1 files changed, 69 insertions, 0 deletions
diff --git a/ldap/servers/plugins/pwdstorage/pwd_util.c b/ldap/servers/plugins/pwdstorage/pwd_util.c
new file mode 100644
index 00000000..c7b4fdad
--- /dev/null
+++ b/ldap/servers/plugins/pwdstorage/pwd_util.c
@@ -0,0 +1,69 @@
+/** BEGIN COPYRIGHT BLOCK
+ * This Program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; version 2 of the License.
+ * 
+ * This Program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along with
+ * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA.
+ * 
+ * In addition, as a special exception, Red Hat, Inc. gives You the additional
+ * right to link the code of this Program with code not covered under the GNU
+ * General Public License ("Non-GPL Code") and to distribute linked combinations
+ * including the two, subject to the limitations in this paragraph. Non-GPL Code
+ * permitted under this exception must only link to the code of this Program
+ * through those well defined interfaces identified in the file named EXCEPTION
+ * found in the source code files (the "Approved Interfaces"). The files of
+ * Non-GPL Code may instantiate templates or use macros or inline functions from
+ * the Approved Interfaces without causing the resulting work to be covered by
+ * the GNU General Public License. Only Red Hat, Inc. may make changes or
+ * additions to the list of Approved Interfaces. You must obey the GNU General
+ * Public License in all respects for all of the Program code and other code used
+ * in conjunction with the Program except the Non-GPL Code covered by this
+ * exception. If you modify this file, you may extend this exception to your
+ * version of the file, but you are not obligated to do so. If you do not wish to
+ * provide this exception without modification, you must delete this exception
+ * statement from your version and license this file solely under the GPL without
+ * exception. 
+ * 
+ * 
+ * Copyright (C) 2009 Red Hat, Inc.
+ * All rights reserved.
+ * END COPYRIGHT BLOCK **/
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h>
+#include "pwdstorage.h"
+
+/*
+ * Utility functions for the Password Storage Scheme plugins.
+ */
+
+/*
+ * calculate the number of bytes the base64 encoded encval
+ * will have when decoded, taking into account padding
+ */
+int
+pwdstorage_base64_decode_len(const char *encval)
+{
+    int len = strlen(encval);
+    if (len && (0 == (len & 3))) {
+        if('=' == encval[len - 1]) {
+            if('=' == encval[len - 2]) {
+                len -= 2;
+            } else {
+                len -= 1;
+            }
+        }
+    }
+
+    return ((len * 3) / 4);
+}
+