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();
        }

        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();
      }
    };
  }

            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;
        }

    public int read(final byte[] b, final int off, final int len) throws IOException {
        return readDirect(b, off, len);
    }

    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     * Optimized for better performance with larger read sizes and reduced round trips.
     *
     * @param b the buffer to read into
     * @param off the offset in the buffer to start writing

     *
     * @param b the byte array to read data into
     * @param off the offset in the array at which to start storing bytes
     * @param len the maximum number of bytes to read
     * @return the number of bytes read, or -1 if end of file is reached
     * @throws SmbException if an I/O error occurs
     */
    public int read(final byte b[], final int off, int len) throws SmbException {
        if (len <= 0) {
            return 0;

        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

    @Override
    public synchronized void write(final byte[] b, int off, final int len) throws IOException {
        if (len > 0xFFFF) {
            throw new IOException("write too large: " + len);
        }
        if (off < 4) {
            throw new IOException("NetBIOS socket output buffer requires 4 bytes available before off");
        }

        off -= 4;

        b[off + 0] = (byte) SessionServicePacket.SESSION_MESSAGE;

            result = len > used ? used : len;
            if (used > i && result > i) {
                System.arraycopy(pipe_buf, beg_idx, b, off, i);
                off += i;
                System.arraycopy(pipe_buf, 0, b, off, result - i);
            } else {
                System.arraycopy(pipe_buf, beg_idx, b, off, result);
            }
            used -= result;
            beg_idx = (beg_idx + result) % pipe_buf.length;
        }

    return putBytes(bytes, 0, bytes.length);
  }

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

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(ByteBuffer b) {
    if (b.hasArray()) {

     */

    @Override
    public int read(final byte[] b, final int off, final int len) throws IOException {
        return readDirect(b, off, len);
    }

    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     *
     * @param b the buffer into which the data is read
     * @param off the start offset in the array b at which the data is written