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/* logger.c
*
* Tox DHT bootstrap daemon.
*
* Copyright (C) 2015 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* 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 "logger.h"
#include "global.h"
#include <syslog.h>
#include <stdarg.h>
#include <stdio.h>
typedef struct Logger {
LOGGER_BACKEND backend;
} Logger;
Logger* new_logger(LOGGER_BACKEND backend)
{
if (backend == LOGGER_BACKEND_SYSLOG) {
openlog(DAEMON_NAME, LOG_NOWAIT | LOG_PID, LOG_DAEMON);
}
Logger* logger = malloc(sizeof(Logger));
if (logger == NULL) {
return NULL;
}
logger->backend = backend;
return logger;
}
void kill_logger(Logger* logger)
{
if (backend == LOGGER_BACKEND_SYSLOG) {
closelog();
}
free(logger);
}
int level_syslog(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;
}
}
void log_syslog(LOG_LEVEL level, const char *format, va_list args)
{
vsyslog(level_syslog(level), format, args);
}
FILE* level_stdout(LOG_LEVEL level)
{
switch (level) {
case LOG_LEVEL_INFO:
return stdout;
case LOG_LEVEL_WARNING: // intentional fallthrough
case LOG_LEVEL_ERROR:
return stderr;
}
}
void log_stdout(LOG_LEVEL level, const char *format, va_list args)
{
vfprintf(level_stdout(level), format, args);
}
void log(Logger* logger, LOG_LEVEL level, const char *format, ...)
{
va_list args;
va_start(args, format);
switch (logger->backend) {
case LOGGER_BACKEND_SYSLOG:
log_syslog(level, format, args);
break;
case LOGGER_BACKEND_STDOUT:
log_stdout(level, format, args);
break;
}
va_end(args);
}
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