The core of server functionality is in wrs-ipcserver.c, which
basically consists of a porting of PTPWRd/ptpd_exports.[ch], as they are
seen in commit 080d54fb of the repository:
git://ohwr.org/white-rabbit/ppsi/ptp-noposix.git

Two notes:
- this implementation, like the one I'm porting from, does not make use
of minipc_server_get_fdset, which would make the minipc_server_action
be called only when necessary (by means of a select); indeed,
minipc_server_action is called at each cycle in the main loop;
- the server is created by using "ptpd" as its mnemonic name, for
compatibility with ptp-noposix.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>