catch signals in the async dns daemon and allow it to auto-restart if

necessary
(This used to be commit fa599067f074647a5bad2ffd0fce12ae0a4e43d2)

1 files changed, 9 insertions, 0 deletions

diff --git a/source3/nmbd/asyncdns.c b/source3/nmbd/asyncdns.c
index f15880080f..57d0eda9b3 100644
--- a/source3/nmbd/asyncdns.c
+++ b/source3/nmbd/asyncdns.c
@@ -128,6 +128,10 @@ void start_async_dns(void)
 	fd_in = fd2[0];
 	fd_out = fd1[1];
 
+	signal(SIGUSR2, SIG_IGN);
+	signal(SIGUSR1, SIG_IGN);
+	signal(SIGHUP, SIG_IGN);
+
 	asyncdns_process();
 }
 
@@ -167,6 +171,11 @@ void run_dns_queue(void)
 	if (fd_in == -1)
 		return;
 
+	if (!process_exists(child_pid)) {
+		close(fd_in);
+		start_async_dns();
+	}
+
 	if ((size=read_data(fd_in, (char *)&r, sizeof(r))) != sizeof(r)) {
 		if (size) {
 			DEBUG(0,("Incomplete DNS answer from child!\n"));