/*
 * Copyright (C) 2000, 2001  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
 * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id: net.h,v 1.1 2004/03/15 20:35:25 as Exp $ */

#ifndef LWRES_NET_H
#define LWRES_NET_H 1

/*****
 ***** Module Info
 *****/

/*
 * Basic Networking Types
 *
 * This module is responsible for defining the following basic networking
 * types:
 *
 *		struct in_addr
 *		struct in6_addr
 *		struct sockaddr
 *		struct sockaddr_in
 *		struct sockaddr_in6
 *
 * It ensures that the AF_ and PF_ macros are defined.
 *
 * It declares ntoh[sl]() and hton[sl]().
 *
 * It declares lwres_net_aton(), lwres_net_ntop(), and lwres_net_pton().
 *
 * It ensures that INADDR_LOOPBACK, INADDR_ANY and IN6ADDR_ANY_INIT
 * are defined.
 */

/***
 *** Imports.
 ***/

#include <lwres/platform.h>	/* Required for LWRES_PLATFORM_*. */

#include <sys/types.h>
#include <sys/socket.h>		/* Contractual promise. */
#include <sys/time.h>
#include <sys/un.h>

#include <netinet/in.h>		/* Contractual promise. */
#include <arpa/inet.h>		/* Contractual promise. */
#ifdef LWRES_PLATFORM_NEEDNETINETIN6H
#include <netinet/in6.h>	/* Required on UnixWare. */
#endif
#ifdef LWRES_PLATFORM_NEEDNETINET6IN6H
#include <netinet6/in6.h>	/* Required on BSD/OS for in6_pktinfo. */
#endif

#include <lwres/lang.h>

#ifndef LWRES_PLATFORM_HAVEIPV6
#include <lwres/ipv6.h>		/* Contractual promise. */
#endif

#ifdef LWRES_PLATFORM_HAVEINADDR6
#define in6_addr in_addr6	/* Required for pre RFC2133 implementations. */
#endif

/*
 * Required for some pre RFC2133 implementations.
 * IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT were added in
 * draft-ietf-ipngwg-bsd-api-04.txt or draft-ietf-ipngwg-bsd-api-05.txt.  
 * If 's6_addr' is defined then assume that there is a union and three
 * levels otherwise assume two levels required.
 */
#ifndef IN6ADDR_ANY_INIT
#ifdef s6_addr
#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
#else
#define IN6ADDR_ANY_INIT { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } }
#endif
#endif

#ifndef IN6ADDR_LOOPBACK_INIT
#ifdef s6_addr
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
#else
#define IN6ADDR_LOOPBACK_INIT { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } }
#endif
#endif

#ifndef AF_INET6
#define AF_INET6 99
#endif

#ifndef PF_INET6
#define PF_INET6 AF_INET6
#endif

#ifndef INADDR_LOOPBACK
#define INADDR_LOOPBACK 0x7f000001UL
#endif

LWRES_LANG_BEGINDECLS

const char *
lwres_net_ntop(int af, const void *src, char *dst, size_t size);

int
lwres_net_pton(int af, const char *src, void *dst);

int
lwres_net_aton(const char *cp, struct in_addr *addr);

LWRES_LANG_ENDDECLS

#endif /* LWRES_NET_H */