private static bool InternalTryParseCIDR(string expression, int sep, ref IPRange range)
{
range.format = IPRange.Format.Invalid;
int length = expression.Length;
if (sep == 0 || expression[sep] != '/')
{
return(false);
}
IPvxAddress baseAddress;
if (!IPvxAddress.TryParse(expression.Substring(0, sep), out baseAddress))
{
range.exceptionMessage = DataStrings.InvalidIPAddressFormat(expression.Substring(0, sep));
return(false);
}
short cidrLength = 0;
if (!short.TryParse(expression.Substring(sep + 1, length - sep - 1), out cidrLength))
{
range.exceptionMessage = DataStrings.InvalidCIDRLength(expression.Substring(sep + 1, length - sep - 1));
return(false);
}
if (!range.IsValidCIDRLength(cidrLength, baseAddress.AddressFamily))
{
return(false);
}
if (!range.SetAddressesFromCIDR(baseAddress, cidrLength))
{
return(false);
}
range.format = IPRange.Format.CIDR;
return(true);
}
private static bool InternalTryParseLoHi(string expression, int sep, ref IPRange range)
{
range.format = IPRange.Format.Invalid;
int length = expression.Length;
if (sep == 0 || expression[sep] != '-')
{
return(false);
}
IPvxAddress start;
if (!IPvxAddress.TryParse(expression.Substring(0, sep), out start))
{
range.exceptionMessage = DataStrings.InvalidIPAddressFormat(expression.Substring(0, sep));
return(false);
}
IPvxAddress end;
if (!IPvxAddress.TryParse(expression.Substring(sep + 1, length - sep - 1), out end))
{
range.exceptionMessage = DataStrings.InvalidIPAddressFormat(expression.Substring(sep + 1, length - sep - 1));
return(false);
}
range.SetAddresses(start, end);
if (!range.ValidateAddressFamily())
{
return(false);
}
range.format = IPRange.Format.LoHi;
return(true);
}
private static bool InternalTryParseSingleIPAddress(string expression, ref IPRange range)
{
range.format = IPRange.Format.Invalid;
IPvxAddress pvxAddress;
if (!IPvxAddress.TryParse(expression, out pvxAddress))
{
range.exceptionMessage = DataStrings.InvalidIPAddressFormat(expression);
return(false);
}
range.SetAddresses(pvxAddress, pvxAddress);
range.format = IPRange.Format.SingleAddress;
return(true);
}