[Pkg-cups-devel] Bug#503214: cups: neither root privileges nor lpadmin membership is enough to install printer

[Chanoch (Ken) Bloom]

> > > I have also noticed that a lot of files from the packages have
> > > permission 600 now:
> > > 
> > > $ ls -al /usr/lib/cups/backend/ipp
> > > -rwx------ 3 root root 25K 11. Okt 12:59 /usr/lib/cups/backend/ipp
> > 
> > This is nothing new, but an unfortunate design of cups.
> 
> To make things worse, there does not seem to be a package owning the
> following files under /usr/lib/cups/backend: dnssd, http, ipp, lpd,
> parallel, scsi, serial, snmp, socket and usb.

This is because those files are hard links to corresponding files in
/usr/lib/cups/backend-available. They are managed by cups's postinst
and prerm, and the exact determination if which backends are used is
managed by a debconf question.

--Ken

-- 
Chanoch (Ken) Bloom. PhD candidate. Linguistic Cognition Laboratory.
Department of Computer Science. Illinois Institute of Technology.
http://www.iit.edu/~kbloom1/
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