private static void AddHost(string host, string addr)
{
if (IPAddress.TryParse(host, out _))
{
var addr_parts = addr.Split(new[] { ' ', '\t' }, 2, StringSplitOptions.RemoveEmptyEntries);
if (addr_parts.Length >= 2)
{
_ips.insert(new IPAddressCmp(host), new IPAddressCmp(addr_parts[0]), addr_parts[1]);
return;
}
}
var parts = host.Split('.');
var node = Root;
var include_sub = false;
var end = 0;
if (parts[0].Length == 0)
{
end = 1;
include_sub = true;
}
for (var i = parts.Length - 1; i > end; --i)
{
if (!node.ContainsKey(parts[i]))
{
node[parts[i]] = new HostNode();
}
if (node[parts[i]].SubNode == null)
{
node[parts[i]].SubNode = new Dictionary <string, HostNode>();
}
node = node[parts[i]].SubNode;
}
node[parts[end]] = new HostNode(include_sub, addr);
}