WIN网络编程-TCPServer

//////////////////////////////////////////////////
// TCPServer.cpp文件

#include "../common/InitSock.h"
#include <stdio.h>
CInitSock initSock;//初始化Winsock库

int main()
{
// 创建套节字
SOCKET sListen = ::socket(AF_INET, SOCK_STREAM,IPPROTO_TCP);
if(sListen == INVALID_SOCKET)
{
printf("Failed socket()\n");
return 0;
}

// 填充sockaddr_in结构
sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_port = htons(4567);
sin.sin_addr.S_un.S_addr = INADDR_ANY;

// 绑定这个套节字到一个本地地址
if(::bind(sListen,(LPSOCKADDR)&sin, sizeof(sin)) ==SOCKET_ERROR)
{
printf("Failed bind()\n");
return 0;
}

// 进入监听模式
if(::listen(sListen, 2) == SOCKET_ERROR)
{
printf("Failed listen()\n");
return 0;
}

// 循环接受客户的连接请求
sockaddr_in remoteAddr;
int nAddrLen = sizeof(remoteAddr);
SOCKET sClient;
char szText[] = " TCP Server Demo! \r\n";
while(TRUE)
{
// 接受一个新连接
sClient = ::accept(sListen,(SOCKADDR*)&remoteAddr,&nAddrLen);
if(sClient ==INVALID_SOCKET)
{
printf("Failedaccept()");
continue;
}

printf(" 接受到一个连接：%s \r\n",inet_ntoa(remoteAddr.sin_addr));

// 向客户端发送数据
::send(sClient, szText,strlen(szText), 0);
// 关闭同客户端的连接
::closesocket(sClient);
}

// 关闭监听套节字
::closesocket(sListen);

return 0;
}