daemon.c

/*
 * This file is part of Aquarium Control Center (aquacc).
 *
 * Copyright (C) 2012-2013 Cluytens David <david.cluytens@gmail.com>
 *
 * Aquarium Control Center (aquacc) 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.
 *
 * Aquarium Control Center (aquacc) 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 Aquarium Control Center (aquacc). If not, see <http://www.gnu.org/licenses/>.
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "daemon.h"
#include "config.h"

extern aquacc_config_t aquacc_config;


#if 1
int daemonize(void) {
	if (!aquacc_config.foreground) {
		daemon(0, 0);
	}
	return 0;
}
#else
int daemonize(void) {
	pid_t   pid, sid;

	pid = fork();
	if (pid < 0) {
		exit(EXIT_FAILURE);
	} else if (pid > 0) {
		exit(EXIT_SUCCESS);
	}   

	umask(0);
	sid = setsid();
	if (sid < 0) {
		exit(EXIT_FAILURE);
	}   

	if ((chdir("/")) < 0) {
		exit(EXIT_FAILURE);
	}   

	syslog(LOG_NOTICE, "aquacc started by User %d", getuid ());
	return 0;
}
#endif