网络协议-简易TCP-1.0

一·Sever

define WIN32_LEAN_AND_MEAN

include<windows.h>

include<winsock2.h>

pragma comment(lib,"ws2_32.lib")

include<stdio.h>

int main(){

WORD ver=MAKEWORD(2,2);

WSADATA data;

WSAStartup(ver,data);

SOCKET _sock = socke(AF_INET,SOCKET_STREAM,IPPROTO_TCP);

绑定端口

sockaddr_in _sin={};

_sin.sin_family=AF_INET;

_sin.sin_port=hoton(4567);

_sin.sin_addr.Sun.s_addr=inet_addr("IP");

if (SOCKET_ERROR == bind(_sock,(socketaddr *) &sin,sizeof(_sin)));{}

listen(_sock,5);

//接受等待client的连接

sockaddr_in clientAddr={};

int nAddrLen = sizeof(sockaddr_in);

SOCKET _cSocket = INVALID_SOCKET;

char msgBuf[]="Hello";

_cSocket = accept(_sock,(socketAddr *)&clientAddr,&nAddrLen);

printf(inet_ntoa(clientAddr,sin_addr));

发送data

send(_cSocket,msgBuf,strlen(msgBuf)+1,0);

closesocket(_sock);

WSACleanup();

}

二·Client

int main()

{

WORD ver=MAKEWORD(2,2);

WSADATA data;

WSAStartup(ver,&data);

//建立socket

SOCKET _sock = socket(AF_INET,SOCK_STREAM,0);

连接

sockaddr_in _sin={};

_sin.sin_family=AF_INET;

_sin.sin_port=htons(4567);

_sin.sin_addr.Sun.S_addr=inet_addr("IP");

connect(_sock,(sockaddr*)&sin,sizeof(sockaddr_in));

接受data

char recvBuf[256]={};

int nlen = recv(_sock,recvBuf,256,0);

printf(recvBuf);

关闭socket

closesocket(_sock);

WSACleanup();

getchar();

return 0;

}

}

简易TCP