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ntp_rfc2553.h revision 1.2.6.2
      1 /*	$NetBSD: ntp_rfc2553.h,v 1.2.6.2 2015/01/07 12:13:17 msaitoh Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the project nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1982, 1986, 1990, 1993
     34  *	The Regents of the University of California.  All rights reserved.
     35  *
     36  * Redistribution and use in source and binary forms, with or without
     37  * modification, are permitted provided that the following conditions
     38  * are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above copyright
     42  *    notice, this list of conditions and the following disclaimer in the
     43  *    documentation and/or other materials provided with the distribution.
     44  * 3. All advertising materials mentioning features or use of this software
     45  *    must display the following acknowledgement:
     46  *	This product includes software developed by the University of
     47  *	California, Berkeley and its contributors.
     48  * 4. Neither the name of the University nor the names of its contributors
     49  *    may be used to endorse or promote products derived from this software
     50  *    without specific prior written permission.
     51  *
     52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     62  * SUCH DAMAGE.
     63  *
     64  *	@(#)in.h	8.3 (Berkeley) 1/3/94
     65  */
     66 
     67 /*
     68  * Compatability shims with the rfc2553 API to simplify ntp.
     69  */
     70 #ifndef NTP_RFC2553_H
     71 #define NTP_RFC2553_H
     72 
     73 #include <netdb.h>
     74 #include <isc/net.h>
     75 
     76 #include "ntp_types.h"
     77 #include "ntp_malloc.h"
     78 
     79 struct addrinfo *copy_addrinfo_impl(const struct addrinfo *
     80 #ifdef EREALLOC_CALLSITE	/* from ntp_malloc.h */
     81 							   ,
     82 				    const char *, int
     83 #endif
     84 					 );
     85 struct addrinfo *copy_addrinfo_list_impl(const struct addrinfo *
     86 #ifdef EREALLOC_CALLSITE	/* from ntp_malloc.h */
     87 								,
     88 					 const char *, int
     89 #endif
     90 					 );
     91 #ifdef EREALLOC_CALLSITE
     92 # define copy_addrinfo(l) \
     93 	 copy_addrinfo_impl((l), __FILE__, __LINE__)
     94 # define copy_addrinfo_list(l) \
     95 	 copy_addrinfo_list_impl((l), __FILE__, __LINE__)
     96 #else
     97 # define copy_addrinfo(l)	copy_addrinfo_impl(l)
     98 # define copy_addrinfo_list(l)	copy_addrinfo_list_impl(l)
     99 #endif
    100 
    101 /*
    102  * If various macros are not defined we need to define them
    103  */
    104 
    105 #ifndef AF_INET6
    106 # define AF_INET6	AF_MAX
    107 # define PF_INET6	AF_INET6
    108 #endif
    109 
    110 #if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
    111 
    112 # define	_SS_MAXSIZE	128
    113 # define	_SS_ALIGNSIZE	(sizeof(ntp_uint64_t))
    114 # ifdef ISC_PLATFORM_HAVESALEN
    115 #  define	_SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
    116 #  define	_SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
    117 				_SS_PAD1SIZE - _SS_ALIGNSIZE)
    118 # else
    119 #  define	_SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(short))
    120 #  define	_SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(short) - \
    121 				_SS_PAD1SIZE - _SS_ALIGNSIZE)
    122 # endif /* ISC_PLATFORM_HAVESALEN */
    123 #endif
    124 
    125 #ifndef INET6_ADDRSTRLEN
    126 # define	INET6_ADDRSTRLEN	46	/* max len of IPv6 addr in ascii */
    127 #endif
    128 
    129 /*
    130  * If we don't have the sockaddr_storage structure
    131  * we need to define it
    132  */
    133 
    134 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
    135 struct sockaddr_storage {
    136 #ifdef ISC_PLATFORM_HAVESALEN
    137 	ntp_u_int8_t	ss_len;		/* address length */
    138 	ntp_u_int8_t	ss_family;	/* address family */
    139 #else
    140 	short		ss_family;	/* address family */
    141 #endif
    142 	char		__ss_pad1[_SS_PAD1SIZE];
