Prevent segfault in sv_ev_incoming_message()

Regards https://github.com/profanity-im/profanity/issues/1488

Actually I would have loved to see the stanza that caused the segfault
since I'm not entirely sure whether this actually means that we do
something wrong earlier on.

Right now I don't know why the to_jid should be empty.

Let's prevent the segfault for now and see whether we get further
bugreports later.

Segfaulting issue got introduced with dd566d8d561099bbfc81b2fab22318bbad0cf3da.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/event/server_events.c b/src/event/server_events.c
index 7cafd4df..d297b103 100644
--- a/src/event/server_events.c
+++ b/src/event/server_events.c
@@ -600,7 +600,9 @@ sv_ev_incoming_message(ProfMessage* message)
     if (message->is_mam) {
         char* mybarejid = connection_get_barejid();
         if (g_strcmp0(mybarejid, message->from_jid->barejid) == 0) {
-            looking_for_jid = message->to_jid->barejid;
+            if (message->to_jid) {
+                looking_for_jid = message->to_jid->barejid;
+            }
         }
         free(mybarejid);
     }