func doXfr(c *dns.Client, m *dns.Msg, nameserver string) {
if t, e := c.XfrReceive(m, nameserver); e == nil {
for r := range t {
if r.Error == nil {
for _, rr := range r.RR {
if *short {
rr = shortRR(rr)
}
fmt.Printf("%v\n", rr)
}
} else {
fmt.Fprintf(os.Stderr, "Failure to read XFR: %s\n", r.Error.Error())
}
}
} else {
fmt.Fprintf(os.Stderr, "Failure to read XFR: %s\n", e.Error())
}
}