1 /* 2 * Copyright (c) 2001, 02 Motoyuki Kasahara 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. Neither the name of the project nor the names of its contributors 13 * may be used to endorse or promote products derived from this software 14 * without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _D_GETADDRINFO_H 30 #define _D_GETADDRINFO_H 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif /* __cplusplus */ 35 36 #ifdef __MINGW32__ 37 # undef SIZE_MAX 38 #endif // __MINGW32__ 39 40 #ifdef HAVE_CONFIG_H 41 # include "config.h" 42 #endif // HAVE_CONFIG_H 43 44 #ifdef __MINGW32__ 45 # ifndef _WIN32_WINNT 46 # define _WIN32_WINNT 0x501 47 # endif // _WIN32_WINNT 48 # include <winsock2.h> 49 # undef ERROR 50 # include <ws2tcpip.h> 51 #endif // __MINGW32__ 52 53 #ifdef HAVE_SYS_SOCKET_H 54 # include <sys/socket.h> 55 #endif // HAVE_SYS_SOCKET_H 56 #ifdef HAVE_NETDB_H 57 # include <netdb.h> 58 #endif // HAVE_NETDB_H 59 60 #include <sys/types.h> 61 62 /********************************************************************/ 63 /* 64 * Undefine all the macros. 65 * <netdb.h> might defines some of them. 66 */ 67 #ifdef EAI_ADDRFAMILY 68 # undef EAI_ADDRFAMILY 69 #endif 70 #ifdef EAI_AGAIN 71 # undef EAI_AGAIN 72 #endif 73 #ifdef EAI_BADFLAGS 74 # undef EAI_BADFLAGS 75 #endif 76 #ifdef EAI_FAIL 77 # undef EAI_FAIL 78 #endif 79 #ifdef EAI_FAMILY 80 # undef EAI_FAMILY 81 #endif 82 #ifdef EAI_MEMORY 83 # undef EAI_MEMORY 84 #endif 85 #ifdef EAI_NONAME 86 # undef EAI_NONAME 87 #endif 88 #ifdef EAI_OVERFLOW 89 # undef EAI_OVERFLOW 90 #endif 91 #ifdef EAI_SERVICE 92 # undef EAI_SERVICE 93 #endif 94 #ifdef EAI_SOCKTYPE 95 # undef EAI_SOCKTYPE 96 #endif 97 #ifdef EAI_SYSTEM 98 # undef EAI_SYSTEM 99 #endif 100 101 #ifdef AI_PASSIVE 102 # undef AI_PASSIVE 103 #endif 104 #ifdef AI_CANONNAME 105 # undef AI_CANONNAME 106 #endif 107 #ifdef AI_NUMERICHOST 108 # undef AI_NUMERICHOST 109 #endif 110 #ifdef AI_NUMERICSERV 111 # undef AI_NUMERICSERV 112 #endif 113 #ifdef AI_V4MAPPED 114 # undef AI_V4MAPPED 115 #endif 116 #ifdef AI_ALL 117 # undef AI_ALL 118 #endif 119 #ifdef AI_ADDRCONFIG 120 # undef AI_ADDRCONFIG 121 #endif 122 #ifdef AI_DEFAULT 123 # undef AI_DEFAULT 124 #endif 125 126 #ifdef NI_NOFQDN 127 # undef NI_NOFQDN 128 #endif 129 #ifdef NI_NUMERICHOST 130 # undef NI_NUMERICHOST 131 #endif 132 #ifdef NI_NAMEREQD 133 # undef NI_NAMEREQD 134 #endif 135 #ifdef NI_NUMERICSERV 136 # undef NI_NUMERICSERV 137 #endif 138 #ifdef NI_NUMERICSCOPE 139 # undef NI_NUMERICSCOPE 140 #endif 141 142 #ifdef NI_DGRAM 143 # undef NI_DGRAM 144 #endif 145 #ifdef NI_MAXHOST 146 # undef NI_MAXHOST 147 #endif 148 #ifdef NI_MAXSERV 149 # undef NI_MAXSERV 150 #endif 151 152 /* 153 * Fake struct and function names. 154 * <netdb.h> might declares all or some of them. 155 */ 156 #if defined(HAVE_GETADDRINFO) || defined(HAVE_GETNAMEINFO) 157 # define addrinfo my_addrinfo 158 # define gai_strerror my_gai_strerror 159 # define freeaddrinfo my_freeaddrinfo 160 # define getaddrinfo my_getaddrinfo 161 # define getnameinfo my_getnameinfo 162 #endif 163 164 /* <from linux's netdb.h> */ 165 /* Possible values for `ai_flags' field in `addrinfo' structure. */ 166 #define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */ 167 #define AI_CANONNAME 0x0002 /* Request for canonical name. */ 168 #define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */ 169 #define AI_V4MAPPED 0x0008 /* IPv4 mapped addresses are acceptable. */ 170 #define AI_ALL 0x0010 /* Return IPv4 mapped and IPv6 addresses. */ 171 #define AI_ADDRCONFIG \ 172 0x0020 /* Use configuration of this host to choose \ 173 returned address type.. */ 174 #ifdef __USE_GNU 175 # define AI_IDN \ 176 0x0040 /* IDN encode input (assuming it is encoded \ 177 in the current locale's character set) \ 178 before looking it up. */ 179 # define AI_CANONIDN 0x0080 /* Translate canonical name from IDN format. */ 180 # define AI_IDN_ALLOW_UNASSIGNED \ 181 0x0100 /* Don't reject unassigned Unicode \ 182 code points. */ 183 # define AI_IDN_USE_STD3_ASCII_RULES \ 184 0x0200 /* Validate strings according to \ 185 STD3 rules. */ 186 #endif 187 #define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */ 188 189 /* Error values for `getaddrinfo' function. */ 190 #define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */ 191 #define EAI_NONAME -2 /* NAME or SERVICE is unknown. */ 192 #define EAI_AGAIN -3 /* Temporary failure in name resolution. */ 193 #define EAI_FAIL -4 /* Non-recoverable failure in name res. */ 194 #define EAI_NODATA -5 /* No address associated with NAME. */ 195 #define EAI_FAMILY -6 /* `ai_family' not supported. */ 196 #define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */ 197 #define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */ 198 #define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */ 199 #define EAI_MEMORY -10 /* Memory allocation failure. */ 200 #define EAI_SYSTEM -11 /* System error returned in `errno'. */ 201 #define EAI_OVERFLOW -12 /* Argument buffer overflow. */ 202 #ifdef __USE_GNU 203 # define EAI_INPROGRESS -100 /* Processing request in progress. */ 204 # define EAI_CANCELED -101 /* Request canceled. */ 205 # define EAI_NOTCANCELED -102 /* Request not canceled. */ 206 # define EAI_ALLDONE -103 /* All requests done. */ 207 # define EAI_INTR -104 /* Interrupted by a signal. */ 208 # define EAI_IDN_ENCODE -105 /* IDN encoding failed. */ 209 #endif 210 211 #define NI_MAXHOST 1025 212 #define NI_MAXSERV 32 213 214 #define NI_NUMERICHOST 1 /* Don't try to look up hostname. */ 215 #define NI_NUMERICSERV 2 /* Don't convert port number to name. */ 216 #define NI_NOFQDN 4 /* Only return nodename portion. */ 217 #define NI_NAMEREQD 8 /* Don't return numeric addresses. */ 218 #define NI_DGRAM 16 /* Look up UDP service rather than TCP. */ 219 #ifdef __USE_GNU 220 # define NI_IDN 32 /* Convert name from IDN format. */ 221 # define NI_IDN_ALLOW_UNASSIGNED \ 222 64 /* Don't reject unassigned Unicode \ 223 code points. */ 224 # define NI_IDN_USE_STD3_ASCII_RULES \ 225 128 /* Validate strings according to \ 226 STD3 rules. */ 227 #endif 228 /* </from linux's netdb.h> */ 229 230 #define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG) 231 232 /* 233 * Address families and Protocol families. 234 */ 235 #ifndef AF_UNSPEC 236 # define AF_UNSPEC AF_INET 237 #endif 238 #ifndef PF_UNSPEC 239 # define PF_UNSPEC PF_INET 240 #endif 241 242 /* Nexenta OS(GNU/Solaris OS) defines `struct addrinfo' in netdb.h */ 243 #if !defined(__MINGW32__) && !defined(__sun) 244 245 /* 246 * struct addrinfo. 247 */ 248 struct addrinfo { 249 int ai_flags; 250 int ai_family; 251 int ai_socktype; 252 int ai_protocol; 253 socklen_t ai_addrlen; 254 char* ai_canonname; 255 struct sockaddr* ai_addr; 256 struct addrinfo* ai_next; 257 }; 258 259 #endif // !__MINGW32__ && !__sun 260 261 /* 262 * Functions. 263 */ 264 #ifdef __STDC__ 265 const char* gai_strerror(int); 266 void freeaddrinfo(struct addrinfo*); 267 int getaddrinfo(const char*, const char*, const struct addrinfo*, 268 struct addrinfo**); 269 int getnameinfo(const struct sockaddr*, socklen_t, char*, socklen_t, char*, 270 socklen_t, int); 271 #else 272 const char* gai_strerror(); 273 void freeaddrinfo(); 274 int getaddrinfo(); 275 int getnameinfo(); 276 #endif 277 278 #ifdef __cplusplus 279 }; 280 #endif /* __cplusplus */ 281 282 #endif /* not _D_GETADDRINFO_H */ 283