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diff --git a/CMakeLists.txt b/CMakeLists.txt
index 209f6bf..ab94461 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,154 +1,147 @@
Project (meandmyshadow)
CMake_Minimum_Required (VERSION 2.6)
Set (CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
#Option if the game should be compiled with hardware acceleration.
Option (HARDWARE_ACCELERATION "Use openGL as rendering backend" ON)
Option (DEBUG_MODE "Compile the game with debug mode enabled" OFF)
#Use openGL only when compiling with HARDWARE_ACCELERATION.
#Otherwise we try to find XLib.
if (HARDWARE_ACCELERATION)
Find_Package (OpenGL REQUIRED)
else (HARDWARE_ACCELERATION)
Include (FindX11)
endif (HARDWARE_ACCELERATION)
#Find the required libraries.
Find_Package (SDL REQUIRED)
Find_Package (SDL_gfx REQUIRED)
Find_Package (SDL_image REQUIRED)
Find_Package (SDL_ttf REQUIRED)
Find_Package (SDL_mixer REQUIRED)
-Find_Package (OpenSSL REQUIRED)
Find_Package (CURL REQUIRED)
Find_Package (LibArchive REQUIRED)
Find_Package (Lua51 REQUIRED)
if (HARDWARE_ACCELERATION AND NOT OPENGL_FOUND)
message (FATAL_ERROR "OpenGL library could not be found!")
elseif (NOT HARDWARE_ACCELERATION AND NOT X11_FOUND)
message (FATAL_ERROR "X11 library could not be found!")
endif (HARDWARE_ACCELERATION AND NOT OPENGL_FOUND)
if (NOT SDL_FOUND)
message (FATAL_ERROR "SDL library could not be found!")
endif (NOT SDL_FOUND)
if (NOT SDLGFX_FOUND)
message (FATAL_ERROR "SDL_gfx library could not be found!")
endif (NOT SDLGFX_FOUND)
if (NOT SDLIMAGE_FOUND)
message (FATAL_ERROR "SDL_gfx library could not be found!")
endif (NOT SDLIMAGE_FOUND)
if (NOT SDLTTF_FOUND)
message (FATAL_ERROR "SDL_ttf library could not be found!")
endif (NOT SDLTTF_FOUND)
if (NOT SDLMIXER_FOUND)
message (FATAL_ERROR "SDL_mixer library could not be found!")
endif (NOT SDLMIXER_FOUND)
-if (NOT OPENSSL_FOUND)
- message (FATAL_ERROR "OpenSSL library could not be found!")
-endif (NOT OPENSSL_FOUND)
-
if (NOT CURL_FOUND)
message(FATAL_ERROR "CURL library could not be found!")
endif (NOT CURL_FOUND)
if (NOT LibArchive_FOUND)
message (FATAL_ERROR "LibArchive library could not be found!")
endif (NOT LibArchive_FOUND)
if (NOT LUA51_FOUND)
message (FATAL_ERROR "Lua library could not be found!")
endif (NOT LUA51_FOUND)
#Although Lua is found it could be the wrong version.
#Try to find the header file and extract the Lua version, if we don't find the header file carry on.
if (LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/lua.h")
#Open the file and extract the version define lines.
file (STRINGS "${LUA_INCLUDE_DIR}/lua.h" lua_version_str REGEX "^#define[ \t]+LUA_VERSION_M(AJ|IN)OR[ \t]")
#Extract only the numbers from the files.
string (REGEX MATCHALL "[0-9]" LUA_VERSION_STRING "${lua_version_str}")
string (COMPARE EQUAL "${LUA_VERSION_STRING}" "5;2" LUA_VERSION_MATCH)
if (NOT LUA_VERSION_MATCH)
message (FATAL_ERROR "Incorrect Lua version ${LUA_VERSION_STRING}, expected 5.2!")
endif (NOT LUA_VERSION_MATCH)
#Finally unset the unneeded variables.
unset (lua_version_str)
unset (LUA_VERSION_STRING)
unset (LUA_VERSION_MATCH)
endif()
#Parse the configure file.
