On Tue, Aug 02, 2011 at 05:45:56PM +0200, Rhialto wrote:
> Ok, then we also want openat(2), fchmodat(2) (which seems to be misnamed
> and looks more like a chmodat(2)), unlinkat(2), fchownat(2) (same remark
> as fchmodat), etc.
And you forgot fexecve(). I agree we want all of them, but I do not think
we want everything at once.
We have linkat(2) which fixes the problem of hard linking symlinks. This
is a small and harmless change. And we have these "*at" functions that
allow specifying pathnames relative to a directory specified by a file
descriptor. That means modifying the namei interface, not a challenge,
but something a bit more intrusive. Therefore I would like to go
incremental, by first supproting this:
linkat (AT_FDCW, name1, AT_FDCW, name2, 0)
linkat (AT_FDCW, name1, AT_FDCW, name2, AT_SYMLINK_FOLLOW)
and return ENOSYS if fd1 and fd2 have values other than AT_FDCW.
Then do the full Extended API set 2.
--
Emmanuel Dreyfus
m...@netbsd.org
