example client for async queries in Go DNS

gistfile1.go

package main

import (
        "dns"
        "fmt"
)

func HelloQuery(w dns.RequestWriter, req *dns.Msg, ) { 

//        client.Attemps = 3
//        client.Retry = true             // retry with TCP
//        client.RemoteAddr = ":212i91"
//        w.Client.Exchange(dksl)       // Send to remote

        w.Write(req)
}


//ListenAndQuery
func main() {
        dns.HandleQueryFunc("miek.nl.", HelloQuery)
        dns.ListenAndQuery(nil, nil)

        m := new(dns.Msg)
        m.SetQuestion("miek.nl.", dns.TypeMX)
        m.MsgHdr.RecursionDesired = true

        client := new(dns.Client)
        client.Do(m, "127.0.0.1:53")
//        rep := client.Exchange(msg, adress)

        i:=0
forever:
        for {
                select {
                case n := <-dns.DefaultReplyChan:
                        fmt.Printf("%v\n", n)
                        i++ 
                        if i == 1 { 
                                break forever
                        }   
                }   
        }   

}