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Re: losetup -p & other oddities



Jari Ruusu wrote:
> Wrong! -p option reads password from _open_ file descriptor 26, where 0 is
> stdin, 1 is stdout, 2 is stderr, and so on. Pointing -p option to unopen fd
> is equivalent to empty password.
> 
> Maybe you intended to do something like this:
> 
> losetup -k 128 -p 3 -e serpent /dev/loop6 /dev/sdb2  3</path/to/some/file
>                ^^^^                                  ^^^^^^^^^^^^^^^^^^^^
> 

oh, well, --> what? who did such a thing to losetup? "reading from an 
open file descriptor", i guess it could not be made any more complicated.
hm, ok, now that i've got this it i found out that it was really set to 
an empty password. ouch!

the manpage of "losetup" said:

--pass-fd, -p num
   read the passphrase from file descriptor num instead of the terminal.

i was not familar to this "#</path/to/file" thing yet.

>>(undefined encryption?)
> 
> undefined == CryptoAPI

ah, ok.

Thank you very much for this quick response!

Christian.

> Regards,
> Jari Ruusu <jari.ruusu@pp.inet.fi>

actually, sb. told me in a newsgroup to go to "linux-crypto", Jari will 
help :-)  an he did! cool...

-- 
BOFH excuse #230:

Lusers learning curve appears to be fractal

-
Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/