76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
#include "stdafx.h"
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#include <stdio.h>
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#include <winsock2.h>
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#pragma comment(lib,"ws2_32.lib")
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int main(int argc, char* argv[])
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{
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//初始化WSA
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WORD sockVersion = MAKEWORD(2,2);
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WSADATA wsaData;
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if(WSAStartup(sockVersion, &wsaData)!=0)
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{
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return 0;
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}
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//创建套接字
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SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if(slisten == INVALID_SOCKET)
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{
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printf("socket error !");
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return 0;
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}
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//绑定IP和端口
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sockaddr_in sin;
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sin.sin_family = AF_INET;
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sin.sin_port = htons(8888);
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sin.sin_addr.S_un.S_addr = INADDR_ANY;
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if(bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)
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{
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printf("bind error !");
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}
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//开始监听
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if(listen(slisten, 5) == SOCKET_ERROR)
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{
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printf("listen error !");
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return 0;
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}
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//循环接收数据
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SOCKET sClient;
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sockaddr_in remoteAddr;
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int nAddrlen = sizeof(remoteAddr);
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char revData[255];
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while (true)
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{
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printf("等待连接...\n");
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sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);
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if(sClient == INVALID_SOCKET)
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{
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printf("accept error !");
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continue;
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}
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printf("接受到一个连接：%s \r\n", inet_ntoa(remoteAddr.sin_addr));
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//接收数据
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int ret = recv(sClient, revData, 255, 0);
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if(ret > 0)
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{
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revData[ret] = 0x00;
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printf(revData);
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}
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//发送数据
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char * sendData = "你好，TCP客户端\n";
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send(sClient, sendData, strlen(sendData), 0);
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closesocket(sClient);
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}
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closesocket(slisten);
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WSACleanup();
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return 0;
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}
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