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Date: Mon, 22 Jan 2007 06:03:30 -0700
From: Eric Blake <ebb9 AT byu DOT net>
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To: cygwin AT cygwin DOT com, mark_z AT charter DOT net
Subject: Re: "id -Gn" w/ username doesn't return all associated groups.  Issue  with getgrent()?
References: <001a01c73dae$7dec4af0$6152a8c0 AT ziesemermark> <20070122093419 DOT GR27843 AT calimero DOT vinschen DOT de>
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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fact that your /etc/groups is out-of-date.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 AT byu DOT net
volunteer cygwin coreutils maintainer
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