676 lines
20 KiB
C++
676 lines
20 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// Copyright (C) 2016 Intel Corporation.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
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// When using WinSock2 on Windows, it's the first thing that can be included
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// (except qglobal.h), or else you'll get tons of compile errors
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#include <qglobal.h>
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#if defined(Q_OS_WIN)
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# include <winsock2.h>
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# include <ws2tcpip.h>
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#endif
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#include <qhostinfo.h>
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#include "private/qhostinfo_p.h"
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#include "private/qnativesocketengine_p.h"
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#include <QCoreApplication>
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#include <QDebug>
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#include <QTcpServer>
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#include <QTcpSocket>
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#include <QTest>
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#include <QTestEventLoop>
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#include <private/qthread_p.h>
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#include <sys/types.h>
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#if defined(Q_OS_WIN)
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# include <qt_windows.h>
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# ifdef gai_strerror
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# undef gai_strerror
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# define gai_strerror gai_strerrorA
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# endif
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#else
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# include <netdb.h>
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# include <sys/socket.h>
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# include <unistd.h>
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#endif
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#ifndef NI_MAXHOST
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# define NI_MAXHOST 1025
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#endif
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#include "../../../network-settings.h"
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#define TEST_DOMAIN ".test.qt-project.org"
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class tst_QHostInfo : public QObject
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{
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Q_OBJECT
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private slots:
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void init();
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void initTestCase();
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void swapFunction();
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void moveOperator();
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void getSetCheck();
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void staticInformation();
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void lookupIPv4_data();
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void lookupIPv4();
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void lookupIPv6_data();
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void lookupIPv6();
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void lookupConnectToFunctionPointer_data();
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void lookupConnectToFunctionPointer();
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void lookupConnectToFunctionPointerDeleted();
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void lookupConnectToLambda_data();
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void lookupConnectToLambda();
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void reverseLookup_data();
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void reverseLookup();
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void blockingLookup_data();
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void blockingLookup();
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void raceCondition();
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void threadSafety();
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void threadSafetyAsynchronousAPI();
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void multipleSameLookups();
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void multipleDifferentLookups_data();
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void multipleDifferentLookups();
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void cache();
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void abortHostLookup();
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protected slots:
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void resultsReady(const QHostInfo &);
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private:
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bool ipv6LookupsAvailable;
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bool ipv6Available;
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bool lookupDone;
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int lookupsDoneCounter;
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QHostInfo lookupResults;
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};
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void tst_QHostInfo::swapFunction()
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{
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QHostInfo obj1, obj2;
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obj1.setError(QHostInfo::HostInfoError(0));
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obj2.setError(QHostInfo::HostInfoError(1));
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obj1.swap(obj2);
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QCOMPARE(QHostInfo::HostInfoError(0), obj2.error());
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QCOMPARE(QHostInfo::HostInfoError(1), obj1.error());
