Major injector refactoring

injector/src/dll.c

@@ -0,0 +1,74 @@
+#include <stdio.h>
+
+#include <inject.h>
+
+#include <game_p.h>
+
+BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
+    // Only listen for attach
+    if (reason != DLL_PROCESS_ATTACH) {
+        return TRUE;
+    }
+
+    // Get target EXE path
+    char *targetExe = getenv(ENV_EXE_PATH);
+    
+    // Get the path of the DLL to inject
+    char *injectDll = getenv(ENV_DLL_PATH);
+
+    // Get game commandline
+    char *cmdline = getenv(ENV_PROC_CMD);
+
+    // Compute the working directory path
+    char workdir[MAX_PATH];
+    strcpy(workdir, targetExe);
+    *(strrchr(workdir, '\\')) = '\0';
+
+    // Start the game
+    STARTUPINFO si;
+    ZeroMemory(&si, sizeof(si));
+
+    PROCESS_INFORMATION pi;
+    si.cb = sizeof(si);
+    ZeroMemory(&pi, sizeof(pi));
+
+    if (!CreateProcessA(
+        NULL,
+        cmdline,
+        NULL,
+        NULL,
+        FALSE,
+        CREATE_SUSPENDED,
+        NULL,
+        workdir,
+        &si,
+        &pi
+    )) {
+        char message[64];
+        sprintf(message, "Failed to start game process: %ld", GetLastError());
+        MessageBoxA(NULL, message, "Jadeite Launcher Payload", MB_OK | MB_ICONERROR);
+
+        exit(1);
+    }
+
+    // Inject
+    void *payloadStart = &_binary_game_p_o_p_game_p_bin_start;
+    size_t payloadSize = (size_t)&_binary_game_p_o_p_game_p_bin_size;
+    inject(pi.hProcess, payloadStart, payloadSize, injectDll);
+
+    // Optional: wait for user input before resuming (useful for debugging) 
+    char *waitEnabled = getenv("WAIT_BEFORE_RESUME");
+    if (waitEnabled && strcmp(waitEnabled, "") != 0) {
+        char message[64];
+        sprintf(message, "PID: %ld. Press OK to continue", pi.dwProcessId);
+        MessageBoxA(NULL, message, "Jadeite Launcher Payload", MB_OK | MB_ICONINFORMATION);
+    }
+
+    // Resume the process
+    ResumeThread(pi.hThread);
+
+    // The launcher process should now hang untill the game terminates
+    WaitForSingleObject(pi.hProcess, INFINITE);
+
+    return TRUE;
+}