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Subject:	Re: [ANNOUNCEMENT] Updated: cygwin-1.5.19-1
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From:	Sam Steingold <sds AT gnu DOT org>
In-Reply-To:	<Pine.CYG.4.58.0601181403430.468@PC1163-8460-XP.flightsafety.com> (Brian Ford's message of "Wed, 18 Jan 2006 14:06:19 -0600")
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Date:	Wed, 18 Jan 2006 15:30:43 -0500
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> * Brian Ford <Oevna DOT Sbeq AT syvtugfnsrgl DOT pbz> [2006-01-18 14:06:19 -0600]:
>
> On Wed, 18 Jan 2006, Sam Steingold wrote:
>
>> here is a simple test case:
>>
>> int main (int argc, char *argv[]) {
>>   char executable[MAXPATHLEN];
>>   realpath(argv[0],executable);
>>   if (open(executable,O_RDONLY|O_BINARY,0644) < 0) return 1;
>>   else return 0;
>> }
>>
>> it worked (returned 0) before and it works on Linux.
>> it does not work now.
>
> Looks very similar to:
>
> http://www.cygwin.com/ml/cygwin/2004-09/msg00867.html

not only cygwin "drops extension" from argv[0] (as your bug report
says), it also fails to restore it in realpath().

the point here is that the return value of realpath() cannot fail to
open due to ENOENT - as it does on cygwin.

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