diff options
Diffstat (limited to 'libglusterfs/src/daemon.c')
| -rw-r--r-- | libglusterfs/src/daemon.c | 102 |
1 files changed, 53 insertions, 49 deletions
diff --git a/libglusterfs/src/daemon.c b/libglusterfs/src/daemon.c index 38dfd3f386b..0a3e5438325 100644 --- a/libglusterfs/src/daemon.c +++ b/libglusterfs/src/daemon.c @@ -1,61 +1,65 @@ /* - Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com> + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.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/>. + 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 (int nochdir, int noclose) +os_daemon_return(int nochdir, int noclose) { - pid_t pid = -1; - int ret = -1; - FILE *ptr = NULL; - - ret = fork(); - - switch (ret) { - case -1: - return (-1); - case 0: - break; - default: - _exit(0); - } - - pid = setsid(); - - if (pid == -1) { - ret = -1; - goto out; - } - - if (!nochdir) - ret = chdir("/"); - - if (!noclose) { - ptr = freopen ("/dev/null", "r", stdin); - ptr = freopen ("/dev/null", "w", stdout); - ptr = freopen ("/dev/null", "w", stderr); - } - - ret = 0; + 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; + 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); } |
