socket_serverdlg.cpp

C++编程实践与技巧一书各章节的源码

// socket_serverDlg.cpp : implementation file
//

#include "stdafx.h"
#include "socket_server.h"
#include "socket_serverDlg.h"
#include <winsock2.h>

#define port 7777
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CSocket_serverDlg dialog

CSocket_serverDlg::CSocket_serverDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSocket_serverDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSocket_serverDlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CSocket_serverDlg, CDialog)
	//{{AFX_MSG_MAP(CSocket_serverDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_RECV, OnRecv)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSocket_serverDlg message handlers

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

	// 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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CSocket_serverDlg::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 CSocket_serverDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

int CSocket_serverDlg::OnRecv() 
{

     WSADATA wsaData;
	 sockaddr_in local;
	 SOCKET listen_socket,msg_socket;
	 int retval;
	 char Buffer[1000];
 	 sockaddr_in from;
	 int fromlen;

	//Buffer= (char *)malloc(1000*sizeof(char));
	if(WSAStartup(0x202,&wsaData)!=0)
	{
		AfxMessageBox("Error in Startup session");
		WSACleanup();
		return -1;
	}

	local.sin_family=AF_INET;
	local.sin_addr.s_addr=INADDR_ANY;
	local.sin_port=htons(port);

	listen_socket=socket(AF_INET,SOCK_STREAM,0);
	if(listen_socket==INVALID_SOCKET)
	{
		AfxMessageBox("Error in New a Socket.");
		WSACleanup();
		return -2;
	}

	if(bind(listen_socket,(sockaddr *)&local,sizeof(local))!=0)
	{
		AfxMessageBox("Error in Binding socket.");
		WSACleanup();
		return -3;
	};
	fromlen = sizeof(SOCKADDR);
	if(listen(listen_socket,5)!=0)
	{
		AfxMessageBox("Error in Listen."); 
		WSACleanup();
		return -4;
	}	
	
	do{
		if((msg_socket = accept(listen_socket, (LPSOCKADDR)&from, &fromlen)) == INVALID_SOCKET ) 
		{
		    int i=WSAGetLastError();
		    WSACleanup();
			AfxMessageBox("the msg_socket");
			return -1;
		 }
		memset(Buffer,0,sizeof(Buffer));
		do{
			if((retval=recv(msg_socket,Buffer,sizeof(Buffer),0))<0)
			{
				AfxMessageBox("recieve data error");
				return -1;
			}
			}while(retval!=0);

		AfxMessageBox(Buffer);
		closesocket(msg_socket);
	}while(1);
	closesocket(listen_socket);
}