val codepointDelta: Int,
  ) : MappedRange {
    private val absoluteDelta = abs(codepointDelta)

    val b1: Int
      get() =
        when {
          codepointDelta < 0 -> 0x40 or (absoluteDelta shr 14)
          codepointDelta > 0 -> 0x50 or (absoluteDelta shr 14)
          else -> error("Unexpected codepointDelta of 0")
        }

    val b2: Int
      get() = absoluteDelta shr 7 and 0x7f

    val b3: Int

0x71, 0xd8, 0x31, 0x15, 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd,...

        // Put data at offset 0x20
        SMBUtil.writeInt2(0, ctx, ci); // Reserved
        SMBUtil.writeInt2(0x20, ctx, ci + 2); // DataOffset
        ci += 4;
        SMBUtil.writeInt4(8, ctx, ci); // DataLength
        ci += 4;
        // Name bytes at 0x10
        byte[] name = new byte[] { 'T', 'E', 'S', 'T' };
        System.arraycopy(name, 0, ctx, 0x10, name.length);
        // Data bytes at 0x20

    /**
     * Server supports SMB3 encryption
     */
    public static final int SMB2_GLOBAL_CAP_ENCRYPTION = 0x40;

    /**
     * File information class
     */
    public static final byte SMB2_0_INFO_FILE = 1;

    /**
     * Filesystem information class
     */
    public static final byte SMB2_0_INFO_FILESYSTEM = 2;

    /**

     */
    int FLAGS_PATH_NAMES_CANONICALIZED = 0x10;
    /**
     * Opportunistic lock requested or granted flag.
     */
    int FLAGS_OPLOCK_REQUESTED_OR_GRANTED = 0x20;
    /**
     * Notify client of any action which modified the file flag.
     */
    int FLAGS_NOTIFY_OF_MODIFY_ACTION = 0x40;
    /**
     * Message is a response from server flag.
     */
    int FLAGS_RESPONSE = 0x80;

    /**

    static final int FLAGS_REQUEST_BATCH_OPLOCK = 0x04;

    // Access Mode Encoding for desiredAccess
    static final int SHARING_COMPATIBILITY = 0x00;
    static final int SHARING_DENY_READ_WRITE_EXECUTE = 0x10;
    static final int SHARING_DENY_WRITE = 0x20;
    static final int SHARING_DENY_READ_EXECUTE = 0x30;
    static final int SHARING_DENY_NONE = 0x40;

    static final int DO_NOT_CACHE = 0x1000; // bit 12

  const val FLAG_END_STREAM = 0x1 // Used for headers and data.
  const val FLAG_END_HEADERS = 0x4 // Used for headers and continuation.
  const val FLAG_END_PUSH_PROMISE = 0x4
  const val FLAG_PADDED = 0x8 // Used for headers and data.
  const val FLAG_PRIORITY = 0x20 // Used for headers.
  const val FLAG_COMPRESSED = 0x20 // Used for data.

  /** Lookup table for valid frame types. */
  private val FRAME_NAMES =
    arrayOf(
      "DATA",

0x10, 0xdb, 0xaf, 0x9a, 0xe8, 0xda, 0xe0, 0x40, 0xa6, 0x80, 0xf2, 0x1c, 0x39, 0xe8, 0x7, 0x38, 0x2c, 0xa4, 0x44, 0x44, 0x69, 0x72, 0xc4, 0x10, 0x4f, 0xe7, 0xd7, 0xf3, 0x15, 0x2d, 0x4c, 0xcd, 0x96, 0x65, 0x24, 0x86, 0xdc, 0x2, 0x1b, 0xed, 0xa6, 0x45, 0x63, 0x41, 0x6c, 0x67, 0x6f, 0x1, 0xa3, 0x45, 0x63, 0x4d, 0x4, 0xa3, 0x45, 0x63, 0x4e, 0x4, 0xa7, 0x45, 0x63, 0x42, 0x53, 0x69, 0x7a, 0x65, 0xd2, 0x0, 0x10, 0x0, 0x0, 0xa7, 0x45, 0x63, 0x49, 0x6e, 0x64, 0x65, 0x78, 0x7, 0xa6, 0x45, 0x63, 0x44, 0x69,...

     */
    public static final int SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY = 0x10;

    /**
     * Share capability indicating scale-out support.
     */
    public static final int SMB2_SHARE_CAP_SCALEOUT = 0x20;

    /**
     * Share capability indicating cluster support.
     */
    public static final int SMB2_SHARE_CAP_CLUSTER = 0x40;

    /**
     * Share capability indicating asymmetric support.
     */

    /**
     * Notify when creation time changes
     */
    public static final int FILE_NOTIFY_CHANGE_CREATION = 0x40;
    /**
     * Notify when extended attributes change
     */
    public static final int FILE_NOTIFY_CHANGE_EA = 0x80;
    /**
     * Notify when security descriptor changes
     */
    public static final int FILE_NOTIFY_CHANGE_SECURITY = 0x100;
    /**