internal const val TYPE_VALID = 6

private fun BufferedSource.skipWhitespace() {
  while (!exhausted()) {
    if (buffer[0] != ' '.code.toByte()) return
    skip(1L)
  }
}

private fun BufferedSource.skipRestOfLine() {
  when (val newline = indexOf('\n'.code.toByte())) {
    -1L -> skip(buffer.size) // Exhaust this source.
    else -> skip(newline + 1)
  }
}

/**

private fun isMappedIpv4Address(address: ByteArray): Boolean {
  if (address.size != 16) return false

  for (i in 0 until 10) {
    if (address[i] != 0.toByte()) return false
  }

  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. */

private fun Buffer.skipCommasAndWhitespace(): Boolean {
  var commaFound = false
  loop@ while (!exhausted()) {
    when (this[0]) {
      ','.code.toByte() -> {
        // Consume ','.
        readByte()
        commaFound = true
      }

      ' '.code.toByte(), '\t'.code.toByte() -> {
        readByte()
        // Consume space or tab.
      }

      else -> break@loop
    }
  }
  return commaFound

        byteArrayOf(192.toByte(), 168.toByte(), 0, 1),
      ),
    ).isEqualTo("192.168.0.1")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(252.toByte(), 253.toByte(), 254.toByte(), 255.toByte()),
      ),
    ).isEqualTo("252.253.254.255")

    assertThat(
      inet4AddressToAscii(
        byteArrayOf(255.toByte(), 255.toByte(), 255.toByte(), 255.toByte()),
      ),

     */
    @JvmField
    val FORM = "multipart/form-data".toMediaType()

    private val COLONSPACE = byteArrayOf(':'.code.toByte(), ' '.code.toByte())
    private val CRLF = byteArrayOf('\r'.code.toByte(), '\n'.code.toByte())
    private val DASHDASH = byteArrayOf('-'.code.toByte(), '-'.code.toByte())

    /**
     * Appends a quoted-string to a StringBuilder.
     *

        // array.
        while (mid > -1 && this[mid] != '\n'.code.toByte()) {
          mid--
        }
        mid++

        // Now look for the ending '\n'.
        var end = 1
        while (this[mid + end] != '\n'.code.toByte()) {
          end++
        }
        val publicSuffixLength = mid + end - mid

}

private fun BufferedSource.skipWhitespace() {
  while (!exhausted()) {
    if (buffer[0] != ' '.code.toByte()) return
    skip(1L)
  }
}

private fun BufferedSource.skipRestOfLine() {
  when (val newline = indexOf('\n'.code.toByte())) {
    -1L -> skip(buffer.size) // Exhaust this source.
    else -> skip(newline + 1)
  }
}

class MappingListCodePointMapping(

    val source = response.body.source()
    source.timeout().timeout(1000, TimeUnit.MILLISECONDS)
    assertThat(source.readByte()).isEqualTo('A'.code.toByte())
    assertThat(source.readByte()).isEqualTo('B'.code.toByte())
    assertThat(source.readByte()).isEqualTo('C'.code.toByte())
    assertFailsWith<SocketTimeoutException> {
      source.readByte() // If Content-Length was accurate, this would return -1 immediately.
    }

      throw ProtocolException("constructed strings not supported for DER")
    }
    return source.readUtf8(bytesLeft)
  }

  fun readObjectIdentifier(): String {
    val result = Buffer()
    val dot = '.'.code.toByte().toInt()
    when (val xy = readVariableLengthLong()) {
      in 0L until 40L -> {
        result.writeDecimalLong(0)
        result.writeByte(dot)
        result.writeDecimalLong(xy)
      }

          // and convert back to byte.
          val bufferInt: Int = buffer[i].toInt()
          val keyInt: Int = key[keyIndex].toInt()
          buffer[i] = (bufferInt xor keyInt).toByte()

          i++
          keyIndex++
        }
      }
    } while (cursor.next() != -1)
  }

  fun closeCodeExceptionMessage(code: Int): String? {
    return if (code < 1000 || code >= 5000) {