Configure_File (
"${PROJECT_SOURCE_DIR}/src/config.h.in"
"${PROJECT_BINARY_DIR}/config.h"
)
#Add the include directories of the (found) libraries.
Include_Directories(
${PROJECT_BINARY_DIR}
${X11_X11_INCLUDE_PATH}
${OPENGL_gl_INCLUDE_DIR}
${SDL_INCLUDE_DIR}
${SDLGFX_INCLUDE_DIR}
${SDLIMAGE_INCLUDE_DIR}
${SDLTTF_INCLUDE_DIR}
${SDLMIXER_INCLUDE_DIR}
- ${OPENSSL_CRYPTO_INCLUDE_DIR}
${CURL_INCLUDE_DIR}
${LibArchive_INCLUDE_DIR}
${LUA_INCLUDE_DIR}
)
#Set the output path and the source path.
Set (EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR})
Set (SRC_DIR ${PROJECT_SOURCE_DIR}/src)
#List the source files.
File (GLOB SOURCES ${SRC_DIR}/*.cpp)
File (GLOB TINYGETTEXT ${SRC_DIR}/libs/tinygettext/*.cpp)
File (GLOB FINDLOCALE ${SRC_DIR}/libs/findlocale/*.cpp)
Add_Executable (meandmyshadow ${SOURCES} ${TINYGETTEXT} ${FINDLOCALE})
Target_Link_Libraries (
meandmyshadow
${OPENGL_gl_LIBRARY}
${X11_X11_LIB}
${SDL_LIBRARY}
${SDLGFX_LIBRARY}
${SDLIMAGE_LIBRARY}
${SDLTTF_LIBRARY}
${SDLMIXER_LIBRARY}
- ${OPENSSL_CRYPTO_LIBRARY}
${CURL_LIBRARY}
${LibArchive_LIBRARY}
${LUA_LIBRARIES}
)
#Path options
Set (BINDIR "bin" CACHE STRING "Where to install binaries")
Set (DATAROOTDIR "${CMAKE_INSTALL_PREFIX}/share" CACHE STRING "Sets the root of data directories to a non-default location")
Set (ICONDIR "${DATAROOTDIR}/icons" CACHE STRING "Sets the icon directory for desktop entry to a non-default location.")
Set (DESKTOPDIR "${DATAROOTDIR}/applications" CACHE STRING "Sets the desktop file directory for desktop entry to a non-default location.")
#Install locations
Install (DIRECTORY ${PROJECT_SOURCE_DIR}/data DESTINATION ${DATAROOTDIR}/meandmyshadow/)
Install (FILES AUTHORS DESTINATION ${DATAROOTDIR}/meandmyshadow/)
Install (TARGETS meandmyshadow RUNTIME DESTINATION ${BINDIR})
if ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
Install (FILES meandmyshadow.desktop DESTINATION ${DESKTOPDIR})
Install (FILES icons/16x16/meandmyshadow.png DESTINATION ${ICONDIR}/hicolor/16x16/apps/)
Install (FILES icons/32x32/meandmyshadow.png DESTINATION ${ICONDIR}/hicolor/32x32/apps/)
Install (FILES icons/48x48/meandmyshadow.png DESTINATION ${ICONDIR}/hicolor/48x48/apps/)
Install (FILES icons/64x64/meandmyshadow.png DESTINATION ${ICONDIR}/hicolor/64x64/apps/)
endif ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
diff --git a/src/MD5.cpp b/src/MD5.cpp
index 04e736e..05afaac 100644
--- a/src/MD5.cpp
+++ b/src/MD5.cpp
@@ -1,497 +1,433 @@
/*
* Copyright (C) 2012 Me and My Shadow
*
* This file is part of Me and My Shadow.
