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| author | Petr Mrázek | 2012-03-13 14:46:48 +0100 |
|---|---|---|
| committer | Petr Mrázek | 2012-03-13 14:46:48 +0100 |
| commit | eb4757043b12764f20c6bd1a6edc12201f74b2ce (patch) | |
| tree | cfb41b761fa691651b88ce330fde59e57862a384 /depends/md5 | |
| parent | b3f6bccdf6ba559cfbff462029ea350f5d367171 (diff) | |
| download | dfhack-eb4757043b12764f20c6bd1a6edc12201f74b2ce.tar.gz dfhack-eb4757043b12764f20c6bd1a6edc12201f74b2ce.tar.bz2 dfhack-eb4757043b12764f20c6bd1a6edc12201f74b2ce.tar.xz | |
Move depends out of main library, make them (static) libraries.
Diffstat (limited to 'depends/md5')
| -rw-r--r-- | depends/md5/CMakeLists.txt | 3 | ||||
| -rw-r--r-- | depends/md5/md5.cpp | 240 | ||||
| -rw-r--r-- | depends/md5/md5.h | 36 | ||||
| -rw-r--r-- | depends/md5/md5wrapper.cpp | 167 | ||||
| -rw-r--r-- | depends/md5/md5wrapper.h | 69 |
5 files changed, 515 insertions, 0 deletions
diff --git a/depends/md5/CMakeLists.txt b/depends/md5/CMakeLists.txt new file mode 100644 index 00000000..69e0cf0b --- /dev/null +++ b/depends/md5/CMakeLists.txt @@ -0,0 +1,3 @@ +project(dfhack-md5) +ADD_LIBRARY(dfhack-md5 STATIC EXCLUDE_FROM_ALL md5.cpp md5wrapper.cpp) +IDE_FOLDER(dfhack-md5 "Depends")
\ No newline at end of file diff --git a/depends/md5/md5.cpp b/depends/md5/md5.cpp new file mode 100644 index 00000000..5ee4fb45 --- /dev/null +++ b/depends/md5/md5.cpp @@ -0,0 +1,240 @@ +/* + * This code implements the MD5 message-digest algorithm. + * The algorithm is due to Ron Rivest. This code was + * written by Colin Plumb in 1993, no copyright is claimed. + * This code is in the public domain; do with it what you wish. + */ + +#include <string.h> +#include "md5.h" + +#ifndef HIGHFIRST +#define byteReverse(buf, len) /* Nothing */ +#else +/* + * Note: this code is harmless on little-endian machines. + */ +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); +} +#endif + +/* + * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious + * initialization constants. + */ +void MD5Init(MD5Context *ctx) +{ + ctx->buf[0] = 0x67452301; + ctx->buf[1] = 0xefcdab89; + ctx->buf[2] = 0x98badcfe; + ctx->buf[3] = 0x10325476; + + ctx->bits[0] = 0; + ctx->bits[1] = 0; +} + +/* + * Update context to reflect the concatenation of another buffer full + * of bytes. + */ +void MD5Update( MD5Context *ctx, unsigned char *buf, unsigned len) +{ + uint32_t t; + + /* Update bitcount */ + + 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; + + t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ + + /* Handle any leading odd-sized chunks */ + if (t) + { + unsigned char *p = (unsigned char *) ctx->in + t; + + t = 64 - t; + if (len < t) + { + memcpy(p, buf, len); + return; + } + memcpy(p, buf, t); + byteReverse(ctx->in, 16); + MD5Transform(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); + MD5Transform(ctx->buf, (uint32_t *) ctx->in); + buf += 64; + len -= 64; + } + + /* Handle any remaining bytes of data. */ + memcpy(ctx->in, buf, len); +} + +/* + * Final wrapup - pad to 64-byte boundary with the bit pattern + * 1 0* (64-bit count of bits processed, MSB-first) + */ +void MD5Final(unsigned char digest[16], MD5Context *ctx) +{ + 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); + MD5Transform(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 */ + ((uint32_t *) ctx->in)[14] = ctx->bits[0]; + ((uint32_t *) ctx->in)[15] = ctx->bits[1]; + + MD5Transform(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 four core functions - F1 is optimized somewhat */ + +/* #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)) + +/* 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 ) + +/* + * 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. + */ +void MD5Transform(uint32_t buf[4], uint32_t in[16]) +{ + 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; +} diff --git a/depends/md5/md5.h b/depends/md5/md5.h new file mode 100644 index 00000000..0a04051b --- /dev/null +++ b/depends/md5/md5.h @@ -0,0 +1,36 @@ +#pragma once + +/* The following tests optimise behaviour on little-endian + machines, where there is no need to reverse the byte order + of 32 bit words in the MD5 computation. By default, + HIGHFIRST is defined, which indicates we're running on a + big-endian (most significant byte first) machine, on which + the byteReverse function in md5.c must be invoked. However, + byteReverse is coded in such a way that it is an identity + function when run on a little-endian machine, so calling it + on such a platform causes no harm apart from wasting time. + If the platform is known to be little-endian, we speed + things up by undefining HIGHFIRST, which defines + byteReverse as a null macro. Doing things in this manner + insures we work on new platforms regardless of their byte + order. */ + +#define HIGHFIRST + +#ifdef __i386__ +#undef HIGHFIRST +#endif + +#include <stdint.h> + +struct MD5Context +{ + uint32_t buf[4]; + uint32_t bits[2]; + unsigned char in[64]; +}; + +extern