Fix opt pseudo section stuff

_examples/q/q.go

@@ -104,7 +104,7 @@ Flags:
 	m.MsgHdr.RecursionDesired = *rd
 	m.Question = make([]dns.Question, 1)
 	if *dnssec || *nsid {
-		opt := new(dns.RR_OPT)
+                opt := dns.NewRR(dns.TypeOPT).(*dns.RR_OPT)
 		opt.SetDo()
 		opt.SetVersion(0)
 		opt.SetUDPSize(dns.DefaultMsgSize)

dns.go

@@ -15,7 +15,7 @@
 //
 // Or directly from a string:
 //
-//      mx := NewRR("miek.nl IN MX 10 mx.miek.nl.")
+//      mx := NewRRString("miek.nl IN MX 10 mx.miek.nl.")
 // 
 // The package dns supports (async) querying/replying, incoming/outgoing Axfr/Ixfr, 
 // TSIG, EDNS0, dynamic updates, notifies and DNSSEC validation/signing.

parse_test.go

@@ -142,7 +142,7 @@ func TestParseFailure(t *testing.T) {
 //	        "miek.nl. PA MX 10 miek.nl.",
 
         for _, t1 := range tests {
-	        _, err := NewRR(t1)
+	        _, err := NewRRString(t1)
                 if err == nil {
                         t.Log("Should have triggered an error")
                         t.Fail()

types.go

@@ -147,12 +147,20 @@ func (q *Question) String() string {
 	return s
 }
 
-// NewRR returns the last RR contained in s.
-func NewRR(s string) (RR, os.Error) {
+// NewRRString returns the last RR contained in s.
+func NewRRString(s string) (RR, os.Error) {
 	p := NewParser(strings.NewReader(s))
 	return p.RR()
 }
 
+// NewRR returns a new RR with the hdr.Rrtype also set.
+// If the type i is not known, nil is returned.
+func NewRR(i int) RR {
+        r := rr_mk[i]()
+        r.Header().Rrtype = uint16(i)
+        return r
+}
+
 type RR_CNAME struct {
 	Hdr   RR_Header
 	Cname string "domain-name"