avoid runtime fail with wrong arguments in upnp::update_map (#2094)

2017-06-20 15:06:14 -04:00 · 2017-06-20 15:06:14 -04:00 · 18eef80676
parent f6ca04638c
commit 18eef80676
1 changed files with 3 additions and 0 deletions
--- a/src/upnp.cpp
+++ b/src/upnp.cpp
@ -778,6 +778,9 @@ void upnp::update_map(rootdevice& d, int const i)

 	if (d.upnp_connection) return;

+	// this should not happen, but in case it does, don't fail at runtime
+	if (i >= d.mapping.end_index()) return;
+
 	std::shared_ptr<upnp> me(self());

 	mapping_t& m = d.mapping[i];