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qt6windows7/tests/auto/network/socket/qudpsocket/tst_qudpsocket.cpp
kleuter 85d238dfda qt 6.5.1 original
2023-10-29 23:33:08 +01:00

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// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2017 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <QSignalSpy>
#include <QtEndian>
#if QT_CONFIG(process)
#include <QProcess>
#endif
#include <QScopeGuard>
#include <QVersionNumber>
#include <qcoreapplication.h>
#include <qfileinfo.h>
#include <qdatastream.h>
#include <qdebug.h>
#include <qrandom.h>
#include <qudpsocket.h>
#include <qhostaddress.h>
#include <qhostinfo.h>
#include <qtcpsocket.h>
#include <qmap.h>
#include <qelapsedtimer.h>
#include <qnetworkdatagram.h>
#include <QNetworkProxy>
#include <QNetworkInterface>
#include <qstringlist.h>
#include <QSet>
#include "../../../network-settings.h"
#include <QtTest/private/qemulationdetector_p.h>
#if defined(Q_OS_LINUX)
#define SHOULD_CHECK_SYSCALL_SUPPORT
#include <netinet/in.h>
#include <sys/socket.h>
#include <errno.h>
#endif
#ifdef Q_OS_UNIX
# include <sys/socket.h>
#endif
#if defined(Q_OS_LINUX) || defined(Q_OS_WIN) || defined(SO_NREAD)
# define RELIABLE_BYTES_AVAILABLE
#endif
Q_DECLARE_METATYPE(QHostAddress)
QT_FORWARD_DECLARE_CLASS(QUdpSocket)
class tst_QUdpSocket : public QObject
{
Q_OBJECT
private slots:
void initTestCase_data();
void initTestCase();
void init();
void cleanup();
void constructing();
void unconnectedServerAndClientTest();
void broadcasting();
void loop_data();
void loop();
void ipv6Loop_data();
void ipv6Loop();
void dualStack();
void dualStackAutoBinding();
void dualStackNoIPv4onV6only();
void connectToHost();
void bindAndConnectToHost();
void pendingDatagramSize();
void writeDatagram();
void performance();
void bindMode();
void writeDatagramToNonExistingPeer_data();
void writeDatagramToNonExistingPeer();
void writeToNonExistingPeer_data();
void writeToNonExistingPeer();
void outOfProcessConnectedClientServerTest();
void outOfProcessUnconnectedClientServerTest();
void zeroLengthDatagram();
void multicastTtlOption_data();
void multicastTtlOption();
void multicastLoopbackOption_data();
void multicastLoopbackOption();
void multicastJoinBeforeBind_data();
void multicastJoinBeforeBind();
void multicastLeaveAfterClose_data();
void multicastLeaveAfterClose();
void setMulticastInterface_data();
void setMulticastInterface();
void multicast_data();
void multicast();
void echo_data();
void echo();
void linkLocalIPv6();
void linkLocalIPv4();
void readyRead();
void readyReadForEmptyDatagram();
void asyncReadDatagram();
void writeInHostLookupState();
protected slots:
void empty_readyReadSlot();
void empty_connectedSlot();
void async_readDatagramSlot();
private:
bool shouldSkipIpv6TestsForBrokenSetsockopt();
bool shouldWorkaroundLinuxKernelBug();
#ifdef SHOULD_CHECK_SYSCALL_SUPPORT
bool ipv6SetsockoptionMissing(int level, int optname);
#endif
QNetworkInterface interfaceForGroup(const QHostAddress &multicastGroup);
bool m_skipUnsupportedIPv6Tests;
bool m_workaroundLinuxKernelBug;
QList<QHostAddress> allAddresses;
QHostAddress multicastGroup4, multicastGroup6;
QList<QHostAddress> linklocalMulticastGroups;
QUdpSocket *m_asyncSender;
QUdpSocket *m_asyncReceiver;
};
#ifdef SHOULD_CHECK_SYSCALL_SUPPORT
bool tst_QUdpSocket::ipv6SetsockoptionMissing(int level, int optname)
{
int testSocket;
testSocket = socket(PF_INET6, SOCK_DGRAM, 0);
// If we can't test here, assume it's not missing
if (testSocket == -1)
return false;
bool result = false;
if (setsockopt(testSocket, level, optname, nullptr, 0) == -1)
if (errno == ENOPROTOOPT)
result = true;
close(testSocket);
return result;
}
#endif //SHOULD_CHECK_SYSCALL_SUPPORT
bool tst_QUdpSocket::shouldSkipIpv6TestsForBrokenSetsockopt()
{
#ifdef SHOULD_CHECK_SYSCALL_SUPPORT
// Following parameters for setsockopt are not supported by all QEMU versions:
if (ipv6SetsockoptionMissing(SOL_IPV6, IPV6_JOIN_GROUP)
|| ipv6SetsockoptionMissing(SOL_IPV6, IPV6_MULTICAST_HOPS)
|| ipv6SetsockoptionMissing(SOL_IPV6, IPV6_MULTICAST_IF)
|| ipv6SetsockoptionMissing(SOL_IPV6, IPV6_MULTICAST_LOOP)
|| ipv6SetsockoptionMissing(SOL_IPV6, IPV6_RECVHOPLIMIT)) {
return true;
}
#endif //SHOULD_CHECK_SYSCALL_SUPPORT
return false;
}
QNetworkInterface tst_QUdpSocket::interfaceForGroup(const QHostAddress &multicastGroup)
{
if (multicastGroup.protocol() == QAbstractSocket::IPv4Protocol)
return QNetworkInterface();
QString scope = multicastGroup.scopeId();
if (!scope.isEmpty())
return QNetworkInterface::interfaceFromName(scope);
static QNetworkInterface ipv6if = [&]() {
// find any link local address in the allAddress list
for (const QHostAddress &addr: std::as_const(allAddresses)) {
if (addr.isLoopback())
continue;
QString scope = addr.scopeId();
if (!scope.isEmpty()) {
QNetworkInterface iface = QNetworkInterface::interfaceFromName(scope);
qDebug() << "Will bind IPv6 sockets to" << iface;
return iface;
}
}
qWarning("interfaceForGroup(%s) could not find any link-local IPv6 address! "
"Make sure this test is behind a check of QtNetworkSettings::hasIPv6().",
qUtf8Printable(multicastGroup.toString()));
return QNetworkInterface();
}();
return ipv6if;
}
bool tst_QUdpSocket::shouldWorkaroundLinuxKernelBug()
{
#ifdef Q_OS_LINUX
const QVersionNumber version = QVersionNumber::fromString(QSysInfo::kernelVersion());
return version.majorVersion() == 4 && version.minorVersion() >= 6 && version.minorVersion() < 13;
#else
return false;
#endif
}
static QHostAddress makeNonAny(const QHostAddress &address, QHostAddress::SpecialAddress preferForAny = QHostAddress::LocalHost)
{
if (address == QHostAddress::Any)
return preferForAny;
if (address == QHostAddress::AnyIPv4)
return QHostAddress::LocalHost;
if (address == QHostAddress::AnyIPv6)
return QHostAddress::LocalHostIPv6;
return address;
}
void tst_QUdpSocket::initTestCase_data()
{
// hack: we only enable the Socks5 over UDP tests on the old
// test server, because they fail on the new one. See QTBUG-35490
bool newTestServer = true;
#ifndef QT_TEST_SERVER
QTcpSocket socket;
socket.connectToHost(QtNetworkSettings::serverName(), 22);
if (socket.waitForConnected(10000)) {
socket.waitForReadyRead(5000);
QByteArray ba = socket.readAll();
if (ba.startsWith("SSH-2.0-OpenSSH_5.8p1"))
newTestServer = false;
socket.disconnectFromHost();
}
#endif
QTest::addColumn<bool>("setProxy");
QTest::addColumn<int>("proxyType");
QTest::newRow("WithoutProxy") << false << 0;
#if QT_CONFIG(socks5)
if (!newTestServer)
QTest::newRow("WithSocks5Proxy") << true << int(QNetworkProxy::Socks5Proxy);
#endif
}
void tst_QUdpSocket::initTestCase()
{
#ifdef QT_TEST_SERVER
QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::socksProxyServerName(), 1080));
QVERIFY(QtNetworkSettings::verifyConnection(QtNetworkSettings::echoServerName(), 7));
#else
if (!QtNetworkSettings::verifyTestNetworkSettings())
QSKIP("No network test server available");
#endif
allAddresses = QNetworkInterface::allAddresses();
m_skipUnsupportedIPv6Tests = shouldSkipIpv6TestsForBrokenSetsockopt();
// Create a pair of random multicast groups so we avoid clashing with any
// other tst_qudpsocket running on the same network at the same time.
