private bool CompareOnSuperset(IPBinary ip1, IPBinary ip2)
{
for (var i = 0; i < ip2.Mask; i++)
{
if (ip1.Prefix[i] != ip2.Prefix[i])
{
return(false);
}
}
return(true);
}
public CIDRComparatorResult CompareCidr(string a, string b)
{
var result = CIDRComparatorResult.None;
var ipA = new IPBinary(a);
var ipB = new IPBinary(b);
if (ipA.Prefix == null || ipB.Prefix == null)
{
return(result);
}
result = CIDRComparatorResult.Disjoint;
if (ipA.Mask == ipB.Mask)
{
if (CompareOnEquals(ipA, ipB))
{
result = CIDRComparatorResult.Equals;
}
}
else if (ipA.Mask > ipB.Mask)
{
if (CompareOnSubset(ipA, ipB))
{
result = CIDRComparatorResult.Subset;
}
}
else if (ipA.Mask < ipB.Mask)
{
if (CompareOnSuperset(ipA, ipB))
{
result = CIDRComparatorResult.Superset;
}
}
return(result);
}
