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Mail Archives: djgpp-workers/2001/09/19/03:29:23

From: "Tim Van Holder" <tim DOT van DOT holder AT pandora DOT be>
To: <djgpp-workers AT delorie DOT com>, "'Eli Zaretskii'" <eliz AT is DOT elta DOT co DOT il>
Cc: "'Charles Sandmann'" <sandmann AT clio DOT rice DOT edu>
Subject: Re: freopen/_creat(w2k) interaction [was: Re: Build problems]
Date: Wed, 19 Sep 2001 09:27:29 +0200
Message-ID: <000001c140dc$8aad98e0$1ef8e0d5@pandora.be>
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> Since I've got a working freopen patch, I'll post/commit it after I 
> look at it again.  Pretty trivial (about 5 lines).
> 
> > > I think that assuming handles return in previous slot is 
> a bad assumption;
> > > this could be causing problems with programs that close 
> stdaux and stdprn
> > > for example (they would get allocated first).
> > 
> > So?  What's wrong with that?
> 
> Scenario (may not be real):
> I close handles 3 & 4 (stdaux,stdprn).  I freopen a file 
> structure that
> was on handle 5 - it will now be on handle 3.  If someone expected a
> same handle (saved fileno or something) would not work.

This sounded like it might provide a fix for the Perl problems that
were apparently caused by the closing of stdaux and stdprn.
Unfortunately, this seems not to be the case; I rebuilt perl 5.7.2
with the current CVS libc (and with libc's popen/pclose instead of the
local version in Perl's djgpp.c) - spawned subprograms still have the
same issues unless I disable the closing of stdaux and stdprn.

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