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NetBSD/dist/ntp/include/ntp_rfc2553.h

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/* $NetBSD: ntp_rfc2553.h,v 1.3 2006/06/11 19:34:09 kardel Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* 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.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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.
*/
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)in.h 8.3 (Berkeley) 1/3/94
*/
/*
* Compatability shims with the rfc2553 API to simplify ntp.
*/
#ifndef _NTP_RFC2553_H_
#define _NTP_RFC2553_H_
/*
* Ensure that we include the configuration file before we check
* for IPV6
*/
#include <config.h>
#include <netdb.h>
#include "ntp_types.h"
/*
* Don't include any additional IPv6 definitions
* We are defining our own here.
*/
#define ISC_IPV6_H 1
/*
* If various macros are not defined we need to define them
*/
#ifndef AF_INET6
#define AF_INET6 AF_MAX
#define PF_INET6 AF_INET6
#endif
#if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
#define _SS_MAXSIZE 128
#define _SS_ALIGNSIZE (sizeof(ntp_uint64_t))
#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
_SS_PAD1SIZE - _SS_ALIGNSIZE)
#else
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short))
#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \
_SS_PAD1SIZE - _SS_ALIGNSIZE)
#endif /* HAVE_SA_LEN_IN_STRUCT_SOCKADDR */
#endif
/*
* If we don't have the sockaddr_storage structure
* we need to define it
*/
#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
struct sockaddr_storage {
#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
ntp_u_int8_t ss_len; /* address length */
ntp_u_int8_t ss_family; /* address family */
#else
short ss_family; /* address family */
#endif
char __ss_pad1[_SS_PAD1SIZE];
ntp_uint64_t __ss_align; /* force desired structure storage alignment */
char __ss_pad2[_SS_PAD2SIZE];
};
#endif
/*
* Finally if the platform doesn't support IPv6 we need some
* additional definitions
*/
/*
* Flag values for getaddrinfo()
*/
#ifndef AI_NUMERICHOST
#define AI_PASSIVE 0x00000001 /* get address to use bind() */
#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
/* valid flags for addrinfo */
#define AI_MASK \
(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
#endif
#ifndef ISC_PLATFORM_HAVEIPV6
/*
* Definition of some useful macros to handle IP6 addresses
*/
#ifdef ISC_PLATFORM_NEEDIN6ADDRANY
#ifdef SYS_WINNT
#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 \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#endif
#endif
/*
* IPv6 address
*/
#ifdef SYS_WINNT
#define in6_addr in_addr6
#else
struct in6_addr {
union {
ntp_u_int8_t __u6_addr8[16];
ntp_u_int16_t __u6_addr16[8];
ntp_u_int32_t __u6_addr32[4];
} __u6_addr; /* 128-bit IP6 address */
};
#define s6_addr __u6_addr.__u6_addr8
#endif
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRANY)
extern const struct in6_addr in6addr_any;
#endif
#define SIN6_LEN
#ifndef HAVE_SOCKADDR_IN6
struct sockaddr_in6 {
#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
ntp_u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
ntp_u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */
#else
short sin6_family; /* AF_INET6 (sa_family_t) */
#endif
ntp_u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/
ntp_u_int32_t sin6_flowinfo; /* IP6 flow information */
struct in6_addr sin6_addr; /* IP6 address */
ntp_u_int32_t sin6_scope_id; /* scope zone index */
};
#endif
/*
* Unspecified
*/
#ifndef IN6_IS_ADDR_UNSPECIFIED
#define IN6_IS_ADDR_UNSPECIFIED(a) \
((*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
#endif
/*
* Multicast
*/
#ifndef IN6_IS_ADDR_MULTICAST
#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
#endif
/*
* Unicast link / site local.
*/
#ifndef IN6_IS_ADDR_LINKLOCAL
#define IN6_IS_ADDR_LINKLOCAL(a) (\
(*((u_long *)((a)->s6_addr) ) == 0xfe) && \
((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0x80))
#endif
#ifndef IN6_IS_ADDR_SITELOCAL
#define IN6_IS_ADDR_SITELOCAL(a) (\
(*((u_long *)((a)->s6_addr) ) == 0xfe) && \
((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0xc0))
#endif
struct addrinfo {
int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
int ai_family; /* PF_xxx */
int ai_socktype; /* SOCK_xxx */
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
size_t ai_addrlen; /* length of ai_addr */
char *ai_canonname; /* canonical name for hostname */
struct sockaddr *ai_addr; /* binary address */
struct addrinfo *ai_next; /* next structure in linked list */
};
/*
* Error return codes from getaddrinfo()
*/
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
#define EAI_AGAIN 2 /* temporary failure in name resolution */
#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
#define EAI_FAMILY 5 /* ai_family not supported */
#define EAI_MEMORY 6 /* memory allocation failure */
#define EAI_NODATA 7 /* no address associated with hostname */
#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
#define EAI_SYSTEM 11 /* system error returned in errno */
#define EAI_BADHINTS 12
#define EAI_PROTOCOL 13
#define EAI_MAX 14
int getaddrinfo P((const char *, const char *,
const struct addrinfo *, struct addrinfo **));
int getnameinfo P((const struct sockaddr *, u_int, char *,
size_t, char *, size_t, int));
void freeaddrinfo P((struct addrinfo *));
char *gai_strerror P((int));
/*
* Constants for getnameinfo()
*/
#ifndef NI_MAXHOST
#define NI_MAXHOST 1025
#define NI_MAXSERV 32
#endif
/*
* Flag values for getnameinfo()
*/
#ifndef NI_NUMERICHOST
#define NI_NOFQDN 0x00000001
#define NI_NUMERICHOST 0x00000002
#define NI_NAMEREQD 0x00000004
#define NI_NUMERICSERV 0x00000008
#define NI_DGRAM 0x00000010
#define NI_WITHSCOPEID 0x00000020
#endif
#endif /* ISC_PLATFORM_HAVEIPV6 */
#endif /* !_NTP_RFC2553_H_ */
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