# This should only be necessary when running on A GCP VM, on a default
# network, which has the MTU of 1460,
# due to 40 bytes being reserved for GCP's internal usage.
# Note, an invalid sub-interface name will lead to an obscure error, e.g.:
# "The filename, directory name, or volume label syntax is incorrect."

 * limitations under the License.
 */
package okhttp3.tls.internal.der

import okio.Buffer
import okio.ByteString

/**
 * Encode and decode a model object like a [Long] or [Certificate] as DER bytes.
 */
internal interface DerAdapter<T> {
  /** Returns true if this adapter can read [header] in a choice. */
  fun matches(header: DerHeader): Boolean

  /**
   * Returns a value from this adapter.
   *

  // request contains an x509 certificate signing request encoded in a "CERTIFICATE REQUEST" PEM block.
  // When serialized as JSON or YAML, the data is additionally base64-encoded.
  // +listType=atomic
  optional bytes request = 1;

  // signerName indicates the requested signer, and is a qualified name.
  //
  // List/watch requests for CertificateSigningRequests can filter on this field using a "spec.signerName=NAME" fieldSelector.

     */
    boolean verify(byte[] data, int offset, ServerMessageBlock response) {
        update(macSigningKey, 0, macSigningKey.length);
        int index = offset;
        update(data, index, ServerMessageBlock.SIGNATURE_OFFSET); 
        index += ServerMessageBlock.SIGNATURE_OFFSET;
        byte[] sequence = new byte[8]; 
        ServerMessageBlock.writeInt4(response.signSeq, sequence, 0); 

     *
     * BC no longer seems to allow that out of the box
     *
     * @param expectTag
     * @param in
     * @return coded bytes of the tagged object
     * @throws IOException
     */
    public static byte[] readUnparsedTagged(int expectTag, int limit, ASN1InputStream in) throws IOException {
        int ftag = in.read();
        int tag = readTagNumber(in, ftag);

	return s.readAllData(ctx, volume, volumeDir, filePath)
}

// ReadFile reads exactly len(buf) bytes into buf. It returns the
// number of bytes copied. The error is EOF only if no bytes were
// read. On return, n == len(buf) if and only if err == nil. n == 0
// for io.EOF.
//
// If an EOF happens after reading some but not all the bytes,
// ReadFile returns ErrUnexpectedEOF.
//

			expectedValidationErr: nil,
		},
	}
	for i, tc := range testCases {
		t.Run(fmt.Sprintf("Test %d", i+1), func(t *testing.T) {
			cfg, err := ParseConfig(bytes.NewReader([]byte(tc.inputConfig)))
			if err != nil && tc.expectedParsingErr != nil && err.Error() != tc.expectedParsingErr.Error() {
				t.Fatalf("%d: Expected '%v' during parsing but got '%v'", i+1, tc.expectedParsingErr, err)
			}

    assertThrows(
        IllegalArgumentException.class, () -> Ints.fromByteArray(new byte[Ints.BYTES - 1]));
  }

  public void testFromBytes() {
    assertThat(Ints.fromBytes((byte) 0x12, (byte) 0x13, (byte) 0x14, (byte) 0x15))
        .isEqualTo(0x12131415);
    assertThat(Ints.fromBytes((byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC))
        .isEqualTo(0xFFEEDDCC);
  }

  public void testByteArrayRoundTrips() {

    assertByteArrayEquals(
        new byte[] {
          (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC,
          (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88
        },
        Longs.toByteArray(0xFFEEDDCCBBAA9988L));
  }

  public void testFromByteArray() {
    assertThat(
            Longs.fromByteArray(new byte[] {0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x33}))

        .addHeader("Content-Range: bytes 1000-1001/2000")
        .build(),
    )
    server.enqueue(
      MockResponse.Builder()
        .body("BB")
        .build(),
    )
    val url = server.url("/")
    val request =
      Request.Builder()
        .url(url)
        .header("Range", "bytes=1000-1001")
        .build()