Add crc32 and md5 to test lib

libsdl-org · Nov 29, 2012 · 4a744e7 · 4a744e7
1 parent 5faee44
commit 4a744e7
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Showing 6 changed files with 775 additions and 13 deletions.
diff --git a/include/SDL_test.h b/include/SDL_test.h
@@ -20,20 +20,22 @@
 */
 
 /**
- *  \file SDLTest.h
+ *  \file SDL_test.h
  *  
  *  Include file for SDL test framework.
  *
  *  This code is a part of the SDL2_test library, not the main SDL library.
  */
 
-#ifndef _SDLTest_h
-#define _SDLTest_h
+#ifndef _SDL_test_h
+#define _SDL_test_h
 
 #include "SDL.h"
 #include "SDL_test_font.h"
 #include "SDL_test_random.h"
 #include "SDL_test_fuzzer.h"
+#include "SDL_test_crc32.h"
+#include "SDL_test_md5.h"
 
 #include "begin_code.h"
 /* Set up for C function definitions, even when using C++ */
@@ -55,6 +57,6 @@ extern "C" {
 #endif
 #include "close_code.h"
 
-#endif /* _SDLTest_h */
+#endif /* _SDL_test_h */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/include/SDL_test_crc32.h b/include/SDL_test_crc32.h
@@ -0,0 +1,128 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
+
+  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.
+*/
+
+/**
+ *  \file SDL_test_crc32.h
+ *  
+ *  Include file for SDL test framework.
+ *
+ *  This code is a part of the SDL2_test library, not the main SDL library.
+ */
+
+/* 
+
+ Implements CRC32 calculations (default output is Perl String::CRC32 compatible).
+  
+*/
+
+#ifndef _SDL_test_crc32_h
+#define _SDL_test_crc32_h
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+
+/* ------------ Definitions --------- */
+
+/* Definition shared by all CRC routines */
+
+#ifndef CrcUint32
+ #define CrcUint32	unsigned int
+#endif
+#ifndef CrcUint8
+ #define CrcUint8	unsigned char
+#endif
+
+#ifdef ORIGINAL_METHOD
+ #define CRC32_POLY 0x04c11db7 	 /* AUTODIN II, Ethernet, & FDDI */
+#else
+ #define CRC32_POLY 0xEDB88320   /* Perl String::CRC32 compatible */
+#endif
+
+/** 
+ * Data structure for CRC32 (checksum) computation 
+ */
+  typedef struct {
+    CrcUint32    crc32_table[256]; /* CRC table */
+  } SDLTest_Crc32Context;
+
+/* ---------- Function Prototypes ------------- */
+
+/** 
+ * /brief Initialize the CRC context
+ *
+ * Note: The function initializes the crc table required for all crc calculations.
+ *
+ * /param crcContext		pointer to context variable
+ *
+ * /returns 0 for OK, -1 on error
+ *
+ */
+ int SDLTest_Crc32Init(SDLTest_Crc32Context * crcContext);
+
+
+/**
+ * /brief calculate a crc32 from a data block
+ * 
+ * /param crcContext	     pointer to context variable
+ * /param inBuf              input buffer to checksum
+ * /param inLen              length of input buffer
+ * /param crc32              pointer to Uint32 to store the final CRC into
+ *
+ * /returns 0 for OK, -1 on error
+ *
+ */
+int SDLTest_crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
+
+/* Same routine broken down into three steps */
+int SDLTest_Crc32CalcStart(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32);
+int SDLTest_Crc32CalcEnd(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32);
+int SDLTest_Crc32CalcBuffer(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
+
+
+/**
+ * /brief clean up CRC context
+ *
+ * /param crcContext		pointer to context variable
+ *
+ * /returns 0 for OK, -1 on error
+ *
+*/
+
+int SDLTest_Crc32Done(SDLTest_Crc32Context * crcContext);
+
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_test_crc32_h */
+
+/* vi: set ts=4 sw=4 expandtab: */
diff --git a/include/SDL_test_md5.h b/include/SDL_test_md5.h
@@ -0,0 +1,133 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
+
+  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.
+*/
+
+/**
+ *  \file SDL_test_md5.h
+ *  
+ *  Include file for SDL test framework.
+ *
+ *  This code is a part of the SDL2_test library, not the main SDL library.
+ */
+
+/*
+ ***********************************************************************
+ ** Header file for implementation of MD5                             **
+ ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
+ ** Created: 2/17/90 RLR                                              **
+ ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
+ ** Revised (for MD5): RLR 4/27/91                                    **
