From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DJGPP and Windows 2000
Date: Thu, 09 Aug 2001 22:56:35 +0300
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Wojciech Galazka wrote:
> 
> Charles Sandmann wrote in <3b71da94 DOT sandmann AT clio DOT rice DOT edu>...
> [...]
> >2) Many bugs in the long file name support.  A quick workaround is to
> >   set lfn=n if something doesn't work right.  Example: rename to the
> >   same name library call fails (strip/ar fail).  Touch fails.  You can
> >   always set it back via lfn=
> 
> Could you provide more details on this ?

There are too many details ;-)

In a nutshell, the LFN-aware functions are not to be trusted on W2K.  In
particular, handles created by an LFN variant of _open fail some important
functions of Int 21h that take a file handle, such as functions 5700h and
5701h, and all subfunctions of function 44h (IOCTL) seem to return zero
instead of valid info.  The latter problem is the reason why ">/dev/null"
doesn't work on W2K.

In other words, the LFN API implementation introduced with W2K is a can of
worms, and it will take time to work around that.  Wherever you take a good
look, you find subtle misfeatures and bugs.