khallaandClaude Opus 5.5
70673dc301
sacred_re.dll/.exe/.ini/.log/_crash files are now sacredK.*; inventory saves with the old "sacred_re.inventory" format id still load. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// sacredK.dll entry point. Loaded into sacred.exe by the launcher before the
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// game's own entry point runs, so every hook is in place from the first
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// instruction of game code.
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#include <string>
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#include <windows.h>
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#include <detours.h>
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#include "re/config.h"
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#include "re/crash.h"
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#include "re/hook.h"
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#include "re/log.h"
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#include "re/patch.h"
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namespace {
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// The only build we support: Sacred Gold 2.28, sacred.exe
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// sha256 fe774c6f985b02c9ce03103c2e55e5d853258c0cc3c737ccd211219c74460cb9.
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// Every hook address in this project is specific to it.
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constexpr DWORD kExpectedTimestamp = 0x451BBE74;
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constexpr DWORD kExpectedSizeOfImage = 0x01999000;
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std::wstring ModuleDir(HMODULE module) {
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wchar_t path[MAX_PATH];
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DWORD length = GetModuleFileNameW(module, path, MAX_PATH);
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std::wstring dir(path, length);
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return dir.substr(0, dir.find_last_of(L"\\/") + 1);
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}
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bool IsSupportedGameBuild() {
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auto base = reinterpret_cast<const BYTE*>(GetModuleHandleW(nullptr));
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auto dos = reinterpret_cast<const IMAGE_DOS_HEADER*>(base);
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auto nt = reinterpret_cast<const IMAGE_NT_HEADERS32*>(base + dos->e_lfanew);
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re::Log("game image: timestamp 0x%08lx, size 0x%08lx", nt->FileHeader.TimeDateStamp,
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nt->OptionalHeader.SizeOfImage);
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return nt->FileHeader.TimeDateStamp == kExpectedTimestamp &&
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nt->OptionalHeader.SizeOfImage == kExpectedSizeOfImage;
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}
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void Startup(HMODULE module) {
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std::wstring dir = ModuleDir(module);
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re::OpenLog((dir + L"sacredK.log").c_str());
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re::SetConfigPath(dir + L"sacredK.ini");
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re::Log("sacredK loaded");
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re::InstallCrashHandler(dir);
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if (!IsSupportedGameBuild()) {
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re::Log("unsupported sacred.exe build, no hooks installed");
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MessageBoxW(nullptr,
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L"This sacred.exe is not the supported Sacred Gold 2.28 build.\n"
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L"sacredK will not patch it; the game runs unmodified.",
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L"sacredK", MB_OK | MB_ICONWARNING);
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return;
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}
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if (re::ConfigInt("debug", "WaitForDebugger", 0)) {
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re::Log("waiting up to 60 s for a debugger to attach");
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for (int i = 0; i < 600 && !IsDebuggerPresent(); ++i) {
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Sleep(100);
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}
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re::Log(IsDebuggerPresent() ? "debugger attached" : "no debugger, continuing");
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}
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re::InstallHooks();
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re::RunStartupFunctions();
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}
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} // namespace
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BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID) {
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if (DetourIsHelperProcess()) {
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return TRUE;
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}
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if (reason == DLL_PROCESS_ATTACH) {
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DisableThreadLibraryCalls(module);
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DetourRestoreAfterWith();
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Startup(module);
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}
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return TRUE;
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}
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