-int CtdlTryUserLDAP(char *username, char *found_dn, int found_dn_size, char *fullname, int fullname_size, uid_t *found_uid);
+int CtdlTryUserLDAP(char *username, char *found_dn, int found_dn_size, char *fullname, int fullname_size, uid_t *found_uid, int lookup_based_on_uid);