Fix examples and add notify prog

Show how simple a dns-notify becomes.

TODO

@@ -1,6 +1,8 @@
 Todo:
 Short term:
+* Create example notify
 * NSEC(3) secure denial of existence, support the type bitmap
+    - need base32 for Nsec3
 * TKEY -- RFC 2930 - validation
 * TSIG -- RFC 4635 - validation
 * Parsing from strings

_examples/Makefile

@@ -4,6 +4,7 @@ all:
 	gomake -C chaos
 	gomake -C dnssectest
 	gomake -C axfr
+	gomake -C notify
 	gomake -C zlutser
 
 clean:
@@ -12,4 +13,5 @@ clean:
 	gomake -C chaos clean
 	gomake -C dnssectest clean
 	gomake -C axfr clean
+	gomake -C notify clean
 	gomake -C zlutser clean

_examples/notify/Makefile

@@ -0,0 +1,7 @@
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+include $(GOROOT)/src/Make.inc
+TARG=notify
+GOFILES=notify.go
+include $(GOROOT)/src/Make.cmd

_examples/notify/notify.go

@@ -0,0 +1,40 @@
+package main
+
+// Send a DNS notify
+// (c) Miek Gieben - 2011
+import (
+	"dns"
+        "dns/resolver"
+	"os"
+	"fmt"
+)
+
+func main() {
+	r := new(resolver.Resolver)
+	qr := r.NewQuerier()
+	r.Servers = []string{"127.0.0.1"}
+	r.Timeout = 2
+	r.Attempts = 1
+	var in resolver.DnsMsg
+
+	if len(os.Args) != 2 {
+		fmt.Printf("%s NAMESERVER\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	m := new(dns.Msg)
+	m.Question = make([]dns.Question, 1)
+        m.Question[0] = dns.Question{"miek.nl", dns.TypeSOA, dns.ClassINET}
+        m.MsgHdr.Opcode = dns.OpcodeNotify
+        qr <- resolver.DnsMsg{m, nil}
+        in = <-qr
+//        if in.Dns != nil && in.Dns.Answer != nil {
+        if in.Dns != nil {
+//                fmt.Printf("%v\n", in.Dns.Answer[0])
+                fmt.Printf("%v\n", in.Dns)
+        }
+
+	// Stop the resolver, send it a null mesg
+	qr <- resolver.DnsMsg{nil, nil}
+	<-qr
+}

_examples/q/q.go

@@ -80,9 +80,9 @@ FLAGS:
 	if *dnssec {
 		opt := new(dns.RR_OPT)
 		opt.Hdr = dns.RR_Header{Name: "", Rrtype: dns.TypeOPT}
-		opt.Version(0, true)
-		opt.DoBit(true, true)
-		opt.UDPSize(4096, true)
+		opt.SetVersion(0)
+		opt.SetDo()
+		opt.SetUDPSize(4096)
 		m.Extra = make([]dns.RR, 1)
 		m.Extra[0] = opt
 	}

_examples/zlutser/zlutser.go

@@ -81,9 +81,9 @@ FLAGS:
 	// set the do bit
 	opt := new(dns.RR_OPT)
 	opt.Hdr = dns.RR_Header{Name: "", Rrtype: dns.TypeOPT}
-	opt.Version(0, true)
-	opt.DoBit(true, true)
-	opt.UDPSize(4096, true)
+	opt.SetVersion(0)
+	opt.SetDo()
+	opt.SetUDPSize(4096)
 	m.Extra = make([]dns.RR, 1)
 	m.Extra[0] = opt
 

resolver/resolverEdns_test.go

@@ -17,7 +17,6 @@ func TestResolverEdns(t *testing.T) {
 	m := new(dns.Msg)
 	m.MsgHdr.RecursionDesired = true //only set this bit
 	m.Question = make([]dns.Question, 1)
-	m.Extra = make([]dns.RR, 1)
 
 	// Add EDNS rr
 	edns := new(dns.RR_OPT)
@@ -25,13 +24,14 @@ func TestResolverEdns(t *testing.T) {
 	edns.Hdr.Rrtype = dns.TypeOPT
 	// You can handle an OTP RR as any other, but there
 	// are some convience functions
-	edns.SetUDPSize(4096)
+	edns.SetUDPSize(2048)
 	edns.SetDo()
 	edns.Option = make([]dns.Option, 1)
 	edns.SetNsidToHex("") // Empty to request it
 
 	// ask something
-	m.Question[0] = dns.Question{"miek.nl", dns.TypeA, dns.ClassINET}
+	m.Question[0] = dns.Question{"powerdns.nl", dns.TypeDNSKEY, dns.ClassINET}
+	m.Extra = make([]dns.RR, 1)
 	m.Extra[0] = edns
 
 	ch <- DnsMsg{m, nil}

types.go

@@ -460,7 +460,7 @@ func (rr *RR_DNSKEY) String() string {
 		" " + strconv.Itoa(int(rr.Flags)) +
 		" " + strconv.Itoa(int(rr.Protocol)) +
 		" " + strconv.Itoa(int(rr.Algorithm)) +
-		" " + rr.PubKey // encoding/base64
+		" " + rr.PubKey
 }
 
 type RR_NSEC3 struct {