quint64 r[2] = {
// ff14:: is temporary, not prefix-based, admin-local
qToBigEndian(Q_UINT64_C(0xff14) << 48),
QRandomGenerator64::global()->generate64()
};
multicastGroup6.setAddress(*reinterpret_cast<Q_IPV6ADDR *>(&r));
// 239.0.0.0/8 is "Organization-Local Scope"
multicastGroup4.setAddress((239U << 24) | (r[1] & 0xffffff));
// figure out some link-local IPv6 multicast groups
// ff12:: is temporary, not prefix-based, link-local
r[0] = qToBigEndian(Q_UINT64_C(0xff12) << 48);
QHostAddress llbase(*reinterpret_cast<Q_IPV6ADDR *>(&r));
for (const QHostAddress &a : std::as_const(allAddresses)) {
QString scope = a.scopeId();
if (scope.isEmpty())
continue;
llbase.setScopeId(scope);
linklocalMulticastGroups << llbase;
}
qDebug() << "Will use multicast groups" << multicastGroup4 << multicastGroup6 << linklocalMulticastGroups;
m_workaroundLinuxKernelBug = shouldWorkaroundLinuxKernelBug();
if (QTestPrivate::isRunningArmOnX86())
QSKIP("This test is unreliable due to QEMU emulation shortcomings.");
}
void tst_QUdpSocket::init()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy) {
#if QT_CONFIG(socks5)
QFETCH_GLOBAL(int, proxyType);
if (proxyType == QNetworkProxy::Socks5Proxy) {
QNetworkProxy::setApplicationProxy(QNetworkProxy(QNetworkProxy::Socks5Proxy, QtNetworkSettings::socksProxyServerName(), 1080));
}
#else
QSKIP("No proxy support");
#endif // QT_CONFIG(socks5)
}
}
void tst_QUdpSocket::cleanup()
{
#ifndef QT_NO_NETWORKPROXY
QNetworkProxy::setApplicationProxy(QNetworkProxy::DefaultProxy);
#endif // !QT_NO_NETWORKPROXY
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::constructing()
{
QUdpSocket socket;
QVERIFY(socket.isSequential());
QVERIFY(!socket.isOpen());
QCOMPARE(socket.socketType(), QUdpSocket::UdpSocket);
QCOMPARE((int) socket.bytesAvailable(), 0);
QCOMPARE(socket.canReadLine(), false);
QCOMPARE(socket.readLine(), QByteArray());
QCOMPARE(socket.socketDescriptor(), (qintptr)-1);
QCOMPARE(socket.error(), QUdpSocket::UnknownSocketError);
QCOMPARE(socket.errorString(), QString("Unknown error"));
// Check the state of the socket api
}
void tst_QUdpSocket::unconnectedServerAndClientTest()
{
QUdpSocket serverSocket;
qRegisterMetaType<QAbstractSocket::SocketState>("QAbstractSocket::SocketState");
QSignalSpy stateChangedSpy(&serverSocket, SIGNAL(stateChanged(QAbstractSocket::SocketState)));
QVERIFY2(serverSocket.bind(), serverSocket.errorString().toLatin1().constData());
QCOMPARE(stateChangedSpy.size(), 1);
const char *message[] = {"Yo mista", "Yo", "Wassap"};
QHostAddress serverAddress = makeNonAny(serverSocket.localAddress());
for (int i = 0; i < 3; ++i) {
QUdpSocket clientSocket;
QCOMPARE(int(clientSocket.writeDatagram(message[i], strlen(message[i]),
serverAddress, serverSocket.localPort())),
int(strlen(message[i])));
char buf[1024];
QHostAddress host;
quint16 port;
QVERIFY2(serverSocket.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(serverSocket).constData());
QCOMPARE(int(serverSocket.readDatagram(buf, sizeof(buf), &host, &port)),
int(strlen(message[i])));
buf[strlen(message[i])] = '\0';
QCOMPARE(QByteArray(buf), QByteArray(message[i]));
QCOMPARE(port, clientSocket.localPort());
if (host.toIPv4Address()) // in case the sender is IPv4 mapped in IPv6
QCOMPARE(host.toIPv4Address(), makeNonAny(clientSocket.localAddress()).toIPv4Address());
else
QCOMPARE(host, makeNonAny(clientSocket.localAddress()));
}
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::broadcasting()
{
if (m_workaroundLinuxKernelBug)
QSKIP("This test can fail due to linux kernel bug");
QFETCH_GLOBAL(bool, setProxy);
if (setProxy) {
#ifndef QT_NO_NETWORKPROXY
QFETCH_GLOBAL(int, proxyType);
if (proxyType == QNetworkProxy::Socks5Proxy)
QSKIP("With socks5 Broadcast is not supported.");
#else // !QT_NO_NETWORKPROXY
QSKIP("No proxy support");
#endif // QT_NO_NETWORKPROXY
}
#ifdef Q_OS_AIX
QSKIP("Broadcast does not work on darko");
#endif
const char *message[] = {"Yo mista", "", "Yo", "Wassap"};
QList<QHostAddress> broadcastAddresses;
foreach (QNetworkInterface iface, QNetworkInterface::allInterfaces()) {
if ((iface.flags() & QNetworkInterface::CanBroadcast)
&& iface.flags() & QNetworkInterface::IsUp) {
for (int i=0;i<iface.addressEntries().size();i++) {
QHostAddress broadcast = iface.addressEntries().at(i).broadcast();
if (broadcast.protocol() == QAbstractSocket::IPv4Protocol)
broadcastAddresses.append(broadcast);
}
}
}
if (broadcastAddresses.isEmpty())
QSKIP("No interface can broadcast");
for (int i = 0; i < 4; ++i) {
QUdpSocket serverSocket;
QVERIFY2(serverSocket.bind(QHostAddress(QHostAddress::AnyIPv4), 0), serverSocket.errorString().toLatin1().constData());
quint16 serverPort = serverSocket.localPort();
QCOMPARE(serverSocket.state(), QUdpSocket::BoundState);
connect(&serverSocket, SIGNAL(readyRead()), SLOT(empty_readyReadSlot()));
QUdpSocket broadcastSocket;
broadcastSocket.bind(QHostAddress(QHostAddress::AnyIPv4), 0);
for (int j = 0; j < 10; ++j) {
for (int k = 0; k < 4; k++) {
broadcastSocket.writeDatagram(message[i], strlen(message[i]),
QHostAddress::Broadcast, serverPort);
foreach (QHostAddress addr, broadcastAddresses)
broadcastSocket.writeDatagram(message[i], strlen(message[i]), addr, serverPort);
}
QTestEventLoop::instance().enterLoop(15);
if (QTestEventLoop::instance().timeout()) {
#if defined(Q_OS_FREEBSD)
QEXPECT_FAIL("",
"Broadcasting to 255.255.255.255 does not work on FreeBSD",
Abort);
#endif
QFAIL("Network operation timed out");
}
QVERIFY(serverSocket.hasPendingDatagrams());
do {
const int messageLength = int(strlen(message[i]));
QNetworkDatagram dgram = serverSocket.receiveDatagram();
QVERIFY(dgram.isValid());
QByteArray arr = dgram.data();
QCOMPARE(arr.size(), messageLength);
arr.resize(messageLength);
QCOMPARE(arr, QByteArray(message[i]));
if (dgram.senderAddress().toIPv4Address()) // in case it's a v6-mapped address
QVERIFY2(allAddresses.contains(QHostAddress(dgram.senderAddress().toIPv4Address())),
dgram.senderAddress().toString().toLatin1());
else if (!dgram.senderAddress().isNull())
QVERIFY2(allAddresses.contains(dgram.senderAddress()),
dgram.senderAddress().toString().toLatin1());
QCOMPARE(dgram.senderPort(), int(broadcastSocket.localPort()));
if (!dgram.destinationAddress().isNull()) {
QVERIFY2(dgram.destinationAddress() == QHostAddress::Broadcast
|| broadcastAddresses.contains(dgram.destinationAddress()),
dgram.destinationAddress().toString().toLatin1());
QCOMPARE(dgram.destinationPort(), int(serverSocket.localPort()));
}
int ttl = dgram.hopLimit();
if (ttl != -1)
QVERIFY(ttl != 0);
} while (serverSocket.hasPendingDatagrams());
}
}
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::loop_data()
{
QTest::addColumn<QByteArray>("peterMessage");
QTest::addColumn<QByteArray>("paulMessage");
QTest::addColumn<bool>("success");
QTest::newRow("\"Almond!\" | \"Joy!\"") << QByteArray("Almond!") << QByteArray("Joy!") << true;
QTest::newRow("\"A\" | \"B\"") << QByteArray("A") << QByteArray("B") << true;
QTest::newRow("\"AB\" | \"B\"") << QByteArray("AB") << QByteArray("B") << true;
QTest::newRow("\"AB\" | \"BB\"") << QByteArray("AB") << QByteArray("BB") << true;
QTest::newRow("\"A\\0B\" | \"B\\0B\"") << QByteArray::fromRawData("A\0B", 3) << QByteArray::fromRawData("B\0B", 3) << true;
QTest::newRow("\"(nil)\" | \"(nil)\"") << QByteArray() << QByteArray() << true;
QTest::newRow("Bigmessage") << QByteArray(600, '@') << QByteArray(600, '@') << true;
}
void tst_QUdpSocket::loop()
{
QFETCH(QByteArray, peterMessage);
QFETCH(QByteArray, paulMessage);
QFETCH(bool, success);
QUdpSocket peter;
QUdpSocket paul;
// make sure we bind to IPv4
QHostAddress localhost = QHostAddress::LocalHost;
QVERIFY2(peter.bind(localhost), peter.errorString().toLatin1().constData());
QVERIFY2(paul.bind(localhost), paul.errorString().toLatin1().constData());
QHostAddress peterAddress = makeNonAny(peter.localAddress());
QHostAddress paulAddress = makeNonAny(paul.localAddress());
QCOMPARE(peter.writeDatagram(peterMessage.data(), peterMessage.size(),
paulAddress, paul.localPort()), qint64(peterMessage.size()));
QCOMPARE(paul.writeDatagram(paulMessage.data(), paulMessage.size(),
peterAddress, peter.localPort()), qint64(paulMessage.size()));
QVERIFY2(peter.waitForReadyRead(9000), QtNetworkSettings::msgSocketError(peter).constData());
QVERIFY2(paul.waitForReadyRead(9000), QtNetworkSettings::msgSocketError(paul).constData());
QNetworkDatagram peterDatagram = peter.receiveDatagram(paulMessage.size() * 2);
QNetworkDatagram paulDatagram = paul.receiveDatagram(peterMessage.size() * 2);
if (success) {
QCOMPARE(peterDatagram.data().size(), qint64(paulMessage.size()));
QCOMPARE(paulDatagram.data().size(), qint64(peterMessage.size()));
} else {
// this code path seems to never be executed
QVERIFY(peterDatagram.data().size() != paulMessage.size());
QVERIFY(paulDatagram.data().size() != peterMessage.size());
}
QCOMPARE(peterDatagram.data().left(paulMessage.size()), paulMessage);
QCOMPARE(paulDatagram.data().left(peterMessage.size()), peterMessage);
QCOMPARE(peterDatagram.senderAddress(), paulAddress);
QCOMPARE(paulDatagram.senderAddress(), peterAddress);
QCOMPARE(paulDatagram.senderPort(), int(peter.localPort()));
QCOMPARE(peterDatagram.senderPort(), int(paul.localPort()));
// Unlike for IPv6 with IPV6_PKTINFO, IPv4 has no standardized way of
// obtaining the packet's destination addresses. The destinationAddress and
// destinationPort calls could fail, so whitelist the OSes for which we
// know we have an implementation.
