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-rw-r--r--libglusterfs/src/daemon.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/libglusterfs/src/daemon.c b/libglusterfs/src/daemon.c
new file mode 100644
index 00000000000..a6476ec2e95
--- /dev/null
+++ b/libglusterfs/src/daemon.c
@@ -0,0 +1,68 @@
+/*
+ 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 Affero 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
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero 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);
+ ptr = freopen (DEVNULLPATH, "w", stdout);
+ ptr = freopen (DEVNULLPATH, "w", stderr);
+ }
+
+ 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);
+}