mirror of
https://github.com/sfall-team/sfall.git
synced 2026-07-27 16:52:34 -07:00
NovaRain
ec0baf3065
Changed SkipSizeCheck and ExtraCRC to not require enabling sfall debugging mode.
115 lines
5.7 KiB
C++
115 lines
5.7 KiB
C++
/*
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* sfall
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* Copyright (C) 2009, 2010 The sfall team
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "main.h"
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#include <stdio.h>
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#include "version.h"
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#include "Logging.h"
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static const DWORD ExpectedSize=0x00122800;
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static const DWORD ExpectedCRC[]= {0xe1680293, 0xef34f989};
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static void inline Fail(const char* a) { MessageBoxA(0, a, "Error", MB_TASKMODAL); ExitProcess(1); }
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static const DWORD CRC_table[256] = {
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0x00000000, 0x0A5F4D75, 0x14BE9AEA, 0x1EE1D79F, 0x14C5EB57, 0x1E9AA622, 0x007B71BD, 0x0A243CC8,
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0x1433082D, 0x1E6C4558, 0x008D92C7, 0x0AD2DFB2, 0x00F6E37A, 0x0AA9AE0F, 0x14487990, 0x1E1734E5,
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0x15DECED9, 0x1F8183AC, 0x01605433, 0x0B3F1946, 0x011B258E, 0x0B4468FB, 0x15A5BF64, 0x1FFAF211,
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0x01EDC6F4, 0x0BB28B81, 0x15535C1E, 0x1F0C116B, 0x15282DA3, 0x1F7760D6, 0x0196B749, 0x0BC9FA3C,
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0x16054331, 0x1C5A0E44, 0x02BBD9DB, 0x08E494AE, 0x02C0A866, 0x089FE513, 0x167E328C, 0x1C217FF9,
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0x02364B1C, 0x08690669, 0x1688D1F6, 0x1CD79C83, 0x16F3A04B, 0x1CACED3E, 0x024D3AA1, 0x081277D4,
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0x03DB8DE8, 0x0984C09D, 0x17651702, 0x1D3A5A77, 0x171E66BF, 0x1D412BCA, 0x03A0FC55, 0x09FFB120,
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0x17E885C5, 0x1DB7C8B0, 0x03561F2F, 0x0909525A, 0x032D6E92, 0x097223E7, 0x1793F478, 0x1DCCB90D,
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0x11B258E1, 0x1BED1594, 0x050CC20B, 0x0F538F7E, 0x0577B3B6, 0x0F28FEC3, 0x11C9295C, 0x1B966429,
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0x058150CC, 0x0FDE1DB9, 0x113FCA26, 0x1B608753, 0x1144BB9B, 0x1B1BF6EE, 0x05FA2171, 0x0FA56C04,
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0x046C9638, 0x0E33DB4D, 0x10D20CD2, 0x1A8D41A7, 0x10A97D6F, 0x1AF6301A, 0x0417E785, 0x0E48AAF0,
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0x105F9E15, 0x1A00D360, 0x04E104FF, 0x0EBE498A, 0x049A7542, 0x0EC53837, 0x1024EFA8, 0x1A7BA2DD,
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0x07B71BD0, 0x0DE856A5, 0x1309813A, 0x1956CC4F, 0x1372F087, 0x192DBDF2, 0x07CC6A6D, 0x0D932718,
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0x138413FD, 0x19DB5E88, 0x073A8917, 0x0D65C462, 0x0741F8AA, 0x0D1EB5DF, 0x13FF6240, 0x19A02F35,
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0x1269D509, 0x1836987C, 0x06D74FE3, 0x0C880296, 0x06AC3E5E, 0x0CF3732B, 0x1212A4B4, 0x184DE9C1,
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0x065ADD24, 0x0C059051, 0x12E447CE, 0x18BB0ABB, 0x129F3673, 0x18C07B06, 0x0621AC99, 0x0C7EE1EC,
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0x1EDC6F41, 0x14832234, 0x0A62F5AB, 0x003DB8DE, 0x0A198416, 0x0046C963, 0x1EA71EFC, 0x14F85389,
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0x0AEF676C, 0x00B02A19, 0x1E51FD86, 0x140EB0F3, 0x1E2A8C3B, 0x1475C14E, 0x0A9416D1, 0x00CB5BA4,
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0x0B02A198, 0x015DECED, 0x1FBC3B72, 0x15E37607, 0x1FC74ACF, 0x159807BA, 0x0B79D025, 0x01269D50,
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0x1F31A9B5, 0x156EE4C0, 0x0B8F335F, 0x01D07E2A, 0x0BF442E2, 0x01AB0F97, 0x1F4AD808, 0x1515957D,
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0x08D92C70, 0x02866105, 0x1C67B69A, 0x1638FBEF, 0x1C1CC727, 0x16438A52, 0x08A25DCD, 0x02FD10B8,
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0x1CEA245D, 0x16B56928, 0x0854BEB7, 0x020BF3C2, 0x082FCF0A, 0x0270827F, 0x1C9155E0, 0x16CE1895,
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0x1D07E2A9, 0x1758AFDC, 0x09B97843, 0x03E63536, 0x09C209FE, 0x039D448B, 0x1D7C9314, 0x1723DE61,
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0x0934EA84, 0x036BA7F1, 0x1D8A706E, 0x17D53D1B, 0x1DF101D3, 0x17AE4CA6, 0x094F9B39, 0x0310D64C,
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0x0F6E37A0, 0x05317AD5, 0x1BD0AD4A, 0x118FE03F, 0x1BABDCF7, 0x11F49182, 0x0F15461D, 0x054A0B68,
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0x1B5D3F8D, 0x110272F8, 0x0FE3A567, 0x05BCE812, 0x0F98D4DA, 0x05C799AF, 0x1B264E30, 0x11790345,
