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Date: Thu, 25 Aug 2005 23:46:38 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Cc: Samuel Thibault <samuel DOT thibault AT ens-lyon DOT org>, dave AT mielke DOT cc
Subject: Re: strerror(), errno and syslog()
Message-ID: <20050825214638.GX17452@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com, 	Samuel Thibault <samuel DOT thibault AT ens-lyon DOT org>, dave AT mielke DOT cc
References: <20050825213422 DOT GQ7662 AT bouh DOT ens-lyon DOT fr>
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On Aug 25 23:34, Samuel Thibault wrote:
> Hi,
> 
> This crashes (yes it's odd code, but it shouldn't crash):
> 
> #include <syslog.h>
> #include <errno.h>
> 
> int main(void) {
> 	errno = -1;
> 	syslog(LOG_ERR,"foo");
> }
> 
> Indeed, one of the first things that vsyslog does is
> 
> 	char *errtext = strerror (get_errno ());
> 	int errlen = strlen (errtext);
> 
> And it happens that the current implementation of strerror() returns
> NULL on invalid errno. This is not posix compliant: posix says that

This has been fixed a week ago.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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