From 0804e231e40e700bb16e400a1eda4d87d4bbc432 Mon Sep 17 00:00:00 2001
From: Richard Sharpe <sharpe@samba.org>
Date: Wed, 21 Jul 2004 04:24:30 +0000
Subject: [PATCH] r1557: Add sigchld handling to winbindd. Next step is to have
 the child restarted if need be. We should also make sure the main line know
 we no longer have a child. (This used to be commit
 e3dc7934b50c8578d70fc01688a07bd369a7cf30)

---
 source3/nsswitch/winbindd.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/source3/nsswitch/winbindd.c b/source3/nsswitch/winbindd.c
index 50b6f0a87fb..d08aa84face 100644
--- a/source3/nsswitch/winbindd.c
+++ b/source3/nsswitch/winbindd.c
@@ -188,6 +188,17 @@ static void sighup_handler(int signum)
 	sys_select_signal();
 }
 
+static void sigchld_handler(int signum)
+{
+	pid_t pid;
+	int status;
+
+	while ((pid = wait(&status)) != -1 || errno == EINTR) {
+		continue; /* Reap children */
+	}
+	sys_select_signal();
+}
+
 /* React on 'smbcontrol winbindd reload-config' in the same way as on SIGHUP*/
 static void msg_reload_services(int msg_type, pid_t src, void *buf, size_t len)
 {
@@ -888,12 +899,14 @@ int main(int argc, char **argv)
 	BlockSignals(False, SIGUSR1);
 	BlockSignals(False, SIGUSR2);
 	BlockSignals(False, SIGHUP);
+	BlockSignals(False, SIGCHLD);
 
 	/* Setup signal handlers */
 	
 	CatchSignal(SIGINT, termination_handler);      /* Exit on these sigs */
 	CatchSignal(SIGQUIT, termination_handler);
 	CatchSignal(SIGTERM, termination_handler);
+	CatchSignal(SIGCHLD, sigchld_handler);
 
 	CatchSignal(SIGPIPE, SIG_IGN);                 /* Ignore sigpipe */
 
-- 
2.11.4.GIT