From 3914781ebfd5cb22717cc207cb3d37d8754d0eb7 Mon Sep 17 00:00:00 2001 From: briaguya <70942617+briaguya-ai@users.noreply.github.com> Date: Mon, 14 Nov 2022 05:22:34 -0500 Subject: Import libultraship as a submodule (#1943) Co-authored-by: briaguya Co-authored-by: Christopher Leggett Co-authored-by: David Chavez --- StormLib/src/SBaseCommon.cpp | 2045 ------------------------------------------ 1 file changed, 2045 deletions(-) delete mode 100644 StormLib/src/SBaseCommon.cpp (limited to 'StormLib/src/SBaseCommon.cpp') diff --git a/StormLib/src/SBaseCommon.cpp b/StormLib/src/SBaseCommon.cpp deleted file mode 100644 index 79ae4b9b5..000000000 --- a/StormLib/src/SBaseCommon.cpp +++ /dev/null @@ -1,2045 +0,0 @@ -/*****************************************************************************/ -/* SBaseCommon.cpp Copyright (c) Ladislav Zezula 2003 */ -/*---------------------------------------------------------------------------*/ -/* Common functions for StormLib, used by all SFile*** modules */ -/*---------------------------------------------------------------------------*/ -/* Date Ver Who Comment */ -/* -------- ---- --- ------- */ -/* 24.03.03 1.00 Lad The first version of SFileCommon.cpp */ -/* 19.11.03 1.01 Dan Big endian handling */ -/* 12.06.04 1.01 Lad Renamed to SCommon.cpp */ -/* 06.09.10 1.01 Lad Renamed to SBaseCommon.cpp */ -/*****************************************************************************/ - -#define __STORMLIB_SELF__ -#include "StormLib.h" -#include "StormCommon.h" - -char StormLibCopyright[] = "StormLib v " STORMLIB_VERSION_STRING " Copyright Ladislav Zezula 1998-2014"; - -//----------------------------------------------------------------------------- -// Local variables - -DWORD g_dwMpqSignature = ID_MPQ; // Marker for MPQ header -DWORD g_dwHashTableKey = MPQ_KEY_HASH_TABLE; // Key for hash table -DWORD g_dwBlockTableKey = MPQ_KEY_BLOCK_TABLE; // Key for block table -LCID g_lcFileLocale = LANG_NEUTRAL; // File locale -USHORT wPlatform = 0; // File platform - -//----------------------------------------------------------------------------- -// Conversion to uppercase/lowercase - -// Converts ASCII characters to lowercase -// Converts slash (0x2F) to backslash (0x5C) -unsigned char AsciiToLowerTable[256] = -{ - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x5C, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, - 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, - 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, - 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, - 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, - 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, - 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, - 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF -}; - -// Converts ASCII characters to uppercase -// Converts slash (0x2F) to backslash (0x5C) -unsigned char AsciiToUpperTable[256] = -{ - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x5C, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, - 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, - 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, - 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, - 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF -}; - -// Converts ASCII characters to uppercase -// Does NOT convert slash (0x2F) to backslash (0x5C) -unsigned char AsciiToUpperTable_Slash[256] = -{ - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, - 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, - 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, - 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, - 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF -}; - -// 5C (\) -> 2F (/) -unsigned char AsciiToUpperTable_FS2BS[256] = -{ - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x2F, 0x5D, 0x5E, 0x5F, - 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, - 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, - 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, - 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF -}; - -// 2F (/) -> 5C (\) -unsigned char AsciiToUpperTable_BS2FS[256] = -{ - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x5C, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, - 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, - 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, - 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, - 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, - 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, - 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, - 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF -}; - - -//----------------------------------------------------------------------------- -// Safe string functions (for ANSI builds) - -char * StringCopy(char * szTarget, size_t cchTarget, const char * szSource) -{ - size_t cchSource = 0; - - if(cchTarget > 0) - { - cchSource = strlen(szSource); - - if(cchSource >= cchTarget) - cchSource = cchTarget - 1; - - memcpy(szTarget, szSource, cchSource); - szTarget[cchSource] = 0; - } - - return szTarget + cchSource; -} - -void StringCat(char * szTarget, size_t cchTargetMax, const char * szSource) -{ - // Get the current length of the target - size_t cchTarget = strlen(szTarget); - - // Copy the string to the target - if(cchTarget < cchTargetMax) - { - StringCopy(szTarget + cchTarget, (cchTargetMax - cchTarget), szSource); - } -} - -void StringCreatePseudoFileName(char * szBuffer, size_t cchMaxChars, unsigned int nIndex, const char * szExtension) -{ - char * szBufferEnd = szBuffer + cchMaxChars; - - // "File" - szBuffer = StringCopy(szBuffer, (szBufferEnd - szBuffer), "File"); - - // Number - szBuffer = IntToString(szBuffer, szBufferEnd - szBuffer + 1, nIndex, 8); - - // Dot - if(szBuffer < szBufferEnd) - *szBuffer++ = '.'; - - // Extension - while(szExtension[0] == '.') - szExtension++; - StringCopy(szBuffer, (szBufferEnd - szBuffer), szExtension); -} - -//----------------------------------------------------------------------------- -// Utility functions (UNICODE) only exist in the ANSI version of the library -// In ANSI builds, TCHAR = char, so we don't need these functions implemented - -#ifdef _UNICODE -void StringCopy(TCHAR * szTarget, size_t cchTarget, const char * szSource) -{ - if(cchTarget > 0) - { - size_t cchSource = strlen(szSource); - - if(cchSource >= cchTarget) - cchSource = cchTarget - 1; - - mbstowcs(szTarget, szSource, cchSource); - szTarget[cchSource] = 0; - } -} - -void StringCopy(char * szTarget, size_t cchTarget, const TCHAR * szSource) -{ - if(cchTarget > 0) - { - size_t cchSource = _tcslen(szSource); - - if(cchSource >= cchTarget) - cchSource = cchTarget - 1; - - wcstombs(szTarget, szSource, cchSource); - szTarget[cchSource] = 0; - } -} - -void StringCopy(TCHAR * szTarget, size_t cchTarget, const TCHAR * szSource) -{ - if(cchTarget > 0) - { - size_t cchSource = _tcslen(szSource); - - if(cchSource >= cchTarget) - cchSource = cchTarget - 1; - - memcpy(szTarget, szSource, cchSource * sizeof(TCHAR)); - szTarget[cchSource] = 0; - } -} - -void StringCat(TCHAR * szTarget, size_t cchTargetMax, const TCHAR * szSource) -{ - // Get the current length of the target - size_t cchTarget = _tcslen(szTarget); - - // Copy the string to the target - if(cchTarget < cchTargetMax) - { - StringCopy(szTarget + cchTarget, (cchTargetMax - cchTarget), szSource); - } -} -#endif - -//----------------------------------------------------------------------------- -// Storm