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}
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void tst_QHostInfo::moveOperator()
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{
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QHostInfo obj1, obj2, obj3(1);
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obj1.setError(QHostInfo::HostInfoError(0));
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obj2.setError(QHostInfo::HostInfoError(1));
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obj1 = std::move(obj2);
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obj2 = obj3;
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QCOMPARE(QHostInfo::HostInfoError(1), obj1.error());
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QCOMPARE(obj3.lookupId(), obj2.lookupId());
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}
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// Testing get/set functions
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void tst_QHostInfo::getSetCheck()
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{
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QHostInfo obj1;
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// HostInfoError QHostInfo::error()
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// void QHostInfo::setError(HostInfoError)
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obj1.setError(QHostInfo::HostInfoError(0));
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QCOMPARE(QHostInfo::HostInfoError(0), obj1.error());
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obj1.setError(QHostInfo::HostInfoError(1));
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QCOMPARE(QHostInfo::HostInfoError(1), obj1.error());
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// int QHostInfo::lookupId()
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// void QHostInfo::setLookupId(int)
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obj1.setLookupId(0);
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QCOMPARE(0, obj1.lookupId());
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obj1.setLookupId(INT_MIN);
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QCOMPARE(INT_MIN, obj1.lookupId());
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obj1.setLookupId(INT_MAX);
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QCOMPARE(INT_MAX, obj1.lookupId());
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}
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void tst_QHostInfo::staticInformation()
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{
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qDebug() << "Hostname:" << QHostInfo::localHostName();
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qDebug() << "Domain name:" << QHostInfo::localDomainName();
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}
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void tst_QHostInfo::initTestCase()
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{
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ipv6Available = false;
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ipv6LookupsAvailable = false;
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QTcpServer server;
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if (server.listen(QHostAddress("::1"))) {
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// We have IPv6 support
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ipv6Available = true;
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}
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// check if the system getaddrinfo can do IPv6 lookups
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struct addrinfo hint, *result = 0;
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memset(&hint, 0, sizeof hint);
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hint.ai_family = AF_UNSPEC;
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#ifdef AI_ADDRCONFIG
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hint.ai_flags = AI_ADDRCONFIG;
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#endif
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int res = getaddrinfo("::1", "80", &hint, &result);
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if (res == 0) {
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// this test worked
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freeaddrinfo(result);
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res = getaddrinfo("aaaa-single" TEST_DOMAIN, "80", &hint, &result);
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if (res == 0 && result != 0 && result->ai_family != AF_INET) {
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freeaddrinfo(result);
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ipv6LookupsAvailable = true;
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}
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}
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// run each testcase with and without test enabled
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QTest::addColumn<bool>("cache");
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QTest::newRow("WithCache") << true;
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QTest::newRow("WithoutCache") << false;
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}
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void tst_QHostInfo::init()
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{
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// delete the cache so inidividual testcase results are independent from each other
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qt_qhostinfo_clear_cache();
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QFETCH_GLOBAL(bool, cache);
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qt_qhostinfo_enable_cache(cache);
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}
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void tst_QHostInfo::lookupIPv4_data()
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{
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QTest::addColumn<QString>("hostname");
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QTest::addColumn<QString>("addresses");
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QTest::addColumn<int>("err");
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QTest::newRow("empty") << "" << "" << int(QHostInfo::HostNotFound);
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QTest::newRow("single_ip4") << "a-single" TEST_DOMAIN << "192.0.2.1" << int(QHostInfo::NoError);
