端口扫描程序的源码，你自己改改就可以了！
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, ExtCtrls, ScktComp;
type
TForm1 = class(TForm)
Bevel1: TBevel;
Bevel2: TBevel;
Label1: TLabel;
Edit1: TEdit;
Label2: TLabel;
Edit2: TEdit;
Edit3: TEdit;
Label3: TLabel;
Bevel3: TBevel;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Bevel4: TBevel;
Edit4: TEdit;
ListBox1: TListBox;
ClientSock1: TClientSocket;
procedure Button1Click(Sender: TObject);
procedure ClientSock1Connect(Sender: TObject; Socket: TCustomWinSocket);
procedure ClientSock1Error(Sender: TObject; Socket: TCustomWinSocket;
ErrorEvent: TErrorEvent; var ErrorCode: Integer);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
portno:integer;
implementation
{$R *.DFM}
procedure TForm1.Button1Click(Sender: TObject);
begin
button1.enabled:=false;
edit1.enabled:=false;
edit2.enabled:=false;
edit3.enabled:=false;
edit4.enabled:=false;
button2.enabled:=true;
portno:=strtoint(edit2.text);
ClientSock1.address:=edit1.text;
ClientSock1.port:=portno;
ClientSock1.active:=true;
end;
procedure TForm1.ClientSock1Connect(Sender: TObject; Socket: TCustomWinSocket);
label son;
begin
listbox1.items.add('找到打开端口 : '+inttostr(portno));
ClientSock1.active:=false;
portno:=portno+1;
if portno > strtoint(edit3.text) then goto son else
ClientSock1.address:=edit1.text;
ClientSock1.port:=portno;
ClientSock1.active:=true;
son:
end;
procedure TForm1.ClientSock1Error(Sender: TObject; Socket: TCustomWinSocket;
ErrorEvent: TErrorEvent; var ErrorCode: Integer);
label son;
begin
errorcode:=0;
edit4.text:='扫描端口 : '+inttostr(portno);
ClientSock1.active:=false;
portno:=portno+1;
if portno > strtoint(edit3.text) then goto son else
ClientSock1.address:=edit1.text;
ClientSock1.port:=portno;
ClientSock1.active:=true;
son:
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
portno:=strtoint(edit3.text);
button1.enabled:=true;
edit1.enabled:=true;
edit2.enabled:=true;
edit3.enabled:=true;
edit4.enabled:=true;
button2.enabled:=false;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
edit4.text:='';
listbox1.items.clear;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
ClientSock1.active:=false;
end;
end.
