static void Main(string[] args) { CommandLine.Version v = new CommandLine.Version(0, 1, 1, "ipadr"); Cli cli = new Cli(); cli.usage_text = "ipaddr v4|v6 <adr> [<mask>]"; cli.version = v; cli.AddSubcommand("v4", "IPV4"); cli.AddSubcommand("v6", "IPV6"); cli.AddSwitch("m", "mask", "test operand - is valid subnet mask?", null, "false"); cli.Analyze(args); if (cli.Present("help") || cli.Present("h")) { cli.Help(); } if (cli.Present("m")) { Console.WriteLine("Mask validation"); string mval = cli.GetString("m"); Console.WriteLine("Mask value {0,0}", mval); } else { Console.WriteLine("No mask specified"); if (cli.Present("mask")) { Console.WriteLine("Mask value {0,0}", cli.GetString("mask")); } } foreach (string op in cli.Operands()) { Console.WriteLine("Operand {0,1}", op); } string sc = cli.subcommand; IPAddress adr; switch (sc) { case "v4": bool bstat = false; adr = new IPV4Address(); string[] cliargs = cli.Operands(); if (cliargs.Length >= 1) { adr = new IPV4Address(); bstat = adr.Analyze(cliargs[0]); if (!bstat) { Console.WriteLine("Please provide a valid IP Address"); return; } if (cliargs.Length >= 2) { bstat = adr.SetMask(cliargs[1]); if (!bstat) { Console.WriteLine("Invalid network mask"); return; } } else { if (cli.Present("m")) { string mval = cli.GetString("m"); adr = new IPV4Address(); bstat = adr.Analyze(cliargs[0]); if (!bstat) { Console.WriteLine("Invalid address for mask validation"); return; } int mlen = IPV4Address.ValidMask((IPV4Address)adr); if (mlen > 0) { Console.WriteLine("Valid Mask"); return; } } } adr.Show(); } break; case "v6": adr = new IPV6Address(); break; default: Console.WriteLine("Unrecognized subcommand {0,1}", sc); return; } }