From 6a1010f711ff2d31464a853e7f7ab7931a327d69 Mon Sep 17 00:00:00 2001
From: Pieter Lexis <pieter.lexis@powerdns.com>
Date: Wed, 15 Jul 2015 16:48:29 +0200
Subject: [PATCH] syncres: fix moreSpecificThan()

---
 pdns/syncres.cc | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pdns/syncres.cc b/pdns/syncres.cc
index 19b32741b7..eda5eaeaae 100644
--- a/pdns/syncres.cc
+++ b/pdns/syncres.cc
@@ -787,10 +787,9 @@ bool SyncRes::doCacheCheck(const DNSName &qname, const QType &qtype, vector<DNSR
   return false;
 }
 
-// FIXME400 use DNSName.isPartOf
 bool SyncRes::moreSpecificThan(const DNSName& a, const DNSName &b)
 {
-  return a.countLabels() > b.countLabels();
+  return (a.isPartOf(b) && a.countLabels() > b.countLabels());
 }
 
 struct speedOrder
@@ -1176,7 +1175,7 @@ int SyncRes::doResolveAt(set<DNSName> nameservers, DNSName auth, bool flawedNSSe
           done=true;
           ret.push_back(*i);
         }
-        else if(i->d_place==DNSResourceRecord::AUTHORITY && dottedEndsOn(qname,i->qname) && i->qtype.getCode()==QType::NS) {
+        else if(i->d_place==DNSResourceRecord::AUTHORITY && qname.isPartOf(i->qname) && i->qtype.getCode()==QType::NS) {
           if(moreSpecificThan(i->qname,auth)) {
             newauth=i->qname;
             LOG(prefix<<qname.toString()<<": got NS record '"<<i->qname.toString()<<"' -> '"<<i->content<<"'"<<endl);
-- 
2.47.2