if ( th.hasCapability(SmbConstants.CAP_LARGE_READX) ) {
            this.largeReadX = true;
            this.readSizeFile = Math.min(th.getConfig().getReceiveBufferSize() - 70, th.areSignaturesActive() ? 0xFFFF - 70 : 0xFFFFFF - 70);
            log.debug("Enabling LARGE_READX with " + this.readSizeFile);
        }
        else {
            log.debug("LARGE_READX disabled");
            this.readSizeFile = this.readSize;

            }

            // there seems to be a bug with some servers that causes corruption if using signatures + CAP_LARGE_WRITE
            if ( th.hasCapability(SmbConstants.CAP_LARGE_WRITEX) && !th.areSignaturesActive() ) {
                this.writeSize = Math.min(th.getConfig().getSendBufferSize() - 70, 0xFFFF - 70);
            }

            SMBUtil.writeInt4(this.byteOffset >> 32, dst, dstIndex + 4);
            SMBUtil.writeInt4(this.byteOffset & 0xFFFFFFFF, dst, dstIndex + 8);
            SMBUtil.writeInt4(this.lengthInBytes >> 32, dst, dstIndex + 12);
            SMBUtil.writeInt4(this.lengthInBytes & 0xFFFFFFFF, dst, dstIndex + 16);
            return 20;
        }
        SMBUtil.writeInt2(this.pid, dst, dstIndex);

                int _name_bufferi = _src.index;
                _src.advance(2 * _name_bufferl);

                if (name.buffer == null) {
                    if (_name_buffers < 0 || _name_buffers > 0xFFFF) throw new NdrException( NdrException.INVALID_CONFORMANCE );
                    name.buffer = new short[_name_buffers];
                }
                _src = _src.derive(_name_bufferi);

                int _name_bufferi = _src.index;
                _src.advance(2 * _name_bufferl);

                if ( this.name.buffer == null ) {
                    if ( _name_buffers < 0 || _name_buffers > 0xFFFF )
                        throw new NdrException(NdrException.INVALID_CONFORMANCE);
                    this.name.buffer = new short[_name_buffers];
                }
                _src = _src.derive(_name_bufferi);

    TransPeekNamedPipe( String pipeName, int fid ) {
        name = pipeName;
        this.fid = fid;
        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_PEEK_NAMED_PIPE;
        timeout = 0xFFFFFFFF;
        maxParameterCount = 6;
        maxDataCount = 1;
        maxSetupCount = (byte)0x00;
        setupCount = 2;
    }

    int writeSetupWireFormat( byte[] dst, int dstIndex ) {

     * @param pipeName
     */
    public TransWaitNamedPipe ( Configuration config, String pipeName ) {
        super(config, SMB_COM_TRANSACTION, TRANS_WAIT_NAMED_PIPE);
        this.name = pipeName;
        this.timeout = 0xFFFFFFFF;
        this.maxParameterCount = 0;
        this.maxDataCount = 0;
        this.maxSetupCount = (byte) 0x00;
        this.setupCount = 2;
    }


    @Override

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;


@SuppressWarnings ( "javadoc" )
public class PacSignature {

    public static final int KERB_CHECKSUM_HMAC_MD5 = 0xFFFFFF76;
    public static final int HMAC_SHA1_96_AES128 = 0x0000000F;
    public static final int HMAC_SHA1_96_AES256 = 0x00000010;

    public static final int ETYPE_ARCFOUR_HMAC = 23;

    private SmbNamedPipe pipe;
    private byte[] tmp = new byte[1];
    private boolean dcePipe;

    TransactNamedPipeOutputStream( SmbNamedPipe pipe ) throws IOException {
        super(pipe, false, (pipe.pipeType & 0xFFFF00FF) | SmbFile.O_EXCL);
        this.pipe = pipe;
        this.dcePipe = ( pipe.pipeType & SmbNamedPipe.PIPE_TYPE_DCE_TRANSACT ) == SmbNamedPipe.PIPE_TYPE_DCE_TRANSACT;
        path = pipe.unc;
    }

                pipeIn = new TransactNamedPipeInputStream( this );
            } else {
                pipeIn = new SmbFileInputStream(this,
                            (pipeType & 0xFFFF00FF) | SmbFile.O_EXCL);
            }
        }
        return pipeIn;
    }

    /**
     * Return the <code>OutputStream</code> used to write