| public static IsValidIPv4 ( string address ) : bool | ||
| address | string | |
| return | bool | |
public static bool IsValidIPv4WithNetmask(string address)
{
int num = address.IndexOf("/");
string text = address.Substring(num + 1);
return(num > 0 && IPAddress.IsValidIPv4(address.Substring(0, num)) && (IPAddress.IsValidIPv4(text) || IPAddress.IsMaskValue(text, 32)));
}
private static bool unsafeIsValidIPv6(string address)
{
if (address.Length == 0)
{
return(false);
}
int num = 0;
string text = address + ":";
bool flag = false;
int num2 = 0;
int num3;
while (num2 < text.Length && (num3 = text.IndexOf(':', num2)) >= num2)
{
if (num == 8)
{
return(false);
}
if (num2 != num3)
{
string text2 = text.Substring(num2, num3 - num2);
if (num3 == text.Length - 1 && text2.IndexOf('.') > 0)
{
if (!IPAddress.IsValidIPv4(text2))
{
return(false);
}
num++;
}
else
{
string s = text.Substring(num2, num3 - num2);
int num4 = int.Parse(s, NumberStyles.AllowHexSpecifier);
if (num4 < 0 || num4 > 65535)
{
return(false);
}
}
}
else
{
if (num3 != 1 && num3 != text.Length - 1 && flag)
{
return(false);
}
flag = true;
}
num2 = num3 + 1;
num++;
}
return(num == 8 || flag);
}
public static bool IsValid(string address)
{
return(IPAddress.IsValidIPv4(address) || IPAddress.IsValidIPv6(address));
}