode;
}
int main(int argc, char **argv)
{
CURL *curl;
CURLcode res;
FILE * hd_src;
struct stat file_info;
char *file;
char *url;
if(argc < 3)
return 1;
file= argv[1];
url = argv[2];
/* get the file size of the local file */
stat(file, &file_info);
/* get a FILE * of the same file, could also be made with
fdopen() from the previous descriptor, but hey this is just
an example! */
hd_src = fopen(file, "rb");
/* In windows, this will init the winsock stuff */
curl_global_init(CURL_GLOBAL_ALL);
/* get a curl handle */
curl = curl_easy_init();
if(curl) {
/* we want to use our own read function */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
/* HTTP PUT please */
curl_easy_setopt(curl, CURLOPT_PUT, 1L);
/* specify target URL, and note that this URL should include a file
name, not only a directory */
curl_easy_setopt(curl, CURLOPT_URL, url);
/* now specify which file to upload */
curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
/* provide the size of the upload, we specicially typecast the value
to curl_off_t since we must be sure to use the correct data size */
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
(curl_off_t)file_info.st_size);
/* Now run off and do what you've been told! */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
fclose(hd_src); /* close the local file */
curl_global_cleanup();
return 0;
}

78
proxy_c/third-lib/libcurl/docs/examples/https.c
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@@ -1,78 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* Simple HTTPS GET
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
#ifdef SKIP_PEER_VERIFICATION
/*
* If you want to connect to a site who isn't using a certificate that is
* signed by one of the certs in the CA bundle you have, you can skip the
* verification of the server's certificate. This makes the connection
* A LOT LESS SECURE.
*
* If you have a CA cert for the server stored someplace else than in the
* default bundle, then the CURLOPT_CAPATH option might come handy for
* you.
*/
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
#ifdef SKIP_HOSTNAME_VERIFICATION
/*
* If the site you're connecting to uses a different host name that what
* they have mentioned in their server certificate's commonName (or
* subjectAltName) fields, libcurl will refuse to connect. You can skip
* this check, but this will make the connection less secure.
*/
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return 0;
}

131
proxy_c/third-lib/libcurl/docs/examples/imap-append.c
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@@ -1,131 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to send e-mails
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* This is a simple example showing how to send mail using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
#define FROM "<sender@example.org>"
#define TO "<addressee@example.net>"
#define CC "<info@example.org>"
static const char *payload_text[] = {
"Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n",
"To: " TO "\r\n",
"From: " FROM "(Example User)\r\n",
"Cc: " CC "(Another example User)\r\n",
"Message-ID: "
"<dcd7cb36-11db-487a-9f3a-e652a9458efd@rfcpedant.example.org>\r\n",
"Subject: IMAP example message\r\n",
"\r\n", /* empty line to divide headers from body, see RFC5322 */
"The body of the message starts here.\r\n",
"\r\n",
"It could be a lot of lines, could be MIME encoded, whatever.\r\n",
"Check RFC5322.\r\n",
NULL
};
struct upload_status {
int lines_read;
};
static size_t payload_source(void *ptr, size_t size, size_t nmemb, void *userp)
{
struct upload_status *upload_ctx = (struct upload_status *)userp;
const char *data;
if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
return 0;
}
data = payload_text[upload_ctx->lines_read];
if(data) {
size_t len = strlen(data);
memcpy(ptr, data, len);
upload_ctx->lines_read++;
return len;
}
return 0;
}
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
const char **p;
long infilesize;
struct upload_status upload_ctx;
upload_ctx.lines_read = 0;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will create a new message 100. Note that you should perform an
* EXAMINE command to obtain the UID of the next message to create and a
* SELECT to ensure you are creating the message in the OUTBOX. */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/100");
/* In this case, we're using a callback function to specify the data. You
* could just use the CURLOPT_READDATA option to specify a FILE pointer to
* read from. */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
infilesize = 0;
for(p = payload_text; *p; ++p) {
infilesize += (long)strlen(*p);
}
curl_easy_setopt(curl, CURLOPT_INFILESIZE, infilesize);
/* Perform the append */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

71
proxy_c/third-lib/libcurl/docs/examples/imap-copy.c
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@@ -1,71 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to copy an e-mail from one folder to another
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to copy a mail from one mailbox folder
* to another using libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is source mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the COPY command specifing the message ID and destination folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "COPY 1 FOLDER");
/* Note that to perform a move operation you will need to perform the copy,
* then mark the original mail as Deleted and EXPUNGE or CLOSE. Please see
* imap-store.c for more information on deleting messages. */
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

