int mystrcmp(wchar_t* str1, wchar_t* str2) { int i = 0; while (str1[i] != L'\0' && str2[i] != L'\0') { if (str1[i] != str2[i]) { return 1; } i++; } return 0; } int executionguardrail() { // Execution Guardrail: Env Check wchar_t envVarName[] = L"USERPROFILE"; wchar_t tocheck[] = L"{{guardrail_data}}"; WCHAR buffer[1024]; // NOTE: Do not make it bigger, or we have a __chkstack() dependency! DWORD result = GetEnvironmentVariableW(envVarName, buffer, 1024); if (result == 0) { return 6; } if (mystrcmp(buffer, tocheck) != 0) { return 6; } return 0; }