Cups 1.7.2 + Avahi Workaround -- Was: svn portdowngrade

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On Jun 11, 2014, at 8:05 PM, Erich Dollansky =
<[e-mail]> wrote:

> Hi,
>=20
> On Wed, 11 Jun 2014 19:59:33 +0200
> Willy Offermans <[e-mail]> wrote:
>=20
>> On Wed, Jun 11, 2014 at 04:56:51PM +0200, Andrea Venturoli wrote:
>>> On 06/11/14 16:13, Willy Offermans wrote:
>>>> Dear FreeBSD friends,
>>>>=20
>>>> I use svn update /usr/ports to keep my ports collection up to date.
>>>>=20
>>>> Now, I have an issue with cups 1.7.2 and I like to downgrade to
>>>> version 1.5.4. There is a port called portdowngrade.  Shall I use
>>>> this to downgrade cups to 1.5.4, or is there another (advisable)
>>>> way?
>>>=20


Thats a four year old bug. The upshot is that Cups 1.7.2 cannot =
_automatically_ advertise printers with Avahi. I cannot infer much from =
the bug ticket but if I had to guess I'd say that the problem is lodged =
in the Political rather than the Software Engineering levels.=20

One option here is to downgrade cups back to 1.5.x. Another is to =
workaround the issue with a manual service file for each your printers. =
In my case this was easy solution since I'm only advertising a pair of =
printers. If you have to do this for 1000 printers my solution doesn't =
scale.

I basically put this into:

     /usr/local/etc/avahi/services/hp-4000.service

*** Contents ***

<?xml version=3D"1.0" standalone=3D'no'?>
 <!DOCTYPE service-group SYSTEM "avahi-service.dtd">
 <service-group>
   <name replace-wildcards=3D"yes">Hewlett Packard LaserJet 4000 =
(%h)</name>
   <service>
     <type>_ipp._tcp</type>
     <subtype>_universal._sub._ipp._tcp</subtype>
     <port>631</port>
     <txt-record>txtver=3D1</txt-record>
     <txt-record>qtotal=3D1</txt-record>
     <txt-record>rp=3Dprinters/hp-4000</txt-record>
     <txt-record>ty=3Dhp-4000</txt-record>
     =
<txt-record>adminurl=3Dhttp://10.0.x.1:631/printers/hp-4000</txt-record>
     <txt-record>note=3DSecond Floor Printer Closet</txt-record>
     <txt-record>priority=3D0</txt-record>
     <txt-record>product=3Dvirtual Printer</txt-record>
     <txt-record>printer-state=3D3</txt-record>
     <txt-record>printer-type=3D0x801046</txt-record>
     <txt-record>Transparent=3DT</txt-record>
     <txt-record>Binary=3DT</txt-record>
     <txt-record>Fax=3DF</txt-record>
     <txt-record>Color=3DF</txt-record>
     <txt-record>Duplex=3DT</txt-record>
     <txt-record>Staple=3DF</txt-record>
     <txt-record>Copies=3DT</txt-record>
     <txt-record>Collate=3DF</txt-record>
     <txt-record>Punch=3DF</txt-record>
     <txt-record>Bind=3DF</txt-record>
     <txt-record>Sort=3DF</txt-record>
     <txt-record>Scan=3DF</txt-record>
     =
<txt-record>pdl=3Dapplication/octet-stream,application/pdf,application/pos=
tscript,image/jpeg,image/png,image/urf</txt-record>
     <txt-record>URF=3DW8,SRGB24,CP1,RS600</txt-record>
   </service>
 </service-group>

To advertise my HP LaserJet 4000TN cups attached printer via Bonjour. My =
Mac's can all print to the devices.

Hope this is helpful.

-- Chris



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