diff options
| -rw-r--r-- | main.go | 10 |
1 files changed, 8 insertions, 2 deletions
@@ -23,14 +23,14 @@ func main() { ip := ipnet.IP for ipnet.Contains(ip) { if names, err := net.LookupAddr(ip.String()); err != nil { - fmt.Fprintf(os.Stderr, "%s\t# PTR error: %s\n", ip, err) + printErr(ip, "PTR", err) } else { fmt.Printf("%s\t%s\n", ip, strings.Join(names, " ")) } if *txt { recs, err := net.LookupTXT(arpa(ip)) if err != nil { - fmt.Fprintf(os.Stderr, "%s\t# TXT error: %s\n", ip, err) + printErr(ip, "TXT", err) } else { for _, rec := range recs { fmt.Printf("%s\tTXT %q\n", ip, rec) @@ -44,6 +44,12 @@ func main() { } } +func printErr(ip net.IP, rrtype string, err error) { + if !strings.Contains(err.Error(), "no such host") { + fmt.Fprintf(os.Stderr, "%s\t# %s error: %s\n", ip, rrtype, err) + } +} + // arpa returns the .in-addr.arpa or .ip6.arpa name corresponding with the given IP. func arpa(ip net.IP) string { if ip4 := ip.To4(); ip4 != nil { |