IPPacketInformation.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.Net.Sockets;
 
public struct IPPacketInformation
{
    private readonly IPAddress _address;
 
    private readonly int _networkInterface;
 
    public IPAddress Address => _address;
 
    public int Interface => _networkInterface;
 
    internal IPPacketInformation(IPAddress address, int networkInterface)
    {
        _address = address;
        _networkInterface = networkInterface;
    }
 
    public static bool operator ==(IPPacketInformation packetInformation1, IPPacketInformation packetInformation2)
    {
        if (packetInformation1._networkInterface == packetInformation2._networkInterface)
        {
            if (packetInformation1._address != null || packetInformation2._address != null)
            {
                if (packetInformation1._address != null)
                {
                    return packetInformation1._address.Equals(packetInformation2._address);
                }
                return false;
            }
            return true;
        }
        return false;
    }
 
    public static bool operator !=(IPPacketInformation packetInformation1, IPPacketInformation packetInformation2)
    {
        return !(packetInformation1 == packetInformation2);
    }
 
    public override bool Equals([NotNullWhen(true)] object? comparand)
    {
        if (comparand is IPPacketInformation iPPacketInformation)
        {
            return this == iPPacketInformation;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return _networkInterface.GetHashCode() * -1521134295 + ((_address != null) ? _address.GetHashCode() : 0);
    }
}