关于局域网内IP地址问题，请大家进来看一下~~

使用254 条并行线程各线程只要用socket 连接 139 端口（通则存在），比解析主机名快

using  System;
using  System.DirectoryServices;
using  System.Net;

class  TestClass
{
           static  void  Main  (string[]  args)
           {
                       ShowComputers();
           }
           public  static  void  ShowComputers()
           {
                               //or  use  "WinNT://your_domain_name"
                       DirectoryEntry  root  =  new  DirectoryEntry("WinNT:");                                            DirectoryEntries  domains  =  root.Children;
                       domains.SchemaFilter.Add("domain");
                       foreach  (DirectoryEntry  domain  in  domains)
                       {
                                   Console.WriteLine(domain.Name);
                                   DirectoryEntries  computers  =  domain.Children;
                                   computers.SchemaFilter.Add("computer");
                                   foreach  (DirectoryEntry  computer  in  computers)
                                   {
                                               Console.WriteLine("\t"  +  computer.Name);
                                               IPHostEntry  iphe  =  Dns.GetHostByName(computer.Name);
                                               foreach  (IPAddress  ip  in  iphe.AddressList)
                                               {
                                                           Console.WriteLine("\t\t"  +  ip);
                                               }
                                               DirectoryEntries  users  =  computer.Children;
                                   }
                       }
           }

}

你怎么连续这么多问题？搞的好象要写一个pcanywhere 一样我上面说的：使用254 条并行线程
各线程只要用socket 连接 139 端口（通则存在），比解析主机名快这个难道你不会？留言给我又要我帮你写程序吗？晕。。

这是我以前写的一个简易端口扫描，你改改用吧，为了节省空间我将所有控制定义去掉了，你瞧一下程序部分吧using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;using System.Threading;
using System.Net;
using System.Net.Sockets;
[STAThread]
static void Main()
{
Application.Run(new fm_Main());
} private void IPBox(){
ArLi.CommonPrj.MsgBox.Warning(this,"Invalid IP Format\nIP Format:\n\nNumber.Number.Number.*");
} public ArrayList threadList = new ArrayList(); private void GoScan(string ipAddr,int ServerPort) {
Poc clsPoc = new Poc();
clsPoc.myIPAddr = ipAddr;
clsPoc.ServerPort = ServerPort;
clsPoc.sForm = this;
ThreadStart tsTmp = new ThreadStart(clsPoc.PocScanOf);
Thread tdTmp = new Thread(tsTmp); lock (this.lstBox_Job) {
this.lstBox_Job.Items.Add(ipAddr);
this.stBar_Job.Text = this.lstBox_Job.Items.Count.ToString();
}
lock (this.threadList) {
this.threadList.Add(tdTmp);
} Application.DoEvents();
tdTmp.Start();
} private void btn_Start_Click(object sender, System.EventArgs e) {
this.threadList = new ArrayList();
this.lstBox_Job.Items.Clear();
this.lstBox_ok.Items.Clear();

this.txt_Port.Text = this.txt_Port.Text.Trim();
this.txt_IP.Text = this.txt_IP.Text.Trim(); if (this.txt_IP.Text == "" || this.txt_Port.Text == "") {
ArLi.CommonPrj.MsgBox.Warning(this,"IP or Port Empty!");
return;
} try {
int tmp = Int32.Parse(this.txt_Port.Text);
}
catch {
ArLi.CommonPrj.MsgBox.Warning(this,"Port Must Number");
} string[] myIP = this.txt_IP.Text.Trim().Split('.'); if (myIP.Length<4){
this.IPBox();
return;
} try {
int tmp;
for (int i=0; i<=2; i++) {
tmp = Int32.Parse(myIP[i]);
if (tmp <0 || tmp >254){
this.IPBox();
return;
}
}
}
catch {
this.IPBox();
return;
} try {
int tmp = Int32.Parse(myIP[3]);
this.gBox_Target.Enabled = false;
this.GoScan(String.Join(".",myIP),Int32.Parse(this.txt_Port.Text.Trim()));
}
catch {
if (myIP[3] == "*") {
this.gBox_Target.Enabled = false;
for (int i=1; i<=254; i++) {
this.GoScan(myIP[0] + "." + myIP[1] + "." + myIP[2] + "." + i.ToString(),Int32.Parse(this.txt_Port.Text.Trim()));
}
}
else {
this.IPBox();
return;
}
}
} private void fm_Main_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
e.Cancel = ! this.gBox_Target.Enabled;
if (! this.gBox_Target.Enabled) {
ArLi.CommonPrj.MsgBox.Warning(this,"wait Socket connect Close");
}
} private void gBox_Target_EnabledChanged(object sender, System.EventArgs e) {
this.picBox_Wait.Visible = (! this.gBox_Target.Enabled);
} private void fm_Main_Load(object sender, System.EventArgs e) {
this.Text = Application.ProductName;
ArLi.CommonPrj.getResPrj ObjTmp = new ArLi.CommonPrj.getResPrj();
this.Icon = (Icon)ObjTmp.GetResOf("PortScanEx.Image","ico_Main");
this.picBox_Wait.Image = (Image)ObjTmp.GetResOf("PortScanEx.Image","wiz");
// this.picBox_Wait.Location = this.gBox_Target.Location;
// this.picBox_Wait.Size = this.gBox_Target.Size;
} private void lstBox_ok_SelectedIndexChanged(object sender, System.EventArgs e) {
this.cMnu_Ok_Copy.Enabled = (this.lstBox_ok.SelectedItem.ToString() != "");
} private void cMnu_Ok_Copy_IP_Click(object sender, System.EventArgs e) {
Clipboard.SetDataObject(this.lstBox_ok.SelectedItem.ToString(),true);
} private void cMnu_Ok_Copy_IP_Port_Click(object sender, System.EventArgs e) {
Clipboard.SetDataObject(this.lstBox_ok.SelectedItem.ToString() + ":" + this.txt_Port.Text,true);
}
} public class Poc{
public string myIPAddr = "";
public int ServerPort = 0;
public fm_Main sForm = null; public void PocScanOf() {
IPAddress ipAddress = IPAddress.Parse(this.myIPAddr);
IPEndPoint HostEP = new IPEndPoint(ipAddress,this.ServerPort); Socket sock = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
sock.SetSocketOption(
SocketOptionLevel.Socket,
SocketOptionName.ReceiveTimeout,
60 * 1000
);

sock.SetSocketOption(
SocketOptionLevel.Socket,
SocketOptionName.SendTimeout,
60 * 1000
); try {
sock.Connect(HostEP);

byte[] bytesSendStr = new byte[1]{0};
sock.Send(bytesSendStr,bytesSendStr.Length,0);

lock (sForm.lstBox_ok) {
sForm.lstBox_ok.Items.Add(this.myIPAddr);
sForm.stBar_Ok.Text = sForm.lstBox_ok.Items.Count.ToString();
}
}
catch (Exception e){
sForm.stBar_Stats.Text = e.Message;
}
finally {
lock (sForm.lstBox_Job) {
sForm.lstBox_Job.Items.Remove(this.myIPAddr);
sForm.stBar_Job.Text = sForm.lstBox_Job.Items.Count.ToString();
if (sForm.lstBox_Job.Items.Count == 0) {
sForm.gBox_Target.Enabled = true;
}
}
try {
sock.Shutdown(SocketShutdown.Both);
}catch{}
sock.Close();
sock = null;
}
}

调试易

关于局域网内IP地址问题，请大家进来看一下~~

解决方案 »