Symbol: ptcopen
sys/kern/kern_pledge.c
1277
cdevsw[major(vp->v_rdev)].d_open == ptcopen)
sys/kern/tty_pty.c
399
int ptcopen(dev_t, int, int, struct proc *);
sys/kern/tty_pty.c
819
} else if (cdevsw[major(dev)].d_open == ptcopen)