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QTest::newRow("multiple_ip4") << "a-multi" TEST_DOMAIN << "192.0.2.1 192.0.2.2 192.0.2.3" << int(QHostInfo::NoError);
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QTest::newRow("literal_ip4") << "192.0.2.1" << "192.0.2.1" << int(QHostInfo::NoError);
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QTest::newRow("notfound") << "invalid" TEST_DOMAIN << "" << int(QHostInfo::HostNotFound);
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QTest::newRow("idn-ace") << "a-single.xn--alqualond-34a" TEST_DOMAIN << "192.0.2.1" << int(QHostInfo::NoError);
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QTest::newRow("idn-unicode") << QString::fromLatin1("a-single.alqualond\353" TEST_DOMAIN) << "192.0.2.1" << int(QHostInfo::NoError);
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}
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void tst_QHostInfo::lookupIPv4()
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{
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QFETCH(QString, hostname);
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QFETCH(int, err);
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QFETCH(QString, addresses);
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lookupDone = false;
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QHostInfo::lookupHost(hostname, this, SLOT(resultsReady(QHostInfo)));
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QTestEventLoop::instance().enterLoop(10);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(lookupDone);
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if ((int)lookupResults.error() != (int)err) {
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qWarning() << hostname << "=>" << lookupResults.errorString();
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}
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QCOMPARE((int)lookupResults.error(), (int)err);
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QStringList tmp;
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for (int i = 0; i < lookupResults.addresses().size(); ++i)
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tmp.append(lookupResults.addresses().at(i).toString());
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tmp.sort();
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QStringList expected = addresses.split(' ');
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expected.sort();
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QCOMPARE(tmp.join(' '), expected.join(' '));
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}
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void tst_QHostInfo::lookupIPv6_data()
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{
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QTest::addColumn<QString>("hostname");
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QTest::addColumn<QString>("addresses");
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QTest::addColumn<int>("err");
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QTest::newRow("aaaa-single") << "aaaa-single" TEST_DOMAIN << "2001:db8::1" << int(QHostInfo::NoError);
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QTest::newRow("aaaa-multi") << "aaaa-multi" TEST_DOMAIN << "2001:db8::1 2001:db8::2 2001:db8::3" << int(QHostInfo::NoError);
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QTest::newRow("a-plus-aaaa") << "a-plus-aaaa" TEST_DOMAIN << "198.51.100.1 2001:db8::1:1" << int(QHostInfo::NoError);
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// avoid using real IPv6 addresses here because this will do a DNS query
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// real addresses are between 2000:: and 3fff:ffff:ffff:ffff:ffff:ffff:ffff
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QTest::newRow("literal_ip6") << "f001:6b0:1:ea:202:a5ff:fecd:13a6" << "f001:6b0:1:ea:202:a5ff:fecd:13a6" << int(QHostInfo::NoError);
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QTest::newRow("literal_shortip6") << "f001:618:1401::4" << "f001:618:1401::4" << int(QHostInfo::NoError);
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}
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void tst_QHostInfo::lookupIPv6()
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{
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QFETCH(QString, hostname);
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QFETCH(int, err);
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QFETCH(QString, addresses);
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if (!ipv6LookupsAvailable)
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QSKIP("This platform does not support IPv6 lookups");
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lookupDone = false;
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QHostInfo::lookupHost(hostname, this, SLOT(resultsReady(QHostInfo)));
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QTestEventLoop::instance().enterLoop(10);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(lookupDone);
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QCOMPARE((int)lookupResults.error(), (int)err);
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QStringList tmp;
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for (int i = 0; i < lookupResults.addresses().size(); ++i)
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tmp.append(lookupResults.addresses().at(i).toString());
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tmp.sort();
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QStringList expected = addresses.split(' ');
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expected.sort();
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QCOMPARE(tmp.join(' ').toLower(), expected.join(' ').toLower());
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}
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void tst_QHostInfo::lookupConnectToFunctionPointer_data()
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{
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lookupIPv4_data();
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}
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void tst_QHostInfo::lookupConnectToFunctionPointer()
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{
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QFETCH(QString, hostname);
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QFETCH(int, err);
