Switch to a leaner MD5 library

[odhcp6c.git] / src / md5.h

diff --git a/src/md5.h b/src/md5.h
index 698c995d8f4e9d98766d568fe88863381f94d16f..096fa4128b39d43c36f68bc0aea5c2909f9eda97 100644 (file)
--- a/src/md5.h
+++ b/src/md5.h
@@ -1,91 +1,16 @@
-/*
-  Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
-
-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
-
-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
-
-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
-
-  L. Peter Deutsch
-  ghost@aladdin.com
-
- */
-/* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
-/*
-  Independent implementation of MD5 (RFC 1321).
-
-  This code implements the MD5 Algorithm defined in RFC 1321, whose
-  text is available at
-       http://www.ietf.org/rfc/rfc1321.txt
-  The code is derived from the text of the RFC, including the test suite
-  (section A.5) but excluding the rest of Appendix A.  It does not include
-  any code or documentation that is identified in the RFC as being
-  copyrighted.
-
-  The original and principal author of md5.h is L. Peter Deutsch
-  <ghost@aladdin.com>.  Other authors are noted in the change history
-  that follows (in reverse chronological order):
-
-  2002-04-13 lpd Removed support for non-ANSI compilers; removed
-       references to Ghostscript; clarified derivation from RFC 1321;
-       now handles byte order either statically or dynamically.
-  1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
-  1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
-       added conditionalization for C++ compilation from Martin
-       Purschke <purschke@bnl.gov>.
-  1999-05-03 lpd Original version.
- */
-
-#ifndef md5_INCLUDED
-#  define md5_INCLUDED
-
-/*
- * This package supports both compile-time and run-time determination of CPU
- * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
- * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
- * defined as non-zero, the code will be compiled to run only on big-endian
- * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
- * run on either big- or little-endian CPUs, but will run slightly less
- * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
- */
-
-typedef unsigned char md5_byte_t; /* 8-bit byte */
-typedef unsigned int md5_word_t; /* 32-bit word */
-
-/* Define the state of the MD5 Algorithm. */
-typedef struct md5_state_s {
-    md5_word_t count[2];       /* message length in bits, lsw first */
-    md5_word_t abcd[4];                /* digest buffer */
-    md5_byte_t buf[64];                /* accumulate block */
-} md5_state_t;
-
-#ifdef __cplusplus
-extern "C" 
-{
-#endif
-
-/* Initialize the algorithm. */
-void md5_init(md5_state_t *pms);
-
-/* Append a string to the message. */
-void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
-
-/* Finish the message and return the digest. */
-void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
-
-#ifdef __cplusplus
-}  /* end extern "C" */
-#endif
-
-#endif /* md5_INCLUDED */
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct md5_ctx {
+       uint32_t A;
+       uint32_t B;
+       uint32_t C;
+       uint32_t D;
+       uint64_t total;
+       uint32_t buflen;
+       char buffer[128];
+} md5_ctx_t;
+
+void md5_begin(md5_ctx_t *ctx);
+void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
+void md5_end(void *resbuf, md5_ctx_t *ctx);