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4) || defined(Q_OS_WIN)
QVERIFY(peterDatagram.destinationPort() != -1);
QVERIFY(paulDatagram.destinationPort() != -1);
#endif
if (peterDatagram.destinationPort() == -1) {
QCOMPARE(peterDatagram.destinationAddress().protocol(), QAbstractSocket::UnknownNetworkLayerProtocol);
QCOMPARE(paulDatagram.destinationAddress().protocol(), QAbstractSocket::UnknownNetworkLayerProtocol);
} else {
QCOMPARE(peterDatagram.destinationAddress(), makeNonAny(peter.localAddress()));
QCOMPARE(paulDatagram.destinationAddress(), makeNonAny(paul.localAddress()));
QVERIFY(peterDatagram.destinationAddress().isEqual(makeNonAny(peter.localAddress())));
QVERIFY(paulDatagram.destinationAddress().isEqual(makeNonAny(paul.localAddress())));
}
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::ipv6Loop_data()
{
loop_data();
}
void tst_QUdpSocket::ipv6Loop()
{
QFETCH(QByteArray, peterMessage);
QFETCH(QByteArray, paulMessage);
QFETCH(bool, success);
QUdpSocket peter;
QUdpSocket paul;
int peterPort;
int paulPort;
if (!peter.bind(QHostAddress(QHostAddress::LocalHostIPv6), 0)) {
QCOMPARE(peter.error(), QUdpSocket::UnsupportedSocketOperationError);
return;
}
QVERIFY(paul.bind(QHostAddress(QHostAddress::LocalHostIPv6), 0));
QHostAddress peterAddress = makeNonAny(peter.localAddress());
QHostAddress paulAddress = makeNonAny(paul.localAddress());
peterPort = peter.localPort();
paulPort = paul.localPort();
QCOMPARE(peter.writeDatagram(peterMessage.data(), peterMessage.size(), QHostAddress("::1"),
paulPort), qint64(peterMessage.size()));
QCOMPARE(paul.writeDatagram(paulMessage.data(), paulMessage.size(),
QHostAddress("::1"), peterPort), qint64(paulMessage.size()));
QVERIFY(peter.waitForReadyRead(5000));
QVERIFY(paul.waitForReadyRead(5000));
QNetworkDatagram peterDatagram = peter.receiveDatagram(paulMessage.size() * 2);
QNetworkDatagram paulDatagram = paul.receiveDatagram(peterMessage.size() * 2);
if (success) {
QCOMPARE(peterDatagram.data().size(), qint64(paulMessage.size()));
QCOMPARE(paulDatagram.data().size(), qint64(peterMessage.size()));
} else {
// this code path seems to never be executed
QVERIFY(peterDatagram.data().size() != paulMessage.size());
QVERIFY(paulDatagram.data().size() != peterMessage.size());
}
QCOMPARE(peterDatagram.data().left(paulMessage.size()), paulMessage);
QCOMPARE(paulDatagram.data().left(peterMessage.size()), peterMessage);
QCOMPARE(peterDatagram.senderAddress(), paulAddress);
QCOMPARE(paulDatagram.senderAddress(), peterAddress);
QCOMPARE(paulDatagram.senderPort(), peterPort);
QCOMPARE(peterDatagram.senderPort(), paulPort);
// For IPv6, IPV6_PKTINFO is a mandatory feature (RFC 3542).
QCOMPARE(peterDatagram.destinationAddress(), makeNonAny(peter.localAddress()));
QCOMPARE(paulDatagram.destinationAddress(), makeNonAny(paul.localAddress()));
QCOMPARE(peterDatagram.destinationPort(), peterPort);
QCOMPARE(paulDatagram.destinationPort(), paulPort);
}
void tst_QUdpSocket::dualStack()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
QSKIP("test server SOCKS proxy doesn't support IPv6");
QUdpSocket dualSock;
QByteArray dualData("dual");
QVERIFY(dualSock.bind(QHostAddress(QHostAddress::Any), 0));
QUdpSocket v4Sock;
QByteArray v4Data("v4");
QVERIFY(v4Sock.bind(QHostAddress(QHostAddress::AnyIPv4), 0));
//test v4 -> dual
QCOMPARE((int)v4Sock.writeDatagram(v4Data.constData(), v4Data.size(), QHostAddress(QHostAddress::LocalHost), dualSock.localPort()), v4Data.size());
QVERIFY2(dualSock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(dualSock).constData());
QNetworkDatagram dgram = dualSock.receiveDatagram(100);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.data(), v4Data);
QCOMPARE(dgram.senderPort(), int(v4Sock.localPort()));
// receiving v4 on dual stack will receive as IPv6, so use isEqual()
QVERIFY(dgram.senderAddress().isEqual(makeNonAny(v4Sock.localAddress(), QHostAddress::Null)));
if (dualSock.localAddress().protocol() == QAbstractSocket::IPv4Protocol)
QCOMPARE(dgram.senderAddress(), makeNonAny(v4Sock.localAddress(), QHostAddress::Null));
if (dgram.destinationPort() != -1) {
QCOMPARE(dgram.destinationPort(), int(dualSock.localPort()));
QVERIFY(dgram.destinationAddress().isEqual(makeNonAny(dualSock.localAddress(), QHostAddress::LocalHost)));
} else {
qInfo("Getting IPv4 destination address failed.");
}
if (QtNetworkSettings::hasIPv6()) {
QUdpSocket v6Sock;
QByteArray v6Data("v6");
QVERIFY(v6Sock.bind(QHostAddress(QHostAddress::AnyIPv6), 0));
//test v6 -> dual
QCOMPARE((int)v6Sock.writeDatagram(v6Data.constData(), v6Data.size(), QHostAddress(QHostAddress::LocalHostIPv6), dualSock.localPort()), v6Data.size());
QVERIFY2(dualSock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(dualSock).constData());
dgram = dualSock.receiveDatagram(100);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.data(), v6Data);
QCOMPARE(dgram.senderPort(), int(v6Sock.localPort()));
QCOMPARE(dgram.senderAddress(), makeNonAny(v6Sock.localAddress(), QHostAddress::LocalHostIPv6));
QCOMPARE(dgram.destinationPort(), int(dualSock.localPort()));
QCOMPARE(dgram.destinationAddress(), makeNonAny(dualSock.localAddress(), QHostAddress::LocalHostIPv6));
//test dual -> v6
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHostIPv6), v6Sock.localPort()), dualData.size());
QVERIFY2(v6Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v6Sock).constData());
dgram = v6Sock.receiveDatagram(100);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.data(), dualData);
QCOMPARE(dgram.senderPort(), int(dualSock.localPort()));
QCOMPARE(dgram.senderAddress(), makeNonAny(dualSock.localAddress(), QHostAddress::LocalHostIPv6));
QCOMPARE(dgram.destinationPort(), int(v6Sock.localPort()));
QCOMPARE(dgram.destinationAddress(), makeNonAny(v6Sock.localAddress(), QHostAddress::LocalHostIPv6));
}
//test dual -> v4
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHost), v4Sock.localPort()), dualData.size());
QVERIFY2(v4Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v4Sock).constData());
dgram = v4Sock.receiveDatagram(100);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.data(), dualData);
QCOMPARE(dgram.senderPort(), int(dualSock.localPort()));
QCOMPARE(dgram.senderAddress(), makeNonAny(dualSock.localAddress(), QHostAddress::LocalHost));
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4) || defined(Q_OS_WIN)
QVERIFY(dgram.destinationPort() != -1);
#endif
if (dgram.destinationPort() != -1) {
QCOMPARE(dgram.destinationPort(), int(v4Sock.localPort()));
QCOMPARE(dgram.destinationAddress(), makeNonAny(v4Sock.localAddress(), QHostAddress::LocalHost));
}
}
void tst_QUdpSocket::dualStackAutoBinding()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
QSKIP("test server SOCKS proxy doesn't support IPv6");
if (!QtNetworkSettings::hasIPv6())
QSKIP("system doesn't support ipv6!");
QUdpSocket v4Sock;
QVERIFY(v4Sock.bind(QHostAddress(QHostAddress::AnyIPv4), 0));
QUdpSocket v6Sock;
QVERIFY(v6Sock.bind(QHostAddress(QHostAddress::AnyIPv6), 0));
QByteArray dualData("dual");
QHostAddress from;
quint16 port;
QByteArray buffer;
int size;
{
//test an autobound socket can send to both v4 and v6 addresses (v4 first)
QUdpSocket dualSock;
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHost), v4Sock.localPort()), dualData.size());
QVERIFY2(v4Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v4Sock).constData());
buffer.reserve(100);
size = v4Sock.readDatagram(buffer.data(), 100, &from, &port);
QCOMPARE((int)size, dualData.size());
buffer.resize(size);
QCOMPARE(buffer, dualData);
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHostIPv6), v6Sock.localPort()), dualData.size());
