debian/: Improve dyndns description a bit

[userv-utils.git] / ipif / mech-pkcs5.c

diff --git a/ipif/mech-pkcs5.c b/ipif/mech-pkcs5.c
index df4d91843b38e18cf57b7d4e5f91ab6022ea71fb..5116917746d560b23da3799671e88c0b5fd716b0 100644 (file)
--- a/ipif/mech-pkcs5.c
+++ b/ipif/mech-pkcs5.c
@@ -1,11 +1,35 @@
 /*
- * PKCS#5 padding
+ * PKCS#5 padding mechanism for udp tunnel
  *
- * arguments: block size to pad to, must be power of 2
+ * mechanism: pkcs5
+ * arguments: block size to pad to, must be power of 2 and <=128
  *
+ * restrictions: none
  * encoding: append between 1 and n bytes, all of the same value being
  *           the number of bytes appended
  */
+/*
+ * This file is part of ipif, part of userv-utils
+ *
+ * Copyright 1996-2013 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk>
+ * Copyright 1999,2003
+ *    Chancellor Masters and Scholars of the University of Cambridge
+ * Copyright 2010 Tony Finch <fanf@dotat.at>
+ *
+ * This 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; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 userv-utils; if not, see http://www.gnu.org/licenses/.
+ */
 
 #include "forwarder.h"