Get local IP address in Qt

Question

Is there a cross-platform way to get the local IP address (i.e. something that looks like

192.168.1.49

) of the computer using Qt?

I want to make an FTP server for a Symbian phone and I want to show the IP address the FTP client should connect to.

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Answer 1

Use QNetworkInterface::allAddresses()

foreach (const QHostAddress &address, QNetworkInterface::allAddresses()) {
    if (address.protocol() == QAbstractSocket::IPv4Protocol && address != QHostAddress(QHostAddress::LocalHost))
         qDebug() << address.toString();
}

Get local IP address in Qt

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