Date: Sat, 29 Apr 2000 16:45:18 -0400 From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com> To: Markus Holmberg <markush@acc.umu.se> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: /etc/fbtab login device matching Message-ID: <20000429164518.A30184@cc942873-a.ewndsr1.nj.home.com> In-Reply-To: <20000429171114.A23133@mao.acc.umu.se>; from markush@acc.umu.se on Sat, Apr 29, 2000 at 05:11:14PM %2B0200 References: <20000429171114.A23133@mao.acc.umu.se>
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On Sat, Apr 29, 2000 at 05:11:14PM +0200, Markus Holmberg wrote:
> /etc/fbtab is a file read at login which sets permissions on devices if
> certain conditions are met.
>
> My problem is that I would like to match the login device against a
> simple pattern ("/dev/ttyv*") instead of an absolute name
> ("/dev/ttyv0"). This does not seem to be possible using the current
> implementation (4.0-RELEASE/5.0-CURRENT).
>
> I want to change the ownership of /dev/console to the user that logs in
> (which sounds reasonable, right?)
[snip]
Well, what happens when more than one user is logged in to the
machine? For example, I frequently will log into a machine as a
"mortal" user first on ttyv0. If at some point I need root privs, I go
to the next ttyv and log in there as root rather than su. Who should
own the console? You are setting yourself up for a reverse-race
condition (the last person wins ;) over console ownership.
--
Crist J. Clark cjclark@home.com
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