Subject: Need for llistxattrat()/lgetxattrat()/lsetxattrat()
From: Colin Walters <walters@verbum.org>
To: linux-kernel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>
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Date: Fri, 26 Jul 2013 16:28:02 -0400
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Hi,

So at the moment the kernel has pretty comprehensive support for the
*at() variants of file API calls, and at one point I was rewriting my
app to be a modern Unix citizen and use the *at variants, but I ran into
one admittedly obscure corner case, which is the lack of API calls to
manipulate the extended attributes of symbolic links relative to a
dirfd.  

Correctly handling xattrs (in particular, SELinux labels) is a key part
of my application, so for now I'll just live with pathnames and their
drawbacks, but:

Is this intentional or an oversight?  If the latter, should I try a
patch?


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