{
------------------------------------------------
本程序由“啊D”制作!
QQ:9269563
E-Mail:paf@163.net
主页:Http://coold.cn99.com
制作于:2002.8.27
**你可以随意修改代码! 但在转载时请保留此声名!**
------------------------------------------------
}
unit main;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Buttons, StdCtrls, ComCtrls,winsock,SearchPortThread, Spin;
type
TForm1 = class(TForm)
M1: TMemo;
Port1: TEdit;
Port2: TEdit;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Search: TSpeedButton;
SB1: TStatusBar;
MaxThread: TSpinEdit;
Label4: TLabel;
IP: TComboBox;
AboutButton: TSpeedButton;
procedure SearchClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormKeyPress(Sender: TObject; var Key: Char);
procedure AboutButtonClick(Sender: TObject);
procedure FormShow(Sender: TObject);
private
procedure Search_ST;
procedure ThreadDone(Sender: TObject);
procedure Search_Exit;
function HostNameToIP(S: string): DWord;
procedure AddComboBox(CB: TcomboBox);
procedure SearchOK;
{ Private declarations }
public
ThreadList: array of TSearchPortThread; //线程数组
Portlist:Tlist; //线程要用到的Strings
PortIndex:integer; //正在处理的端口号
MaxPort,MinPort:integer; //保存最大和最小的端口号的变量
addr:Tsockaddr; //
about:string; //关于
StopThread:boolean; //停止线程标记
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
{
=============================
= 自定义函数 =
=============================
}
//==== 开始扫描 ====
procedure TForm1.Search_ST();
var
i,j:integer;
Address: DWord;
begin
try
//-- 检测部分 --
Address := HostNameToIP(PChar(IP.text));// 检测IP是否有效!
if (Address = INADDR_NONE) then begin
showmessage('输入的IP、域名无效或网络不通!');
exit;
end;
if MaxThread.Value < 2 then begin //检测线程数
showMessage('线程数请选择 2-300 之间的值!');
exit;
end;
Maxport:=strtoint(port2.text); //最大端口号
Minport:=strtoint(port1.text); //最小端口号
PortIndex:=Minport;
if Minport > Maxport then begin
showMessage('[开始端口]不能大于[结束端口]的值!');
exit;
end;
//端口范围检测
if (minport < 1) or (minport >65535) or (Maxport < 1) or (Maxport >65535) then begin
showMessage('输入数值超过了指定的范围!'#13#10'数值范围:1-65535');
exit;
end;
//------扫描部分-------
search.Caption := '停止扫描';
search.tag :=1;
AddComboBox(IP); //把IP或域名加入列表!
m1.lines.Clear;
m1.Lines.Add('正在扫描: ' + ip.text + #13#10'[端口] | [说明
]'#13#10'-------------------------------------');
m1.Update;
SetLength(ThreadList,MaxThread.Value); //创建 MaxThread.Value 个线程数组
if (length(threadlist) >1) then j:=length(threadlist)-1;
if (maxport-minport)<j then j:=maxport-minport;
for i:=0 to j do
begin
addr.sin_family:=AF_INET; //
addr.sin_addr.S_addr:=Address; //地址
addr.sin_port:=htons(PortIndex); //端口
threadlist[i]:=TSearchPortThread.Create(m1,addr); //创建线程1
threadlist[i].OnTerminate :=ThreadDone; //线程处理完后要处理的事
Portlist.Add(threadlist[i]); //把线程加入 Portlist
sb1.Panels[0].Text :=format('已扫描端口: %s',[inttostr(Portindex)]);
PortIndex:=PortIndex+1;
end;
//出错处理代码
except
showMessage('出错了!');
end;
end;
//===== END =====
//==== 线程退出代码 ======
procedure TForm1.ThreadDone(Sender: TObject);
var
Index:integer;
begin
try
if (PortIndex >= maxport) and (StopThread=false) then begin
SearchOK();
StopThread:=true;
exit;
end;
if (PortIndex > maxport) or (StopThread = true) then exit;
Index := PortList.IndexOf(Sender); //在Filst 中查找刚才的线程对象
