C++채 팅 프로그램 구현

#include<iostream>
#include<WinSock2.h>
#pragma comment(lib,"ws2_32.lib")
using namespace std;
void initialization();
int main(){
//      
 int send_len=0;
 int recv_len=0;
 int len=0;
//             
 char send_buf[100];
 char recv_buf[100];
//        ，       
 SOCKET s_server;
 SOCKET s_accept;
//          
 SOCKADDR_IN server_addr;
 SOCKADDR_IN accept_addr;
 initialization();
//       
 server_addr.sin_family=AF_INET;
 server_addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
 server_addr.sin_port=htons(1234);
//     
 s_server=socket(AF_INET,SOCK_STREAM,0);
 if(bind(s_server,(SOCKADDR *)&server_addr,sizeof(SOCKADDR))==SOCKET_ERROR){
  cout<<"       ！"<<endl;
  WSACleanup();
 }else{
 cout<<"       ！"<<endl;
 }
//          
 if(listen(s_server,SOMAXCONN)<0){
  cout<<"        ！"<<endl;
  WSACleanup();
 }else{
 cout<<"        ！"<<endl;
 }
 cout<<"         ，   ...."<<endl;
//      
 len=sizeof(SOCKADDR);
 s_accept=accept(s_server,(SOCKADDR *)&accept_addr,&len);
 if(s_accept==SOCKET_ERROR){
  cout<<"    ！"<<endl;
  WSACleanup();
  return 0;
 }
 cout<<"    ，      "<<endl;
//    
 while(1){
  recv_len=recv(s_accept,recv_buf,100,0);
  if(recv_len<0){
   cout<<"    ！"<<endl;
   break;
  }else{
  cout<<"     :"<<recv_buf<<endl;
  }
  cout<<"       :";
  cin>>send_buf;
  send_len=send(s_accept,send_buf,100,0);
  if(send_len<0){
   cout<<"    ！"<<endl;
   break;
  }
 }
 //     
 closesocket(s_server);
 closesocket(s_accept);
//  DLL  
 WSACleanup();
return 0;
}
void initialization(){
 //       
 WORD w_req=MAKEWORD(2,2);//   
 WSADATA wsadata;
 int err;
 err = WSAStartup(w_req,&wsadata);
 if(err!=0){
  cout<<"         ！"<<endl;
 }else{
 cout<<"         ！"<<endl;
 }
//     
 if(LOBYTE(wsadata.wVersion)!=2||HIBYTE(wsadata.wHighVersion)!=2){
  cout<<"         ！"<<endl;
  WSACleanup();
 }else{
 cout<<"        ！"<<endl;
 }
//         
 
}

#include<iostream>
#include<WinSock2.h>
#pragma comment(lib,"ws2_32.lib")
using namespace std;
void initialization();
int main(){
//      
 int send_len=0;
 int recv_len=0;
//             
 char send_buf[100];
 char recv_buf[100];
//        ，       
 SOCKET s_server;
//          
 SOCKADDR_IN server_addr;
 initialization();
//       
 server_addr.sin_family=AF_INET;
 server_addr.sin_addr.S_un.S_addr=inet_addr("192.168.1.1");
 server_addr.sin_port=htons(1234);
//     
 s_server=socket(AF_INET,SOCK_STREAM,0);
 if(connect(s_server,(SOCKADDR *)&server_addr,sizeof(SOCKADDR))==SOCKET_ERROR){
  cout<<"       ！"<<endl;
  WSACleanup();
 }else{
 cout<<"       ！"<<endl;
 }
 
//  ,    
 while(1){
  cout<<"       :";
  cin>>send_buf;
  send_len=send(s_server,send_buf,100,0);
  if(send_len<0){
   cout<<"    ！"<<endl;
   break;
  }
  recv_len=recv(s_server,recv_buf,100,0);
  if(recv_len<0){
   cout<<"    ！"<<endl;
   break;
  }else{
  cout<<"     :"<<recv_buf<<endl;
  }
  
 }
 //     
 closesocket(s_server);
//  DLL  
 WSACleanup();
return 0;
}
void initialization(){
 //       
 WORD w_req=MAKEWORD(2,2);//   
 WSADATA wsadata;
 int err;
 err = WSAStartup(w_req,&wsadata);
 if(err!=0){
  cout<<"         ！"<<endl;
 }else{
 cout<<"         ！"<<endl;
 }
//     
 if(LOBYTE(wsadata.wVersion)!=2||HIBYTE(wsadata.wHighVersion)!=2){
  cout<<"         ！"<<endl;
  WSACleanup();
 }else{
 cout<<"        ！"<<endl;
 }
//         
 
}