25 lines
569 B
C#
25 lines
569 B
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace skyscraper5.DNS.Protocol.Utils
|
|
{
|
|
internal static class ByteExtensions
|
|
{
|
|
public static byte GetBitValueAt(this byte b, byte offset, byte length)
|
|
{
|
|
return (byte)((b >> offset) & ~(0xff << length));
|
|
}
|
|
|
|
public static byte SetBitValueAt(this byte b, byte offset, byte length, byte value)
|
|
{
|
|
int mask = ~(0xff << length);
|
|
value = (byte)(value & mask);
|
|
|
|
return (byte)((value << offset) | (b & ~(mask << offset)));
|
|
}
|
|
}
|
|
}
|