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/*
* logging functions
*
* Copyright (C) 2016 LastPass.
*
* 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.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
*
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*
* See LICENSE.OpenSSL for more details regarding this exception.
*/
#include "util.h"
#include "log.h"
#include "config.h"
#include <fcntl.h>
#include <sys/time.h>
#define TIME_FMT "%lld.%06lld"
#define TIME_ARGS(tv) ((long long)(tv)->tv_sec), ((long long)(tv)->tv_usec)
int lpass_log_level()
{
char *log_level_str;
int level;
log_level_str = getenv("LPASS_LOG_LEVEL");
if (!log_level_str)
return LOG_NONE;
level = strtoul(log_level_str, NULL, 10);
return (enum log_level) level;
}
void lpass_log(enum log_level level, char *fmt, ...)
{
struct timeval tv;
struct timezone tz;
va_list ap;
_cleanup_fclose_ FILE *fp = NULL;
int req_level = lpass_log_level();
if (req_level < level)
return;
fp = lpass_log_open();
if (!fp)
return;
gettimeofday(&tv, &tz);
fprintf(fp, "<%d> [" TIME_FMT "] ", level, TIME_ARGS(&tv));
va_start(ap, fmt);
vfprintf(fp, fmt, ap);
va_end(ap);
fflush(fp);
}
FILE *lpass_log_open()
{
_cleanup_free_ char *upload_log_path = NULL;
if (lpass_log_level() < 0)
return NULL;
upload_log_path = config_path("lpass.log");
return fopen(upload_log_path, "a");
}
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