diff options
Diffstat (limited to 'tools/create_kyradat/md5.cpp')
-rw-r--r-- | tools/create_kyradat/md5.cpp | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/tools/create_kyradat/md5.cpp b/tools/create_kyradat/md5.cpp deleted file mode 100644 index 214b5ef7ed..0000000000 --- a/tools/create_kyradat/md5.cpp +++ /dev/null @@ -1,267 +0,0 @@ -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * This program 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 2 - * of the License, or (at your option) any later version. - - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ - * - */ - -// Disable symbol overrides so that we can use system headers. -#define FORBIDDEN_SYMBOL_ALLOW_ALL - -#include "md5.h" - -#define GET_UINT32(n, b, i) (n) = READ_LE_UINT32(b + i) -#define PUT_UINT32(n, b, i) WRITE_LE_UINT32(b + i, n) - -void md5_starts(md5_context *ctx) { - ctx->total[0] = 0; - ctx->total[1] = 0; - - ctx->state[0] = 0x67452301; - ctx->state[1] = 0xEFCDAB89; - ctx->state[2] = 0x98BADCFE; - ctx->state[3] = 0x10325476; -} - -static void md5_process(md5_context *ctx, const uint8 data[64]) { - uint32 X[16], A, B, C, D; - - GET_UINT32(X[0], data, 0); - GET_UINT32(X[1], data, 4); - GET_UINT32(X[2], data, 8); - GET_UINT32(X[3], data, 12); - GET_UINT32(X[4], data, 16); - GET_UINT32(X[5], data, 20); - GET_UINT32(X[6], data, 24); - GET_UINT32(X[7], data, 28); - GET_UINT32(X[8], data, 32); - GET_UINT32(X[9], data, 36); - GET_UINT32(X[10], data, 40); - GET_UINT32(X[11], data, 44); - GET_UINT32(X[12], data, 48); - GET_UINT32(X[13], data, 52); - GET_UINT32(X[14], data, 56); - GET_UINT32(X[15], data, 60); - -#define S(x, n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) - -#define P(a, b, c, d, k, s, t) \ -{ \ - a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ -} - - A = ctx->state[0]; - B = ctx->state[1]; - C = ctx->state[2]; - D = ctx->state[3]; - -#define F(x, y, z) (z ^ (x & (y ^ z))) - - P(A, B, C, D, 0, 7, 0xD76AA478); - P(D, A, B, C, 1, 12, 0xE8C7B756); - P(C, D, A, B, 2, 17, 0x242070DB); - P(B, C, D, A, 3, 22, 0xC1BDCEEE); - P(A, B, C, D, 4, 7, 0xF57C0FAF); - P(D, A, B, C, 5, 12, 0x4787C62A); - P(C, D, A, B, 6, 17, 0xA8304613); - P(B, C, D, A, 7, 22, 0xFD469501); - P(A, B, C, D, 8, 7, 0x698098D8); - P(D, A, B, C, 9, 12, 0x8B44F7AF); - P(C, D, A, B, 10, 17, 0xFFFF5BB1); - P(B, C, D, A, 11, 22, 0x895CD7BE); - P(A, B, C, D, 12, 7, 0x6B901122); - P(D, A, B, C, 13, 12, 0xFD987193); - P(C, D, A, B, 14, 17, 0xA679438E); - P(B, C, D, A, 15, 22, 0x49B40821); - -#undef F - -#define F(x, y, z) (y ^ (z & (x ^ y))) - - P(A, B, C, D, 1, 5, 0xF61E2562); - P(D, A, B, C, 6, 9, 0xC040B340); - P(C, D, A, B, 11, 14, 0x265E5A51); - P(B, C, D, A, 0, 20, 0xE9B6C7AA); - P(A, B, C, D, 5, 5, 0xD62F105D); - P(D, A, B, C, 10, 9, 0x02441453); - P(C, D, A, B, 15, 14, 0xD8A1E681); - P(B, C, D, A, 4, 20, 0xE7D3FBC8); - P(A, B, C, D, 9, 5, 0x21E1CDE6); - P(D, A, B, C, 14, 9, 0xC33707D6); - P(C, D, A, B, 3, 14, 0xF4D50D87); - P(B, C, D, A, 8, 20, 0x455A14ED); - P(A, B, C, D, 13, 5, 0xA9E3E905); - P(D, A, B, C, 2, 9, 0xFCEFA3F8); - P(C, D, A, B, 7, 14, 0x676F02D9); - P(B, C, D, A, 12, 20, 0x8D2A4C8A); - -#undef F - -#define F(x, y, z) (x ^ y ^ z) - - P(A, B, C, D, 5, 4, 0xFFFA3942); - P(D, A, B, C, 8, 11, 0x8771F681); - P(C, D, A, B, 