X-Spam-Check-By: sourceware.org Message-ID: <45B4B622.9040406@byu.net> Date: Mon, 22 Jan 2007 06:03:30 -0700 From: Eric Blake User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.9) Gecko/20061207 Thunderbird/1.5.0.9 Mnenhy/0.7.4.666 MIME-Version: 1.0 To: cygwin@cygwin.com, mark_z@charter.net Subject: Re: "id -Gn" w/ username doesn't return all associated groups. Issue with getgrent()? References: <001a01c73dae$7dec4af0$6152a8c0@ziesemermark> <20070122093419.GR27843@calimero.vinschen.de> In-Reply-To: <20070122093419.GR27843@calimero.vinschen.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Corinna Vinschen on 1/22/2007 2:34 AM: >> When "id" is called without a username, it calls the getgroups(...) function >> which appears to work as expected. However, when a specific username is >> passed, even the username of the current user, getugroups(...) is called, >> and does _not_ appear to work as expected. > > That's by design. getgroups() has access to the user token of the > current process and returns every group which is in this token. > getgrent() is a function which enumerates /etc/groups. So my translation of this would be that the bug is not in id, but in the fact that your /etc/groups is out-of-date. Use mkgroups to remedy the situation. - -- Don't work too hard, make some time for fun as well! Eric Blake ebb9@byu.net volunteer cygwin coreutils maintainer -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFtLYi84KuGfSFAYARAniSAJ98xc4e+t/eN6oyjTUJh3db5/DnLACgx3bC WhRr6QVDuMuFUfJvp/zCRr8= =OOLE -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/