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/*
* Copyright (C) 2015 Alexandros Frantzis
* Author: Alexandros Frantzis <alexandros.frantzis@canonical.com>
*
* 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 3 of the License, or (at your option) any later
* version. See http://www.gnu.org/copyleft/gpl.html the full text of the
* license.
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include "log-file.h"
int
log_file_open (const gchar *log_filename, LogMode log_mode)
{
int open_flags = O_WRONLY | O_CREAT;
int log_fd;
if (log_mode == LOG_MODE_BACKUP_AND_TRUNCATE)
{
/* Move old file out of the way */
g_autofree gchar *old_filename = NULL;
old_filename = g_strdup_printf ("%s.old", log_filename);
rename (log_filename, old_filename);
open_flags |= O_TRUNC;
}
else if (log_mode == LOG_MODE_APPEND)
{
/* Keep appending to it */
open_flags |= O_APPEND;
}
else
{
g_warning ("Failed to open log file %s: invalid log mode %d specified",
log_filename, log_mode);
return -1;
}
/* Open file and log to it */
log_fd = open (log_filename, open_flags, 0600);
if (log_fd < 0)
g_warning ("Failed to open log file %s: %s", log_filename, g_strerror (errno));
return log_fd;
}
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