mod_c2s: Validate that a 'to' attribute exists at all
Prevents traceback from nameprep(nil)
--- a/plugins/mod_c2s.lua Sat Nov 02 15:39:01 2019 +0100
+++ b/plugins/mod_c2s.lua Sat Nov 02 15:39:40 2019 +0100
@@ -56,6 +56,11 @@
function stream_callbacks.streamopened(session, attr)
local send = session.send;
+ if not attr.to then
+ session:close{ condition = "improper-addressing",
+ text = "A 'to' attribute is required on stream headers" };
+ return;
+ end
local host = nameprep(attr.to);
if not host then
session:close{ condition = "improper-addressing",