From 7728b36a83fe20b366b1b6e72f3d0906ca89840c Mon Sep 17 00:00:00 2001
From: Anatol Pomozov <anatol.pomozov@gmail.com>
Date: Fri, 2 Sep 2011 16:26:09 -0700
Subject: Replace daemon() function with fork()

daemon() is a BSD-ism. Although it is available on many platforms
it is not a standard function. Some platforms (e.g. MacOSX) deprecated
it.

It is safer just to use fork() function that is a part of POSIX.
---
 util/ulockmgr_server.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

(limited to 'util')

diff --git a/util/ulockmgr_server.c b/util/ulockmgr_server.c
index 583fcf9..baef45d 100644
--- a/util/ulockmgr_server.c
+++ b/util/ulockmgr_server.c
@@ -352,11 +352,24 @@ int main(int argc, char *argv[])
 	if (*end)
 		goto out_inval;
 
-	if (daemon(0, 1) == -1) {
-		perror("ulockmgr_server: daemon");
+	/* demonize current process */
+	switch(fork()) {
+	case -1:
+		perror("ulockmgr_server: fork");
 		exit(1);
+	case 0:
+		break;
+	default:
+		_exit(0);
 	}
 
+	if (setsid() == -1) {
+		perror("ulockmgr_server: setsid");
+		exit(1);
+	}
+
+	(void) chdir("/");
+
 	sigemptyset(&empty);
 	sigprocmask(SIG_SETMASK, &empty, NULL);
 
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