c+++socket+连接实例c+++socket+连接实例

#include <iostream> #include <Winsock2.h> using namespace std; void main() { WSADATA wsaData; SOCKET newconnection; SOCKET listeningSocket; SOCKADDR_IN serverAddr; SOCKADDR_IN clientAddr; int port = 5150; WSAStartup(MAKEWORD(2,2),&wsaData); listeningSocket = socket(AF_INET,SOCK_STREAM,0); serverAddr.sin_family =AF_INET; serverAddr.sin_port =htons(port); serverAddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY); bind(listeningSocket, (SOCKADDR *)&serverAddr, sizeof(serverAddr)); listen(listeningSocket,3); int len = sizeof(clientAddr); while(1) { char recvMessage[100]; char sendMessage[100]; char temp[200]; newconnection =accept(listeningSocket,(SOCKADDR *)&clientAddr, &len); // cout<<" client connect success. "; recv(newconnection,recvMessage,100,0); sprintf(temp,"%s say: %s\n",inet_ntoa(clientAddr.sin_addr),recvMessage); cout<<temp; if('q'==recvMessage[0]) { send(newconnection,"q",strlen("q")+1,0); cout<<"chat end!"; // closesocket(newconnection); break; } cout<<"please input data: \n" ; gets(sendMessage); send(newconnection,sendMessage,strlen(sendMessage)+1,0); closesocket(newconnection); } closesocket(newconnection); closesocket(listeningSocket); WSACleanup(); }