Messages in this thread | | | Date | Sat, 26 Dec 1998 11:01:32 +0000 (GMT) | From | Bryn Paul Arnold Jones <> | Subject | Re: Wanted: Secure-delete utility for Linux |
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On Thu, 24 Dec 1998, Jose Carlos Benfati wrote:
> Try "man chattr". Here is part of what I found: > > When a file with the `s' attribute set is deleted, its > blocks are zeroed and written back to the disk. > >
Use the source Luke ... linux/fs/ext2/truncate.c,35+10: #if 0
/* * Secure deletion currently doesn't work. It interacts very badly * with buffers shared with memory mappings, and for that reason * can't be done in the truncate() routines. It should instead be * done separately in "release()" before calling the truncate routines * that will release the actual file blocks. * * Linus */
Bryn - -- PGP pubkeys from http://www.gytha.demon.co.uk/pubkey.asc. Men often believe -- or pretend -- that the "Law" is something sacred, or at least a science -- an unfounded assumption very convenient to governments.
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