extracting interfaces and ifconfig

[A.A. Serjantov]

Hi,

(Sorry - question rather than bug!)

I am trying to extract a list of currently available (up) interfaces on a
host.

R.W. Stevens says: use SIOCGIFCONF (UNP, vol.1 p 434)
Version 1.56 of net-utils does it by reading _PATH_PROCNET_DEV
and, if failing, resorting to SIOCGIFCONF. A comment states that
SIOCGIFCONF ontly works with AF_INET sockets since 2.1.128

What is the current preferred way of doing this? Are there any hidden
secrets? I think I can cope with assuming existence of AF_INET...

Thanks in advance,

Andrei

------------------
Andrei Serjantov
Queens' College
Cambridge CB3 9ET
http://www.cl.cam.ac.uk/~aas23/