group_result
krb5_error_code group_result(krb5_context context, groupstate *gstate,
ret = group_result(context, gstate, ch->group, &wbytes, &clpriv,
ret = group_result(context, gstate, group, &wbytes, &kdcpriv,
check(group_result(ctx, gstate, t->group, &wbytes, x, S, &result));
check(group_result(ctx, gstate, t->group, &wbytes, y, T, &result));