windows socket编程实验报告.docVIP

深 圳 大 学 实 验 报 告 课程名称： 计算机网络 实验项目名称： windows socket编程 学院： 专业： 指导教师： 报告人： 学号： 班级： 实验时间： 2014.12.19 实验报告提交时间： 2014.12.26 教务处制实验目的与要求： 实验目的熟悉和掌握socket编程的基本理论和方法。掌握基于TCP和UDP的工作原理以及Socket编程的一般方法，能够编写简单的网络应用程序。实验要求采用无连接协议的异步模式，编写服务端及客户端应用程序，实现两者之前文字信息的传输。方法、步骤：分别建立两个项目，server和client，在VC6.0-新建-工程-win32 application-输入项目名-选择 a typical hello world win32 application。并按照图片中的要求添加代码。2. 调试程序。3. 两台电脑实现链接。实验过程及内容： 1.分别建立两个项目，server和client，在VC6.0-新建-工程-win32 application-输入项目名-选择 a typical hello world win32 application。并按照图片中的要求添加代码。2.调试程序。3.两台电脑实现链接。Server端/ server.cpp : Defines the entry point for the application./#include stdafx.h#include resource.h#define MAX_LOADSTRING 10000#include#pragma comment(lib,Ws2_32.lib)WSADATA ws;SOCKET S;struct sockaddr_in lAddr,rAddr;int LPort=6666;char LIP=0.0.0.0;char Msg88;int d,l=sizeof(rAddr);void SetSockAddr(struct sockaddr_in*A,WORD Port,char*IP)A-sin_family=AF_INET;A-sin_port=htons(Port);A-sin_addr.s_addr=inet_addr(IP);TCHAR messageDisplayMAX_LOADSTRING=_T();HWND hSend;HWND hText;/ Global Variables:HINSTANCE hInst;/ current instanceTCHAR szTitleMAX_LOADSTRING;/ The title bar textTCHAR szWindowClassMAX_LOADSTRING;/ The title bar text/ Foward declarations of functions included in this code module:ATOMMyRegisterClass(HINSTANCE hInstance);BOOLInitInstance(HINSTANCE, int);LRESULT CALLBACKWndProc(HWND, UINT, WPARAM, LPARAM);LRESULT CALLBACKAbout(HWND, UINT, WPARAM, LPARAM);int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) / TODO: Place code here.MSG msg;HACCEL hAccelTable;/ Initialize global stringsLoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);LoadString(hInstance, IDC_SERVER, szWindowClass, MAX_LOADSTRING);MyRegisterClass(hInstance);/ Perform application initialization:if (!InitInstance (hInstance, nCmdShow) return FALSE;hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_SERVER);/ Main message loop:while (GetMessage(&msg, NULL, 0, 0) if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg) TranslateMessage(&msg);DispatchMessage(&msg);return msg.wParam;/ FUNCTION: MyRegisterClass()/ PURPOSE: Registers the window class./ COMMENTS:/ This function and its usage is only necessary if you want this code/ to be compatible with Win32 systems prior to the RegisterClassEx/ function that was added to Windows 95. It is important to call this function/ so that the application will get well formed small icons associated/ with it./ATOM MyRegisterClass(HINSTANCE hInstance)WNDCLASSEX wcex;wcex.cbSize = sizeof(WNDCLASSEX); wcex.style= CS_HREDRAW | CS_VREDRAW;wcex.lpfnWndProc= (WNDPROC)WndProc;wcex.cbClsExtra= 0;wcex.cbWndExtra= 0;wcex.hInstance= hInstance;wcex.hIcon= LoadIcon(hInstance, (LPCTSTR)IDI_SERVER);wcex.hCursor= LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground= (HBRUSH)(COLOR_WINDOW+1);wcex.lpszMenuName= (LPCSTR)IDC_SERVER;wcex.lpszClassName= szWindowClass;wcex.hIconSm= LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);return RegisterClassEx(&wcex);/ FUNCTION: InitInstance(HANDLE, int)/ PURPOSE: Saves instance handle and creates main window/ COMMENTS:/ In this function, we save the instance handle in a global variable and/ create and display the main program window./BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) HWND hWnd; hInst = hInstance; / Store instance handle in our global