Do not crash on an incoming message with 0 alias. (#751)

bakerstu · Nov 22, 2023 · 9018891 · 9018891
1 parent 2c8d383
commit 9018891
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/openlcb/AliasCache.cxx b/src/openlcb/AliasCache.cxx
@@ -515,7 +515,10 @@ NodeAlias AliasCache::lookup(NodeID id)
  */
 NodeID AliasCache::lookup(NodeAlias alias)
 {
-    HASSERT(alias != 0);
+    if (alias == 0)
+    {
+        return 0;
+    }
 
     auto it = aliasMap.find(alias);