ipc_ids
if (error = ipc_ids(msq_svc, buf, nids, pnids))
return (ipc_ids(shm_svc, buf, nids, pnids));
int ipc_ids(ipc_service_t *, int *, uint_t, uint_t *);
if (error = ipc_ids(sem_svc, buf, nids, pnids))