From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Wed, 10 Jul 2019 08:01:25 +0000 (+0200)
Subject: ixfrdist: limit XFR chunk size to 16k
X-Git-Tag: dnsdist-1.4.0-rc1~57^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a66a8f7171092733b7491b14c09d0e4fc5965006;p=thirdparty%2Fpdns.git

ixfrdist: limit XFR chunk size to 16k
---

diff --git a/pdns/ixfrdist.cc b/pdns/ixfrdist.cc
index d23d554cbe..0b7f58f235 100644
--- a/pdns/ixfrdist.cc
+++ b/pdns/ixfrdist.cc
@@ -573,7 +573,7 @@ static bool addRecordToWriter(DNSPacketWriter& pw, const DNSName& zoneName, cons
 {
   pw.startRecord(record.d_name + zoneName, record.d_type, record.d_ttl, QClass::IN, DNSResourceRecord::ANSWER, compress);
   record.d_content->toPacket(pw);
-  if (pw.size() > 65535) {
+  if (pw.size() > 16384) {
     pw.rollback();
     return false;
   }