hashing functions - -#define STORM_BUFFER_SIZE 0x500 -#define HASH_INDEX_MASK(ha) (ha->pHeader->dwHashTableSize ? (ha->pHeader->dwHashTableSize - 1) : 0) - -static DWORD StormBuffer[STORM_BUFFER_SIZE]; // Buffer for the decryption engine -static bool bMpqCryptographyInitialized = false; - -void InitializeMpqCryptography() -{ - DWORD dwSeed = 0x00100001; - DWORD index1 = 0; - DWORD index2 = 0; - int i; - - // Initialize the decryption buffer. - // Do nothing if already done. - if(bMpqCryptographyInitialized == false) - { - for(index1 = 0; index1 < 0x100; index1++) - { - for(index2 = index1, i = 0; i < 5; i++, index2 += 0x100) - { - DWORD temp1, temp2; - - dwSeed = (dwSeed * 125 + 3) % 0x2AAAAB; - temp1 = (dwSeed & 0xFFFF) << 0x10; - - dwSeed = (dwSeed * 125 + 3) % 0x2AAAAB; - temp2 = (dwSeed & 0xFFFF); - - StormBuffer[index2] = (temp1 | temp2); - } - } - - // Also register both MD5 and SHA1 hash algorithms - register_hash(&md5_desc); - register_hash(&sha1_desc); - - // Use LibTomMath as support math library for LibTomCrypt - ltc_mp = ltm_desc; - - // Don't do that again - bMpqCryptographyInitialized = true; - } -} - -// -// Note: Implementation of this function in WorldEdit.exe and storm.dll -// incorrectly treats the character as signed, which leads to the -// a buffer underflow if the character in the file name >= 0x80: -// The following steps happen when *pbKey == 0xBF and dwHashType == 0x0000 -// (calculating hash index) -// -// 1) Result of AsciiToUpperTable_Slash[*pbKey++] is sign-extended to 0xffffffbf -// 2) The "ch" is added to dwHashType (0xffffffbf + 0x0000 => 0xffffffbf) -// 3) The result is used as index to the StormBuffer table, -// thus dereferences a random value BEFORE the begin of StormBuffer. -// -// As result, MPQs containing files with non-ANSI characters will not work between -// various game versions and localizations. Even WorldEdit, after importing a file -// with Korean characters in the name, cannot open the file back. -// -DWORD HashString(const char * szFileName, DWORD dwHashType) -{ - LPBYTE pbKey = (BYTE *)szFileName; - DWORD dwSeed1 = 0x7FED7FED; - DWORD dwSeed2 = 0xEEEEEEEE; - DWORD ch; - - while(*pbKey != 0) - { - // Convert the input character to uppercase - // Convert slash (0x2F) to backslash (0x5C) - ch = AsciiToUpperTable[*pbKey++]; - - dwSeed1 = StormBuffer[dwHashType + ch] ^ (dwSeed1 + dwSeed2); - dwSeed2 = ch + dwSeed1 + dwSeed2 + (dwSeed2 << 5) + 3; - } - - return dwSeed1; -} - -DWORD HashStringSlash(const char * szFileName, DWORD dwHashType) -{ - LPBYTE pbKey = (BYTE *)szFileName; - DWORD dwSeed1 = 0x7FED7FED; - DWORD dwSeed2 = 0xEEEEEEEE; - DWORD ch; - - while(*pbKey != 0) - { - // Convert the input character to uppercase - // DON'T convert slash (0x2F) to backslash (0x5C) - ch = AsciiToUpperTable_FS2BS[*pbKey++]; - //ch = AsciiToUpperTable[*pbKey++]; - - dwSeed1 = StormBuffer[dwHashType + ch] ^ (dwSeed1 + dwSeed2); - dwSeed2 = ch + dwSeed1 + dwSeed2 + (dwSeed2 << 5) + 3; - } - - return dwSeed1; -} - -DWORD HashStringSlash2(const char* szFileName, DWORD dwHashType) -{ - LPBYTE pbKey = (BYTE*)szFileName; - DWORD dwSeed1 = 0x7FED7FED; - DWORD dwSeed2 = 0xEEEEEEEE; - DWORD ch; - - while (*pbKey != 0) - { - // Convert the input character to uppercase - // DON'T convert slash (0x2F) to backslash (0x5C) - //ch = AsciiToUpperTable_Slash[*pbKey++]; - ch = AsciiToUpperTable_BS2FS[*pbKey++]; - - dwSeed1 = StormBuffer[dwHashType + ch] ^ (dwSeed1 + dwSeed2); - dwSeed2 = ch + dwSeed1 + dwSeed2 + (dwSeed2 << 5) + 3; - } - - return dwSeed1; -} - -DWORD HashStringLower(const char * szFileName, DWORD dwHashType) -{ - LPBYTE pbKey = (BYTE *)szFileName; - DWORD dwSeed1 = 0x7FED7FED; - DWORD dwSeed2 = 0xEEEEEEEE; - DWORD ch; - - while(*pbKey != 0) - { - // Convert the input character to lower - // DON'T convert slash (0x2F) to backslash (0x5C) - ch = AsciiToLowerTable[*pbKey++]; - - dwSeed1 = StormBuffer[dwHashType + ch] ^ (dwSeed1 + dwSeed2); - dwSeed2 = ch + dwSeed1 + dwSeed2 + (dwSeed2 << 5) + 3; - } - - return dwSeed1; -} - -//----------------------------------------------------------------------------- -// Calculates the hash table size for a given amount of files - -// Returns the nearest higher power of two. -// If the value is already a power of two, returns the same value -DWORD GetNearestPowerOfTwo(DWORD dwFileCount) -{ - dwFileCount --; - - dwFileCount |= dwFileCount >> 1; - dwFileCount |= dwFileCount >> 2; - dwFileCount |= dwFileCount >> 4; - dwFileCount |= dwFileCount >> 8; - dwFileCount |= dwFileCount >> 16; - - return dwFileCount + 1; -} -/* -DWORD GetNearestPowerOfTwo(DWORD dwFileCount) -{ - DWORD dwPowerOfTwo = HASH_TABLE_SIZE_MIN; - - // For zero files, there is no hash table needed - if(dwFileCount == 0) - return 0; - - // Round the hash table size up to the nearest power of two - // Don't allow the hash table size go over allowed maximum - while(dwPowerOfTwo < HASH_TABLE_SIZE_MAX && dwPowerOfTwo < dwFileCount) - dwPowerOfTwo <<= 1; - return dwPowerOfTwo; -} -*/ -//----------------------------------------------------------------------------- -// Calculates a Jenkin's Encrypting and decrypting MPQ file data - -ULONGLONG HashStringJenkins(const char * szFileName) -{ - LPBYTE pbFileName = (LPBYTE)szFileName; - char szNameBuff[0x108]; - size_t nLength = 0; - unsigned int primary_hash = 1; - unsigned int secondary_hash = 2; - - // Normalize the file name - convert to uppercase, and convert "/" to "\\". - if(pbFileName != NULL) - { - char * szNamePtr = szNameBuff; - char * szNameEnd = szNamePtr + sizeof(szNameBuff); - - // Normalize the file name. Doesn't have to be zero terminated for hashing - while(szNamePtr < szNameEnd && pbFileName[0] != 0) - *szNamePtr++ = (char)AsciiToLowerTable[*pbFileName++]; - nLength = szNamePtr - szNameBuff; - } - - // Thanks Quantam for finding out what the algorithm is. - // I am really getting old for reversing large chunks of assembly - // that does hashing :-) - hashlittle2(szNameBuff, nLength, &secondary_hash, &primary_hash); - - // Combine those 2 together - return ((ULONGLONG)primary_hash << 0x20) | (ULONGLONG)secondary_hash; -} - -//----------------------------------------------------------------------------- -// Default flags for (attributes) and (listfile) - -DWORD GetDefaultSpecialFileFlags(DWORD dwFileSize, USHORT wFormatVersion) -{ - // Fixed for format 1.0 - if(wFormatVersion == MPQ_FORMAT_VERSION_1) - return MPQ_FILE_COMPRESS | MPQ_FILE_ENCRYPTED | MPQ_FILE_FIX_KEY; - - // Size-dependent for formats 2.0-4.0 - return (dwFileSize > 0x4000) ? (MPQ_FILE_COMPRESS | MPQ_FILE_SECTOR_CRC) : (MPQ_FILE_COMPRESS | MPQ_FILE_SINGLE_UNIT); -} - - -//----------------------------------------------------------------------------- -// Encrypting/Decrypting MPQ data block - -static DWORD EncryptUInt32Unaligned(LPDWORD DataPointer, DWORD i, DWORD dwXorKey) -{ - LPBYTE pbDataPointer = (LPBYTE)(DataPointer + i); - LPBYTE pbXorKey = (LPBYTE)(&dwXorKey); - DWORD dwValue32; - - // Retrieve the value - dwValue32 = ((DWORD)pbDataPointer[0] << 0x00) | - ((DWORD)pbDataPointer[1] << 0x08) | - ((DWORD)pbDataPointer[2] << 0x10) | - ((DWORD)pbDataPointer[3] << 0x18); - - // Perform unaligned XOR - pbDataPointer[0] = (pbDataPointer[0] ^ pbXorKey[0]); - pbDataPointer[1] = (pbDataPointer[1] ^ pbXorKey[1]); - pbDataPointer[2] = (pbDataPointer[2] ^ pbXorKey[2]); - pbDataPointer[3] = (pbDataPointer[3] ^ pbXorKey[3]); - return dwValue32; -} - -void EncryptMpqBlock(void * pvDataBlock, DWORD dwLength, DWORD dwKey1) -{ - LPDWORD