#include <string>
#include <cstring>
#include <vector>
#include <iostream>
#include <exception>
#include <cmath>
#include <stdexcept>

#include <sys/socket.h>
#include <netinet/in.h>
class cppsocket{
private:
	struct sockaddr_in serv_addr;
	int sock;
	std::vector<char> buffer;
public:
	const static std::size_t buffersize = 256;
	cppsocket(sockaddr_in _serv_addr, int _sock);
	cppsocket();
	cppsocket(const std::string& addr, unsigned int PORT);
	void close();
	int socket_id();
	void write(const std::string& message);
	void write(const std::vector<char>& message);
	std::vector<char> receive();
};

class server_socket{
private:
	int port_;
	int server_fd;
	struct sockaddr_in address;
	socklen_t addrlen;
public:
	int port();
	server_socket(int _port);
	cppsocket accept_connection();
	void close();
};