src/external/tng_io/include/tng/md5.h

   1
   2 /* This file has been modified in the TNG library distribution. Modifications
   3  * are marked below. */
   4
   5 /*
   6   Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
   7
   8   This software is provided 'as-is', without any express or implied
   9   warranty.  In no event will the authors be held liable for any damages
  10   arising from the use of this software.
  11
  12   Permission is granted to anyone to use this software for any purpose,
  13   including commercial applications, and to alter it and redistribute it
  14   freely, subject to the following restrictions:
  15
  16   1. The origin of this software must not be misrepresented; you must not
  17      claim that you wrote the original software. If you use this software
  18      in a product, an acknowledgment in the product documentation would be
  19      appreciated but is not required.
  20   2. Altered source versions must be plainly marked as such, and must not be
  21      misrepresented as being the original software.
  22   3. This notice may not be removed or altered from any source distribution.
  23
  24   L. Peter Deutsch
  25   ghost@aladdin.com
  26
  27  */
  28 /*
  29   Independent implementation of MD5 (RFC 1321).
  30
  31   This code implements the MD5 Algorithm defined in RFC 1321, whose
  32   text is available at
  33         http://www.ietf.org/rfc/rfc1321.txt
  34   The code is derived from the text of the RFC, including the test suite
  35   (section A.5) but excluding the rest of Appendix A.  It does not include
  36   any code or documentation that is identified in the RFC as being
  37   copyrighted.
  38
  39   The original and principal author of md5.h is L. Peter Deutsch
  40   <ghost@aladdin.com>.  Other authors are noted in the change history
  41   that follows (in reverse chronological order):
  42
  43   2002-04-13 lpd Removed support for non-ANSI compilers; removed
  44         references to Ghostscript; clarified derivation from RFC 1321;
  45         now handles byte order either statically or dynamically.
  46   1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
  47   1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
  48         added conditionalization for C++ compilation from Martin
  49         Purschke <purschke@bnl.gov>.
  50   1999-05-03 lpd Original version.
  51  */
  52
  53 #ifndef md5_INCLUDED
  54 #  define md5_INCLUDED
  55
  56
  57 /*
  58  * This package supports both compile-time and run-time determination of CPU
  59  * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
  60  * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
  61  * defined as non-zero, the code will be compiled to run only on big-endian
  62  * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
  63  * run on either big- or little-endian CPUs, but will run slightly less
  64  * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
  65  */
  66
  67 typedef unsigned char md5_byte_t; /* 8-bit byte */
  68 typedef unsigned int md5_word_t; /* 32-bit word */
  69
  70 /* Define the state of the MD5 Algorithm. */
  71 typedef struct md5_state_s {
  72     md5_word_t count[2];        /* message length in bits, lsw first */
  73     md5_word_t abcd[4];         /* digest buffer */
  74     md5_byte_t buf[64];         /* accumulate block */
  75 } md5_state_t;
  76
  77 #ifdef __cplusplus
  78 extern "C"
  79 {
  80 #endif
  81
  82 /* The USE_WINDOWS define below was added in TNG library distribution of this
  83  * file in order to compile properly in MSVC */
  84 #ifndef USE_WINDOWS
  85 #if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
  86 #define USE_WINDOWS
  87 #endif /* win32... */
  88 #endif /* not defined USE_WINDOWS */
  89
  90 /* The DECLSPECDLLEXPORT define below was added in the TNG library distribution
  91  * of this file. It is also used in the function declarations. */
  92 #ifndef DECLSPECDLLEXPORT
  93 #ifdef USE_WINDOWS
  94 #define DECLSPECDLLEXPORT __declspec(dllexport)
  95 #else /* USE_WINDOWS */
  96 #define DECLSPECDLLEXPORT
  97 #endif /* USE_WINDOWS */
  98 #endif /* DECLSPECDLLEXPORT */
  99
 100 /* Initialize the algorithm. */
 101 void DECLSPECDLLEXPORT md5_init(md5_state_t *pms);
 102
 103 /* Append a string to the message. */
 104 void DECLSPECDLLEXPORT md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
 105
 106 /* Finish the message and return the digest. */
 107 void DECLSPECDLLEXPORT md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
 108
 109 #ifdef __cplusplus
 110 }  /* end extern "C" */
 111 #endif
 112
 113 #endif /* md5_INCLUDED */