DataPointer = (LPDWORD)pvDataBlock; - DWORD dwValue32; - DWORD dwKey2 = 0xEEEEEEEE; - - // Round to DWORDs - dwLength >>= 2; - - // We need different approach on non-aligned buffers - if(STORMLIB_DWORD_ALIGNED(DataPointer)) - { - for(DWORD i = 0; i < dwLength; i++) - { - // Modify the second key - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - - // We can use 32-bit approach, when the buffer is aligned - DataPointer[i] = (dwValue32 = DataPointer[i]) ^ (dwKey1 + dwKey2); - - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = dwValue32 + dwKey2 + (dwKey2 << 5) + 3; - } - } - else - { - for(DWORD i = 0; i < dwLength; i++) - { - // Modify the second key - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - - // The data are unaligned. Make sure we don't cause data misalignment error - dwValue32 = EncryptUInt32Unaligned(DataPointer, i, (dwKey1 + dwKey2)); - - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = dwValue32 + dwKey2 + (dwKey2 << 5) + 3; - } - } -} - -static DWORD DecryptUInt32Unaligned(LPDWORD DataPointer, DWORD i, DWORD dwXorKey) -{ - LPBYTE pbDataPointer = (LPBYTE)(DataPointer + i); - LPBYTE pbXorKey = (LPBYTE)(&dwXorKey); - - // Perform unaligned XOR - pbDataPointer[0] = (pbDataPointer[0] ^ pbXorKey[0]); - pbDataPointer[1] = (pbDataPointer[1] ^ pbXorKey[1]); - pbDataPointer[2] = (pbDataPointer[2] ^ pbXorKey[2]); - pbDataPointer[3] = (pbDataPointer[3] ^ pbXorKey[3]); - - // Retrieve the value - return ((DWORD)pbDataPointer[0] << 0x00) | - ((DWORD)pbDataPointer[1] << 0x08) | - ((DWORD)pbDataPointer[2] << 0x10) | - ((DWORD)pbDataPointer[3] << 0x18); -} - -void DecryptMpqBlock(void * pvDataBlock, DWORD dwLength, DWORD dwKey1) -{ - LPDWORD DataPointer = (LPDWORD)pvDataBlock; - DWORD dwValue32; - DWORD dwKey2 = 0xEEEEEEEE; - - // Round to DWORDs - dwLength >>= 2; - - // We need different approach on non-aligned buffers - if(STORMLIB_DWORD_ALIGNED(DataPointer)) - { - for(DWORD i = 0; i < dwLength; i++) - { - // Modify the second key - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - - // We can use 32-bit approach, when the buffer is aligned - DataPointer[i] = dwValue32 = DataPointer[i] ^ (dwKey1 + dwKey2); - - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = dwValue32 + dwKey2 + (dwKey2 << 5) + 3; - } - } - else - { - for(DWORD i = 0; i < dwLength; i++) - { - // Modify the second key - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - - // The data are unaligned. Make sure we don't cause data misalignment error - dwValue32 = DecryptUInt32Unaligned(DataPointer, i, (dwKey1 + dwKey2)); - - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = dwValue32 + dwKey2 + (dwKey2 << 5) + 3; - } - } -} - -/** - * Functions tries to get file decryption key. This comes from these facts - * - * - We know the decrypted value of the first DWORD in the encrypted data - * - We know the decrypted value of the second DWORD (at least aproximately) - * - There is only 256 variants of how the second key is modified - * - * The first iteration of dwKey1 and dwKey2 is this: - * - * dwKey2 = 0xEEEEEEEE + StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)] - * dwDecrypted0 = DataBlock[0] ^ (dwKey1 + dwKey2); - * - * This means: - * - * (dwKey1 + dwKey2) = DataBlock[0] ^ dwDecrypted0; - * - */ - -DWORD DetectFileKeyBySectorSize(LPDWORD EncryptedData, DWORD dwSectorSize, DWORD dwDecrypted0) -{ - DWORD dwDecrypted1Max = dwSectorSize + dwDecrypted0; - DWORD dwKey1PlusKey2; - DWORD DataBlock[2]; - - // We must have at least 2 DWORDs there to be able to decrypt something - if(dwSectorSize < 0x08) - return 0; - - // Get the value of the combined encryption key - dwKey1PlusKey2 = (EncryptedData[0] ^ dwDecrypted0) - 0xEEEEEEEE; - - // Try all 256 combinations of dwKey1 - for(DWORD i = 0; i < 0x100; i++) - { - DWORD dwSaveKey1; - DWORD dwKey1 = dwKey1PlusKey2 - StormBuffer[MPQ_HASH_KEY2_MIX + i]; - DWORD dwKey2 = 0xEEEEEEEE; - - // Modify the second key and decrypt the first DWORD - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - DataBlock[0] = EncryptedData[0] ^ (dwKey1 + dwKey2); - - // Did we obtain the same value like dwDecrypted0? - if(DataBlock[0] == dwDecrypted0) - { - // Save this key value. Increment by one because - // we are decrypting sector offset table - dwSaveKey1 = dwKey1 + 1; - - // Rotate both keys - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = DataBlock[0] + dwKey2 + (dwKey2 << 5) + 3; - - // Modify the second key again and decrypt the second DWORD - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - DataBlock[1] = EncryptedData[1] ^ (dwKey1 + dwKey2); - - // Now compare the results - if(DataBlock[1] <= dwDecrypted1Max) - return dwSaveKey1; - } - } - - // Key not found - return 0; -} - -// Function tries to detect file encryption key based on expected file content -// It is the same function like before, except that we know the value of the second DWORD -DWORD DetectFileKeyByKnownContent(void * pvEncryptedData, DWORD dwDecrypted0, DWORD dwDecrypted1) -{ - LPDWORD EncryptedData = (LPDWORD)pvEncryptedData; - DWORD dwKey1PlusKey2; - DWORD DataBlock[2]; - - // Get the value of the combined encryption key - dwKey1PlusKey2 = (EncryptedData[0] ^ dwDecrypted0) - 0xEEEEEEEE; - - // Try all 256 combinations of dwKey1 - for(DWORD i = 0; i < 0x100; i++) - { - DWORD dwSaveKey1; - DWORD dwKey1 = dwKey1PlusKey2 - StormBuffer[MPQ_HASH_KEY2_MIX + i]; - DWORD dwKey2 = 0xEEEEEEEE; - - // Modify the second key and decrypt the first DWORD - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - DataBlock[0] = EncryptedData[0] ^ (dwKey1 + dwKey2); - - // Did we obtain the same value like dwDecrypted0? - if(DataBlock[0] == dwDecrypted0) - { - // Save this key value - dwSaveKey1 = dwKey1; - - // Rotate both keys - dwKey1 = ((~dwKey1 << 0x15) + 0x11111111) | (dwKey1 >> 0x0B); - dwKey2 = DataBlock[0] + dwKey2 + (dwKey2 << 5) + 3; - - // Modify the second key again and decrypt the second DWORD - dwKey2 += StormBuffer[MPQ_HASH_KEY2_MIX + (dwKey1 & 0xFF)]; - DataBlock[1] = EncryptedData[1] ^ (dwKey1 + dwKey2); - - // Now compare the results - if(DataBlock[1] == dwDecrypted1) - return dwSaveKey1; - } - } - - // Key not found - return 0; -} - -DWORD DetectFileKeyByContent(void * pvEncryptedData, DWORD dwSectorSize, DWORD dwFileSize) -{ - DWORD dwFileKey; - - // Try to break the file encryption key as if it was a WAVE file - if(dwSectorSize >= 0x0C) - { - dwFileKey = DetectFileKeyByKnownContent(pvEncryptedData, 0x46464952, dwFileSize - 8); - if(dwFileKey != 0) - return dwFileKey; - } - - // Try to break the encryption key as if it was an EXE file - if(dwSectorSize > 0x40) - { - dwFileKey = DetectFileKeyByKnownContent(pvEncryptedData, 0x00905A4D, 0x00000003); - if(dwFileKey != 0) - return dwFileKey; - } - - // Try to break the encryption key as if it was a XML file - if(dwSectorSize > 0x04) - { - dwFileKey = DetectFileKeyByKnownContent(pvEncryptedData, 0x6D783F3C, 0x6576206C); - if(dwFileKey != 0) - return dwFileKey; - } - - // Not detected, sorry - return 0; -} - -DWORD DecryptFileKey( - const char * szFileName, - ULONGLONG MpqPos, - DWORD dwFileSize, - DWORD dwFlags) -{ - DWORD dwFileKey; - DWORD dwMpqPos = (DWORD)MpqPos; - - // File key is calculated from plain name - szFileName = GetPlainFileName(szFileName); - dwFileKey = HashString(szFileName, MPQ_HASH_FILE_KEY); - - // Fix the key, if needed - if(dwFlags & MPQ_FILE_FIX_KEY) - dwFileKey = (dwFileKey + dwMpqPos) ^ dwFileSize; - - // Return the key - return dwFileKey; -} - -//----------------------------------------------------------------------------- -// Handle