[Samba] Print server communications back to the client during printing

[Jeremy Allison]

On Mon, Oct 13, 2008 at 11:57:45AM -0400, Gerald (Jerry) Carter wrote:
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> Taylor, Marc wrote:
> > Hello All,
> > 
> > I was wondering if anyone knows why a print server needs to talk back on
> > the submitting client's ports 139 or 445?
> 
> It's Microsoft's async print change notification protocol.  Jeremy
> had talked about adding a separate timetou for the back channel connect,
> but I don't remember if this was ever done.

Like the man said, it's Microsoft's doing :-). No, we don't have
a separate timeout in spoolss_connect_to_client()
(rpc_server/srv_spoolss_nt.c) but we could add one.

Jeremy