Socket programming uses C + + to implement server-side and client-side

I created two projects on Visual Stdio 2013, compiled the following two main files separately, and then tested the

Service side: Server.cpp

#include <winsock2. H>#include <iostream>using STD::cout;using STD::Cin;using STD:: Endl;#include <string>using STD::string;#pragma comment (lib, "Ws2_32.lib")voidMain () {//Create socketsWORD myversionrequest; Wsadata Wsadata;//contains Winstock version information supported by the systemMyversionrequest = Makeword (1,1);//Initialize version 1.1    intErr Err = WSAStartup (myversionrequest, &wsadata);if(!err) {printf("Open socket \ n"); }Else{//Further binding sockets        printf("The nested word is not open!");return; } Socket Sersocket = socket (af_inet, Sock_stream,0);//Create a recognizable socket    //parameters that need to be boundSockaddr_in addr;    addr.sin_family = af_inet; Addr.sin_addr. S_un. S_ADDR = htonl (Inaddr_any);//IP AddressAddr.sin_port = htons ( the);//Bound Port    //Bind the socket to the specified network addressBind (Sersocket, (sockaddr*) &addr,sizeof(SOCKADDR));//Bind completeListen (Sersocket,Ten);//The second parameter represents the maximum number of connections that can be receivedSockaddr_in Clientsocket;intLen =sizeof(SOCKADDR); SOCKET Serconn;//Waiting for the client to connectSerconn = Accept (Sersocket, (sockaddr*) &clientsocket, &len);cout<<"Client"<< Inet_ntoa (CLIENTSOCKET.SIN_ADDR) <<"Connected"<< Endl;//client is connected     while(1) {Charsendbuf[ -];sprintf(SendBuf,"Server:welcome%s to server.", Inet_ntoa (CLIENTSOCKET.SIN_ADDR));//Find the corresponding IP and print the line to thereSend (Serconn, SendBuf,strlen(SENDBUF) +1,0);Charreceivebuf[ -];//Receive information from clientsRecv (Serconn, ReceiveBuf,strlen(RECEIVEBUF) +1,0);Char* quit ="Quit";//If the client has a quit signal, the server shuts down and the client shuts down        if(!strcmp(ReceiveBuf, quit)) { Break; }printf("%s\n", RECEIVEBUF); } closesocket (Serconn);//OffWSACleanup ();//release of resource operations}

Client: Client.cpp

#include <winsock2. H>#include <iostream>using STD::cout;using STD::Cin;using STD:: Endl;#include <string>using STD::string;#include <conio.h>#pragma comment (lib, "Ws2_32.lib")voidMain () {intErr    WORD versionrequired; Wsadata Wsadata;//contains Winstock version information supported by the systemversionrequired = Makeword (1,1);//Initialize version 1.1    //Register Winstock, return statusErr = WSAStartup (versionrequired, &wsadata);//Protocol library version Information    if(!err)//Return result of 0 indicates initialization failed{cout<< LPSTR ("Client socket has been opened!\n"); }Else{//Call WSAGetLastError () to view error messages        cout<< ("Client socket Open failed:") << WSAGetLastError () << Endl;return;//End}/ * Create socket: Streaming socket: sock_stream, IPPROTO_TCP datagram socket: SOCK_DGRAM, IPPROTO_UDP */Socket clientsocket = socket (af_inet, sock_stream, ipproto_tcp);//Create a streaming socketSockaddr_in clientsock_in;//Winsock address structure specifically for the Internet communications domainClientsock_in.sin_addr. S_un. S_ADDR = inet_addr ("127.0.0.1");//Specify the host IP address of the socket via the INET_ADDR structureclientsock_in.sin_family = af_inet;//Designated protocol family: Af_inetClientsock_in.sin_port = htons ( the);//Specify the port number of the transport layer that will be assigned to the socket: 6000    intFail = Connect (Clientsocket, (sockaddr*) &clientsock_in,sizeof(SOCKADDR));//Start connection    if(fail) {cout<<"Connection to server failed!" Program will exit ... "<< Endl; _getch ();return; }stringS while(Cin>> s) {Charreceivebuf[ -];//Receive DataRecv (Clientsocket, ReceiveBuf,101,0);cout<< ReceiveBuf <<endl;//Send dataSend (Clientsocket, S.c_str (), s.length () +1,0);if(s = ="Quit"){ Break; }} closesocket (Clientsocket);//Close socket    if(WSACleanup () = = Socket_error) {cout<<"Socket shutdown failed:"<< WSAGetLastError () << Endl; }Else{cout<<"The socket was successfully closed."<< Endl; } _getch ();return;}//INET_ADDR Structure:/*struct in_addr {union{struct{U_char s_b1, S_b2, S_b3, S_B4;} S_un_b; struct{u_short s_w1, S_W2;} S_un_w; U_long s_addr;}} */

Note:

• Unable to support Chinese data transfer (garbled);
  
• When the client enters data with a space, it is treated as multiple input data (because it is the data read with CIN)
  

Socket programming uses C + + to implement server-side and client-side