Re: Secure deletion

Tom Vier (nester@sekurity.org)
Fri, 24 Jul 1998 04:35:12 -0400 (EDT)


> > unless, you use fcntl to get an exclusive lock on file, which is what
> > my program (which i'm finishing up right now) does.
>
> Aren't those discretionary locks?

if you set the sgid bit and clear the group execute bit, then it's
mandatory.

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