src/network.h

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2016 Mike Becker. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef TCHESS_NETWORK_H
#define	TCHESS_NETWORK_H

#include <sys/socket.h>
#include <netdb.h>

#ifdef	__cplusplus
extern "C" {
#endif
    
#define NETCODE_ACCEPT 0x02
#define NETCODE_DECLINE 0x04
#define NETCODE_GAMEINFO 0x10
#define NETCODE_PGNDATA 0x11
#define NETCODE_MOVE 0x20
#define NETCODE_CHECK 0x22
#define NETCODE_CHECKMATE 0x24
#define NETCODE_STALEMATE 0x28
#define NETCODE_RESIGN 0x41
#define NETCODE_REMIS 0x42
#define NETCODE_TIMEOVER 0x44
#define NETCODE_CONNLOST 0x80

#define NETCODE_VERSION 16

typedef struct {
    int fd; /* -1, if we are the client */
    struct sockaddr address;
    socklen_t address_len;
} Client;

typedef struct {
    int fd;
    struct addrinfo* info; /* NULL, if we are the server */
    Client *client;
} Server;

int net_create(Server *server, char* port);
int net_find(Server *server, char* host, char* port);

int net_listen(Server *server);
int net_destroy(Server *server);
int net_connect(Server *server);

void net_send_code(int socket, uint8_t code);
void net_send_data(int socket, uint8_t code, void *data, size_t len);
uint8_t net_recieve_code(int socket);
void net_recieve_data(int socket, void *data, size_t len);

#ifdef	__cplusplus
}
#endif

#endif	/* TCHESS_NETWORK_H */