public int decode ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        // Read total allocation units.
        this.alloc = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        // read caller available allocation units
        this.free = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        // skip actual free units

            }

            out.write( sbuf, 0, 4 + n );
            out.flush();
            /* Note the Transport thread isn't running yet so we can
             * read from the socket here.
             */
            if (peekKey() == null) /* try to read header */
                throw new IOException( "transport closed in negotiate" );
            int size = Encdec.dec_uint16be( sbuf, 2 ) & 0xFFFF;

    SmbComReadAndX() {
        super( null );
        command = SMB_COM_READ_ANDX;
        openTimeout = 0xFFFFFFFF;
    }
    SmbComReadAndX( int fid, long offset, int maxCount, ServerMessageBlock andx ) {
        super( andx );
        this.fid = fid;
        this.offset = offset;
        this.maxCount = minCount = maxCount;
        command = SMB_COM_READ_ANDX;
        openTimeout = 0xFFFFFFFF;
    }

                    while ( is.read() >= 0 ) {
                        readCnt++;
                    }
                }
                if ( log.isDebugEnabled() ) {
                    log.debug("Failures " + failCount.get() + " wrote " + writeCount.get() + " read " + readCnt);
                }
                assertEquals("Read less than we wrote", writeCount.get(), readCnt);

        if (isStart && !isDirect) { // start of new frag, do trans
            off = in.read(buf, 0, 1024);
        } else {
            off = in.readDirect(buf, 0, buf.length);
        }

        if (buf[0] != 5 && buf[1] != 0)
            throw new IOException("Unexpected DCERPC PDU header");

        flags = buf[3] & 0xFF;
        // next read is start of new frag
        isStart = (flags & DCERPC_LAST_FRAG) == DCERPC_LAST_FRAG;

            Smb2QueryInfoResponse resp = withOpen(
                th,
                Smb2CreateRequest.FILE_OPEN,
                SmbConstants.FILE_READ_ATTRIBUTES | SmbConstants.READ_CONTROL,
                SmbConstants.FILE_SHARE_READ | SmbConstants.FILE_SHARE_WRITE,
                req);
            return resp.getInfo(SecurityDescriptor.class);
        }

                            bufDataStart + dataDisplacement, dataCount );
            bufferIndex += dataCount;
        }

        /* Check to see if the entire transaction has been
         * read. If so call the read methods.
         */

        if( !parametersDone &&
                ( parameterDisplacement + parameterCount ) == totalParameterCount) {
            parametersDone = true;
        }

import jcifs.SmbPipeHandle;
import jcifs.SmbPipeResource;
import jcifs.internal.smb1.com.SmbComNTCreateAndX;
import jcifs.internal.smb1.com.SmbComNTCreateAndXResponse;


/**
 * This class will allow a Java program to read and write data to Named
 * Pipes and Transact NamedPipes.
 *
 * <p>
 * There are three Win32 function calls provided by the Windows SDK
 * that are important in the context of using jCIFS. They are:
 *
 * <ul>

            break;
        case SMB2_CLOSE:
            c = "SMB2_CLOSE";
            break;
        case SMB2_FLUSH:
            c = "SMB2_FLUSH";
            break;
        case SMB2_READ:
            c = "SMB2_READ";
            break;
        case SMB2_WRITE:
            c = "SMB2_WRITE";
            break;
        case SMB2_LOCK:
            c = "SMB2_LOCK";
            break;

        int dataStart = getHeaderStart() + dataOffset;

        if ( this.dataLength + this.outputBufferOffset > this.outputBuffer.length ) {
            throw new SMBProtocolDecodingException("Buffer to small for read response");
        }
        System.arraycopy(buffer, dataStart, this.outputBuffer, this.outputBufferOffset, this.dataLength);
        bufferIndex = Math.max(bufferIndex, dataStart + this.dataLength);