ret_principal_xdr
CHECK(ret_principal_xdr(contextp, sp, &ent->principal));
ret_principal_xdr(contextp, sp, &ent->mod_name);
CHECK(ret_principal_xdr(contextp->context, in, &princ));
CHECK(ret_principal_xdr(contextp->context, in, &princ));
CHECK(ret_principal_xdr(contextp->context, in, &princ));