Messages in this thread | | | Date | Thu, 3 May 2012 14:20:25 +0100 | From | Al Viro <> | Subject | Re: [PATCH] open(2): document O_PATH |
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On Thu, May 03, 2012 at 09:07:07AM -0400, Ted Ts'o wrote: > On Thu, May 03, 2012 at 01:57:21PM +0530, Aneesh Kumar K.V wrote: > > > > fstat won't work, but fstatat with an empty path name would work. O_PATH > > descriptors are suppose to be used as "location only descriptors". > > We then extended the *at syscalls to work with EMPTY pathnames so that > > O_PATH descriptors can be used with readlink, fchownat and fstatat(). > > This was done to enable us to do these operation on symlinks. > > (65cfc6722361570bfe255698d9cd4dccaf47570d) > > Could you define explicitly what you mean by "EMPTY" pathnames?
"". Normally yields -EINVAL when used as a relative pathname in ...at() syscalls.
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