QVERIFY2(v6Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v6Sock).constData());
buffer.reserve(100);
size = v6Sock.readDatagram(buffer.data(), 100, &from, &port);
QCOMPARE((int)size, dualData.size());
buffer.resize(size);
QCOMPARE(buffer, dualData);
}
{
//test an autobound socket can send to both v4 and v6 addresses (v6 first)
QUdpSocket dualSock;
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHostIPv6), v6Sock.localPort()), dualData.size());
QVERIFY2(v6Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v6Sock).constData());
buffer.reserve(100);
size = v6Sock.readDatagram(buffer.data(), 100, &from, &port);
QCOMPARE((int)size, dualData.size());
buffer.resize(size);
QCOMPARE(buffer, dualData);
QCOMPARE((int)dualSock.writeDatagram(dualData.constData(), dualData.size(), QHostAddress(QHostAddress::LocalHost), v4Sock.localPort()), dualData.size());
QVERIFY2(v4Sock.waitForReadyRead(5000), QtNetworkSettings::msgSocketError(v4Sock).constData());
buffer.reserve(100);
size = v4Sock.readDatagram(buffer.data(), 100, &from, &port);
QCOMPARE((int)size, dualData.size());
buffer.resize(size);
QCOMPARE(buffer, dualData);
}
}
void tst_QUdpSocket::dualStackNoIPv4onV6only()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
QSKIP("test server SOCKS proxy doesn't support IPv6");
if (!QtNetworkSettings::hasIPv6())
QSKIP("system doesn't support ipv6!");
QUdpSocket v4Sock;
QVERIFY(v4Sock.bind(QHostAddress(QHostAddress::AnyIPv4), 0));
QByteArray v4Data("v4");
QUdpSocket v6Sock;
QVERIFY(v6Sock.bind(QHostAddress(QHostAddress::AnyIPv6), 0));
//test v4 -> v6 (should not be received as this is a v6 only socket)
QCOMPARE((int)v4Sock.writeDatagram(v4Data.constData(), v4Data.size(), QHostAddress(QHostAddress::LocalHost), v6Sock.localPort()), v4Data.size());
QVERIFY(!v6Sock.waitForReadyRead(1000));
}
void tst_QUdpSocket::empty_readyReadSlot()
{
QTestEventLoop::instance().exitLoop();
}
void tst_QUdpSocket::empty_connectedSlot()
{
QTestEventLoop::instance().exitLoop();
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::connectToHost()
{
QUdpSocket socket1;
QUdpSocket socket2;
QVERIFY2(socket1.bind(), socket1.errorString().toLatin1().constData());
socket2.connectToHost(makeNonAny(socket1.localAddress()), socket1.localPort());
QVERIFY(socket2.waitForConnected(5000));
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::bindAndConnectToHost()
{
QUdpSocket socket1;
QUdpSocket socket2;
QUdpSocket dummysocket;
// we use the dummy socket to use up a file descriptor
dummysocket.bind();
QVERIFY2(socket2.bind(), socket2.errorString().toLatin1());
quint16 boundPort = socket2.localPort();
qintptr fd = socket2.socketDescriptor();
QVERIFY2(socket1.bind(), socket1.errorString().toLatin1().constData());
dummysocket.close();
socket2.connectToHost(makeNonAny(socket1.localAddress()), socket1.localPort());
QVERIFY(socket2.waitForConnected(5000));
QCOMPARE(socket2.localPort(), boundPort);
QCOMPARE(socket2.socketDescriptor(), fd);
}
//----------------------------------------------------------------------------------
void tst_QUdpSocket::pendingDatagramSize()
{
if (m_workaroundLinuxKernelBug)
QSKIP("This test can fail due to linux kernel bug");
QUdpSocket server;
QVERIFY2(server.bind(), server.errorString().toLatin1().constData());
QHostAddress serverAddress = makeNonAny(server.localAddress());
QUdpSocket client;
QVERIFY(client.writeDatagram("this is", 7, serverAddress, server.localPort()) == 7);
QVERIFY(client.writeDatagram(0, 0, serverAddress, server.localPort()) == 0);
QVERIFY(client.writeDatagram("3 messages", 10, serverAddress, server.localPort()) == 10);
char c = 0;
QVERIFY2(server.waitForReadyRead(), QtNetworkSettings::msgSocketError(server).constData());
if (server.hasPendingDatagrams()) {
#if defined Q_OS_HPUX && defined __ia64
QEXPECT_FAIL("", "HP-UX 11i v2 can't determine the datagram size correctly.", Abort);
#endif
QCOMPARE(server.pendingDatagramSize(), qint64(7));
c = '\0';
QCOMPARE(server.readDatagram(&c, 1), qint64(1));
QCOMPARE(c, 't');
c = '\0';
} else
QSKIP("does not have the 1st datagram");
if (server.hasPendingDatagrams()) {
QCOMPARE(server.pendingDatagramSize(), qint64(0));
QCOMPARE(server.readDatagram(&c, 1), qint64(0));
QCOMPARE(c, '\0'); // untouched
c = '\0';
} else
QSKIP("does not have the 2nd datagram");
if (server.hasPendingDatagrams()) {
QCOMPARE(server.pendingDatagramSize(), qint64(10));
QCOMPARE(server.readDatagram(&c, 1), qint64(1));
QCOMPARE(c, '3');
} else
QSKIP("does not have the 3rd datagram");
}
void tst_QUdpSocket::writeDatagram()
{
QUdpSocket server;
QVERIFY2(server.bind(), server.errorString().toLatin1().constData());
QHostAddress serverAddress = makeNonAny(server.localAddress());
QUdpSocket client;
qRegisterMetaType<QAbstractSocket::SocketError>("QAbstractSocket::SocketError");
for(int i=0;;i++) {
QSignalSpy errorspy(&client, SIGNAL(errorOccurred(QAbstractSocket::SocketError)));
QSignalSpy bytesspy(&client, SIGNAL(bytesWritten(qint64)));
qint64 written = client.writeDatagram(QByteArray(i * 1024, 'w'), serverAddress,
server.localPort());
if (written != i * 1024) {
#if defined (Q_OS_HPUX)
QSKIP("HP-UX 11.11 on hai (PA-RISC 64) truncates too long datagrams.");
#endif
QCOMPARE(bytesspy.size(), 0);
QCOMPARE(errorspy.size(), 1);
QCOMPARE(*static_cast<const int *>(errorspy.at(0).at(0).constData()),
int(QUdpSocket::DatagramTooLargeError));
QCOMPARE(client.error(), QUdpSocket::DatagramTooLargeError);
break;
}
QCOMPARE(bytesspy.size(), 1);
QCOMPARE(*static_cast<const qint64 *>(bytesspy.at(0).at(0).constData()),
qint64(i * 1024));
QCOMPARE(errorspy.size(), 0);
if (!server.waitForReadyRead(5000))
QSKIP(QString("UDP packet lost at size %1, unable to complete the test.").arg(i * 1024).toLatin1().data());
QCOMPARE(server.pendingDatagramSize(), qint64(i * 1024));
QCOMPARE(server.readDatagram(0, 0), qint64(0));
}
}
void tst_QUdpSocket::performance()
{
QByteArray arr(8192, '@');
QUdpSocket server;
QVERIFY2(server.bind(), server.errorString().toLatin1().constData());
QHostAddress serverAddress = makeNonAny(server.localAddress());
QUdpSocket client;
client.connectToHost(serverAddress, server.localPort());
QVERIFY(client.waitForConnected(10000));
QElapsedTimer stopWatch;
stopWatch.start();
qint64 nbytes = 0;
while (stopWatch.elapsed() < 5000) {
for (int i = 0; i < 100; ++i) {
if (client.write(arr.data(), arr.size()) > 0) {
do {
nbytes += server.readDatagram(arr.data(), arr.size());
} while (server.hasPendingDatagrams());
}
}
}
float secs = stopWatch.elapsed() / 1000.0;
qDebug("\t%.2fMB/%.2fs: %.2fMB/s", float(nbytes / (1024.0*1024.0)),
secs, float(nbytes / (1024.0*1024.0)) / secs);
}
void tst_QUdpSocket::bindMode()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy) {
#ifndef QT_NO_NETWORKPROXY
QFETCH_GLOBAL(int, proxyType);
if (proxyType == QNetworkProxy::Socks5Proxy)
QSKIP("With socks5 explicit port binding is not supported.");
#else // !QT_NO_NETWORKPROXY
QSKIP("No proxy support");
#endif // QT_NO_NETWORKPROXY
}
QUdpSocket socket;
QVERIFY2(socket.bind(), socket.errorString().toLatin1().constData());
QUdpSocket socket2;
QVERIFY(!socket2.bind(socket.localPort()));
#if defined(Q_OS_UNIX)
QVERIFY(!socket2.bind(socket.localPort(), QUdpSocket::ReuseAddressHint));
socket.close();
QVERIFY2(socket.bind(0, QUdpSocket::ShareAddress), socket.errorString().toLatin1().constData());
QVERIFY2(socket2.bind(socket.localPort()), socket2.errorString().toLatin1().constData());
socket2.close();
QVERIFY2(socket2.bind(socket.localPort(), QUdpSocket::ReuseAddressHint), socket2.errorString().toLatin1().constData());
#else
// Depending on the user's privileges, this or will succeed or
// fail. Admins are allowed to reuse the address, but nobody else.
