Symbol: FD_CLOFORK
sys/kern/kern_descrip.c
462
| (fdp->fd_ofileflags[fd] & UF_FORKCLOSE ? FD_CLOFORK : 0);
sys/kern/kern_descrip.c
469
((long)SCARG(uap, arg) & FD_CLOFORK ? UF_FORKCLOSE : 0);