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/*
* Tox DHT bootstrap daemon.
* Syslog logging backend.
*/
/*
* Copyright © 2016-2017 The TokTok team.
* Copyright © 2015-2016 Tox project.
*
* This file is part of Tox, the free peer to peer instant messenger.
*
* Tox 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 3 of the License, or
* (at your option) any later version.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*/
#include "log_backend_syslog.h"
#include "global.h"
#include "../../../toxcore/ccompat.h"
#include <assert.h>
#include <stdio.h>
#include <syslog.h>
void log_backend_syslog_open(void)
{
openlog(DAEMON_NAME, LOG_NOWAIT | LOG_PID, LOG_DAEMON);
}
void log_backend_syslog_close(void)
{
closelog();
}
static int log_backend_syslog_level(LOG_LEVEL level)
{
switch (level) {
case LOG_LEVEL_INFO:
return LOG_INFO;
case LOG_LEVEL_WARNING:
return LOG_WARNING;
case LOG_LEVEL_ERROR:
return LOG_ERR;
}
return LOG_INFO;
}
void log_backend_syslog_write(LOG_LEVEL level, const char *format, va_list args)
{
va_list args2;
va_copy(args2, args);
int size = vsnprintf(nullptr, 0, format, args2);
va_end(args2);
assert(size >= 0);
if (size < 0) {
return;
}
VLA(char, buf, size + 1);
vsnprintf(buf, size + 1, format, args);
syslog(log_backend_syslog_level(level), "%s", buf);
}
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