/* Copyright (c) The Exim Maintainers 2021 - 2022 */
/* Copyright (c) University of Cambridge 1995 - 2009 */
/* See the file NOTICE for conditions of use and distribution. */
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Code for the filter test function. */
*/
BOOL
-filter_runtest(int fd, uschar *filename, BOOL is_system, BOOL dot_ended)
+filter_runtest(int fd, const uschar * filename, BOOL is_system, BOOL dot_ended)
{
int rc, filter_type;
BOOL yield;