Sample socket communication program

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#socket #struct #server #testing

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本文介绍了一种使用UDP协议实现客户端与服务器间Socket通信的方法。通过示例代码详细展示了如何设置服务器端口、发送与接收数据的过程。对于理解基本的网络编程原理及实现具有很好的参考价值。

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I am testing differnent Model of using socket communiton. In my opinion, there are many ways we can use. Now i will test different communication model . I will try my best to samplified it. One way is as follows:

Server:

::CSocket S,S2;
::SOCKADDR sr ;
S.Create(1088);
S.Bind(1088,L"192.168.0.40");
S.Listen(6);
S.Accept(S2,&sr);
char p[]="ASDF";
S2.Send(L"dddddd",14);

Client：

::CSocket s;
s.Create();
s.Connect(L"192.168.0.40",1088);
WCHAR buf[32] = { 0 };
s.Receive(buf,32);
me.SetWindowText(buf);

You can use socket achieving this aim :

Client:

// TServer.cpp : Defines the entry point for the console application.
// socket server

#include "stdafx.h"
#include <WINSOCK2.H>
#include <iostream>
#pragma comment(lib, "ws2_32.lib")
using namespace std;
int main(int argc, char* argv[])
{

WORD uVersionInfo;
WSADATA wdata;
uVersionInfo = MAKEWORD(1,1);
if(!WSAStartup(uVersionInfo,&wdata))
  cout<<"init socket lib success"<<endl;
if(LOBYTE(wdata.wVersion) != 1 || HIBYTE(wdata.wVersion) != 1)
  cout<<"version error"<<endl;
    SOCKET s = socket(AF_INET,SOCK_DGRAM, 0);
sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.S_un.S_addr = inet_addr("192.168.0.40");
sin.sin_port = htons(1088);
// bind(s, (struct sockaddr*)&sin , sizeof(sin));
//listen(s,5);
char buf[10] = "abc";
sockaddr sa;
int len = sizeof(sin);
//   int count = recvfrom(s, buf, 10, 0, &sa, &len);
int count = sendto(s, buf, 10, 0, (struct sockaddr*)&sin, len);
cout<<"sended num :"<<count<<endl;
closesocket(s);
WSACleanup();
return 0;
}
Server :

// TServer.cpp : Defines the entry point for the console application.
// socket server

#include "stdafx.h"
#include <WINSOCK2.H>
#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{

WORD uVersionInfo;
WSADATA wdata;
uVersionInfo = MAKEWORD(1,1);
if(!WSAStartup(uVersionInfo,&wdata))
  cout<<"init socket lib success"<<endl;
if(LOBYTE(wdata.wVersion) != 1 || HIBYTE(wdata.wVersion) != 1)
  cout<<"version error"<<endl;
    SOCKET s = socket(AF_INET,SOCK_DGRAM, 0);
sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_addr.S_un.S_addr = inet_addr("192.168.0.40");
sin.sin_port = htons(1088);
bind(s, (struct sockaddr*)&sin , sizeof(sin));
//listen(s,5);
char buf[10];
sockaddr sa;
int len = sizeof(sa);
    int count = recvfrom(s, buf, 10, 0, &sa, &len);
cout<<"receive num :"<<count<<"mes"<<buf<<endl;
closesocket(s);
WSACleanup();
return 0;
}