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/src/getaddrinfo.h

https://github.com/joelimome/aria2
C Header | 276 lines | 195 code | 24 blank | 57 comment | 2 complexity | c52d5862a640be66407a1d5ab111740a MD5 | raw file
    

  1. /*
    2. 

  2.  * Copyright (c) 2001, 02  Motoyuki Kasahara
    3. 

  3.  *
    4. 

  4.  * Redistribution and use in source and binary forms, with or without
    5. 

  5.  * modification, are permitted provided that the following conditions
    6. 

  6.  * are met:
    7. 

  7.  * 1. Redistributions of source code must retain the above copyright
    8. 

  8.  *    notice, this list of conditions and the following disclaimer.
    9. 

  9.  * 2. Redistributions in binary form must reproduce the above copyright
    10. 

  10.  *    notice, this list of conditions and the following disclaimer in the
    11. 

  11.  *    documentation and/or other materials provided with the distribution.
    12. 

  12.  * 3. Neither the name of the project nor the names of its contributors
    13. 

  13.  *    may be used to endorse or promote products derived from this software
    14. 

  14.  *    without specific prior written permission.
    15. 

  15.  *
    16. 

  16.  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
    17. 

  17.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    18. 

  18.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    19. 

  19.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
    20. 

  20.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    21. 

  21.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    22. 

  22.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    23. 

  23.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    24. 

  24.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    25. 

  25.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    26. 

  26.  * SUCH DAMAGE.
    27. 

  27.  */
    28. 

  28. 

  29. #ifndef _D_GETADDRINFO_H
    30. 

  30. #define _D_GETADDRINFO_H
    31. 

  31. 

  32. #ifdef __cplusplus
    33. 

  33. extern "C" {
    34. 

  34. #endif /* __cplusplus */
    35. 

  35. 

  36. #ifdef __MINGW32__
    37. 

  37. # undef SIZE_MAX
    38. 

  38. #endif // __MINGW32__
    39. 

  39. 

  40. #ifdef HAVE_CONFIG_H
    41. 

  41. # include "config.h"
    42. 

  42. #endif // HAVE_CONFIG_H
    43. 

  43. 

  44. #ifdef __MINGW32__
    45. 

  45. # ifndef _WIN32_WINNT
    46. 

  46. #  define _WIN32_WINNT 0x501
    47. 

  47. # endif // _WIN32_WINNT
    48. 

  48. # include <winsock2.h>
    49. 

  49. # undef ERROR
    50. 

  50. # include <ws2tcpip.h>
    51. 

  51. #endif // __MINGW32__
    52. 

  52. 

  53. #ifdef HAVE_SYS_SOCKET_H
    54. 

  54. # include <sys/socket.h>
    55. 

  55. #endif // HAVE_SYS_SOCKET_H
    56. 

  56. #ifdef HAVE_NETDB_H
    57. 

  57. # include <netdb.h>
    58. 

  58. #endif // HAVE_NETDB_H
    59. 

  59. 

  60. #include <sys/types.h>
    61. 

  61. 

  62. /********************************************************************/
    63. 

  63. /*
    64. 

  64.  * Undefine all the macros.
    65. 

  65.  * <netdb.h> might defines some of them.
    66. 

  66.  */
    67. 

  67. #ifdef EAI_ADDRFAMILY
    68. 

  68. #undef EAI_ADDRFAMILY
    69. 

  69. #endif
    70. 

  70. #ifdef EAI_AGAIN
    71. 

  71. #undef EAI_AGAIN
    72. 

  72. #endif
    73. 

  73. #ifdef EAI_BADFLAGS
    74. 

  74. #undef EAI_BADFLAGS
    75. 

  75. #endif
    76. 

  76. #ifdef EAI_FAIL
    77. 

  77. #undef EAI_FAIL
    78. 

  78. #endif
    79. 

  79. #ifdef EAI_FAMILY
    80. 

  80. #undef EAI_FAMILY
    81. 

  81. #endif
    82. 

  82. #ifdef EAI_MEMORY
    83. 

  83. #undef EAI_MEMORY
    84. 

  84. #endif
    85. 

  85. #ifdef EAI_NONAME
    86. 

  86. #undef EAI_NONAME
    87. 

  87. #endif
    88. 

  88. #ifdef EAI_OVERFLOW
    89. 

  89. #undef EAI_OVERFLOW
    90. 

  90. #endif
    91. 

  91. #ifdef EAI_SERVICE
    92. 

  92. #undef EAI_SERVICE
    93. 

  93. #endif
    94. 

  94. #ifdef EAI_SOCKTYPE
    95. 

  95. #undef EAI_SOCKTYPE
    96. 

  96. #endif
    97. 

  97. #ifdef EAI_SYSTEM
    98. 

  98. #undef EAI_SYSTEM
    99. 

  99. #endif
    100. 

  100. 

  101. #ifdef AI_PASSIVE
    102. 

  102. #undef AI_PASSIVE
    103. 

  103. #endif
    104. 

  104. #ifdef AI_CANONNAME
    105. 

