397 	int master;  member
407 	if (openpty(&info->master, &info->slave, NULL, NULL, NULL))  in openpty_cb()
411 static int async_pty(int master, int slave)  in async_pty()  argument
415 	flags = fcntl(master, F_GETFL);  in async_pty()
419 	if ((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) ||  in async_pty()
420 	    (fcntl(master, F_SETOWN, os_getpid()) < 0))  in async_pty()
432 	struct openpty_arg pty = { .master = -1, .slave = -1 };  in check_one_sigio()
433 	int master, slave, err;  in check_one_sigio()  local
442 	master = pty.master;  in check_one_sigio()
445 	if ((master == -1) || (slave == -1)) {  in check_one_sigio()
452 	err = raw(master);  in check_one_sigio()
459 	err = async_pty(master, slave);  in check_one_sigio()
481 	(*proc)(master, slave);  in check_one_sigio()
483 	close(master);  in check_one_sigio()
491 static void tty_output(int master, int slave)  in tty_output()  argument
500 	while (write(master, buf, sizeof(buf)) > 0) ;  in tty_output()
517 static void tty_close(int master, int slave)  in tty_close()  argument