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Date: Wed, 12 Jan 2022 11:32:39 -0500
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Subject: Re: posix_spawn issues on i686
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To: cygwin@cygwin.com
References: <alpine.BSO.2.21.2201101132030.11760@resin.csoft.net>
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From: Ken Brown <kbrown@cornell.edu>
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On 1/12/2022 5:41 AM, Corinna Vinschen wrote:
> On Jan 11 16:08, Ken Brown wrote:
>> I don't have time to check this carefully, but it looks to me like the
>> problem is that process_spawnattr calls setegid and seteuid instead of
>> setegid32 and seteuid32.  This causes truncation of the gid and uid.
> 
> You're right.  Additionally the calls to getgid and getuid have to use
> the internal getgid32 and getuid32 functions.

I'll be glad when this 32-bit cruft can be removed.  It is *very* confusing to 
read the code and see a function called getuid that is really only used by old 
applications, except when it's accidentally used internally.  I introduced a 
32-bit-only bug a couple years ago because of a similar confusion between fstat 
and fstat64.

Ken

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