From: Kees Monshouwer <mind04@monshouwer.org>
Date: Sun, 10 Feb 2019 22:25:49 +0000 (+0100)
Subject: Do not compress the root
X-Git-Tag: auth-4.2.0-beta1~28^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F7472%2Fhead;p=thirdparty%2Fpdns.git

Do not compress the root
---

diff --git a/pdns/dnswriter.cc b/pdns/dnswriter.cc
index 02abb9f8a3..745e0387a1 100644
--- a/pdns/dnswriter.cc
+++ b/pdns/dnswriter.cc
@@ -79,7 +79,7 @@ void DNSPacketWriter::startRecord(const DNSName& name, uint16_t qtype, uint32_t
   commit();
   d_rollbackmarker=d_content.size();
 
-  if(compress && !name.empty() && d_qname==name) {  // don't do the whole label compression thing if we *know* we can get away with "see question" - except when compressing the root
+  if(compress && !name.isRoot() && d_qname==name) {  // don't do the whole label compression thing if we *know* we can get away with "see question" - except when compressing the root
     static unsigned char marker[2]={0xc0, 0x0c};
     d_content.insert(d_content.end(), (const char *) &marker[0], (const char *) &marker[2]);
   }