i = j = 0;
    }
    public void update(byte[] src, int soff, int slen, byte[] dst, int doff)
    {
        int slim;

        slim = soff + slen;
        while (soff < slim) {
            i = (i + 1) & 0xff;
            j = (j + s[i]) & 0xff;
            byte t = s[i];
            s[i] = s[j];
            s[j] = t;
            dst[doff++] = (byte)(src[soff++] ^ s[(s[i] + s[j]) & 0xff]);
        }
    }

            if ( ( off + stub_frag_len ) > in.length ) {
                // shouldn't happen if alloc_hint is correct or greater
                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;
        }
        return in;

                    len -= cnt;
                    off += cnt;
                }
                else {
                    if ( log.isTraceEnabled() ) {
                        log.trace(String.format("Wrote at %d remain %d off %d len %d", this.fp, len - w, off, w));
                    }
                    this.req.setParam(fh.getFid(), this.fp, len - w, b, off, w);
                    th.send(this.req, this.rsp);

            file.log.println( "write: fid=" + file.fid + ",off=" + off + ",len=" + len );

        int w;
        do {
            w = len > writeSize ? writeSize : len;
            if( useNTSmbs ) {
                reqx.setParam( file.fid, fp, len - w, b, off, w );
if ((flags & 1) != 0) {
    reqx.setParam( file.fid, fp, len, b, off, w );
    reqx.writeMode = 0x8;
} else {
    reqx.writeMode = 0;
}

    @Override
    public int recv ( byte[] buf, int off, int len ) throws IOException {
        return getInput().readDirect(buf, off, len);

    }


    @Override
    public void send ( byte[] buf, int off, int length ) throws IOException {
        getOutput().writeDirect(buf, off, length, 1);
    }


    /**
     * 
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbPipeHandleInternal#getPipeType()

    }


    static int readn ( InputStream in, byte[] b, int off, int len ) throws IOException {
        int i = 0, n;

        while ( i < len ) {
            n = in.read(b, off + i, len - i);
            if ( n <= 0 ) {
                break;
            }
            i += n;
        }

        return i;
    }

    static LogStream log = LogStream.getInstance();

    public static int readn( InputStream in,
                byte[] b,
                int off,
                int len ) throws IOException {
        int i = 0, n = -5;

        while (i < len) {
            n = in.read( b, off + i, len - i );
            if (n <= 0) {
                break;
            }
            i += n;
        }

        return i;
    }

     * 
     * @param in
     * @param b
     * @param off
     * @param len
     * @return number of bytes read
     * @throws IOException
     */
    public static int readn ( InputStream in, byte[] b, int off, int len ) throws IOException {
        int i = 0, n = -5;

        if ( off + len > b.length ) {

            stream.write(b);
            collector.write(b);
        }

        public void write(byte[] b, int off, int len) throws IOException {
            stream.write(b, off, len);
            collector.write(b, off, len);
        }

        public void write(int b) throws IOException {
            stream.write(b);
            collector.write(b);
        }

    }

    private long sourceOffset;
    private long targetOffset;
    private int length;


    /**
     * @param soff
     * @param toff
     * @param len
     */
    public SrvCopychunk ( long soff, long toff, int len ) {
        this.sourceOffset = soff;
        this.targetOffset = toff;
        this.length = len;
    }


    /**
     * {@inheritDoc}
     *