From 3498e86d8b8cbb89be316c19c09264ba5afd50be Mon Sep 17 00:00:00 2001
From: microDev <70126934+microDev1@users.noreply.github.com>
Date: Wed, 21 Sep 2022 21:03:07 +0530
Subject: [PATCH] prevent crash when hostname is null

---
 components/mdns/mdns.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/mdns/mdns.c b/components/mdns/mdns.c
index 4de991982..d005ba483 100644
--- a/components/mdns/mdns.c
+++ b/components/mdns/mdns.c
@@ -2801,7 +2801,8 @@ static int _mdns_check_aaaa_collision(esp_ip6_addr_t * ip, mdns_if_t tcpip_if)
 
 static bool _hostname_is_ours(const char * hostname)
 {
-    if (strcasecmp(hostname, _mdns_server->hostname) == 0) {
+    if (!_str_null_or_empty(_mdns_server->hostname) &&
+        strcasecmp(hostname, _mdns_server->hostname) == 0) {
         return true;
     }
     mdns_host_item_t * host = _mdns_host_list;