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0x1AB0F979, 0x10EFB40C, 0x0E0E6393, 0x04512EE6, 0x0E75122E, 0x042A5F5B, 0x1ACB88C4, 0x1094C5B1,
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0x0E83F154, 0x04DCBC21, 0x1A3D6BBE, 0x106226CB, 0x1A461A03, 0x10195776, 0x0EF880E9, 0x04A7CD9C,
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0x196B7491, 0x133439E4, 0x0DD5EE7B, 0x078AA30E, 0x0DAE9FC6, 0x07F1D2B3, 0x1910052C, 0x134F4859,
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0x0D587CBC, 0x070731C9, 0x19E6E656, 0x13B9AB23, 0x199D97EB, 0x13C2DA9E, 0x0D230D01, 0x077C4074,
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0x0CB5BA48, 0x06EAF73D, 0x180B20A2, 0x12546DD7, 0x1870511F, 0x122F1C6A, 0x0CCECBF5, 0x06918680,
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0x1886B265, 0x12D9FF10, 0x0C38288F, 0x066765FA, 0x0C435932, 0x061C1447, 0x18FDC3D8, 0x12A28EAD
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};
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static DWORD crcInternal(BYTE* data, DWORD size) {
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DWORD crc=0xffffffff;
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for (DWORD i = 0;i < size;i++) {
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crc = CRC_table[(((BYTE)(crc)) ^ data[i])] ^ (crc >> 8);
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}
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return crc^0xffffffff;
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}
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void CRC(const char* filepath) {
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char buf[512];
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HANDLE h = CreateFileA(filepath, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
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if (h == INVALID_HANDLE_VALUE) Fail("Cannot open fallout2.exe for CRC check");
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DWORD size = GetFileSize(h, 0), crc;
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bool sizeMatch = (size == ExpectedSize);
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if (!sizeMatch && GetPrivateProfileIntA("Debugging", "SkipSizeCheck", 0, ".\\ddraw.ini")) {
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sizeMatch = true;
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}
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if (!sizeMatch) {
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sprintf_s(buf, "You're trying to use sfall with an incompatible version of fallout\nWas expecting '" TARGETVERSION "'\n\nfallout2.exe was an unexpected size. Expected 0x%x but got 0x%x", ExpectedSize, size);
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Fail(buf);
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}
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BYTE* bytes = new BYTE[size];
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ReadFile(h, bytes, size, &crc, 0);
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crc = crcInternal(bytes, size);
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bool matchedCRC = false;
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if (GetPrivateProfileStringA("Debugging", "ExtraCRC", "", buf, 512, ".\\ddraw.ini") > 0) {
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char *TestCRC;
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TestCRC = strtok(buf, ",");
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while (TestCRC) {
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DWORD extraCRC = strtoul(TestCRC, 0, 16);
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if (crc == extraCRC) matchedCRC = true;
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TestCRC = strtok(0, ",");
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}
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}
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for (int i=0; i < sizeof(ExpectedCRC)/4; i++) {
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if (crc == ExpectedCRC[i]) matchedCRC = true;
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}
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if (!matchedCRC) {
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sprintf_s(buf, "You're trying to use sfall with an incompatible version of fallout\nWas expecting '" TARGETVERSION "'\n\nfallout2.exe had an unexpected crc. Expected 0x%x but got 0x%x", ExpectedCRC[0], crc);
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Fail(buf);
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}
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CloseHandle(h);
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delete[] bytes;
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}
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