internal static IPAddress Parse(string ipString, bool tryParse)
{
if (ipString == null)
{
if (tryParse)
{
return(null);
}
throw new ArgumentNullException("ipString");
}
uint error = 0;
// IPv6 Changes: Detect probable IPv6 addresses and use separate parse method.
if (ipString.IndexOf(':') != -1)
{
// If the address string contains the colon character
// then it can only be an IPv6 address. Use a separate
// parse method to unpick it all. Note: we don't support
// port specification at the end of address and so can
// make this decision.
uint scope;
byte[] bytes = new byte[IPv6AddressBytes];
error = IPAddressPal.Ipv6StringToAddress(ipString, bytes, out scope);
if (error == IPAddressPal.SuccessErrorCode)
{
// AppCompat: .Net 4.5 ignores a correct port if the address was specified in brackets.
// Will still throw for an incorrect port.
return(new IPAddress(bytes, (long)scope));
}
}
else
{
ushort port;
byte[] bytes = new byte[IPv4AddressBytes];
error = IPAddressPal.Ipv4StringToAddress(ipString, bytes, out port);
if (error == IPAddressPal.SuccessErrorCode)
{
if (port != 0)
{
throw new FormatException(SR.dns_bad_ip_address);
}
return(new IPAddress(bytes));
}
}
if (tryParse)
{
return(null);
}
Exception e = new SocketException(IPAddressPal.GetSocketErrorForErrorCode(error), error);
throw new FormatException(SR.dns_bad_ip_address, e);
}
internal static string IPv6AddressToString(byte[] numbers, uint scopeId)
{
StringBuilder sb = new StringBuilder(INET6_ADDRSTRLEN);
uint errorCode = IPAddressPal.Ipv6AddressToString(numbers, scopeId, sb);
if (errorCode == IPAddressPal.SuccessErrorCode)
{
return(sb.ToString());
}
else
{
throw new SocketException(IPAddressPal.GetSocketErrorForErrorCode(errorCode), errorCode);
}
}