winsock的service和client端

阿泽1024

于 2021-11-19 09:08:48 发布

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分类专栏： winsock 文章标签：网络 c++ tcp/ip

本文链接：https://blog.youkuaiyun.com/wuxiaoze_/article/details/121414728

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service端

// Service.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
using namespace std;

#include <WinSock2.h>

int main()
{
    WSADATA wd;
    if (0 !=  WSAStartup(MAKEWORD(2, 2), &wd))
    {
        WSACleanup();
    }

    SOCKET sockListen = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

    SOCKADDR_IN addrListen;
    addrListen.sin_family = AF_INET;
	addrListen.sin_addr.s_addr = inet_addr("0.0.0.0");
	addrListen.sin_port = htons(2021);
	/*addrListen.sin_addr.s_addr = inet_addr("196.168.0.14");
	addrListen.sin_port = htons(1025);*/

    if (SOCKET_ERROR == bind(sockListen, (sockaddr *)&addrListen, sizeof(addrListen)))
    {
        int nErr = WSAGetLastError();

        closesocket(sockListen);
        WSACleanup();

        return -1;
    }

    if (SOCKET_ERROR == listen(sockListen, 5))
    {
		int nErr = WSAGetLastError();

		closesocket(sockListen);
		WSACleanup();
    }

    SOCKET sockClient = accept(sockListen, NULL, NULL);

    char szBuf[255] = "";
    int nRes = 0;

    while (1)
    {
		nRes = recv(sockClient, szBuf, 255, 0);

        if (SOCKET_ERROR == nRes)
        {
			int nErr = WSAGetLastError();

            break;
        }
		cout << "client:" << szBuf << endl;

        if (0 == strcmp(szBuf, "exit"))
        {
            break;
        }

		cin >> szBuf;
		nRes = send(sockClient, szBuf, strlen(szBuf) + 1, 0);

		if (SOCKET_ERROR == nRes)
		{
			int nErr = WSAGetLastError();

			break;
		}
    }

    closesocket(sockClient);
    WSACleanup();

    return 0;
}

client端

// Client.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
using namespace std;

#include <WinSock2.h>

int main()
{
	WSADATA wd;
	if (0 != WSAStartup(MAKEWORD(2, 2), &wd))
	{
		WSACleanup();
	}

	SOCKET sockLink = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

	SOCKADDR_IN addrListen;
	addrListen.sin_family = AF_INET;
	addrListen.sin_addr.s_addr = inet_addr("127.0.0.1");
	addrListen.sin_port = htons(2021);
	/*addrListen.sin_addr.s_addr = inet_addr("196.168.0.14");
	addrListen.sin_port = htons(1025);*/

	if (SOCKET_ERROR == connect(sockLink, (sockaddr*)&addrListen, sizeof(addrListen)))
	{
		int nErr = WSAGetLastError();

		if (nErr == WSAEACCES)
		{
			cout << "error" << endl;
		}
		
		closesocket(sockLink);
		WSACleanup();

		return -1;
	}

	char szBuf[255] = "";
	int nRes = 0;

	while (1)
	{
		cin >> szBuf;

		nRes = send(sockLink, szBuf, strlen(szBuf) + 1, 0);

		if (SOCKET_ERROR == nRes)
		{
			int nErr = WSAGetLastError();

			break;
		}

		nRes = recv(sockLink, szBuf, 255, 0);

		if (SOCKET_ERROR == nRes)
		{
			int nErr = WSAGetLastError();

			break;
		}

		cout << "service:" << szBuf << endl;
		
	}

	closesocket(sockLink);
	WSACleanup();

	return 0;
}