At Sun, 19 Mar 2006 17:58:16 -0500, Thomas Schwinge <[EMAIL PROTECTED]> wrote: > > On Sun, Mar 19, 2006 at 11:17:48PM +0100, Marcus Brinkmann wrote: > > But what corresponds to the Unix group concept? I have identified two > > semantic uses for a "group": > > > > 1) Sharing information and authorization. Ie, allow communication > > among users of the same group. > > > > 2) Provide durable storage that is not associated with any particular > > member of the group. > > 3) Hindrance of the above. > > #v+ > $ groups > users foo > $ ls -l /tmp/not-for-fooers > -rw----rw- 1 thomas foo 0 Mar 19 23:45 /tmp/not-for-fooers > $ cat /tmp/not-for-fooers > cat: /tmp/not-for-fooers: Permission denied > #v-
I'm disgusted! > I don't know if there's a real-world example of this facility being used, > though. I sincerely hope there isn't. Otherwise it would rank very high in my list of horrible Unix idiosyncrasies. In a capability system, the right way not to share something is, uhm, not to share it, of course. Thanks, Marcus _______________________________________________ L4-hurd mailing list [email protected] http://lists.gnu.org/mailman/listinfo/l4-hurd
