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µ¨ÆÄÀÌ Tip&Trick ¼º°Ý¿¡ ¸ÂÁö ¾Ê´Â ±¤°í,ºñ¹æ,Áú¹®ÀÇ ±ÛÀº Áï½Ã »èÁ¦Çϸç
³»¿ëÀ» º¹»çÇÏ¿© »ç¿ëÇÒ °æ¿ì ¹Ýµå½Ã À̰÷(http://www.howto.pe.kr)À» Ãâó·Î ¸í½ÃÇÏ¿© ÁÖ¼¼¿ä


Category

  ±è¿µ´ë(2004-08-09 20:03:48, Hit : 7228, Vote : 1304
 http://www.howto.pe.kr
 Ping ¼Ò½º

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Winsock;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Memo1: TMemo;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

type
  IPINFO = record
    Ttl     : char;
    Tos     : char;
    IPFlags : char;
    OptSize : char;
    Options : ^char;
  end;

  ICMPECHO = record
    Source   : longint;
    Status   : longint;
    RTTime   : longint;
    DataSize : Shortint;
    Reserved : Shortint;
    pData    : ^variant;
    i_ipinfo : IPINFO;
  end;

  TIcmpCreateFile =
    function():integer;{$IFDEF WIN32} stdcall; {$ENDIF}
  TIcmpCloseHandle =
    procedure(var handle:integer);{$IFDEF WIN32} stdcall;{$ENDIF}
  TIcmpSendEcho =
    function(var handle:integer; endereco:DWORD; buffer:variant;
    tam:WORD; IP:IPINFO; ICMP:ICMPECHO; tamicmp:DWORD;
    tempo:DWORD):DWORD;{$IFDEF WIN32} stdcall; {$ENDIF}
  
var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  wsadt : wsadata;
  icmp :icmpecho;
  HNDicmp : integer;
  hndFile :integer;
  Host :PHostEnt;
  Destino :in_addr;
  Endereco :^DWORD;
  IP : ipinfo;
  Retorno :integer;
  dwRetorno :DWORD;
  x :integer;

  IcmpCreateFile : TIcmpCreateFile;
  IcmpCloseHandle : TIcmpCloseHandle;
  IcmpSendEcho : TIcmpSendEcho;

begin
  if (edit1.Text = '') then
  begin
    Application.MessageBox('È£½ºÆ® À̸§À̳ª IP¸¦ ÀÔ·ÂÇϼ¼¿ä','Error', MB_OK);
    exit;
  end;
  HNDicmp := LoadLibrary('ICMP.DLL');
  if (HNDicmp <> 0) then
  begin
    @IcmpCreateFile := GetProcAddress(HNDicmp,'IcmpCreateFile');
    @IcmpCloseHandle := GetProcAddress(HNDicmp,'IcmpCloseHandle');
    @IcmpSendEcho := GetProcAddress(HNDicmp,'IcmpSendEcho');
    if (@IcmpCreateFile=nil) or (@IcmpCloseHandle=nil) or
       (@IcmpSendEcho=nil) then
    begin
      Application.MessageBox('Error getting ICMP Adress','Error', MB_OK);
      FreeLibrary(HNDicmp);
    end;
  end;
  Retorno := WSAStartup($0101,wsadt);

  if (Retorno <> 0) then
  begin
    Application.MessageBox('WinSocket À» ·ÎµåÇÏÁö ¸øÇÕ´Ï´Ù','WSAStartup', MB_OK);
    WSACleanup();
    FreeLibrary(HNDicmp);
  end;

  Destino.S_addr := inet_addr(Pchar(Edit1.text));
  if (Destino.S_addr = 0) then
  begin
    Host := GetHostbyName(PChar(Edit1.text));
  end
  else
  begin
    Host := GetHostbyAddr(@Destino,sizeof(in_addr), AF_INET);
  end;

  if (host = nil) then
  begin
    Application.MessageBox('Host not found','Error', MB_OK);
    WSACleanup();
    FreeLibrary(HNDicmp);
    exit;
  end;
  memo1.Lines.Add('Pinging ' + Edit1.text);

  Endereco := @Host.h_addr_list;

  HNDFile := IcmpCreateFile();
  for x:= 0 to 4 do
  begin
    Ip.Ttl := char(255);
    Ip.Tos := char(0);
    Ip.IPFlags := char(0);
    Ip.OptSize := char(0);
    Ip.Options := nil;

    dwRetorno := IcmpSendEcho(
                    HNDFile,
                    Endereco^,
                    null,
                    0,
                    Ip,
                    Icmp,
                    sizeof(Icmp),
                    DWORD(5000));

    Destino.S_addr := icmp.source;
    Memo1.Lines.Add('Ping ' + Edit1.text);
  end;


  IcmpCLoseHandle(HNDFile);
  FreeLibrary(HNDicmp);
  WSACleanup();
end;

end.





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