_exec_files_XY_all
res = _exec_files_XY_all(be, argp, getby_flag);
res = _exec_files_XY_all(be, argp, NSS_DBOP_EXECATTR_BYNAME);
res = _exec_files_XY_all(be, argp, NSS_DBOP_EXECATTR_BYID);
res = _exec_files_XY_all(be, argp, NSS_DBOP_EXECATTR_BYNAMEID);