fix: Null function pointer dereference.

TokTok · Feb 22, 2022 · b8ce394 · b8ce394
1 parent 2760966
commit b8ce394
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/toxcore/tox.c b/toxcore/tox.c
@@ -115,7 +115,10 @@ static void tox_log_handler(void *context, Logger_Level level, const char *file,
 {
     Tox *tox = (Tox *)context;
     assert(tox != nullptr);
-    tox->log_callback(tox, (Tox_Log_Level)level, file, line, func, message, userdata);
+
+    if (tox->log_callback != nullptr) {
+        tox->log_callback(tox, (Tox_Log_Level)level, file, line, func, message, userdata);
+    }
 }
 
 static m_self_connection_status_cb tox_self_connection_status_handler;