#include <stdio.h> #include <Winsock2.h> #include <windows.h> #include "resource.h"
#pragma comment(lib, "ws2_32.lib") #define MAX_CONNECTED_NUM 1 //最大连接数,设置为1个 #define MAX_IPADDRESS 260 #define SOCKETMSG WM_USER+501 #define WINSOCK_VERION 0x0101 //MAKEWORD(2, 0)
char fname[MAX_PATH]; char bufIP[MAX_IPADDRESS]; char bufPORT[80]; char szDlgTitle[] = "聊天程序1.0版";
WSADATA ws; SOCKET skt=INVALID_SOCKET;//服务器(或者是客户端) //SOCKET clientSkt[MAX_CONNECTED_NUM];//客户端数组,暂定为5个 SOCKET connected_skt=INVALID_SOCKET;//服务器和客户端所连接上之后,所建立的SOCKET //连接建立之后,所有的数据通信,都是通过这个 Connected_skt进行的 //这个新建的SOCKET不可以再接受客户端连接,只有原来的那一个可以接受 struct sockaddr_in addr;//服务器的socket地址 struct sockaddr_in clientaddr;//客户端的
void LogFile(char *p) { FILE *fp=fopen(fname,"a+"); fprintf(fp,"%s\n",p); fclose(fp); } BOOL CreateServer(HWND hwnd) { if(WSAStartup(WINSOCK_VERION,&ws)) { MessageBox(hwnd,"Winsock初始化失败", szDlgTitle,MB_OK|MB_ICONSTOP); WSACleanup(); return FALSE; }//初始化
if((skt=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET) { MessageBox(hwnd,"创建Socket失败!", szDlgTitle,MB_OK); closesocket(skt); return FALSE; } GetDlgItemText(hwnd,IDC_IP,bufIP,MAX_IPADDRESS); GetDlgItemText(hwnd,IDC_PORT,bufPORT,79); addr.sin_family=AF_INET; addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY); //inet_addr("192.168.10.4");// addr.sin_port=htons(atoi(bufPORT));
if( bind(skt,(SOCKADDR*)&addr,sizeof(addr)) == SOCKET_ERROR ) { MessageBox(hwnd,"Socket绑定失败!", szDlgTitle,MB_OK); return FALSE; }
if( listen(skt,MAX_CONNECTED_NUM ) == SOCKET_ERROR ) { MessageBox(hwnd,"监听失败!", szDlgTitle,MB_OK); return FALSE; } char szIP[127],szPORT[127],buf[256]; GetDlgItemText(hwnd,IDC_IP,szIP,sizeof(szIP)); GetDlgItemText(hwnd,IDC_PORT,szPORT,sizeof(szPORT)); wsprintf(buf,">>>>>>服务器在地址:%s端口:%d监听",szIP,htons(atoi(bufPORT))); SetDlgItemText(hwnd,IDC_REVTXT,buf); //listen之后开始监听客户端的连接事件 if( WSAAsyncSelect(skt,hwnd,SOCKETMSG,FD_ACCEPT ) == SOCKET_ERROR ) { MessageBox(hwnd,"WSAAsyncSelect() 失败", szDlgTitle,MB_OK); return FALSE; }
return TRUE; }
BOOL CreateClient(HWND hwnd) { if(WSAStartup(WINSOCK_VERION,&ws)!=0) { MessageBox(hwnd,"Winsock初始化失败", szDlgTitle,MB_OK|MB_ICONSTOP); WSACleanup(); return FALSE; }//初始化
if((skt=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET) { MessageBox(hwnd,"创建Socket失败!", szDlgTitle,MB_OK); closesocket(skt); return FALSE; } GetDlgItemText(hwnd,IDC_IP,bufIP,MAX_IPADDRESS); GetDlgItemText(hwnd,IDC_PORT,bufPORT,79); addr.sin_family=AF_INET; addr.sin_addr.S_un.S_addr=inet_addr(bufIP); addr.sin_port=htons(atoi(bufPORT)); /* if( bind(skt,(SOCKADDR*)&addr,sizeof(addr)) == SOCKET_ERROR ) { MessageBox(hwnd,"Socket Bind 错误!", szDlgTitle,MB_OK); return FALSE; } */ int nConnect=connect(skt,(SOCKADDR*)&addr,sizeof(addr)); //请求连接 if(nConnect) MessageBox(hwnd,"连接失败!",NULL,MB_OK); else MessageBox(hwnd,"连接成功!",NULL,MB_OK);
if( WSAAsyncSelect(skt,hwnd,SOCKETMSG,FD_READ|FD_CLOSE|FD_CONNECT ) == SOCKET_ERROR ) { MessageBox(hwnd,"WSAAsyncSelect() 失败", szDlgTitle,MB_OK); return FALSE; } return TRUE; } BOOL HttpClient(void) { WSADATA ws; SOCKET s; struct sockaddr_in addr;
int iResult; long lResult; char strSubAddr[100], strBuffer[100];
lResult = WSAStartup(0x0101,&ws); s = socket(AF_INET,SOCK_STREAM,0); //建立的是一种TCP/IP 连接
addr.sin_family = AF_INET; addr.sin_port = htons(80); addr.sin_addr.s_addr = inet_addr("168.160.224.185"); // 计算机世界日报 iResult=connect(s,(struct sockaddr *)&addr, sizeof(addr)); if(SOCKET_ERROR == iResult) { // 连接失败 WSACleanup(); return FALSE; } else { // 连接成功 strcpy(strSubAddr, "GET /99/tips/ \r\n"); strcpy(fname, "C:\\index.htm"); iResult = send(s, strSubAddr,strlen(strSubAddr),0); // 下载文件 do { strset(strBuffer,' '); iResult = recv(s,strBuffer,sizeof(strBuffer),0); LogFile(strBuffer); } while( iResult !=0 ); }
WSACleanup(); return TRUE; }

|