// 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;
}