[cups] CUPS not sending correct user name

[Florian Lindner]

Am 04.06.2014 13:28, schrieb Helge Blischke:
> Looking into the sources (cups/usersys.c) reveals that to evaluate the
>  user name
> to use the USER environment variable is checked first. The "User foo"  
> directive
> in client.conf is only taken into account if the USER environment  
> variable
> is not set or does not match the current UID. So you need, I think, to
> undefine (or set to empty) the USER environment variable prior to  
> executing
> a print command.

Thanks for your reply!

That is real weird to my understanding. $USER is almost universally set 
and unsetting it can be problematic. I took a look at the source file 
you mentioned and noticed it checks the environment variable CUPS_USER 
first, (line 855 of current 1.7 branch). Setting this variable does the 
trick and printing works now!

So, thanks a lot!

Florian

> 
> Helge
> Am 04.06.2014 um 12:32 schrieb Florian Lindner:
> 
>> Hello,
>> 
>> Dare to do a slightly updated repost.
>> 
>> I use cups 1.7.3 on arch linux. My local username is florian and  
>> printers are successfully discovered using cups-browsed and avahi.  My 
>> username that is permitted to print is lindnefn. User in  client.conf 
>> is set.
>> 
>> florian at asaru ~ % cat /etc/cups/client.conf
>> # see 'man client.conf'
>> ServerName /var/run/cups/cups.sock #  alternative: ServerName  
>> hostname-or-ip-address[:port] of a remote server
>> User lindnefn
>> 
>> florian at asaru ~ % cat ~/.cups/client.conf
>> User lindnefn
>> 
>> If I go the cups webinterface on localhost it displays florian as  
>> user name on the queue. My print jobs are permission denied from the  
>> remote cups server. Printing on non restricted printers works.
>> 
>> What could be wrong here?
>> 
>> Thanks,
>> Florian
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> 
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