Client-server application

za83

I worked with QT long ago. But I thought this code must be though compiling. Isn't it?

SGaist

In addition to what Andre said: Are sure that "../ssl/server.crt" is the right path ?

za83

I created an application object but code is still not compiling as I expected.
main.cpp:10: error: no match for 'operator=' in '((Server*)this)->Server::m_socket = (operator new(8u), (<statement>, ((QSslSocket*)<anonymous>)))'
[code]
#include <QApplication>
#include <QtNetwork/QSslSocket>
#include <QDebug>

class Server : public QObject
{
public:
void f()
{
m_socket = new QSslSocket(this);
m_socket->setSocketDescriptor(handle);
m_socket->setProtocol(QSsl::SslV3);

    QByteArray key;
    QByteArray cert;

    QFile file_key("../ssl/server.key");
    if(file_key.open(QIODevice::ReadOnly))
    {
        key = file_key.readAll();
        file_key.close();
    }
    else
    {
        qDebug() << file_key.errorString();
    }

    QFile file_cert("../ssl/server.crt");
    if(file_cert.open(QIODevice::ReadOnly))
    {
        cert = file_cert.readAll();
        file_cert.close();
    }
    else
    {
        qDebug() << file_cert.errorString();
    }

    //qDebug() << key + "\n" + cert;


    QSslKey ssl_key(key, QSsl::Rsa);

    QSslCertificate ssl_cert(cert);

    m_socket->setPrivateKey(ssl_key);
    m_socket->setLocalCertificate(ssl_cert);
    m_socket->startServerEncryption();
}

private:
QSslSocket m_socket;
};

int main( int argc, char **argv )
{
QApplication app(argc, argv);

if (!QSslSocket::supportsSsl()) {
QMessageBox::information(0, "Secure Socket Server",
             "This system does not support OpenSSL.");
    return -1;
}

Server server;
server.f();

return app.exec(&#41;;

}
[/code]

SGaist

Have a look at the declaration of m_socket

za83

Thanks.
error: variable 'QSslKey ssl_key' has initializer but incomplete type (Solved #include <QtNetwork/QSslKey>)

za83

How to include libs?
I wrote
[code]
LIBS += -L/C:/OpenSSL-Win32/lib ssleay32.lib libeay32.lib
[/code]
error: ssleay32.lib: No such file or directory

SGaist

That's not all for m_socket.

Please, search the documentation a bit "Other libraries":http://qt-project.org/doc/qt-4.8/qmake-project-files.html#declaring-other-libraries

za83

Thanks but unfortunately it does not help me.

main.cpp:13: error: undefined reference to _imp___ZN10QSslSocketC1EP7QObject' main.cpp:15: error: undefined reference to _imp___ZN10QSslSocket11setProtocolEN4QSsl11SslProtocolE'
main.cpp:45: error: undefined reference to _imp___ZN7QSslKeyC1ERK10QByteArrayN4QSsl12KeyAlgorithmENS3_14EncodingFormatENS3_7KeyTypeES2_' main.cpp:47: error: undefined reference to _imp___ZN15QSslCertificateC1ERK10QByteArrayN4QSsl14EncodingFormatE'
main.cpp:49: error: undefined reference to _imp___ZN10QSslSocket13setPrivateKeyERK7QSslKey' main.cpp:50: error: undefined reference to _imp___ZN10QSslSocket19setLocalCertificateERK15QSslCertificate'
main.cpp:51: error: undefined reference to _imp___ZN10QSslSocket21startServerEncryptionEv' main.cpp:51: error: undefined reference to _imp___ZN15QSslCertificateD1Ev'
main.cpp:51: error: undefined reference to _imp___ZN7QSslKeyD1Ev' main.cpp:45: error: undefined reference to _imp___ZN7QSslKeyD1Ev'
main.cpp:51: error: undefined reference to _imp___ZN15QSslCertificateD1Ev' main.cpp:51: error: undefined reference to _imp___ZN7QSslKeyD1Ev'

SGaist

Sure it helps, that's a new error. Did you build Qt with ssl support ?

za83

I did not build Qt. I just installed it on Windows.
How can I do it? Can I use that build for commercial applications under LGPL?

tobias.hunger

You are ship your commercial applications under LGPL license? Those are of course compatible with LGPL Qt.