/**************************************************************************** ** ** 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 #include #include #include #include #include #include #include #include #include #include #include #include #include const int bufsize = 16*1024; char buf[bufsize]; int main(int argc, char**argv) { QCoreApplication app(argc, argv); // create it QAbstractSocketEngine *socketEngine = QAbstractSocketEngine::createSocketEngine(QAbstractSocket::TcpSocket, QNetworkProxy(QNetworkProxy::NoProxy), 0); if (!socketEngine) { qDebug() << "could not create engine"; exit(1); } // initialize it bool initialized = socketEngine->initialize(QAbstractSocket::TcpSocket, QAbstractSocket::IPv4Protocol); if (!initialized) { qDebug() << "not able to initialize engine"; exit(1); } // wait for connected int r = socketEngine->connectToHost(QHostAddress("74.125.77.99"), 80); // google bool readyToRead = false; bool readyToWrite = false; socketEngine->waitForReadOrWrite(&readyToRead, &readyToWrite, true, true, 10*1000); if (r <= 0) //timeout or error exit(1); if (readyToWrite) { // write the request QByteArray request("GET /robots.txt HTTP/1.0\r\n\r\n"); int ret = socketEngine->write(request.constData(), request.length()); if (ret == request.length()) { // read the response in a loop do { bool waitReadResult = socketEngine->waitForRead(10*1000); int available = socketEngine->bytesAvailable(); if (waitReadResult == true && available == 0) { // disconnected exit(0); } qFill(buf, buf + bufsize, 0); ret = socketEngine->read(buf, available); if (ret > 0) { printf("%s", buf); } else { // some failure when reading exit(1); } } while (1); } else { qDebug() << "failed writing"; } } else { qDebug() << "failed connecting"; } delete socketEngine; }