How to write a simple but effective TCP/IP port scanner for Win32

Luca Piergentili

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27 Oct 20017 min read

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An article on how to write a TCP/IP port scanner with a GUI, based on the MFC's property sheet paradigm

tcpscan.zip
- TcpScan
  - CAsyncSock.cpp
  - CBase64.cpp
  - CBinFile.cpp
  - CConfig.cpp
  - CDateTime.cpp
  - CListCtrlEx.cpp
  - CNodeList.cpp
  - CPropertyPageDialog.cpp
  - CPropertySheetDialog.cpp
  - CRegistry.cpp
  - CRegKey.cpp
  - CSock.cpp
  - CTextFile.cpp
  - CUuenc.cpp
  - CWinsock.cpp
  - include
    - CAsyncSock.h
    - CAsyncSockMessages.h
    - CBase64.h
    - CBinFile.h
    - CConfig.h
    - CDateTime.h
    - CListCtrlEx.h
    - CNodeList.h
    - CPropertyPageDialog.h
    - CPropertyPageList.h
    - CPropertySheetDialog.h
    - CPropertySheetDialogMessages.h
    - CRegistry.h
    - CRegKey.h
    - CSock.h
    - CTextFile.h
    - CUuenc.h
    - CWinsock.h
    - env.h
    - lmhosts.h
    - macro.h
    - pragma.h
    - strcpyn.h
    - strichr.h
    - stristr.h
    - TcpConnectPage.h
    - TcpMessages.h
    - TcpPropertySheet.h
    - TcpScan.h
    - TcpScanAddServiceDlg.h
    - TcpScanAddUrlDlg.h
    - TcpScanConfig.h
    - TcpScanPage.h
    - TcpScanVersion.h
    - TcpServicesPage.h
    - typedef.h
    - win32api.h
    - window.h
  - res
    - iconport.ico
    - iconporterror.ico
    - TcpScan.ico
  - resource.h
  - strcpyn.cpp
  - strichr.cpp
  - stristr.cpp
  - TcpConnectPage.cpp
  - TcpPropertySheet.cpp
  - TcpScan.cpp
  - TcpScan.dsp
  - TcpScan.rc
  - TcpScanAddServiceDlg.cpp
  - TcpScanAddUrlDlg.cpp
  - TcpScanConfig.cpp
  - TcpScanPage.cpp
  - TcpServicesPage.cpp
  - win32api.cpp

/*
	CRegKey.h
	Classe base per l'accesso al registro (SDK).
	Riadattata dal codice originale ATL (M$) (vedi http://codeguru.earthweb.com/system/CRegKey.shtml).
	Luca Piergentili, 14/07/99
	lpiergentili@yahoo.com
	http://www.geocities.com/lpiergentili/
*/
#ifndef _CREGKEY_H
#define _CREGKEY_H

#include <stdio.h>
#include <stdlib.h>
#include "window.h"
#include <winreg.h>

#define REGKEY_MAX_SECTION_NAME	_MAX_PATH				// dim. max. nome sezione
#define REGKEY_MAX_KEY_NAME		REGKEY_MAX_SECTION_NAME	// dim. max. nome chiave
#define REGKEY_MAX_KEY_VALUE		REGKEY_MAX_SECTION_NAME	// dim. max. chiave

class CRegKey
{
public:
	CRegKey()									{m_hKey = NULL;}
	virtual ~CRegKey()							{CRegKey::Close();}

	inline void	Attach			(HKEY hKey)	{m_hKey = hKey;}
	HKEY			Detach			(void);

	LONG			Create			(HKEY hKeyParent,
								LPCSTR lpcszKeyName,
								LPSTR = REG_NONE,
								DWORD = REG_OPTION_NON_VOLATILE,
								REGSAM = KEY_ALL_ACCESS,
								LPSECURITY_ATTRIBUTES = NULL,
								LPDWORD = NULL
								);

	LONG			Open				(HKEY hKeyParent,LPCSTR lpcszKeyName,REGSAM = KEY_ALL_ACCESS);
	LONG			Close			(void);

	LONG			QueryValue		(LPSTR lpszValue,LPCSTR lpcszValueName,DWORD* pdwCount);
	LONG			QueryValue		(DWORD& dwValue,LPCSTR lpcszValueName);

	LONG			SetValue			(LPCSTR lpcszValue,LPCSTR lpcszValueName = NULL);
	LONG			SetValue			(DWORD dwValue,LPCSTR lpcszValueName);
	LONG			SetBinaryValue		(DWORD dwValue,LPCSTR lpcszValueName);
	LONG WINAPI	SetValue			(HKEY hKeyParent,LPCSTR lpcszKeyName,LPCSTR lpcszValue,LPCSTR lpcszValueName = NULL);
	LONG			SetKeyValue		(LPCSTR lpcszKeyName,LPCSTR lpcszValue,LPCSTR lpcszValueName = NULL);

	BOOL			DeleteValue		(LPCSTR lpcszValue);
	BOOL			DeleteKey			(LPCSTR lpcszKey);
	BOOL			DeleteSubKey		(LPCSTR lpcszSubKey);
	
	operator		HKEY() const		{return(m_hKey);}

private:
	HKEY m_hKey;
};

#endif // _CREGKEY_H

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Written By

Luca Piergentili

Web Developer

Italy

I like C and C++, Acid Jazz, James Brown, gli Spaghetti Aglio e Olio, alla Bolognesa, alla Puttanesca e le Fettuccine alla Matriciana ('Maccaroni' over the world). Of course I like beautiful big tits girls too, my little car, Frank Zappa, the art of Zen, italian coffee and much more...

How to write a simple but effective TCP/IP port scanner for Win32

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