  105. #undef AI_CANONNAME
    106. 

  106. #endif
    107. 

  107. #ifdef AI_NUMERICHOST
    108. 

  108. #undef AI_NUMERICHOST
    109. 

  109. #endif
    110. 

  110. #ifdef AI_NUMERICSERV
    111. 

  111. #undef AI_NUMERICSERV
    112. 

  112. #endif
    113. 

  113. #ifdef AI_V4MAPPED
    114. 

  114. #undef AI_V4MAPPED
    115. 

  115. #endif
    116. 

  116. #ifdef AI_ALL
    117. 

  117. #undef AI_ALL
    118. 

  118. #endif
    119. 

  119. #ifdef AI_ADDRCONFIG
    120. 

  120. #undef AI_ADDRCONFIG
    121. 

  121. #endif
    122. 

  122. #ifdef AI_DEFAULT
    123. 

  123. #undef AI_DEFAULT
    124. 

  124. #endif
    125. 

  125. 

  126. #ifdef NI_NOFQDN
    127. 

  127. #undef NI_NOFQDN
    128. 

  128. #endif
    129. 

  129. #ifdef NI_NUMERICHOST
    130. 

  130. #undef NI_NUMERICHOST
    131. 

  131. #endif
    132. 

  132. #ifdef NI_NAMEREQD
    133. 

  133. #undef NI_NAMEREQD
    134. 

  134. #endif
    135. 

  135. #ifdef NI_NUMERICSERV
    136. 

  136. #undef NI_NUMERICSERV
    137. 

  137. #endif
    138. 

  138. #ifdef NI_NUMERICSCOPE
    139. 

  139. #undef NI_NUMERICSCOPE
    140. 

  140. #endif
    141. 

  141. 

  142. #ifdef NI_DGRAM
    143. 

  143. #undef NI_DGRAM
    144. 

  144. #endif
    145. 

  145. #ifdef NI_MAXHOST
    146. 

  146. #undef NI_MAXHOST
    147. 

  147. #endif
    148. 

  148. #ifdef NI_MAXSERV
    149. 

  149. #undef NI_MAXSERV
    150. 

  150. #endif
    151. 

  151. 

  152. /*
    153. 

  153.  * Fake struct and function names.
    154. 

  154.  * <netdb.h> might declares all or some of them.
    155. 

  155.  */
    156. 

  156. #if defined(HAVE_GETADDRINFO) || defined(HAVE_GETNAMEINFO)
    157. 

  157. #define addrinfo my_addrinfo
    158. 

  158. #define gai_strerror my_gai_strerror
    159. 

  159. #define freeaddrinfo my_freeaddrinfo
    160. 

  160. #define getaddrinfo my_getaddrinfo
    161. 

  161. #define getnameinfo my_getnameinfo
    162. 

  162. #endif
    163. 

  163. 

  164. /* <from linux's netdb.h> */
    165. 

  165. /* Possible values for `ai_flags' field in `addrinfo' structure.  */
    166. 

  166. # define AI_PASSIVE     0x0001  /* Socket address is intended for `bind'.  */
    167. 

  167. # define AI_CANONNAME   0x0002  /* Request for canonical name.  */
    168. 

  168. # define AI_NUMERICHOST 0x0004  /* Don't use name resolution.  */
    169. 

  169. # define AI_V4MAPPED    0x0008  /* IPv4 mapped addresses are acceptable.  */
    170. 

  170. # define AI_ALL         0x0010  /* Return IPv4 mapped and IPv6 addresses.  */
    171. 

  171. # define AI_ADDRCONFIG  0x0020  /* Use configuration of this host to choose
    172. 

  172.                                    returned address type..  */
    173. 

  173. # ifdef __USE_GNU
    174. 

  174. #  define AI_IDN        0x0040  /* IDN encode input (assuming it is encoded
    175. 

  175.                                    in the current locale's character set)
    176. 

  176.                                    before looking it up. */
    177. 

  177. #  define AI_CANONIDN   0x0080  /* Translate canonical name from IDN format. */
    178. 

  178. #  define AI_IDN_ALLOW_UNASSIGNED 0x0100 /* Don't reject unassigned Unicode
    179. 

  179.                                             code points.  */
    180. 

  180. #  define AI_IDN_USE_STD3_ASCII_RULES 0x0200 /* Validate strings according to
    181. 

  181.                                                 STD3 rules.  */
    182. 

  182. # endif
    183. 

  183. # define AI_NUMERICSERV 0x0400  /* Don't use name resolution.  */
    184. 

  184. 

  185. /* Error values for `getaddrinfo' function.  */
    186. 

  186. # define EAI_BADFLAGS     -1    /* Invalid value for `ai_flags' field.  */
    187. 

  187. # define EAI_NONAME       -2    /* NAME or SERVICE is unknown.  */
    188. 

  188. # define EAI_AGAIN        -3    /* Temporary failure in name resolution.  */
    189. 

  189. # define EAI_FAIL         -4    /* Non-recoverable failure in name res.  */
    190. 

