AR_B
bsdar->options |= AR_B;
if (bsdar->options & AR_A && bsdar->options & AR_B)
if (bsdar->options & (AR_A | AR_B)) {
if (bsdar->options & AR_B)
if (bsdar->options & AR_B) {
if (bsdar->options & AR_A || bsdar->options & AR_B) {
bsdar->options &= ~(AR_A | AR_B);