resolve: refuse invalid service without type field

Fixes Fixes #33935. (cherry picked from commit b48ab08732a76b7337628e1e716f11c687000903) (cherry picked from commit 0195db6e919e80bdd6b4b706ebc24d5e935f5422) (cherry picked from commit 7b1bb6e)
bluca · Aug 19, 2024 · bafd8fc · bafd8fc
1 parent 3b1f76d
commit bafd8fc
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/resolve/resolved-bus.c b/src/resolve/resolved-bus.c
@@ -1135,6 +1135,11 @@ static void resolve_service_all_complete(DnsQuery *query) {
         if (r < 0)
                 goto finish;
 
+        if (isempty(type)) {
+                r = reply_method_errorf(q, BUS_ERROR_NO_SUCH_SERVICE, "'%s' does not provide valid service", dns_query_string(q));
+                goto finish;
+        }
+
         r = sd_bus_message_append(
                         reply,
                         "ssst",