Reparent the process that executes the window= command from the ttys

to the init. This prevents zombies from being accumulated.

PR:		bin/64198
Tested by:	Eugene Grosbein <eugen at www svzserv kemerovo su>
Approved by:	kan (mentor)
MFC after:	1 month

1 files changed, 13 insertions, 1 deletions

diff --git a/sbin/init/init.c b/sbin/init/init.c
index 393955f..eb0569a 100644
--- a/sbin/init/init.c
+++ b/sbin/init/init.c
@@ -1066,6 +1066,7 @@ start_window_system(session_t *sp)
 	pid_t pid;
 	sigset_t mask;
 	char term[64], *env[2];
+	int status;
 
 	if ((pid = fork()) == -1) {
 		emergency("can't fork for window system on port %s: %m",
@@ -1073,9 +1074,20 @@ start_window_system(session_t *sp)
 		/* hope that getty fails and we can try again */
 		return;
 	}
-
 	if (pid)
+	{
+		waitpid(-1, &status, 0);
 		return;
+	}
+
+	/* reparent window process to the init to not make a zombie on exit */
+	if ((pid = fork()) == -1) {
+		emergency("can't fork for window system on port %s: %m",
+			sp->se_device);
+		_exit(1);
+	}
+	if (pid)
+		_exit(0);
 
 	sigemptyset(&mask);
 	sigprocmask(SIG_SETMASK, &mask, (sigset_t *) 0);