if (!socket2.bind(socket.localPort(), QUdpSocket::ReuseAddressHint)) {
qWarning("Failed to bind with QUdpSocket::ReuseAddressHint(%s), user isn't an administrator?",
qPrintable(socket2.errorString()));
}
socket.close();
QVERIFY2(socket.bind(0, QUdpSocket::ShareAddress), socket.errorString().toLatin1().constData());
QVERIFY(!socket2.bind(socket.localPort()));
socket.close();
QVERIFY2(socket.bind(0, QUdpSocket::DontShareAddress), socket.errorString().toLatin1().constData());
QVERIFY(!socket2.bind(socket.localPort()));
QVERIFY(!socket2.bind(socket.localPort(), QUdpSocket::ReuseAddressHint));
#endif
}
void tst_QUdpSocket::writeDatagramToNonExistingPeer_data()
{
QTest::addColumn<bool>("bind");
QTest::addColumn<QHostAddress>("peerAddress");
QHostAddress localhost(QHostAddress::LocalHost);
QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses());
if (serverAddresses.isEmpty())
return;
QHostAddress remote = serverAddresses.first();
QTest::newRow("localhost-unbound") << false << localhost;
QTest::newRow("localhost-bound") << true << localhost;
QTest::newRow("remote-unbound") << false << remote;
QTest::newRow("remote-bound") << true << remote;
}
void tst_QUdpSocket::writeDatagramToNonExistingPeer()
{
if (QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses().isEmpty())
QFAIL("Could not find test server address");
QFETCH(bool, bind);
QFETCH(QHostAddress, peerAddress);
quint16 peerPort = 33533 + int(bind);
QUdpSocket sUdp;
QSignalSpy sReadyReadSpy(&sUdp, SIGNAL(readyRead()));
if (bind)
QVERIFY(sUdp.bind());
QCOMPARE(sUdp.writeDatagram("", 1, peerAddress, peerPort), qint64(1));
QTestEventLoop::instance().enterLoop(1);
QCOMPARE(sReadyReadSpy.size(), 0);
}
void tst_QUdpSocket::writeToNonExistingPeer_data()
{
QTest::addColumn<QHostAddress>("peerAddress");
QHostAddress localhost(QHostAddress::LocalHost);
QList<QHostAddress> serverAddresses(QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses());
if (serverAddresses.isEmpty())
return;
QHostAddress remote = serverAddresses.first();
// write (required to be connected)
QTest::newRow("localhost") << localhost;
QTest::newRow("remote") << remote;
}
void tst_QUdpSocket::writeToNonExistingPeer()
{
QSKIP("Connected-mode UDP sockets and their behaviour are erratic");
if (QHostInfo::fromName(QtNetworkSettings::socksProxyServerName()).addresses().isEmpty())
QFAIL("Could not find test server address");
QFETCH(QHostAddress, peerAddress);
quint16 peerPort = 34534;
qRegisterMetaType<QAbstractSocket::SocketError>("QAbstractSocket::SocketError");
QUdpSocket sConnected;
QSignalSpy sConnectedReadyReadSpy(&sConnected, SIGNAL(readyRead()));
QSignalSpy sConnectedErrorSpy(&sConnected, SIGNAL(errorOccurred(QAbstractSocket::SocketError)));
sConnected.connectToHost(peerAddress, peerPort, QIODevice::ReadWrite);
QVERIFY(sConnected.waitForConnected(10000));
// the first write succeeds...
QCOMPARE(sConnected.write("", 1), qint64(1));
// the second one should fail!
QTest::qSleep(1000); // do not process events
QCOMPARE(sConnected.write("", 1), qint64(-1));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// the third one will succeed...
QCOMPARE(sConnected.write("", 1), qint64(1));
QTestEventLoop::instance().enterLoop(1);
QCOMPARE(sConnectedReadyReadSpy.size(), 0);
QCOMPARE(sConnectedErrorSpy.size(), 1);
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// we should now get a read error
QCOMPARE(sConnected.write("", 1), qint64(1));
QTest::qSleep(1000); // do not process events
char buf[2];
QVERIFY(!sConnected.hasPendingDatagrams());
QCOMPARE(sConnected.bytesAvailable(), Q_INT64_C(0));
QCOMPARE(sConnected.pendingDatagramSize(), Q_INT64_C(-1));
QCOMPARE(sConnected.readDatagram(buf, 2), Q_INT64_C(-1));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
QCOMPARE(sConnected.write("", 1), qint64(1));
QTest::qSleep(1000); // do not process events
QCOMPARE(sConnected.read(buf, 2), Q_INT64_C(0));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// we should still be connected
QCOMPARE(int(sConnected.state()), int(QUdpSocket::ConnectedState));
}
void tst_QUdpSocket::outOfProcessConnectedClientServerTest()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QProcess serverProcess;
serverProcess.start(QLatin1String("clientserver/clientserver server 1 1"), {},
QIODevice::ReadWrite | QIODevice::Text);
const auto serverProcessCleaner = qScopeGuard([&serverProcess] {
serverProcess.kill();
serverProcess.waitForFinished();
});
if (!serverProcess.waitForStarted(3000))
QSKIP("Failed to start server as a subprocess");
// Wait until the server has started and reports success.
while (!serverProcess.canReadLine()) {
if (!serverProcess.waitForReadyRead(3000))
QSKIP("No output from the server process, bailing out");
}
QByteArray serverGreeting = serverProcess.readLine();
QVERIFY(serverGreeting != QByteArray("XXX\n"));
int serverPort = serverGreeting.trimmed().toInt();
QVERIFY(serverPort > 0 && serverPort < 65536);
QProcess clientProcess;
clientProcess.start(QString::fromLatin1("clientserver/clientserver connectedclient %1 %2")
.arg(QLatin1String("127.0.0.1")).arg(serverPort), {},
QIODevice::ReadWrite | QIODevice::Text);
const auto clientProcessCleaner = qScopeGuard([&clientProcess] {
clientProcess.kill();
clientProcess.waitForFinished();
});
if (!clientProcess.waitForStarted(3000))
QSKIP("Client process did not start");
// Wait until the client has started and reports success.
while (!clientProcess.canReadLine()) {
if (!clientProcess.waitForReadyRead(3000))
QSKIP("No output from the client process, bailing out");
}
QByteArray clientGreeting = clientProcess.readLine();
QCOMPARE(clientGreeting, QByteArray("ok\n"));
// Let the client and server talk for 3 seconds
QTest::qWait(3000);
QStringList serverData = QString::fromLocal8Bit(serverProcess.readAll()).split("\n");
QStringList clientData = QString::fromLocal8Bit(clientProcess.readAll()).split("\n");
QVERIFY(serverData.size() > 5);
QVERIFY(clientData.size() > 5);
for (int i = 0; i < clientData.size() / 2; ++i) {
QCOMPARE(clientData.at(i * 2), QString("readData()"));
QCOMPARE(serverData.at(i * 3), QString("readData()"));
QString cdata = clientData.at(i * 2 + 1);
QString sdata = serverData.at(i * 3 + 1);
QVERIFY(cdata.startsWith(QLatin1String("got ")));
QCOMPARE(cdata.mid(4).trimmed().toInt(), sdata.mid(4).trimmed().toInt() * 2);
QVERIFY(serverData.at(i * 3 + 2).startsWith(QLatin1String("sending ")));
QCOMPARE(serverData.at(i * 3 + 2).trimmed().mid(8).toInt(),
sdata.mid(4).trimmed().toInt() * 2);
}
#endif
}
void tst_QUdpSocket::outOfProcessUnconnectedClientServerTest()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QProcess serverProcess;
serverProcess.start(QLatin1String("clientserver/clientserver server 1 1"), {},
QIODevice::ReadWrite | QIODevice::Text);
const auto serverProcessCleaner = qScopeGuard([&serverProcess] {
serverProcess.kill();
serverProcess.waitForFinished();
});
if (!serverProcess.waitForStarted(3000))
QSKIP("Failed to start the server subprocess");
// Wait until the server has started and reports success.
while (!serverProcess.canReadLine()) {
if (!serverProcess.waitForReadyRead(3000))
QSKIP("No output from the server, probably, it is not running");
}
QByteArray serverGreeting = serverProcess.readLine();
QVERIFY(serverGreeting != QByteArray("XXX\n"));
int serverPort = serverGreeting.trimmed().toInt();
QVERIFY(serverPort > 0 && serverPort < 65536);
QProcess clientProcess;
clientProcess.start(QString::fromLatin1("clientserver/clientserver unconnectedclient %1 %2")
.arg(QLatin1String("127.0.0.1")).arg(serverPort), {},
QIODevice::ReadWrite | QIODevice::Text);
const auto clientProcessCleaner = qScopeGuard([&clientProcess] {
clientProcess.kill();
clientProcess.waitForFinished();
});
if (!clientProcess.waitForStarted(3000))
QSKIP("Failed to start the client's subprocess");
// Wait until the client has started and reports success.