  190. # define EAI_NODATA       -5    /* No address associated with NAME.  */
    191. 

  191. # define EAI_FAMILY       -6    /* `ai_family' not supported.  */
    192. 

  192. # define EAI_SOCKTYPE     -7    /* `ai_socktype' not supported.  */
    193. 

  193. # define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
    194. 

  194. # define EAI_ADDRFAMILY   -9    /* Address family for NAME not supported.  */
    195. 

  195. # define EAI_MEMORY       -10   /* Memory allocation failure.  */
    196. 

  196. # define EAI_SYSTEM       -11   /* System error returned in `errno'.  */
    197. 

  197. # define EAI_OVERFLOW     -12   /* Argument buffer overflow.  */
    198. 

  198. # ifdef __USE_GNU
    199. 

  199. #  define EAI_INPROGRESS  -100  /* Processing request in progress.  */
    200. 

  200. #  define EAI_CANCELED    -101  /* Request canceled.  */
    201. 

  201. #  define EAI_NOTCANCELED -102  /* Request not canceled.  */
    202. 

  202. #  define EAI_ALLDONE     -103  /* All requests done.  */
    203. 

  203. #  define EAI_INTR        -104  /* Interrupted by a signal.  */
    204. 

  204. #  define EAI_IDN_ENCODE  -105  /* IDN encoding failed.  */
    205. 

  205. # endif
    206. 

  206. 

  207. #define NI_MAXHOST	1025
    208. 

  208. #define NI_MAXSERV	32
    209. 

  209. 

  210. # define NI_NUMERICHOST 1       /* Don't try to look up hostname.  */
    211. 

  211. # define NI_NUMERICSERV 2       /* Don't convert port number to name.  */
    212. 

  212. # define NI_NOFQDN      4       /* Only return nodename portion.  */
    213. 

  213. # define NI_NAMEREQD    8       /* Don't return numeric addresses.  */
    214. 

  214. # define NI_DGRAM       16      /* Look up UDP service rather than TCP.  */
    215. 

  215. # ifdef __USE_GNU
    216. 

  216. #  define NI_IDN        32      /* Convert name from IDN format.  */
    217. 

  217. #  define NI_IDN_ALLOW_UNASSIGNED 64 /* Don't reject unassigned Unicode
    218. 

  218.                                         code points.  */
    219. 

  219. #  define NI_IDN_USE_STD3_ASCII_RULES 128 /* Validate strings according to
    220. 

  220.                                              STD3 rules.  */
    221. 

  221. # endif
    222. 

  222. /* </from linux's netdb.h> */
    223. 

  223. 

  224. #define AI_DEFAULT	(AI_V4MAPPED | AI_ADDRCONFIG)
    225. 

  225. 

  226. /*
    227. 

  227.  * Address families and Protocol families.
    228. 

  228.  */
    229. 

  229. #ifndef AF_UNSPEC
    230. 

  230. #define AF_UNSPEC AF_INET
    231. 

  231. #endif
    232. 

  232. #ifndef PF_UNSPEC
    233. 

  233. #define PF_UNSPEC PF_INET
    234. 

  234. #endif
    235. 

  235. 

  236. /* Nexenta OS(GNU/Solaris OS) defines `struct addrinfo' in netdb.h */
    237. 

  237. #if !defined( __MINGW32__ ) && !defined( __sun )
    238. 

  238. 

  239. /*
    240. 

  240.  * struct addrinfo.
    241. 

  241.  */
    242. 

  242. struct addrinfo {
    243. 

  243.     int ai_flags;
    244. 

  244.     int ai_family;
    245. 

  245.     int ai_socktype;
    246. 

  246.     int ai_protocol;
    247. 

  247.     socklen_t ai_addrlen;
    248. 

  248.     char *ai_canonname;
    249. 

  249.     struct sockaddr *ai_addr;
    250. 

  250.     struct addrinfo *ai_next;
    251. 

  251. };
    252. 

  252. 

  253. #endif // !__MINGW32__ && !__sun
    254. 

  254. 

  255. /*
    256. 

  256.  * Functions.
    257. 

  257.  */
    258. 

  258. #ifdef __STDC__
    259. 

  259. const char *gai_strerror(int);
    260. 

  260. void freeaddrinfo(struct addrinfo *);
    261. 

  261. int getaddrinfo(const char *, const char *, const struct addrinfo *,
    262. 

  262.     struct addrinfo **);
    263. 

  263. int getnameinfo(const struct sockaddr *, socklen_t, char *,
    264. 

  264.     socklen_t, char *, socklen_t, int);
    265. 

  265. #else
    266. 

  266. const char *gai_strerror();
    267. 

  267. void freeaddrinfo();
    268. 

  268. int getaddrinfo();
    269. 

  269. int getnameinfo();
    270. 

  270. #endif
    271. 

  271. 

  272. #ifdef __cplusplus
    273. 

  273. };
    274. 

  274. #endif /* __cplusplus */
    275. 

  275. 

  276. #endif /* not _D_GETADDRINFO_H */
    277. 

  277.