using System;
using System.IO;

namespace ScreenConnect;

public class PartialStreamWrapper : ReadOnlyStream
{
	private Stream innerStream;

	private long length;

	private bool ownsStream;

	public override long Position { get; set; }

	public PartialStreamWrapper(Stream innerStream, long length, bool ownsStream = false)
	{
		this.innerStream = innerStream.AssertArgumentNonNull("innerStream");
		this.length = length;
		this.ownsStream = ownsStream;
	}

	public override int Read(byte[] buffer, int offset, int count)
	{
		int count2 = Math.Min((int)(length - Position), count);
		int num = innerStream.Read(buffer, offset, count2);
		Position += num;
		return num;
	}

	protected override void Dispose(bool disposing)
	{
		if (disposing && ownsStream)
		{
			innerStream.Dispose();
		}
	}
}