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/*
Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS 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.
GlusterFS 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, see
<http://www.gnu.org/licenses/>.
*/
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include "daemon.h"
int
os_daemon_return (int nochdir, int noclose)
{
pid_t pid = -1;
int ret = -1;
FILE *ptr = NULL;
ret = fork();
if (ret)
return ret;
pid = setsid();
if (pid == -1) {
ret = -1;
goto out;
}
if (!nochdir)
ret = chdir("/");
if (!noclose) {
ptr = freopen (DEVNULLPATH, "r", stdin);
if (!ptr)
goto out;
ptr = freopen (DEVNULLPATH, "w", stdout);
if (!ptr)
goto out;
ptr = freopen (DEVNULLPATH, "w", stderr);
if (!ptr)
goto out;
}
ret = 0;
out:
return ret;
}
int
os_daemon (int nochdir, int noclose)
{
int ret = -1;
ret = os_daemon_return (nochdir, noclose);
if (ret <= 0)
return ret;
_exit (0);
}
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