windows socket

//服务器

// winsvr.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <winsock2.h>
#include <conio.h>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")

void TCTServer()
{
    SOCKET socksvr = socket(AF_INET, SOCK_STREAM,
        IPPROTO_TCP);
    if(INVALID_SOCKET == socksvr) {
        return;
    }
    struct sockaddr_in svraddr = {};
    svraddr.sin_family = AF_INET;
    svraddr.sin_port = htons();
    svraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
    bind(socksvr, (struct sockaddr*)&svraddr,
        sizeof(svraddr));
    listen(socksvr, SOMAXCONN);
    struct sockaddr_in clientaddr = {};
    int nLen = sizeof(clientaddr);
    SOCKET sockclient =
        accept(socksvr, (struct sockaddr*)&clientaddr, &nLen);

    char szText[] = {};
    recv(sockclient, szText, , );
    printf("%s\n", szText);
    char szSend[] = "Hello Client";
    send(sockclient, szSend, sizeof(szSend), );
    getch();
    closesocket(sockclient);
    closesocket(socksvr);

}

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

    WSADATA wsa = {};
    WSAStartup(MAKEWORD(,), &wsa);

    TCTServer();

    return ;
}

//客户端

// wincli.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <winsock2.h>
#include <conio.h>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")

void TCPClient()
{
    SOCKET sockclient =
        socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(INVALID_SOCKET == sockclient) {
        return;
    }
    struct sockaddr_in addr = {};
    addr.sin_family = AF_INET;
    addr.sin_port = htons();
    addr.sin_addr.S_un.S_addr =
        inet_addr("127.0.0.1");
    //连接到服务器
    connect(sockclient, (struct sockaddr*)&addr, sizeof(addr));
    char szSend[] = "Hello Server";
    send(sockclient, szSend, sizeof(szSend), );
    char szText[] = {};
    recv(sockclient, szText, , );
    printf("%s\n", szText);
    getch();
    closesocket(sockclient);

}
int main(int argc, char* argv[])
{
    WSADATA wsa = {};
    WSAStartup(MAKEWORD(,), &wsa);
    TCPClient();
    return ;
}