39 lines
1.0 KiB
Go
39 lines
1.0 KiB
Go
package main
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import (
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"fmt"
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"dns"
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"flag"
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)
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func main() {
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var serial *int = flag.Int("serial", 0, "Perform an IXFR with the given serial")
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var nameserver *string = flag.String("ns", "127.0.0.1", "Query this nameserver")
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flag.Parse()
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zone := flag.Arg(flag.NArg()-1)
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res := new(dns.Resolver)
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res.FromFile("/etc/resolv.conf")
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res.Servers[0] = *nameserver
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c := make(chan dns.Xfr)
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m := new(dns.Msg)
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m.Question = make([]dns.Question, 1)
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if *serial > 0 {
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m.Question[0] = dns.Question{zone, dns.TypeIXFR, dns.ClassINET}
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soa := new(dns.RR_SOA)
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soa.Hdr = dns.RR_Header{zone, dns.TypeSOA, dns.ClassINET, 14400, 0}
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soa.Serial = uint32(*serial)
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m.Ns = make([]dns.RR, 1)
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m.Ns[0] = soa
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} else {
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m.Question[0] = dns.Question{zone, dns.TypeAXFR, dns.ClassINET}
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}
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go res.Xfr(m, nil, c)
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for x := range c {
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fmt.Printf("%v %v\n",x.Add, x.RR)
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}
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}
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