1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:
57:
58:
59:
60:
61:
62:
63:
64:
65:
66:
67:
68:
69:
70:
71:
72:
73:
74:
75:
76:
77:
78:
79:
80:
81:
82:
83:
84:
85:
86:
87:
88:
89:
90:
91:
92:
93:
94:
95:
96:
97:
98:
99:
100:
101:
102:
103:
104:
105:
106:
107:
108:
109:

unit U_portscan;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  MPlayer, ScktComp, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    ClientSocket1: TClientSocket;
    Button1: TButton;
    Memo1: TMemo;
    Edit1: TEdit;
    Edit2: TEdit;
    Timer1: TTimer;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Edit3: TEdit;
    Label6: TLabel;
    procedure ClientSocket1Error(Sender: TObject; Socket: TCustomWinSocket;
      ErrorEvent: TErrorEvent; var ErrorCode: Integer);
    procedure ClientSocket1Connect(Sender: TObject;
      Socket: TCustomWinSocket);
    procedure Button1Click(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Edit3Change(Sender: TObject);
    procedure Edit1Change(Sender: TObject);
    procedure Edit2Change(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.ClientSocket1Error(Sender: TObject;
  Socket: TCustomWinSocket; ErrorEvent: TErrorEvent;
  var ErrorCode: Integer);
begin

if errorcode<>0 then begin
errorcode:=0;
end;

end;


procedure TForm1.ClientSocket1Connect(Sender: TObject;
  Socket: TCustomWinSocket);
begin


If ClientSocket1.Active = True Then begin

Try                      ClientSocket1.Socket.SendText('Port Scanner look up');
Memo1.Lines.Add('Port : '+IntToStr(ClientSocket1.Port)+' ist online');

except                   ClientSocket1.Active:=False;

end;
end;


end;

procedure TForm1.Button1Click(Sender: TObject);
begin
ClientSocket1.Host := Edit3.Text;
Label3.Caption := Edit2.Text;
Timer1.Enabled:=True;
Label1.Caption := Edit1.Text;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
ClientSocket1.Active := False;
If StrToInt(Label1.cAption) = StrToInt(Edit2.text)-1 Then Timer1.Enabled := False;
ClientSocket1.Port := StrToInt(Label1.Caption);
ClientSocket1.Active := True;
Label1.Caption := IntToStr(StrToInt(Label1.Caption)+1);

end;

procedure TForm1.Edit3Change(Sender: TObject);
begin
Timer1.Enabled:=False;
end;

procedure TForm1.Edit1Change(Sender: TObject);
begin
Timer1.Enabled:=False;
end;

procedure TForm1.Edit2Change(Sender: TObject);
begin
Timer1.Enabled:=False;
end;

end.