11, 16, 0x6D9D6122); - P(B, C, D, A, 14, 23, 0xFDE5380C); - P(A, B, C, D, 1, 4, 0xA4BEEA44); - P(D, A, B, C, 4, 11, 0x4BDECFA9); - P(C, D, A, B, 7, 16, 0xF6BB4B60); - P(B, C, D, A, 10, 23, 0xBEBFBC70); - P(A, B, C, D, 13, 4, 0x289B7EC6); - P(D, A, B, C, 0, 11, 0xEAA127FA); - P(C, D, A, B, 3, 16, 0xD4EF3085); - P(B, C, D, A, 6, 23, 0x04881D05); - P(A, B, C, D, 9, 4, 0xD9D4D039); - P(D, A, B, C, 12, 11, 0xE6DB99E5); - P(C, D, A, B, 15, 16, 0x1FA27CF8); - P(B, C, D, A, 2, 23, 0xC4AC5665); - -#undef F - -#define F(x, y, z) (y ^ (x | ~z)) - - P(A, B, C, D, 0, 6, 0xF4292244); - P(D, A, B, C, 7, 10, 0x432AFF97); - P(C, D, A, B, 14, 15, 0xAB9423A7); - P(B, C, D, A, 5, 21, 0xFC93A039); - P(A, B, C, D, 12, 6, 0x655B59C3); - P(D, A, B, C, 3, 10, 0x8F0CCC92); - P(C, D, A, B, 10, 15, 0xFFEFF47D); - P(B, C, D, A, 1, 21, 0x85845DD1); - P(A, B, C, D, 8, 6, 0x6FA87E4F); - P(D, A, B, C, 15, 10, 0xFE2CE6E0); - P(C, D, A, B, 6, 15, 0xA3014314); - P(B, C, D, A, 13, 21, 0x4E0811A1); - P(A, B, C, D, 4, 6, 0xF7537E82); - P(D, A, B, C, 11, 10, 0xBD3AF235); - P(C, D, A, B, 2, 15, 0x2AD7D2BB); - P(B, C, D, A, 9, 21, 0xEB86D391); - -#undef F - - ctx->state[0] += A; - ctx->state[1] += B; - ctx->state[2] += C; - ctx->state[3] += D; -} - -void md5_update(md5_context *ctx, const uint8 *input, uint32 length) { - uint32 left, fill; - - if (!length) - return; - - left = ctx->total[0] & 0x3F; - fill = 64 - left; - - ctx->total[0] += length; - ctx->total[0] &= 0xFFFFFFFF; - - if (ctx->total[0] < length) - ctx->total[1]++; - - if (left && length >= fill) { - memcpy((void *)(ctx->buffer + left), (const void *)input, fill); - md5_process(ctx, ctx->buffer); - length -= fill; - input += fill; - left = 0; - } - - while (length >= 64) { - md5_process(ctx, input); - length -= 64; - input += 64; - } - - if (length) { - memcpy((void *)(ctx->buffer + left), (const void *)input, length); - } -} - -static const uint8 md5_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 -}; - -void md5_finish(md5_context *ctx, uint8 digest[16]) { - uint32 last, padn; - uint32 high, low; - uint8 msglen[8]; - - high = (ctx->total[0] >> 29) | (ctx->total[1] << 3); - low = (ctx->total[0] << 3); - - PUT_UINT32(low, msglen, 0); - PUT_UINT32(high, msglen, 4); - - last = ctx->total[0] & 0x3F; - padn = (last < 56) ? (56 - last) : (120 - last); - - md5_update(ctx, md5_padding, padn); - md5_update(ctx, msglen, 8); - - PUT_UINT32(ctx->state[0], digest, 0); - PUT_UINT32(ctx->state[1], digest, 4); - PUT_UINT32(ctx->state[2], digest, 8); - PUT_UINT32(ctx->state[3], digest, 12); -} - -bool md5_file(const char *name, uint8 digest[16], uint32 length) { - FILE *f; - - f = fopen(name, "rb"); - if (f == NULL) { - printf("md5_file couldn't open '%s'\n", name); - return false; - } - - md5_context ctx; - uint32 i; - unsigned char buf[1000]; - bool restricted = (length != 0); - int readlen; - - if (!restricted || sizeof(buf) <= length) - readlen = sizeof(buf); - else - readlen = length; - - md5_starts(&ctx); - - - while ((i = (uint32)fread(buf, 1, readlen, f)) > 0) { - md5_update(&ctx, buf, i); - - length -= i; - if (restricted && length == 0) - break; - - if (restricted && sizeof(buf) > length) - readlen = length; - } - - md5_finish(&ctx, digest); - fclose(f); - return true; -} |