1 files changed, 65 insertions, 0 deletions
diff --git a/libglusterfs/src/daemon.c b/libglusterfs/src/daemon.c
new file mode 100644
index 00000000000..0a3e5438325
--- /dev/null
+++ b/libglusterfs/src/daemon.c
@@ -0,0 +1,65 @@
+/*
+  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 <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);
+}