From: Marek Vavruša <marek.vavrusa@nic.cz>
Date: Tue, 21 Jul 2015 14:20:14 +0000 (+0200)
Subject: lib/zonecut: check if the label hopping failed
X-Git-Tag: v1.0.0-beta1~67
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18e97d8f466b0025dfe6aa90ed1f35e43f772ddf;p=thirdparty%2Fknot-resolver.git

lib/zonecut: check if the label hopping failed
---

diff --git a/lib/zonecut.c b/lib/zonecut.c
index 55d20c810..437192385 100644
--- a/lib/zonecut.c
+++ b/lib/zonecut.c
@@ -327,7 +327,7 @@ int kr_zonecut_find_cached(struct kr_context *ctx, struct kr_zonecut *cut, const
 	}
 
 	/* Start at QNAME parent. */
-	while (txn) {
+	while (txn && name) {
 		if (fetch_ns(ctx, cut, name, txn, timestamp) == 0) {
 			update_cut_name(cut, name);
 			return kr_ok();