void pty_make_controlling_tty(int *, const char *);
void pty_change_window_size(int, u_int, u_int, u_int, u_int);
void pty_setowner(struct passwd *, const char *);
void pty_make_controlling_tty(int *, const char *);
void pty_change_window_size(int, u_int, u_int, u_int, u_int);
void pty_setowner(struct passwd *, const char *);