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QFETCH(QString, addresses);
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lookupDone = false;
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QHostInfo::lookupHost(hostname, this, &tst_QHostInfo::resultsReady);
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QTestEventLoop::instance().enterLoop(10);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(lookupDone);
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if (int(lookupResults.error()) != int(err))
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qWarning() << hostname << "=>" << lookupResults.errorString();
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QCOMPARE(int(lookupResults.error()), int(err));
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QStringList tmp;
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for (const auto &result : lookupResults.addresses())
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tmp.append(result.toString());
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tmp.sort();
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QStringList expected = addresses.split(' ');
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expected.sort();
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QCOMPARE(tmp.join(' '), expected.join(' '));
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}
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void tst_QHostInfo::lookupConnectToFunctionPointerDeleted()
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{
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{
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QObject contextObject;
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QHostInfo::lookupHost("localhost", &contextObject, [](const QHostInfo){
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QFAIL("This should never be called!");
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});
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}
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QTestEventLoop::instance().enterLoop(3);
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}
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void tst_QHostInfo::lookupConnectToLambda_data()
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{
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lookupIPv4_data();
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}
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void tst_QHostInfo::lookupConnectToLambda()
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{
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QFETCH(QString, hostname);
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QFETCH(int, err);
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QFETCH(QString, addresses);
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lookupDone = false;
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QHostInfo::lookupHost(hostname, [this](const QHostInfo &hostInfo) {
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resultsReady(hostInfo);
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});
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QTestEventLoop::instance().enterLoop(10);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(lookupDone);
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if (int(lookupResults.error()) != int(err))
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qWarning() << hostname << "=>" << lookupResults.errorString();
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QCOMPARE(int(lookupResults.error()), int(err));
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QStringList tmp;
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for (int i = 0; i < lookupResults.addresses().size(); ++i)
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tmp.append(lookupResults.addresses().at(i).toString());
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tmp.sort();
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QStringList expected = addresses.split(' ');
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expected.sort();
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QCOMPARE(tmp.join(' '), expected.join(' '));
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}
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static QStringList reverseLookupHelper(const QString &ip)
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{
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QStringList results;
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union qt_sockaddr {
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sockaddr a;
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sockaddr_in a4;
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sockaddr_in6 a6;
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} sa = {};
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QHostAddress addr(ip);
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if (addr.isNull()) {
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qWarning("Could not parse IP address: %ls", qUtf16Printable(ip));
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return results;
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}
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// from qnativesocketengine_p.h:
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QT_SOCKLEN_T len = setSockaddr(&sa.a, addr, /*port = */ 0);
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QByteArray name(NI_MAXHOST, Qt::Uninitialized);
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int ni_flags = NI_NAMEREQD | NI_NUMERICSERV;
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if (int r = getnameinfo(&sa.a, len, name.data(), name.size(), nullptr, 0, ni_flags)) {
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qWarning("Failed to reverse look up '%ls': %s", qUtf16Printable(ip), gai_strerror(r));
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} else {
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results << QString::fromLatin1(name, qstrnlen(name, name.size()));
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}
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return results;
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}
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void tst_QHostInfo::reverseLookup_data()
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{
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QTest::addColumn<QString>("address");
