PFOREGND
np->p_flags |= PFOREGND;
np->p_flags &= ~PFOREGND;
pp->p_flags &= ~PFOREGND;
if (pp->p_flags & PFOREGND)
if (jobflags&PFOREGND) {
if ((fp->p_flags&(PFOREGND|PRUNNING)) == PRUNNING)
pp->p_flags = t->t_dflg & FAND ? PRUNNING : PRUNNING|PFOREGND;
if (pcurrjob && (pcurrjob->p_flags&(PFOREGND|PSTOPPED)) == 0) {