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Avoid use of v4-mapped QHostAddress::AnyIPv4 local address on Windows 

Some Windows kernels return a v4-mapped QHostAddress::AnyIPv4 as a
local address of the socket which bound on both IPv4 and IPv6
interfaces. This address does not match to any special address and
should not be used to send the data.

To allow handling of the local addresses properly, replace it with
QHostAddress::Any.

Already tested by tst_qudpsocket.

Task-number: QTBUG-52714
Change-Id: Icb7cb75f48cd7ec9b0a9dfaf861ffe0d3093e20d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
bb10
Alex Trotsenko 2016-05-02 12:08:00 +03:00
parent 728a1b4f29
commit 4ef269963b
1 changed files with 13 additions and 0 deletions
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13
src/network/socket/qnativesocketengine_win.cpp
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@ -573,6 +573,19 @@ bool QNativeSocketEnginePrivate::fetchConnectionParameters()
}
}
// Some Windows kernels return a v4-mapped QHostAddress::AnyIPv4 as a
// local address of the socket which bound on both IPv4 and IPv6 interfaces.
// This address does not match to any special address and should not be used
// to send the data. So, replace it with QHostAddress::Any.
if (socketProtocol == QAbstractSocket::IPv6Protocol) {
bool ok = false;
const quint32 localIPv4 = localAddress.toIPv4Address(&ok);
if (ok && localIPv4 == INADDR_ANY) {
socketProtocol = QAbstractSocket::AnyIPProtocol;
localAddress = QHostAddress::Any;
}
}
memset(&sa, 0, sizeof(sa));
if (::getpeername(socketDescriptor, &sa.a, &sockAddrSize) == 0) {
qt_socket_getPortAndAddress(socketDescriptor, &sa, &peerPort, &peerAddress);