// Version (WITNESS_VERSION structure)
        if (version != null) {
            buf.enc_ndr_long(version.getMajorVersion());
            buf.enc_ndr_long(version.getMinorVersion());
        } else {
            buf.enc_ndr_long(WITNESS_INTERFACE_VERSION_MAJOR);
            buf.enc_ndr_long(WITNESS_INTERFACE_VERSION_MINOR);
        }

        // NetName (wide string pointer)

    private String decodeWideStringPointer(NdrBuffer buf) throws NdrException {
        int pointer = buf.dec_ndr_long();
        if (pointer == 0) {
            return null; // NULL pointer
        }

        int maxCount = buf.dec_ndr_long();
        int offset = buf.dec_ndr_long();
        int actualCount = buf.dec_ndr_long();

        if (actualCount <= 0) {
            return "";
        }

    @Override
    public void decode_out(NdrBuffer buf) throws NdrException {
        decodeWitnessParameters(buf);
        // The return code is always the last 4 bytes in MS-SWN responses
        returnCode = buf.dec_ndr_long();
    }