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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtNetwork>

class Server : public QObject
{
    Q_OBJECT
public:
    Server(int port)
    {
        connect(&serverSocket, SIGNAL(readyRead()),
                this, SLOT(sendEcho()));
        if (serverSocket.bind(QHostAddress::Any, port,
                              QUdpSocket::ReuseAddressHint
                              | QUdpSocket::ShareAddress)) {
            printf("OK\n");
        } else {
            printf("FAILED\n");
        }
        fflush(stdout);
    }

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);

    Server server(app.arguments().at(1).toInt());
    
    return app.exec();
}

#include "main.moc"