cs_merge_event_masks
static unsigned cs_merge_event_masks(cs_socket_t *, client_t *);
(void) cs_set_socket_event_mask(sp, cs_merge_event_masks(sp, client));
(void) cs_set_socket_event_mask(sp, cs_merge_event_masks(sp, client));
(void) cs_set_socket_event_mask(sp, cs_merge_event_masks(sp, client));
set_socket.SCIntMask = cs_merge_event_masks(sp, client);
set_socket.SCIntMask = cs_merge_event_masks(sp, client);