netpong/includes/server.hpp

#include "easysock.hpp"
#include <iostream>
#include <cerrno>
#include "exception_consts.hpp"
/*
Server class - Defines a TCP/UDP server.
- The constructor takes in a **local** address and port, on which the server listens.
*/

class Server {
private:
	int ip_ver;
	char protocol;
	int port;
	int sock_fd;
	std::string address;

	void create_socket() {
		struct sockaddr* dest = (struct sockaddr *)malloc(sizeof(struct sockaddr));
		this->sock_fd = create_local(this->ip_ver, this->protocol, this->address.data(), this->port, dest);
		if (sock_fd < 0) {
			if (sock_fd * -1 == EADDRNOTAVAIL) {
				throw EXCEPT_ADDRNOTAVAIL;
			}
		}
	}

public:
	Server() {}

	Server(int ip_ver, char protocol, const char* address, int port) {
		/* Error checking */
		if (ip_ver != 4 && ip_ver != 6) {
			throw std::invalid_argument("Invalid IP address type");
		}
		if (port < 1024 || port > 65535) {
			throw std::invalid_argument("Invalid port");
		}
		if (protocol != 'T' && protocol != 'U') {
			throw std::invalid_argument("Invalid protocol");
		}

		this->ip_ver = ip_ver;
		this->protocol = protocol;
		this->port = port;
		this->address = std::string(address);

		/* Check to see if the given IP address matches the given ip_ver */
                if ((check_ip_ver(address) != 6 && ip_ver == 6) || (check_ip_ver(address) != 4 && ip_ver == 4)) {
			throw std::invalid_argument("Invalid IP address for given type.");
		}

		try {
			create_socket();
		} catch (int e) {
			throw;
		}
	}


	std::string recvAll() {
		std::string string = std::string();
		char* buffer = (char *)malloc(100);
		while (recv(this->getSockFD(), buffer, 100, 0) != 0) {
			string.append(std::string(buffer));
		}

		return string;
	}

	int getSockFD() {
		return sock_fd;
	}

};