MongoDBCDriver  0.7.1
md5.h
00001 /*
00002   Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
00003 
00004   This software is provided 'as-is', without any express or implied
00005   warranty.  In no event will the authors be held liable for any damages
00006   arising from the use of this software.
00007 
00008   Permission is granted to anyone to use this software for any purpose,
00009   including commercial applications, and to alter it and redistribute it
00010   freely, subject to the following restrictions:
00011 
00012   1. The origin of this software must not be misrepresented; you must not
00013      claim that you wrote the original software. If you use this software
00014      in a product, an acknowledgment in the product documentation would be
00015      appreciated but is not required.
00016   2. Altered source versions must be plainly marked as such, and must not be
00017      misrepresented as being the original software.
00018   3. This notice may not be removed or altered from any source distribution.
00019 
00020   L. Peter Deutsch
00021   ghost@aladdin.com
00022 
00023  */
00024 /* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
00025 /*
00026   Independent implementation of MD5 (RFC 1321).
00027 
00028   This code implements the MD5 Algorithm defined in RFC 1321, whose
00029   text is available at
00030     http://www.ietf.org/rfc/rfc1321.txt
00031   The code is derived from the text of the RFC, including the test suite
00032   (section A.5) but excluding the rest of Appendix A.  It does not include
00033   any code or documentation that is identified in the RFC as being
00034   copyrighted.
00035 
00036   The original and principal author of md5.h is L. Peter Deutsch
00037   <ghost@aladdin.com>.  Other authors are noted in the change history
00038   that follows (in reverse chronological order):
00039 
00040   2002-04-13 lpd Removed support for non-ANSI compilers; removed
00041     references to Ghostscript; clarified derivation from RFC 1321;
00042     now handles byte order either statically or dynamically.
00043   1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
00044   1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
00045     added conditionalization for C++ compilation from Martin
00046     Purschke <purschke@bnl.gov>.
00047   1999-05-03 lpd Original version.
00048  */
00049 
00050 #ifndef MONGO_MD5_H_
00051 #define MONGO_MD5_H_
00052 
00053 /*
00054  * This package supports both compile-time and run-time determination of CPU
00055  * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
00056  * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
00057  * defined as non-zero, the code will be compiled to run only on big-endian
00058  * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
00059  * run on either big- or little-endian CPUs, but will run slightly less
00060  * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
00061  */
00062 #include "bson.h"
00063 
00064 typedef unsigned char mongo_md5_byte_t; /* 8-bit byte */
00065 typedef unsigned int mongo_md5_word_t; /* 32-bit word */
00066 
00067 /* Define the state of the MD5 Algorithm. */
00068 typedef struct mongo_md5_state_s {
00069     mongo_md5_word_t count[2];  /* message length in bits, lsw first */
00070     mongo_md5_word_t abcd[4];       /* digest buffer */
00071     mongo_md5_byte_t buf[64];       /* accumulate block */
00072 } mongo_md5_state_t;
00073 
00074 #ifdef __cplusplus
00075 extern "C"
00076 {
00077 #endif
00078 
00079     /* Initialize the algorithm. */
00080     MONGO_EXPORT void mongo_md5_init(mongo_md5_state_t *pms);
00081 
00082     /* Append a string to the message. */
00083     MONGO_EXPORT void mongo_md5_append(mongo_md5_state_t *pms, const mongo_md5_byte_t *data, int nbytes);
00084 
00085     /* Finish the message and return the digest. */
00086     MONGO_EXPORT void mongo_md5_finish(mongo_md5_state_t *pms, mongo_md5_byte_t digest[16]);
00087 
00088 #ifdef __cplusplus
00089 }  /* end extern "C" */
00090 #endif
00091 
00092 #endif /* MONGO_MD5_H_ */