if offset >= int64(len(block)) {
			// Decrement offset.
			offset -= int64(len(block))
			continue
		}

		// Skip until offset.
		block = block[offset:]

		// Reset the offset for next iteration to read everything
		// from subsequent blocks.
		offset = 0

		// We have written all the blocks, write the last remaining block.
		if write < int64(len(block)) {
			n, err := dst.Write(block[:write])

    }

    /**
     * Reads up to len bytes of data from this input stream into an array of bytes.
     *
     * @throws IOException
     *             if a network error occurs
     */

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

    /**

                 * one might be able to reduce this.
                 */

                if (len > 0 && src[srcIndex + len - 1] == '\0') {
                    len--;
                }
                str = new String(src, srcIndex, len, SmbConstants.OEM_ENCODING);
            }
        } catch (final UnsupportedEncodingException uee) {
            if (LogStream.level > 1) {

            final int id = Encdec.dec_uint16le(type2token, ri);
            final int len = Encdec.dec_uint16le(type2token, ri + 2);
            ri += 4;
            if (id == 0 || ri + len > type2token.length) {
                break;
            }
            if (id == id0) {
                try {
                    return new String(type2token, ri, len, SmbConstants.UNI_ENCODING);

	if len(creds) != 2 {
		return ch, ErrMissingFields
	}
	if creds[0] != "Credential" {
		return ch, ErrMissingCredTag
	}
	credElements := strings.Split(strings.TrimRight(strings.TrimSpace(creds[1]), SlashSeparator), SlashSeparator)
	if len(credElements) < 5 {
		return ch, ErrCredMalformed
	}

func (x *xlMetaV2) AppendTo(dst []byte) ([]byte, error) {
	// Header...
	sz := len(xlHeader) + len(xlVersionCurrent) + msgp.ArrayHeaderSize + len(dst) + 3*msgp.Uint32Size
	// Existing + Inline data
	sz += len(dst) + len(x.data)
	// Versions...
	for _, ver := range x.versions {
		sz += 32 + len(ver.meta)
	}
	if cap(dst) < sz {
		buf := make([]byte, len(dst), sz)
		copy(buf, dst)
		dst = buf
	}

        return 0;
    }

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

    @Override
    int readDataWireFormat(final byte[] buffer, int bufferIndex, final int len) {
        final int start = bufferIndex;

        return read(b, 0, b.length);
    }

    /* This method will not return until len bytes have been read
     * or the stream has been closed.
     */

    @Override
    public synchronized int read(final byte[] b, int off, int len) throws IOException {
        if (len == 0) {
            return 0;
        }
        int tot = 0;

        while (true) {
            while (bip > 0) {

			return nil, fmt.Errorf("etag: invalid length %d", len(etag))
		}
		return ETag(etag), nil
	}

	prefix, suffix := s[:n], s[n:]
	if len(prefix) != 32 {
		return nil, fmt.Errorf("etag: invalid prefix length %d", len(prefix))
	}
	if len(suffix) <= 1 {
		return nil, errors.New("etag: suffix is not a part number")
	}

	etag, err := hex.DecodeString(prefix)
	if err != nil {
		return nil, err
	}

     * @param bufferIndex the starting offset in the buffer
     * @param len the length of data to decode
     * @throws IOException if an I/O error occurs during decoding
     */
    public SecurityDescriptor(final byte[] buffer, final int bufferIndex, final int len) throws IOException {
        this.decode(buffer, bufferIndex, len);
    }

    /**
     * Decodes a security descriptor from a byte buffer.
     *