Fix latest version of hbl/hb-menu (#795)

* Fix latest version of hbl/hb-menu

This implement GetSettingsItemValueSize (required by hbl) and
GetInternetConnectionStatus (required by hb-menu).

* Address comments

Ryujinx.HLE/HOS/Services/Nifm/StaticService/IGeneralService.cs

@@ -1,5 +1,7 @@
+using Ryujinx.Common;
 using Ryujinx.Common.Logging;
 using Ryujinx.HLE.HOS.Services.Nifm.StaticService.GeneralService;
+using Ryujinx.HLE.HOS.Services.Nifm.StaticService.Types;
 using System;
 using System.Linq;
 using System.Net;
@@ -71,6 +73,27 @@ namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService
             return ResultCode.Success;
         }
 
+        [Command(18)]
+        // GetInternetConnectionStatus() -> nn::nifm::detail::sf::InternetConnectionStatus
+        public ResultCode GetInternetConnectionStatus(ServiceCtx context)
+        {
+            if (!NetworkInterface.GetIsNetworkAvailable())
+            {
+                return ResultCode.NoInternetConnection;
+            }
+
+            InternetConnectionStatus internetConnectionStatus = new InternetConnectionStatus
+            {
+                Type         = InternetConnectionType.WiFi,
+                WifiStrength = 3,
+                State        = InternetConnectionState.Connected,
+            };
+
+            context.ResponseData.WriteStruct(internetConnectionStatus);
+
+            return ResultCode.Success;
+        }
+
         [Command(21)]
         // IsAnyInternetRequestAccepted(buffer<nn::nifm::ClientId, 0x19, 4>) -> bool
         public ResultCode IsAnyInternetRequestAccepted(ServiceCtx context)

Ryujinx.HLE/HOS/Services/Nifm/StaticService/Types/InternetConnectionState.cs

@@ -0,0 +1,11 @@
+namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService.Types
+{
+    enum InternetConnectionState : byte
+    {
+        ConnectingType0 = 0,
+        ConnectingType1 = 1,
+        ConnectingType2 = 2,
+        ConnectingType3 = 3,
+        Connected       = 4,
+    }
+}

Ryujinx.HLE/HOS/Services/Nifm/StaticService/Types/InternetConnectionStatus.cs

@@ -0,0 +1,12 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService.Types
+{
+    [StructLayout(LayoutKind.Sequential)]
+    struct InternetConnectionStatus
+    {
+        public InternetConnectionType  Type;
+        public byte                    WifiStrength;
+        public InternetConnectionState State;
+    }
+}

Ryujinx.HLE/HOS/Services/Nifm/StaticService/Types/InternetConnectionType.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService.Types
+{
+    enum InternetConnectionType : byte
+    {
+        Invalid  = 0,
+        WiFi     = 1,
+        Ethernet = 2,
+    }
+}

Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs

@@ -103,6 +103,50 @@ namespace Ryujinx.HLE.HOS.Services.Settings
             return ResultCode.Success;
         }
 
+        [Command(37)]
+        // GetSettingsItemValueSize(buffer<nn::settings::SettingsName, 0x19>, buffer<nn::settings::SettingsItemKey, 0x19>) -> u64
+        public ResultCode GetSettingsItemValueSize(ServiceCtx context)
+        {
+            long classPos  = context.Request.PtrBuff[0].Position;
+            long classSize = context.Request.PtrBuff[0].Size;
+
+            long namePos  = context.Request.PtrBuff[1].Position;
+            long nameSize = context.Request.PtrBuff[1].Size;
+
+            byte[] Class = context.Memory.ReadBytes(classPos, classSize);
+            byte[] name  = context.Memory.ReadBytes(namePos, nameSize);
+
+            string askedSetting = Encoding.ASCII.GetString(Class).Trim('\0') + "!" + Encoding.ASCII.GetString(name).Trim('\0');
+
+            NxSettings.Settings.TryGetValue(askedSetting, out object nxSetting);
+
+            if (nxSetting != null)
+            {
+                ulong settingSize;
+
+                if (nxSetting is string stringValue)
+                {
+                    settingSize = (ulong)stringValue.Length + 1;
+                }
+                else if (nxSetting is int)
+                {
+                    settingSize = sizeof(int);
+                }
+                else if (nxSetting is bool)
+                {
+                    settingSize = 1;
+                }
+                else
+                {
+                    throw new NotImplementedException(nxSetting.GetType().Name);
+                }
+
+                context.ResponseData.Write(settingSize);
+            }
+
+            return ResultCode.Success;
+        }
+
         [Command(38)]
         // GetSettingsItemValue(buffer<nn::settings::SettingsName, 0x19, 0x48>, buffer<nn::settings::SettingsItemKey, 0x19, 0x48>) -> (u64, buffer<unknown, 6, 0>)
         public ResultCode GetSettingsItemValue(ServiceCtx context)