Check for null in DNS handler

PUBLISHED_FROM=e8b719d491688032e6395b75d5859ffad7d7ea23

Check for null in DNS handler
PUBLISHED_FROM=e8b719d491688032e6395b75d5859ffad7d7ea23
56c687b3 · Alexander Alashkin · rojer · 083d3986 · 56c687b3
Commit 56c687b3 authored Apr 19, 2016 by Alexander Alashkin Committed by rojer Apr 19, 2016
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Showing with 5 additions and 1 deletion

mongoose.c mongoose.c +5 -1

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--- a/mongoose.c
+++ b/mongoose.c
@@ -9357,10 +9357,14 @@ static void mg_resolve_async_eh(struct mg_connection *nc, int ev, void *data) {
  struct mg_resolve_async_request *req;
  struct mg_dns_message *msg;

-  DBG(("ev=%d", ev));
+  DBG(("ev=%d user_data=%p", ev, nc->user_data));

  req = (struct mg_resolve_async_request *) nc->user_data;

+  if (req == NULL) {
+    return;
+  }
+
  switch (ev) {
    case MG_EV_CONNECT:
    case MG_EV_POLL: