On Fri, 3 Mar 2017 12:28:01 -0600 Eric Blake <ebl...@redhat.com> wrote:
> On 03/03/2017 12:15 PM, Greg Kurz wrote: > > > > > O_PATH | O_NOFOLLOW is a special case as described in the last paragraph > > of O_PATH in the man page: > > > > If pathname is a symbolic link and the O_NOFOLLOW flag is > > also > > specified, then the call returns a file descriptor referring > > to > > the symbolic link. This file descriptor can be used as > > the > > dirfd argument in calls to fchownat(2), fstatat(2), > > linkat(2), > > and readlinkat(2) with an empty pathname to have the calls > > oper‐ > > ate on the symbolic link. > > Only when coupled with AT_EMPTY_PATHNAME. Without that additional flag, > then it must be a directory. > And we don't use AT_EMPTY_PATHNAME, so this should work indeed.
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