1 files changed, 50 insertions, 0 deletions

diff --git a/src/lib/util/proc_compat.c b/src/lib/util/proc_compat.c
new file mode 100644
index 000000000..0423a0d5c
--- /dev/null
+++ b/src/lib/util/proc_compat.c
@@ -0,0 +1,50 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2001, 2002, 2003, 2004, 2005 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+
+
+/**
+ * @author Martin Schanzenbach
+ *
+ * @file util/proc_compat.c
+ * Definitions for macOS and Win32
+ */
+
+#include "platform.h"
+
+/**
+ * memrchr as defined in glibc
+ *
+ * @param s pointer to memory
+ * @param c character to search for
+ * @param n search character limit
+ */
+void*
+GN_memrchr_ (const void *s,
+             int c,
+             size_t n)
+{
+  const unsigned char *ucs = s;
+  ssize_t i;
+
+  for (i = n - 1; i >= 0; i--)
+    if (c == (int) ucs[i])
+      return (void *) &ucs[i];
+  return NULL;
+}