baseline: OpenMU upstream b5a0961 (fresh source)

src/Network/StreamExtensions.cs

@@ -0,0 +1,29 @@
+// <copyright file="StreamExtensions.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.Network;
+
+using System.IO;
+
+/// <summary>
+/// Extensions for streams.
+/// </summary>
+public static class StreamExtensions
+{
+    /// <summary>
+    /// Reads an integer from the current position of a stream.
+    /// </summary>
+    /// <param name="stream">The stream.</param>
+    /// <returns>The integer from the stream.</returns>
+    /// <exception cref="EndOfStreamException">Length: {stream.Length}; Position: {stream.Position}.</exception>
+    public static uint ReadInteger(this Stream stream)
+    {
+        if (stream.Length < stream.Position + sizeof(uint))
+        {
+            throw new EndOfStreamException($"Length: {stream.Length}; Position: {stream.Position}");
+        }
+
+        return NumberConversionExtensions.MakeDword((byte)stream.ReadByte(), (byte)stream.ReadByte(), (byte)stream.ReadByte(), (byte)stream.ReadByte());
+    }
+}