return 0;
    }

    @Override
    protected int readParametersWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        this.length = SMBUtil.readInt4(buffer, bufferIndex);
        return 4;
    }

    @Override
    protected int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) {

    public static final int SMB2_DIALECT_0202 = 0x0202;

    /**
     * SMB 2.1 dialect (Windows 7/Server 2008R2)
     */
    public static final int SMB2_DIALECT_0210 = 0x0210;

    /**
     * SMB 3.0 dialect (Windows 8/Server 2012)
     */
    public static final int SMB2_DIALECT_0300 = 0x0300;

    /**
     * SMB 3.0.2 dialect (Windows 8.1/Server 2012R2)
     */
    public static final int SMB2_DIALECT_0302 = 0x0302;

    // see https://msdn.microsoft.com/en-us/library/dd414577.aspx

    private int namedPipeState;
    private int readDataAvailable;
    private int numberOfMessages;
    private int messageLength;
    private byte[] data;

    /**
     * Gets the current state of the named pipe
     * @return the namedPipeState
     */
    public int getNamedPipeState() {
        return this.namedPipeState;
    }

    /**

        return 4;
    }

    @Override
    protected int readSetupWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        return 0;
    }

    @Override
    protected int writeParametersWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    protected int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        if (dst.length - dstIndex < this.pipeDataLen) {

    /** Implementation error in the name service */
    public static final int IMP_ERR = 0x4;
    /** Refused error in the name service */
    public static final int RFS_ERR = 0x5;
    /** Active error in the name service */
    public static final int ACT_ERR = 0x6;
    /** Name in conflict error */
    public static final int CFT_ERR = 0x7;

    // session service error codes
    /** Connection refused by the remote host */

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb1.ServerMessageBlock#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
        final int start = bufferIndex;
        for (int i = 0; i < this.unlocks.length; i++) {
            this.unlocks[i] = createLockRange();

        void testEncodeWithOffset() {
            String path = "\\\\test";
            int maxReferralLevel = 5;
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            int offset = 10;
            byte[] dst = new byte[offset + buffer.size()];
            int bytesEncoded = buffer.encode(dst, offset);

            assertEquals(buffer.size(), bytesEncoded);

    static byte[] readSecurityBuffer(final byte[] src, final int index) {
        final int length = readUShort(src, index);
        final int offset = readULong(src, index + 4);
        final byte[] buffer = new byte[length];
        System.arraycopy(src, offset, buffer, 0, length);
        return buffer;
    }

    static void writeULong(final byte[] dest, final int offset, final int ulong) {
        dest[offset] = (byte) (ulong & 0xff);

  }

  // Modification Operations
  @CanIgnoreReturnValue
  @Override
  public int add(E element, int occurrences) {
    checkIsE(element);
    checkNonnegative(occurrences, "occurrences");
    if (occurrences == 0) {
      return count(element);
    }
    int index = element.ordinal();
    int oldCount = counts[index];
    long newCount = (long) oldCount + occurrences;

        byte[] buffer = new byte[30]; // Extra space to test offset
        int bufferIndex = 5; // Start at offset 5
        long expectedAllocationSize = 2048L;
        long expectedEndOfFile = 1536L;
        int expectedNumberOfLinks = 5;
        boolean expectedDeletePending = true;
        boolean expectedDirectory = true;

        // Encode test data at offset
        int offset = bufferIndex;