unbound/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 <config.h>
  43 #include <sys/types.h>
  44 #include <sys/socket.h>
  45 #include <netdb.h>
  46 #include <limits.h>
  47
  48 /*
  49  * First, socket and INET6 related definitions
  50  */
  51 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
  52 # define        _SS_MAXSIZE     128     /* Implementation specific max size */
  53 # define       _SS_PADSIZE     (_SS_MAXSIZE - sizeof (struct sockaddr))
  54 struct sockaddr_storage {
  55         struct sockaddr ss_sa;
  56         char            __ss_pad2[_SS_PADSIZE];
  57 };
  58 # define ss_family ss_sa.sa_family
  59 #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
  60
  61 #ifndef IN6_IS_ADDR_LOOPBACK
  62 # define IN6_IS_ADDR_LOOPBACK(a) \
  63         (((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
  64          ((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == htonl(1))
  65 #endif /* !IN6_IS_ADDR_LOOPBACK */
  66
  67 #ifndef HAVE_STRUCT_IN6_ADDR
  68 struct in6_addr {
  69         uint8_t s6_addr[16];
  70 };
  71 #endif /* !HAVE_STRUCT_IN6_ADDR */
  72
  73 #ifndef HAVE_STRUCT_SOCKADDR_IN6
  74 struct sockaddr_in6 {
  75         unsigned short  sin6_family;
  76         uint16_t        sin6_port;
  77         uint32_t        sin6_flowinfo;
  78         struct in6_addr sin6_addr;
  79 };
  80 #endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
  81
  82 #ifndef AF_INET6
  83 /* Define it to something that should never appear */
  84 #define AF_INET6 AF_MAX
  85 #endif
  86
  87 /*
  88  * Next, RFC2553 name / address resolution API
  89  */
  90
  91 #ifndef NI_NUMERICHOST
  92 # define NI_NUMERICHOST    (1)
  93 #endif
  94 #ifndef NI_NAMEREQD
  95 # define NI_NAMEREQD       (1<<1)
  96 #endif
  97 #ifndef NI_NUMERICSERV
  98 # define NI_NUMERICSERV    (1<<2)
  99 #endif
 100
 101 #ifndef AI_PASSIVE
 102 # define AI_PASSIVE             (1)
 103 #endif
 104 #ifndef AI_CANONNAME
 105 # define AI_CANONNAME           (1<<1)
 106 #endif
 107 #ifndef AI_NUMERICHOST
 108 # define AI_NUMERICHOST         (1<<2)
 109 #endif
 110
 111 #ifndef NI_MAXSERV
 112 # define NI_MAXSERV 32
 113 #endif /* !NI_MAXSERV */
 114 #ifndef NI_MAXHOST
 115 # define NI_MAXHOST 1025
 116 #endif /* !NI_MAXHOST */
 117
 118 #ifndef INT_MAX
 119 #define INT_MAX         0xffffffff
 120 #endif
 121
 122 #ifndef EAI_NODATA
 123 # define EAI_NODATA     (INT_MAX - 1)
 124 #endif
 125 #ifndef EAI_MEMORY
 126 # define EAI_MEMORY     (INT_MAX - 2)
 127 #endif
 128 #ifndef EAI_NONAME
 129 # define EAI_NONAME     (INT_MAX - 3)
 130 #endif
 131 #ifndef EAI_SYSTEM
 132 # define EAI_SYSTEM     (INT_MAX - 4)
 133 #endif
 134
 135 #ifndef HAVE_STRUCT_ADDRINFO
 136 struct addrinfo {
 137         int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME */
 138         int     ai_family;      /* PF_xxx */
 139         int     ai_socktype;    /* SOCK_xxx */
 140         int     ai_protocol;    /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
 141         size_t  ai_addrlen;     /* length of ai_addr */
 142         char    *ai_canonname;  /* canonical name for hostname */
 143         struct sockaddr *ai_addr;       /* binary address */
 144         struct addrinfo *ai_next;       /* next structure in linked list */
 145 };
 146 #endif /* !HAVE_STRUCT_ADDRINFO */
 147
 148 #ifndef HAVE_GETADDRINFO
 149 #ifdef getaddrinfo
 150 # undef getaddrinfo
 151 #endif
 152 #define getaddrinfo(a,b,c,d)    (getaddrinfo_unbound(a,b,c,d))
 153 int getaddrinfo(const char *, const char *,
 154     const struct addrinfo *, struct addrinfo **);
 155 #endif /* !HAVE_GETADDRINFO */
 156
 157 #if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO)
 158 #define gai_strerror(a)         (gai_strerror_unbound(a))
 159 char *gai_strerror(int);
 160 #endif /* !HAVE_GAI_STRERROR */
 161
 162 #ifndef HAVE_FREEADDRINFO
 163 #define freeaddrinfo(a)         (freeaddrinfo_unbound(a))
 164 void freeaddrinfo(struct addrinfo *);
 165 #endif /* !HAVE_FREEADDRINFO */
 166
 167 #ifndef HAVE_GETNAMEINFO
 168 #define getnameinfo(a,b,c,d,e,f,g) (getnameinfo_unbound(a,b,c,d,e,f,g))
 169 int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
 170     char *, size_t, int);
 171 #endif /* !HAVE_GETNAMEINFO */
 172
 173 #endif /* !_FAKE_RFC2553_H */
 174