0,0 → 1,49 |
using System; |
using System.Collections.Generic; |
using System.Net; |
using System.Text; |
using System.Text.RegularExpressions; |
|
namespace TCPproxy |
{ |
abstract class HostUtils |
{ |
public static IPAddress ResendHostToIp(string host) |
{ |
IPAddress ip; |
|
if(host == "") |
{ |
throw new Exception("Please enter the resend host"); |
} |
|
Regex ipRegex = new Regex(@"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$"); |
if(ipRegex.Match(host).Success) |
{ |
try |
{ |
ip = IPAddress.Parse(host); |
} |
catch(FormatException) |
{ |
throw new Exception("Wrong IP address of the resend host"); |
} |
} |
else |
{ |
IPHostEntry hostInfo = Dns.GetHostEntry(host); |
|
if(hostInfo.AddressList.Length > 0) |
{ |
ip = hostInfo.AddressList[0]; |
} |
else |
{ |
throw new Exception("Cannot find IP address of the resend host"); |
} |
} |
|
return ip; |
} |
} |
} |