socket.h

/*
 *  Copyright (c) 2009 Braiden Kindt
 *
 *  Permission is hereby granted, free of charge, to any person
 *  obtaining a copy of this software and associated documentation
 *  files (the "Software"), to deal in the Software without
 *  restriction, including without limitation the rights to use,
 *  copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the
 *  Software is furnished to do so, subject to the following
 *  conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *  OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#pragma once

#include <avr/pgmspace.h>
#include <inttypes.h>

#define LISTEN_SOCK_MASK 0x10
#define E_SOCK_MASK 0x20

#define SOCK_ERR_UNAVAILIBLE 0x21
#define SOCK_ERR_TIMEOUT 0x22
#define SOCK_ERR_CLOSED 0x23

#define FD_SET(fdset, fd) fdset |= fd & LISTEN_SOCK_MASK ? fd << 4 : _BV(fd)
#define FD_CLEAR(fdset, fd) fdset &= ~(fd & LISTEN_SOCK_MASK ? fd << 4 : _BV(fd))
#define FD_ZERO(fdset) fdset = 0x00
#define FD_ISSET(fdset, fd) (fd & LISTEN_SOCK_MASK ? fdset & (fd << 4) : fdset & _BV(fd))

#define SOCK_ERR(fd) (fd & E_SOCK_MASK)

#ifndef SOCK_NO_SERVER
uint8_t sock_listen(uint16_t port, uint8_t nconcurrent);
uint8_t sock_accept(uint8_t listen_fd);
#endif

#ifndef SOCK_NO_CLIENT
uint8_t sock_connect(uint8_t *addr, uint16_t port);
#endif

uint8_t sock_write(uint8_t sockfd, char *data, uint8_t len);
uint8_t sock_write_P(uint8_t sockfd, PGM_P data, uint8_t len);
uint8_t sock_read(uint8_t sockfd, char *buffer, uint8_t len);
void sock_close(uint8_t sockfd);
uint8_t sock_select(uint8_t readsockfds, uint8_t timeout);
void sock_dump_netstat();