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