fr_secbits
fr->fr_secbits &= ~secmsk;
fr->fr_secbits |= secmsk;
fp->fr_secbits || fp->fr_secmask)) {
fp->fr_secbits || fp->fr_secmask) {
sec[1] = fp->fr_secbits;
(fr1->fr_secbits == fr->fr_secbits)) {
fr->fr_secbits);