Can't obtain local IP using gethostbyname()

Question

A friend used the following snippet of code to retrieve the local IP address of the host in his LAN.

int buffersize = 512;
char name[buffersize];

if(gethostname         


        

Answer 1

If you really use Qt, you can use this code

foreach (const QHostAddress& address, QNetworkInterface::allAddresses() ) {
        qDebug() << address.toString();
    }

If you are not using Qt, you can study, how it is made there.