diff --git a/crc32.h b/crc32.h
index cd1832f..a2fb584 100644
--- a/crc32.h
+++ b/crc32.h
@@ -1,21 +1,30 @@
-/*	$OpenBSD: crc32.h,v 1.13 2002/03/04 17:27:39 stevesk Exp $	*/
+/*	$OpenBSD: crc32.h,v 1.14 2003/02/12 21:39:50 markus Exp $	*/
 
 /*
- * Author: Tatu Ylonen <ylo@cs.hut.fi>
- * Copyright (c) 1992 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- *                    All rights reserved
- * Functions for computing 32-bit CRC.
+ * Copyright (c) 2003 Markus Friedl.  All rights reserved.
  *
- * As far as I am concerned, the code I have written for this software
- * can be used freely for any purpose.  Any derived versions of this
- * software must be clearly marked as such, and if the derived work is
- * incompatible with the protocol description in the RFC file, it must be
- * called by a name other than "ssh" or "Secure Shell".
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef CRC32_H
-#define CRC32_H
-
-u_int	 ssh_crc32(const u_char *, u_int);
-
-#endif				/* CRC32_H */
+#ifndef SSH_CRC32_H
+#define SSH_CRC32_H
+u_int32_t	 ssh_crc32(const u_char *, u_int32_t);
+#endif