#ifndef SOCKETS_H_INCLUDED
#define SOCKETS_H_INCLUDED

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <netdb.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/select.h>
#include <openssl/ssl.h>
#include <openssl/err.h>

#define BACKLOG 10 // maximum length to which the queue of pending connections for sockfd may grow

// get sockaddr, IPv4 or IPv6:
void *get_in_addr(struct sockaddr *sa);

// Create socket to connect to real IRC server
int createserversocket(char *host, char *port);

// Create listening socket to listen for bouncer client connections
int createclientsocket(char *listenport);

void init_openssl();

void cleanup_openssl();

// Create OpenSSL context, type = 0 for IRC server-side (OpenSSL client)
// or type = 1 for bouncer client-side (OpenSSL server)
SSL_CTX *create_openssl_context(int type);

// Configure OpenSSL context, with certfile and keyfile provided if
// IRC server-side or set to NULL if bouncer client-side
void configure_openssl_context(SSL_CTX *ctx, char *certfile, char *keyfile);

// Read from a socket, whether or not using TLS
int sockread(SSL *fd, char *buf, int bufsize, int tls);

// Write to a socket, whether or not using TLS
int socksend(SSL *fd, char *buf, int bufsize, int tls);

#endif