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From: pc123@cus.cam.ac.uk (Pete Chown)
Subject: Re: UFS on disk inode "spare" fields bad [and patch]
In-Reply-To: s902113@minyos.xx.rmit.OZ.AU's message of 16 Jan 1993 14:07:25 GMT
Message-ID: <PC123.93Jan16173745@apus.cus.cam.ac.uk>
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Organization: U of Cambridge, England
References: <1993Jan15.062302.15669@fcom.cc.utah.edu> <1j94qtINNjmd@escargot.xx.rmit.OZ.AU>
Date: Sat, 16 Jan 1993 17:37:49 GMT
Lines: 26
I was the person who wrote the access control list package... funnily
enough all the spare entries in the imap were zero anyway on my
machine. Even if this isn't so on other machines, the patches for the
access lists will have the same effect as the patches posted here.
Probably the two sets of patches will clash - so some care may be
called for.
The ACL package will be appearing on ref.tfs.com soon, as a kind
person has told me how to get myself an account.
To get some idea, what would people think to including this in future
kernel releases? It seems to be a nice feature that distinguishes
386BSD from the large bulk of Unixes out there (a lot of people assume
that free software is automatically worse). If you are running a
system with a lot of users, it could be very useful; it is certainly
useful on my machine.
To give a "taste" of what it can do, I am running a standard Berkeley
ftpd, but if you upload a file into my /incoming directory you can't
download it again until I let you. Nor can you delete it, change its
permissions, or anything else. In other words you can use the package
to create write only directories, among other things...
--
---------------------------------------------+ "A tight hat can be stretched.
Pete Chown, pc123@phx.cam.ac.uk (Internet) | First damp the head with steam
pc123@uk.ac.cam.phx (Janet :-) -+ from a boiling kettle."