1 files changed, 42 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/Loaders/Npdm/ServiceAccessControl.cs b/src/Ryujinx.HLE/Loaders/Npdm/ServiceAccessControl.cs
new file mode 100644
index 00000000..54012b8a
--- /dev/null
+++ b/src/Ryujinx.HLE/Loaders/Npdm/ServiceAccessControl.cs
@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Text;
+
+namespace Ryujinx.HLE.Loaders.Npdm
+{
+    public class ServiceAccessControl
+    {
+        public IReadOnlyDictionary<string, bool> Services { get; private set; }
+
+        public ServiceAccessControl(Stream stream, int offset, int size)
+        {
+            stream.Seek(offset, SeekOrigin.Begin);
+
+            BinaryReader reader = new BinaryReader(stream);
+
+            int bytesRead = 0;
+
+            Dictionary<string, bool> services = new Dictionary<string, bool>();
+
+            while (bytesRead != size)
+            {
+                byte controlByte = reader.ReadByte();
+
+                if (controlByte == 0)
+                {
+                    break;
+                }
+
+                int  length          = (controlByte & 0x07) + 1;
+                bool registerAllowed = (controlByte & 0x80) != 0;
+
+                services[Encoding.ASCII.GetString(reader.ReadBytes(length))] = registerAllowed;
+
+                bytesRead += length + 1;
+            }
+
+            Services = new ReadOnlyDictionary<string, bool>(services);
+        }
+    }
+}