[cups.bugs] problem with lpd reserve=on option

[Anonymous]

Hi Liam

Have you added the IP or hostname of the new Gentoo PC to the /etc/hosts.lpd file on the server running LPD?

Or is the network printer connected directly to the LAN? in which case ignore this!

Why would the CUPS people deliberately choose the default of reserve=no for this setting?????????? It had me stuffed for hours....

Garth

Liam Routt wrote:
> Perhaps someone can shed some light on this for me:
>
> I'm setting up a new Gentoo system (x86). I've installed (emerge'd in
> gentoo land) cups-1.1.20-r1
>
> I am not providing a printer, I simply need to access a network printer
> in our department which is provided using lpd. I know from previous
> experience (I have had cups happily running on the machine next to this
> new one for some years) that the department lpd setup requires traffic
> to originate from the special low ports. So I use the following URI:
>
>    lpd://printhost/printername?reserve=yes
>
> (with the printhost and printername I need). I copy this line exactly
> from my other system (a Fedora Core system, with cups-1.1.19-13).
>
> When it does not work, I set "LogLevel debug" and see the following in
> the logged output:
>
>    Connected on ports 515 (local 732)...
>
> then a few lines later:
>
>    lpd_command returning 109
>    PID xxxxxx stopped with status 1!
>   ....
>    StopJob: printer state is 5
>
> The printer ends up stopped, and will not restart (as it tries to
> resubmit the job, unsuccessfully).
>
> I've tried setting "reserve=no", in which case I get:
>
>    Connected on ports 515 (local 0)...
>   ....
>    lpd_command returning 47
>    CancelJob: id=n
>   ....
>    StopJob: printer state is 3
>    PID xxxxxx stopped with status 1!
>
> In such cases cups doesn't complain, and the document disappears, but
> the printer never prints it.
>
> I did a search on the net and found some advice that the 109 return code
> might indicate that cupsd was not started by root, but I have checked
> that, and it seems to be fine.
>
>
> Now, from the cups system admin documentation, Appendix B, Configuring
> LPD Printing Options:
>
>   reserve=yes   Specifies that the backend should reserve a priviledges
>                 source port from 721 to 731 inclusive as required by RFC
>                 1179...
>
> That seems to indicate pretty clearly that the local port should not be
> 732, but at least one lower. It seems likely to me that this is causing
> my problem, but I cannot be certain.
>
> Is anyone able to shed some light on this? I currently have the system
> working, using a samba mount of the same printer, so it is not a stopper
> for me, but I'd like to work out what is wrong (and encourage a fix, if
> that necessary).
>
> Take care,
>
> Liam
> --
> Liam Routt                                          Ph: (03) 8344-1315
> Research Programmer                               caligari at cs.mu.oz.au
> Computer Science, Melbourne University              (or liam at routt.net)
>