48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
package main
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import (
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"dns"
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"flag"
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"fmt"
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"strings"
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"time"
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)
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func main() {
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serial := flag.Int("serial", 0, "Perform an IXFR with the given serial")
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nameserver := flag.String("ns", "127.0.0.1:53", "Query this nameserver")
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tsig := flag.String("tsig", "", "request tsig with key: name:key (only hmac-md5)")
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flag.Parse()
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zone := flag.Arg(flag.NArg() - 1)
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client := dns.NewClient()
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client.Net = "tcp"
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m := new(dns.Msg)
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m.MsgHdr.Id = dns.Id()
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if *serial > 0 {
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m.SetIxfr(zone, uint32(*serial))
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} else {
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m.SetAxfr(zone)
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}
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if *tsig != "" {
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a := strings.SplitN(*tsig, ":", 2)
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name, secret := a[0], a[1]
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client.TsigSecret = map[string]string{name: secret}
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m.SetTsig(name, dns.HmacMD5, 300, m.MsgHdr.Id, time.Now().Unix())
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}
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if err := client.XfrReceive(m, *nameserver); err == nil {
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for r := range client.ReplyChan {
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if r.Error != nil {
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if r.Error == dns.ErrXfrLast {
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fmt.Printf("%v\n", r.Reply)
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}
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break
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}
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fmt.Printf("%v\n", r.Reply)
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}
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} else {
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fmt.Printf("Error %v\n", err)
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}
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}
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