contrib/ldns/compat/fake-rfc2553.h

   1 /* From openssh 4.3p2 filename openbsd-compat/fake-rfc2553.h */
   2 /*
   3  * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
   4  * Copyright (C) 1999 WIDE Project.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the project nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 /*
  32  * Pseudo-implementation of RFC2553 name / address resolution functions
  33  *
  34  * But these functions are not implemented correctly. The minimum subset
  35  * is implemented for ssh use only. For example, this routine assumes
  36  * that ai_family is AF_INET. Don't use it for another purpose.
  37  */
  38
  39 #ifndef _FAKE_RFC2553_H
  40 #define _FAKE_RFC2553_H
  41
  42 #include <sys/types.h>
  43 #include <sys/socket.h>
  44 #include <netdb.h>
  45 #include <limits.h>
  46
  47 #ifdef __cplusplus
  48 extern "C" {
  49 #endif
  50
  51 /*
  52  * First, socket and INET6 related definitions
  53  */
  54 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
  55 #ifndef _SS_MAXSIZE
  56 # define        _SS_MAXSIZE     128     /* Implementation specific max size */
  57 # define       _SS_PADSIZE     (_SS_MAXSIZE - sizeof (struct sockaddr))
  58 struct sockaddr_storage {
  59         struct sockaddr ss_sa;
  60         char            __ss_pad2[_SS_PADSIZE];
  61 };
  62 # define ss_family ss_sa.sa_family
  63 #endif /* _SS_MAXSIZE */
  64 #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
  65
  66 #ifndef IN6_IS_ADDR_LOOPBACK
  67 # define IN6_IS_ADDR_LOOPBACK(a) \
  68         (((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
  69          ((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == htonl(1))
  70 #endif /* !IN6_IS_ADDR_LOOPBACK */
  71
  72 #ifndef HAVE_STRUCT_IN6_ADDR
  73 struct in6_addr {
  74         uint8_t s6_addr[16];
  75 };
  76 #endif /* !HAVE_STRUCT_IN6_ADDR */
  77
  78 #ifndef HAVE_STRUCT_SOCKADDR_IN6
  79 struct sockaddr_in6 {
  80         unsigned short  sin6_family;
  81         uint16_t        sin6_port;
  82         uint32_t        sin6_flowinfo;
  83         struct in6_addr sin6_addr;
  84 };
  85 #endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
  86
  87 #ifndef AF_INET6
  88 /* Define it to something that should never appear */
  89 #define AF_INET6 AF_MAX
  90 #endif
  91
  92 /*
  93  * Next, RFC2553 name / address resolution API
  94  */
  95
  96 #ifndef NI_NUMERICHOST
  97 # define NI_NUMERICHOST    (1)
  98 #endif
  99 #ifndef NI_NAMEREQD
 100 # define NI_NAMEREQD       (1<<1)
 101 #endif
 102 #ifndef NI_NUMERICSERV
 103 # define NI_NUMERICSERV    (1<<2)
 104 #endif
 105
 106 #ifndef AI_PASSIVE
 107 # define AI_PASSIVE             (1)
 108 #endif
 109 #ifndef AI_CANONNAME
 110 # define AI_CANONNAME           (1<<1)
 111 #endif
 112 #ifndef AI_NUMERICHOST
 113 # define AI_NUMERICHOST         (1<<2)
 114 #endif
 115
 116 #ifndef NI_MAXSERV
 117 # define NI_MAXSERV 32
 118 #endif /* !NI_MAXSERV */
 119 #ifndef NI_MAXHOST
 120 # define NI_MAXHOST 1025
 121 #endif /* !NI_MAXHOST */
 122
 123 #ifndef INT_MAX
 124 #define INT_MAX         0xffffffff
 125 #endif
 126
 127 #ifndef EAI_NODATA
 128 # define EAI_NODATA     (INT_MAX - 1)
 129 #endif
 130 #ifndef EAI_MEMORY
 131 # define EAI_MEMORY     (INT_MAX - 2)
 132 #endif
 133 #ifndef EAI_NONAME
 134 # define EAI_NONAME     (INT_MAX - 3)
 135 #endif
 136 #ifndef EAI_SYSTEM
 137 # define EAI_SYSTEM     (INT_MAX - 4)
 138 #endif
 139
 140 #ifndef HAVE_STRUCT_ADDRINFO
 141 struct addrinfo {
 142         int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME */
 143         int     ai_family;      /* PF_xxx */
 144         int     ai_socktype;    /* SOCK_xxx */
 145         int     ai_protocol;    /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
 146         size_t  ai_addrlen;     /* length of ai_addr */
 147         char    *ai_canonname;  /* canonical name for hostname */
 148         struct sockaddr *ai_addr;       /* binary address */
 149         struct addrinfo *ai_next;       /* next structure in linked list */
 150 };
 151 #endif /* !HAVE_STRUCT_ADDRINFO */
 152
 153 #ifndef HAVE_GETADDRINFO
 154 #ifdef getaddrinfo
 155 # undef getaddrinfo
 156 #endif
 157 #define getaddrinfo(a,b,c,d)    (ssh_getaddrinfo(a,b,c,d))
 158 int getaddrinfo(const char *, const char *,
 159     const struct addrinfo *, struct addrinfo **);
 160 #endif /* !HAVE_GETADDRINFO */
 161
 162 #if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO)
 163 #define gai_strerror(a)         (ssh_gai_strerror(a))
 164 char *gai_strerror(int);
 165 #endif /* !HAVE_GAI_STRERROR */
 166
 167 #ifndef HAVE_FREEADDRINFO
 168 #define freeaddrinfo(a)         (ssh_freeaddrinfo(a))
 169 void freeaddrinfo(struct addrinfo *);
 170 #endif /* !HAVE_FREEADDRINFO */
 171
 172 #ifndef HAVE_GETNAMEINFO
 173 #define getnameinfo(a,b,c,d,e,f,g) (ssh_getnameinfo(a,b,c,d,e,f,g))
 174 int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
 175     char *, size_t, int);
 176 #endif /* !HAVE_GETNAMEINFO */
 177
 178 #ifdef __cplusplus
 179 }
 180 #endif
 181
 182 #endif /* !_FAKE_RFC2553_H */
 183