am: Pass current user UUID to launch parameters

src/core/hle/service/am/am.cpp

@@ -26,6 +26,8 @@
 
 namespace Service::AM {
 
+constexpr std::size_t POP_LAUNCH_PARAMETER_BUFFER_SIZE = 0x88;
+
 IWindowController::IWindowController() : ServiceFramework("IWindowController") {
     // clang-format off
     static const FunctionInfo functions[] = {
@@ -724,16 +726,16 @@ void IApplicationFunctions::EndBlockingHomeButton(Kernel::HLERequestContext& ctx
 }
 
 void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
-    constexpr std::array<u8, 0x88> data{{
+    constexpr std::array<u8, 0x8> header_data{
         0xca, 0x97, 0x94, 0xc7, // Magic
         1,    0,    0,    0,    // IsAccountSelected (bool)
-        1,    0,    0,    0,    // User Id (word 0)
-        0,    0,    0,    0,    // User Id (word 1)
-        0,    0,    0,    0,    // User Id (word 2)
-        0,    0,    0,    0     // User Id (word 3)
-    }};
+    };
+
+    std::vector<u8> buffer(POP_LAUNCH_PARAMETER_BUFFER_SIZE);
 
-    std::vector<u8> buffer(data.begin(), data.end());
+    std::memcpy(buffer.data(), header_data.data(), header_data.size());
+    const auto current_uuid = Settings::values.users[Settings::values.current_user].second.uuid;
+    std::memcpy(buffer.data() + header_data.size(), current_uuid.data(), sizeof(u128));
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};