Re: [Lcd4linux-devel] IP address of an interface

[Martin H. <ma...@he...>]

Hi Michael,

> a user just asked how to get the IP address of (any) interface. So I 
> found out that we currently have no way to fetch the address anywhere.
> 
> /proc/net/dev does not contain any IP addresses.
> 
> plugin_ppp uses an ioctl() for PPP stats, but I found nothing about IP 
> addresses there.
> 
> anyone knows how to (easily) found out such things like addresses, MAC, 
> netmask, ... all this things ifconfig reports? (I don't want to solve 
> this using an exec 'ifconfig')
The IP-Address (as well as MAC address and other stuff reported by 
ifconfig) can be read by using ioctl calls (on a socket file-handle).

To implement that, it would basically need the same code as what Xavier 
is working on at the moment for getting wireless stats (Xavier - I 
haven't forgotten you, I'll hopefully have some time to go over and test 
your new plugin today - I didn't have access to my wireless-testbox in 
the last few days).

Shouldn't be too hard to implement, even if the individual IOCTL calls 
seem to not be documented terribly well.

Martin

-- 
You think that's tough?  Try herding cats!