Re: acl and attr: Fix path walking code

[Andreas Gruenbacher <agruen@suse.de>]

On Friday 09 November 2007 08:39:56 Timothy Shimmin wrote:
> You mention -L/-P is like chown.
> However, -P for getattr isn't about not walking symlinks
> to directories,
> it's about skipping symlinks altogether, right?

Hmm, -L and -P define which files and directories are visited, and -h defines 
whether we are looking at symlinks or the files they point to. The two 
concepts are orthogonal. -P is not about skipping symlinks, only about not 
recursing into them.

You can do this (as root), for example:

	$ ln -s dead link
	$ setfattr -h -n trusted.name -v value link
	$ getfattr -h -m- -d -P link
	# file: link
	trusted.name="value"

With "getfattr -R -P -h" you get a physical dump of all attributes ("a real, 
complete dump"), while with "getfattr -R -L" you get a logical dump that 
treats all symlinks as the files they point to. I somewhat doubt that -L 
with -h has real value.

Thanks,
Andreas