mirror of
https://github.com/crystalidea/qt6windows7.git
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67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QtNetwork>
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class Server : public QObject
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{
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Q_OBJECT
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public:
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Server() { connect(&serverSocket, &QIODevice::readyRead, this, &Server::sendEcho); }
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bool bind(quint16 port)
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{
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const bool result = serverSocket.bind(QHostAddress::Any, port,
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QUdpSocket::ReuseAddressHint
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| QUdpSocket::ShareAddress);
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if (result) {
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printf("OK\n");
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} else {
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printf("FAILED: %s\n", qPrintable(serverSocket.errorString()));
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}
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fflush(stdout);
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return result;
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}
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private slots:
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void sendEcho()
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{
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QHostAddress senderAddress;
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quint16 senderPort;
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char data[1024];
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qint64 bytes = serverSocket.readDatagram(data, sizeof(data), &senderAddress, &senderPort);
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if (bytes == 1 && data[0] == '\0')
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QCoreApplication::instance()->quit();
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for (int i = 0; i < bytes; ++i)
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data[i] += 1;
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serverSocket.writeDatagram(data, bytes, senderAddress, senderPort);
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}
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private:
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QUdpSocket serverSocket;
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};
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int main(int argc, char **argv)
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{
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QCoreApplication app(argc, argv);
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QStringList arguments = QCoreApplication::arguments();
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arguments.pop_front();
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quint16 port = 0;
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if (!arguments.isEmpty())
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port = arguments.constFirst().toUShort();
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if (!port) {
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printf("Specify port number\n");
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return -1;
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}
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Server server;
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if (!server.bind(port))
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return -2;
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return app.exec();
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}
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#include "main.moc"
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