From 0ef9fe22f56ef3ff202f88426c3ee48c15e4a71e Mon Sep 17 00:00:00 2001
From: Ralph Boehme <slow@samba.org>
Date: Fri, 26 Nov 2021 11:59:45 +0100
Subject: [PATCH] smbd: s3-dsgetdcname: handle num_ips == 0

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14923

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Dec  3 12:54:04 UTC 2021 on sn-devel-184

(cherry picked from commit 5e3df5f9ee64a80898f73585b19113354f463c44)
---
 source3/libsmb/dsgetdcname.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source3/libsmb/dsgetdcname.c b/source3/libsmb/dsgetdcname.c
index f8ae96109b71..5954e48d747b 100644
--- a/source3/libsmb/dsgetdcname.c
+++ b/source3/libsmb/dsgetdcname.c
@@ -572,6 +572,10 @@ static NTSTATUS discover_dc_dns(TALLOC_CTX *mem_ctx,
 	for (i = 0; i < numdcs; i++) {
 		size_t j;
 
+		if (dcs[i].num_ips == 0) {
+			continue;
+		}
+
 		dclist[ret_count].hostname =
 			talloc_move(dclist, &dcs[i].hostname);
 
-- 
2.33.1