void MD5Init( MD5Context *ctx); +extern void MD5Update( MD5Context *ctx, unsigned char *buf, unsigned len); +extern void MD5Final(unsigned char digest[16], MD5Context *ctx); +extern void MD5Transform(uint32_t buf[4], uint32_t in[16]); diff --git a/depends/md5/md5wrapper.cpp b/depends/md5/md5wrapper.cpp new file mode 100644 index 00000000..e12b6578 --- /dev/null +++ b/depends/md5/md5wrapper.cpp @@ -0,0 +1,167 @@ +/* + * This is part of my wrapper-class to create + * a MD5 Hash from a string and a file. + * + * This code is completly free, you + * can copy it, modify it, or do + * what ever you want with it. + * + * Feb. 2005 + * Benjamin Grüdelbach + */ + +/* + * Changed unsigned long int types into uint32_t to make this work on 64bit systems. + * Sep. 5. 2009 + * Petr Mrázek + */ + +#if defined(_MSC_VER) && _MSC_VER >= 1400 +#define _CRT_SECURE_NO_WARNINGS +#endif + +//---------------------------------------------------------------------- +//basic includes +#include <fstream> +#include <iostream> +#include <errno.h> +#include <string.h> +//my includes +#include "md5wrapper.h" +#include "md5.h" + +//---------privates-------------------------- + +/* + * internal hash function, calling + * the basic methods from md5.h + */ +std::string md5wrapper::hashit(std::string text) +{ + MD5Context ctx; + + //init md5 + MD5Init(&ctx); + //update with our string + MD5Update(&ctx, + (unsigned char*)text.c_str(), + text.length()); + + //create the hash + unsigned char buff[16] = ""; + MD5Final((unsigned char*)buff,&ctx); + + //converte the hash to a string and return it + return convToString(buff); +} + +/* + * converts the numeric hash to + * a valid std::string. + * (based on Jim Howard's code; + * http://www.codeproject.com/cpp/cmd5.asp) + */ +std::string md5wrapper::convToString(unsigned char *bytes) +{ + char asciihash[33]; + + int p = 0; + for(int i=0; i<16; i++) + { + ::sprintf(&asciihash[p],"%02x",bytes[i]); + p += 2; + } + asciihash[32] = '\0'; + return std::string(asciihash); +} + +//---------publics-------------------------- + +//constructor +md5wrapper::md5wrapper() +{ +} + + +//destructor +md5wrapper::~md5wrapper() +{ +} + +/* + * creates a MD5 hash from + * "text" and returns it as + * string + */ +std::string md5wrapper::getHashFromString(std::string text) +{ + return this->hashit(text); +} + + +/* + * creates a MD5 hash from + * a file specified in "filename" and + * returns it as string + * (based on Ronald L. Rivest's code + * from RFC1321 "The MD5 Message-Digest Algorithm") + */ +std::string md5wrapper::getHashFromFile(std::string filename, uint32_t & length, char * first_kb) +{ + FILE *file; + MD5Context context; + + int len; + int saved = 0; + unsigned char buffer[1024], digest[16]; + + //open file + if ((file = fopen (filename.c_str(), "rb")) == NULL) + { + return "file unreadable."; + } + length = 0; + //init md5 + MD5Init (&context); + + //read the filecontent + while (1) + { + errno = 0; + len = fread (buffer, 1, 1024, file); + if(saved < 1024 && first_kb) + { + memcpy(first_kb + saved, buffer, std::min (len, 1024 - saved)); + saved += len; + } + length += len; + if(len != 1024) + { + int err = ferror(file); + //FIXME: check errno here. + if(err) + { + fclose(file); + return strerror(err); + } + if(feof(file)) + { + MD5Update (&context, buffer, len); + break; + } + } + MD5Update (&context, buffer, len); + } + + /* + generate hash, close the file and return the + hash as std::string + */ + MD5Final (digest, &context); + fclose (file); + return convToString(digest); + } + +/* + * EOF + */ diff --git a/depends/md5/md5wrapper.h b/depends/md5/md5wrapper.h new file mode 100644 index 00000000..1a41192a --- /dev/null +++ b/depends/md5/md5wrapper.h @@ -0,0 +1,69 @@ +/* + * This is my wrapper-class to create + * a MD5 Hash from a string and a file. + * + * This code is completly free, you + * can copy it, modify it, or do + * what ever you want with it. + * + * Feb. 2005 + * Benjamin Grüdelbach + */ + +/* + * Changed unsigned long int types into uint32_t to make this work on 64bit systems. + * Sep. 5. 2009 + * Petr Mrázek + */ + +//include protection +#ifndef MD5WRAPPER_H +#define MD5WRAPPER_H + +//basic includes +#include <string> +#include <stdint.h> + +class md5wrapper +{ + private: + /* + * internal hash function, calling + * the basic methods from md5.h + */ + std::string hashit(std::string text); + + /* + * converts the numeric giets to + * a valid std::string + */ + std::string convToString(unsigned char *bytes); + public: + //constructor + md5wrapper(); + + //destructor + ~md5wrapper(); + + /* + * creates a MD5 hash from + * "text" and returns it as + * string + */ + std::string getHashFromString(std::string text); + + /* + * creates a MD5 hash from + * a file specified in "filename" and + * returns it as string + */ + std::string getHashFromFile(const std::string filename, uint32_t & length, char * first_kb = NULL); +}; + + +//include protection +#endif + +/* + * EOF + */ |
