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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtNetwork>
class Server : public QObject
{
Q_OBJECT
public:
Server() { connect(&serverSocket, &QIODevice::readyRead, this, &Server::sendEcho); }
bool bind(quint16 port)
{
const bool result = serverSocket.bind(QHostAddress::Any, port,
QUdpSocket::ReuseAddressHint
| QUdpSocket::ShareAddress);
if (result) {
printf("OK\n");
} else {
printf("FAILED: %s\n", qPrintable(serverSocket.errorString()));
}
fflush(stdout);
return result;
}
private slots:
void sendEcho()
{
QHostAddress senderAddress;
quint16 senderPort;
char data[1024];
qint64 bytes = serverSocket.readDatagram(data, sizeof(data), &senderAddress, &senderPort);
if (bytes == 1 && data[0] == '\0')
QCoreApplication::instance()->quit();
for (int i = 0; i < bytes; ++i)
data[i] += 1;
serverSocket.writeDatagram(data, bytes, senderAddress, senderPort);
}
private:
QUdpSocket serverSocket;
};
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QStringList arguments = QCoreApplication::arguments();
arguments.pop_front();
quint16 port = 0;
if (!arguments.isEmpty())
port = arguments.constFirst().toUShort();
if (!port) {
printf("Specify port number\n");
return -1;
}
Server server;
if (!server.bind(port))
return -2;
return app.exec();
}
#include "main.moc"
|