67
proxy_c/third-lib/libcurl/docs/examples/imap-create.c
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@@ -1,67 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to create a new folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to create a new mailbox folder using
* libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the CREATE command specifing the new folder name */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "CREATE FOLDER");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

67
proxy_c/third-lib/libcurl/docs/examples/imap-delete.c
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@@ -1,67 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to delete a folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to delete an existing mailbox folder
* using libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the DELETE command specifing the existing folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE FOLDER");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

67
proxy_c/third-lib/libcurl/docs/examples/imap-examine.c
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@@ -1,67 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to obtain information about a folder
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to obtain information about a mailbox
* folder using libcurl's IMAP capabilities via the EXAMINE command.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the EXAMINE command specifing the mailbox folder */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "EXAMINE OUTBOX");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

65
proxy_c/third-lib/libcurl/docs/examples/imap-fetch.c
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@@ -1,65 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to retreieve e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL,
"imap://imap.example.com/INBOX/;UID=1");
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

66
proxy_c/third-lib/libcurl/docs/examples/imap-list.c
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@@ -1,66 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example to list the folders within a mailbox
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to list the folders within an IMAP
* mailbox.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will list the folders within the user's mailbox. If you want to
* list the folders within a specific folder, for example the inbox, then
* specify the folder as a path in the URL such as /INBOX */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Perform the list */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

68
proxy_c/third-lib/libcurl/docs/examples/imap-lsub.c
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@@ -1,68 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example to list the subscribed folders
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to list the subscribed folders within
* an IMAP mailbox.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the LSUB command. Note the syntax is very similar to that of a LIST
command. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "LSUB \"\" *");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

173
proxy_c/third-lib/libcurl/docs/examples/imap-multi.c
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@@ -1,173 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using the multi interface
* </DESC>
*/
#include <stdio.h>
#include <string.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example to demonstrate how to
* use libcurl's multi interface.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
#define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
static struct timeval tvnow(void)
{
struct timeval now;
/* time() returns the value of time in seconds since the epoch */
now.tv_sec = (long)time(NULL);
now.tv_usec = 0;
return now;
}
static long tvdiff(struct timeval newer, struct timeval older)
{
return (newer.tv_sec - older.tv_sec) * 1000 +
(newer.tv_usec - older.tv_usec) / 1000;
}
int main(void)
{
CURL *curl;
CURLM *mcurl;
int still_running = 1;
struct timeval mp_start;
curl_global_init(CURL_GLOBAL_DEFAULT);
curl = curl_easy_init();
if(!curl)
return 1;
mcurl = curl_multi_init();
if(!mcurl)
return 2;
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX/;UID=1");
/* Tell the multi stack about our easy handle */
curl_multi_add_handle(mcurl, curl);
/* Record the start time which we can use later */
mp_start = tvnow();
/* We start some action by calling perform right away */
curl_multi_perform(mcurl, &still_running);
while(still_running) {
struct timeval timeout;
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
int rc;
CURLMcode mc; /* curl_multi_fdset() return code */
long curl_timeo = -1;
/* Initialise the file descriptors */
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* Set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(mcurl, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
if(tvdiff(tvnow(), mp_start) > MULTI_PERFORM_HANG_TIMEOUT) {
fprintf(stderr,
"ABORTING: Since it seems that we would have run forever.\n");
break;
}
switch(rc) {
case -1: /* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(mcurl, &still_running);
break;
}
}
/* Always cleanup */
curl_multi_remove_handle(mcurl, curl);
curl_multi_cleanup(mcurl);
curl_easy_cleanup(curl);
curl_global_cleanup();
return 0;
}

67
proxy_c/third-lib/libcurl/docs/examples/imap-noop.c
View File

@@ -1,67 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to perform a noop
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to perform a noop using libcurl's IMAP
* capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is just the server URL */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");
/* Set the NOOP command */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "NOOP");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

71
proxy_c/third-lib/libcurl/docs/examples/imap-search.c
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@@ -1,71 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to search for new e-mails
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to search for new messages using
* libcurl's IMAP capabilities.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the SEARCH command specifing what we want to search for. Note that
* this can contain a message sequence set and a number of search criteria
* keywords including flags such as ANSWERED, DELETED, DRAFT, FLAGGED, NEW,
* RECENT and SEEN. For more information about the search criteria please
* see RFC-3501 section 6.4.4. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "SEARCH NEW");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

