Date:	Tue, 22 Apr 2003 10:33:42 +0200
From:	"Eli Zaretskii" <eliz AT elta DOT co DOT il>
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To:	rich AT phekda DOT freeserve DOT co DOT uk
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In-reply-to:	<3EA435FE.D15313E1@phekda.freeserve.co.uk> (message from Richard
	Dawe on Mon, 21 Apr 2003 19:18:38 +0100)
Subject:	Re: fstat, fd_props and inventing inodes, revision 3 [PATCH]
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> Date: Mon, 21 Apr 2003 19:18:38 +0100
> From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
> > 
> > If `fstat' supports UNCs, but `stat' does not, it is IMHO a bug that
> > we ought to fix.
> 
> I think 'stat' used to support UNCs. I recall testing it: when I was working
> on unc_fsx, you pointed out that some library functions already supported and
> UNCs and I believe stat was the one.

Perhaps I'm no longer familiar enough with the CVS code, but unless
`stat' performs the same UNC-to-drive-letter mapping, it will generate
an inode that is different from what `fstat' produces for the same
file.  And that's the bug I was referring to.

> > If the drive mappings are changed during the program's execution, I
> > think the file descriptor is no longer valid.  Perhaps someone could
> > try this and see whether I'm mistaken.
> 
> Yes, it does. Below is t-unc.c. If you change the mapping while the program is
> sleeping, the second filelength call will fail with errno == EINVAL.

Thanks for testing.  So this is not an issue, I think.

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