using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
public static class StreamUtil
{
public static void CopyStream(Stream input, Stream output)
{
int bufferSize = 4096;
byte[] buffer = new byte[bufferSize];
while (true)
{
int read = input.Read(buffer, 0, buffer.Length);
if (read <= 0)
{
return;
}
output.Write(buffer, 0, read);
}
}
}