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simulation_core/lib/Packet.Net/PacketDotNet/Tcp/AlternateChecksumRequest.cs

90 lines
2.5 KiB
C#

/*
This file is part of PacketDotNet
PacketDotNet is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PacketDotNet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PacketDotNet. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2010 Evan Plaice <evanplaice@gmail.com>
*/
using System;
using MiscUtil.Conversion;
using PacketDotNet.Utils;
namespace PacketDotNet.Tcp
{
/// <summary>
/// AlternateChecksumRequest Option
/// </summary>
public class AlternateChecksumRequest : Option
{
#region Constructors
/// <summary>
/// Creates an Alternate Checksum Request Option
/// Used to negotiate an alternative checksum algorithm in a connection
/// </summary>
/// <param name="bytes">
/// A <see cref="System.Byte[]"/>
/// </param>
/// <param name="offset">
/// A <see cref="System.Int32"/>
/// </param>
/// <param name="length">
/// A <see cref="System.Int32"/>
/// </param>
/// <remarks>
/// References:
/// http://datatracker.ietf.org/doc/rfc1146/
/// </remarks>
public AlternateChecksumRequest(byte[] bytes, int offset, int length) :
base(bytes, offset, length)
{ }
#endregion
#region Properties
/// <summary>
/// The Checksum
/// </summary>
public ChecksumAlgorighmType Checksum
{
get { return (ChecksumAlgorighmType)Bytes[ChecksumFieldOffset]; }
}
#endregion
#region Methods
/// <summary>
/// Returns the Option info as a string
/// </summary>
/// <returns>
/// A <see cref="System.String"/>
/// </returns>
public override string ToString()
{
return "[" + Kind.ToString() + ": ChecksumType=" + Checksum.ToString() + "]";
}
#endregion
#region Members
// the offset (in bytes) of the Checksum field
const int ChecksumFieldOffset = 2;
#endregion
}
}