Symbol: TTY_SECURE
lib/libc/gen/getttyent.c
105
tty.ty_status |= TTY_SECURE;
sbin/init/init.c
530
if (typ && (typ->ty_status & TTY_SECURE) == 0 && pp &&
usr.bin/login/login.c
791
return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);