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debug.c 3.13 KB
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荒野無燈 提交于 2017-05-16 01:16 . fix openlog first param.
/* vim: set et ts=4 sts=4 sw=4 : */
/********************************************************************\
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 of *
* the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License*
* along with this program; if not, contact: *
* *
* Free Software Foundation Voice: +1-617-542-5942 *
* 59 Temple Place - Suite 330 Fax: +1-617-542-2652 *
* Boston, MA 02111-1307, USA gnu@gnu.org *
* *
\********************************************************************/
/** @file debug.c
@brief Debug output routines
@author Copyright (C) 2004 Philippe April <papril777@yahoo.com>
*/
#include <stdio.h>
#include <errno.h>
#include <syslog.h>
#include <stdarg.h>
#include <time.h>
#include <unistd.h>
#include <signal.h>
#include "debug.h"
debugconf_t debugconf = {
.debuglevel = LOG_INFO,
.log_stderr = 1,
.log_syslog = 0,
.syslog_facility = LOG_USER
};
/** @internal
Do not use directly, use the debug macro */
void
_debug(const char *filename, int line, int level, const char *format, ...)
{
char buf[28];
va_list vlist;
time_t ts;
sigset_t block_chld;
time(&ts);
if (debugconf.debuglevel >= level) {
sigemptyset(&block_chld);
sigaddset(&block_chld, SIGCHLD);
sigprocmask(SIG_BLOCK, &block_chld, NULL);
if (level <= LOG_WARNING) {
fprintf(stderr, "[%d][%.24s][%u](%s:%d) ", level, ctime_r(&ts, buf), getpid(),
filename, line);
va_start(vlist, format);
vfprintf(stderr, format, vlist);
va_end(vlist);
fputc('\n', stderr);
} else if (debugconf.log_stderr) {
fprintf(stderr, "[%d][%.24s][%u](%s:%d) ", level, ctime_r(&ts, buf), getpid(),
filename, line);
va_start(vlist, format);
vfprintf(stderr, format, vlist);
va_end(vlist);
fputc('\n', stderr);
}
if (debugconf.log_syslog) {
openlog("xkcptun", LOG_PID, debugconf.syslog_facility);
va_start(vlist, format);
vsyslog(level, format, vlist);
va_end(vlist);
closelog();
}
sigprocmask(SIG_UNBLOCK, &block_chld, NULL);
}
}
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