[BUG] Generic syscalls -- chmod vs. fchmodat
Mike Frysinger
vapier@gentoo.org
Tue Jan 25 20:54:00 GMT 2011
On Tuesday, January 25, 2011 13:21:14 Arnd Bergmann wrote:
> On Tuesday 25 January 2011 18:45:15 Roland McGrath wrote:
> > I know of no reason to
> >
> > think that the current treatment of the empty string was ever intended at
> > the creation of the *at interfaces.
>
> I always assumed that this was done so that the *at syscalls can replace
> both the ones that take a file descriptor (e.g. fstat) and the ones that
> take a pathname (e.g. stat), which is sensible for the non-AT_FDCWD case,
> although not documented in the man pages.
>
> Treating the empty string special for AT_FDCWD is rather pointless, but
> at least consistent.
i dont know if the gnulib peeps are on these lists, but i think their
implementations of some of the *at funcs leverage the extended behavior that
is available under Linux. or at least, i'm certain they'll have some insight
into some of these nuances.
-mike
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