From: Leo Famulari <leo@famulari.name>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel@gnu.org
Subject: Re: Patching the default PATH of `su`
Date: Fri, 6 Apr 2018 08:39:26 -0400 [thread overview]
Message-ID: <20180406123926.GA1883@jasmine.lan> (raw)
In-Reply-To: <8737084vbe.fsf@gnu.org>
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On Fri, Apr 06, 2018 at 10:01:57AM +0200, Ludovic Courtès wrote:
> Probably, yes. It would be good to check how this affects
> mingetty/login, sshd, etc.
Okay. I can test the change.
> Note that libc also has its own default PATH value in <paths.h>:
>
> /* Default search path. */
> #define _PATH_DEFPATH "/usr/bin:/bin"
> /* All standard utilities path. */
> #define _PATH_STDPATH \
> "/usr/bin:/bin:/usr/sbin:/sbin"
>
> Does ‘su’ rely on this? In a future rebuild cycle we could change these
> values, but /run/current-system/bin wouldn’t work on foreign distros, so
> it’s not clear there’s much to gain.
I don't think `su` uses this, but I'll find out. As you say, it wouldn't
help much on foreign distros. I think the situation with `su` is
different, since it seems inconvenient to use our `su` on a foreign
distro, because it needs to be setuid.
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prev parent reply other threads:[~2018-04-06 12:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-05 16:37 Patching the default PATH of `su` Leo Famulari
2018-04-06 8:01 ` Ludovic Courtès
2018-04-06 12:39 ` Leo Famulari [this message]
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