[sane-devel] permissions for parallel port scanners
Karl Heinz Kremer
Sun, 22 Jul 2001 05:51:59 -0400
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Parallel port scanners are a dying breed. As far as the
EPSON backend is concerned, I don't see any need to=20
update / modify the way the scanner is accessed.=20
If somebody is concerned about security, they should not
connect a par-port scanner. USB scanners are pretty inexpensive
these days, and they can be installed in a safe and portable
I will update the man page and list mention the drawbacks
of setuid-root programs, but I think that the mechanisms
of getting the frontends set up and maybe the sane-net work-
around should be documented on the project level and not
for the individual backends.
On Sun, Jul 22, 2001 at 03:37:22PM +0200, Oliver Rauch wrote:
> Now we have some parallel port scanners supported by
> sane and I get several messages with questions how
> the people can access their scanner as user.
> We need a better way to handle these scanners.
> It really is dangerous to run the frontends as
> root or with suid=3Droot.
> So I want to ask all authors of backends that support
> parallel port scanners to work out a common way
> (sanei_parallel_*) to talk as user to the scanner.
> These sanei_parallel_* routines should run on
> as much systems as possible (not only linux!).
> Please also add a text to the manpage of the
> backend how the scanner can be used by user
> and also point out how dangerous it is with
> An other way would be to connect via sane-net/saned
> to the local machine but as far as I tested that
> still does not work very well due to a bug in sane-net
> or saned.
> Homepage: http://www.rauch-domain.de
> sane-umax: http://www.rauch-domain.de/sane-umax
> xsane: http://www.xsane.org
> E-Mail: mailto:Oliver.Rauch@rauch-domain.de
> Sane-devel mailing list
Karl Heinz Kremer firstname.lastname@example.org
PGP Key at http://www.freecolormanagement.com/download/khk.asc
EPSON Sane Backend: http://www.freecolormanagement.com
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