*
* Me and My Shadow is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Me and My Shadow is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <string.h>
#include "MD5.h"
#ifdef WIN32
#include <windows.h>
typedef struct MD5_CTX {
ULONG i[2];
ULONG buf[4];
unsigned char in[64];
unsigned char digest[16];
} MD5_CTX;
typedef void (WINAPI* F_MD5Init)(MD5_CTX *context);
typedef void (WINAPI* F_MD5Update)(MD5_CTX *context, const unsigned char *input, unsigned int inlen);
typedef void (WINAPI* F_MD5Final)(MD5_CTX *context);
//first time calling API will be redirect to these functions
static void WINAPI myMD5Init(MD5_CTX *context);
static void WINAPI myMD5Update(MD5_CTX *context, const unsigned char *input, unsigned int inlen);
static void WINAPI myMD5Final(MD5_CTX *context);
static F_MD5Init MD5Init=myMD5Init;
static F_MD5Update MD5Update=myMD5Update;
static F_MD5Final MD5Final=myMD5Final;
-#elif defined(ANDROID)
-
-/* When OpenSSL is not available we use this code segment */
-
-/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
-rights reserved.
-
-License to copy and use this software is granted provided that it
-is identified as the "RSA Data Security, Inc. MD5 Message-Digest
-Algorithm" in all material mentioning or referencing this software
-or this function.
-
-License is also granted to make and use derivative works provided
-that such works are identified as "derived from the RSA Data
-Security, Inc. MD5 Message-Digest Algorithm" in all material
-mentioning or referencing the derived work.
-
-RSA Data Security, Inc. makes no representations concerning either
-the merchantability of this software or the suitability of this
-software for any particular purpose. It is provided "as is"
-without express or implied warranty of any kind.
-
-These notices must be retained in any copies of any part of this
-documentation and/or software.
+#else
+/*
+ * NOTE: This code is used for both Android and Unix based systems.
+ * The code is based on the md5 code of md5deep (http://sourceforge.net/projects/md5deep/), which is released under the public domain.
*/
-#include <string.h>
+#include <stdint.h>
+
+typedef struct {
+ uint32_t buf[4];
+ uint32_t bits[2];
+ unsigned char in[64];
+} context_md5_t;
-/* UINT4 defines a four byte word */
-typedef unsigned int UINT4;
+// This is needed to make RSAREF happy on some MS-DOS compilers
+typedef context_md5_t MD5_CTX;
-/* MD5 context. */
-struct md5_ctx {
- UINT4 state[4]; /* state (ABCD) */
- UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
- unsigned char buffer[64]; /* input buffer */
-};
-typedef struct md5_ctx MD5_CTX;
+static void byteReverse(unsigned char *buf, unsigned longs)
+{
+ uint32_t t;
+ do {
+ t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(uint32_t *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
-static void MD5_Init(struct md5_ctx *);
-static void MD5_Update(struct md5_ctx *, const unsigned char *, unsigned int);
-static void MD5_Final(unsigned char [16], struct md5_ctx *);
+/* The four core functions - F1 is optimized somewhat */
-/* Constants for MD5Transform routine.
- */
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
-#define S11 7
-#define S12 12
-#define S13 17
-#define S14 22
-#define S21 5
-#define S22 9
-#define S23 14
-#define S24 20
-#define S31 4
-#define S32 11
-#define S33 16
-#define S34 23
-#define S41 6
-#define S42 10
-#define S43 15
-#define S44 21
-
-static void MD5Transform(UINT4 [4], const unsigned char [64]);
-static void Encode(unsigned char *, UINT4 *, unsigned int);
-static void Decode(UINT4 *, const unsigned char *, unsigned int);
-
-static const unsigned char PADDING[64] = {
- 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-/* F, G, H and I are basic MD5 functions.
- */
-#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
-#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
-#define I(x, y, z) ((y) ^ ((x) | (~z)))
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
-/* ROTATE_LEFT rotates x left n bits.