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QTest::addColumn<QStringList>("hostNames");
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QTest::addColumn<int>("err");
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QTest::addColumn<bool>("ipv6");
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QTest::newRow("dns.google") << QString("8.8.8.8") << reverseLookupHelper("8.8.8.8") << 0 << false;
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QTest::newRow("one.one.one.one") << QString("1.1.1.1") << reverseLookupHelper("1.1.1.1") << 0 << false;
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if (QStringList hostNames = reverseLookupHelper("2001:4860:4860::8888"); !hostNames.isEmpty())
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QTest::newRow("dns.google IPv6") << QString("2001:4860:4860::8888") << std::move(hostNames) << 0 << true;
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if (QStringList hostNames = reverseLookupHelper("2606:4700:4700::1111"); !hostNames.isEmpty())
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QTest::newRow("cloudflare IPv6") << QString("2606:4700:4700::1111") << std::move(hostNames) << 0 << true;
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QTest::newRow("bogus-name IPv6") << QString("1::2::3::4") << QStringList() << 1 << true;
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}
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void tst_QHostInfo::reverseLookup()
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{
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QFETCH(QString, address);
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QFETCH(QStringList, hostNames);
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QFETCH(int, err);
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QHostInfo info = QHostInfo::fromName(address);
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if (err == 0) {
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if (!hostNames.contains(info.hostName()))
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qDebug() << "Failure: expecting" << hostNames << ",got " << info.hostName();
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QVERIFY(hostNames.contains(info.hostName()));
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QCOMPARE(info.addresses().constFirst(), QHostAddress(address));
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} else {
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QCOMPARE(info.hostName(), address);
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QCOMPARE(info.error(), QHostInfo::HostNotFound);
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}
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}
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void tst_QHostInfo::blockingLookup_data()
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{
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lookupIPv4_data();
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if (ipv6LookupsAvailable)
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lookupIPv6_data();
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}
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void tst_QHostInfo::blockingLookup()
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{
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QFETCH(QString, hostname);
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QFETCH(int, err);
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QFETCH(QString, addresses);
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QHostInfo hostInfo = QHostInfo::fromName(hostname);
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QStringList tmp;
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for (int i = 0; i < hostInfo.addresses().size(); ++i)
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tmp.append(hostInfo.addresses().at(i).toString());
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tmp.sort();
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if ((int)hostInfo.error() != (int)err) {
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qWarning() << hostname << "=>" << lookupResults.errorString();
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}
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QCOMPARE((int)hostInfo.error(), (int)err);
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QStringList expected = addresses.split(' ');
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expected.sort();
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QCOMPARE(tmp.join(' ').toUpper(), expected.join(' ').toUpper());
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}
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void tst_QHostInfo::raceCondition()
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{
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for (int i = 0; i < 1000; ++i) {
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QTcpSocket socket;
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socket.connectToHost("invalid" TEST_DOMAIN, 80);
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}
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}
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class LookupThread : public QThread
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{
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protected:
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inline void run() override
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{
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QHostInfo info = QHostInfo::fromName("a-single" TEST_DOMAIN);
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QCOMPARE(info.errorString(), "Unknown error"); // no error
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QCOMPARE(info.error(), QHostInfo::NoError);
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QVERIFY(info.addresses().size() > 0);
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QCOMPARE(info.addresses().at(0).toString(), QString("192.0.2.1"));
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}
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};
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void tst_QHostInfo::threadSafety()
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{
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const int nattempts = 5;
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const int runs = 100;
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LookupThread thr[nattempts];
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for (int j = 0; j < runs; ++j) {
