Calling kextunload / kextload on mac (need sudo privilege)

AloyseTech

Hi,

I need to unload a bunch of driver (kext) at the beginning of my Qt Desktop application on Mac OS.
I tried with QProcess, but kextunload requires to have admin privileges.
Anyone knows a workaround? Or how to start a QProcess with sudo?
I need this to be easy for the end user : one only has to enter the admin password when prompted and the application does the rest.

Thanks in advance :)

SGaist

HI and welcome to devnet,

This stack overflow answer might be an interesting starting point.

Hope it helps

AloyseTech

Hi,

I have found something that works but that is not really "clean" in my opinion :

QString password = "yourRootPassword"; //could be asked with QInputDialog::getText(...)
QString cmd = QString("sudo -S kextunload -b %1 > /dev/null").arg(driverName);
FILE *pipe = popen(cmd.toStdString().c_str(), "w");
if(pipe != nullptr)
{
    fprintf(pipe, "%s\n", password.toStdString().c_str());
    if (ferror(pipe))
    {
        qDebug() << "Failed to write to pipe";
    }
    else
    {
        qDebug() << "Written to pipe";
    }
}
else
{
   qDebug() << "Failed to open pipe";
}
qDebug() << "Pipe returned : " << pclose(pipe);

I don't know how to use the Apple method linked by SGaist...