Function SEH_SerializeToArray

src/platform/win/cloud_intercept.cpp:1616–1653

}

static ptrdiff_t SEH_SerializeToArray(void* bodyObj, uint8_t* buf, uint64_t expectedSize) {
    if (expectedSize > (uint64_t)INT_MAX) {
        LOG("[VtHook] SerializeToArray size %llu exceeds INT_MAX, rejecting", expectedSize);
        return -1;
    }

    __try {
        uintptr_t bufAddr = reinterpret_cast<uintptr_t>(buf);
        uintptr_t result = g_serializeToArray(bodyObj, buf, (int)expectedSize);
        if (!result) return -1;

        if (g_detectedSteamVersion.load(std::memory_order_relaxed) >= 1778281814ULL) {
            if ((result & 0xFF) != 0) return (ptrdiff_t)expectedSize;
            return -1;
        }

        if (result >= bufAddr && result <= bufAddr + expectedSize) {
            return static_cast<ptrdiff_t>(result - bufAddr);
        }

        if ((result & 0xFF) != 0) {
            return (ptrdiff_t)expectedSize;
        }

        if (result < bufAddr) {
            LOG("[VtHook] SerializeToArray returned invalid end pointer %p (buf=%p)",
                (void*)result, (void*)bufAddr);
            return -1;
        }

        LOG("[VtHook] SerializeToArray returned invalid end pointer %p (buf=%p)",
            (void*)result, (void*)bufAddr);
        return -1;
    } __except(EXCEPTION_EXECUTE_HANDLER) {
        LOG("[VtHook] EXCEPTION in SerializeToArray: code=0x%08X", GetExceptionCode());
        return -1;
    }
}

static std::vector<uint8_t> SerializeBodyToBytes(void* bodyObj) {
    if (!bodyObj || !g_serializeToArray) return {};