/// <summary>
/// Initializes a new instance of the <see cref="IPAddressRange"/> class.
/// Create a new range from a begin and end address. Throws an exception if Begin comes after End, or the addresses are not in the same family.
/// </summary>
/// <param name="begin">The begin IPAddress.</param>
/// <param name="end">The end IPAddress.</param>
public IPAddressRange(IPAddress begin, IPAddress end)
{
if (begin == null)
{
throw new ArgumentNullException("begin");
}
if (end == null)
{
throw new ArgumentNullException("end");
}
if (begin.AddressFamily != end.AddressFamily)
{
throw new ArgumentException("IPAddress must be of the same address family", "end");
}
var beginBytes = begin.GetAddressBytes();
var endBytes = end.GetAddressBytes();
if (!Bitwise.LessEqual(endBytes, beginBytes))
{
throw new ArgumentException("Begin must be smaller than the End", "begin");
}
this.Begin = begin;
this.End = end;
}
/// <summary>
/// Determines whether the current IPAddressRange contains the specified ip address range.
/// </summary>
/// <param name="ipAddressRange">The ip address range.</param>
/// <returns>true if the current IPAddressRange contains the specified ip address range; otherwise, false.</returns>
public bool Contains(IPAddressRange ipAddressRange)
{
if (ipAddressRange == null)
{
throw new ArgumentNullException("ipAddressRange");
}
if (this.Begin.AddressFamily != ipAddressRange.Begin.AddressFamily)
{
return(false);
}
return
(Bitwise.GreaterEqual(this.Begin.GetAddressBytes(), ipAddressRange.Begin.GetAddressBytes()) &&
Bitwise.LessEqual(this.End.GetAddressBytes(), ipAddressRange.End.GetAddressBytes()));
}
/// <summary>
/// Determines whether the current IPAddressRange contains the specified ip address.
/// </summary>
/// <param name="ipAddress">The ip address.</param>
/// <returns>true if the current IPAddressRange contains the specified ip address; otherwise, false.</returns>
public bool Contains(IPAddress ipAddress)
{
if (ipAddress == null)
{
throw new ArgumentNullException("ipAddress");
}
if (ipAddress.AddressFamily != this.Begin.AddressFamily)
{
return(false);
}
var adrBytes = ipAddress.GetAddressBytes();
return
(Bitwise.GreaterEqual(this.Begin.GetAddressBytes(), adrBytes) &&
Bitwise.LessEqual(this.End.GetAddressBytes(), adrBytes));
}
/// <summary>
/// Determines whether the current IPAddressRange contains the specified ip address.
/// </summary>
/// <param name="ipAddressString">The ip address.</param>
/// <returns>true if the current IPAddressRange contains the specified ip address; otherwise, false.</returns>
public bool Contains(string ipAddressString)
{
if (string.IsNullOrEmpty(ipAddressString))
{
throw new ArgumentNullException("ipAddressString");
}
var ipAddress = IPAddress.Parse(ipAddressString);
if (ipAddress.AddressFamily != this.Begin.AddressFamily)
{
return(false);
}
var adrBytes = ipAddress.GetAddressBytes();
return
(Bitwise.GreaterEqual(this.Begin.GetAddressBytes(), adrBytes) &&
Bitwise.LessEqual(this.End.GetAddressBytes(), adrBytes));
}