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/*
* log - print and/or log messages
*
* Copyright 2011 Enrico Zini <enrico@enricozini.org>
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "log.h"
#include <syslog.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/time.h>
static const struct log_config* config = 0;
void log_config_init(struct log_config* conf)
{
conf->program_name = 0;
conf->log_to_syslog = true;
conf->log_to_stderr = true;
conf->log_level = LOG_INFO;
}
void log_start(const struct log_config* conf)
{
config = conf;
if (config->log_to_syslog)
openlog("nodm", LOG_PID, LOG_AUTHPRIV);
}
void log_end()
{
if (config->log_to_syslog)
closelog();
}
static void log_common(int prio, const char* fmt, va_list ap)
{
if (config->log_to_stderr)
{
va_list loc;
va_copy(loc, ap);
struct timeval now;
gettimeofday(&now, NULL);
fprintf(stderr, "%u.%u %s:",
(unsigned)now.tv_sec,
(unsigned)now.tv_usec,
config->program_name);
vfprintf(stderr, fmt, loc);
va_end(loc);
fputc('\n', stderr);
}
if (config->log_to_syslog)
{
va_list loc;
va_copy(loc, ap);
vsyslog(prio, fmt, loc);
va_end(loc);
}
}
bool log_verb(const char* fmt, ...)
{
if (config->log_level < NODM_LL_VERB) return false;
if (fmt == NULL) return true;
va_list ap;
va_start(ap, fmt);
log_common(LOG_INFO, fmt, ap);
va_end(ap);
return true;
}
bool log_info(const char* fmt, ...)
{
if (config->log_level < NODM_LL_INFO) return false;
if (fmt == NULL) return true;
va_list ap;
va_start(ap, fmt);
log_common(LOG_NOTICE, fmt, ap);
va_end(ap);
return true;
}
bool log_warn(const char* fmt, ...)
{
if (config->log_level < NODM_LL_WARN) return false;
if (fmt == NULL) return true;
va_list ap;
va_start(ap, fmt);
log_common(LOG_WARNING, fmt, ap);
va_end(ap);
return true;
}
bool log_err(const char* fmt, ...)
{
if (config->log_level < NODM_LL_ERR) return false;
if (fmt == NULL) return true;
va_list ap;
va_start(ap, fmt);
log_common(LOG_ERR, fmt, ap);
va_end(ap);
return true;
}
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