[cups-devel] [UNKN] STR #4764: allow setting of default user name from per instance options

[Vincent Danjean]

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[STR Unresolved]

Argh. I really do not understand to design to allow to choose a username
system-wide (/etc/client.conf) or account-wide ($HOME/.cups/client.conf)
but not per queue, unless you do not consider the use-case of a computer
(laptop) that connect to different environments.

I tried to dig into the code, but I did not see any easy way to turn
arround this problem. In my case, the backend is lpd that use the name from
the second parameter of its invocation. As the backend is launched by the
cups scheduler at the same time as the filters (connected by pipes), there
is no way a filter can 'update' the login name for the lpd backend. The
only 'trick' I can think of is that a filter add the modified username
(taken from a cups option and/or a ppd field) to its output and that a
wrapper lpd backend first read the name from the job that comes and invoke
the real backend with the user name modified...

I will perhaps try that if I fond the time to do it. But it will be
specific to my usecase, not something that can be integrated upstream.

Link: https://www.cups.org/str.php?L4764
Version: 2.1.2
Fix Version: None
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