/*
    netcompat.h -- network compatibility header
    Copyright (C) 2003 Marc Lehmann <gvpe@schmorp.de>
 
    This file is part of GVPE.

    GVPE is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with gvpe; if not, write to the Free Software
    Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef GVPE_NETCOMPAT_H
#define GVPE_NETCOMPAT_H

#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#include <net/if.h>
#ifdef HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IP_H
# include <netinet/ip.h>
#endif

#ifndef IPTOS_MINCOST
# define IPTOS_MINCOST      0x02
#endif
#ifndef IPTOS_RELIABILITY
# define IPTOS_RELIABILITY  0x04
#endif
#ifndef IPTOS_THROUGHPUT
# define IPTOS_THROUGHPUT   0x08
#endif
#ifndef IPTOS_LOWDELAY
# define IPTOS_LOWDELAY     0x10
#endif

#ifndef IPTOS_TOS_MASK
# define IPTOS_TOS_MASK (IPTOS_LOWDELAY | IPTOS_THROUGHPUT | IPTOS_RELIABILITY | IPTOS_MINCOST)
#endif

#if !defined(SOL_IP) && defined(IPPROTO_IP)
# define SOL_IP IPPROTO_IP
#endif

#ifndef IPPROTO_GRE
# define IPPROTO_GRE 47
#endif

#ifndef ICMP_ECHOREPLY
# define ICMP_ECHOREPLY 0
#endif

#ifndef HAVE_SOCKLEN_T
typedef int socklen_t;
#endif

#if ENABLE_ICMP
# include <netinet/ip_icmp.h>
struct icmp_header {
  u8          type;
  u8          code;
  u16         checksum;
  union {
        struct {
                u16   id;
                u16   sequence;
        } echo;
        u32   gateway;
        struct {
                u16   unused;
                u16   mtu;
        } frag;
  } un;
};
#endif

#endif