QPacket::QPacket(clientOpcode opcode)
{
    QByteArray dev;
    QDataStream out(&dev, QIODevice::WriteOnly);
    out << (quint16) 0;
    out << (quint8) opcode;
}

QPacket packet(C_AUTH_START);
packet.out << "foo";
packet.out << "bar";

void setStream(QDataStream stream) { out = stream; }

void initStream(QDataStream stream) { out.setDevice(stream.device()); }