04-25-2010, 03:41 AM

Sorry to be a pain with noob questions, but does anyone know
a way of returning an NSString object containing the LAN IP address
of the machine the app is running on ? ?

Thanks

Chris

04-25-2010, 06:18 AM

It seems to be a good day for solving my own problems !


After a couple of hours' fannying around, I found an easy way to
do this, although it may not be foolproof on every machine:

Use:

NSArray *mcAddresses = [NSHost addresses];
NSString *ipv4 = [mcAddresses objectAtIndex: 1];

The 0 index of the [NSHost addresses] array is always the ipv6 extended address.
The 1 index seems always to return the ipv4 address of the machine for
the current location setting in System Preferences > Network, which is what
most people will want, I guess.

Chris