/* Generic ctype.h */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2009 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
#ifndef _AC_CTYPE_H
#define _AC_CTYPE_H
#include <ctype.h>
+#undef TOUPPER
+#undef TOLOWER
+
#ifdef C_UPPER_LOWER
# define TOUPPER(c) (islower(c) ? toupper(c) : (c))
-# define TOLOWER(c) (islower(c) ? toupper(c) : (c))
+# define TOLOWER(c) (isupper(c) ? tolower(c) : (c))
#else
# define TOUPPER(c) toupper(c)
# define TOLOWER(c) tolower(c)