- */
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
-/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
-Rotation is separate from addition to prevent recomputation.
- */
-#define FF(a, b, c, d, x, s, ac) { \
- (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define GG(a, b, c, d, x, s, ac) { \
- (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define HH(a, b, c, d, x, s, ac) { \
- (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define II(a, b, c, d, x, s, ac) { \
- (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-
-/* MD5 initialization. Begins an MD5 operation, writing a new context.
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
*/
-static void MD5_Init(struct md5_ctx *context)
+static void MD5_Transform(uint32_t buf[4], uint32_t const in[16])
{
- context->count[0] = context->count[1] = 0;
- /* Load magic initialization constants. */
- context->state[0] = 0x67452301;
- context->state[1] = 0xefcdab89;
- context->state[2] = 0x98badcfe;
- context->state[3] = 0x10325476;
+ register uint32_t a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
}
-/* MD5 block update operation. Continues an MD5 message-digest
- operation, processing another message block, and updating the
- context.
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
*/
-static void MD5_Update (struct md5_ctx *context, /* context */
- const unsigned char *input, /* input block */
- unsigned int inputLen) /* length of input block */
+static void MD5_Init(context_md5_t *ctx)
{
- unsigned int i, bufindex, partLen;
-
- /* Compute number of bytes mod 64 */
- bufindex = (unsigned int)((context->count[0] >> 3) & 0x3F);
-
- /* Update number of bits */
- if((context->count[0] += ((UINT4)inputLen << 3))
- < ((UINT4)inputLen << 3))
- context->count[1]++;
- context->count[1] += ((UINT4)inputLen >> 29);
-
- partLen = 64 - bufindex;
-
- /* Transform as many times as possible. */
- if(inputLen >= partLen) {
- memcpy(&context->buffer[bufindex], input, partLen);
- MD5Transform(context->state, context->buffer);
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
- for (i = partLen; i + 63 < inputLen; i += 64)
- MD5Transform(context->state, &input[i]);
-
- bufindex = 0;
- }
- else
- i = 0;
-
- /* Buffer remaining input */
- memcpy(&context->buffer[bufindex], &input[i], inputLen-i);
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
}
-/* MD5 finalization. Ends an MD5 message-digest operation, writing the
- the message digest and zeroizing the context.
-*/
-static void MD5_Final(unsigned char digest[16], /* message digest */
- struct md5_ctx *context) /* context */
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static void MD5_Update(context_md5_t *ctx, const unsigned char *buf, size_t len)
{
- unsigned char bits[8];
- unsigned int count, padLen;
+ uint32_t t;
- /* Save number of bits */
- Encode (bits, context->count, 8);
+ /* Update bitcount */
- /* Pad out to 56 mod 64. */
- count = (unsigned int)((context->count[0] >> 3) & 0x3f);
- padLen = (count < 56) ? (56 - count) : (120 - count);
- MD5_Update (context, PADDING, padLen);
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
+ ctx->bits[1]++; /* Carry from low to high */
+ ctx->bits[1] += len >> 29;
- /* Append length (before padding) */
- MD5_Update (context, bits, 8);
+ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
- /* Store state in digest */
- Encode (digest, context->state, 16);
+ /* Handle any leading odd-sized chunks */
- /* Zeroize sensitive information. */
- memset ((void *)context, 0, sizeof (*context));
-}
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
-/* MD5 basic transformation. Transforms state based on block. */
-static void MD5Transform(UINT4 state[4],
- const unsigned char block[64])
-{
- UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
-
- Decode (x, block, 64);
-
- /* Round 1 */
- FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
- FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
- FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
- FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
- FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
- FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
- FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
- FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
- FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
- FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
- FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
- FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
- FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
- FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
- FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
- FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
-
- /* Round 2 */
- GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
- GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
- GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
- GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
- GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
- GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
- GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
- GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
- GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
- GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
- GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
- GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
- GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
- GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
- GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
- GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
-
- /* Round 3 */
- HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
- HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
- HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
- HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
- HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
- HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
- HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
- HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
- HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
- HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
- HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
- HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
- HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
- HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
- HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
- HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
-
- /* Round 4 */
- II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
- II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
- II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
- II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
- II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
- II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
- II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
- II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
- II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
- II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
- II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
- II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
- II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
- II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
- II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
- II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
-
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
-
- /* Zeroize sensitive information. */
- memset((void *)x, 0, sizeof (x));
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5_Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+ /* Process data in 64-byte chunks */
+
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5_Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ /* Handle any remaining bytes of data. */
+
+ memcpy(ctx->in, buf, len);
}
-/* Encodes input (UINT4) into output (unsigned char). Assumes len is
- a multiple of 4.