validation functions - -TMPQArchive * IsValidMpqHandle(HANDLE hMpq) -{ - TMPQArchive * ha = (TMPQArchive *)hMpq; - - return (ha != NULL && ha->pHeader != NULL && ha->pHeader->dwID == g_dwMpqSignature) ? ha : NULL; -} - -TMPQFile * IsValidFileHandle(HANDLE hFile) -{ - TMPQFile * hf = (TMPQFile *)hFile; - - // Must not be NULL - if(hf != NULL && hf->dwMagic == ID_MPQ_FILE) - { - // Local file handle? - if(hf->pStream != NULL) - return hf; - - // Also verify the MPQ handle within the file handle - if(IsValidMpqHandle(hf->ha)) - return hf; - } - - return NULL; -} - -//----------------------------------------------------------------------------- -// Hash table and block table manipulation - -// Attempts to search a free hash entry, or an entry whose names and locale matches -TMPQHash * FindFreeHashEntry(TMPQArchive * ha, DWORD dwStartIndex, DWORD dwName1, DWORD dwName2, LCID lcLocale) -{ - TMPQHash * pDeletedEntry = NULL; // If a deleted entry was found in the continuous hash range - TMPQHash * pFreeEntry = NULL; // If a free entry was found in the continuous hash range - DWORD dwHashIndexMask = HASH_INDEX_MASK(ha); - DWORD dwIndex; - - // Set the initial index - dwStartIndex = dwIndex = (dwStartIndex & dwHashIndexMask); - - // Search the hash table and return the found entries in the following priority: - // 1) - // 2) - // 3) - // 4) NULL - for(;;) - { - TMPQHash * pHash = ha->pHashTable + dwIndex; - - // If we found a matching entry, return that one - if(pHash->dwName1 == dwName1 && pHash->dwName2 == dwName2 && pHash->lcLocale == lcLocale) - return pHash; - - // If we found a deleted entry, remember it but keep searching - if(pHash->dwBlockIndex == HASH_ENTRY_DELETED && pDeletedEntry == NULL) - pDeletedEntry = pHash; - - // If we found a free entry, we need to stop searching - if(pHash->dwBlockIndex == HASH_ENTRY_FREE) - { - pFreeEntry = pHash; - break; - } - - // Move to the next hash entry. - // If we reached the starting entry, it's failure. - dwIndex = (dwIndex + 1) & dwHashIndexMask; - if(dwIndex == dwStartIndex) - break; - } - - // If we found a deleted entry, return that one preferentially - return (pDeletedEntry != NULL) ? pDeletedEntry : pFreeEntry; -} - -// Retrieves the first hash entry for the given file. -// Every locale version of a file has its own hash entry -TMPQHash * GetFirstHashEntry(TMPQArchive * ha, const char * szFileName) -{ - DWORD dwHashIndexMask = HASH_INDEX_MASK(ha); - DWORD dwStartIndex = ha->pfnHashString(szFileName, MPQ_HASH_TABLE_INDEX); - DWORD dwStartIndex2 = HashStringSlash2(szFileName, MPQ_HASH_TABLE_INDEX); - DWORD dwName1 = ha->pfnHashString(szFileName, MPQ_HASH_NAME_A); - DWORD dwName2 = ha->pfnHashString(szFileName, MPQ_HASH_NAME_B); - DWORD dwName1B = HashStringSlash2(szFileName, MPQ_HASH_NAME_A); - DWORD dwName2B = HashStringSlash2(szFileName, MPQ_HASH_NAME_B); - DWORD dwIndex; - bool isSecondTry = false; - - // Set the initial index - dwStartIndex = dwIndex = (dwStartIndex & dwHashIndexMask); - - // Search the hash table - for(;;) - { - TMPQHash * pHash = ha->pHashTable + dwIndex; - - // If the entry matches, we found it. - if ((pHash->dwName1 == dwName1 && pHash->dwName2 == dwName2 || (pHash->dwName1 == dwName1B && pHash->dwName2 == dwName2B)) && MPQ_BLOCK_INDEX(pHash) < ha->dwFileTableSize) - return pHash; - - // If that hash entry is a free entry, it means we haven't found the file - if (pHash->dwBlockIndex == HASH_ENTRY_FREE) - { - // We've tried back slashes, now let's try forward slashes - if (!isSecondTry) - { - dwStartIndex = dwIndex = (dwStartIndex2 & dwHashIndexMask); - isSecondTry = true; - continue; - } - else - return NULL; - } - - // Move to the next hash entry. Stop searching - // if we got reached the original hash entry - dwIndex = (dwIndex + 1) & dwHashIndexMask; - if(dwIndex == dwStartIndex) - return NULL; - } -} - -TMPQHash * GetNextHashEntry(TMPQArchive * ha, TMPQHash * pFirstHash, TMPQHash * pHash) -{ - DWORD dwHashIndexMask = HASH_INDEX_MASK(ha); - DWORD dwStartIndex = (DWORD)(pFirstHash - ha->pHashTable); - DWORD dwName1 = pHash->dwName1; - DWORD dwName2 = pHash->dwName2; - DWORD dwIndex = (DWORD)(pHash - ha->pHashTable); - - // Now go for any next entry that follows the pHash, - // until either free hash entry was found, or the start entry was reached - for(;;) - { - // Move to the next hash entry. Stop searching - // if we got reached the original hash entry - dwIndex = (dwIndex + 1) & dwHashIndexMask; - if(dwIndex == dwStartIndex) - return NULL; - pHash = ha->pHashTable + dwIndex; - - // If the entry matches, we found it. - if(pHash->dwName1 == dwName1 && pHash->dwName2 == dwName2 && MPQ_BLOCK_INDEX(pHash) < ha->dwFileTableSize) - return pHash; - - // If that hash entry is a free entry, it means we haven't found the file - if(pHash->dwBlockIndex == HASH_ENTRY_FREE) - return NULL; - } -} - -// Allocates an entry in the hash table -TMPQHash * AllocateHashEntry( - TMPQArchive * ha, - TFileEntry * pFileEntry, - LCID lcLocale) -{ - TMPQHash * pHash; - DWORD dwStartIndex = ha->pfnHashString(pFileEntry->szFileName, MPQ_HASH_TABLE_INDEX); - DWORD dwName1 = ha->pfnHashString(pFileEntry->szFileName, MPQ_HASH_NAME_A); - DWORD dwName2 = ha->pfnHashString(pFileEntry->szFileName, MPQ_HASH_NAME_B); - - // Attempt to find a free hash entry - pHash = FindFreeHashEntry(ha, dwStartIndex, dwName1, dwName2, lcLocale); - if(pHash != NULL) - { - // Fill the free hash entry - pHash->dwName1 = dwName1; - pHash->dwName2 = dwName2; - pHash->lcLocale = (USHORT)lcLocale; - pHash->Platform = 0; - pHash->dwBlockIndex = (DWORD)(pFileEntry - ha->pFileTable); - } - - return pHash; -} - - -// Finds a free space in the MPQ where to store next data -// The free space begins beyond the file that is stored at the fuhrtest -// position in the MPQ. (listfile), (attributes) and (signature) are ignored, -// unless the MPQ is being flushed. -ULONGLONG FindFreeMpqSpace(TMPQArchive * ha) -{ - TMPQHeader * pHeader = ha->pHeader; - TFileEntry * pFileTableEnd = ha->pFileTable + ha->dwFileTableSize; - TFileEntry * pFileEntry; - ULONGLONG FreeSpacePos = ha->pHeader->dwHeaderSize; - DWORD dwChunkCount; - - //static TFileEntry* furthestFile = nullptr; - //TFileEntry* startEntry = furthestFile == nullptr ? ha->pFileTable : furthestFile; - - TFileEntry* startEntry = (ha->useFreeSpaceOptimization && ha->lastFreeSpaceEntry != nullptr) ? ha->lastFreeSpaceEntry : ha->pFileTable; - - // Parse the entire block table - for(pFileEntry = startEntry; pFileEntry < pFileTableEnd; pFileEntry++) - { - // Only take existing files with nonzero size - if((pFileEntry->dwFlags & MPQ_FILE_EXISTS) && (pFileEntry->dwCmpSize != 0)) - { - // If we are not saving MPQ tables, ignore internal MPQ files - if((ha->dwFlags & MPQ_FLAG_SAVING_TABLES) == 0 && IsInternalMpqFileName(pFileEntry->szFileName)) - continue; - - // If the end of the file is bigger than current MPQ table pos, update it - if((pFileEntry->ByteOffset + pFileEntry->dwCmpSize) > FreeSpacePos) - { - // Get the end of the file data - FreeSpacePos = pFileEntry->ByteOffset + pFileEntry->dwCmpSize; - - // Add the MD5 chunks, if present - if(pHeader->dwRawChunkSize != 0 && pFileEntry->dwCmpSize != 0) - { - dwChunkCount = ((pFileEntry->dwCmpSize - 1) / pHeader->dwRawChunkSize) + 1; - FreeSpacePos += dwChunkCount * MD5_DIGEST_SIZE; - } - - ha->lastFreeSpaceEntry = pFileEntry; - - //if (ha->useFreeSpaceOptimization) - //break; - } - } - } - - // Give the free space position to the caller - return