    143 	ntp_uint64_t	__ss_align;	/* force desired structure storage alignment */
    144 	char		__ss_pad2[_SS_PAD2SIZE];
    145 };
    146 #endif
    147 
    148 /*
    149  * Finally if the platform doesn't support IPv6 we need some
    150  * additional definitions
    151  */
    152 
    153 /*
    154  * Flag values for getaddrinfo()
    155  */
    156 #ifndef AI_PASSIVE
    157 #define	AI_PASSIVE	0x00000001 /* get address to use bind() */
    158 #define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
    159 #define	AI_NUMERICHOST	0x00000004 /* prevent name resolution */
    160 /* valid flags for addrinfo */
    161 #define AI_MASK \
    162     (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
    163 
    164 #define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
    165 #endif	/* !AI_PASSIVE */
    166 
    167 #ifndef AI_NUMERICHOST		/* such as AIX 4.3 */
    168 # define Z_AI_NUMERICHOST	0
    169 #else
    170 # define Z_AI_NUMERICHOST	AI_NUMERICHOST
    171 #endif
    172 
    173 #ifndef AI_NUMERICSERV		/* not in RFC 2553 */
    174 # define Z_AI_NUMERICSERV	0
    175 #else
    176 # define Z_AI_NUMERICSERV	AI_NUMERICSERV
    177 #endif
    178 
    179 #ifndef ISC_PLATFORM_HAVEIPV6
    180 
    181 #ifdef SYS_WINNT
    182 # define in6_addr in_addr6
    183 #endif
    184 
    185 struct addrinfo {
    186 	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
    187 	int	ai_family;	/* PF_xxx */
    188 	int	ai_socktype;	/* SOCK_xxx */
    189 	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
    190 	size_t	ai_addrlen;	/* length of ai_addr */
    191 	char	*ai_canonname;	/* canonical name for hostname */
    192 	struct	sockaddr *ai_addr;	/* binary address */
    193 	struct	addrinfo *ai_next;	/* next structure in linked list */
    194 };
    195 
    196 /*
    197  * Error return codes from getaddrinfo()
    198  */
    199 #define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
    200 #define	EAI_AGAIN	 2	/* temporary failure in name resolution */
    201 #define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
    202 #define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
    203 #define	EAI_FAMILY	 5	/* ai_family not supported */
    204 #define	EAI_MEMORY	 6	/* memory allocation failure */
    205 #define	EAI_NODATA	 7	/* no address associated with hostname */
    206 #define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
    207 #define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
    208 #define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
    209 #define	EAI_SYSTEM	11	/* system error returned in errno */
    210 #define	EAI_BADHINTS	12
    211 #define	EAI_PROTOCOL	13
    212 #define	EAI_MAX		14
    213 
    214 
    215 int	getaddrinfo (const char *, const char *,
    216 			 const struct addrinfo *, struct addrinfo **);
    217 int	getnameinfo (const struct sockaddr *, u_int, char *,
    218 			 size_t, char *, size_t, int);
    219 void	freeaddrinfo (struct addrinfo *);
    220 char	*gai_strerror (int);
    221 
    222 /*
    223  * Constants for getnameinfo()
    224  */
    225 #ifndef NI_MAXHOST
    226 #define	NI_MAXHOST	1025
    227 #define	NI_MAXSERV	32
    228 #endif
    229 
    230 /*
    231  * Flag values for getnameinfo()
    232  */
    233 #ifndef NI_NUMERICHOST
    234 #define	NI_NOFQDN	0x00000001
    235 #define	NI_NUMERICHOST	0x00000002
    236 #define	NI_NAMEREQD	0x00000004
    237 #define	NI_NUMERICSERV	0x00000008
    238 #define	NI_DGRAM	0x00000010
    239 #define NI_WITHSCOPEID	0x00000020
    240 #endif
    241 
    242 #endif /* !ISC_PLATFORM_HAVEIPV6 */
    243 
    244 /*
    245  * Set up some macros to look for IPv6 and IPv6 multicast
    246  */
    247 
    248 #if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)
    249 # define INCLUDE_IPV6_SUPPORT
    250 # if defined(IPV6_JOIN_GROUP) && defined(IPV6_LEAVE_GROUP)
    251 #  define INCLUDE_IPV6_MULTICAST_SUPPORT
    252 # endif	/* IPV6 Multicast Support */
    253 #endif  /* IPv6 Support */
    254 
    255 #endif /* !NTP_RFC2553_H */
    256