TTY_SECURE
tty.ty_status |= TTY_SECURE;
(ty->ty_status & TTY_SECURE) != 0)
return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
& TTY_SECURE) == 0) && pp && *pp->pw_passwd != '\0') {
return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);