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1 using System;
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2 using System.Net;
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3
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4 class ParseAddress
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5 {
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6
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7 private static void Main(string[] args)
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8 {
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9 string IPaddress;
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10
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11 if (args.Length == 0)
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12 {
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13 Console.WriteLine("Please enter an IP address.");
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14 Console.WriteLine("Usage: >cs_parse any IPv4 or IPv6 address.");
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15 Console.WriteLine("Example: >cs_parse 127.0.0.1");
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16 Console.WriteLine("Example: >cs_parse 0:0:0:0:0:0:0:1");
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17 return;
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18 }
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19 else
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20 {
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21 IPaddress = args[0];
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22 }
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23
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24 // Get the list of the IPv6 addresses associated with the requested host.
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25 Parse(IPaddress);
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26 }
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27
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28 // This method calls the IPAddress.Parse method to check the ipAddress
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29 // input string. If the ipAddress argument represents a syntatically correct IPv4 or
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30 // IPv6 address, the method displays the Parse output into quad-notation or
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31 // colon-hexadecimal notation, respectively. Otherwise, it displays an
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32 // error message.
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33 private static void Parse(string ipAddress)
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34 {
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35 try
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36 {
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37 // Create an instance of IPAddress for the specified address string (in
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38 // dotted-quad, or colon-hexadecimal notation).
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39 IPAddress address = IPAddress.Parse(ipAddress);
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40
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41 // Display the address in standard notation.
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42 Console.WriteLine("Parsing your input string: " + "\"" + ipAddress + "\"" + " produces this address (shown in its standard notation): "+ address.ToString());
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43 }
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44
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45 catch(ArgumentNullException e)
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46 {
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47 Console.WriteLine("ArgumentNullException caught!!!");
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48 Console.WriteLine("Source : " + e.Source);
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49 Console.WriteLine("Message : " + e.Message);
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50 }
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51
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52 catch(FormatException e)
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53 {
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54 Console.WriteLine("FormatException caught!!!");
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55 Console.WriteLine("Source : " + e.Source);
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56 Console.WriteLine("Message : " + e.Message);
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57 }
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58
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59 catch(Exception e)
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60 {
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61 Console.WriteLine("Exception caught!!!");
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62 Console.WriteLine("Source : " + e.Source);
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63 Console.WriteLine("Message : " + e.Message);
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64 }
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65 }
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66 } |
