Date: Thu, 16 Aug 2001 09:18:00 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: wojciech DOT galazka AT polkomtel DOT com DOT pl
Message-Id: <2950-Thu16Aug2001091800+0300-eliz@is.elta.co.il>
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CC: djgpp-workers AT delorie DOT com
In-reply-to: <250B3114DA16D511B82C00E0094005F8023FC080@MSGWAW11> (message from
	=?windows-1250?Q?Wojciech_Ga=B3=B9zka?= on Wed, 15 Aug 2001 22:49:38
	+0200)
Subject: Re: Fw: Fstat.c patch
References:  <250B3114DA16D511B82C00E0094005F8023FC080 AT MSGWAW11>
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> From: =?windows-1250?Q?Wojciech_Ga=B3=B9zka?= <wojciech DOT galazka AT polkomtel DOT com DOT pl>
> Date: Wed, 15 Aug 2001 22:49:38 +0200
> 
> > We need to find a way to determine the drive letter where a file lives
> > given only a handle on which that file is open...  Any ideas?
> 
> Won't the JFT/SFT trick work given a file handle?

It will, if someone points us to the documentation of the Windows 2000
SFT structure, and how to get to it.  The way to do that on DOS is
documented in several resources, but I'm not aware of similar
documentation for Windows.

(Actually, I'm quite confident W2K won't let us access its internal
structures, even if we knew how.  It simply doesn't let applications
access the upper half of the memory address space.  You can't even
create a segment descriptor that spans some memory whose addresses
have the high bit set.)