92
proxy_c/third-lib/libcurl/docs/examples/imap-ssl.c
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@@ -1,92 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using SSL
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox. Note the use of
* imaps:// rather than imap:// to request a SSL based connection. */
curl_easy_setopt(curl, CURLOPT_URL,
"imaps://imap.example.com/INBOX/;UID=1");
/* If you want to connect to a site who isn't using a certificate that is
* signed by one of the certs in the CA bundle you have, you can skip the
* verification of the server's certificate. This makes the connection
* A LOT LESS SECURE.
*
* If you have a CA cert for the server stored someplace else than in the
* default bundle, then the CURLOPT_CAPATH option might come handy for
* you. */
#ifdef SKIP_PEER_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
#endif
/* If the site you're connecting to uses a different host name that what
* they have mentioned in their server certificate's commonName (or
* subjectAltName) fields, libcurl will refuse to connect. You can skip
* this check, but this will make the connection less secure. */
#ifdef SKIP_HOSTNAME_VERIFICATION
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
#endif
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

82
proxy_c/third-lib/libcurl/docs/examples/imap-store.c
View File

@@ -1,82 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example showing how to modify the properties of an e-mail
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to modify an existing mail using
* libcurl's IMAP capabilities with the STORE command.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This is the mailbox folder to select */
curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
/* Set the STORE command with the Deleted flag for message 1. Note that
* you can use the STORE command to set other flags such as Seen, Answered,
* Flagged, Draft and Recent. */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "STORE 1 +Flags \\Deleted");
/* Perform the custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
else {
/* Set the EXPUNGE command, although you can use the CLOSE command if you
* don't want to know the result of the STORE */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "EXPUNGE");
/* Perform the second custom request */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
}
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

92
proxy_c/third-lib/libcurl/docs/examples/imap-tls.c
View File

@@ -1,92 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* IMAP example using TLS
* </DESC>
*/
#include <stdio.h>
#include <curl/curl.h>
/* This is a simple example showing how to fetch mail using libcurl's IMAP
* capabilities. It builds on the imap-fetch.c example adding transport
* security to protect the authentication details from being snooped.
*
* Note that this example requires libcurl 7.30.0 or above.
*/
int main(void)
{
CURL *curl;
CURLcode res = CURLE_OK;
curl = curl_easy_init();
if(curl) {
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
/* This will fetch message 1 from the user's inbox */
curl_easy_setopt(curl, CURLOPT_URL,
"imap://imap.example.com/INBOX/;UID=1");
/* In this example, we'll start with a plain text connection, and upgrade
* to Transport Layer Security (TLS) using the STARTTLS command. Be careful
* of using CURLUSESSL_TRY here, because if TLS upgrade fails, the transfer
* will continue anyway - see the security discussion in the libcurl
* tutorial for more details. */
curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);
/* If your server doesn't have a valid certificate, then you can disable
* part of the Transport Layer Security protection by setting the
* CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST options to 0 (false).
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
* curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
*
* That is, in general, a bad idea. It is still better than sending your
* authentication details in plain text though. Instead, you should get
* the issuer certificate (or the host certificate if the certificate is
* self-signed) and add it to the set of certificates that are known to
* libcurl using CURLOPT_CAINFO and/or CURLOPT_CAPATH. See docs/SSLCERTS
* for more information. */
curl_easy_setopt(curl, CURLOPT_CAINFO, "/path/to/certificate.pem");
/* Since the traffic will be encrypted, it is very useful to turn on debug
* information within libcurl to see what is happening during the
* transfer */
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
/* Perform the fetch */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* Always cleanup */
curl_easy_cleanup(curl);
}
return (int)res;
}

56
proxy_c/third-lib/libcurl/docs/examples/makefile.dj
View File

@@ -1,56 +0,0 @@
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
TOPDIR = ../..
include $(TOPDIR)/packages/DOS/common.dj
CFLAGS += -DFALSE=0 -DTRUE=1
LIBS = $(TOPDIR)/lib/libcurl.a
ifeq ($(USE_SSL),1)
LIBS += $(OPENSSL_ROOT)/lib/libssl.a $(OPENSSL_ROOT)/lib/libcrypt.a
endif
ifeq ($(USE_IDNA),1)
LIBS += $(LIBIDN_ROOT)/lib/dj_obj/libidn.a -liconv
endif
LIBS += $(WATT32_ROOT)/lib/libwatt.a $(ZLIB_ROOT)/libz.a
include Makefile.inc
PROGRAMS = $(patsubst %,%.exe,$(check_PROGRAMS))
all: $(PROGRAMS)
@echo Welcome to libcurl example program
%.exe: %.c
$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
@echo
clean vclean realclean:
- rm -f $(PROGRAMS) depend.dj
-include depend.dj

