From c8416cc17d3fc79bdcae59f418375a60330adaca Mon Sep 17 00:00:00 2001
From: Deomid Ryabkov <rojer@cesanta.com>
Date: Fri, 26 May 2017 15:38:20 +0100
Subject: [PATCH] NULL out name server field properly

Fixes https://github.com/cesanta/mongoose-os/issues/260

PUBLISHED_FROM=e95076915d52edb2298e3ea386281c277e42c89a
---
 mongoose.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mongoose.c b/mongoose.c
index dc8170d6..c22c9dc5 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -11129,6 +11129,7 @@ int mg_resolve_async_opt(struct mg_mgr *mgr, const char *name, int query,
 
 void mg_set_nameserver(struct mg_mgr *mgr, const char *nameserver) {
   MG_FREE((char *) mgr->nameserver);
+  mgr->nameserver = NULL;
   if (nameserver != NULL) {
     mgr->nameserver = strdup(nameserver);
   }