+ **   -- G modified to have y&~z instead of y&z                       **
+ **   -- FF, GG, HH modified to add in last register done             **
+ **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
+ **   -- distinct additive constant for each step                     **
+ **   -- round 4 added, working mod 7                                 **
+ ***********************************************************************
+*/
+
+/*
+ ***********************************************************************
+ **  Message-digest routines:                                         **
+ **  To form the message digest for a message M                       **
+ **    (1) Initialize a context buffer mdContext using MD5Init        **
+ **    (2) Call MD5Update on mdContext and M                          **
+ **    (3) Call MD5Final on mdContext                                 **
+ **  The message digest is now in mdContext->digest[0...15]           **
+ ***********************************************************************
+*/
+
+#ifndef _SDL_test_md5_h
+#define _SDL_test_md5_h
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+/* ------------ Definitions --------- */
+
+/* typedef a 32-bit type */
+  typedef unsigned long int MD5UINT4;
+
+/* Data structure for MD5 (Message-Digest) computation */
+  typedef struct {
+    MD5UINT4  i[2];		/* number of _bits_ handled mod 2^64 */
+    MD5UINT4  buf[4];		/* scratch buffer */
+    unsigned char in[64];	/* input buffer */
+    unsigned char digest[16];	/* actual digest after Md5Final call */
+  } SDLTest_Md5Context;
+
+/* ---------- Function Prototypes ------------- */
+
+/** 
+ * /brief initialize the context
+ *
+ * /param  mdContext		pointer to context variable
+ *
+ * Note: The function initializes the message-digest context
+ *       mdContext. Call before each new use of the context - 
+ *       all fields are set to zero.
+ */
+ void SDLTest_Md5Init(SDLTest_Md5Context * mdContext);
+
+
+/**
+ * /brief update digest from variable length data
+ * 
+ * /param  mdContext       pointer to context variable
+ * /param  inBuf           pointer to data array/string
+ * /param  inLen           length of data array/string
+ *
+ * Note: The function updates the message-digest context to account 
+ *       for the presence of each of the characters inBuf[0..inLen-1]
+ *       in the message whose digest is being computed.
+*/
+
+ void SDLTest_Md5Update(SDLTest_Md5Context * mdContext, unsigned char *inBuf,
+				 unsigned int inLen);
+
+
+/*
+ * /brief complete digest computation
+ *
+ * /param mdContext		pointer to context variable
+ *
+ * Note: The function terminates the message-digest computation and
+ *       ends with the desired message digest in mdContext.digest[0..15].
+ *       Always call before using the digest[] variable.
+*/
+
+ void SDLTest_Md5Final(SDLTest_Md5Context * mdContext);
+
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_test_md5_h */
+
+/* vi: set ts=4 sw=4 expandtab: */
diff --git a/include/SDL_test_random.h b/include/SDL_test_random.h
@@ -48,10 +48,7 @@ extern "C" {
 /* *INDENT-ON* */
 #endif
 
-/* Function prototypes */
-
-
-/* ------- Definitions ------- */
+/* --- Definitions */
 
 /*
  * Macros that return a random number in a specific format.
@@ -69,13 +66,14 @@ extern "C" {
     unsigned int al;
   } SDLTest_RandomContext;
 
-/* ---- Function Prototypes -------- */
+
+/* --- Function prototypes */
 
 /**
  *  \brief Initialize random number generator with two integers. 
  *
- * Note: The random sequence of numbers returned by ...Random() is the
- *       same for the same two integers and has a period of 2^31.
+ *  Note: The random sequence of numbers returned by ...Random() is the
+ *  same for the same two integers and has a period of 2^31.
  *
  *  \param rndContext     pointer to context structure
  *  \param xi         integer that defines the random sequence
@@ -97,8 +95,8 @@ extern "C" {
 /**
  *  \brief Initialize random number generator based on current system time. 
  *
- * Note: ...RandomInit() or ...RandomInitTime() must have been called
- *       before using this function.
+ *  Note: ...RandomInit() or ...RandomInitTime() must have been called
+ *  before using this function.
  *
  *  \param rndContext     pointer to context structure
  *