FreeSpacePos; -} - -//----------------------------------------------------------------------------- -// Common functions - MPQ File - -TMPQFile * CreateFileHandle(TMPQArchive * ha, TFileEntry * pFileEntry) -{ - TMPQFile * hf; - - // Allocate space for TMPQFile - hf = STORM_ALLOC(TMPQFile, 1); - if(hf != NULL) - { - // Fill the file structure - memset(hf, 0, sizeof(TMPQFile)); - hf->dwMagic = ID_MPQ_FILE; - hf->pStream = NULL; - hf->ha = ha; - - // If the called entered a file entry, we also copy informations from the file entry - if(ha != NULL && pFileEntry != NULL) - { - // Set the raw position and MPQ position - hf->RawFilePos = FileOffsetFromMpqOffset(ha, pFileEntry->ByteOffset); - hf->MpqFilePos = pFileEntry->ByteOffset; - - // Set the data size - hf->dwDataSize = pFileEntry->dwFileSize; - hf->pFileEntry = pFileEntry; - } - } - - return hf; -} - -TMPQFile * CreateWritableHandle(TMPQArchive * ha, DWORD dwFileSize) -{ - ULONGLONG FreeMpqSpace; - ULONGLONG TempPos; - TMPQFile * hf; - - // We need to find the position in the MPQ where we save the file data - FreeMpqSpace = FindFreeMpqSpace(ha); - - // When format V1, the size of the archive cannot exceed 4 GB - if(ha->pHeader->wFormatVersion == MPQ_FORMAT_VERSION_1) - { - TempPos = FreeMpqSpace + - dwFileSize + - (ha->pHeader->dwHashTableSize * sizeof(TMPQHash)) + - (ha->dwFileTableSize * sizeof(TMPQBlock)); - if((TempPos >> 32) != 0) - { - SetLastError(ERROR_DISK_FULL); - return NULL; - } - } - - // Allocate the file handle - hf = CreateFileHandle(ha, NULL); - if(hf == NULL) - { - SetLastError(ERROR_NOT_ENOUGH_MEMORY); - return NULL; - } - - // We need to find the position in the MPQ where we save the file data - hf->MpqFilePos = FreeMpqSpace; - hf->bIsWriteHandle = true; - return hf; -} - -// Loads a table from MPQ. -// Can be used for hash table, block table, sector offset table or sector checksum table -void * LoadMpqTable( - TMPQArchive * ha, - ULONGLONG ByteOffset, - LPBYTE pbTableHash, - DWORD dwCompressedSize, - DWORD dwTableSize, - DWORD dwKey, - bool * pbTableIsCut) -{ - ULONGLONG FileSize = 0; - LPBYTE pbCompressed = NULL; - LPBYTE pbMpqTable; - LPBYTE pbToRead; - DWORD dwBytesToRead = dwCompressedSize; - DWORD dwErrCode = ERROR_SUCCESS; - - // Allocate the MPQ table - pbMpqTable = pbToRead = STORM_ALLOC(BYTE, dwTableSize); - if(pbMpqTable != NULL) - { - // Check if the MPQ table is encrypted - if(dwCompressedSize < dwTableSize) - { - // Allocate temporary buffer for holding compressed data - pbCompressed = pbToRead = STORM_ALLOC(BYTE, dwCompressedSize); - if(pbCompressed == NULL) - { - STORM_FREE(pbMpqTable); - return NULL; - } - } - - // Get the file offset from which we will read the table - // Note: According to Storm.dll from Warcraft III (version 2002), - // if the hash table position is 0xFFFFFFFF, no SetFilePointer call is done - // and the table is loaded from the current file offset - if(ByteOffset == SFILE_INVALID_POS) - FileStream_GetPos(ha->pStream, &ByteOffset); - - // On archives v 1.0, hash table and block table can go beyond EOF. - // Storm.dll reads as much as possible, then fills the missing part with zeros. - // Abused by Spazzler map protector which sets hash table size to 0x00100000 - // Abused by NP_Protect in MPQs v4 as well - if(ha->pHeader->wFormatVersion == MPQ_FORMAT_VERSION_1) - { - // Cut the table size - FileStream_GetSize(ha->pStream, &FileSize); - if((ByteOffset + dwBytesToRead) > FileSize) - { - // Fill the extra data with zeros - dwBytesToRead = (DWORD)(FileSize - ByteOffset); - memset(pbMpqTable + dwBytesToRead, 0, (dwTableSize - dwBytesToRead)); - - // Give the caller information that the table was cut - if(pbTableIsCut != NULL) - pbTableIsCut[0] = true; - } - } - - // If everything succeeded, read the raw table from the MPQ - if(FileStream_Read(ha->pStream, &ByteOffset, pbToRead, dwBytesToRead)) - { - // Verify the MD5 of the table, if present - if(!VerifyDataBlockHash(pbToRead, dwBytesToRead, pbTableHash)) - { - dwErrCode = ERROR_FILE_CORRUPT; - } - } - else - { - dwErrCode = GetLastError(); - } - - if(dwErrCode == ERROR_SUCCESS) - { - // First of all, decrypt the table - if(dwKey != 0) - { - BSWAP_ARRAY32_UNSIGNED(pbToRead, dwCompressedSize); - DecryptMpqBlock(pbToRead, dwCompressedSize, dwKey); - BSWAP_ARRAY32_UNSIGNED(pbToRead, dwCompressedSize); - } - - // If the table is compressed, decompress it - if(dwCompressedSize < dwTableSize) - { - int cbOutBuffer = (int)dwTableSize; - int cbInBuffer = (int)dwCompressedSize; - - if(!SCompDecompress2(pbMpqTable, &cbOutBuffer, pbCompressed, cbInBuffer)) - dwErrCode = GetLastError(); - } - - // Make sure that the table is properly byte-swapped - BSWAP_ARRAY32_UNSIGNED(pbMpqTable, dwTableSize); - } - - // If read failed, free the table and return - if(dwErrCode != ERROR_SUCCESS) - { - STORM_FREE(pbMpqTable); - pbMpqTable = NULL; - } - - // Free the compression buffer, if any - if(pbCompressed != NULL) - STORM_FREE(pbCompressed); - } - - // Return the MPQ table - return pbMpqTable; -} - -unsigned char * AllocateMd5Buffer( - DWORD dwRawDataSize, - DWORD dwChunkSize, - LPDWORD pcbMd5Size) -{ - unsigned char * md5_array; - DWORD cbMd5Size; - - // Sanity check - assert(dwRawDataSize != 0); - assert(dwChunkSize != 0); - - // Calculate how many MD5's we will calculate - cbMd5Size = (((dwRawDataSize - 1) / dwChunkSize) + 1) * MD5_DIGEST_SIZE; - - // Allocate space for array or MD5s - md5_array = STORM_ALLOC(BYTE, cbMd5Size); - - // Give the size of the MD5 array - if(pcbMd5Size != NULL) - *pcbMd5Size = cbMd5Size; - return md5_array; -} - -// Allocates sector buffer and sector offset table -DWORD AllocateSectorBuffer(TMPQFile * hf) -{ - TMPQArchive * ha = hf->ha; - - // Caller of AllocateSectorBuffer must ensure these - assert(hf->pbFileSector == NULL); - assert(hf->pFileEntry != NULL); - assert(hf->ha != NULL); - - // Don't allocate anything if the file has zero size - if(hf->pFileEntry->dwFileSize == 0 || hf->dwDataSize == 0) - return ERROR_SUCCESS; - - // Determine the file sector size and allocate buffer for it - hf->dwSectorSize = (hf->pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT) ? hf->dwDataSize : ha->dwSectorSize; - hf->pbFileSector = STORM_ALLOC(BYTE, hf->dwSectorSize); - hf->dwSectorOffs = SFILE_INVALID_POS; - - // Return result - return (hf->pbFileSector != NULL) ? ERROR_SUCCESS : ERROR_NOT_ENOUGH_MEMORY; -} - -// Allocates sector offset table -DWORD AllocatePatchInfo(TMPQFile * hf, bool bLoadFromFile) -{ - TMPQArchive * ha = hf->ha; - DWORD dwLength = sizeof(TPatchInfo); - - // The following conditions must be true - assert(hf->pFileEntry->dwFlags & MPQ_FILE_PATCH_FILE); - assert(hf->pPatchInfo == NULL); - -__AllocateAndLoadPatchInfo: - - // Allocate space for patch header. Start with default size, - // and if its size if bigger, then we reload them - hf->pPatchInfo = STORM_ALLOC(TPatchInfo, 1); - if(hf->pPatchInfo == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Do we have to load the patch header from the file ? - if(bLoadFromFile) - { - // Load the patch header - if(!FileStream_Read(ha->pStream, &hf->RawFilePos, hf->pPatchInfo, dwLength)) - { - // Free the patch info - STORM_FREE(hf->pPatchInfo); - hf->pPatchInfo = NULL; - return GetLastError(); - } - - // Perform necessary swapping - hf->pPatchInfo->dwLength = BSWAP_INT32_UNSIGNED(hf->pPatchInfo->dwLength); - hf->pPatchInfo->dwFlags = BSWAP_INT32_UNSIGNED(hf->pPatchInfo->dwFlags); - hf->pPatchInfo->dwDataSize = BSWAP_INT32_UNSIGNED(hf->pPatchInfo->dwDataSize); - - // Verify