46 lines
1.2 KiB
C#
46 lines
1.2 KiB
C#
using System.Net;
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using System.Net.Sockets;
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namespace IP_port_checker.PortScanner
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{
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public class TCPChecker
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{
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private static async Task<bool> IsPortOpen(IPAddress ip, int port)
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{
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try
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{
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using var tcp = new TcpClient();
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var task = tcp.ConnectAsync(ip, port);
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var timeout = Task.Delay(500);
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if (await Task.WhenAny(task, timeout) == task)
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{
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return true;
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}
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return false;
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}
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catch
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{
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return false;
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}
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}
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public static async Task ScanPort(IPAddress ip, int stport, int endport)
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{
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var tasks = new List<Task<bool>>();
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for (int port = stport; port <= endport; port++)
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{
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tasks.Add(IsPortOpen(ip, port));
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}
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bool[] res = await Task.WhenAll(tasks);
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for (int i = 0; i < res.Length; i++)
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if (res[i])
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Console.WriteLine($"[{DateTime.Now:HH:mm.ss.ffff}] Порт {stport + i} открыт");
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Console.WriteLine();
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}
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}
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}
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//127.0.0.1 |