Run Command library (librc, -lrc)
rc_plugin_hook(RC_HOOK hook, const char *name);
rc_plugin_hook() is called for each shareable object found in
/lib/rc/plugins. hook is set to the hook running, and name is set to the name of the runlevel or name of the service.
Plugins can affect the parent environment by writing NULL separated strings to rc_environ_fd.
Roy Marples <firstname.lastname@example.org>