func handleDnsRequest(w dns.ResponseWriter, r *dns.Msg) {
m := new(dns.Msg)
m.SetReply(r)
m.Compress = false
switch r.Opcode {
case dns.OpcodeQuery:
parseQuery(m)
case dns.OpcodeUpdate:
for _, question := range r.Question {
for _, rr := range r.Ns {
updateRecord(rr, &question)
}
}
}
if r.IsTsig() != nil {
if w.TsigStatus() == nil {
m.SetTsig(r.Extra[len(r.Extra)-1].(*dns.TSIG).Hdr.Name,
dns.HmacMD5, 300, time.Now().Unix())
} else {
log.Println("Status", w.TsigStatus().Error())
}
}
w.WriteMsg(m)
}
