Problems with interface enumeration

[Mark Brown <broonie@tardis.ed.ac.uk>]

I've noticed that quite a few of the tools that try to enumerate network
interfaces are broken on the Alpha.  It appears that this is some kernel
bug - routed used to exhibit it until I reported a bug with the patch
below, and I've just come across it in nmap (which is rendered useless
as a result) and I think it may exist in Zebra too.

Before I go filing RCBs, am I missing something?

* Tue Jun 16 1998 Jeff Johnson <jbj@redhat.com>
- add offset to get aligned ifreq's on alpha. This should be
  fixed in the kernel eventually.

--- netkit-routed-0.10/routed/main.c.compat21   Tue Dec 22 15:00:04 1998
+++ netkit-routed-0.10/routed/main.c    Tue Dec 22 15:06:26 1998
@@ -253,7 +253,7 @@
                sigemptyset(&sigset);
                sigaddset(&sigset, SIGALRM);
                sigprocmask(SIG_BLOCK, &sigset, &osigset);
-               if (ibits.fds_bits[s/32] & (1 << s))
+               if (FD_ISSET(s, &ibits))
                        process(s);
                /* handle ICMP redirects */
                sigprocmask(SIG_SETMASK, &osigset, NULL);

-- 
Mark Brown  mailto:broonie@tardis.ed.ac.uk   (Trying to avoid grumpiness)
            http://www.tardis.ed.ac.uk/~broonie/
EUFS        http://www.eusa.ed.ac.uk/societies/filmsoc/