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
*/
-static void Encode (unsigned char *output,
- UINT4 *input,
- unsigned int len)
-{
- unsigned int i, j;
-
- for (i = 0, j = 0; j < len; i++, j += 4) {
- output[j] = (unsigned char)(input[i] & 0xff);
- output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
- output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
- output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
- }
-}
-
-/* Decodes input (unsigned char) into output (UINT4). Assumes len is
- a multiple of 4.
-*/
-static void Decode (UINT4 *output,
- const unsigned char *input,
- unsigned int len)
+static void MD5_Final(unsigned char digest[16], context_md5_t *ctx)
{
- unsigned int i, j;
-
- for (i = 0, j = 0; j < len; i++, j += 4)
- output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) |
- (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
+ unsigned count;
+ unsigned char *p;
+
+ /* Compute number of bytes mod 64 */
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ /* Set the first char of padding to 0x80. This is safe since there is
+ always at least one byte free */
+ p = ctx->in + count;
+ *p++ = 0x80;
+
+ /* Bytes of padding needed to make 64 bytes */
+ count = 64 - 1 - count;
+
+ /* Pad out to 56 mod 64 */
+ if (count < 8) {
+ /* Two lots of padding: Pad the first block to 64 bytes */
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5_Transform(ctx->buf, (uint32_t *) ctx->in);
+
+ /* Now fill the next block with 56 bytes */
+ memset(ctx->in, 0, 56);
+ } else {
+ /* Pad block to 56 bytes */
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ /* Append length in bits and transform */
+
+ // the two lines below generated this error:
+ // "md5.c:147:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]"
+
+ //((uint32_t *) ctx->in)[14] = ctx->bits[0];
+ //((uint32_t *) ctx->in)[15] = ctx->bits[1];
+
+ // We will manually expand the cast into two statements to make
+ // the compiler happy...
+
+ uint32_t *ctxin = (uint32_t *)ctx->in;
+ ctxin[14] = ctx->bits[0];
+ ctxin[15] = ctx->bits[1];
+
+ MD5_Transform(ctx->buf, (uint32_t *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+
+ memset(ctx, 0, sizeof(* ctx)); /* In case it's sensitive */
+ /* The original version of this code omitted the asterisk. In
+ effect, only the first part of ctx was wiped with zeros, not
+ the whole thing. Bug found by Derek Jones. Original line: */
+ // memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
}
-static unsigned char *MD5(const unsigned char *d, unsigned long n, unsigned char *md){
- MD5_CTX ctx;
- static unsigned char digest[16];
-
- MD5_Init(&ctx);
- MD5_Update(&ctx,d,n);
- MD5_Final(digest,&ctx);
-
- if(md){
- memcpy(md,digest,16);
- return md;
- }else{
- return digest;
- }
+static unsigned char* MD5(const unsigned char* d,unsigned long n,const unsigned char* md){
+ unsigned char* result[16];
+ MD5_CTX context;
+ MD5_Init(&context);
