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/*
Copyright (c) 2012-2014, Matthias Schiffer <mschiffer@universe-factory.net>
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.
*/
/**
\file src/compat.h
Portablity definitions
*/
#pragma once
#include <fastd_config.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#ifndef ETH_ALEN
/** The length of a MAC address */
#define ETH_ALEN 6
#endif
#ifndef ETH_HLEN
/** The length of the standard ethernet header */
#define ETH_HLEN 14
#endif
#ifndef HAVE_ETHHDR
/** An ethernet header */
struct ethhdr {
uint8_t h_dest[ETH_ALEN]; /**< The destination MAC address field */
uint8_t h_source[ETH_ALEN]; /**< The source MAC address field */
uint16_t h_proto; /**< The EtherType/length field */
} __attribute__((packed));
#endif
#if defined(USE_FREEBIND) && !defined(IP_FREEBIND)
/** Compatiblity define for systems supporting, but not defining IP_FREEBIND */
#define IP_FREEBIND 15
#endif
#ifndef SOCK_NONBLOCK
/** Defined if SOCK_NONBLOCK doesn't have an effect */
#define NO_HAVE_SOCK_NONBLOCK
/** Compatiblity define for systems not supporting SOCK_NONBLOCK */
#define SOCK_NONBLOCK 0
#endif
#ifndef HAVE_GET_CURRENT_DIR_NAME
/** Replacement function for *BSD systems not supporting get_current_dir_name() */
static inline char *get_current_dir_name(void) {
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
return getcwd(NULL, 0);
#else
#error unknown system, get_current_dir_name() not implemented
#endif
}
#endif
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