variable hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) return FALSE; ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE;/ FUNCTION: WndProc(HWND, unsigned, WORD, LONG)/ PURPOSE: Processes messages for the main window./ WM_COMMAND- process the application menu/ WM_PAINT- Paint the main window/ WM_DESTROY- post a quit message and return/LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)int wmId, wmEvent;PAINTSTRUCT ps;HDC hdc;TCHAR szHelloMAX_LOADSTRING;LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);switch (message) case WM_CREATE:WSAStartup(0x0101,&ws);S=socket(AF_INET,SOCK_DGRAM,0);SetSockAddr(&lAddr,LPort,LIP);bind(S,(struct sockaddr*)&lAddr,sizeof(lAddr);WSAAsyncSelect(S,hWnd,WM_USER+1,FD_READ);hSend=CreateWindow(_T(button),_T(send),WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,850,380,100,40,hWnd,(HMENU)1,hInst,NULL);hText=CreateWindow(_T(edit),_T(),WS_VISIBLE|WS_CHILD|WS_BORDER|ES_AUTOHSCROLL|ES_AUTOVSCROLL,10,350,830,100,hWnd,(HMENU)2,hInst,NULL);break;case WM_USER+1:switch(LOWORD(lParam)case FD_READ:d=recvfrom(S,Msg,sizeof(Msg),0,(struct sockaddr*)&rAddr,&l);Msgd=0;char buf88;wsprintf(buf,Client:n%sn,Msg);strcat(messageDisplay,buf);RedrawWindow(hWnd,NULL,NULL,RDW_INVALIDATE|RDW_UPDATENOW|RDW_ERASE);break;break;case WM_COMMAND:wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); / Parse the menu selections:switch (wmId)case 1:TCHAR messageInputMAX_LOADSTRING;GetWindowText(hText,messageInput,MAX_LOADSTRING);strcat(messageDisplay,Server:n);strcat(messageDisplay,messageInput);strcat(messageDisplay,n);RedrawWindow(hWnd,NULL,NULL,RDW_INVALIDATE|RDW_UPDATENOW|RDW_ERASE);sendto(S,messageInput,strlen(messageInput),0,(struct sockaddr*)&rAddr,l);break;case IDM_ABOUT: DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About); break;case IDM_EXIT: DestroyWindow(hWnd); break;default: return DefWindowProc(hWnd, message, wParam, lParam);break;case WM_PAINT:hdc = BeginPaint(hWnd, &ps);/ TODO: Add any drawing code here.RECT rt;GetClientRect(hWnd, &rt);DrawText(hdc, messageDisplay, strlen(messageDisplay), &rt, DT_LEFT);EndPaint(hWnd, &ps);break;case WM_DESTROY:WSAAsyncSelect(S,hWnd,0,0);closesocket(S);WSACleanup();PostQuitMessage(0);break;default:return DefWindowProc(hWnd, message, wParam, lParam); return 0;/ Mesage handler for about box.LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)switch (message)case WM_INITDIALOG:return TRUE;case WM_COMMAND:if (LOWORD(wParam) = IDOK | LOWORD(wParam) = IDCANCEL) EndDialog(hDlg, LOWORD(wParam);return TRUE;break; return FALSE;Client端#include#include#pragma comment(lib,Ws2_32.lib)int main(int argc,char*argv)int sockClient;int port;struct sockaddr_in servAddr,myAddr;int n;char buf100;int alen;WSADATA wsaData;WSAStartup(0x0202,&wsaData);memset(char*)&servAddr,0,sizeof(servAddr);servAddr.sin_family=AF_INET;myAddr.sin_family=AF_INET;myAddr.sin_addr.s_addr=INADDR_ANY;myAddr.sin_port=0;if(argc2)servAddr.sin_addr.s_addr=inet_addr(argv1);if(servAddr.sin_addr.s_addr=INADDR_NONE)fprintf(stderr,bad ip address %sn,argv1);exit(1);port=atoi(argv2);if(port0)servAddr.sin_port=htons(u_short)port);elsefprintf(stderr,bad port number %sn,argv2);exit(1);elsefprintf(stderr,input the ip address and port number);exit(1);sockClient=socket(PF_INET,SOCK_DGRAM,0);if(sockClient0)fprintf(stderr,socket creation failedn);exit(1)