the size of the patch header - // If it's not default size, we have to reload them - if(hf->pPatchInfo->dwLength > dwLength) - { - // Free the patch info - dwLength = hf->pPatchInfo->dwLength; - STORM_FREE(hf->pPatchInfo); - hf->pPatchInfo = NULL; - - // If the length is out of all possible ranges, fail the operation - if(dwLength > 0x400) - return ERROR_FILE_CORRUPT; - goto __AllocateAndLoadPatchInfo; - } - - // Patch file data size according to the patch header - hf->dwDataSize = hf->pPatchInfo->dwDataSize; - } - else - { - memset(hf->pPatchInfo, 0, dwLength); - } - - // Save the final length to the patch header - hf->pPatchInfo->dwLength = dwLength; - hf->pPatchInfo->dwFlags = 0x80000000; - return ERROR_SUCCESS; -} - -// Allocates sector offset table -DWORD AllocateSectorOffsets(TMPQFile * hf, bool bLoadFromFile) -{ - TMPQArchive * ha = hf->ha; - TFileEntry * pFileEntry = hf->pFileEntry; - DWORD dwSectorOffsLen; - bool bSectorOffsetTableCorrupt = false; - - // Caller of AllocateSectorOffsets must ensure these - assert(hf->SectorOffsets == NULL); - assert(hf->pFileEntry != NULL); - assert(hf->dwDataSize != 0); - assert(hf->ha != NULL); - - // If the file is stored as single unit, just set number of sectors to 1 - if(pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT) - { - hf->dwSectorCount = 1; - return ERROR_SUCCESS; - } - - // Calculate the number of data sectors - // Note that this doesn't work if the file size is zero - hf->dwSectorCount = ((hf->dwDataSize - 1) / hf->dwSectorSize) + 1; - - // Calculate the number of file sectors - dwSectorOffsLen = (hf->dwSectorCount + 1) * sizeof(DWORD); - - // If MPQ_FILE_SECTOR_CRC flag is set, there will either be extra DWORD - // or an array of MD5's. Either way, we read at least 4 bytes more - // in order to save additional read from the file. - if(pFileEntry->dwFlags & MPQ_FILE_SECTOR_CRC) - dwSectorOffsLen += sizeof(DWORD); - - // Only allocate and load the table if the file is compressed - if(pFileEntry->dwFlags & MPQ_FILE_COMPRESS_MASK) - { - __LoadSectorOffsets: - - // Allocate the sector offset table - hf->SectorOffsets = STORM_ALLOC(DWORD, (dwSectorOffsLen / sizeof(DWORD))); - if(hf->SectorOffsets == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Only read from the file if we are supposed to do so - if(bLoadFromFile) - { - ULONGLONG RawFilePos = hf->RawFilePos; - - // Append the length of the patch info, if any - if(hf->pPatchInfo != NULL) - { - if((RawFilePos + hf->pPatchInfo->dwLength) < RawFilePos) - return ERROR_FILE_CORRUPT; - RawFilePos += hf->pPatchInfo->dwLength; - } - - // Load the sector offsets from the file - if(!FileStream_Read(ha->pStream, &RawFilePos, hf->SectorOffsets, dwSectorOffsLen)) - { - // Free the sector offsets - STORM_FREE(hf->SectorOffsets); - hf->SectorOffsets = NULL; - return GetLastError(); - } - - // Swap the sector positions - BSWAP_ARRAY32_UNSIGNED(hf->SectorOffsets, dwSectorOffsLen); - - // Decrypt loaded sector positions if necessary - if(pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED) - { - // If we don't know the file key, try to find it. - if(hf->dwFileKey == 0) - { - hf->dwFileKey = DetectFileKeyBySectorSize(hf->SectorOffsets, ha->dwSectorSize, dwSectorOffsLen); - if(hf->dwFileKey == 0) - { - STORM_FREE(hf->SectorOffsets); - hf->SectorOffsets = NULL; - return ERROR_UNKNOWN_FILE_KEY; - } - } - - // Decrypt sector positions - DecryptMpqBlock(hf->SectorOffsets, dwSectorOffsLen, hf->dwFileKey - 1); - } - - // - // Validate the sector offset table - // - // Note: Some MPQ protectors put the actual file data before the sector offset table. - // In this case, the sector offsets are negative (> 0x80000000). - // - - for(DWORD i = 0; i < hf->dwSectorCount; i++) - { - DWORD dwSectorOffset1 = hf->SectorOffsets[i+1]; - DWORD dwSectorOffset0 = hf->SectorOffsets[i]; - - // Every following sector offset must be bigger than the previous one - if(dwSectorOffset1 <= dwSectorOffset0) - { - bSectorOffsetTableCorrupt = true; - break; - } - - // The sector size must not be bigger than compressed file size - // Edit: Yes, but apparently, in original Storm.dll, the compressed - // size is not checked anywhere. However, we need to do this check - // in order to sector offset table malformed by MPQ protectors - if((dwSectorOffset1 - dwSectorOffset0) > ha->dwSectorSize) - { - bSectorOffsetTableCorrupt = true; - break; - } - } - - // If data corruption detected, free the sector offset table - if(bSectorOffsetTableCorrupt) - { - STORM_FREE(hf->SectorOffsets); - hf->SectorOffsets = NULL; - return ERROR_FILE_CORRUPT; - } - - // - // There may be various extra DWORDs loaded after the sector offset table. - // They are mostly empty on WoW release MPQs, but on MPQs from PTR, - // they contain random non-zero data. Their meaning is unknown. - // - // These extra values are, however, include in the dwCmpSize in the file - // table. We cannot ignore them, because compacting archive would fail - // - - if(hf->SectorOffsets[0] > dwSectorOffsLen) - { - // MPQ protectors put some ridiculous values there. We must limit the extra bytes - if(hf->SectorOffsets[0] > (dwSectorOffsLen + 0x400)) - return ERROR_FILE_CORRUPT; - - // Free the old sector offset table - dwSectorOffsLen = hf->SectorOffsets[0]; - STORM_FREE(hf->SectorOffsets); - goto __LoadSectorOffsets; - } - } - else - { - memset(hf->SectorOffsets, 0, dwSectorOffsLen); - hf->SectorOffsets[0] = dwSectorOffsLen; - } - } - - return ERROR_SUCCESS; -} - -DWORD AllocateSectorChecksums(TMPQFile * hf, bool bLoadFromFile) -{ - TMPQArchive * ha = hf->ha; - TFileEntry * pFileEntry = hf->pFileEntry; - ULONGLONG RawFilePos; - DWORD dwCompressedSize = 0; - DWORD dwExpectedSize; - DWORD dwCrcOffset; // Offset of the CRC table, relative to file offset in the MPQ - DWORD dwCrcSize; - - // Caller of AllocateSectorChecksums must ensure these - assert(hf->SectorChksums == NULL); - assert(hf->SectorOffsets != NULL); - assert(hf->pFileEntry != NULL); - assert(hf->ha != NULL); - - // Single unit files don't have sector checksums - if(pFileEntry->dwFlags & MPQ_FILE_SINGLE_UNIT) - return ERROR_SUCCESS; - - // Caller must ensure that we are only called when we have sector checksums - assert(pFileEntry->dwFlags & MPQ_FILE_SECTOR_CRC); - - // - // Older MPQs store an array of CRC32's after - // the raw file data in the MPQ. - // - // In newer MPQs, the (since Cataclysm BETA) the (attributes) file - // contains additional 32-bit values beyond the sector table. - // Their number depends on size of the (attributes), but their - // meaning is unknown. They are usually zeroed in retail game files, - // but contain some sort of checksum in BETA MPQs - // - - // Does the size of the file table match with the CRC32-based checksums? - dwExpectedSize = (hf->dwSectorCount + 2) * sizeof(DWORD); - if(hf->SectorOffsets[0] != 0 && hf->SectorOffsets[0] == dwExpectedSize) - { - // If we are not loading from the MPQ file, we just allocate the sector table - // In that case, do not check any sizes - if(bLoadFromFile == false) - { - hf->SectorChksums = STORM_ALLOC(DWORD, hf->dwSectorCount); - if(hf->SectorChksums == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Fill the checksum table with zeros - memset(hf->SectorChksums, 0, hf->dwSectorCount * sizeof(DWORD)); - return ERROR_SUCCESS; - } - else - { - // Is there valid size of the sector checksums? - if(hf->SectorOffsets[hf->dwSectorCount + 1] >= hf->SectorOffsets[hf->dwSectorCount]) - dwCompressedSize = hf->SectorOffsets[hf->dwSectorCount + 1] - hf->SectorOffsets[hf->dwSectorCount]; - - // Ignore cases when the length is too small or too big. - if(dwCompressedSize < sizeof(DWORD) || dwCompressedSize > hf->dwSectorSize) - return ERROR_SUCCESS; - - // Calculate offset of the CRC table - dwCrcSize = hf->dwSectorCount * sizeof(DWORD); - dwCrcOffset = hf->SectorOffsets[hf->dwSectorCount]; - RawFilePos = CalculateRawSectorOffset(hf, dwCrcOffset); - - // Now read the table from the MPQ - hf->SectorChksums = (DWORD *)LoadMpqTable(ha, RawFilePos, NULL, dwCompressedSize, dwCrcSize, 0, NULL); - if(hf->SectorChksums == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - } - } - - // If the size doesn't match, we ignore sector checksums -// assert(false); - return ERROR_SUCCESS; -} - -DWORD WritePatchInfo(TMPQFile * hf) -{ - TMPQArchive * ha = hf->ha; - TPatchInfo * pPatchInfo = hf->pPatchInfo; - - // The caller must make sure that this function is only called - // when the following is true. - assert(hf->pFileEntry->dwFlags & MPQ_FILE_PATCH_FILE); - assert(pPatchInfo != NULL); - - BSWAP_ARRAY32_UNSIGNED(pPatchInfo, 3 * sizeof(DWORD)); - if(!FileStream_Write(ha->pStream, &hf->RawFilePos, pPatchInfo, sizeof(TPatchInfo))) - return GetLastError(); - - return ERROR_SUCCESS; -} - -DWORD WriteSectorOffsets(TMPQFile * hf) -{ - TMPQArchive * ha = hf->ha; - TFileEntry * pFileEntry = hf->pFileEntry; - ULONGLONG RawFilePos = hf->RawFilePos; - DWORD dwSectorOffsLen; - - // The caller must make sure that this function is only called - // when the following is true. - assert(hf->pFileEntry->dwFlags & MPQ_FILE_COMPRESS_MASK); - assert(hf->SectorOffsets != NULL); - dwSectorOffsLen = hf->SectorOffsets[0]; - - // If file is encrypted, sector positions are also encrypted - if(pFileEntry->dwFlags & MPQ_FILE_ENCRYPTED) - EncryptMpqBlock(hf->SectorOffsets, dwSectorOffsLen, hf->dwFileKey - 1); - BSWAP_ARRAY32_UNSIGNED(hf->SectorOffsets, dwSectorOffsLen); - - // Adjust sector offset table position, if we also have patch info - if(hf->pPatchInfo != NULL) - RawFilePos += hf->pPatchInfo->dwLength; - - // Write sector offsets to the archive - if(!FileStream_Write(ha->pStream, &RawFilePos, hf->SectorOffsets, dwSectorOffsLen)) - return GetLastError(); - - // Not necessary, as the sector checksums - // are going to be freed when this is done. -// BSWAP_ARRAY32_UNSIGNED(hf->SectorOffsets, dwSectorOffsLen); - return ERROR_SUCCESS; -} - -DWORD WriteSectorChecksums(TMPQFile * hf) -{ - TMPQArchive * ha = hf->ha; - ULONGLONG RawFilePos; - TFileEntry * pFileEntry = hf->pFileEntry; - LPBYTE pbCompressed; - DWORD dwCompressedSize = 0; - DWORD dwErrCode = ERROR_SUCCESS; - DWORD dwCrcSize; - int nOutSize; - - // The caller must make sure that this function is only called - // when the following is true. - assert(hf->pFileEntry->dwFlags & MPQ_FILE_SECTOR_CRC); - assert(hf->SectorOffsets != NULL); - assert(hf->SectorChksums != NULL); - - // If the MPQ has MD5 of each raw data chunk, - // we leave sector offsets empty - if(ha->pHeader->dwRawChunkSize != 0) - { - hf->SectorOffsets[hf->dwSectorCount + 1] = hf->SectorOffsets[hf->dwSectorCount]; - return ERROR_SUCCESS; - } - - // Calculate size of the checksum array - dwCrcSize = hf->dwSectorCount * sizeof(DWORD); - - // Allocate buffer for compressed sector CRCs. - pbCompressed = STORM_ALLOC(BYTE, dwCrcSize); - if(pbCompressed == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Perform the compression - BSWAP_ARRAY32_UNSIGNED(hf->SectorChksums, dwCrcSize); - - nOutSize = (int)dwCrcSize; - SCompCompress(pbCompressed, &nOutSize, hf->SectorChksums, (int)dwCrcSize, MPQ_COMPRESSION_ZLIB, 0, 0); - dwCompressedSize = (DWORD)nOutSize; - - // Write the sector CRCs to the archive - RawFilePos = hf->RawFilePos + hf->SectorOffsets[hf->dwSectorCount]; - if(hf->pPatchInfo != NULL) - RawFilePos += hf->pPatchInfo->dwLength; - if(!FileStream_Write(ha->pStream, &RawFilePos, pbCompressed, dwCompressedSize)) - dwErrCode = GetLastError(); - - // Not necessary, as the sector checksums - // are going to be freed when this is done. -// BSWAP_ARRAY32_UNSIGNED(hf->SectorChksums, dwCrcSize); - - // Store the sector CRCs - hf->SectorOffsets[hf->dwSectorCount + 1] = hf->SectorOffsets[hf->dwSectorCount] + dwCompressedSize; - pFileEntry->dwCmpSize += dwCompressedSize; - STORM_FREE(pbCompressed); - return dwErrCode; -} - -DWORD WriteMemDataMD5( - TFileStream * pStream, - ULONGLONG RawDataOffs, - void * pvRawData, - DWORD dwRawDataSize, - DWORD dwChunkSize, - LPDWORD pcbTotalSize) -{ - unsigned char * md5_array; - unsigned char * md5; - LPBYTE pbRawData = (LPBYTE)pvRawData; - DWORD dwBytesRemaining = dwRawDataSize; - DWORD dwMd5ArraySize = 0; - DWORD dwErrCode = ERROR_SUCCESS; - - // Allocate buffer for array of MD5 - md5_array = md5 = AllocateMd5Buffer(dwRawDataSize, dwChunkSize, &dwMd5ArraySize); - if(md5_array == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // For every file chunk, calculate MD5 - while(dwBytesRemaining != 0) - { - // Get the remaining number of bytes to read - dwChunkSize = STORMLIB_MIN(dwBytesRemaining, dwChunkSize); - - // Calculate MD5 - CalculateDataBlockHash(pbRawData, dwChunkSize, md5); - md5 += MD5_DIGEST_SIZE; - - // Move offset and size - dwBytesRemaining -= dwChunkSize; - pbRawData += dwChunkSize; - } - - // Write the array od MD5's to the file - RawDataOffs += dwRawDataSize; - if(!FileStream_Write(pStream, &RawDataOffs, md5_array, dwMd5ArraySize)) - dwErrCode = GetLastError(); - - // Give the caller the size of the MD5 array - if(pcbTotalSize != NULL) - *pcbTotalSize = dwRawDataSize + dwMd5ArraySize; - - // Free buffers and exit - STORM_FREE(md5_array); - return dwErrCode; -} - - -// Writes the MD5 for each chunk of the raw file data -DWORD WriteMpqDataMD5( - TFileStream * pStream, - ULONGLONG RawDataOffs, - DWORD dwRawDataSize, - DWORD dwChunkSize) -{ - unsigned char * md5_array; - unsigned char * md5; - LPBYTE pbFileChunk; - DWORD dwMd5ArraySize = 0; - DWORD dwToRead = dwRawDataSize; - DWORD dwErrCode = ERROR_SUCCESS; - - // Allocate buffer for array of MD5 - md5_array = md5 = AllocateMd5Buffer(dwRawDataSize, dwChunkSize, &dwMd5ArraySize); - if(md5_array == NULL) - return ERROR_NOT_ENOUGH_MEMORY; - - // Allocate space for file chunk - pbFileChunk = STORM_ALLOC(BYTE, dwChunkSize); - if(pbFileChunk == NULL) - { - STORM_FREE(md5_array); - return ERROR_NOT_ENOUGH_MEMORY; - } - - // For every file chunk, calculate MD5 - while(dwRawDataSize != 0) - { - // Get the remaining number of bytes to read - dwToRead = STORMLIB_MIN(dwRawDataSize, dwChunkSize); - - // Read the chunk - if(!FileStream_Read(pStream, &RawDataOffs, pbFileChunk, dwToRead)) - { - dwErrCode = GetLastError(); - break; - } - - // Calculate MD5 - CalculateDataBlockHash(pbFileChunk, dwToRead, md5); - md5 += MD5_DIGEST_SIZE; - - // Move offset and size - RawDataOffs += dwToRead; - dwRawDataSize -= dwToRead; - } - - // Write the array od MD5's to the file - if(dwErrCode == ERROR_SUCCESS) - { - if(!FileStream_Write(pStream, NULL, md5_array, dwMd5ArraySize)) - dwErrCode = GetLastError(); - } - - // Free buffers and exit - STORM_FREE(pbFileChunk); - STORM_FREE(md5_array); - return dwErrCode; -} - -// Frees the structure for MPQ file -void FreeFileHandle(TMPQFile *& hf) -{ - if(hf != NULL) - { - // If we have patch file attached to this one, free it first - if(hf->hfPatch != NULL) - FreeFileHandle(hf->hfPatch); - - // Then free all buffers allocated in the file structure - if(hf->pbFileData != NULL) - STORM_FREE(hf->pbFileData); - if(hf->pPatchInfo != NULL) - STORM_FREE(hf->pPatchInfo); - if(hf->SectorOffsets != NULL) - STORM_FREE(hf->SectorOffsets); - if(hf->SectorChksums != NULL) - STORM_FREE(hf->SectorChksums); - if(hf->pbFileSector != NULL) - STORM_FREE(hf->pbFileSector); - if(hf->pStream != NULL) - FileStream_Close(hf->pStream); - STORM_FREE(hf); - hf = NULL; - } -} - -// Frees the MPQ archive -void FreeArchiveHandle(TMPQArchive *& ha) -{ - if(ha != NULL) - { - // First of all, free the patch archive, if any - if(ha->haPatch != NULL) - FreeArchiveHandle(ha->haPatch); - - // Free the patch prefix, if any - if(ha->pPatchPrefix != NULL) - STORM_FREE(ha->pPatchPrefix); - - // Close the file stream - FileStream_Close(ha->pStream); - ha->pStream = NULL; - - // Free the file names from the file table - if(ha->pFileTable != NULL) - { - for(DWORD i = 0; i < ha->dwFileTableSize; i++) - { - if(ha->pFileTable[i].szFileName != NULL) - STORM_FREE(ha->pFileTable[i].szFileName); - ha->pFileTable[i].szFileName = NULL; - } - - // Then free all buffers allocated in the archive structure - STORM_FREE(ha->pFileTable); - } - - if(ha->pHashTable != NULL) - STORM_FREE(ha->pHashTable); - if(ha->pHetTable != NULL) - FreeHetTable(ha->pHetTable); - STORM_FREE(ha); - ha = NULL; - } -} - -bool IsInternalMpqFileName(const char * szFileName) -{ - if(szFileName != NULL && szFileName[0] == '(') - { - if(!_stricmp(szFileName, LISTFILE_NAME) || - !_stricmp(szFileName, ATTRIBUTES_NAME) || - !_stricmp(szFileName, SIGNATURE_NAME)) - { - return true; - } - } - - return false; -} - -// Verifies if the file name is a pseudo-name -bool IsPseudoFileName(const char * szFileName, DWORD * pdwFileIndex) -{ - DWORD dwFileIndex = 0; - - if(szFileName != NULL) - { - // Must be "File########.ext" - if(!_strnicmp(szFileName, "File", 4)) - { - // Check 8 digits - for(int i = 4; i < 4+8; i++) - { - if(szFileName[i] < '0' || szFileName[i] > '9') - return false; - dwFileIndex = (dwFileIndex * 10) + (szFileName[i] - '0'); - } - - // An extension must follow - if(szFileName[12] == '.') - { - if(pdwFileIndex != NULL) - *pdwFileIndex = dwFileIndex; - return true; - } - } - } - - // Not a pseudo-name - return false; -} - -//----------------------------------------------------------------------------- -// Functions calculating and verifying the MD5 signature - -bool IsValidMD5(LPBYTE pbMd5) -{ - LPDWORD Md5 = (LPDWORD)pbMd5; - - return ((Md5 != NULL) && (Md5[0] | Md5[1] | Md5[2] | Md5[3])) ? true : false; -} - -bool IsValidSignature(LPBYTE pbSignature) -{ - LPDWORD Signature = (LPDWORD)pbSignature; - DWORD SigValid = 0; - - for(int i = 0; i < MPQ_WEAK_SIGNATURE_SIZE / sizeof(DWORD); i++) - SigValid |= Signature[i]; - - return (SigValid != 0) ? true : false; -} - - -bool VerifyDataBlockHash(void * pvDataBlock, DWORD cbDataBlock, LPBYTE expected_md5) -{ - hash_state md5_state; - BYTE md5_digest[MD5_DIGEST_SIZE]; - bool bResult = true; - - // Don't verify the block if the MD5 is not valid. - if(IsValidMD5(expected_md5)) - { - // Calculate the MD5 of the data block - md5_init(&md5_state); - md5_process(&md5_state, (unsigned char *)pvDataBlock, cbDataBlock); - md5_done(&md5_state, md5_digest); - - // Does the MD5's match? - bResult = (memcmp(md5_digest, expected_md5, MD5_DIGEST_SIZE) == 0); - } - - return bResult; -} - -void CalculateDataBlockHash(void * pvDataBlock, DWORD cbDataBlock, LPBYTE md5_hash) -{ - hash_state md5_state; - - md5_init(&md5_state); - md5_process(&md5_state, (unsigned char *)pvDataBlock, cbDataBlock); - md5_done(&md5_state, md5_hash); -} - - -//----------------------------------------------------------------------------- -// Swapping functions - -#ifndef STORMLIB_LITTLE_ENDIAN - -// Swaps a signed 16-bit integer -int16_t SwapInt16(uint16_t val) -{ - return (val << 8) | ((val >> 8) & 0xFF); -} - -// Swaps an unsigned 16-bit integer -uint16_t SwapUInt16(uint16_t val) -{ - return (val << 8) | (val >> 8 ); -} - -// Swaps a signed 32-bit integer -int32_t SwapInt32(uint32_t val) -{ - val = ((val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF ); - return (val << 16) | ((val >> 16) & 0xFFFF); -} - -// Swaps an unsigned 32-bit integer -uint32_t SwapUInt32(uint32_t val) -{ - val = ((val << 8) & 0xFF00FF00 ) | ((val >> 8) & 0xFF00FF ); - return (val << 16) | (val >> 16); -} - -// Swaps a signed 64-bit integer -int64_t SwapInt64(uint64_t val) -{ - val = ((val << 8) & 0xFF00FF00FF00FF00ULL ) | ((val >> 8) & 0x00FF00FF00FF00FFULL ); - val = ((val << 16) & 0xFFFF0000FFFF0000ULL ) | ((val >> 16) & 0x0000FFFF0000FFFFULL ); - return (val << 32) | ((val >> 32) & 0xFFFFFFFFULL); -} - -// Swaps an unsigned 64-bit integer -uint64_t SwapUInt64(uint64_t val) -{ - val = ((val << 8) & 0xFF00FF00FF00FF00ULL ) | ((val >> 8) & 0x00FF00FF00FF00FFULL ); - val = ((val << 16) & 0xFFFF0000FFFF0000ULL ) | ((val >> 16) & 0x0000FFFF0000FFFFULL ); - return (val << 32) | (val >> 32); -} - -// Swaps array of unsigned 16-bit integers -void ConvertUInt16Buffer(void * ptr, size_t length) -{ - uint16_t * buffer = (uint16_t *)ptr; - uint32_t nElements = (uint32_t)(length / sizeof(uint16_t)); - - while(nElements-- > 0) - { - *buffer = SwapUInt16(*buffer); - buffer++; - } -} - -// Swaps array of unsigned 32-bit integers -void ConvertUInt32Buffer(void * ptr, size_t length) -{ - uint32_t * buffer = (uint32_t *)ptr; - uint32_t nElements = (uint32_t)(length / sizeof(uint32_t)); - - while(nElements-- > 0) - { - *buffer = SwapUInt32(*buffer); - buffer++; - } -} - -// Swaps array of unsigned 64-bit integers -void ConvertUInt64Buffer(void * ptr, size_t length) -{ - uint64_t * buffer = (uint64_t *)ptr; - uint32_t nElements = (uint32_t)(length / sizeof(uint64_t)); - - while(nElements-- > 0) - { - *buffer = SwapUInt64(*buffer); - buffer++; - } -} - -// Swaps the TMPQHeader structure -void ConvertTMPQHeader(void *header, uint16_t version) -{ - TMPQHeader * theHeader = (TMPQHeader *)header; - - // Swap header part version 1 - if(version >= MPQ_FORMAT_VERSION_1) - { - theHeader->dwID = SwapUInt32(theHeader->dwID); - theHeader->dwHeaderSize = SwapUInt32(theHeader->dwHeaderSize); - theHeader->dwArchiveSize = SwapUInt32(theHeader->dwArchiveSize); - theHeader->wFormatVersion = SwapUInt16(theHeader->wFormatVersion); - theHeader->wSectorSize = SwapUInt16(theHeader->wSectorSize); - theHeader->dwHashTablePos = SwapUInt32(theHeader->dwHashTablePos); - theHeader->dwBlockTablePos = SwapUInt32(theHeader->dwBlockTablePos); - theHeader->dwHashTableSize = SwapUInt32(theHeader->dwHashTableSize); - theHeader->dwBlockTableSize = SwapUInt32(theHeader->dwBlockTableSize); - } - - if(version >= MPQ_FORMAT_VERSION_2) - { - theHeader->HiBlockTablePos64 = SwapUInt64(theHeader->HiBlockTablePos64); - theHeader->wHashTablePosHi = SwapUInt16(theHeader->wHashTablePosHi); - theHeader->wBlockTablePosHi = SwapUInt16(theHeader->wBlockTablePosHi); - } - - if(version >= MPQ_FORMAT_VERSION_3) - { - theHeader->ArchiveSize64 = SwapUInt64(theHeader->ArchiveSize64); - theHeader->BetTablePos64 = SwapUInt64(theHeader->BetTablePos64); - theHeader->HetTablePos64 = SwapUInt64(theHeader->HetTablePos64); - } - - if(version >= MPQ_FORMAT_VERSION_4) - { - theHeader->HashTableSize64 = SwapUInt64(theHeader->HashTableSize64); - theHeader->BlockTableSize64 = SwapUInt64(theHeader->BlockTableSize64); - theHeader->HiBlockTableSize64 = SwapUInt64(theHeader->HiBlockTableSize64); - theHeader->HetTableSize64 = SwapUInt64(theHeader->HetTableSize64); - theHeader->BetTableSize64 = SwapUInt64(theHeader->BetTableSize64); - } -} - -#endif // STORMLIB_LITTLE_ENDIAN -- cgit v1.2.3