Re: Deleting owned files...

[knarf@nasim.sta.sub.org (Frank Bartels)]

Andreas Schwab wrote:
> 
> Stephen Usher <Stephen.Usher@earth.ox.ac.uk> writes:
> 
> |> Under BSD the symatics are:-
> 
> |> 	drwxrwxrwx	Anyone can delete, create or rename files.
> |> 	drwxr-xr-x	Only owner of directory can do the above.
> |> 	drwxrwtrwx	Anyone can create or delete their own files, no-one
> |> 			else (other than root) can do so.

This is not true. The owner of the directory is also permitted to delete
entries in a directory where the sticky bit is set.

> |> The important thing is the directory's protection, not the file's, which
> |> determines who can do what to files in the directory, other than for
> |> chown'ing. To chown a file you need to be the owner or root.
> 
> Under BSD you cannot chown unless you are root, even the owner (of the
> file) cannot.  Otherwise you could fill up other peoples quotas :-)

Or you just make an sh suid and give it to root (asuming there is no
special mechanism deleting the suid-bit when chowning).

Bye,
Knarf
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