From c541004ced57ebe65f6008a8e59b166372f43e12 Mon Sep 17 00:00:00 2001
From: bert hubert <bert.hubert@netherlabs.nl>
Date: Wed, 9 Dec 2015 13:28:35 +0100
Subject: [PATCH] add makeOpt infrastructure so we can make DNSRecords with OPT
 pseudo record in there, ready for insertion

---
 pdns/dnsrecords.cc | 18 ++++++++++++++++++
 pdns/dnsrecords.hh |  3 ++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/pdns/dnsrecords.cc b/pdns/dnsrecords.cc
index 8684c2d75..3f4a069b7 100644
--- a/pdns/dnsrecords.cc
+++ b/pdns/dnsrecords.cc
@@ -531,6 +531,24 @@ bool getEDNSOpts(const MOADNSParser& mdp, EDNSOpts* eo)
   return false;
 }
 
+DNSRecord makeOpt(int udpsize, int extRCode, int Z)
+{
+  EDNS0Record stuff;
+  stuff.extRCode=0;
+  stuff.version=0;
+  stuff.Z=htons(Z);
+  DNSRecord dr;
+  memcpy(&dr.d_ttl, &stuff, sizeof(stuff));
+  dr.d_ttl=ntohl(dr.d_ttl);
+  dr.d_name=DNSName(".");
+  dr.d_type = QType::OPT;
+  dr.d_class=udpsize;
+  dr.d_place=DNSResourceRecord::ADDITIONAL;
+  dr.d_content = std::make_shared<OPTRecordContent>();
+  // if we ever do options, I think we stuff them into OPTRecordContent::data
+  return dr;
+}
+
 
 void reportBasicTypes()
 {
diff --git a/pdns/dnsrecords.hh b/pdns/dnsrecords.hh
index cc38d1b05..768ddeb23 100644
--- a/pdns/dnsrecords.hh
+++ b/pdns/dnsrecords.hh
@@ -247,6 +247,7 @@ private:
 class OPTRecordContent : public DNSRecordContent
 {
 public:
+  OPTRecordContent(){}
   includeboilerplate(OPT)
   void getData(vector<pair<uint16_t, string> > &opts);
 private:
@@ -704,7 +705,7 @@ struct EDNSOpts
 
 class MOADNSParser;
 bool getEDNSOpts(const MOADNSParser& mdp, EDNSOpts* eo);
-
+DNSRecord makeOpt(int udpsize, int extRCode, int Z);
 void reportBasicTypes();
 void reportOtherTypes();
 void reportAllTypes();
-- 
2.40.0