- When using 'ignore client-updates;', the FQDN returned to the client

is no longer truncated to one octet.  [ISC-Bugs #20743]

server/ddns.c

@@ -589,7 +589,7 @@ ddns_updates(struct packet *packet, struct lease *lease, struct lease *old,
 			 */
 			memcpy(&bp->data[5], d1.data, d1.len);
 			if (!save_option_buffer(&fqdn_universe, options,
-						bp, &bp->data[5], 1,
+						bp, &bp->data[5], d1.len,
 						FQDN_FQDN, 0))
 				goto badfqdn;