inject.cpp

// dllmain.cpp : Defines the entry point for the DLL application.
#include "pch.h"
#include <string>

HMODULE globalhModule;

VOID PipeFunctions(std::string func) {
    if (func.compare("remove") == 0) {
        FreeLibraryAndExitThread(globalhModule, 0);
    }
    if (func.compare("gameassembly") == 0) {
        HMODULE hmod = GetModuleHandle(L"GameAssembly.dll");

        char buffer[9];   // Adjust size if you're on a 64-bit system
        sprintf_s(buffer, "%x", (size_t)GetProcAddress(hmod, NULL));

        MessageBoxA(NULL, buffer, "DEBUG", MB_OK | MB_ICONQUESTION);
    }
}

void OnAttach(HMODULE hModule) {

    HANDLE hPipe;
    char buffer[1024];
    DWORD dwRead;

    std::string myProcID = "\\\\.\\pipe\\EQTPipe" + std::to_string(GetCurrentProcessId());
    std::wstring To(myProcID.begin(), myProcID.end());
    LPCWSTR a = To.c_str();

    hPipe = CreateNamedPipe(a,
        PIPE_ACCESS_DUPLEX | PIPE_TYPE_BYTE | PIPE_READMODE_BYTE,
        PIPE_WAIT,
        1,
        1024 * 16,
        1024 * 16,
        NMPWAIT_USE_DEFAULT_WAIT,
        NULL);
    while (hPipe != NULL)
    {
        if (ConnectNamedPipe(hPipe, NULL) != FALSE)
        {
            while (ReadFile(hPipe, buffer, sizeof(buffer) - 1, &dwRead, NULL) != FALSE)
            {
                buffer[dwRead] = '\0';
                std::string b = buffer;
                std::string::size_type pos = 0;
                while ((pos = b.find("\r\n", pos)) != std::string::npos)
                {
                    b.erase(pos, 2);
                }
                PipeFunctions(b);
            }
        }
        DisconnectNamedPipe(hPipe);
    }

    globalhModule = hModule;
}


BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
                     )
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)OnAttach, hModule, 0, NULL);
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}