Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/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
Message-ID: <3E5BAB43.94FFA9ED@ieee.org>
Date: Tue, 25 Feb 2003 12:43:31 -0500
From: "Pierre A. Humblet" <Pierre DOT Humblet AT ieee DOT org>
X-Accept-Language: en,pdf
MIME-Version: 1.0
To: Jason Tishler <jason AT tishler DOT net>, cygwin AT cygwin DOT com
Subject: Re: exim 4.12-3 winsock problem (was Re: 1.3.21)
References: <20030221153741 DOT GA26756 AT redhat DOT com>
	 <20030221180822 DOT GB1408 AT tishler DOT net> <3E566E49 DOT 53BE7CBE AT ieee DOT org>
	 <20030221191209 DOT GE1408 AT tishler DOT net> <20030224200201 DOT GA2348 AT tishler DOT net>
	 <3E5A8939 DOT CE055B7F AT ieee DOT org> <20030224215244 DOT GA2612 AT tishler DOT net>
	 <3E5A998A DOT 51607934 AT ieee DOT org> <20030225114401 DOT GA1876 AT tishler DOT net>
	 <3E5B8599 DOT B853407A AT ieee DOT org> <20030225170155 DOT GI1876 AT tishler DOT net>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Jason Tishler wrote:
> 
> Pierre,
> 
> On Tue, Feb 25, 2003 at 10:02:49AM -0500, Pierre A. Humblet wrote:
> > So I suggest a simple test: edit /etc/passwd and change the gid of the
> > exim user to 545, then run again.
> 
> The above fixed the problem.  I apologize for not being able to figure
> this out myself.

Actually I'd rather have you hit this problem than almost anybody else.
Figuring out what was happening without accurate strace output 
took some doing.

Can you invest a little more time and try to understand why wsock 
doesn't start without it (e.g. lookup how privileges are assigned on your 
system)? I'd like to detect the bad situation and log a warning. 

> > By the way, I am not sure what you try to achieve running the exim
> > daemon as a special exim user.
> 
> I'm not:

OK, but because you have defined an "exim" user in /etc/passwd, the daemon
running as 18 setuid to exim (see README). That reduces the "danger" of running
as SYSTEM. I have tried to keep this mechanism because exim prides it about
running as root as little as possible, but as we have have just seen, this
is tricky on Windows because a minimum level of privilege is apparently needed.
So let me rephrase the question: is there a particular reason why you have 
defined an exim user (in addition to having a mail group for deliveries,
I know that makes a lot of sense). 


Pierre

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/