des_key_sched
des_key_sched(&fbp->krbdes_key, fbp->krbdes_sched);
des_key_sched(&stp->str_ikey, stp->str_sched);
des_key_sched(key, stp->str_sched);
des_key_sched(key, k);
des_key_sched(key, k);
int des_key_sched(des_cblock *, des_key_schedule);
error = des_key_sched(block, cp->cp_key1);
error |= des_key_sched(block + 1, cp->cp_key2);
error |= des_key_sched(block + 2, cp->cp_key3);