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NetBSD/dist/ntp/include/isc/net.h
drochner d5e6f1b80b resolve conflicts 
(in this case, throw away all local modifications; I'll start patching
from scratch)
2003-12-04 16:23:34 +00:00

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/* $NetBSD: net.h,v 1.2 2003/12/04 16:23:36 drochner Exp $ */
/*
* Copyright (C) 1999-2001 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 1.34 2002/04/03 06:38:38 marka Exp */
#ifndef ISC_NET_H
#define ISC_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 in6_pktinfo
* struct sockaddr
* struct sockaddr_in
* struct sockaddr_in6
* in_port_t
*
* It ensures that the AF_ and PF_ macros are defined.
*
* It declares ntoh[sl]() and hton[sl]().
*
* It declares inet_aton(), inet_ntop(), and inet_pton().
*
* It ensures that INADDR_LOOPBACK, INADDR_ANY, IN6ADDR_ANY_INIT,
* in6addr_any, and in6addr_loopback are available.
*
* It ensures that IN_MULTICAST() is available to check for multicast
* addresses.
*
* MP:
* No impact.
*
* Reliability:
* No anticipated impact.
*
* Resources:
* N/A.
*
* Security:
* No anticipated impact.
*
* Standards:
* BSD Socket API
* RFC 2553
*/
/***
*** Imports.
***/
#include <isc/platform.h>
#include <sys/types.h>
#include <sys/socket.h> /* Contractual promise. */
#include <netinet/in.h> /* Contractual promise. */
#include <arpa/inet.h> /* Contractual promise. */
#ifdef ISC_PLATFORM_NEEDNETINETIN6H
#include <netinet/in6.h> /* Required on UnixWare. */
#endif
#ifdef ISC_PLATFORM_NEEDNETINET6IN6H
#include <netinet6/in6.h> /* Required on BSD/OS for in6_pktinfo. */
#endif
#ifndef ISC_PLATFORM_HAVEIPV6
#include <isc/ipv6.h> /* Contractual promise. */
#endif
#include <isc/lang.h>
#include <isc/types.h>
#ifdef ISC_PLATFORM_HAVEINADDR6
#define in6_addr in_addr6 /* Required for pre RFC2133 implementations. */
#endif
#ifdef ISC_PLATFORM_HAVEIPV6
/*
* 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 IN6_IS_ADDR_V4MAPPED
#define IN6_IS_ADDR_V4MAPPED(x) \
(memcmp((x)->s6_addr, in6addr_any.s6_addr, 10) == 0 && \
(x)->s6_addr[10] == 0xff && (x)->s6_addr[11] == 0xff)
#endif
#ifndef IN6_IS_ADDR_V4COMPAT
#define IN6_IS_ADDR_V4COMPAT(x) \
(memcmp((x)->s6_addr, in6addr_any.s6_addr, 12) == 0 && \
((x)->s6_addr[12] != 0 || (x)->s6_addr[13] != 0 || \
(x)->s6_addr[14] != 0 || \
((x)->s6_addr[15] != 0 && (x)->s6_addr[15] != 1)))
#endif
#ifndef IN6_IS_ADDR_MULTICAST
#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
#endif
#ifndef IN6_IS_ADDR_LINKLOCAL
#define IN6_IS_ADDR_LINKLOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
#endif
#ifndef IN6_IS_ADDR_SITELOCAL
#define IN6_IS_ADDR_SITELOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
#endif
#ifndef IN6_IS_ADDR_LOOPBACK
#define IN6_IS_ADDR_LOOPBACK(x) \
(memcmp((x)->s6_addr, in6addr_loopback.s6_addr, 16) == 0)
#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
#if 0
#ifndef ISC_PLATFORM_HAVEIN6PKTINFO
struct in6_pktinfo {
struct in6_addr ipi6_addr; /* src/dst IPv6 address */
unsigned int ipi6_ifindex; /* send/recv interface index */
};
#endif
#endif
/*
* Cope with a missing in6addr_any and in6addr_loopback.
