resolve: drop unnecessary else, and add short comment

2022-07-09 05:20:09 +09:00
parent c3dbb13288
commit 4b2ceb8a48
1 changed files with 4 additions and 3 deletions
@@ -1568,11 +1568,12 @@ static usec_t transaction_get_resend_timeout(DnsTransaction *t) {
                return DNS_TIMEOUT_USEC;

        case DNS_PROTOCOL_MDNS:
-                assert(t->n_attempts > 0);
                if (t->probing)
                        return MDNS_PROBING_INTERVAL_USEC;
-                else
-                        return (1 << (t->n_attempts - 1)) * USEC_PER_SEC;
+
+                /* See RFC 6762 Section 5.1 suggests that timeout should be a few seconds. */
+                assert(t->n_attempts > 0);
+                return (1 << (t->n_attempts - 1)) * USEC_PER_SEC;

        case DNS_PROTOCOL_LLMNR:
                return t->scope->resend_timeout;