Function parseIPPort

ipvs.go:209–241

(s string)

}

func parseIPPort(s string) (net.IP, uint16, error) {
	var (
		ip  net.IP
		err error
	)

	switch len(s) {
	case 13:
		ip, err = hex.DecodeString(s[0:8])
		if err != nil {
			return nil, 0, err
		}
	case 46:
		ip = net.ParseIP(s[1:40])
		if ip == nil {
			return nil, 0, fmt.Errorf("%w: Invalid IPv6 addr %s: %w", ErrFileParse, s[1:40], err)
		}
	default:
		return nil, 0, fmt.Errorf("%w: Unexpected IP:Port %s: %w", ErrFileParse, s, err)
	}

	portString := s[len(s)-4:]
	if len(portString) != 4 {
		return nil, 0,
			fmt.Errorf("%w: Unexpected port string format %s: %w", ErrFileParse, portString, err)
	}
	port, err := strconv.ParseUint(portString, 16, 16)
	if err != nil {
		return nil, 0, err
	}

	return ip, uint16(port), nil
}