From: Alex Dean <
alex@crackpot.org>
> From time to time, I've poked around in /proc/net trying to find a
> list of all the IP addresses currently configured on a linux machine.
> I usually use ifconfig for this purpose, but I'm guessing this data is
> in /proc/net somewhere as well. I just can't find it. Can anyone
> enlighten me?
IIRC, ifconfig gets the IP info from all network interfaces on the system
differently. It first does an ioctl() with SIOCGIFCONF to get a list of
interfaces, then calls ioctl() with SIOCGIFADDR on each interface. It doesn't
read anything in /proc/net/ . Why it does things this way, I don't
know--that's just what I remember from messing with this stuff at a low level
a few years back. I have a small and simple C program that does all this
stuff, but I can't remember where I left it. Probably on my laptop at home.
--
Matt G / Dances With Crows
The Crow202 Blog:
http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see
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