DLL bootstrapper

.gitignore

@@ -30,3 +30,13 @@
 *.exe
 *.out
 *.app
+.vscode/
+*.vcxproj
+*.vcxproj.filters
+*.sln
+*.cmake
+CMakeCache.txt
+x64/
+wininet.dir/
+Release/
+CMakeFiles/

CMakeLists.txt

@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 3.17)
+project(R8PD VERSION 1.0 LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 20)
+
+add_library(wininet SHARED main.cpp)

main.cpp

@@ -0,0 +1,78 @@
+/*
+Written by DisabledMallis (https://github.com/DisabledMallis)
+
+Originally made for the NKHook5 project, repurposed for Round8
+
+Usage:
+	This DLL is loaded when the game loads. This allows us to run our own code before the game's
+	code so we can modify how it loads without patching the binary. This DLL searches for a relative
+	directory called "loaders" which will contain any DLLs that should be injected before the game starts.
+	These DLLs should be 'tweaker' DLLs that prepare & patch the game for mod loading.
+*/
+#include <Windows.h>
+#include <string>
+#include <iostream>
+#include <shlobj_core.h>
+#include <filesystem>
+#include <cstdint>
+
+
+
+//Used to ensure the functions required are properly exported
+#define EXPORT comment(linker, "/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__)
+
+//HMODULE for the original dll
+HMODULE winINet;
+size_t(__stdcall* InternetGetConnectedState_orig)(size_t,int);
+
+extern "C" __declspec(dllexport) size_t __stdcall InternetGetConnectedState(size_t lpdwFlags, int dwReserved) {
+    int result = InternetGetConnectedState_orig(lpdwFlags, dwReserved);
+    return result;
+}
+
+auto initialize() -> int {
+	//Find the original wininet.dll
+    char sys32Path[MAX_PATH];
+
+	//We need to use diff dirs on diff platforms
+	#if INTPTR_MAX == INT64_MAX
+    SHGetFolderPathA(nullptr, CSIDL_SYSTEM, nullptr, SHGFP_TYPE_CURRENT, sys32Path);
+	#elif INTPTR_MAX == INT32_MAX
+    SHGetFolderPathA(nullptr, CSIDL_SYSTEMX86, nullptr, SHGFP_TYPE_CURRENT, sys32Path);
+	#else
+	#error Unknown pointer size or missing size macros!
+	#endif
+
+    std::string sys32Str(sys32Path);
+    std::string wininetPath = sys32Str + "\\wininet.dll";
+
+
+	//Load the original wininet dll
+    winINet = LoadLibraryA(wininetPath.c_str());
+	//Get the original function to call when requested
+    InternetGetConnectedState_orig = (size_t(__stdcall*)(size_t,int))GetProcAddress(winINet, "InternetGetConnectedState");
+
+    //Load tweaker DLLs
+	std::string modsDir = "loaders/";
+	for(const auto& tweaker : std::filesystem::directory_iterator(modsDir)) {
+		LoadLibraryW(tweaker.path().c_str());
+	}
+
+    return 0;
+}
+
+
+extern "C" __declspec(dllexport) bool __stdcall DllMain(
+    HINSTANCE hinstDLL,  // handle to DLL module
+    DWORD fdwReason,     // reason for calling function
+    LPVOID lpReserved )  // reserved
+{
+    // Perform actions based on the reason for calling.
+    switch( fdwReason ) 
+    { 
+        case DLL_PROCESS_ATTACH:
+            initialize();
+            break;
+    }
+    return TRUE;  // Successful DLL_PROCESS_ATTACH.
+}