also check class in dnspacketlessthan

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@1688 d19b8d6e-7fed-0310-83ef-9ca221ded41b

diff --git a/pdns/dns.cc b/pdns/dns.cc
index d90bed20afb65c876ffb00d24c6fd244a4785148..c0a47739e969907cefc9215de73907ca877a99ee 100644 (file)
--- a/pdns/dns.cc
+++ b/pdns/dns.cc
@@ -84,7 +84,11 @@ bool dnspacketLessThan(const std::string& a, const std::string& b)
       
   uint16_t aQtype = aSafe[aPos]*256 + aSafe[aPos + 1];
   uint16_t bQtype = bSafe[bPos]*256 + bSafe[bPos + 1];
-  return aQtype < bQtype;
+  
+  uint16_t aQclass = aSafe[aPos+2]*256 + aSafe[aPos + 3];
+  uint16_t bQclass = bSafe[bPos+2]*256 + bSafe[bPos + 3];
+  
+  return boost::tie(aQtype, aQclass) < boost::tie(bQtype, bQclass);
 }