[Pkg-shadow-devel] [PATCH] su(1): document PATH handling when --preserve-environment

[Nicolas François]

On Thu, Jun 04, 2009 at 10:50:36PM +0200, nicolas.francois at centraliens.net wrote:
> Hello,
> 
> On Sun, May 31, 2009 at 12:37:39AM -0400, vapier at gentoo.org wrote:
> >
> > -	  <para>Preserve the current environment.</para>
> > +	  <para>
> > +	    Preserve the current environment (except for <envar>$PATH</envar>
> > +	    as that is still reset per the configuration).
> > +	  </para>
> 
> I took the opportunity to document other environment variables handling:
> 
> ==  PAM version  ============================================================
>        -m, -p, --preserve-environment
>            Preserve the current environment, except for:
> 
>            $PATH
>                reset according to the /etc/login.defs options ENV_PATH or
>                ENV_SUPATH (see below);
> 
>            $IFS
>                reset to “<space><tab><newline>”, if it was set.
> 
>            If the target user has a restricted shell, this option has no
>            effect (unless su is called by root).
> 
>            Note that the default behavior for the environment is the
>            following:
> 
>                The $HOME, $SHELL, $USER, $LOGNAME, $PATH, and $IFS environment
>                variables are reset.

This was still not correct as the default behavior is to copy most of the
environment variables.
I've made another change to su(1).

Best Regards,
-- 
Nekral