86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
#include "match.h"
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#include "engine.h"
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#include "main.h"
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#include "defs.h"
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#include "native/pchooks.h"
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extern const char* HIJACK_ERROR;
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uintptr_t processStartAddress, processStopAddress;
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namespace Engine
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{
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WCHAR* processName, // cached
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processPath[MAX_PATH]; // cached
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char configFileData[1000]{};
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bool UnsafeDetermineEngineType();
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// jichi 10/21/2014: Return whether found the game engine
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bool DetermineEngineType()
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{
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// jichi 9/27/2013: disable game engine for debugging use
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bool found = false;
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#ifndef ITH_DISABLE_ENGINE
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__try { found = UnsafeDetermineEngineType(); }
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__except (EXCEPTION_EXECUTE_HANDLER) { ConsoleOutput(HIJACK_ERROR); }
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#endif // ITH_DISABLE_ENGINE
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if (!found) { // jichi 10/2/2013: Only enable it if no game engine is detected
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PcHooks::hookOtherPcFunctions();
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} //else
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// ConsoleOutput("vnreng: found game engine, IGNORE non gui hooks");
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return found;
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}
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void Hijack()
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{
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static auto _ = ([]
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{
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GetModuleFileNameW(nullptr, processPath, MAX_PATH);
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processName = wcsrchr(processPath, L'\\') + 1;
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wchar_t configFilename[MAX_PATH + std::size(GAME_CONFIG_FILE)];
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wcsncpy_s(configFilename, processPath, MAX_PATH - 1);
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wcscpy_s(wcsrchr(configFilename, L'\\') + 1, std::size(GAME_CONFIG_FILE), GAME_CONFIG_FILE);
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if (AutoHandle<> configFile = CreateFileW(configFilename, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL))
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{
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ReadFile(configFile, configFileData, sizeof(configFileData) - 1, DUMMY, nullptr);
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if (strncmp(configFileData, "Engine:", 7) == 0)
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{
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if (loadedConfig = strchr(configFileData, '\n')) *(char*)loadedConfig++ = 0;
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ConsoleOutput("Textractor: Engine = %s", requestedEngine = configFileData + 7);
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}
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else loadedConfig = configFileData;
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if ((loadedConfig && !*loadedConfig) || strstr(configFileData, "https://")) loadedConfig = nullptr;
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else ConsoleOutput("Textractor: game configuration loaded");
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}
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processStartAddress = processStopAddress = (uintptr_t)GetModuleHandleW(nullptr);
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MEMORY_BASIC_INFORMATION info;
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do
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{
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VirtualQuery((void*)processStopAddress, &info, sizeof(info));
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processStopAddress = (uintptr_t)info.BaseAddress + info.RegionSize;
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} while (info.Protect > PAGE_NOACCESS);
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processStopAddress -= info.RegionSize;
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spDefault.minAddress = processStartAddress;
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spDefault.maxAddress = processStopAddress;
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ConsoleOutput("Textractor: hijacking process located from 0x%p to 0x%p", processStartAddress, processStopAddress);
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DetermineEngineType();
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if (processStartAddress + 0x40000 > processStopAddress) ConsoleOutput("Textractor: WARNING injected process is very small, possibly a dummy!");
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}(), 0);
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}
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bool ShouldMonoHook(const char* name)
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{
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if (!loadedConfig) return strstr(name, "string:") && !strstr(name, "string:mem");
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for (const char* hook = loadedConfig; hook; hook = strchr(hook + 1, '\t'))
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for (auto start = name; *start; ++start)
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for (int i = 0; ; ++i)
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if (start[i] != hook[i + 1]) break;
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else if (!hook[i + 2] || hook[i + 2] == '\t') return true;
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return false;
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}
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}
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