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using System;
using System.Collections.Generic;
using System.Text;
using System.Net.NetworkInformation;
using Apewer;
namespace Apewer.Network
{
/// <summary>ICMP。</summary>
public class Icmp
{
/// <summary>发送 PING 命令,命令中包含 32 位零数据。</summary>
/// <param name="ip">目标地址。</param>
/// <param name="timeout">等待响应的超时时间(毫秒)。</param>
/// <param name="ttl">命令的起始 TTL 值(在丢弃数据之前可以转发该数据的路由节点数)。</param>
/// <param name="df">是否分段。</param>
/// <returns>命令的返回结果。</returns>
public static Icmp Ping(string ip, int timeout = 1000, byte ttl = 255, bool df = true)
{
var icmp = new Icmp();
if (!string.IsNullOrEmpty(ip) && (timeout > 0))
{
var vip = NetworkUtility.IsIP(ip) ? ip : NetworkUtility.Resolve(ip);
var op = new Ping();
var oo = new PingOptions();
oo.DontFragment = df;
oo.Ttl = ttl;
byte[] bs = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
var or = op.Send((string)vip, NumberUtility.Restrict(timeout, 1, ushort.MaxValue), bs, oo);
icmp._success = (or.Status == IPStatus.Success) ? true : false;
icmp._address = or.Address.ToString();
icmp._time = or.RoundtripTime;
icmp._ttl = or.Options.Ttl;
}
return icmp;
}
private bool _success = false;
private string _address = "";
private long _time = 0;
private int _ttl = 0;
/// <summary>构造函数。</summary>
public Icmp() { }
/// <summary>已成功获取目标的返回。</summary>
public bool Success { get { return _success; } }
/// <summary>返回的目标地址。</summary>
public string Addresss { get { return _address; } }
/// <summary>收到返回所经历的时间(毫秒)。</summary>
public long Time { get { return _time; } }
/// <summary>返回的 TTL 值(在丢弃数据之前可以转发该数据的路由节点数)。</summary>
public int Ttl { get { return _ttl; } }
}
}