AUTOFS_DOOR
if ((dfd = open(AUTOFS_DOOR, O_RDWR|O_CREAT|O_TRUNC,
syslog(LOG_ERR, "Unable to open %s: %m\n", AUTOFS_DOOR);
(void) fdetach(AUTOFS_DOOR);
if (fattach(doorfd, AUTOFS_DOOR) == -1) {
syslog(LOG_ERR, "Unable to fattach door %m\n", AUTOFS_DOOR);