external/bsd/ntp/dist/include/ntp_rfc2553.h

   1 /*      $NetBSD$        */
   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 /*
  74  * Ensure that we include the configuration file before we check
  75  * for IPV6
  76  */
  77 #include <config.h>
  78 #include <netdb.h>
  79 #include <isc/net.h>
  80
  81 #include "ntp_types.h"
  82
  83
  84  /*
  85  * If various macros are not defined we need to define them
  86  */
  87
  88 #ifndef AF_INET6
  89 # define AF_INET6       AF_MAX
  90 # define PF_INET6       AF_INET6
  91 #endif
  92
  93 #if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
  94
  95 # define        _SS_MAXSIZE     128
  96 # define        _SS_ALIGNSIZE   (sizeof(ntp_uint64_t))
  97 # ifdef ISC_PLATFORM_HAVESALEN
  98 #  define       _SS_PAD1SIZE    (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
  99 #  define       _SS_PAD2SIZE    (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
 100                                 _SS_PAD1SIZE - _SS_ALIGNSIZE)
 101 # else
 102 #  define       _SS_PAD1SIZE    (_SS_ALIGNSIZE - sizeof(short))
 103 #  define       _SS_PAD2SIZE    (_SS_MAXSIZE - sizeof(short) - \
 104                                 _SS_PAD1SIZE - _SS_ALIGNSIZE)
 105 # endif /* ISC_PLATFORM_HAVESALEN */
 106 #endif
 107
 108 #ifndef INET6_ADDRSTRLEN
 109 # define        INET6_ADDRSTRLEN        46      /* max len of IPv6 addr in ascii */
 110 #endif
 111
 112 /*
 113  * If we don't have the sockaddr_storage structure
 114  * we need to define it
 115  */
 116
 117 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
 118 struct sockaddr_storage {
 119 #ifdef ISC_PLATFORM_HAVESALEN
 120         ntp_u_int8_t    ss_len;         /* address length */
 121         ntp_u_int8_t    ss_family;      /* address family */
 122 #else
 123         short           ss_family;      /* address family */
 124 #endif
 125         char            __ss_pad1[_SS_PAD1SIZE];
 126         ntp_uint64_t    __ss_align;     /* force desired structure storage alignment */
 127         char            __ss_pad2[_SS_PAD2SIZE];
 128 };
 129 #endif
 130
 131 /*
 132  * Finally if the platform doesn't support IPv6 we need some
 133  * additional definitions
 134  */
 135
 136 /*
 137  * Flag values for getaddrinfo()
 138  */
 139 #ifndef AI_PASSIVE
 140 #define AI_PASSIVE      0x00000001 /* get address to use bind() */
 141 #define AI_CANONNAME    0x00000002 /* fill ai_canonname */
 142 #define AI_NUMERICHOST  0x00000004 /* prevent name resolution */
 143 /* valid flags for addrinfo */
 144 #define AI_MASK \
 145     (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
 146
 147 #define AI_ADDRCONFIG   0x00000400 /* only if any address is assigned */
 148 #endif  /* !AI_PASSIVE */
 149
 150 #ifndef AI_NUMERICHOST          /* such as AIX 4.3 */
 151 #define AI_NUMERICHOST  0
 152 #endif
 153
 154 #ifndef ISC_PLATFORM_HAVEIPV6
 155
 156 #ifdef SYS_WINNT
 157 # define in6_addr in_addr6
 158 #endif
 159
 160 struct addrinfo {
 161         int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
 162         int     ai_family;      /* PF_xxx */
 163         int     ai_socktype;    /* SOCK_xxx */
 164         int     ai_protocol;    /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
 165         size_t  ai_addrlen;     /* length of ai_addr */
 166         char    *ai_canonname;  /* canonical name for hostname */
 167         struct  sockaddr *ai_addr;      /* binary address */
 168         struct  addrinfo *ai_next;      /* next structure in linked list */
 169 };
 170
 171 /*
 172  * Error return codes from getaddrinfo()
 173  */
 174 #define EAI_ADDRFAMILY   1      /* address family for hostname not supported */
 175 #define EAI_AGAIN        2      /* temporary failure in name resolution */
 176 #define EAI_BADFLAGS     3      /* invalid value for ai_flags */
 177 #define EAI_FAIL         4      /* non-recoverable failure in name resolution */
 178 #define EAI_FAMILY       5      /* ai_family not supported */
 179 #define EAI_MEMORY       6      /* memory allocation failure */
 180 #define EAI_NODATA       7      /* no address associated with hostname */
 181 #define EAI_NONAME       8      /* hostname nor servname provided, or not known */
 182 #define EAI_SERVICE      9      /* servname not supported for ai_socktype */
 183 #define EAI_SOCKTYPE    10      /* ai_socktype not supported */
 184 #define EAI_SYSTEM      11      /* system error returned in errno */
 185 #define EAI_BADHINTS    12
 186 #define EAI_PROTOCOL    13
 187 #define EAI_MAX         14
 188
 189
 190 int     getaddrinfo (const char *, const char *,
 191                          const struct addrinfo *, struct addrinfo **);
 192 int     getnameinfo (const struct sockaddr *, u_int, char *,
 193                          size_t, char *, size_t, int);
 194 void    freeaddrinfo (struct addrinfo *);
 195 char    *gai_strerror (int);
 196
 197 /*
 198  * Constants for getnameinfo()
 199  */
 200 #ifndef NI_MAXHOST
 201 #define NI_MAXHOST      1025
 202 #define NI_MAXSERV      32
 203 #endif
 204
 205 /*
 206  * Flag values for getnameinfo()
 207  */
 208 #ifndef NI_NUMERICHOST
 209 #define NI_NOFQDN       0x00000001
 210 #define NI_NUMERICHOST  0x00000002
 211 #define NI_NAMEREQD     0x00000004
 212 #define NI_NUMERICSERV  0x00000008
 213 #define NI_DGRAM        0x00000010
 214 #define NI_WITHSCOPEID  0x00000020
 215 #endif
 216
 217 #endif /* !ISC_PLATFORM_HAVEIPV6 */
 218
 219 /*
 220  * Set up some macros to look for IPv6 and IPv6 multicast
 221  */
 222
 223 #if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)
 224 # define INCLUDE_IPV6_SUPPORT
 225 # if defined(IPV6_JOIN_GROUP) && defined(IPV6_LEAVE_GROUP)
 226 #  define INCLUDE_IPV6_MULTICAST_SUPPORT
 227 # endif /* IPV6 Multicast Support */
 228 #endif  /* IPv6 Support */
 229
 230 #endif /* !NTP_RFC2553_H */