unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
IdIOHandler, IdGlobal, StdCtrls, IdStack;
type
TForm1 = class(TForm)
Button1: TButton;
Label1: TLabel;
Button2: TButton;
client: TIdTCPClient;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
client: TIdTCPClient;
implementation
{$R *.dfm}
function Tipo_cpu: string;
var
aVendor: array[0..2] of DWord;
iI, iJ : Integer;
begin
asm
push ebx
xor eax, eax
dw $A20F // CPUID instruction
mov DWord ptr aVendor, ebx
mov DWord ptr aVendor[+4], edx
mov DWord ptr aVendor[+8], ecx
pop ebx
end;
for iI := 0 to 2 do
for iJ := 0 to 3 do
Result := Result + Chr((aVendor[iI] and ($000000FF shl (iJ * 8))) shr (iJ * 8));
end;
function GetCPUSpeed: Double;
const
DelayTime = 500;
var
TimerHi, TimerLo: DWORD;
PriorityClass, Priority: Integer;
begin
PriorityClass := GetPriorityClass(GetCurrentProcess);
Priority := GetThreadPriority(GetCurrentThread);
SetPriorityClass(GetCurrentProcess, REALTIME_PRIORITY_CLASS);
SetThreadPriority(GetCurrentThread, THREAD_PRIORITY_TIME_CRITICAL);
Sleep(10);
asm
dw 310Fh
mov TimerLo, eax
mov TimerHi, edx
end;
Sleep(DelayTime);
asm
dw 310Fh
sub eax, TimerLo
sbb edx, TimerHi
mov TimerLo, eax
mov TimerHi, edx
end;
SetThreadPriority(GetCurrentThread, Priority);
SetPriorityClass(GetCurrentProcess, PriorityClass);
Result := TimerLo / (1000 * DelayTime);
end;
function InfoSO: String;
Var piattaforma: string;
win_ver: integer;
Begin
Case (Win32Platform) of VER_PLATFORM_WIN32_WINDOWS:
Begin
piattaforma := 'Windows 9x/Me';
win_ver := Win32BuildNumber AND $0000FFFF;
End;
VER_PLATFORM_WIN32_NT:
Begin
piattaforma := 'Windows NT';
win_ver := Win32BuildNumber;
End;
Else
Begin
piattaforma := 'Windows';
win_ver := 0;
End;
End; // case
If (Win32CSDVersion = '') Then
InfoSO := Format('%s %d.%d (Build %d)', [piattaforma,Win32MajorVersion,
Win32MinorVersion,win_ver])
Else
InfoSO := Format('%s %d.%d (Build %d: %s)', [piattaforma,Win32MajorVersion,
Win32MinorVersion,win_ver,WIN32CSDVersion]);
End;
function SysComputerName: string;
var
I: DWord;
begin
I := MAX_COMPUTERNAME_LENGTH + 1;
SetLength(Result, I);
Windows.GetComputerName(PChar(Result), I);
Result := string(PChar(Result));
end;
function SysUserName: string;
var
I: DWord;
begin
I := 255;
SetLength(Result, I);
Windows.GetUserName(PChar(Result), I);
Result := string(PChar(Result));
end;
function ReadMessage(io: TIdIOHandler; var kind: Byte) : TIdBytes;
var
len: UInt32;
begin
len := io.ReadLongWord();
kind := io.ReadByte;
SetLength(Result, len);
io.ReadBytes(Result, len, False);
end;
function BytesToStr(b: TIdBytes): string;
begin
Result := TEncoding.UTF8.GetString(b);
end;
function StrToBytes(s: string) : TIdBytes;
var
b: TBytes;
len: Integer;
begin
b := TEncoding.UTF8.GetBytes(s);
len := Length(b);
SetLength(Result, len);
CopyMemory(Result, b, len);
end;
function HandleResponse(h: TIdIOHandler): Boolean;
begin
result:= FALSE;
end;
function WaitForCommand(args: Pointer): Cardinal; stdcall;
begin
while client.Connected do
if not HandleResponse(client.IOHandler) then
break;
Result := 0;
end;
procedure WriteMessage(io: TIdIOHandler; kind: Byte; msg: TIdBytes);
var
len: UInt32;
begin
len := Length(msg);
io.Write(len);
io.Write(kind);
io.Write(msg);
end;
procedure SendHello(io: TIdIOHandler);
var
cpu: string;
so: string;
username: string;
pcname: string;
hello: string;
begin
cpu := Tipo_cpu;
so := InfoSO;
username := SysUserName;
pcname := SysComputerName;
hello := cpu + '|' + so + '|' + username + '|' + pcname;
WriteMessage(io, 1, StrToBytes(hello));
end;
procedure TForm1.Button1Click(Sender: TObject);
var
client: TIdTCPClient;
begin
client := TIdTCPClient.Create;
client.Port := 2630;
client.Host := '127.0.0.1';
client.ReadTimeout := 10000;
client.Connect;
Label1.Caption := 'Connesso'
end;
procedure TForm1.Button2Click(Sender: TObject);
var
dwThread: Cardinal;
begin
SendHello(client.IOHandler);
CreateThread(nil, 0, @WaitForCommand, nil, 0, dwThread);
end;
end.