while (!clientProcess.canReadLine()) {
if (!clientProcess.waitForReadyRead(3000))
QSKIP("The client subprocess produced not output, exiting.");
}
QByteArray clientGreeting = clientProcess.readLine();
QCOMPARE(clientGreeting, QByteArray("ok\n"));
// Let the client and server talk for 3 seconds
QTest::qWait(3000);
QStringList serverData = QString::fromLocal8Bit(serverProcess.readAll()).split("\n");
QStringList clientData = QString::fromLocal8Bit(clientProcess.readAll()).split("\n");
QVERIFY(serverData.size() > 5);
QVERIFY(clientData.size() > 5);
for (int i = 0; i < clientData.size() / 2; ++i) {
QCOMPARE(clientData.at(i * 2), QString("readData()"));
QCOMPARE(serverData.at(i * 3), QString("readData()"));
QString cdata = clientData.at(i * 2 + 1);
QString sdata = serverData.at(i * 3 + 1);
QVERIFY(cdata.startsWith(QLatin1String("got ")));
QCOMPARE(cdata.mid(4).trimmed().toInt(), sdata.mid(4).trimmed().toInt() * 2);
QVERIFY(serverData.at(i * 3 + 2).startsWith(QLatin1String("sending ")));
QCOMPARE(serverData.at(i * 3 + 2).trimmed().mid(8).toInt(),
sdata.mid(4).trimmed().toInt() * 2);
}
#endif
}
void tst_QUdpSocket::zeroLengthDatagram()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
QUdpSocket receiver;
QVERIFY(receiver.bind());
QVERIFY(!receiver.waitForReadyRead(100));
QVERIFY(!receiver.hasPendingDatagrams());
QUdpSocket sender;
QCOMPARE(sender.writeDatagram(QNetworkDatagram(QByteArray(), QHostAddress::LocalHost, receiver.localPort())), qint64(0));
QVERIFY2(receiver.waitForReadyRead(1000), QtNetworkSettings::msgSocketError(receiver).constData());
QVERIFY(receiver.hasPendingDatagrams());
char buf;
QCOMPARE(receiver.readDatagram(&buf, 1), qint64(0));
}
void tst_QUdpSocket::multicastTtlOption_data()
{
QTest::addColumn<QHostAddress>("bindAddress");
QTest::addColumn<int>("ttl");
QTest::addColumn<int>("expected");
QList<QHostAddress> addresses;
addresses += QHostAddress(QHostAddress::AnyIPv4);
addresses += QHostAddress(QHostAddress::AnyIPv6);
foreach (const QHostAddress &address, addresses) {
const QByteArray addressB = address.toString().toLatin1();
QTest::newRow((addressB + " 0").constData()) << address << 0 << 0;
QTest::newRow((addressB + " 1").constData()) << address << 1 << 1;
QTest::newRow((addressB + " 2").constData()) << address << 2 << 2;
QTest::newRow((addressB + " 128").constData()) << address << 128 << 128;
QTest::newRow((addressB + " 255").constData()) << address << 255 << 255;
QTest::newRow((addressB + " 1024").constData()) << address << 1024 << 1;
}
}
void tst_QUdpSocket::multicastTtlOption()
{
QFETCH_GLOBAL(bool, setProxy);
QFETCH(QHostAddress, bindAddress);
QFETCH(int, ttl);
QFETCH(int, expected);
if (setProxy) {
// UDP multicast does not work with proxies
expected = 0;
}
// Some syscalls needed for ipv6 udp multicasting are not functional
if (m_skipUnsupportedIPv6Tests) {
if (bindAddress.protocol() == QAbstractSocket::IPv6Protocol) {
QSKIP("Syscalls needed for ipv6 udp multicasting missing functionality");
}
}
QUdpSocket udpSocket;
// bind, but ignore the result, we are only interested in initializing the socket
(void) udpSocket.bind(bindAddress, 0);
udpSocket.setSocketOption(QUdpSocket::MulticastTtlOption, ttl);
QCOMPARE(udpSocket.socketOption(QUdpSocket::MulticastTtlOption).toInt(), expected);
}
void tst_QUdpSocket::multicastLoopbackOption_data()
{
QTest::addColumn<QHostAddress>("bindAddress");
QTest::addColumn<int>("loopback");
QTest::addColumn<int>("expected");
QList<QHostAddress> addresses;
addresses += QHostAddress(QHostAddress::AnyIPv4);
addresses += QHostAddress(QHostAddress::AnyIPv6);
foreach (const QHostAddress &address, addresses) {
const QByteArray addressB = address.toString().toLatin1();
QTest::newRow((addressB + " 0").constData()) << address << 0 << 0;
QTest::newRow((addressB + " 1").constData()) << address << 1 << 1;
QTest::newRow((addressB + " 2").constData()) << address << 2 << 1;
QTest::newRow((addressB + " 0 again").constData()) << address << 0 << 0;
QTest::newRow((addressB + " 2 again").constData()) << address << 2 << 1;
QTest::newRow((addressB + " 0 last time").constData()) << address << 0 << 0;
QTest::newRow((addressB + " 1 again").constData()) << address << 1 << 1;
}
}
void tst_QUdpSocket::multicastLoopbackOption()
{
QFETCH_GLOBAL(bool, setProxy);
QFETCH(QHostAddress, bindAddress);
QFETCH(int, loopback);
QFETCH(int, expected);
if (setProxy) {
// UDP multicast does not work with proxies
expected = 0;
}
// Some syscalls needed for ipv6 udp multicasting are not functional
if (m_skipUnsupportedIPv6Tests) {
if (bindAddress.protocol() == QAbstractSocket::IPv6Protocol) {
QSKIP("Syscalls needed for ipv6 udp multicasting missing functionality");
}
}
QUdpSocket udpSocket;
// bind, but ignore the result, we are only interested in initializing the socket
(void) udpSocket.bind(bindAddress, 0);
udpSocket.setSocketOption(QUdpSocket::MulticastLoopbackOption, loopback);
QCOMPARE(udpSocket.socketOption(QUdpSocket::MulticastLoopbackOption).toInt(), expected);
}
void tst_QUdpSocket::multicastJoinBeforeBind_data()
{
QTest::addColumn<QHostAddress>("groupAddress");
QTest::newRow("valid ipv4 group address") << multicastGroup4;
QTest::newRow("invalid ipv4 group address") << QHostAddress(QHostAddress::Broadcast);
QTest::newRow("valid ipv6 group address") << multicastGroup6;
for (const QHostAddress &a : std::as_const(linklocalMulticastGroups))
QTest::addRow("valid ipv6 %s-link group address", a.scopeId().toLatin1().constData()) << a;
QTest::newRow("invalid ipv6 group address") << QHostAddress(QHostAddress::AnyIPv6);
}
void tst_QUdpSocket::multicastJoinBeforeBind()
{
QFETCH(QHostAddress, groupAddress);
QUdpSocket udpSocket;
// cannot join group before binding
QTest::ignoreMessage(QtWarningMsg, "QUdpSocket::joinMulticastGroup() called on a QUdpSocket when not in QUdpSocket::BoundState");
QVERIFY(!udpSocket.joinMulticastGroup(groupAddress));
}
void tst_QUdpSocket::multicastLeaveAfterClose_data()
{
QTest::addColumn<QHostAddress>("groupAddress");
QTest::newRow("ipv4") << multicastGroup4;
QTest::newRow("ipv6") << multicastGroup6;
for (const QHostAddress &a : std::as_const(linklocalMulticastGroups))
QTest::addRow("ipv6-link-%s", a.scopeId().toLatin1().constData()) << a;
}
void tst_QUdpSocket::multicastLeaveAfterClose()
{
QFETCH_GLOBAL(bool, setProxy);
QFETCH(QHostAddress, groupAddress);
if (setProxy)
QSKIP("UDP Multicast does not work with proxies");
if (!QtNetworkSettings::hasIPv6() && groupAddress.protocol() == QAbstractSocket::IPv6Protocol)
QSKIP("system doesn't support ipv6!");
// Some syscalls needed for ipv6 udp multicasting are not functional
if (m_skipUnsupportedIPv6Tests) {
if (groupAddress.protocol() == QAbstractSocket::IPv6Protocol) {
QSKIP("Syscalls needed for ipv6 udp multicasting missing functionality");
}
}
QUdpSocket udpSocket;
QHostAddress bindAddress = QHostAddress::AnyIPv4;
if (groupAddress.protocol() == QAbstractSocket::IPv6Protocol)
bindAddress = QHostAddress::AnyIPv6;
QVERIFY2(udpSocket.bind(bindAddress, 0),
qPrintable(udpSocket.errorString()));
QVERIFY2(udpSocket.joinMulticastGroup(groupAddress, interfaceForGroup(groupAddress)),
qPrintable(udpSocket.errorString()));
udpSocket.close();
QTest::ignoreMessage(QtWarningMsg, "QUdpSocket::leaveMulticastGroup() called on a QUdpSocket when not in QUdpSocket::BoundState");
QVERIFY(!udpSocket.leaveMulticastGroup(groupAddress));
}
void tst_QUdpSocket::setMulticastInterface_data()
{
QTest::addColumn<QNetworkInterface>("iface");
QTest::addColumn<QHostAddress>("address");
QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
foreach (const QNetworkInterface &iface, interfaces) {
if ((iface.flags() & QNetworkInterface::IsUp) == 0)
continue;
foreach (const QNetworkAddressEntry &entry, iface.addressEntries()) {
const QByteArray testName = iface.name().toLatin1() + ':' + entry.ip().toString().toLatin1();
QTest::newRow(testName.constData()) << iface << entry.ip();
}
}
}
void tst_QUdpSocket::setMulticastInterface()
{
QFETCH_GLOBAL(bool, setProxy);
QFETCH(QNetworkInterface, iface);
QFETCH(QHostAddress, address);
// Some syscalls needed for udp multicasting are not functional
if (m_skipUnsupportedIPv6Tests) {
QSKIP("Syscalls needed for udp multicasting missing functionality");
}
QUdpSocket udpSocket;
// bind initializes the socket
bool bound = udpSocket.bind((address.protocol() == QAbstractSocket::IPv6Protocol
? QHostAddress(QHostAddress::AnyIPv6)
: QHostAddress(QHostAddress::AnyIPv4)),
0);
if (!bound)
QTest::ignoreMessage(QtWarningMsg, "QUdpSocket::setMulticastInterface() called on a QUdpSocket when not in QUdpSocket::BoundState");
