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Re: Can't interrupt directory_files_internal run from timer-event-handle
Re: Can't interrupt directory_files_internal run from timer-event-handler
Sun, 14 Aug 2005 22:13:09 +0200
On Mon, Aug 08, 2005 at 08:27:40PM -0400, Richard M. Stallman wrote:
> I'm not an expert on this, but I think it's impossible to create such
> alternate names, since GNU Find uses this fact to detect directories
> with no subdirectories.
> Linux seems to refuse to do this even if you are root.
> But I believe that root could do it on Unix at some point.
> Maybe that was only in old versions in the early 80s.
Yes, indeed Unix v5 (fifth edition from 1974, that is _not_ SysV!),
does allow root to make hard links on directories. But the seventh
edition from 1978 already prohibits it. (sorry, at the moment I don't
have a v6 at hand to test it there... ;-))
Every more modern Unix I tried, whether free or proprietary, whether
SysV or BSD based, refuses to do this even for root.
So I'd think that this case can be safely ignored. I don't know about
non unixoid systems, though.
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Re: Can't interrupt directory_files_internal run from timer-event-handler, Stefan Monnier, 2005/08/09