X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/f578043391634ae1d345e84657fec7ecfb0f34a0..858fb9ebad77ceefc628344de26353d0a1936a9d:/socket.c

diff --git a/socket.c b/socket.c
index 790a86d9..674e3d7f 100644
--- a/socket.c
+++ b/socket.c
@@ -120,8 +120,6 @@ void start_accept_loop(int port, int (*fn)(int ))
 {
 	int s;
 
-	signal(SIGCHLD, SIG_IGN);
-
 	/* open an incoming socket */
 	s = open_socket_in(SOCK_STREAM, port);
 	if (s == -1)
@@ -155,6 +153,15 @@ void start_accept_loop(int port, int (*fn)(int ))
 
 		if (fd == -1) continue;
 
+		signal(SIGCHLD, SIG_IGN);
+
+		/* we shouldn't have any children left hanging around
+		   but I have had reports that on Digital Unix zombies
+		   are produced, so this ensures that they are reaped */
+#ifdef WNOHANG
+		waitpid(-1, NULL, WNOHANG);
+#endif
+
 		if (fork()==0) {
 			close(s);
 
@@ -274,27 +281,30 @@ become a daemon, discarding the controlling terminal
 ****************************************************************************/
 void become_daemon(void)
 {
-	if (fork())
+	int i;
+
+	if (fork()) {
 		_exit(0);
+	}
 
 	/* detach from the terminal */
 #ifdef HAVE_SETSID
 	setsid();
 #else
 #ifdef TIOCNOTTY
-	{
-		int i = open("/dev/tty", O_RDWR);
-		if (i >= 0) 
-			{
-				ioctl(i, (int) TIOCNOTTY, (char *)0);      
-				close(i);
-			}
+	i = open("/dev/tty", O_RDWR);
+	if (i >= 0) {
+		ioctl(i, (int) TIOCNOTTY, (char *)0);      
+		close(i);
 	}
 #endif /* TIOCNOTTY */
 #endif
-	close(0);
-	close(1);
-	close(2);
+	/* make sure that stdin, stdout an stderr don't stuff things
+           up (library functions, for example) */
+	for (i=0;i<3;i++) {
+		close(i); 
+		open("/dev/null", O_RDWR);
+	}
 }
 
 /*******************************************************************