udpSocket.setMulticastInterface(iface);
if (!bound)
QTest::ignoreMessage(QtWarningMsg, "QUdpSocket::multicastInterface() called on a QUdpSocket when not in QUdpSocket::BoundState");
QNetworkInterface iface2 = udpSocket.multicastInterface();
if (!setProxy) {
QVERIFY(iface2.isValid());
QCOMPARE(iface.name(), iface2.name());
} else {
QVERIFY(!iface2.isValid());
}
}
void tst_QUdpSocket::multicast_data()
{
QHostAddress anyAddress = QHostAddress(QHostAddress::AnyIPv4);
QHostAddress groupAddress = multicastGroup4;
QHostAddress any6Address = QHostAddress(QHostAddress::AnyIPv6);
QHostAddress group6Address = multicastGroup6;
QHostAddress dualAddress = QHostAddress(QHostAddress::Any);
QTest::addColumn<QHostAddress>("bindAddress");
QTest::addColumn<bool>("bindResult");
QTest::addColumn<QHostAddress>("groupAddress");
QTest::addColumn<bool>("joinResult");
QTest::newRow("valid bind, group ipv4 address") << anyAddress << true << groupAddress << true;
QTest::newRow("valid bind, invalid group ipv4 address") << anyAddress << true << anyAddress << false;
QTest::newRow("valid bind, group ipv6 address") << any6Address << true << group6Address << true;
for (const QHostAddress &a : std::as_const(linklocalMulticastGroups))
QTest::addRow("valid bind, %s-link group ipv6 address", a.scopeId().toLatin1().constData())
<< any6Address << true << a << true;
QTest::newRow("valid bind, invalid group ipv6 address") << any6Address << true << any6Address << false;
QTest::newRow("dual bind, group ipv4 address") << dualAddress << true << groupAddress << false;
QTest::newRow("dual bind, group ipv6 address") << dualAddress << true << group6Address << true;
for (const QHostAddress &a : std::as_const(linklocalMulticastGroups))
QTest::addRow("dual bind, %s-link group ipv6 address", a.scopeId().toLatin1().constData())
<< dualAddress << true << a << true;
}
void tst_QUdpSocket::multicast()
{
QFETCH_GLOBAL(bool, setProxy);
QFETCH(QHostAddress, bindAddress);
QFETCH(bool, bindResult);
QFETCH(QHostAddress, groupAddress);
QFETCH(bool, joinResult);
if (groupAddress.protocol() == QAbstractSocket::IPv6Protocol && !QtNetworkSettings::hasIPv6())
QSKIP("system doesn't support ipv6!");
if (setProxy) {
// UDP multicast does not work with proxies
return;
}
// Some syscalls needed for ipv6 udp multicasting are not functional
if (m_skipUnsupportedIPv6Tests) {
if (groupAddress.protocol() == QAbstractSocket::IPv6Protocol) {
QSKIP("Syscalls needed for ipv6 udp multicasting missing functionality");
}
}
QUdpSocket receiver;
// bind first, then verify that we can join the multicast group
QVERIFY2(receiver.bind(bindAddress, 0) == bindResult,
qPrintable(receiver.errorString()));
if (!bindResult)
return;
if (bindAddress == QHostAddress::Any && groupAddress.protocol() == QAbstractSocket::IPv4Protocol) {
QCOMPARE(joinResult, false);
QTest::ignoreMessage(QtWarningMsg,
"QAbstractSocket: cannot bind to QHostAddress::Any (or an IPv6 address) and join an IPv4 multicast group;"
" bind to QHostAddress::AnyIPv4 instead if you want to do this");
}
QVERIFY2(receiver.joinMulticastGroup(groupAddress, interfaceForGroup(groupAddress)) == joinResult,
qPrintable(receiver.errorString()));
if (!joinResult)
return;
QList<QByteArray> datagrams = QList<QByteArray>()
<< QByteArray("0123")
<< QByteArray("4567")
<< QByteArray("89ab")
<< QByteArray("cdef");
QUdpSocket sender;
sender.bind();
foreach (const QByteArray &datagram, datagrams) {
QNetworkDatagram dgram(datagram, groupAddress, receiver.localPort());
dgram.setInterfaceIndex(interfaceForGroup(groupAddress).index());
QCOMPARE(int(sender.writeDatagram(dgram)),
int(datagram.size()));
}
QVERIFY2(receiver.waitForReadyRead(), QtNetworkSettings::msgSocketError(receiver).constData());
QVERIFY(receiver.hasPendingDatagrams());
QList<QByteArray> receivedDatagrams;
while (receiver.hasPendingDatagrams()) {
QNetworkDatagram dgram = receiver.receiveDatagram();
receivedDatagrams << dgram.data();
QVERIFY2(allAddresses.contains(dgram.senderAddress()),
dgram.senderAddress().toString().toLatin1());
QCOMPARE(dgram.senderPort(), int(sender.localPort()));
if (!dgram.destinationAddress().isNull()) {
QCOMPARE(dgram.destinationAddress(), groupAddress);
QCOMPARE(dgram.destinationPort(), int(receiver.localPort()));
}
int ttl = dgram.hopLimit();
if (ttl != -1)
QVERIFY(ttl != 0);
}
QCOMPARE(receivedDatagrams, datagrams);
QVERIFY2(receiver.leaveMulticastGroup(groupAddress, interfaceForGroup(groupAddress)),
qPrintable(receiver.errorString()));
}
void tst_QUdpSocket::echo_data()
{
QTest::addColumn<bool>("connect");
QTest::newRow("writeDatagram") << false;
QTest::newRow("write") << true;
}
void tst_QUdpSocket::echo()
{
QFETCH(bool, connect);
QHostInfo info = QHostInfo::fromName(QtNetworkSettings::echoServerName());
QVERIFY(info.addresses().size());
QHostAddress remote = info.addresses().first();
QUdpSocket sock;
if (connect) {
sock.connectToHost(remote, 7);
QVERIFY(sock.waitForConnected(10000));
} else {
sock.bind();
}
QByteArray out(30, 'x');
QByteArray in;
int successes = 0;
for (int i=0;i<10;i++) {
if (connect) {
sock.write(out);
} else {
sock.writeDatagram(out, remote, 7);
}
if (sock.waitForReadyRead(1000)) {
while (sock.hasPendingDatagrams()) {
QHostAddress from;
quint16 port;
if (connect) {
in = sock.read(sock.pendingDatagramSize());
} else {
in.resize(sock.pendingDatagramSize());
sock.readDatagram(in.data(), in.size(), &from, &port);
}
if (in==out)
successes++;
}
}
if (!sock.isValid())
QFAIL(sock.errorString().toLatin1().constData());
qDebug() << "packets in" << successes << "out" << i;
QTest::qWait(50); //choke to avoid triggering flood/DDoS protections on echo service
}
QVERIFY2(successes >= 9, QByteArray::number(successes).constData());
}
void tst_QUdpSocket::linkLocalIPv6()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
QList <QHostAddress> addresses;
QSet <QString> scopes;
QHostAddress localMask("fe80::");
foreach (const QNetworkInterface& iface, QNetworkInterface::allInterfaces()) {
//Windows preallocates link local addresses to interfaces that are down.
//These may or may not work depending on network driver
if (iface.flags() & QNetworkInterface::IsUp) {
#if defined(Q_OS_WIN)
// Do not add the Teredo Tunneling Pseudo Interface on Windows.
if (iface.humanReadableName().contains("Teredo"))
continue;
#elif defined(Q_OS_DARWIN)
// Do not add "utun" interfaces on macOS: nothing ever gets received
// (we don't know why)
if (iface.name().startsWith("utun"))
continue;
#endif
foreach (QNetworkAddressEntry addressEntry, iface.addressEntries()) {
QHostAddress addr(addressEntry.ip());
if (!addr.scopeId().isEmpty() && addr.isInSubnet(localMask, 64)) {
scopes << addr.scopeId();
addresses << addr;
qDebug() << addr;
}
}
}
}
if (addresses.isEmpty())
QSKIP("No IPv6 link local addresses");
QList <QUdpSocket*> sockets;
quint16 port = 0;
foreach (const QHostAddress& addr, addresses) {
QUdpSocket *s = new QUdpSocket;
QVERIFY2(s->bind(addr, port), addr.toString().toLatin1()
+ '/' + QByteArray::number(port) + ": " + qPrintable(s->errorString()));
port = s->localPort(); //bind same port, different networks
sockets << s;
}
QByteArray testData("hello");
foreach (QUdpSocket *s, sockets) {
QUdpSocket neutral;
QVERIFY(neutral.bind(QHostAddress(QHostAddress::AnyIPv6)));
QSignalSpy neutralReadSpy(&neutral, SIGNAL(readyRead()));
QSignalSpy spy(s, SIGNAL(readyRead()));
QVERIFY(s->writeDatagram(testData, s->localAddress(), neutral.localPort()));
QTRY_VERIFY(neutralReadSpy.size() > 0); //note may need to accept a firewall prompt
QNetworkDatagram dgram = neutral.receiveDatagram(testData.size() * 2);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.senderAddress(), s->localAddress());
QCOMPARE(dgram.senderPort(), int(s->localPort()));
QCOMPARE(dgram.destinationAddress(), s->localAddress());
QCOMPARE(dgram.destinationPort(), int(neutral.localPort()));
QCOMPARE(dgram.data().size(), testData.size());
QCOMPARE(dgram.data(), testData);
QVERIFY(neutral.writeDatagram(dgram.makeReply(testData)));
QTRY_VERIFY(spy.size() > 0); //note may need to accept a firewall prompt
dgram = s->receiveDatagram(testData.size() * 2);
QCOMPARE(dgram.data(), testData);
//sockets bound to other interfaces shouldn't have received anything
foreach (QUdpSocket *s2, sockets) {
QCOMPARE((int)s2->bytesAvailable(), 0);
}
//Sending to the same address with different scope should normally fail
//However it will pass if there is a route between two interfaces,
//e.g. connected to a home/office network via wired and wireless interfaces
//which is a reasonably common case.
