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ssh to mobile or embedded device using qt program

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  • L Offline
    L Offline
    lina
    wrote on 23 Feb 2018, 07:38 last edited by
    #1

    Hi,
    I want to establish a connection with my android phone using Qprocess through ssh connection. I run sshDroid on my phone and I wrote the following code in qt to establish the ssh connection:
    QString commands = "ssh root@192.168.1.102:22" ;
    QProcess *process = new QProcess();
    process->start(commands);

    if(!process->waitForStarted()){
        qDebug() << "Could not wait to start...";
    }
    
    if(!process->waitForFinished()) {
        qDebug() << "Could not wait to finish...";
    }
    
    process->closeWriteChannel();
    qDebug() << process->readAll();
    

    I always get this response in my output window:
    Could not wait to start...
    Could not wait to finish...
    ""
    Do you have any idea to establish the connection?

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    0
    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 23 Feb 2018, 07:44 last edited by
      #2

      Hi,

      From where are you trying to establish the connection ? From your desktop ? If so, do you have the ssh client application installed ?

      What OS are you running on ?
      What version of Qt ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      L 2 Replies Last reply 23 Feb 2018, 07:58
      1
      • L Offline
        L Offline
        lina
        wrote on 23 Feb 2018, 07:55 last edited by
        #3

        Hi SGaist,
        yes it's a desktop application. No I didn't install ssh client. now it is on qt5.8.0 on win7 but I want to compile it with qtAndroid in the next step.

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        0
        • S SGaist
          23 Feb 2018, 07:44

          Hi,

          From where are you trying to establish the connection ? From your desktop ? If so, do you have the ssh client application installed ?

          What OS are you running on ?
          What version of Qt ?

          L Offline
          L Offline
          lina
          wrote on 23 Feb 2018, 07:58 last edited by
          #4

          @SGaist

          I am confused with ssh client, I thought that my program is a ssh client, isn't it?

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          • S SGaist
            23 Feb 2018, 07:44

            Hi,

            From where are you trying to establish the connection ? From your desktop ? If so, do you have the ssh client application installed ?

            What OS are you running on ?
            What version of Qt ?

            L Offline
            L Offline
            lina
            wrote on 23 Feb 2018, 08:50 last edited by
            #5

            @SGaist

            Thanks, I install ssh client and connect through it from my program. how can I give user and password of the remote device after the primary connection using qprocess?

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            • S Offline
              S Offline
              SGaist
              Lifetime Qt Champion
              wrote on 23 Feb 2018, 22:16 last edited by
              #6

              I just remembered something: ssh doesn't take a password from stdin so you can't do it with QProcess.

              You should take a look at his stackoverflow post which provides several possibilities.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              1 Reply Last reply
              1

              6/6

              23 Feb 2018, 22:16

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