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Date: Thu, 20 Feb 1997 12:40:02 -0500
From: Garrett Wollman <wollman@lcs.mit.edu>
Message-Id: <9702201740.AA09784@halloran-eldar.lcs.mit.edu>
To: elh@astroarch.com
Cc: freebsd-bugs@freebsd.org, elh@secretariat.astroarch.com
Subject: SIOCGIFPHYS
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<<On Wed, 19 Feb 1997 20:36:28 -0600, elh@astroarch.com said:

> I am in need of code that can query the physical hardware address of
> an ethernet. I have written the following code but it is to no
> avail.

SIOCGIFPHYS does not get the hardware address.  In fact, it does not
do anything at all.  It was intended to get the currently-selected
medium, but this was never implemented by any of the driver writers.

You should use SIOCGIFCONF and look for addresses in the AF_LINK
family where the sdl_type member (of struct sockaddr_dl, defined in
<net/if_dl.h>) is IFT_ETHER.

-GAWollman

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, ANA, or NSA|                     - Susan Aglukark and Chad Irschick