PortList.Delete(Index);
addr.sin_port:=htons(portindex); //端口
threadlist[Index]:=TSearchPortThread.Create(m1,addr); //创建线程1
threadlist[Index].OnTerminate :=ThreadDone; //线程处理完后要处理的事
Portlist.Add(threadlist[Index]); //把线程加入 Portlist
sb1.Panels[0].Text :='已扫描端口: ' + inttostr(Portindex);
PortIndex:=PortIndex+1;
except //错误处理
// sb1.Panels[0].Text :='程序出错[线程退出]!';
end;
end;
//===== END =====
//==== 停止扫描 =====
Procedure Tform1.Search_Exit;
var
i:integer;
temp:TSearchPortThread;
begin
try
m1.Lines.Add('[ 用户中断 ]');
sb1.Panels[0].Text :='正在关闭线程.....';
for i:=0 to portlist.Count - 1 do
begin
temp:=portlist.Items[i];
temp.Terminate; //结束线程
end;
SearchOK(); //显示开始扫描
StopThread:=true; //StopThread为真，为停止扫描
except //错误处理
// sb1.Panels[0].Text :='程序出错[停止扫描]!';
end;
end;
//===== END =====
// ===== 扫描完成 =========
procedure Tform1.SearchOK();
begin
search.Caption :='开始扫描';
search.Enabled :=true;
search.tag:=0;
sb1.Panels[0].Text :='扫描完成';
m1.Lines.Add('-------------------------------------'#13#10'扫描完成!');
portlist.Free;//释放PortList的内存空间
end;
//==== END ====
//==== 域名、IP自动转为IP ====
function TForm1.HostNameToIP(S:string):DWord;
const
INADDR_NONE = $FFFFFFFF;
var
Host:pHostent;
Address:DWord;
begin
Address := inet_addr(PChar(S));
if (Address = INADDR_NONE) then begin
Host:=GetHostByName(Pchar(S));
if Host = nil then begin
HostNameToIP:=INADDR_NONE;
exit;
end
else begin
hostNametoip:=longint(pointer(Host^.h_addr_list^)^);
exit;
end;
end
else begin
HostNameToIP:=Address;
exit;
end;
end;
//==== END ====
//==== 自动把ComboBox控件的内容里没有的内容加入列表中 =====！
procedure Tform1.AddComboBox(CB:TcomboBox);
var
a :integer;
begin
a:=CB.Items.IndexOf(CB.Text);
if a=-1 then CB.Items.Add(CB.Text);
end;
//== END ===
// ◎◎◎ 自定义函数 END ◎◎◎
{
=============================
控件部分
==============================
}
//==== Search按钮 =====
procedure TForm1.SearchClick(Sender: TObject);
begin
if search.tag =0 then begin
portlist:=Tlist.Create; //创建Tstring
Search_ST(); //开始
StopThread:=false; //停止为假时，为扫描
end
else begin
Search_Exit(); //停止
end;
end;
//===== END =====
//===== Form 创建 =====
procedure TForm1.FormCreate(Sender: TObject);
var
Wsadata:Twsadata;
begin
WSAStartup(Makeword(2,0),Wsadata);//
about:=m1.Text; //把简介内容保存到About变量中
end;
//===== END =====
//===== Form 退出 ======
procedure TForm1.FormDestroy(Sender: TObject);
begin
//PortList.free; //释放PortList的内存空间
WSAcleanUP;//
end;
//===== END ======
//===== 当按‘回车’、‘Esc’键时的动作 ======
procedure TForm1.FormKeyPress(Sender: TObject; var Key: Char);
begin
if (key =#13) and (search.Tag=0) then SearchClick(Sender); //开始扫描
if (key =#27) and (search.Tag=1) then SearchClick(Sender); //停止扫描
end;
//===== END ======
//==== 关于 =====
procedure TForm1.AboutButtonClick(Sender: TObject);
begin
showMessage(About +
'地址:深圳市龙岗区坪山镇石井太阳村'#13#10#13#10 +
'注:'#13#10 +
'本软件为免费软件,对使用本软件产生'#13#10 +
'的后果,本人不承担任何的责任！'#13#10#13#10 +
'本程序用Delphi编写,如要源码,请和作者联系!'#13#10#13#10 +
'制作时间: 2002年8月27日'
);
//m1.Text:=About;
end;
//==== END =====
//====== 窗口居中 ======
procedure TForm1.FormShow(Sender: TObject);
begin
Left := (Screen.Width - Width) div 2;
Top := (Screen.Height - Height) div 2;
end;
//===== END ====
// ◎◎◎ 控件部分 END ◎◎◎
end.
