Date:	Wed, 14 Mar 2001 09:29:40 -0500
Message-Id:	<200103141429.JAA14360@envy.delorie.com>
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From:	DJ Delorie <dj AT delorie DOT com>
To:	djgpp-workers AT delorie DOT com
In-reply-to:	<Pine.SUN.3.91.1010314093834.22222E-100000@is> (message from Eli
	Zaretskii on Wed, 14 Mar 2001 09:42:55 +0200 (IST))
Subject:	Re: zero fill the eof gap (complete patch)
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> I wonder whether we should really fail the operation if we cannot
> zero-fill the gap.  This seems like a subtly incompatible change: what
> if the file/device we are writing to doesn't support some of the
> trickery you do inside `_write_fill_seek_gap'?  This might break
> programs which worked until now and which don't care about leaving
> garbage in the gaps.
> 
> This is really harsh, IMHO: unless I'm mistaken, it will make all
> writes to a terminal device fail if they dare to lseek it first.
> 
> I think you should simply return zero here: it doesn't make sense to
> zero-fill gaps in writes to terminal devices.

The flag is only set if a non-beginning lseek *succeeds*.  Can that
happen for non-real-files?

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