Date: Wed, 06 Dec 2000 01:52:00 +0000 From: Brian Somers <brian@Awfulhak.org> To: oscar@163.net Cc: freebsd-net@FreeBSD.org, brian@Awfulhak.org Subject: Re: get tun0's ip from my program Message-ID: <200012060152.eB61q0H00910@hak.lan.Awfulhak.org> In-Reply-To: Message from oscar@163.net of "Tue, 05 Dec 2000 16:59:41 %2B0800." <3A2CAE7D.25590@bjapp6.163.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> I want to get tun0's two ip addresses.
> and add ipfw rules to system at my program.
> How can I do it?is there a function? or
> have document describe it. someone please tell me!
> thank you!
If you're using ppp, you can call a script with the primary interface
address from ppp.linkup like this:
MYADDR:
!bg myscript MYADDR
There's no way to get your hands on any secondary IP numbers though...
unless you do something like
MYADDR:
!bg myscript INTERFACE
and then have a script that does something like
#! /bin/sh
ips=`ifconfig $1 | sed -n 's/ *inet \([^ ]*\) .*/\1/p'`
.....
If you're doing this from a program, have a look at the code in
ppp/iface.c to see how ppp does it.
> oscar
> oscar@163.net
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200012060152.eB61q0H00910>