Date:	Wed, 15 Aug 2001 09:40:31 +0300
From:	"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender:	halo1 AT zahav DOT net DOT il
To:	sandmann AT clio DOT rice DOT edu (Charles Sandmann)
Message-Id:	<557-Wed15Aug2001094031+0300-eliz@is.elta.co.il>
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In-reply-to:	<10108150440.AA14928@clio.rice.edu> (sandmann@clio.rice.edu)
Subject:	Re: _open.c development dif - Win2000 hacking
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> From: sandmann AT clio DOT rice DOT edu (Charles Sandmann)
> Date: Tue, 14 Aug 2001 23:40:26 -0500 (CDT)
> 
> What's interesting is on my test code I get extra 7160 failures to
> the screen - from fstat() ?  Is this looking for magic numbers or something?

Sorry, I'm probably missing something, because I cannot figure out
where do those failures happen.  Can you elaborate, and perhaps show
some code fragments and error messages?

> More interesting stuff - if 7160 fails, but _chmod succeeds I think this
> is a way under Windows 2000 to know it's a device!

Indeed.

> One thing I need to know - how do people use the directoryname/nul detection
> to determine if a directory exists?

I don't think you need to worry about that: no code I know of uses
this to test for an existing directory.  It's normally either `stat'
or `access (..., D_OK)', but not directory/nul.

> Better to fail (not support dirname/nul) or better
> to have it succeed and cause dev info problems later (appear as a disk
> file instead of a device). 

It's better to fail.  We can document that.

Will look into your code later today.  Thanks.

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