cn-lab1-server

// CN-lab1-server.cpp: определяет точку входа для консольного приложения.
//

#include "stdafx.h"
#include <winsock2.h>
#include <iostream>
#include <windows.h>
#include <string>

#pragma comment(lib, "ws2_32.lib")

using namespace std;

DWORD WINAPI client_processing(LPVOID client_socket) {
    SOCKET my_socket;
    my_socket = ((SOCKET *)client_socket)[0];
    char recv_buff[1024];
    recv(my_socket, &recv_buff[0], sizeof(recv_buff) - 1, 0);
    string s(recv_buff), is_pal = "1";
    for (int i = 0, l = s.length(); i <= l / 2; i++) {
        if (s[i] != s[l - 1 - i]) {
            is_pal[0] = '0';
            break;
        }
    }
    char *send_buff = &is_pal[0];
    send(my_socket, send_buff, sizeof(is_pal) - 1, 0);
    cout << "Connection closed" << endl;
    closesocket(my_socket);
    return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{
    WSAData wsadata;
    WSAStartup(0x0202, &wsadata);
    SOCKET my_socket;
    my_socket = socket(AF_INET, SOCK_STREAM, 0);
    sockaddr_in local_addr;
    local_addr.sin_family = AF_INET;
    local_addr.sin_addr.S_un.S_addr = 0;
    local_addr.sin_port = htons(5000);
    if (bind(my_socket, (sockaddr *)&local_addr, sizeof(local_addr))) {
        cout << "Error bind " << WSAGetLastError() << endl;
        closesocket(my_socket);
        WSACleanup();
        return 1;
    }
    cout << "Port 5000 binded" << endl;
    if (listen(my_socket, 16))
    {
        cout << "Error listen " << WSAGetLastError() << endl;
        closesocket(my_socket);
        WSACleanup();
        return  1;
    }
    cout << "Listening port 5000" << endl;
    SOCKET client_socket;
    sockaddr_in client_addr;
    int size = sizeof(client_addr);
    while (client_socket = accept(my_socket, (sockaddr *) &client_addr, &size)) {
        cout << "Client request accepted" << endl;
        DWORD threadID;
        CreateThread(NULL, NULL, client_processing, &client_socket, NULL, &threadID);
    }
    return 0;
}