/* * Copyright (c) 2017-2023 zhllxt * * author : zhllxt * email : 37792738@qq.com * * Distributed under the Boost Software License, Version 1.0. (See accompanying * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) * * code come from : boost/uuid/detail/md5.hpp */ #ifndef __ASIO2_MD5_IMPL_HPP__ #define __ASIO2_MD5_IMPL_HPP__ #if defined(_MSC_VER) && (_MSC_VER >= 1200) #pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include #include #include #include #include #include #include #if !defined(ASIO2_HEADER_ONLY) && __has_include() #include #ifndef ASIO2_ENDIAN_LITTLE_BYTE #define ASIO2_ENDIAN_LITTLE_BYTE BOOST_ENDIAN_LITTLE_BYTE #endif #else #include #ifndef ASIO2_ENDIAN_LITTLE_BYTE #define ASIO2_ENDIAN_LITTLE_BYTE BHO_ENDIAN_LITTLE_BYTE #endif #endif #ifndef ASIO2_DISABLE_AUTO_BOOST_UUID_COMPAT_PRE_1_71_MD5 #ifndef BOOST_UUID_COMPAT_PRE_1_71_MD5 #define BOOST_UUID_COMPAT_PRE_1_71_MD5 #endif // !BOOST_UUID_COMPAT_PRE_1_71_MD5 #endif // !ASIO2_DISABLE_AUTO_BOOST_UUID_COMPAT_PRE_1_71_MD5 namespace asio2 { class md5 { public: md5() { MD5_Init(&ctx_); } /** * @construct Construct a MD5 object with a std::string. */ md5(const std::string & message) : md5() { MD5_Update(&ctx_, (const void*)message.data(), static_cast(message.length())); } /** * @construct Construct a MD5 object with a char pointer. */ md5(const char * message) : md5() { MD5_Update(&ctx_, (const void*)message, static_cast(std::strlen(message))); } /** * @construct Construct a MD5 object with a unsigned char pointer. */ md5(const void * message, std::size_t size) : md5() { MD5_Update(&ctx_, message, static_cast(size)); } /** * @construct Construct a MD5 object from a file path. */ md5(const std::filesystem::path& filepath) : md5() { std::error_code ec{}; std::uintmax_t size = std::filesystem::file_size(filepath, ec); if (!ec && size > static_cast(0)) { std::fstream file(filepath, std::ios::in | std::ios::binary); if (file) { char buffer[1024]; while (size > static_cast(0)) { if (size >= static_cast(1024)) { if (!file.read(buffer, 1024)) break; MD5_Update(&ctx_, (const void*)buffer, static_cast(1024)); size -= 1024; } else { if (!file.read(buffer, static_cast(size))) break; MD5_Update(&ctx_, (const void*)buffer, static_cast(size)); size -= size; } } } } } /* Convert digest to std::string value */ std::string str(bool upper = false) { /* Hex numbers. */ char hex_upper[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; char hex_lower[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; std::uint8_t digest[16]; get_digest(digest); std::string str; str.reserve(16 << 1); for (std::size_t i = 0; i < 16; ++i) { int t = digest[i]; int a = t / 16; int b = t % 16; str.append(1, upper ? hex_upper[a] : hex_lower[a]); str.append(1, upper ? hex_upper[b] : hex_lower[b]); } return str; } void process_byte(unsigned char byte) { MD5_Update(&ctx_, &byte, 1); } void process_bytes(void const* buffer, std::size_t byte_count) { MD5_Update(&ctx_, buffer, static_cast(byte_count)); } void get_digest(std::uint8_t digest[16]) { MD5_Final(reinterpret_cast(&digest[0]), &ctx_); } unsigned char get_version() const { // RFC 4122 Section 4.1.3 //return uuid::version_name_based_md5; return static_cast(3); } private: /* Any 32-bit or wider unsigned integer data type will do */ typedef uint32_t MD5_u32plus; typedef struct { MD5_u32plus lo, hi; MD5_u32plus a, b, c, d; unsigned char buffer[64]; MD5_u32plus block[16]; } MD5_CTX; /* * The basic MD5 functions. * * F and G are optimized compared to their RFC 1321 definitions for * architectures that lack an AND-NOT instruction, just like in Colin Plumb's * implementation. */ inline MD5_u32plus ASIO2_UUID_DETAIL_MD5_F(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((z) ^ ((x) & ((y) ^ (z)))); } inline MD5_u32plus ASIO2_UUID_DETAIL_MD5_G(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((y) ^ ((z) & ((x) ^ (y)))); } inline MD5_u32plus ASIO2_UUID_DETAIL_MD5_H(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return (((x) ^ (y)) ^ (z)); } inline MD5_u32plus ASIO2_UUID_DETAIL_MD5_H2(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((x) ^ ((y) ^ (z))); } inline MD5_u32plus ASIO2_UUID_DETAIL_MD5_I(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((y) ^ ((x) | ~(z))); } /* * The MD5 transformation for all four rounds. */ #define ASIO2_UUID_DETAIL_MD5_STEP(f, a, b, c, d, x, t, s) \ (a) += f((b), (c), (d)) + (x) + (t); \ (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \ (a) += (b); /* * SET reads 4 input bytes in little-endian byte order and stores them in a * properly aligned word in host byte order. * * The check for little-endian architectures that tolerate unaligned memory * accesses is just an optimization. Nothing will break if it fails to detect * a suitable architecture. * * Unfortunately, this optimization may be a C strict aliasing rules violation * if the caller's data buffer has effective type that cannot be aliased by * MD5_u32plus. In practice, this problem may occur if these MD5 routines are * inlined into a calling function, or with future and dangerously advanced * link-time optimizations. For the time being, keeping these MD5 routines in * their own translation unit avoids the problem. */ #if defined(__i386__) || defined(__x86_64__) || defined(__vax__) #define ASIO2_UUID_DETAIL_MD5_SET(n) \ (*(MD5_u32plus *)&ptr[(n) * 4]) #define ASIO2_UUID_DETAIL_MD5_GET(n) \ ASIO2_UUID_DETAIL_MD5_SET(n) #else #define ASIO2_UUID_DETAIL_MD5_SET(n) \ (ctx->block[(n)] = \ (MD5_u32plus)ptr[(n) * 4] | \ ((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \ ((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \ ((MD5_u32plus)ptr[(n) * 4 + 3] << 24)) #define ASIO2_UUID_DETAIL_MD5_GET(n) \ (ctx->block[(n)]) #endif /* * This processes one or more 64-byte data blocks, but does NOT update the bit * counters. There are no alignment requirements. */ const void *body(MD5_CTX *ctx, const void *data, unsigned long size) { const unsigned char *ptr; MD5_u32plus a, b, c, d; MD5_u32plus saved_a, saved_b, saved_c, saved_d; ptr = (const unsigned char *)data; a = ctx->a; b = ctx->b; c = ctx->c; d = ctx->d; do { saved_a = a; saved_b = b; saved_c = c; saved_d = d; /* Round 1 */ ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, a, b, c, d, ASIO2_UUID_DETAIL_MD5_SET(0), 0xd76aa478, 7) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, d, a, b, c, ASIO2_UUID_DETAIL_MD5_SET(1), 0xe8c7b756, 12) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, c, d, a, b, ASIO2_UUID_DETAIL_MD5_SET(2), 0x242070db, 17) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, b, c, d, a, ASIO2_UUID_DETAIL_MD5_SET(3), 0xc1bdceee, 22) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, a, b, c, d, ASIO2_UUID_DETAIL_MD5_SET(4), 0xf57c0faf, 7) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, d, a, b, c, ASIO2_UUID_DETAIL_MD5_SET(5), 0x4787c62a, 12) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, c, d, a, b, ASIO2_UUID_DETAIL_MD5_SET(6), 0xa8304613, 17) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, b, c, d, a, ASIO2_UUID_DETAIL_MD5_SET(7), 0xfd469501, 22) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, a, b, c, d, ASIO2_UUID_DETAIL_MD5_SET(8), 0x698098d8, 7) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, d, a, b, c, ASIO2_UUID_DETAIL_MD5_SET(9), 0x8b44f7af, 12) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, c, d, a, b, ASIO2_UUID_DETAIL_MD5_SET(10), 0xffff5bb1, 17) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, b, c, d, a, ASIO2_UUID_DETAIL_MD5_SET(11), 0x895cd7be, 22) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, a, b, c, d, ASIO2_UUID_DETAIL_MD5_SET(12), 0x6b901122, 7) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, d, a, b, c, ASIO2_UUID_DETAIL_MD5_SET(13), 0xfd987193, 12) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, c, d, a, b, ASIO2_UUID_DETAIL_MD5_SET(14), 0xa679438e, 17) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_F, b, c, d, a, ASIO2_UUID_DETAIL_MD5_SET(15), 0x49b40821, 22) /* Round 2 */ ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(1), 0xf61e2562, 5) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(6), 0xc040b340, 9) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(11), 0x265e5a51, 14) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(0), 0xe9b6c7aa, 20) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(5), 0xd62f105d, 5) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(10), 0x02441453, 9) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(15), 0xd8a1e681, 14) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(4), 0xe7d3fbc8, 20) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(9), 0x21e1cde6, 5) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(14), 0xc33707d6, 9) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(3), 0xf4d50d87, 14) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(8), 0x455a14ed, 20) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(13), 0xa9e3e905, 5) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(2), 0xfcefa3f8, 9) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(7), 0x676f02d9, 14) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_G, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(12), 0x8d2a4c8a, 20) /* Round 3 */ ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(5), 0xfffa3942, 4) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(8), 0x8771f681, 11) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(11), 0x6d9d6122, 16) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(14), 0xfde5380c, 23) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(1), 0xa4beea44, 4) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(4), 0x4bdecfa9, 11) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(7), 0xf6bb4b60, 16) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(10), 0xbebfbc70, 23) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(13), 0x289b7ec6, 4) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(0), 0xeaa127fa, 11) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(3), 0xd4ef3085, 16) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(6), 0x04881d05, 23) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(9), 0xd9d4d039, 4) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(12), 0xe6db99e5, 11) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(15), 0x1fa27cf8, 16) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_H2, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(2), 0xc4ac5665, 23) /* Round 4 */ ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(0), 0xf4292244, 6) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(7), 0x432aff97, 10) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(14), 0xab9423a7, 15) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(5), 0xfc93a039, 21) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(12), 0x655b59c3, 6) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(3), 0x8f0ccc92, 10) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(10), 0xffeff47d, 15) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(1), 0x85845dd1, 21) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(8), 0x6fa87e4f, 6) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(15), 0xfe2ce6e0, 10) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(6), 0xa3014314, 15) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(13), 0x4e0811a1, 21) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, a, b, c, d, ASIO2_UUID_DETAIL_MD5_GET(4), 0xf7537e82, 6) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, d, a, b, c, ASIO2_UUID_DETAIL_MD5_GET(11), 0xbd3af235, 10) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, c, d, a, b, ASIO2_UUID_DETAIL_MD5_GET(2), 0x2ad7d2bb, 15) ASIO2_UUID_DETAIL_MD5_STEP(ASIO2_UUID_DETAIL_MD5_I, b, c, d, a, ASIO2_UUID_DETAIL_MD5_GET(9), 0xeb86d391, 21) a += saved_a; b += saved_b; c += saved_c; d += saved_d; ptr += 64; } while (size -= 64); ctx->a = a; ctx->b = b; ctx->c = c; ctx->d = d; return ptr; } void MD5_Init(MD5_CTX *ctx) { ctx->a = 0x67452301; ctx->b = 0xefcdab89; ctx->c = 0x98badcfe; ctx->d = 0x10325476; ctx->lo = 0; ctx->hi = 0; } void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size) { MD5_u32plus saved_lo; unsigned long used, available; saved_lo = ctx->lo; if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo) ctx->hi++; ctx->hi += size >> 29; used = saved_lo & 0x3f; if (used) { available = 64 - used; if (size < available) { memcpy(&ctx->buffer[used], data, size); return; } memcpy(&ctx->buffer[used], data, available); data = (const unsigned char *)data + available; size -= available; body(ctx, ctx->buffer, 64); } if (size >= 64) { data = body(ctx, data, size & ~(unsigned long)0x3f); size &= 0x3f; } memcpy(ctx->buffer, data, size); } // This must remain consistent no matter the endianness #define ASIO2_UUID_DETAIL_MD5_OUT(dst, src) \ (dst)[0] = (unsigned char)(src); \ (dst)[1] = (unsigned char)((src) >> 8); \ (dst)[2] = (unsigned char)((src) >> 16); \ (dst)[3] = (unsigned char)((src) >> 24); // // A big-endian issue with MD5 results was resolved // in boost 1.71. If you generated md5 name-based uuids // with boost 1.66 through 1.70 and stored them, then // set the following compatibility flag to ensure that // your hash generation remains consistent. // #if defined(BOOST_UUID_COMPAT_PRE_1_71_MD5) || defined(BHO_UUID_COMPAT_PRE_1_71_MD5) #define ASIO2_UUID_DETAIL_MD5_BYTE_OUT(dst, src) \ ASIO2_UUID_DETAIL_MD5_OUT(dst, src) #else // // We're copying into a byte buffer which is actually // backed by an unsigned int array, which later on // is then swabbed one more time by the basic name // generator. Therefore the logic here is reversed. // This was done to minimize the impact to existing // name-based hash generation. The correct fix would // be to make this and name generation endian-correct // but that would even break previously generated sha1 // hashes too. // #if ASIO2_ENDIAN_LITTLE_BYTE #define ASIO2_UUID_DETAIL_MD5_BYTE_OUT(dst, src) \ (dst)[0] = (unsigned char)((src) >> 24); \ (dst)[1] = (unsigned char)((src) >> 16); \ (dst)[2] = (unsigned char)((src) >> 8); \ (dst)[3] = (unsigned char)(src); #else #define ASIO2_UUID_DETAIL_MD5_BYTE_OUT(dst, src) \ (dst)[0] = (unsigned char)(src); \ (dst)[1] = (unsigned char)((src) >> 8); \ (dst)[2] = (unsigned char)((src) >> 16); \ (dst)[3] = (unsigned char)((src) >> 24); #endif #endif // BOOST_UUID_COMPAT_PRE_1_71_MD5 void MD5_Final(unsigned char *result, MD5_CTX *ctx) { unsigned long used, available; used = ctx->lo & 0x3f; ctx->buffer[used++] = 0x80; available = 64 - used; if (available < 8) { memset(&ctx->buffer[used], 0, available); body(ctx, ctx->buffer, 64); used = 0; available = 64; } memset(&ctx->buffer[used], 0, available - 8); ctx->lo <<= 3; ASIO2_UUID_DETAIL_MD5_OUT(&ctx->buffer[56], ctx->lo) ASIO2_UUID_DETAIL_MD5_OUT(&ctx->buffer[60], ctx->hi) body(ctx, ctx->buffer, 64); ASIO2_UUID_DETAIL_MD5_BYTE_OUT(&result[0], ctx->a) ASIO2_UUID_DETAIL_MD5_BYTE_OUT(&result[4], ctx->b) ASIO2_UUID_DETAIL_MD5_BYTE_OUT(&result[8], ctx->c) ASIO2_UUID_DETAIL_MD5_BYTE_OUT(&result[12], ctx->d) memset(ctx, 0, sizeof(*ctx)); } #undef ASIO2_UUID_DETAIL_MD5_OUT #undef ASIO2_UUID_DETAIL_MD5_SET #undef ASIO2_UUID_DETAIL_MD5_GET #undef ASIO2_UUID_DETAIL_MD5_STEP #undef ASIO2_UUID_DETAIL_MD5_BYTE_OUT MD5_CTX ctx_; }; } #endif // !__ASIO2_MD5_IMPL_HPP__