@Override
  public void write(int b) throws IOException {
    hasher.putByte((byte) b);
    out.write(b);
  }

  @Override
  public void write(byte[] bytes, int off, int len) throws IOException {
    hasher.putBytes(bytes, off, len);
    out.write(bytes, off, len);
  }

  /**
   * Returns the {@link HashCode} based on the data written to this stream. The result is

        length = Encdec.dec_uint16le(buf, 8);
        if (length > max_recv) {
            throw new IOException("Unexpected fragment length: " + length);
        }

        while (off < length) {
            off += in.readDirect(buf, off, length - off);
        }
    }

    @Override
    public void close() throws IOException {
        state = 0;
        if (out != null) {
            out.close();
        }

            if (off + stub_frag_len > in.length) {
                // shouldn't happen if alloc_hint is correct or greater
                final byte[] tmp = new byte[off + stub_frag_len];
                System.arraycopy(in, 0, tmp, 0, off);
                in = tmp;
            }
            System.arraycopy(fragBytes, 24, in, off, stub_frag_len);
            off += stub_frag_len;
        }

   * the bytes read.
   */
  @Override
  @CanIgnoreReturnValue
  public int read(byte[] bytes, int off, int len) throws IOException {
    int numOfBytesRead = in.read(bytes, off, len);
    if (numOfBytesRead != -1) {
      hasher.putBytes(bytes, off, numOfBytesRead);
    }
    return numOfBytesRead;
  }

  /**
   * mark() is not supported for HashingInputStream
   *

    @CanIgnoreReturnValue
    @Override
    public Hasher putBytes(byte[] bytes, int off, int len) {
      checkPositionIndexes(off, off + len, bytes.length);
      int i;
      for (i = 0; i + 4 <= len; i += 4) {
        update(4, getIntLittleEndian(bytes, off + i));
      }
      for (; i < len; i++) {
        putByte(bytes[off + i]);
      }
      return this;
    }

    @CanIgnoreReturnValue

    checkNotNull(str);
    checkNotClosed();
    target.append(str);
  }

  @Override
  public void write(String str, int off, int len) throws IOException {
    checkNotNull(str);
    checkNotClosed();
    // tricky: append takes start, end pair...
    target.append(str, off, off + len);
  }

  @Override
  public void flush() throws IOException {
    checkNotClosed();
    if (target instanceof Flushable) {

        this.b = b;
        this.off = off;
        this.dataLength = len;
    }

    /**
     * Sets the parameters for this write AndX request.
     *
     * @param fid the file identifier
     * @param offset the file offset at which to write
     * @param remaining the number of bytes remaining to be written
     * @param b the data buffer containing bytes to write
     * @param off the offset in the buffer where data starts

     * @param b the data buffer
     * @param off the offset in the buffer
     */
    public SmbComReadAndXResponse(final Configuration config, final byte[] b, final int off) {
        super(config);
        this.data = b;
        this.offset = off;
    }

    void setParam(final byte[] b, final int off) {
        this.data = b;
        this.offset = off;
    }

    /**
     * Gets the read data buffer.

        super.write(c);
        flush();
      }

      @Override
      public void write(char[] cbuf, int off, int len) throws IOException {
        super.write(cbuf, off, len);
        flush();
      }

      @Override
      public void write(String str, int off, int len) throws IOException {
        super.write(str, off, len);
        flush();
      }
    };
  }

        @Override
        public byte[] initSecContext(byte[] token, int off, int len) throws CIFSException {
            if (token == null) {
                if (len == 0) {
                    return new byte[0];
                }
                throw new CIFSException("token is null but len > 0");
            }
            if (off < 0 || len < 0 || off > token.length || off + len > token.length) {