获取有效的MAC地址

获取有效的MAC地址

QString getValidMacAddr()
{
    foreach(QNetworkInterface networkInferface, QNetworkInterface::allInterfaces())
    {
        //get current valid network card
        if ( networkInferface.flags().testFlag(QNetworkInterface::IsUp)
            && networkInferface.flags().testFlag(QNetworkInterface::IsRunning)
            && !networkInferface.flags().testFlag(QNetworkInterface::IsLoopBack))
        {
            //There may be a virtual network card, but we only take the first valid card
            return networkInferface.hardwareAddress();
        }
    }
}