buf.enc_ndr_small(0); // flags
        buf.enc_ndr_long(0x00000010); // data representation
        buf.enc_ndr_short(20); // length
        buf.enc_ndr_short(0); // auth length
        buf.enc_ndr_long(0); // call_id

        // Response body
        buf.enc_ndr_long(4); // alloc_hint
        buf.enc_ndr_short(0); // context_id
        buf.enc_ndr_short(0); // cancel_count
        buf.enc_ndr_small(0xAB); // test data for decode_out

	BucketOptions
	HeaderSize int
}

// Read implements a throttled read
func (r *MonitoredReader) Read(buf []byte) (n int, err error) {
	if r.throttle == nil {
		return r.r.Read(buf)
	}
	if r.lastErr != nil {
		err = r.lastErr
		return n, err
	}
	b := r.throttle.Burst()  // maximum available tokens
	need := len(buf)         // number of bytes requested by caller
	hdr := r.opts.HeaderSize // remaining header bytes

        Smb2LogoffRequest req = newRequest();
        byte[] buf = new byte[offset + 8]; // extra space for safety

        // Act
        int written = req.writeBytesWireFormat(buf, offset);

        // Assert: should write exactly 4 bytes
        assertEquals(4, written, "Should report 4 bytes written");
        // StructureSize (2 bytes, LE) == 4
        assertEquals(4, SMBUtil.readInt2(buf, offset));
        // Reserved (2 bytes, LE) == 0

        assertArgumentNotNull("element", element);
        assertArgumentNotNull("buf", buf);

        final String tag = element.getTagName();
        buf.append('<');
        buf.append(tag);
        appendAttrs(element.getAttributes(), buf);
        buf.append('>');
        appendChildren(element.getChildNodes(), buf);
        buf.append("</");
        buf.append(tag);

	var fi FileInfo
	var err error
	var inData xlMetaInlineData
	if buf, data, e := isIndexedMetaV2(xlMetaBuf); e != nil {
		return FileInfo{}, e
	} else if buf != nil {
		inData = data
		fi, err = buf.ToFileInfo(volume, path, versionID, true)
		if len(buf) != 0 && errors.Is(err, errFileNotFound) {
			// This special case is needed to handle len(xlMeta.versions) == 0
			return FileInfo{

	headerVer, metaVer uint
}

func decodeXLHeaders(buf []byte) (x xlHeaders, b []byte, err error) {
	x.headerVer, buf, err = msgp.ReadUintBytes(buf)
	if err != nil {
		return x, buf, err
	}
	x.metaVer, buf, err = msgp.ReadUintBytes(buf)
	if err != nil {
		return x, buf, err
	}
	if x.headerVer > xlHeaderVersion {
		return x, buf, fmt.Errorf("decodeXLHeaders: Unknown xl header version %d", x.headerVer)
	}

                buf.start = off;
                buf.reset();
                msg.encode_header(buf);
                buf.enc_ndr_long(msg.alloc_hint);
                buf.enc_ndr_short(0); /* context id */
                buf.enc_ndr_short(msg.getOpnum());
            }

            if ((msg.flags & DCERPC_LAST_FRAG) == DCERPC_LAST_FRAG) {

		// Add input readahead.
		// We use 2 buffers, so we always have a full buffer of input.
		pool := globalBytePoolCap.Load()
		bufA := pool.Get()
		bufB := pool.Get()
		defer pool.Put(bufA)
		defer pool.Put(bufB)
		ra, err := readahead.NewReaderBuffer(data, [][]byte{bufA[:fi.Erasure.BlockSize], bufB[:fi.Erasure.BlockSize]})
		if err == nil {
			toEncode = ra
			defer ra.Close()
		}
	}

		}

		return nil, ObjectInfo{}, err
	}
	defer r.Close()

	buf, err := io.ReadAll(r)
	if err != nil {
		return nil, ObjectInfo{}, err
	}
	if len(buf) == 0 {
		return nil, ObjectInfo{}, errConfigNotFound
	}
	return buf, r.ObjInfo, nil
}

func readConfig(ctx context.Context, store objectIO, configFile string) ([]byte, error) {
	buf, _, err := readConfigWithMetadata(ctx, store, configFile, ObjectOptions{})

	// Calculate the size of the bitrot file and compare
	// it with the actual file size.
	if left != bitrotShardFileSize(partSize, shardSize, algo) {
		return errFileCorrupt
	}

	bufp := xioutil.ODirectPoolSmall.Get()
	defer xioutil.ODirectPoolSmall.Put(bufp)

	for left > 0 {
		// Read expected hash...
		h.Reset()
		n, err := io.ReadFull(r, hashBuf)
		if err != nil {