func Getaddr(lookuper sutils.Lookuper, hostname string) (ip net.IP) { ip = net.ParseIP(hostname) if ip != nil { return } addrs, err := lookuper.LookupIP(hostname) n := len(addrs) if err != nil || n == 0 { return nil } return addrs[rand.Intn(n)] }
func Getaddrs(lookuper sutils.Lookuper, hostname string) (ips []net.IP) { ip := net.ParseIP(hostname) if ip != nil { ips = append(ips, ip) return } ips, err := lookuper.LookupIP(hostname) if err != nil { log.Error("%s", err.Error()) } return }
func Getaddr(lookuper sutils.Lookuper, hostname string) (ip net.IP) { ip = net.ParseIP(hostname) if ip != nil { return } addrs, err := lookuper.LookupIP(hostname) n := len(addrs) if err != nil { return nil } switch n { case 0: return nil case 1: return addrs[0] default: return addrs[rand.Intn(n)] } }