*/
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRANY)
extern const struct in6_addr isc_net_in6addrany;
#define in6addr_any isc_net_in6addrany
#endif
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRLOOPBACK)
extern const struct in6_addr isc_net_in6addrloop;
#define in6addr_loopback isc_net_in6addrloop
#endif
/*
* Fix UnixWare 7.1.1's broken IN6_IS_ADDR_* definitions.
*/
#ifdef ISC_PLATFORM_FIXIN6ISADDR
#undef IN6_IS_ADDR_GEOGRAPHIC
#define IN6_IS_ADDR_GEOGRAPHIC(a) (((a)->S6_un.S6_l[0] & 0xE0) == 0x80)
#undef IN6_IS_ADDR_IPX
#define IN6_IS_ADDR_IPX(a) (((a)->S6_un.S6_l[0] & 0xFE) == 0x04)
#undef IN6_IS_ADDR_LINKLOCAL
#define IN6_IS_ADDR_LINKLOCAL(a) (((a)->S6_un.S6_l[0] & 0xC0FF) == 0x80FE)
#undef IN6_IS_ADDR_MULTICAST
#define IN6_IS_ADDR_MULTICAST(a) (((a)->S6_un.S6_l[0] & 0xFF) == 0xFF)
#undef IN6_IS_ADDR_NSAP
#define IN6_IS_ADDR_NSAP(a) (((a)->S6_un.S6_l[0] & 0xFE) == 0x02)
#undef IN6_IS_ADDR_PROVIDER
#define IN6_IS_ADDR_PROVIDER(a) (((a)->S6_un.S6_l[0] & 0xE0) == 0x40)
#undef IN6_IS_ADDR_SITELOCAL
#define IN6_IS_ADDR_SITELOCAL(a) (((a)->S6_un.S6_l[0] & 0xC0FF) == 0xC0FE)
#endif /* ISC_PLATFORM_FIXIN6ISADDR */
/*
* Ensure type in_port_t is defined.
*/
#ifdef ISC_PLATFORM_NEEDPORTT
typedef isc_uint16_t in_port_t;
#endif
/*
* If this system does not have MSG_TRUNC (as returned from recvmsg())
* ISC_PLATFORM_RECVOVERFLOW will be defined. This will enable the MSG_TRUNC
* faking code in socket.c.
*/
#ifndef MSG_TRUNC
#define ISC_PLATFORM_RECVOVERFLOW
#endif
#define ISC__IPADDR(x) ((isc_uint32_t)htonl((isc_uint32_t)(x)))
#define ISC_IPADDR_ISMULTICAST(i) \
(((isc_uint32_t)(i) & ISC__IPADDR(0xf0000000)) \
== ISC__IPADDR(0xe0000000))
/***
*** Functions.
***/
ISC_LANG_BEGINDECLS
isc_result_t
isc_net_probeipv4(void);
/*
* Check if the system's kernel supports IPv4.
*
* Returns:
*
* ISC_R_SUCCESS IPv4 is supported.
* ISC_R_NOTFOUND IPv4 is not supported.
* ISC_R_UNEXPECTED
*/
isc_result_t
isc_net_probeipv6(void);
/*
* Check if the system's kernel supports IPv6.
*
* Returns:
*
* ISC_R_SUCCESS IPv6 is supported.
* ISC_R_NOTFOUND IPv6 is not supported.
* ISC_R_UNEXPECTED
*/
const char *
isc_net_ntop(int af, const void *src, char *dst, size_t size);
#ifdef ISC_PLATFORM_NEEDNTOP
#define inet_ntop isc_net_ntop
#endif
int
isc_net_pton(int af, const char *src, void *dst);
#ifdef ISC_PLATFORM_NEEDPTON
#undef inet_pton
#define inet_pton isc_net_pton
#endif
int
isc_net_aton(const char *cp, struct in_addr *addr);
#ifdef ISC_PLATFORM_NEEDATON
#define inet_aton isc_net_aton
#endif
ISC_LANG_ENDDECLS
#endif /* ISC_NET_H */
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