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//
// System.Net.NetworkInformation.PhysicalAddress
//
// Author:
// Gonzalo Paniagua Javier (gonzalo@novell.com)
//
// Copyright (c) 2006 Novell, Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System;
using System.Text;
namespace System.Net.NetworkInformation {
public class PhysicalAddress {
public static readonly PhysicalAddress None = new PhysicalAddress (new byte [0]);
byte [] bytes;
public PhysicalAddress (byte [] address)
{
this.bytes = address;
}
public static PhysicalAddress Parse (string address)
{
if (address == null)
return None;
if (address == "")
throw new FormatException ("Invalid physical address.");
// MS fails with IndexOutOfRange for something like: "00-0"
int ndashes = 0;
foreach (char c in address) {
if (c == '-')
ndashes++;
}
int len = address.Length;
if (((len - 2) / 3) != ndashes)
throw new FormatException ("Invalid physical address.");
byte [] data = new byte [ndashes + 1];
int idx = 0;
for (int i = 0; i < len; i++) {
byte b = (byte) (GetValue (address [i++]) << 8);
b += GetValue (address [i++]);
if (address [i] != '-')
throw new FormatException ("Invalid physical address.");
data [idx++] = b;
}
return new PhysicalAddress (data);
}
static byte GetValue (char c)
{
if (c >= 0 && c <= 9)
return (byte) (c - '0');
if (c >= 'a' && c <= 'f')
return (byte) (c - 'a' + 10);
if (c >= 'A' && c <= 'F')
return (byte) (c - 'A' + 10);
throw new FormatException ("Invalid physical address.");
}
public override bool Equals (object comparand)
{
PhysicalAddress other = comparand as PhysicalAddress;
if (other == null)
return false;
// new byte [0] != new byte [0]
return (bytes == other.bytes);
}
public override int GetHashCode ()
{
if (bytes == null)
return 0;
int a = 5;
foreach (byte b in bytes)
a = (a << 3) + b;
return a;
}
public byte [] GetAddressBytes ()
{
return bytes;
}
public override string ToString ()
{
if (bytes == null)
return "";
StringBuilder sb = new StringBuilder ();
foreach (byte b in bytes)
sb.AppendFormat ("{0:2X}", (uint) b);
return sb.ToString ();
}
}
}
#endif
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