From 8daafcc139333e6a9a19b41a668a0ee10eb538fd Mon Sep 17 00:00:00 2001
From: Kees Monshouwer <mind04@monshouwer.org>
Date: Mon, 30 Apr 2018 21:38:14 +0200
Subject: [PATCH] auth: speedup AXFR out for presigned zones.

---
 pdns/tcpreceiver.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/pdns/tcpreceiver.cc b/pdns/tcpreceiver.cc
index e1dfd2e55..6374e4ee2 100644
--- a/pdns/tcpreceiver.cc
+++ b/pdns/tcpreceiver.cc
@@ -811,9 +811,11 @@ int TCPNameserver::doAXFR(const DNSName &target, shared_ptr<DNSPacket> q, int ou
   }
 
   // Group records by name and type, signpipe stumbles over interrupted rrsets
-  sort(zrrs.begin(), zrrs.end(), [](const DNSZoneRecord& a, const DNSZoneRecord& b) {
-    return tie(a.dr.d_name, a.dr.d_type) < tie(b.dr.d_name, b.dr.d_type);
-  });
+  if(!presignedZone) {
+    sort(zrrs.begin(), zrrs.end(), [](const DNSZoneRecord& a, const DNSZoneRecord& b) {
+      return tie(a.dr.d_name, a.dr.d_type) < tie(b.dr.d_name, b.dr.d_type);
+    });
+  }
 
   if(rectify) {
     // set auth
-- 
2.40.0