/// <summary>
/// Decrementa di una unità l'indirizzo di rete
/// </summary>
public static string Decrement(string address)
{
address = Converters.AddressToBin(address);
if (address == "00000000.00000000.00000000.00000000")
{
throw new Exception("Non decrementabile");
}
address = Formatters.RemovePoints(address);
//
int temp = address.Length;
while (address[address.Length - 1] == 0)
{
address = address.Remove(address.Length - 1);
}
address = address.Remove(address.Length - 1);
address = address + "0";
while (address.Length < temp)
{
address = address + "1";
}
//
address = Formatters.AddPoints(address);
return(address);
}
/// <summary>
/// Dato lo slash di una subnetmask, calcola la subnetmask in base binaria
/// </summary>
/// <param name="slash">Slash (numero di bit della parte network)</param>
/// <returns>Subnetmask in base binaria</returns>
public static string SubnetmaskSlashToBin(int slash)
{
string str = "";
for (int v = 0; v < slash; v++)
{
str += "1";
}
return(Formatters.AddPoints(Formatters.CompleteAddressHead(str)));
}