Dont answer responses even in test code

_examples/reflect/reflect.go

@@ -32,6 +32,9 @@ func (s *server) ResponderUDP(c *net.UDPConn, a net.Addr, in []byte) {
                 // NXdomain 'n stuff
                 println("Unpacking failed")
         }
+        if inmsg.Hdr.Response == true {
+                return  // Don't answer responses
+        }
         m := new(dns.Msg)
         m.MsgHdr.Id = inmsg.MsgHdr.Id
         m.MsgHdr.Authoritative = true
@@ -63,7 +66,15 @@ func (s *server) ResponderUDP(c *net.UDPConn, a net.Addr, in []byte) {
 }
 
 func (s *server) ResponderTCP(c *net.TCPConn, in []byte) {
-        return
+        inmsg := new(dns.Msg)
+        if !inmsg.Unpack(in) {
+                // NXdomain 'n stuff
+                println("Unpacking failed")
+        }
+        if inmsg.Hdr.Response == true {
+                return  // Don't answer responses
+        }
+        return // we are lazy and don't support tcp
 }
 
 func main() {

_examples/rude/rude.go

@@ -25,6 +25,9 @@ func (s *server) ResponderUDP(c *net.UDPConn, a net.Addr, in []byte) {
 		// NXdomain 'n stuff
 		println("Unpacking failed")
 	}
+        if inmsg.MsgHdr.Response == true {
+                return // don't answer responses
+        }
 	m := new(dns.Msg)
 	m.MsgHdr.Id = inmsg.MsgHdr.Id
 	m.MsgHdr.Response = true

responder/responder_test.go

@@ -36,6 +36,11 @@ func createpkg(id uint16, tcp bool, remove net.Addr) []byte {
 func (s *myserv) ResponderUDP(c *net.UDPConn, a net.Addr, in []byte) {
 	inmsg := new(dns.Msg)
 	inmsg.Unpack(in)
+        if inmsg.MsgHdr.Response == true {
+                // Uh... answering to an response??
+                // dont think so
+                return
+        }
 	out := createpkg(inmsg.MsgHdr.Id, false, a)
 	SendUDP(out, c, a)
         // Meta.QLen/RLen/QueryStart/QueryEnd can be filled in at
@@ -45,6 +50,11 @@ func (s *myserv) ResponderUDP(c *net.UDPConn, a net.Addr, in []byte) {
 func (s *myserv) ResponderTCP(c *net.TCPConn, in []byte) {
 	inmsg := new(dns.Msg)
 	inmsg.Unpack(in)
+        if inmsg.MsgHdr.Response == true {
+                // Uh... answering to an response??
+                // dont think so
+                return
+        }
 	out := createpkg(inmsg.MsgHdr.Id, true, c.RemoteAddr())
 	SendTCP(out, c)
 }