+ dns_query_complete(q, DNS_QUERY_TIMEOUT);
+ return 0;
+}
+
+static int dns_query_add_transaction(DnsQuery *q, DnsScope *s) {
+ DnsQueryTransaction *t;
+ int r;
+
+ assert(q);
+
+ r = set_ensure_allocated(&q->transactions, NULL, NULL);
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(transactions_by_scope, t, s->transactions)
+ if (dns_question_is_superset(t->question, q->question))
+ break;
+
+ if (!t) {
+ r = dns_query_transaction_new(&t, s, q->question);
+ if (r < 0)
+ return r;
+ }
+
+ r = set_ensure_allocated(&t->queries, NULL, NULL);
+ if (r < 0)
+ goto fail;
+
+ r = set_put(t->queries, q);
+ if (r < 0)
+ goto fail;
+
+ r = set_put(q->transactions, t);
+ if (r < 0) {
+ set_remove(t->queries, q);
+ goto fail;
+ }
+