1 // soClient.cpp : Defines the entry point for the console application. 2 // 3 4 #include "stdafx.h" 5 #include <winsock2.h> 6 #pragma comment(lib,"ws2_32.lib") 7 8 int _tmain(int argc, _TCHAR* argv[]) 9 { 10 WSADATA wsadata; 11 WORD dVer=MAKEWORD(2,2); 12 WSAStartup(dVer,&wsadata); 13 14 SOCKET S=::socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); 15 if(S==INVALID_SOCKET) 16 { 17 return FALSE; 18 } 19 sockaddr_in serverAddr; 20 serverAddr.sin_addr.S_un.S_addr=inet_addr("127.0.0.1"); 21 serverAddr.sin_family=AF_INET; 22 serverAddr.sin_port=htons(4567); 23 if(::connect(S,(LPSOCKADDR)&serverAddr,sizeof(serverAddr))==SOCKET_ERROR) 24 { 25 if(WSAGetLastError()==10061) 26 { 27 printf("服务器未开启"); 28 } 29 return FALSE; 30 } 31 32 char buff[256]; 33 int irecv=::recv(S,buff,256,0); 34 if(irecv>0) 35 { 36 buff[irecv] = ' '; //返回数据不会结束所以人工添加 37 printf("返回数据为:%s",buff); 38 } 39 40 closesocket(S); 41 return 0; 42 }
服务器
1 // soServer.cpp : Defines the entry point for the console application. 2 // 3 4 #include "stdafx.h" 5 #include "winsock2.h" 6 #pragma comment(lib,"ws2_32.lib") 7 8 int _tmain(int argc, _TCHAR* argv[]) 9 { 10 WSADATA wsadata; 11 WORD dVer=MAKEWORD(2,2); 12 if(WSAStartup(dVer,&wsadata)!=0) 13 { 14 return FALSE; 15 } 16 17 sockaddr_in sin; 18 sin.sin_family=AF_INET; 19 sin.sin_addr.S_un.S_addr=INADDR_ANY; 20 sin.sin_port=htons(4567); 21 SOCKET S=::socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); 22 23 24 if(::bind(S,(LPSOCKADDR)&sin,sizeof(sin))==SOCKET_ERROR) 25 { 26 return FALSE; 27 } 28 29 if(::listen(S,2)==SOCKET_ERROR) 30 { 31 return FALSE; 32 } 33 34 sockaddr_in remoteAddr; 35 int nAddrLen = sizeof(remoteAddr); 36 SOCKET sClient; 37 char text[]="you have connected!welcome!"; 38 printf("等待接受连接。 "); 39 while(TRUE) 40 { 41 sClient=::accept(S,(LPSOCKADDR)&remoteAddr,&nAddrLen); 42 if(sClient==SOCKET_ERROR) 43 { 44 printf("获取失败"); 45 continue; 46 } 47 printf("接收到新连接:%s",inet_ntoa(remoteAddr.sin_addr)); 48 send(sClient,text,strlen(text),0); 49 closesocket(sClient); 50 } 51 closesocket(S); 52 return 0; 53 }