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for (int i = 0; i < nattempts; ++i)
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thr[i].start();
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for (int k = nattempts - 1; k >= 0; --k)
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thr[k].wait();
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}
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}
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class LookupReceiver : public QObject
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{
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Q_OBJECT
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public slots:
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void start();
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void resultsReady(const QHostInfo&);
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public:
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QHostInfo result;
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int numrequests;
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};
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void LookupReceiver::start()
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{
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|
for (int i=0;i<numrequests;i++)
|
|
QHostInfo::lookupHost(QString("a-single" TEST_DOMAIN), this, SLOT(resultsReady(QHostInfo)));
|
|
}
|
|
|
|
void LookupReceiver::resultsReady(const QHostInfo &info)
|
|
{
|
|
result = info;
|
|
numrequests--;
|
|
if (numrequests == 0 || info.error() != QHostInfo::NoError)
|
|
QThread::currentThread()->quit();
|
|
}
|
|
|
|
void tst_QHostInfo::threadSafetyAsynchronousAPI()
|
|
{
|
|
const int nattempts = 10;
|
|
const int lookupsperthread = 10;
|
|
QThread threads[nattempts];
|
|
LookupReceiver receivers[nattempts];
|
|
for (int i = 0; i < nattempts; ++i) {
|
|
QThread *thread = &threads[i];
|
|
LookupReceiver *receiver = &receivers[i];
|
|
receiver->numrequests = lookupsperthread;
|
|
receiver->moveToThread(thread);
|
|
connect(thread, SIGNAL(started()), receiver, SLOT(start()));
|
|
thread->start();
|
|
}
|
|
for (int k = nattempts - 1; k >= 0; --k)
|
|
QVERIFY(threads[k].wait(60000));
|
|
for (LookupReceiver &receiver : receivers) {
|
|
QCOMPARE(receiver.result.error(), QHostInfo::NoError);
|
|
QCOMPARE(receiver.result.addresses().at(0).toString(), QString("192.0.2.1"));
|
|
QCOMPARE(receiver.numrequests, 0);
|
|
}
|
|
}
|
|
|
|
// this test is for the multi-threaded QHostInfo rewrite. It is about getting results at all,
|
|
// not about getting correct IPs
|
|
void tst_QHostInfo::multipleSameLookups()
|
|
{
|
|
const int COUNT = 10;
|
|
lookupsDoneCounter = 0;
|
|
|
|
for (int i = 0; i < COUNT; i++)
|
|
QHostInfo::lookupHost("localhost", this, SLOT(resultsReady(QHostInfo)));
|
|
|
|
QElapsedTimer timer;
|
|
timer.start();
|
|
while (timer.elapsed() < 10000 && lookupsDoneCounter < COUNT) {
|
|
QTestEventLoop::instance().enterLoop(2);
|
|
}
|
|
QCOMPARE(lookupsDoneCounter, COUNT);
|
|
}
|
|
|
|
// this test is for the multi-threaded QHostInfo rewrite. It is about getting results at all,
|
|
// not about getting correct IPs
|
|
void tst_QHostInfo::multipleDifferentLookups_data()
|
|
{
|
|
QTest::addColumn<int>("repeats");
|
|
QTest::newRow("1") << 1;
|
|
QTest::newRow("2") << 2;
|
|
QTest::newRow("5") << 5;
|
|
QTest::newRow("10") << 10;
|
|
}
|
|
|
|
void tst_QHostInfo::multipleDifferentLookups()
|
|
{
|
|
QStringList hostnameList;
|
|
hostnameList << "a-single" TEST_DOMAIN
|
|
<< "a-multi" TEST_DOMAIN
|
|
<< "aaaa-single" TEST_DOMAIN
|
|
<< "aaaa-multi" TEST_DOMAIN
|
|
<< "a-plus-aaaa" TEST_DOMAIN
|
|
<< "multi" TEST_DOMAIN
|
|
<< "localhost" TEST_DOMAIN
|
|
<< "cname" TEST_DOMAIN
|
|
<< "127.0.0.1" << "----";
|
|
|
|
QFETCH(int, repeats);
|
|
const int COUNT = hostnameList.size();
|
|
lookupsDoneCounter = 0;
|
|
|
|
for (int i = 0; i < hostnameList.size(); i++)
|
|
for (int j = 0; j < repeats; ++j)
|
|
QHostInfo::lookupHost(hostnameList.at(i), this, SLOT(resultsReady(QHostInfo)));
|
|
|
|
QElapsedTimer timer;
|
|
timer.start();
|
|
while (timer.elapsed() < 60000 && lookupsDoneCounter < repeats*COUNT) {
|
|
QTestEventLoop::instance().enterLoop(2);
|
|
//qDebug() << "t:" << timer.elapsed();
|
|
}
|
|
QCOMPARE(lookupsDoneCounter, repeats*COUNT);
|
|
}
|
|
|
|
void tst_QHostInfo::cache()
|
|
{
|
|
QFETCH_GLOBAL(bool, cache);
|
|
if (!cache)
|
|
return; // test makes only sense when cache enabled
|
|
|
|
// reset slot counter
|
|
lookupsDoneCounter = 0;
|
|
|
|
// lookup once, wait in event loop, result should not come directly.
|
|
bool valid = true;
|
|
int id = -1;
|
|
QHostInfo result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);
|
|
QTestEventLoop::instance().enterLoop(5);
|
|
QVERIFY(!QTestEventLoop::instance().timeout());
|
|
QVERIFY(!valid);
|
|
QVERIFY(result.addresses().isEmpty());
|
|
|
|
// loopkup second time, result should come directly
|
|
valid = false;
|
|
result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);
|
|
QVERIFY(valid);
|
|
QVERIFY(!result.addresses().isEmpty());
|
|
|
|
// clear the cache
|
|
qt_qhostinfo_clear_cache();
|
|
|
|
// lookup third time, result should not come directly.
|
|
valid = true;
|
|
result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);
|
|
QTestEventLoop::instance().enterLoop(5);
|
|
QVERIFY(!QTestEventLoop::instance().timeout());
|
|
QVERIFY(!valid);
|
|
QVERIFY(result.addresses().isEmpty());
|
|
|
|
// the slot should have been called 2 times.
|
|
QCOMPARE(lookupsDoneCounter, 2);
|
|
}
|
|
|
|
void tst_QHostInfo::resultsReady(const QHostInfo &hi)
|
|
{
|
|
QVERIFY(QThread::currentThread() == thread());
|
|
lookupDone = true;
|
|
lookupResults = hi;
|
|
lookupsDoneCounter++;
|
|
QTestEventLoop::instance().exitLoop();
|
|
}
|
|
|
|
void tst_QHostInfo::abortHostLookup()
|
|
{
|
|
//reset counter
|
|
lookupsDoneCounter = 0;
|
|
bool valid = false;
|
|
int id = -1;
|
|
QHostInfo result = qt_qhostinfo_lookup("a-single" TEST_DOMAIN, this, SLOT(resultsReady(QHostInfo)), &valid, &id);
|
|
QVERIFY(!valid);
|
|
//it is assumed that the DNS request/response in the backend is slower than it takes to call abort
|
|
QHostInfo::abortHostLookup(id);
|
|
QTestEventLoop::instance().enterLoop(5);
|
|
QCOMPARE(lookupsDoneCounter, 0);
|
|
}
|
|
|
|
class LookupAborter : public QObject
|
|
{
|
|
Q_OBJECT
|
|
public slots:
|
|
void abort()
|
|
{
|
|
QHostInfo::abortHostLookup(id);
|
|
QThread::currentThread()->quit();
|
|
}
|
|
public:
|
|
int id;
|
|
};
|
|
|
|
QTEST_MAIN(tst_QHostInfo)
|
|
#include "tst_qhostinfo.moc"
|