public IPv4(string IPAddress, IPv4Type ipType = IPv4Type.IPAddress)
{
switch (ipType)
{
default:
case IPv4Type.IPAddress:
this.IPAddress = IPAddress;
eIPAddress = IP2sIP(IPAddress, IPv4Type.eIPAddress);
kIPAddress = IP2sIP(IPAddress, IPv4Type.kIPAddress);
break;
case IPv4Type.eIPAddress:
eIPAddress = IPAddress;
IPAddress = sIP2IP(eIPAddress, ipType);
kIPAddress = IP2sIP(IPAddress, IPv4Type.kIPAddress);
break;
case IPv4Type.kIPAddress:
kIPAddress = IPAddress;
IPAddress = sIP2IP(kIPAddress, IPv4Type.kIPAddress);
eIPAddress = IP2sIP(IPAddress, IPv4Type.eIPAddress);
break;
}
NumAddress = IP2Num(IPAddress);
}
public object Read(IPv4Type pv4Type)
{
var ipv4bytes = reader.ReadBytes(4);
Array.Reverse(ipv4bytes);
return(new IPAddress(ipv4bytes));
}
public void Write(IPv4Type pv4Type, object value)
{
var address4 = ExtractIPAddress(value);
if (address4.AddressFamily != System.Net.Sockets.AddressFamily.InterNetwork)
{
throw new ArgumentException($"Expected IPv4, got {address4.AddressFamily}");
}
var ipv4bytes = address4.GetAddressBytes();
Array.Reverse(ipv4bytes);
writer.Write(ipv4bytes, 0, ipv4bytes.Length);
}
private static string GetBaseN(IPv4Type type)
{
string baseN;
switch (type)
{
default:
case IPv4Type.eIPAddress:
baseN = BaseN_e;
break;
case IPv4Type.kIPAddress:
baseN = BaseN_k;
break;
}
return(baseN);
}
public static string sIP2IP(string sIP, IPv4Type sIPType)
{
uint numAddress = (uint)BMath.BaseNToBase10(sIP, GetBaseN(sIPType));
return(Num2IP(numAddress));
}
public static string IP2sIP(string IP, IPv4Type sIPType)
{
return(BMath.Base10ToBaseN(IP2Num(IP), GetBaseN(sIPType)));
}
