Public bug reported:
Previously reported here: https://github.com/apple/cups/issues/4997
The issue is that the 'lp' command does not check input syntax. Commands
such as:
lp -o blah foo.pdf
lp -o page-range=5-6 foo.pdf
lp -o page-ranges=8- foo.pdf
will print the whole "foo.pdf" without alerting the user that he made an
error with the LP command line syntax.
This omission is likely due to the complex nature of Cups - many command
line clients for many operating systems, passing directives to a server
which also has web interfaces and maybe GUIs, which then passes the job
to one of thousands of different printer drivers. However, unlike with
other Unix commands, an error on the 'lp' command line can waste a good
deal of time and money - with many modern PDF documentation files
running into the hundreds or thousands of pages. Cups and the 'lp'
command should make sure that it understands exactly what the user is
requesting before it proceeds with a print job.
I've been asked to submit this bug here because apparently it is a
problem with the cups-filters package. However, it seems possible that
there may need to be some kind of collaboration between developers of
different components, for example to ensure that the Cups server
protocol can adequately report option syntax errors to the various Cups
clients.
** Affects: cups-filters (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1689948
Title:
cups 'lp' command does no validation on input options
Status in cups-filters package in Ubuntu:
New
Bug description:
Previously reported here: https://github.com/apple/cups/issues/4997
The issue is that the 'lp' command does not check input syntax.
Commands such as:
lp -o blah foo.pdf
lp -o page-range=5-6 foo.pdf
lp -o page-ranges=8- foo.pdf
will print the whole "foo.pdf" without alerting the user that he made
an error with the LP command line syntax.
This omission is likely due to the complex nature of Cups - many
command line clients for many operating systems, passing directives to
a server which also has web interfaces and maybe GUIs, which then
passes the job to one of thousands of different printer drivers.
However, unlike with other Unix commands, an error on the 'lp' command
line can waste a good deal of time and money - with many modern PDF
documentation files running into the hundreds or thousands of pages.
Cups and the 'lp' command should make sure that it understands exactly
what the user is requesting before it proceeds with a print job.
I've been asked to submit this bug here because apparently it is a
problem with the cups-filters package. However, it seems possible that
there may need to be some kind of collaboration between developers of
different components, for example to ensure that the Cups server
protocol can adequately report option syntax errors to the various
Cups clients.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1689948/+subscriptions
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