ipaddressesdlg.cpp

获取局域网内IP List 及 用户列表

// ipaddressesDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ipaddresses.h"
#include "ipaddressesDlg.h"
#include "winsock2.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

HANDLE g_GetMutex;
UINT GetIps(LPVOID pParam);

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CIpaddressesDlg dialog

CIpaddressesDlg::CIpaddressesDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CIpaddressesDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CIpaddressesDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CIpaddressesDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CIpaddressesDlg)
	DDX_Control(pDX, IDC_LIST2, m_LBIPs);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CIpaddressesDlg, CDialog)
	//{{AFX_MSG_MAP(CIpaddressesDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTNIP, OnBtnip)
	ON_BN_CLICKED(IDC_BTNRefresh, OnBTNRefresh)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CIpaddressesDlg message handlers

BOOL CIpaddressesDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	m_LBIPs.ResetContent();
	g_GetMutex = CreateMutex(NULL,false,NULL);
	
	AfxBeginThread(GetIps,NULL);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CIpaddressesDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CIpaddressesDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CIpaddressesDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CIpaddressesDlg::OnBtnip() 
{
	// TODO: Add your control notification handler code here
	CString strTemp;
	struct hostent *host;
	
	struct in_addr *ptr; // To retrieve the IP Address 
	
	
	DWORD dwScope = RESOURCE_CONTEXT;
	NETRESOURCE *NetResource = NULL;
	HANDLE hEnum;
	WNetOpenEnum( dwScope, NULL, NULL, 
		NULL, &hEnum );
	
	WSADATA wsaData;
	WSAStartup(MAKEWORD(1,1),&wsaData);
	
	if ( hEnum )
	{
		DWORD Count = 0xFFFFFFFF;
		DWORD BufferSize = 2048;
		LPVOID Buffer = new char[2048];
		WNetEnumResource( hEnum, &Count, 
			Buffer, &BufferSize );
		NetResource = (NETRESOURCE*)Buffer;
		
		char szHostName[200];
		unsigned int i;
		
		for ( i = 0; 
        i < BufferSize/sizeof(NETRESOURCE); 
        i++, NetResource++ )
		{
			if ( NetResource->dwUsage == 
				RESOURCEUSAGE_CONTAINER && 
				NetResource->dwType == 
				RESOURCETYPE_ANY )
			{
				if ( NetResource->lpRemoteName )
				{
					CString strFullName = 
						NetResource->lpRemoteName;
					if ( 0 == 
						strFullName.Left(2).Compare("\\\\") )   
						strFullName = 
                        strFullName.Right(
						strFullName.GetLength()-2);
					
					gethostname( szHostName, 
						strlen( szHostName ) );
					host = gethostbyname(strFullName);
					
					if(host == NULL) continue; 
					ptr = (struct in_addr *) 
						host->h_addr_list[0];                    
					
					// Eg. 211.40.35.76 split up like this.             
					int a = ptr->S_un.S_un_b.s_b1;  // 211           
					int b = ptr->S_un.S_un_b.s_b2;  // 40
					int c = ptr->S_un.S_un_b.s_b3;  // 35
					int d = ptr->S_un.S_un_b.s_b4;  // 76
					
					strTemp.Format("%s -->  %d.%d.%d.%d",
						strFullName,a,b,c,d);
					AfxMessageBox(strTemp);
				}
			}
		}
		
		delete Buffer;
		WNetCloseEnum( hEnum ); 
	}
	
	WSACleanup();

}


UINT GetIps(LPVOID pParam)
{
	WaitForSingleObject(g_GetMutex,INFINITE);

	CIpaddressesDlg * main = (CIpaddressesDlg *)(AfxGetApp()->m_pMainWnd);
	main->m_LBIPs.ResetContent();
	CString strTemp;
	struct hostent *host;	
	struct in_addr *ptr; // To retrieve the IP Address	
	
	DWORD dwScope = RESOURCE_CONTEXT;
	NETRESOURCE *NetResource = NULL;
	HANDLE hEnum;
	WNetOpenEnum( dwScope, NULL, NULL, 	NULL, &hEnum );
	
	WSADATA wsaData;
	WSAStartup(MAKEWORD(1,1),&wsaData);
	
	if ( hEnum )
	{
		DWORD Count = 0xFFFFFFFF;
		DWORD BufferSize = 2048;
		LPVOID Buffer = new char[2048];
		WNetEnumResource( hEnum, &Count, Buffer, &BufferSize);
		NetResource = (NETRESOURCE*)Buffer;
		
		char szHostName[200];
		unsigned int i;
		
		for ( i = 0; i < BufferSize/sizeof(NETRESOURCE); i++, NetResource++ )
		{
			if ( NetResource->dwUsage == RESOURCEUSAGE_CONTAINER && NetResource->dwType == RESOURCETYPE_ANY )
			{
				if ( NetResource->lpRemoteName )
				{
					CString strFullName = NetResource->lpRemoteName;
					if ( 0 == strFullName.Left(2).Compare("\\\\") ) 
						strFullName = strFullName.Right(strFullName.GetLength()-2);
					
					gethostname( szHostName, strlen( szHostName ) );
					host = gethostbyname(strFullName);
					
					if(host == NULL) 
						continue; 
					ptr = (struct in_addr *)host->h_addr_list[0];                    
					
					// Eg. 211.40.35.76 split up like this.             
					int a = ptr->S_un.S_un_b.s_b1;  // 211           
					int b = ptr->S_un.S_un_b.s_b2;  // 40
					int c = ptr->S_un.S_un_b.s_b3;  // 35
					int d = ptr->S_un.S_un_b.s_b4;  // 76
					
					strTemp.Format("%s -->  %d.%d.%d.%d",strFullName,a,b,c,d);
					main->m_LBIPs.AddString((LPCTSTR)strTemp);
					//main->m_LBIPs.AddString("ddd");
					main->m_LBIPs.Invalidate();
				}
			}
		}
		
		delete Buffer;
		WNetCloseEnum( hEnum ); 
	}
	
	WSACleanup();

	ReleaseMutex(g_GetMutex);
	return 0;
}

void CIpaddressesDlg::OnBTNRefresh() 
{
	// TODO: Add your control notification handler code here
	AfxBeginThread(GetIps,NULL);
}