From 0ab1c7ef7683e2b58472d4ea2b826c085fda1d97 Mon Sep 17 00:00:00 2001
From: Dmitry Frank <mail@dmitryfrank.com>
Date: Fri, 2 Feb 2018 00:30:27 +0200
Subject: [PATCH] Fail if passed a NULL handler
Before it resulted in an endless recursion.
Resolves https://github.com/cesanta/mongoose/issues/871
CL: Mongoose Web Server: Fail if passed a NULL handler to `mg_bind` or `mg_bind_opt`.
PUBLISHED_FROM=376e5d330a643fa530f6a27a422a1500f986c721
---
mongoose.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/mongoose.c b/mongoose.c
index 74adbb5d7..e47801bbd 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -3046,6 +3046,11 @@ struct mg_connection *mg_bind_opt(struct mg_mgr *mgr, const char *address,
opts.user_data = user_data;
#endif
+ if (callback == NULL) {
+ MG_SET_PTRPTR(opts.error_string, "handler is required");
+ return NULL;
+ }
+
MG_COPY_COMMON_CONNECTION_OPTIONS(&add_sock_opts, &opts);
#if MG_ENABLE_TUN
--
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