//socket简单的客户端代码
#define WIN32_LEAN_AND_MEAN
#define _CRT_SECURE_NO_WARNINGS
#define _WINSOCK_DEPRECATED_NO_WARNINGS

#include <stdio.h>
#include <string.h>
#include <Windows.h>

#include <WinSock2.h>
#pragma comment(lib, "ws2_32.lib")

int main(int argc, char *argv[]) {

    WSADATA wd;
    WSAStartup(MAKEWORD(2, 2), &wd);

    //创建客户端套接字
    SOCKET sktCli = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

    sockaddr_in addrSer = {0};
    addrSer.sin_family = AF_INET;//要接的服务器的IPV4协议
    addrSer.sin_port = htons(8080);//要连接的服务器的端口
    addrSer.sin_addr.s_addr = inet_addr("127.0.0.1");//要连接的服务器的IP
    //连接服务器
    connect(sktCli, (sockaddr *)&addrSer, sizeof(addrSer));

    char buf[1024];
    while (true) {
        printf(">>");
        scanf("%s", buf);
        send(sktCli, buf, strlen(buf) + 1, 0);//向服务器发送数据

        recv(sktCli, buf, sizeof(buf), 0);//接受服务器发送的数据
        printf("[server] %s\n", buf);
    }

    WSACleanup();
    return 0;
}

//socket简单的服务器代码
#define WIN32_LEAN_AND_MEAN
#define _CRT_SECURE_NO_WARNINGS
#define _WINSOCK_DEPRECATED_NO_WARNINGS

#include <stdio.h>
#include <string.h>
#include <Windows.h>

#include <WinSock2.h>
#pragma comment(lib, "ws2_32.lib")

int main(int argc, char *argv[]) {

    WSADATA wd;
    WSAStartup(MAKEWORD(2, 2), &wd);

    //创建服务器套接字
    SOCKET sktSer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

    sockaddr_in addrSer = { 0 };
    addrSer.sin_family = AF_INET;//服务器的IPV4协议
    addrSer.sin_port = htons(8080);//服务器的端口
    addrSer.sin_addr.s_addr = inet_addr("127.0.0.1");//服务器的IP

    //将套接字和端口、ip绑定
    int i = bind(sktSer, (sockaddr *)&addrSer, sizeof(addrSer));

    //开始监听套接字
    listen(sktSer, 5);

    //接受客户端套接字
    SOCKET sktCli = accept(sktSer, NULL, NULL);
    char buf[1024];
    while (true) {
        recv(sktCli, buf, sizeof(buf), 0);//接受客户端发送的数据
        printf("[client] %s\n", buf);

        send(sktCli, buf, strlen(buf) + 1, 0);//向客户端发送数据
    }

    WSACleanup();
    return 0;
}