C 簡單TCP通訊

其中有部分是處理資訊，臨時需要

#pragma once

標頭檔案/*
clinetnet.h：
用於表示乙個客戶的網路操作
*/#include #include#pragma comment(lib, "ws2_32.lib")
class cclientnet
;

客戶端的cpp

#include "clientnet.h"

#include #include using namespace std;
int cclientnet::connect( int port,const char* address )
//建立socket
m_sock = socket(af_inet,sock_stream,ipproto_tcp);
if (m_sock == invalid_socket)
//建立socket失敗
//目標伺服器資料
sockaddr_in sockaddrserver;
sockaddrserver.sin_family = af_inet;
sockaddrserver.sin_port = port;
sockaddrserver.sin_addr.s_addr = inet_addr(address);
//連線,sock與目標伺服器連線
ierrmsg = connect(m_sock,(sockaddr*)&sockaddrserver,sizeof(sockaddrserver));
if (ierrmsg < 0)
return rlt;
}socket cclientnet::getsocket()
int cclientnet::sendmsg(const char* msg,int len)
return rlt;
}void cclientnet::close()
void main()
//建立服務端socket
socket m_sock = socket(af_inet,sock_stream,ipproto_tcp);
if (m_sock == invalid_socket) 
//宣告資訊
sockaddr_in serveraddr;
serveraddr.sin_family = af_inet;
serveraddr.sin_port = port;
serveraddr.sin_addr.s_addr = inet_addr(address);
//繫結
ierrormsg = bind(m_sock,(sockaddr*)&serveraddr,sizeof(serveraddr));
if (ierrormsg < 0)
listen(m_sock,5);
sockaddr_in tcpaddr;
int len =sizeof(sockaddr);
socket newsocket;
char buf[1024];
int rval;
newsocket = accept(m_sock,(sockaddr*)&tcpaddr,&len);
if(newsocket!=invalid_socket) }
//關閉對應accept的socket
closesocket(newsocket);} 
int main(int argc, char **argv)
else
printf("servernet init failed with error : %d\n",irlt);
system("pause");
}

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