I discovered that when asking for the IFLIST via sysctl(), if you
specify only AF_INET address, it actually gives you only AF_INET..
(suprise, suprise..!)
Now, it should "do the right thing" in just about all cases... The only
problem, is that "the right thing" isn't exactly clear in all cases.
ifconfig would segfault on "ifconfig ed0 ether up" and the like).
The main reason for this commit was that an "ifconfig -a" would also show
the AF_INET addresses in AF_IPX form (if the kernel was configured for IPX)
due to insufficient AF checking in my "new way" of doing it.
and the ethernet address for non-root users.
I apologise to the world for propagating the ugliness of some of the code
constructs within ifconfig... Fixing them would just abou mean rewriting
most of the function call interfaces, something I didn't have the stomach
for. :-)
actually retrieves all the information no matter how many interfaces
there are. (Probably there are other utilities which need similar
modification.)
Submitted by: Andrew Webster <awebster@dataradio.com>
Submitted by: Mike Mitchell, supervisor@alb.asctmd.com
This is a bulk mport of Mike's IPX/SPX protocol stacks and all the
related gunf that goes with it..
it is not guaranteed to work 100% correctly at this time
but as we had several people trying to work on it
I figured it would be better to get it checked in so
they could all get teh same thing to work on..
Mikes been using it for a year or so
but on 2.0
more changes and stuff will be merged in from other developers now that this is in.
Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com
in the man page. ifconfig -au affects all interfaces marked as up,
and ifconfig -ad affects only the interfaces marked down. ifconfig -a
still handles everything. This change is purely for compatibility with
SunOS, for those who might be accustomed to the SunOS ifconfig's
behavior.
- The -a flag now works just as it does in SunOS: '-a' is actually
handled like a wildcard for all interfaces. 'ifconfig -a' displays
the status of all interfaces, 'ifconfig -a netmask 0xffffff00' sets
the netmask of all interfaces, and so forth. I don't know if many
people really need to be able to set the netmasks of all interfaces
at once, but the SunOS ifconfig seems to allow this, so there you
have it.
- An 'ether_status' function has been added to display the ethernet
address of all ethernet interfaces. Again, as in SunOS, you must
be root in order for this to work. The ethernet address is read
from /dev/kmem using kvm_open() and kvm_read(), much in the same
was as it's done with netstat. If you choose to install ifconfig
set-gid kmem then normal users will be able to see the ethernet
address as well, though this may not be desireable. This feature
requires a small change to the ifconfig Makefile: you need to link
with -lkvm in order to use the kvm_*() functions.
Submitted by: wpaul
