| 1 | /* |
| 2 | PostgreSQL Database Management System |
| 3 | (formerly known as Postgres, then as Postgres95) |
| 4 | |
| 5 | Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group |
| 6 | |
| 7 | Portions Copyright (c) 1994, The Regents of the University of California |
| 8 | |
| 9 | Permission to use, copy, modify, and distribute this software and its |
| 10 | documentation for any purpose, without fee, and without a written agreement |
| 11 | is hereby granted, provided that the above copyright notice and this paragraph |
| 12 | and the following two paragraphs appear in all copies. |
| 13 | |
| 14 | IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR |
| 15 | DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING |
| 16 | LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, |
| 17 | EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF |
| 18 | SUCH DAMAGE. |
| 19 | |
| 20 | THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
| 21 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| 22 | AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| 23 | ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS |
| 24 | TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| 25 | |
| 26 | */ |
| 27 | |
| 28 | /*------------------------------------------------------------------------- |
| 29 | * |
| 30 | * getaddrinfo.h |
| 31 | * Support getaddrinfo() on platforms that don't have it. |
| 32 | * |
| 33 | * Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO, |
| 34 | * whether or not the library routine getaddrinfo() can be found. This |
| 35 | * policy is needed because on some platforms a manually installed libbind.a |
| 36 | * may provide getaddrinfo(), yet the system headers may not provide the |
| 37 | * struct definitions needed to call it. To avoid conflict with the libbind |
| 38 | * definition in such cases, we rename our routines to pg_xxx() via macros. |
| 39 | * |
| 40 | * This code will also work on platforms where struct addrinfo is defined |
| 41 | * in the system headers but no getaddrinfo() can be located. |
| 42 | * |
| 43 | * Copyright (c) 2003-2007, PostgreSQL Global Development Group |
| 44 | * |
| 45 | *------------------------------------------------------------------------- |
| 46 | */ |
| 47 | #ifndef ADDRINFO_H |
| 48 | #define ADDRINFO_H |
| 49 | |
| 50 | |
| 51 | /* Various macros that ought to be in <netdb.h>, but might not be */ |
| 52 | |
| 53 | #ifndef EAI_FAIL |
| 54 | #define EAI_BADFLAGS (-1) |
| 55 | #define EAI_NONAME (-2) |
| 56 | #define EAI_AGAIN (-3) |
| 57 | #define EAI_FAIL (-4) |
| 58 | #define EAI_FAMILY (-6) |
| 59 | #define EAI_SOCKTYPE (-7) |
| 60 | #define EAI_SERVICE (-8) |
| 61 | #define EAI_MEMORY (-10) |
| 62 | #define EAI_SYSTEM (-11) |
| 63 | #endif /* !EAI_FAIL */ |
| 64 | |
| 65 | #ifndef AI_PASSIVE |
| 66 | #define AI_PASSIVE 0x0001 |
| 67 | #endif |
| 68 | |
| 69 | #ifndef AI_NUMERICHOST |
| 70 | /* |
| 71 | * some platforms don't support AI_NUMERICHOST; define as zero if using |
| 72 | * the system version of getaddrinfo... |
| 73 | */ |
| 74 | #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) |
| 75 | #define AI_NUMERICHOST 0 |
| 76 | #else |
| 77 | #define AI_NUMERICHOST 0x0004 |
| 78 | #endif |
| 79 | #endif |
| 80 | |
| 81 | #ifndef AI_CANONNAME |
| 82 | #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) |
| 83 | #define AI_CANONNAME 0 |
| 84 | #else |
| 85 | #define AI_CANONNAME 0x0008 |
| 86 | #endif |
| 87 | #endif |
| 88 | |
| 89 | #ifndef AI_NUMERICSERV |
| 90 | #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) |
| 91 | #define AI_NUMERICSERV 0 |
| 92 | #else |
| 93 | #define AI_NUMERICSERV 0x0010 |
| 94 | #endif |
| 95 | #endif |
| 96 | |
| 97 | #ifndef NI_NUMERICHOST |
| 98 | #define NI_NUMERICHOST 1 |
| 99 | #endif |
| 100 | |
| 101 | #ifndef NI_NUMERICSERV |
| 102 | #define NI_NUMERICSERV 2 |
| 103 | #endif |
| 104 | |
| 105 | #ifndef NI_NOFQDN |
| 106 | #define NI_NOFQDN 4 |
| 107 | #endif |
| 108 | |
| 109 | #ifndef NI_NAMEREQD |
| 110 | #define NI_NAMEREQD 8 |
| 111 | #endif |
| 112 | |
| 113 | #ifndef NI_DGRAM |
| 114 | #define NI_DGRAM 16 |
| 115 | #endif |
| 116 | |
| 117 | |
| 118 | #ifndef NI_MAXHOST |
| 119 | #define NI_MAXHOST 1025 |
| 120 | #endif |
| 121 | |
| 122 | #ifndef NI_MAXSERV |
| 123 | #define NI_MAXSERV 32 |
| 124 | #endif |
| 125 | |
| 126 | #ifndef HAVE_STRUCT_ADDRINFO |
| 127 | struct addrinfo |
| 128 | { |
| 129 | int ai_flags; |
| 130 | int ai_family; |
| 131 | int ai_socktype; |
| 132 | int ai_protocol; |
| 133 | size_t ai_addrlen; |
| 134 | struct sockaddr *ai_addr; |
| 135 | char *ai_canonname; |
| 136 | struct addrinfo *ai_next; |
| 137 | }; |
| 138 | #endif /* !HAVE_STRUCT_ADDRINFO */ |
| 139 | |
| 140 | #ifndef HAVE_STRUCT_SOCKADDR_STORAGE |
| 141 | struct sockaddr_storage { |
| 142 | unsigned short ss_family; |
| 143 | unsigned long ss_align; |
| 144 | char ss_padding[128 - sizeof (unsigned long)]; |
| 145 | }; |
| 146 | #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ |
| 147 | |
| 148 | #ifndef HAVE_GETADDRINFO |
| 149 | |
| 150 | /* Rename private copies per comments above */ |
| 151 | #ifdef getaddrinfo |
| 152 | #undef getaddrinfo |
| 153 | #endif |
| 154 | #define getaddrinfo pg_getaddrinfo |
| 155 | |
| 156 | #ifdef freeaddrinfo |
| 157 | #undef freeaddrinfo |
| 158 | #endif |
| 159 | #define freeaddrinfo pg_freeaddrinfo |
| 160 | |
| 161 | #ifdef gai_strerror |
| 162 | #undef gai_strerror |
| 163 | #endif |
| 164 | #define gai_strerror pg_gai_strerror |
| 165 | |
| 166 | #ifdef getnameinfo |
| 167 | #undef getnameinfo |
| 168 | #endif |
| 169 | #define getnameinfo pg_getnameinfo |
| 170 | |
| 171 | extern int getaddrinfo(const char *node, const char *service, |
| 172 | const struct addrinfo * hints, struct addrinfo ** res); |
| 173 | extern void freeaddrinfo(struct addrinfo * res); |
| 174 | extern const char *gai_strerror(int errcode); |
| 175 | extern int getnameinfo(const struct sockaddr * sa, socklen_t salen, |
| 176 | char *node, size_t nodelen, |
| 177 | char *service, size_t servicelen, int flags); |
| 178 | #endif /* !HAVE_GETADDRINFO */ |
| 179 | |
| 180 | #endif /* ADDRINFO_H */ |