Determining Local IP Address within .profile

[Kevin Steves]

On Wed, Sep 04, 2002 at 02:41:45PM +0100, Mario Paumann wrote:
> I haven't found an easy solution to determine the local IP to which the remote SSH client is connected to the local SSHD. We use MC/Serviceguard which can create many Interfaces where a remote client could connect and we like to know within .profile which interface the client has connected to.
> 
> I've looked at the sourcecode and maybe the following could do something I described :
> 
> session.c:871 RCSID("$OpenBSD: session.c,v 1.142 2002/06/26 13:49:26 deraadt Exp $");
> do_setup_env
> 
>         child_set_env(&env, &envsize, "SSH_LOCAL_IP", get_local_ipaddr(packet_get_connection_in());     
> 
> what do you think of it ?

I agree this is useful.
See also: http://bugzilla.mindrot.org/show_bug.cgi?id=384

I would perhaps be better if this all were exposed in just one environment
variable, e.g.,
SSH_CONNECTION=172.31.1.53 14932 192.168.1.9 24

and deprecate SSH_CLIENT, but adding SSH_SERVER as in 384 may be
less confusing.