Scanning WiFi with Qt & Linux

darkstaring

Hi, i wold like how to scan WiFi with QT... i try with QProcess and iwlist under linux...

void MainWindow::on_scan_clicked()
{
    ui->scan->setText("Scanning");

    QString output;
    QString devices_selezionato = ui->devices->currentText();
    qDebug() << "SELECTED -> " << devices_selezionato ;
    QProcess system;
    QString command_set = "ip link set dev "+devices_selezionato+" down && sleep 1 && ip link set dev "+devices_selezionato+" up && iwlist "+devices_selezionato+" scan | grep -E 'Address|ESSID' | cut -c21- | sed 's/Address\: //g' | sed 's/ESSID\://g' ";//| sed 's/\"//g'";
    //qDebug()<<command_set;
    system.start("/bin/sh -c \""+command_set+"\"");
    system.waitForFinished();
    output = (system.readAllStandardOutput());
    output = (output + system.readAllStandardError());
    qDebug()<<"TROVO QUESTE RETI"<<output;

    QStringList outputlist = output.split("\n");

   // ui->lista_reti->setStyleSheet("overflow: auto; color:red;");

    int i = 0;
    QString col0;
    QString col1;

    foreach(QString value, outputlist)
    {
        i++;
        //ui->lista_reti->setText(ui->lista_reti->text() + value.replace("\n", "").replace("\"", "") + "\n");
        QTreeWidgetItem * item = new QTreeWidgetItem();
        item->setTextAlignment(0,Qt::AlignVCenter);
        item->setTextAlignment(1,Qt::AlignHCenter);


        if(i%2) { col0 = value; }
        else { col1 = value;}
        if(! col0.isEmpty() && !col1.isEmpty())
        { item->setText(0,col0); item->setText(1,col1); ui->treeWidgetWiFis->addTopLevelItem(item); col0="";col1=""; }

        qDebug() << value;
    }
}

Exists a method for scan WiFi directly with QT ?

Thanks Francesco

SGaist

Hi,

If you are thinking about a replacement of iwlist, there's none directly as it is outside the scope of Qt.

darkstaring

so I can not scan WiFi with Qt?

SGaist

The way you did it using QPorces seems good it this point.

darkstaring

thanks ;)....
Francesco