Starting telnet from Qt application



  • I need to start telnet on Qt application using Qprocess. I have the following implemented but it does not seem to work.

    @
    // calling function
    QStringList args;
    dbg1Socket = new QProcess(this);
    connect(dbg1Socket, SIGNAL(stateChanged(QProcess::ProcessState)), this, SLOT(debug1_stateChanged QProcess::ProcessState)));
    args << getIPAddress() + " 1705";
    dbg1Socket->start("telnet.exe", args);

    void test::debug1_stateChanged(QProcess::ProcessState state)
    {
    if (state == QProcess::NotRunning)
    qDebug() << "Unable to start telnet.";
    else if (state == QProcess::Starting)
    qDebug() << "Telnet starting...";
    else if (state == QProcess::Running)
    {
    qDebug() << "Telnet program started";
    connect(dbg1Socket, SIGNAL(readyReadStandardOutput()), this, SLOT(readDebug1()));
    }
    }
    @

    I always get this output -
    Telnet starting...
    Unable to start telnet.

    Can someone tell me what I am doing wrong? Thanks!



  • You are passing the address and port number together as a single argument rather than the two separate arguments that "telnet" will be expecting.



  • @
    args << getIPAddress() << QString("1705");
    @

    There may be some other arguments need to be set though. I'm not familiar with Windows's telnet command, but I did ran into some input/output redirection issues using ssh under Un*x and Plink under Windows.


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.