[sane-devel] run saned on ephemeral port

[James Ring]

Hi all,

In developing jfreesane (pure Java client for saned,
https://github.com/sjamesr/jfreesane), I've found that it's useful to
run saned locally with a known configuration (e.g. 1 test device, 4
test devices, various test device configurations). This is complicated
by the fact that saned will only ever listen on sane-port as specified
in /etc/services, or 6566 if that entry is not present.

Would there be any interest in patching saned to accept a -p (port)
argument, which may be zero if an ephemeral port is desired? In the
ephemeral port case, the selected port is logged so the test may find
it.

I attached a proposed patch. What do you think?

Regards,
James
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