On Sat, Jul 18, 2020 at 03:17:05PM +0000, marfabastewart wrote:
> I apologize!!! I have my mail client set to use plaintext
> so I didn't think tabs woud be a problem. I'm
> re-posting with just spaces.
>
> Synopsis: netstat address family and interface, well-known protocols
> Category: user
> Environment:
> System : OpenBSD 6.7
> Details : OpenBSD 6.7-current (GENERIC.MP) #351: Wed Jul 15 16:57:00
> MDT 2020
>
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine : amd64
> Description:
> netstat doesn't limit output to address family when used with -I, and
> protocol list problem
> How-To-Repeat:
> netstat -f inet -s -I lo0
> or
> netstat -s -f inet -I lo0
> netstat -f inet -I lo0
>
> Any interface can be used instead of lo0.
> Netstat shows ipv6 information also although man netstat says
> If the -f address_family option (with the -s option) is present,
> show per-interface statistics on the given interface for the
> specified address_family.
>
> (It does, but doesn't limit output to the specified address_family.)
>
> netstat -p only works for the protocols hard-coded in the protox struct in
> /usr/src/usr.bin/netstat/main.c
>
> Fix:
> I'm not too well-versed in C (as perhaps my questions make clear)
> but happy to try to offer patches if someone would suggest
> the general direction of changes to make (and if the whole problem is not
> EBKAC).
>
> I note that netstat -f inet works but adding the -I doesn't seem to work.
> Is it because if iflag is set, we call intpr:
> if (iflag) {
> intpr(interval, repeatcount);
> exit(0);
> }
> in lines 295-296 in /usr/src/usr.bin/netstat/main.c?
>
> For the protocol problem, I see the call to getprotoent but
> no call to getprotobyname in the name2protox function in
> /usr/src/usr.b/in/netstat/main.c
>
>
hi.
at the very least, there is a doc bug here. before the last change to
netstat.1, we showed -I and -f being compatible, in SYNOPSIS. in the
most recent change to netstat.1, i removed that after some help from
guenther in trying to track down what actually works. the -f text in the
description of -I remained.
i will try to work out whether it's a doc fix or a code fix (i.e. bug
those who know).
jmc
