allocids
if ((err = allocids(0, 8192, &uid, 0, &gid)) != 0) {
if ((err = allocids(0, 0, &uid, 8192, &gid)) != 0) {
if ((error = allocids(_idmapdstate.new_eph_db,
int allocids(int, int, uid_t *, int, gid_t *);
return (allocids(flag, nuids, ngids));