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To: cygwin AT cygwin DOT com
Subject: Re: mkstemp bug
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From: Sam Steingold <sds AT gnu DOT org>
In-Reply-To: <20050428022934.GC31448@trixie.casa.cgf.cx> (Christopher Faylor's message of "Wed, 27 Apr 2005 22:29:34 -0400")
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Date: Thu, 28 Apr 2005 09:42:16 -0400
Message-ID: <usm1b9fwn.fsf@gnu.org>
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> * Christopher Faylor <pts-ab-crefbany-ercyl-cyrnfr AT pltjva DOT pbz> [2005-04-27 22:29:34 -0400]:
>
> On Wed, Apr 27, 2005 at 07:39:37PM -0400, Sam Steingold wrote:
>>> * Christopher Faylor <pts-ab-crefbany-ercyl-cyrnfr AT pltjva DOT pbz> [2005-04-27 18:20:31 -0400]:
>>>
>>>>the problem is that mkstemp() does not regard FIFOs (as created by
>>>>mkfifo() or mknod()) as existing files.
>>>>
>>>>e.g.
>>>>
>>>>  char s1[] = "/tmp/foo-XXXXXX";
>>>>  char s2[] = "/tmp/foo-XXXXXX";
>>>>  int fd = mkstemp(s1);
>>>>  close(fd); remove(s1);
>>>>  mkfifo(s1,0644);
>>>>  mkstemp(s2);
>>>>  strcmp(s1,s2) ===> 0
>>>
>>> fifos just barely work under cygwin.  I wouldn't recommend using them.
>>
>>Yes, it appears that they are heavily broken.
>
> So when I say "fifos just barely work" you felt the need to inform me
> that they don't work?  And that advances the discussion how, exactly?

I did not just tell you that they are broken.
I also gave you a test case for FIFOs.
I think such a test case is useful for development and debugging.

-- 
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