byteCount: Long,
    ): Long {
      check(fileOperator != null)

      val source: Int =
        synchronized(this@Relay) {
          // We need new data from upstream.
          while (true) {
            val upstreamPos = this@Relay.upstreamPos
            if (sourcePos != upstreamPos) break

            // No more data upstream. We're done.
            if (complete) return -1L

    val labelLength =
      when (dot) {
        -1 -> length - labelStart
        else -> dot - labelStart
      }
    if (labelLength !in 1..63) return true
    if (dot == -1) break
    if (dot == length - 1) break // Trailing '.' is allowed.
    labelStart = dot + 1
  }

  return false
}

internal fun String.containsInvalidHostnameAsciiCodes(): Boolean {
  for (i in 0 until length) {

        // If we couldn't encode the label, give up.
        return null
      }

      if (dot < limit) {
        result.writeByte('.'.code)
        pos = dot + 1
      } else {
        break
      }
    }

    return result.readUtf8()
  }

  private fun encodeLabel(
    string: String,
    pos: Int,
    limit: Int,
    result: Buffer,
  ): Boolean {

    assertThat(leaf.certificate.sigAlgName).isEqualTo("SHA256WITHECDSA", ignoreCase = true)
  }

  @Test
  fun decodeEcdsa256() {
    // The certificate + private key below was generated programmatically:
    //
    // HeldCertificate heldCertificate = new HeldCertificate.Builder()
    //     .validityInterval(5_000L, 10_000L)
    //     .addSubjectAlternativeName("1.1.1.1")

        // Like "0061" or "0031 2044 0034".
        while (true) {
          skipWhitespace()

          when (select(optionsDelimiter)) {
            DELIMITER_HASH -> {
              break
            }

            DELIMITER_DOT, DELIMITER_SEMICOLON, DELIMITER_NEWLINE -> {
              throw IOException("unexpected delimiter")
            }
          }

      val childIndex = (accumulator shl (8 - accumulatorBitCount)) and 0xff
      node = node.children!![childIndex]!!
      if (node.children != null || node.terminalBitCount > accumulatorBitCount) {
        break
      }
      sink.writeByte(node.symbol)
      accumulatorBitCount -= node.terminalBitCount
      node = root
    }
  }

  private fun addCode(
    symbol: Int,
    code: Int,

 * blast radius possible. If an HTTP/2 stream is active, canceling will cancel that stream but not
 * the other streams sharing its connection. But if the TLS handshake is still in progress then
 * canceling may break the entire connection.
 */
class RealCall(
  val client: OkHttpClient,
  /** The application's original request unadulterated by redirects or auth headers. */
  val originalRequest: Request,
  val forWebSocket: Boolean,

    }.also { expected ->
      when (expected) {
        is SSLException, is TlsFatalAlert -> {}
        else -> throw expected
      }
    }
  }

  // TODO(jwilson): tests below this marker need to be migrated to OkHttp's request/response API.
  @Test
  fun connectViaHttpsWithSSLFallback() {
    platform.assumeNotBouncyCastle()

    server.useHttps(handshakeCertificates.sslSocketFactory())

    ```kotlin
    val response: Response = call.execute()
    val multipartReader = MultipartReader(response.body!!)

    multipartReader.use {
      while (true) {
        val part = multipartReader.nextPart() ?: break
        process(part.headers, part.body)
      }
    }
    ```

 *  New: `MediaType.parameter()` gets a parameter like `boundary` from a media type like
    `multipart/mixed; boundary="abc"`.

          val byte1 = this[mid + publicSuffixByteIndex] and 0xff

          compareResult = byte0 - byte1
          if (compareResult != 0) break

          publicSuffixByteIndex++
          currentLabelByteIndex++
          if (publicSuffixByteIndex == publicSuffixLength) break

          if (labels[currentLabelIndex].size == currentLabelByteIndex) {