mirror of
https://github.com/miekg/dns.git
synced 2025-08-21 00:41:01 +02:00
41 lines
862 B
Go
41 lines
862 B
Go
package main
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// Send a DNS notify
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// (c) Miek Gieben - 2011
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import (
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"dns"
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"dns/resolver"
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"os"
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"fmt"
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)
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func main() {
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r := new(resolver.Resolver)
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qr := r.NewQuerier()
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r.Servers = []string{"127.0.0.1"}
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r.Timeout = 2
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r.Attempts = 1
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var in resolver.DnsMsg
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if len(os.Args) != 2 {
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fmt.Printf("%s NAMESERVER\n", os.Args[0])
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os.Exit(1)
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}
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m := new(dns.Msg)
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m.Question = make([]dns.Question, 1)
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m.Question[0] = dns.Question{"miek.nl", dns.TypeSOA, dns.ClassINET}
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m.MsgHdr.Opcode = dns.OpcodeNotify
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qr <- resolver.DnsMsg{m, nil}
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in = <-qr
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// if in.Dns != nil && in.Dns.Answer != nil {
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if in.Dns != nil {
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// fmt.Printf("%v\n", in.Dns.Answer[0])
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fmt.Printf("%v\n", in.Dns)
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}
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// Stop the resolver, send it a null mesg
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qr <- resolver.DnsMsg{nil, nil}
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<-qr
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}
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