/// <summary>
/// Returns value that indicates the specified address is in range of ip addresses.
/// </summary>
/// <param name="address">An <see cref="System.Net.IPAddress"/> for check.</param>
/// <returns>true if address is in range; otherwise false;</returns>
public virtual bool IsInRange(IPAddress address)
{
EnsureAddressFamilyEquals();
if (address.AddressFamily != Lower.AddressFamily)
{
return(false);
}
byte[] addressBytes = address.GetAddressBytes();
byte[] lowerBytes = Lower.GetAddressBytes();
byte[] upperBytes = Upper.GetAddressBytes();
bool lowerBoundary = true, upperBoundary = true;
for (int i = 0; i < lowerBytes.Length &&
(lowerBoundary || upperBoundary); i++)
{
if ((lowerBoundary && addressBytes[i] < lowerBytes[i]) ||
(upperBoundary && addressBytes[i] > upperBytes[i]))
{
return(false);
}
lowerBoundary &= (addressBytes[i] == lowerBytes[i]);
upperBoundary &= (addressBytes[i] == upperBytes[i]);
}
return(true);
}
public bool IPInRange(IPAddress candidate)
{
byte[] lowerBytes = Lower.GetAddressBytes();
byte[] upperBytes = Upper.GetAddressBytes();
byte[] addressBytes = candidate.GetAddressBytes();
bool lowerBoundary = true, upperBoundary = true;
for (int i = 0; i < lowerBytes.Length && (lowerBoundary || upperBoundary); i++)
{
if ((lowerBoundary && addressBytes[i] < lowerBytes[i]) ||
(upperBoundary && addressBytes[i] > upperBytes[i]))
{
return(false);
}
lowerBoundary &= (addressBytes[i] == lowerBytes[i]);
upperBoundary &= (addressBytes[i] == upperBytes[i]);
}
return(true);
}