SDL_test_md5.h

00001 /*
00002   Simple DirectMedia Layer
00003   Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
00004 
00005   This software is provided 'as-is', without any express or implied
00006   warranty.  In no event will the authors be held liable for any damages
00007   arising from the use of this software.
00008 
00009   Permission is granted to anyone to use this software for any purpose,
00010   including commercial applications, and to alter it and redistribute it
00011   freely, subject to the following restrictions:
00012 
00013   1. The origin of this software must not be misrepresented; you must not
00014      claim that you wrote the original software. If you use this software
00015      in a product, an acknowledgment in the product documentation would be
00016      appreciated but is not required.
00017   2. Altered source versions must be plainly marked as such, and must not be
00018      misrepresented as being the original software.
00019   3. This notice may not be removed or altered from any source distribution.
00020 */
00021 
00022 /**
00023  *  \file SDL_test_md5.h
00024  *
00025  *  Include file for SDL test framework.
00026  *
00027  *  This code is a part of the SDL2_test library, not the main SDL library.
00028  */
00029 
00030 /*
00031  ***********************************************************************
00032  ** Header file for implementation of MD5                             **
00033  ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
00034  ** Created: 2/17/90 RLR                                              **
00035  ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
00036  ** Revised (for MD5): RLR 4/27/91                                    **
00037  **   -- G modified to have y&~z instead of y&z                       **
00038  **   -- FF, GG, HH modified to add in last register done             **
00039  **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
00040  **   -- distinct additive constant for each step                     **
00041  **   -- round 4 added, working mod 7                                 **
00042  ***********************************************************************
00043 */
00044 
00045 /*
00046  ***********************************************************************
00047  **  Message-digest routines:                                         **
00048  **  To form the message digest for a message M                       **
00049  **    (1) Initialize a context buffer mdContext using MD5Init        **
00050  **    (2) Call MD5Update on mdContext and M                          **
00051  **    (3) Call MD5Final on mdContext                                 **
00052  **  The message digest is now in mdContext->digest[0...15]           **
00053  ***********************************************************************
00054 */
00055 
00056 #ifndef _SDL_test_md5_h
00057 #define _SDL_test_md5_h
00058 
00059 #include "begin_code.h"
00060 /* Set up for C function definitions, even when using C++ */
00061 #ifdef __cplusplus
00062 extern "C" {
00063 #endif
00064 
00065 /* ------------ Definitions --------- */
00066 
00067 /* typedef a 32-bit type */
00068   typedef unsigned long int MD5UINT4;
00069 
00070 /* Data structure for MD5 (Message-Digest) computation */
00071   typedef struct {
00072     MD5UINT4  i[2];     /* number of _bits_ handled mod 2^64 */
00073     MD5UINT4  buf[4];       /* scratch buffer */
00074     unsigned char in[64];   /* input buffer */
00075     unsigned char digest[16];   /* actual digest after Md5Final call */
00076   } SDLTest_Md5Context;
00077 
00078 /* ---------- Function Prototypes ------------- */
00079 
00080 /**
00081  * /brief initialize the context
00082  *
00083  * /param  mdContext        pointer to context variable
00084  *
00085  * Note: The function initializes the message-digest context
00086  *       mdContext. Call before each new use of the context -
00087  *       all fields are set to zero.
00088  */
00089  void SDLTest_Md5Init(SDLTest_Md5Context * mdContext);
00090 
00091 
00092 /**
00093  * /brief update digest from variable length data
00094  *
00095  * /param  mdContext       pointer to context variable
00096  * /param  inBuf           pointer to data array/string
00097  * /param  inLen           length of data array/string
00098  *
00099  * Note: The function updates the message-digest context to account
00100  *       for the presence of each of the characters inBuf[0..inLen-1]
00101  *       in the message whose digest is being computed.
00102 */
00103 
00104  void SDLTest_Md5Update(SDLTest_Md5Context * mdContext, unsigned char *inBuf,
00105                  unsigned int inLen);
00106 
00107 
00108 /*
00109  * /brief complete digest computation
00110  *
00111  * /param mdContext     pointer to context variable
00112  *
00113  * Note: The function terminates the message-digest computation and
00114  *       ends with the desired message digest in mdContext.digest[0..15].
00115  *       Always call before using the digest[] variable.
00116 */
00117 
00118  void SDLTest_Md5Final(SDLTest_Md5Context * mdContext);
00119 
00120 
00121 /* Ends C function definitions when using C++ */
00122 #ifdef __cplusplus
00123 }
00124 #endif
00125 #include "close_code.h"
00126 
00127 #endif /* _SDL_test_md5_h */
00128 
00129 /* vi: set ts=4 sw=4 expandtab: */