+ MD5_Update(&context,d,n);
+ MD5_Final((unsigned char*)result,&context);
+ return (*result);
}
-
-#else
-
-#include <openssl/md5.h>
-
#endif
#include <assert.h>
-#include <string.h>
#ifdef WIN32
static void loadMD5Functions(){
HMODULE h;
h=LoadLibraryA("cryptdll.dll");
if(h!=NULL){
MD5Init=(F_MD5Init)GetProcAddress(h,"MD5Init");
MD5Update=(F_MD5Update)GetProcAddress(h,"MD5Update");
MD5Final=(F_MD5Final)GetProcAddress(h,"MD5Final");
if(MD5Init==NULL || MD5Update==NULL || MD5Final==NULL) FreeLibrary(h);
else return;
}
h=LoadLibraryA("advapi32.dll");
if(h!=NULL){
MD5Init=(F_MD5Init)GetProcAddress(h,"MD5Init");
MD5Update=(F_MD5Update)GetProcAddress(h,"MD5Update");
MD5Final=(F_MD5Final)GetProcAddress(h,"MD5Final");
if(MD5Init==NULL || MD5Update==NULL || MD5Final==NULL) FreeLibrary(h);
else return;
}
FatalAppExitA(-1,"Can't find MD5 functions!!!");
}
static void WINAPI myMD5Init(MD5_CTX *context){
loadMD5Functions();
MD5Init(context);
}
static void WINAPI myMD5Update(MD5_CTX *context, const unsigned char *input, unsigned int inlen){
loadMD5Functions();
MD5Update(context,input,inlen);
}
static void WINAPI myMD5Final(MD5_CTX *context){
loadMD5Functions();
MD5Final(context);
}
#endif
//compute the MD5 message digest of the n bytes at d and place it in md
//(which must have space for 16 bytes of output). If md is NULL,
//the digest is placed in a static array.
unsigned char *Md5::calc(const void *d, unsigned long n, unsigned char *md){
#ifdef WIN32
static MD5_CTX ctx;
MD5Init(&ctx);
MD5Update(&ctx,(const unsigned char*)d,n);
MD5Final(&ctx);
if(md){
memcpy(md,ctx.digest,16);
return md;
}else{
return ctx.digest;
}
#else
return MD5((const unsigned char*)d,n,md);
#endif
}
char *Md5::toString(unsigned char *md){
static char s[40];
const char* hex="0123456789abcdef";
for(int i=0;i<16;i++){
s[i*2]=hex[(md[i]&0xF0)>>4];
s[i*2+1]=hex[md[i]&0xF];
}
s[32]='\0';
return s;
}
//initializes the class for calculating MD5.
void Md5::init(){
//First check the size
assert(sizeof(MD5_CTX)<=MD5_CTX_SIZE);
#ifdef WIN32
MD5Init((MD5_CTX*)md5_ctx);
#else
MD5_Init((MD5_CTX*)md5_ctx);
#endif
}
//add chunks of the message to be hashed (len bytes at data).
void Md5::update(const void *data, unsigned long len){
//First check the size
assert(sizeof(MD5_CTX)<=MD5_CTX_SIZE);
#ifdef WIN32
MD5Update((MD5_CTX*)md5_ctx,(const unsigned char*)data,len);
#else
MD5_Update((MD5_CTX*)md5_ctx,(const unsigned char*)data,len);
#endif
}
//finished the caluclation, places the message digest in md,
//which must have space for 16 bytes of output (or NULL).
unsigned char *Md5::final(unsigned char *md){
static unsigned char digest[16];
//First check the size
assert(sizeof(MD5_CTX)<=MD5_CTX_SIZE);
#ifdef WIN32
MD5_CTX *ctx=(MD5_CTX*)md5_ctx;
MD5Final(ctx);
if(md==NULL) md=digest;
memcpy(md,ctx->digest,16);
return md;
#else
if(md==NULL) md=digest;
MD5_Final(md,(MD5_CTX*)md5_ctx);
return md;
#endif
}

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