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Date: Tue, 8 Jan 2002 11:15:11 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
cc: djgpp-workers AT delorie DOT com, Tim Van Holder <tim DOT van DOT holder AT pandora DOT be>
Subject: Re: bash's 'test' is inconsistent on XP (causing autoconf testsuite failures)
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On Tue, 8 Jan 2002, Charles Sandmann wrote:

> _truename fails for devices on Win2K (both calls, original and fixpathed).
> findfirst succeeds.  The return name is the 3 character item (nul, con, etc).
> The return time field is zero, date field is 33).  Size is zero.  As noted
> above, attribute byte is incorrect (doesn't set device).
> 
> Suggestion:
> 1) If truename failed (but findfirst is OK), and
> 2) If size is zero, and
> 3) If date+time field is the unique "device time", and 
> 4) If os_trueversion is 0x532 and LFN, and 
> 5) (maybe) if returned file name length == 3
> 
> Then we set the 0x40 bit in the attribute byte and let lstat handle it ?

Sounds like a good idea; the telltale ``device time'' is especially 
promising.

But please don't use 5): device names can be up to 8 characters (e.g. 
EMMXXXX0 used by expanded memory managers), so we cannot limit them to 3 
characters.  Perhaps the lack of slashes is a better sign, since 
_truename is supposed to return a fully-qualified file name.

Alternatively, we could call the SFN version of _truename in addition to 
the LFN version, perhaps only if we suspect a device under W2K/XP.