diff options
Diffstat (limited to 'src/network/socket')
| -rw-r--r-- | src/network/socket/qnativesocketengine_unix.cpp | 14 | ||||
| -rw-r--r-- | src/network/socket/qnativesocketengine_win.cpp | 14 |
2 files changed, 20 insertions, 8 deletions
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp index d1efc21e09..e140b33ce9 100644 --- a/src/network/socket/qnativesocketengine_unix.cpp +++ b/src/network/socket/qnativesocketengine_unix.cpp @@ -679,10 +679,16 @@ static bool multicastMembershipHelper(QNativeSocketEnginePrivate *d, if (interface.isValid()) { const QList<QNetworkAddressEntry> addressEntries = interface.addressEntries(); - if (!addressEntries.isEmpty()) { - QHostAddress firstIP = addressEntries.first().ip(); - mreq4.imr_interface.s_addr = htonl(firstIP.toIPv4Address()); - } else { + bool found = false; + for (const QNetworkAddressEntry &entry : addressEntries) { + const QHostAddress ip = entry.ip(); + if (ip.protocol() == QAbstractSocket::IPv4Protocol) { + mreq4.imr_interface.s_addr = htonl(ip.toIPv4Address()); + found = true; + break; + } + } + if (!found) { d->setError(QAbstractSocket::NetworkError, QNativeSocketEnginePrivate::NetworkUnreachableErrorString); return false; diff --git a/src/network/socket/qnativesocketengine_win.cpp b/src/network/socket/qnativesocketengine_win.cpp index 80147b47ba..28aea6be3d 100644 --- a/src/network/socket/qnativesocketengine_win.cpp +++ b/src/network/socket/qnativesocketengine_win.cpp @@ -955,10 +955,16 @@ static bool multicastMembershipHelper(QNativeSocketEnginePrivate *d, if (iface.isValid()) { const QList<QNetworkAddressEntry> addressEntries = iface.addressEntries(); - if (!addressEntries.isEmpty()) { - QHostAddress firstIP = addressEntries.first().ip(); - mreq4.imr_interface.s_addr = htonl(firstIP.toIPv4Address()); - } else { + bool found = false; + for (const QNetworkAddressEntry &entry : addressEntries) { + const QHostAddress ip = entry.ip(); + if (ip.protocol() == QAbstractSocket::IPv4Protocol) { + mreq4.imr_interface.s_addr = htonl(ip.toIPv4Address()); + found = true; + break; + } + } + if (!found) { d->setError(QAbstractSocket::NetworkError, QNativeSocketEnginePrivate::NetworkUnreachableErrorString); return false; |