177
proxy_c/third-lib/libcurl/docs/examples/multi-app.c
View File

@@ -1,177 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* A basic application source code using the multi interface doing two
* transfers in parallel.
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
/*
* Download a HTTP file and upload an FTP file simultaneously.
*/
#define HANDLECOUNT 2 /* Number of simultaneous transfers */
#define HTTP_HANDLE 0 /* Index for the HTTP transfer */
#define FTP_HANDLE 1 /* Index for the FTP transfer */
int main(void)
{
CURL *handles[HANDLECOUNT];
CURLM *multi_handle;
int still_running; /* keep number of running handles */
int i;
CURLMsg *msg; /* for picking up messages with the transfer status */
int msgs_left; /* how many messages are left */
/* Allocate one CURL handle per transfer */
for(i=0; i<HANDLECOUNT; i++)
handles[i] = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(handles[HTTP_HANDLE], CURLOPT_URL, "http://example.com");
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_URL, "ftp://example.com");
curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_UPLOAD, 1L);
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
for(i=0; i<HANDLECOUNT; i++)
curl_multi_add_handle(multi_handle, handles[i]);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(multi_handle, &still_running);
break;
}
} while(still_running);
/* See how the transfers went */
while((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
if(msg->msg == CURLMSG_DONE) {
int idx, found = 0;
/* Find out which handle this message is about */
for(idx=0; idx<HANDLECOUNT; idx++) {
found = (msg->easy_handle == handles[idx]);
if(found)
break;
}
switch(idx) {
case HTTP_HANDLE:
printf("HTTP transfer completed with status %d\n", msg->data.result);
break;
case FTP_HANDLE:
printf("FTP transfer completed with status %d\n", msg->data.result);
break;
}
}
}
curl_multi_cleanup(multi_handle);
/* Free the CURL handles */
for(i=0; i<HANDLECOUNT; i++)
curl_easy_cleanup(handles[i]);
return 0;
}

228
proxy_c/third-lib/libcurl/docs/examples/multi-debugcallback.c
View File

@@ -1,228 +0,0 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* <DESC>
* multi interface and debug callback
* </DESC>
*/
#include <stdio.h>
#include <string.h>
/* somewhat unix-specific */
#include <sys/time.h>
#include <unistd.h>
/* curl stuff */
#include <curl/curl.h>
typedef char bool;
#define TRUE 1
static
void dump(const char *text,
FILE *stream, unsigned char *ptr, size_t size,
bool nohex)
{
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %10.10ld bytes (0x%8.8lx)\n",
text, (long)size, (long)size);
for(i=0; i<size; i+= width) {
fprintf(stream, "%4.4lx: ", (long)i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++)
if(i+c < size)
fprintf(stream, "%02x ", ptr[i+c]);
else
fputs(" ", stream);
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if(nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stream, "%c",
(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if(nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
static
int my_trace(CURL *handle, curl_infotype type,
unsigned char *data, size_t size,
void *userp)
{
const char *text;
(void)userp;
(void)handle; /* prevent compiler warning */
switch(type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
}
dump(text, stderr, data, size, TRUE);
return 0;
}
/*
* Simply download a HTTP file.
*/
int main(void)
{
CURL *http_handle;
CURLM *multi_handle;
int still_running; /* keep number of running handles */
http_handle = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(http_handle, CURLOPT_URL, "http://www.example.com/");
curl_easy_setopt(http_handle, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
curl_multi_add_handle(multi_handle, http_handle);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
CURLMcode mc; /* curl_multi_fdset() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
timeout.tv_sec = curl_timeo / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
if(mc != CURLM_OK) {
fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
break;
}
/* On success the value of maxfd is guaranteed to be >= -1. We call
select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
to sleep 100ms, which is the minimum suggested value in the
curl_multi_fdset() doc. */
if(maxfd == -1) {
#ifdef _WIN32
Sleep(100);
rc = 0;
#else
/* Portable sleep for platforms other than Windows. */
struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
rc = select(0, NULL, NULL, NULL, &wait);
#endif
}
else {
/* Note that on some platforms 'timeout' may be modified by select().
If you need access to the original value save a copy beforehand. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
}
switch(rc) {
case -1:
/* select error */
still_running = 0;
printf("select() returns error, this is badness\n");
break;
case 0:
default:
/* timeout or readable/writable sockets */
curl_multi_perform(multi_handle, &still_running);
break;
}
} while(still_running);
curl_multi_cleanup(multi_handle);
curl_easy_cleanup(http_handle);
return 0;
}

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