//So this is not auto tested.
}
qDeleteAll(sockets);
}
void tst_QUdpSocket::linkLocalIPv4()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
QList <QHostAddress> addresses;
QHostAddress localMask("169.254.0.0");
foreach (const QNetworkInterface& iface, QNetworkInterface::allInterfaces()) {
//Windows preallocates link local addresses to interfaces that are down.
//These may or may not work depending on network driver (they do not work for the Bluetooth PAN driver)
if (iface.flags() & QNetworkInterface::IsUp) {
#if defined(Q_OS_WIN)
// Do not add the Teredo Tunneling Pseudo Interface on Windows.
if (iface.humanReadableName().contains("Teredo"))
continue;
#elif defined(Q_OS_DARWIN)
// Do not add "utun" interfaces on macOS: nothing ever gets received
// (we don't know why)
if (iface.name().startsWith("utun"))
continue;
#endif
foreach (QNetworkAddressEntry addr, iface.addressEntries()) {
if (addr.ip().isInSubnet(localMask, 16)) {
addresses << addr.ip();
qDebug() << "Found IPv4 link local address" << addr.ip();
}
}
}
}
if (addresses.isEmpty())
QSKIP("No IPv4 link local addresses");
QList <QUdpSocket*> sockets;
quint16 port = 0;
foreach (const QHostAddress& addr, addresses) {
QUdpSocket *s = new QUdpSocket;
QVERIFY2(s->bind(addr, port), qPrintable(s->errorString()));
port = s->localPort(); //bind same port, different networks
sockets << s;
}
QUdpSocket neutral;
QVERIFY(neutral.bind(QHostAddress(QHostAddress::AnyIPv4)));
QByteArray testData("hello");
foreach (QUdpSocket *s, sockets) {
QVERIFY(s->writeDatagram(testData, s->localAddress(), neutral.localPort()));
QVERIFY2(neutral.waitForReadyRead(10000), QtNetworkSettings::msgSocketError(neutral).constData());
QNetworkDatagram dgram = neutral.receiveDatagram(testData.size() * 2);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.senderAddress(), s->localAddress());
QCOMPARE(dgram.senderPort(), int(s->localPort()));
QCOMPARE(dgram.data().size(), testData.size());
QCOMPARE(dgram.data(), testData);
// Unlike for IPv6 with IPV6_PKTINFO, IPv4 has no standardized way of
// obtaining the packet's destination addresses. The destinationAddress
// and destinationPort calls could fail, so whitelist the OSes we know
// we have an implementation.
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4) || defined(Q_OS_WIN)
QVERIFY(dgram.destinationPort() != -1);
#endif
if (dgram.destinationPort() == -1) {
QCOMPARE(dgram.destinationAddress().protocol(), QAbstractSocket::UnknownNetworkLayerProtocol);
} else {
QCOMPARE(dgram.destinationAddress(), s->localAddress());
QCOMPARE(dgram.destinationPort(), int(neutral.localPort()));
}
QVERIFY(neutral.writeDatagram(dgram.makeReply(testData)));
QVERIFY2(s->waitForReadyRead(10000), QtNetworkSettings::msgSocketError(*s).constData());
dgram = s->receiveDatagram(testData.size() * 2);
QVERIFY(dgram.isValid());
QCOMPARE(dgram.data(), testData);
//sockets bound to other interfaces shouldn't have received anything
foreach (QUdpSocket *s2, sockets) {
QCOMPARE((int)s2->bytesAvailable(), 0);
}
}
qDeleteAll(sockets);
}
void tst_QUdpSocket::readyRead()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
char buf[1];
QUdpSocket sender, receiver;
QVERIFY(receiver.bind(QHostAddress(QHostAddress::AnyIPv4), 0));
quint16 port = receiver.localPort();
QVERIFY(port != 0);
QSignalSpy spy(&receiver, SIGNAL(readyRead()));
// send a datagram to that port
sender.writeDatagram("aa", makeNonAny(receiver.localAddress()), port);
// wait a little
// if QTBUG-43857 is still going, we'll live-lock on socket notifications from receiver's socket
QTest::qWait(100);
// make sure only one signal was emitted
QCOMPARE(spy.size(), 1);
QVERIFY(receiver.hasPendingDatagrams());
#ifdef RELIABLE_BYTES_AVAILABLE
QCOMPARE(receiver.bytesAvailable(), qint64(2));
#endif
QCOMPARE(receiver.pendingDatagramSize(), qint64(2));
// write another datagram
sender.writeDatagram("ab", makeNonAny(receiver.localAddress()), port);
// no new signal should be emitted because we haven't read the first datagram yet
QTest::qWait(100);
QCOMPARE(spy.size(), 1);
QVERIFY(receiver.hasPendingDatagrams());
QVERIFY(receiver.bytesAvailable() >= 1); // most likely is 1, but it could be 1 + 2 in the future
QCOMPARE(receiver.pendingDatagramSize(), qint64(2));
// read all the datagrams (we could read one only, but we can't be sure the OS is queueing)
while (receiver.hasPendingDatagrams())
receiver.readDatagram(buf, sizeof buf);
// write a new datagram and ensure the signal is emitted now
sender.writeDatagram("abc", makeNonAny(receiver.localAddress()), port);
QTest::qWait(100);
QCOMPARE(spy.size(), 2);
QVERIFY(receiver.hasPendingDatagrams());
#ifdef RELIABLE_BYTES_AVAILABLE
QCOMPARE(receiver.bytesAvailable(), qint64(3));
#endif
QCOMPARE(receiver.pendingDatagramSize(), qint64(3));
}
void tst_QUdpSocket::readyReadForEmptyDatagram()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
QUdpSocket sender, receiver;
QVERIFY(receiver.bind(QHostAddress(QHostAddress::AnyIPv4), 0));
quint16 port = receiver.localPort();
QVERIFY(port != 0);
connect(&receiver, SIGNAL(readyRead()), SLOT(empty_readyReadSlot()));
// send an empty datagram to that port
sender.writeDatagram("", makeNonAny(receiver.localAddress()), port);
// ensure that we got a readyRead, despite bytesAvailable() == 0
QTestEventLoop::instance().enterLoop(1);
QVERIFY(!QTestEventLoop::instance().timeout());
char buf[1];
QVERIFY(receiver.hasPendingDatagrams());
QCOMPARE(receiver.pendingDatagramSize(), qint64(0));
#ifdef RELIABLE_BYTES_AVAILABLE
QCOMPARE(receiver.bytesAvailable(), qint64(0));
#endif
QCOMPARE(receiver.readDatagram(buf, sizeof buf), qint64(0));
}
void tst_QUdpSocket::async_readDatagramSlot()
{
char buf[1];
QVERIFY(m_asyncReceiver->hasPendingDatagrams());
QCOMPARE(m_asyncReceiver->pendingDatagramSize(), qint64(1));
#ifdef RELIABLE_BYTES_AVAILABLE
QCOMPARE(m_asyncReceiver->bytesAvailable(), qint64(1));
#endif
QCOMPARE(m_asyncReceiver->readDatagram(buf, sizeof(buf)), qint64(1));
if (buf[0] == '2') {
QTestEventLoop::instance().exitLoop();
return;
}
m_asyncSender->writeDatagram("2", makeNonAny(m_asyncReceiver->localAddress()), m_asyncReceiver->localPort());
// wait a little to ensure that the datagram we've just sent
// will be delivered on receiver side.
QTest::qSleep(100);
}
void tst_QUdpSocket::asyncReadDatagram()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
m_asyncSender = new QUdpSocket;
m_asyncReceiver = new QUdpSocket;
QVERIFY(m_asyncReceiver->bind(QHostAddress(QHostAddress::AnyIPv4), 0));
quint16 port = m_asyncReceiver->localPort();
QVERIFY(port != 0);
QSignalSpy spy(m_asyncReceiver, SIGNAL(readyRead()));
connect(m_asyncReceiver, SIGNAL(readyRead()), SLOT(async_readDatagramSlot()));
m_asyncSender->writeDatagram("1", makeNonAny(m_asyncReceiver->localAddress()), port);
QTestEventLoop::instance().enterLoop(1);
QVERIFY(!QTestEventLoop::instance().timeout());
QCOMPARE(spy.size(), 2);
delete m_asyncSender;
delete m_asyncReceiver;
}
void tst_QUdpSocket::writeInHostLookupState()
{
QFETCH_GLOBAL(bool, setProxy);
if (setProxy)
return;
QUdpSocket socket;
socket.connectToHost("nosuchserver.qt-project.org", 80);
QCOMPARE(socket.state(), QUdpSocket::HostLookupState);
QVERIFY(!socket.putChar('0'));
}
QTEST_MAIN(tst_QUdpSocket)
#include "tst_qudpsocket.moc"
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