Cannot connect to wifi name has character represented

hooanghiep

i am trying to connect wifi by using nmcli. When wifi name has character represented then i got error:
Syntax error: Unterminated quoted string
here is my code:

void WifiThread::connectWifi(QString strName, QString strPassword) 
{
    QString strTmp = QString("nmcli --wait 20 device wifi connect \"%1\" password \"%2\" 2>&1").arg(strName, strPassword);
        QByteArray ba = strTmp.toUtf8();
        const char *pCommand = ba.data();
        system(pCommand);
}

thank you so much for your help.

SGaist

Hi,

What characters are causing trouble ?
Why not use QProcess ?

hooanghiep

all characters in this link: https://www.austincc.edu/rickster/COSC1320/handouts/escchar.htm

jsulm

@hooanghiep You need to escape such characters, like

nmcli --wait 20 device wifi connect \"abcd\\\"efg\" password ...

First 2 backslashes are there to put a backslash into your string, third one is to escape " in C++.

hooanghiep

@jsulm how about these characters: "\", " ' ", "?"
thanks for your answer. :)

jsulm

@hooanghiep said in Cannot connect to wifi name has character represented:

how about these characters

It's same for all characters which needs to be escaped in a shell.