static List <IPNetwork> RecursiveAdd(IPNetwork target, IPNetwork subtract, List <IPNetwork> newNetwork)
{
if (subtract.Contains(target) || target.Cidr >= 31)
{
return(newNetwork);
}
var splitted = Split(target);
var firstOverLap = subtract.Overlap(splitted[0]);
var secondOverlap = subtract.Overlap(splitted[1]);
if (firstOverLap && secondOverlap)
{
RecursiveAdd(splitted[0], subtract, newNetwork);
RecursiveAdd(splitted[1], subtract, newNetwork);
}
else if (firstOverLap)
{
newNetwork.Add(splitted[1]);
RecursiveAdd(splitted[0], subtract, newNetwork);
}
else if (secondOverlap)
{
newNetwork.Add(splitted[0]);
RecursiveAdd(splitted[1], subtract, newNetwork);
}
return(newNetwork);
}
protected override void EndProcessing()
{
Subnets.Sort();
Subnet last = null;
foreach (Subnet s in Subnets)
{
if (last == null)
{
WriteObject(s.Input);
last = s;
}
else
{
if (last.Network == s.Network)
{
WriteVerbose($"{last.Input} equals {s.Input}. Removing duplicate from list.");
}
else if (IPNetwork.Overlap(last.Network, s.Network))
{
WriteVerbose($"{last.Input} overlaps {s.Input}. Removing {s.Input} from list.");
}
else
{
WriteObject(s.Input);
last = s;
}
}
}
}
private static void OverlapNetwork(ProgramContext ac)
{
foreach (IPNetwork ipnetwork in ac.Networks)
{
bool overlap = IPNetwork.Overlap(ac.OverlapNetwork, ipnetwork);
Console.WriteLine("{0} overlaps {1} : {2}", ac.OverlapNetwork, ipnetwork, overlap);
}
}