move CLI text to QLabel

[rofiquzzaki]

I'm trying to send a remote command over libssh using Qt GUI.
Before this, I've tried to send remote command over libssh using Qt console Application. How can I read data from CLI and move it to QLabel?
this' from my CLI Program
main.cpp

...
char buffer[256];
int nbytes;
nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
while (nbytes > 0)
{
  if (fwrite(buffer, 1, nbytes, stdout) != nbytes)
  {
    ssh_channel_close(channel);
    ssh_channel_free(channel);
    return SSH_ERROR;
  }
  nbytes = ssh_channel_read(channel, buffer, sizeof(buffer), 0);
}
if (nbytes < 0)
{
  ssh_channel_close(channel);
  ssh_channel_free(channel);
  return SSH_ERROR;
}

and i'm trying to move it to QLabel
setatus.cpp

#include <QString>
#include <libssh/libssh.h>
#include "setatus.h"
#include <stdio.h>
#include <stdlib.h>

QString masukan;
char bufr[256];
int nbytes;
int statserv(ssh_session session)
{
    ssh_channel channel;
    int rc;

    channel = ssh_channel_new(session);

    rc = ssh_channel_open_session(channel);
    if (rc != SSH_OK)
    {
        ssh_channel_free(channel);
        return rc;
    }

    masukan = "uname -a";
    QByteArray masuk = masukan.toUtf8();
    char* msk = masuk.data();

    rc = ssh_channel_request_exec(channel, msk);

    if (rc != SSH_OK)
    {
        ssh_channel_close(channel);
        ssh_channel_free(channel);
        return rc;
    }

    //char bufr[256];
    //int nbytes;
    nbytes = ssh_channel_read(channel, bufr, sizeof(bufr), 0);
    while (nbytes > 0)
    {
              if (fwrite(bufr, 1, nbytes, stdout) != nbytes)
              {
                ssh_channel_close(channel);
                ssh_channel_free(channel);
                return SSH_ERROR;
              }
        nbytes = ssh_channel_read(channel, bufr, sizeof(bufr), 0);
    }
    if (nbytes < 0)
    {
        ssh_channel_close(channel);
        ssh_channel_free(channel);
        return SSH_ERROR;
    }

    ssh_channel_send_eof(channel);
    ssh_channel_close(channel);
    ssh_channel_free(channel);
    return SSH_OK;
    //return ui->label->setText(nbytes);
    //connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));

}

setatus.h

#ifndef SETATUS_H
#define SETATUS_H

#include <libssh/libssh.h>

extern int nbytes;

int statserv(ssh_session session);

class setatus
{
public:
    setatus();

};

#endif // SETATUS_H

I'm trying to call it in
main.cpp

...
                statserv(sesi_ssh);
                //setatus.statserv(sesi_ssh);
                gambar.show();
...

and this' my ui
rese.cpp

#include "rese.h"
#include "ui_rese.h"
#include "setatus.h"
#include <libssh/libssh.h>


//ssh_session sesi_ssh;

//int nbytes;
rese::rese(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::rese)
{
    ui->setupUi(this);
    //ui->tulisan->setText("status");
    //statserv(sesi_ssh);
    //label = new QLabel(this);
    //ui->tulisan->setText(nbytes);
    QString tls = QString::number(nbytes);
    ui->tulisan->setText(tls);


}



rese::~rese()
{
    delete ui;
}

but the QLabel just show "0".
can someone help me, please. I'm new to Qt and new to C++.
I'm trying to make software to manage server over libssh using Qt GUI Application.
Thanks in advance.

[SGaist]

Hi and welcome to devnet,

Rather than using extern variables you should encapsulate your ssh related code in a class and use it from your GUI. It will be easier to interface with it.

Hope it helps