1 files changed, 66 insertions, 0 deletions
diff --git a/libglusterfs/src/daemon.c b/libglusterfs/src/daemon.c
new file mode 100644
index 000000000..348e3ad40
--- /dev/null
+++ b/libglusterfs/src/daemon.c
@@ -0,0 +1,66 @@
+/*
+  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 "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);
+}