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}
     *

        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]);
        }
    }

    }

    public synchronized void write( byte[] b, int off, int len ) throws IOException {
        if( len > 0xFFFF ) {
            throw new IOException( "write too large: " + len );
        } else if( off < 4 ) {
            throw new IOException( "NetBIOS socket output buffer requires 4 bytes available before off" );
        }

        off -= 4;

        b[off + 0] = (byte)SessionServicePacket.SESSION_MESSAGE;

        super(config, SMB_COM_WRITE);
        this.fid = fid;
        this.count = len;
        this.offset = offset;
        this.remaining = remaining;
        this.b = b;
        this.off = off;
    }


    /**
     * 
     * @param fid
     * @param offset
     * @param remaining
     * @param b
     * @param off
     * @param len
     */

            System.arraycopy( b, off, pipe_buf, nxt_idx, i );
            off += i;
            System.arraycopy( b, off, pipe_buf, 0, len - i ); 
        } else {
            System.arraycopy( b, off, pipe_buf, nxt_idx, len );
        }
        nxt_idx = ( nxt_idx + len ) % pipe_buf.length;
        used += len;
        return len;
    }
    public int dce_read( byte[] b, int off, int len ) throws IOException {

                if ((off + stub_frag_len) > stub.length) {
                    // shouldn't happen if alloc_hint is correct or greater
                    byte[] tmp = new byte[off + stub_frag_len];
                    System.arraycopy(stub, 0, tmp, 0, off);
                    stub = tmp;
                }

                System.arraycopy(frag, 24, stub, off, stub_frag_len);
                off += stub_frag_len;

        this.b = b;
        this.off = off;
        dataLength = len;
        command = SMB_COM_WRITE_ANDX;
    }

    void setParam( int fid, long offset, int remaining,
                    byte[] b, int off, int len ) {
        this.fid = fid;
        this.offset = offset;
        this.remaining = remaining;
        this.b = b;
        this.off = off;
        dataLength = len;

)

// Test BoolFlag.String()
func TestBoolFlagString(t *testing.T) {
	var bf BoolFlag

	testCases := []struct {
		flag           BoolFlag
		expectedResult string
	}{
		{bf, "off"},
		{BoolFlag(true), "on"},
		{BoolFlag(false), "off"},
	}

	for _, testCase := range testCases {
		str := testCase.flag.String()
		if testCase.expectedResult != str {
			t.Fatalf("expected: %v, got: %v", testCase.expectedResult, str)
		}

class SmbComReadAndXResponse extends AndXServerMessageBlock {

    byte[] b;
    int off, dataCompactionMode, dataLength, dataOffset;

    SmbComReadAndXResponse() {
    }
    SmbComReadAndXResponse( byte[] b, int off ) {
        this.b = b;
        this.off = off;
    }

    void setParam( byte[] b, int off ) {
        this.b = b;
        this.off = off;
    }
    int writeParameterWordsWireFormat( byte[] dst, int dstIndex ) {

        }

        while ( off < length ) {
            int r = this.handle.recv(buf, off, length - off);
            if ( r == 0 ) {
                throw new IOException("Unexpected EOF");
            }
            off += r;
        }
        return off;
    }


    @Override
    public void close () throws IOException {
        super.close();
        try {
            this.handle.close();