__________________________________________________________
如果你写扫描程序可千万不要直接去连接,应该使用别的链接方法,否则你的踪迹会被别人
发现.例如使用sys扫描或者fin扫描:
我给你异步socket的api代码:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls,WInSock, ExtCtrls;
const WM_SOCKET=WM_USER+1; //socket消息
type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
Panel1: TPanel;
Memo1: TMemo;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
Sockhd : integer; //socket句柄
Serv_Addr : Tsockaddr;//目标地址
procedure SockEvent(var msg: Tmessage);message WM_SOCKET; //处理cocket消息
procedure DspMsg(msg : string); //显示信息
{ Private declarations }
public
{ Public declarations }
end;
Form1: TForm1;
implementation
{$R *.DFM}
function lookup_hostname(const hostname:string):longint; //把域名转化成IP地址
var
RemoteHost : PHostEnt; (* no, don't free it! *)
ip_address: longint;
begin
ip_address:=-1;
try
if hostname='' then
begin (* no host given! *)
lookup_hostname:=ip_address;
EXIT;
end
else
begin
ip_address:=Winsock.Inet_Addr(PChar(hostname)); (* try a xxx.xxx.xxx.xx first *)
if ip_address=SOCKET_ERROR then begin
RemoteHost:=Winsock.GetHostByName(PChar(hostname));
if (RemoteHost=NIL) or (RemoteHost^.h_length<=0) then
begin
lookup_hostname:=ip_address;
EXIT; (* host not found *)
end
else
ip_address:=longint(pointer(RemoteHost^.h_addr_list^)^);
end;
end;
except
ip_address:=-1;
end;
lookup_hostname:=ip_address;
end;
procedure TFOrm1.DspMsg(msg: string);
begin
memo1.Lines.Add(msg+'...');
if Memo1.Lines.Count>200 then Memo1.Lines.Delete(0);
end;
procedure TForm1.SockEvent(var msg : tmessage); //处理socket消息
begin
case msg.LParam of
FD_READ: begin //标识可以读数据,当然肯定已经链接上了
dspmsg('可以读取数据');
//do what you want do
end;
FD_WRITE: begin
dspmsg('可以发送数据');
//do what you want do
end;
FD_ERROR: begin
dspmsg('发生错误');
//如果你是客户端,则应该是连接不上,即端口没有开
end;
FD_CLOSE: Begin
dspmsg('服务器断开连接');
//对方关闭连接
end;
FD_CONNECT: begin
dspmsg('连结上服务器');
//表示对方端口开放
end;
FD_ACCEPT: begin
dspmsg('接收一个请求');
//这个消息只有服务端可能出现
end;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
var wsaData:TwsaData;
begin //启动winsock动态链接库
if WSAStartup (makeword(2,2), wsaData)<>0 then begin
messagebox(application.handle,'无法启动winsock动态连接库!','警告',MB_OK or MB_APPLMODAL or
MB_ICONWARNING);
Application.Terminate;
end;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin //关闭dll
WSACleanup;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Sockhd := socket(AF_INET,SOCK_STREAM,0); //创建socket句柄
if Sockhd<0 then begin
messagebox(application.handle,'无法创建句柄!','警告',MB_OK or MB_APPLMODAL or
MB_ICONWARNING);
exit;
end;
Serv_addr.sin_addr.s_addr:= lookup_hostname(edit1.Text); //主机名
Serv_addr.sin_family := PF_INET;
Serv_addr.sin_port := htons(23); //any port you want to connect
if WSAAsyncSelect(Sockhd,Form1.handle,WM_SOCKET,FD_ACCEPT or FD_CONNECT or FD_CLOSE or
FD_READ or FD_WRITE)=SOCKET_ERROR
then begin
messagebox(application.handle,'无法创建句柄!','警告',MB_OK or MB_APPLMODAL or
MB_ICONWARNING);
exit;
end; //异步socket
connect(sockhd,serv_addr,sizeof(serv_addr)); //连接,结果会在前面的处理函数处理
end;
end.
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