1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtNetwork module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include <winsock2.h> 41 42 #include "qhostinfo_p.h" 43 #include <ws2tcpip.h> 44 #include <private/qsystemlibrary_p.h> 45 #include <qmutex.h> 46 #include <qbasicatomic.h> 47 #include <qurl.h> 48 49 QT_BEGIN_NAMESPACE 50 51 //#define QHOSTINFO_DEBUG 52 53 //### 54 #ifndef NI_MAXHOST // already defined to 1025 in ws2tcpip.h? 55 #define NI_MAXHOST 1024 56 #endif 57 fromName(const QString & hostName)58QHostInfo QHostInfoAgent::fromName(const QString &hostName) 59 { 60 QSysInfo::machineHostName(); // this initializes ws2_32.dll 61 62 QHostInfo results; 63 64 #if defined(QHOSTINFO_DEBUG) 65 qDebug("QHostInfoAgent::fromName(%s) looking up...", 66 hostName.toLatin1().constData()); 67 #endif 68 69 QHostAddress address; 70 if (address.setAddress(hostName)) 71 return reverseLookup(address); 72 73 return lookup(hostName); 74 } 75 76 // QString QHostInfo::localDomainName() defined in qnetworkinterface_win.cpp 77 78 QT_END_NAMESPACE 79