Qt / C ++在远程计算机上执行命令并与其提示进行交互

Question

I am developing a C++ program using the Qt 5 Framework and need to do the following:

1. Connect to a remote server using SSH
2. Execute commands like mkdir ~/testing
3. Execute commands like mysqldump -u test -p123 testdb -> testdb.sql

Basically the standard commands you would run as if you were using the terminal.

I looked into QProcess but it is limited and I don't feel comfortable using echo "password" | ssh -x hostname -l username, etc...

Is there any C++ or Qt library that can do what I am trying to accomplish?

Answer 1

You should learn how to configure ssh (with public keys) without any password (or just a passphrase added with ssh-add before starting your Qt application). Read some good ssh tutorial . Then use openssl and/or libssh etc...

Answer 2

I found a solution that fits my needs. If I do come up with a solution that is cross platform I will let you guys know. Here's how to make it work in QT on a Linux enviornment.

QStringList commands;
commands << "-hold";
commands << "-e";
commands << "ssh username@host 'cd /home/user/backups; mysqldump -u root -p mydb > mydb.sql; echo DONE!'";

QProcess *process = new QProcess(0);
process->setProcessChannelMode(QProcess::MergedChannels);
process->start("xterm", commands);

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

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

process->closeWriteChannel();
qDebug() << process->readAll();