From: Kees Monshouwer <mind04@monshouwer.org>
Date: Wed, 28 Aug 2013 20:38:20 +0000 (+0200)
Subject: send empty SERVFAIL on exeeded retargetcount and log failures
X-Git-Tag: rec-3.6.0-rc1~474^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=75c8ebb4ef1966a5e3a73bc162dc9b85e8732400;p=pdns

send empty SERVFAIL on exeeded retargetcount and log failures
---

diff --git a/pdns/packethandler.cc b/pdns/packethandler.cc
index cf9cdbee8..33945b2a6 100644
--- a/pdns/packethandler.cc
+++ b/pdns/packethandler.cc
@@ -1209,6 +1209,9 @@ DNSPacket *PacketHandler::questionOrRecurse(DNSPacket *p, bool *shouldRecurse)
 
   retargeted:;
     if(retargetcount > 10) {    // XXX FIXME, retargetcount++?
+      L<<Logger::Warning<<"Abort CNAME chain resolution after "<<--retargetcount<<" redirects, sending out servfail. Initial query: '"<<p->qdomain<<"'"<<endl;
+      delete r;
+      r=p->replyPacket();
       r->setRcode(RCode::ServFail);
       return r;
     }