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Date: Mon, 18 Jun 2001 11:53:59 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: Bruce Evans <bde@zeta.org.au>
Cc: current@FreeBSD.ORG, FreeBSD-standards@bostonradio.org
Subject: Re: Ok, try this patch. (was Re: symlink(2) [Was: Re: tcsh.cat])
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<<On Mon, 18 Jun 2001 15:40:23 +1000 (EST), Bruce Evans <bde@zeta.org.au> said:

> NetBSD committed essentially this patch 4 years ago (as part of rev.1.23).
> I like it, except it seems to be incompatible with POSIX.1-200x.

I think I agree with your interpretation.  Quoting from XBDd7, page
101, lines 3153ff:

# In all other cases, the system shall prefix the remaining pathname,
# if any, with the contents of the symbolic link. [...]  [T]he
# resolved pathname shall be the resolution of the pathname just
# created.  If the resulting pathname does not begin with a slash, the
# predecessor of the first filename of the pathname is taken to be the
# directory containing the symbolic link.

So, if we have a symbolic link ``foo'' with contents ``'' (i.e., the
empty string):

	Pathname	Resolves to
	./foo		./foo (i.e., the link itself), iff condition 3
			on lines 3151-2 is met; otherwise [ENOENT]
	./foo/		/
	./foo/bar	/bar

-GAWollman


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