delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2011/04/24/17:17:13

X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.4 required=5.0 tests=AWL,BAYES_40,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,T_TO_NO_BRKTS_FREEMAIL
X-Spam-Check-By: sourceware.org
Message-ID: <4DB49339.9030909@gmail.com>
Date: Sun, 24 Apr 2011 14:16:41 -0700
From: Daniel Colascione <dan DOT colascione AT gmail DOT com>
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: [PATCH] base-files-4.0.6: Change prompt if running with admin rights
References: <4D964392 DOT 6080809 AT t-online DOT de> <4DB45230 DOT 4080106 AT t-online DOT de>
In-Reply-To: <4DB45230.4080106@t-online.de>
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

--------------enig113BB274DF61EB57B9905373
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

On 4/24/11 9:39 AM, Christian Franke wrote:
> On 2011-04-01, Christian Franke wrote:
>> The attached patch for /etc/profile and /etc/bash.bashrc sets a root
>> prompt ('#' instead of '$' or '%') if the shell runs with admin rights
>> (local or domain admin group).
>>
>=20
> Any comment so far? Wrong list ?


I like the idea, but your patch adds two subprocess invocations to the
shell startup path. Each one takes ~200ms, and we can't afford to add
any more.

Instead of examining the group list, you can use something like

local isadmin=3D0
[[ -w / ]] && isadmin=3D1

or

local isadmin=3D0
[[ -w /cygdrive/c ]] && isadmin=3D1

Of course, that test assumes that only "administrators" can write to the
drive root, and that's an imperfect proxy for administrative rights. You
get the idea though: try to perform the test in pure bash code.


--------------enig113BB274DF61EB57B9905373
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (Darwin)

iEYEARECAAYFAk20kzsACgkQ17c2LVA10VtmggCdG8jOuqiLYTjBwo948VYYidym
LVIAoMc7UnMeu/DTy4ctrcORzKymQQiX
=C86B
-----END PGP SIGNATURE-----

--------------enig113BB274DF61EB57B9905373--

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019