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Updates to Utilities

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This commit is contained in:
Tal Aloni 2016-12-27 10:08:22 +02:00
parent 6cb61ca63e
commit 5508c749ce
13 changed files with 417 additions and 13 deletions
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32
Utilities/ByteUtils/ByteUtils.cs
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@ -1,5 +1,4 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
@ -33,6 +32,35 @@ namespace Utilities
return true;
}
public static byte[] XOR(byte[] array1, byte[] array2)
{
if (array1.Length == array2.Length)
{
return XOR(array1, 0, array2, 0, array1.Length);
}
else
{
throw new ArgumentException("Arrays must be of equal length");
}
}
public static byte[] XOR(byte[] array1, int offset1, byte[] array2, int offset2, int length)
{
if (offset1 + length <= array1.Length && offset2 + length <= array2.Length)
{
byte[] result = new byte[length];
for (int index = 0; index < length; index++)
{
result[index] = (byte)(array1[offset1 + index] ^ array2[offset2 + index]);
}
return result;
}
else
{
throw new ArgumentOutOfRangeException();
}
}
public static long CopyStream(Stream input, Stream output)
{
// input may not support seeking, so don't use input.Position
@ -41,7 +69,7 @@ namespace Utilities
public static long CopyStream(Stream input, Stream output, long count)
{
const int MaxBufferSize = 4194304; // 4 MB
const int MaxBufferSize = 1048576; // 1 MB
int bufferSize = (int)Math.Min(MaxBufferSize, count);
byte[] buffer = new byte[bufferSize];
long totalBytesRead = 0;