From: Mark Andrews <marka@isc.org>
Date: Sat, 26 Mar 2016 21:25:44 +0000 (+1100)
Subject: attempt to create a node at the flushtree name
X-Git-Tag: v9.11.0a2~97
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=dd185fb371632b9cf1b7be3097960185c9645a09;p=thirdparty%2Fbind9.git

attempt to create a node at the flushtree name
---

diff --git a/lib/dns/cache.c b/lib/dns/cache.c
index f95e9e3fe8e..a21dda546a8 100644
--- a/lib/dns/cache.c
+++ b/lib/dns/cache.c
@@ -1216,10 +1216,16 @@ static isc_result_t
 cleartree(dns_db_t *db, dns_name_t *name) {
 	isc_result_t result, answer = ISC_R_SUCCESS;
 	dns_dbiterator_t *iter = NULL;
-	dns_dbnode_t *node = NULL;
+	dns_dbnode_t *node = NULL, *top = NULL;
 	dns_fixedname_t fnodename;
 	dns_name_t *nodename;
 
+	/*
+	 * Create the node if it doesn't exist so dns_dbiterator_seek()
+	 * can find it.  We will continue even if this fails.
+	 */
+	(void)dns_db_findnode(db, name, ISC_TRUE, &top);
+
 	dns_fixedname_init(&fnodename);
 	nodename = dns_fixedname_name(&fnodename);
 
@@ -1264,6 +1270,8 @@ cleartree(dns_db_t *db, dns_name_t *name) {
 		dns_db_detachnode(db, &node);
 	if (iter != NULL)
 		dns_dbiterator_destroy(&iter);
+	if (top != NULL)
+		dns_db_detachnode(db, &top);
 
 	return (answer);
 }