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Date: Fri, 21 Feb 2003 14:12:09 -0500
From: Jason Tishler <jason AT tishler DOT net>
Subject: Re: 1.3.21
In-reply-to: <3E566E49.53BE7CBE@ieee.org>
To: "Pierre A. Humblet" <Pierre DOT Humblet AT ieee DOT org>
Cc: cygwin-developers AT cygwin DOT com
Mail-followup-to: "Pierre A. Humblet" <Pierre DOT Humblet AT ieee DOT org>,
 cygwin-developers AT cygwin DOT com
Message-id: <20030221191209.GE1408@tishler.net>
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 <20030221180822 DOT GB1408 AT tishler DOT net> <3E566E49 DOT 53BE7CBE AT ieee DOT org>


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Pierre,

On Fri, Feb 21, 2003 at 01:22:01PM -0500, Pierre A. Humblet wrote:
> Jason Tishler wrote:
> > I just upgraded exim to 4.12-3 from 4.10-2 and exim started to
> > misbehave when run under Cygwin CVS (from 2003-02-20).
> > 
> > First, I noticed the following in exim's log file:
> > 
> >     2003-02-21 11:06:10 cannot find smtp/tcp service when starting daemon
> > 
> > Under strace or gdb, the above problem did not occur.  Instead, I
> > got the following:
> > 
> >     2003-02-21 11:11:06 IPv4 socket creation failed: Operation not permitted
> > 
> > which is further on during the initialization of the daemon.
> 
> Has this part of the exim daemon changed between 4.10 and 4.12?

AFAICT, no.

> This reminds me of something similar, possibly last month.  Look for
> "exim", "services", "gerritt" In the end it was because exim was
> running as a special user who didn't have permission on the whole tree
> under c:\winnt.  First make sure Everybody has rx access to it.

I found some 770s, changed them to 775, but still no luck.

The above doesn't explain why the attached works when run under the exim
account even with the "bad" permissions:

    $ ssh exim AT localhost /tmp/getservbyname
    getservbyname(smtp, tcp) succeeded
    port = 6400

It also doesn't explain with gdb and strace "fixed" the bad permissions
too.

Thanks,
Jason

-- 
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#include <stdio.h>
#include <netdb.h>

int
main()
{
	struct servent *smtp_service;
	smtp_service = getservbyname("smtp", "tcp");
	if (smtp_service)
	{
		printf("getservbyname(smtp, tcp) succeeded\n");
		printf("port = %d\n", smtp_service->s_port);
	}
	else
	{
		printf("getservbyname(smtp, tcp) failed\n");
	}

	return 0;
}

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