ocs init

plat/iptrans/src/errorlog.c

@@ -0,0 +1,131 @@
+/* Error routines for programs that can run as a daemon. */
+
+#include    <errno.h>        /* for definition of errno */
+#include    <stdarg.h>        /* ANSI C header file */
+#include    <syslog.h>
+#include    "./include/iptrans.h"
+
+static void    log_doit(int, int, const char *, va_list ap);
+
+int    debug=1;    /* caller must define and set this:
+                   nonzero if interactive, zero if daemon */
+
+int    under_develop=1;    /* caller must define and set this:
+                   nonzero if under develop, zero if not */
+
+
+/*@ignore@*/
+/* Initialize syslog(), if running as daemon.  */
+void
+log_open(const char *ident, int option, int facility)
+{
+    if (debug == 0)
+        openlog(ident, option, facility);
+}
+
+/*
+** Nonfatal error related to a system call.
+** Print a message with the system's errno value and return.
+*/
+
+void
+log_ret(const char *fmt, ...)
+{
+    va_list        ap;
+
+    va_start(ap, fmt);
+    log_doit(1, LOG_ERR, fmt, ap);
+    va_end(ap);
+    return;
+}
+
+/*
+** Fatal error related to a system call.
+** Print a message and terminate.
+*/
+
+void
+log_sys(const char *fmt, ...)
+{
+    va_list        ap;
+
+    va_start(ap, fmt);
+    log_doit(1, LOG_ERR, fmt, ap);
+    va_end(ap);
+    exit(2);
+}
+
+/*
+** Nonfatal error unrelated to a system call.
+** Print a message and return.
+*/
+
+void
+log_msg(const char *fmt, ...)
+{
+    va_list        ap;
+
+    va_start(ap, fmt);
+    log_doit(0, LOG_ERR, fmt, ap);
+    va_end(ap);
+    return;
+}
+
+/*
+** Debug message unrelated to a system call.
+** Print a message and return while .
+*/
+
+void
+log_debug(const char *fmt, ...)
+{
+    va_list        ap;
+
+    if (!under_develop) return;
+    va_start(ap, fmt);
+    log_doit(0, LOG_ERR, fmt, ap);
+    va_end(ap);
+    return;
+}
+
+/*
+** Fatal error unrelated to a system call.
+** Print a message and terminate.
+*/
+
+void
+log_quit(const char *fmt, ...)
+{
+    va_list        ap;
+
+    va_start(ap, fmt);
+    log_doit(0, LOG_ERR, fmt, ap);
+    va_end(ap);
+    exit(2);
+}
+
+/*
+** Print a message and return to caller.
+** Caller specifies "errnoflag" and "priority".
+*/
+
+static void
+log_doit(int errnoflag, int priority, const char *fmt, va_list ap)
+{
+    int        errno_save;
+    char    buf[MAXLINE];
+
+    errno_save = errno;        /* value caller might want printed */
+    vsprintf(buf, fmt, ap);
+    if (errnoflag)
+        sprintf(buf+strlen(buf), ": %s", strerror(errno_save));
+    strcat(buf, "\n");
+    if (debug) {
+        fflush(stdout);
+        fputs(buf, stderr);
+        fflush(stderr);
+    } else
+        syslog(priority, "%s", buf);
+    return;
+}
+/*@end@*/