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//
// System.Net.IPEndPoint.cs
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
//
// (C) Ximian, Inc. http://www.ximian.com
//
using System.Net.Sockets;
namespace System.Net {
[Serializable]
public class IPEndPoint : EndPoint {
private IPAddress address;
private int port;
public const int MaxPort = 65535;
public const int MinPort = 0;
public IPEndPoint (IPAddress address, int port)
{
if (address == null)
throw new ArgumentNullException ("Value cannot be null");
Address = address;
Port = port;
}
public IPEndPoint (long iaddr, int port) : this (new IPAddress (iaddr), port)
{
}
public IPAddress Address {
get {
return (address);
}
set {
address=value;
}
}
public override AddressFamily AddressFamily {
get {
return AddressFamily.InterNetwork;
}
}
public int Port {
get {
return port;
}
set {
// LAMESPEC: no mention of sanity checking
// PS: MS controls the range when setting the value
if (value < MinPort || value > MaxPort)
throw new ArgumentOutOfRangeException ("Invalid port");
port = value;
}
}
// bytes 2 and 3 store the port, the rest
// stores the address
public override EndPoint Create(SocketAddress sockaddr) {
int size=sockaddr.Size;
// LAMESPEC: no mention of what to do if
// sockaddr is bogus
if(size<8) {
// absolute minimum amount needed for
// an address family, buffer size,
// port and address
return(null);
}
AddressFamily family=(AddressFamily)sockaddr[0];
if(family!=AddressFamily.InterNetwork) {
return(null);
}
int port=(((int)sockaddr[2])<<8) + (int)sockaddr[3];
long address=(((long)sockaddr[7])<<24) +
(((long)sockaddr[6])<<16) +
(((long)sockaddr[5])<<8) +
(long)sockaddr[4];
IPEndPoint ipe = new IPEndPoint(address, port);
return(ipe);
}
public override SocketAddress Serialize() {
// .net produces a 16 byte buffer, even though
// only 8 bytes are used. I guess its just a
// holdover from struct sockaddr padding.
SocketAddress sockaddr = new SocketAddress(AddressFamily.InterNetwork, 16);
// bytes 2 and 3 store the port, the rest
// stores the address
sockaddr [2] = (byte) ((port>>8) & 0xff);
sockaddr [3] = (byte) (port & 0xff);
sockaddr [4] = (byte) (address.Address & 0xff);
sockaddr [5] = (byte) ((address.Address >> 8) & 0xff);
sockaddr [6] = (byte) ((address.Address >> 16) & 0xff);
sockaddr [7] = (byte) ((address.Address >> 24) & 0xff);
return(sockaddr);
}
public override string ToString() {
return(address.ToString() + ":" + port);
}
public override bool Equals (Object obj)
{
IPEndPoint p = obj as IPEndPoint;
return p != null &&
p.port == port &&
p.address.Equals (address);
}
public override int GetHashCode ()
{
return address.GetHashCode () + port;
}
}
}
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