}

  @Test
  fun inet4AddressToAscii() {
    assertThat(
      inet4AddressToAscii(
        byteArrayOf(0, 0, 0, 0),
      ),
    ).isEqualTo("0.0.0.0")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(1, 2, 3, 4),
      ),
    ).isEqualTo("1.2.3.4")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(127, 0, 0, 1),
      ),

  if (address[10] != 255.toByte()) return false
  if (address[11] != 255.toByte()) return false

  return true
}

/** Encodes an IPv4 address in canonical form according to RFC 4001. */
internal fun inet4AddressToAscii(address: ByteArray): String {
  require(address.size == 4)
  return Buffer()
    .writeDecimalLong((address[0] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[1] and 0xff).toLong())