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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include "glusterfs/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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