> Is there any problem if alice can > chgrp bob foo > even if she is not a member of bob? >
On unix you got +s-bits, so a cool way for a rootshell is to setuid a copy of /bin/sh and make a nice present to Mr. root ;) - Plan9 got neither root nor +s, so I don't see a problem. (Of course, you must be the owner of that file to make chgrp, elsewise, the model breaks.) > Kenji Arisawa
