torint.h 8.4 KB

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  1. /* Copyright (c) 2003, Roger Dingledine
  2. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
  3. * Copyright (c) 2007-2017, The Tor Project, Inc. */
  4. /* See LICENSE for licensing information */
  5. /**
  6. * \file torint.h
  7. * \brief Header file to define uint32_t and friends
  8. **/
  9. #ifndef TOR_TORINT_H
  10. #define TOR_TORINT_H
  11. #include "orconfig.h"
  12. #ifdef HAVE_STDINT_H
  13. #include <stdint.h>
  14. #endif
  15. #ifdef HAVE_SYS_TYPES_H
  16. #include <sys/types.h>
  17. #endif
  18. #ifdef HAVE_LIMITS_H
  19. #include <limits.h>
  20. #endif
  21. #ifdef HAVE_SYS_LIMITS_H
  22. #include <sys/limits.h>
  23. #endif
  24. #ifdef HAVE_MACHINE_LIMITS_H
  25. #if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
  26. /* FreeBSD has a bug where it complains that this file is obsolete,
  27. and I should migrate to using sys/limits. It complains even when
  28. I include both.
  29. __FreeBSD_kernel__ is defined by Debian GNU/kFreeBSD which
  30. does the same thing (but doesn't defined __FreeBSD__).
  31. */
  32. #include <machine/limits.h>
  33. #endif /* !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) */
  34. #endif /* defined(HAVE_MACHINE_LIMITS_H) */
  35. #ifdef HAVE_INTTYPES_H
  36. #include <inttypes.h>
  37. #endif
  38. #if (SIZEOF_INT8_T != 0)
  39. #define HAVE_INT8_T
  40. #endif
  41. #if (SIZEOF_INT16_T != 0)
  42. #define HAVE_INT16_T
  43. #endif
  44. #if (SIZEOF_INT32_T != 0)
  45. #define HAVE_INT32_T
  46. #endif
  47. #if (SIZEOF_INT64_T != 0)
  48. #define HAVE_INT64_T
  49. #endif
  50. #if (SIZEOF_UINT8_T != 0)
  51. #define HAVE_UINT8_T
  52. #endif
  53. #if (SIZEOF_UINT16_T != 0)
  54. #define HAVE_UINT16_T
  55. #endif
  56. #if (SIZEOF_UINT32_T != 0)
  57. #define HAVE_UINT32_T
  58. #endif
  59. #if (SIZEOF_UINT64_T != 0)
  60. #define HAVE_UINT64_T
  61. #endif
  62. #if (SIZEOF_INTPTR_T != 0)
  63. #define HAVE_INTPTR_T
  64. #endif
  65. #if (SIZEOF_UINTPTR_T != 0)
  66. #define HAVE_UINTPTR_T
  67. #endif
  68. #if (SIZEOF_CHAR == 1)
  69. #ifndef HAVE_INT8_T
  70. typedef signed char int8_t;
  71. #define HAVE_INT8_T
  72. #endif
  73. #ifndef HAVE_UINT8_T
  74. typedef unsigned char uint8_t;
  75. #define HAVE_UINT8_T
  76. #endif
  77. #endif /* (SIZEOF_CHAR == 1) */
  78. #if (SIZEOF_SHORT == 2)
  79. #ifndef HAVE_INT16_T
  80. typedef signed short int16_t;
  81. #define HAVE_INT16_T
  82. #endif
  83. #ifndef HAVE_UINT16_T
  84. typedef unsigned short uint16_t;
  85. #define HAVE_UINT16_T
  86. #endif
  87. #endif /* (SIZEOF_SHORT == 2) */
  88. #if (SIZEOF_INT == 2)
  89. #ifndef HAVE_INT16_T
  90. typedef signed int int16_t;
  91. #define HAVE_INT16_T
  92. #endif
  93. #ifndef HAVE_UINT16_T
  94. typedef unsigned int uint16_t;
  95. #define HAVE_UINT16_T
  96. #endif
  97. #elif (SIZEOF_INT == 4)
  98. #ifndef HAVE_INT32_T
  99. typedef signed int int32_t;
  100. #define HAVE_INT32_T
  101. #endif
  102. #ifndef HAVE_UINT32_T
  103. typedef unsigned int uint32_t;
  104. #define HAVE_UINT32_T
  105. #endif
  106. #ifndef UINT16_MAX
  107. #define UINT16_MAX 0xffffu
  108. #endif
  109. #ifndef INT16_MAX
  110. #define INT16_MAX 0x7fff
  111. #endif
  112. #ifndef INT16_MIN
  113. #define INT16_MIN (-INT16_MAX-1)
  114. #endif
  115. #ifndef UINT32_MAX
  116. #define UINT32_MAX 0xffffffffu
  117. #endif
  118. #ifndef INT32_MAX
  119. #define INT32_MAX 0x7fffffff
  120. #endif
  121. #ifndef INT32_MIN
  122. #define INT32_MIN (-2147483647-1)
  123. #endif
  124. #endif /* (SIZEOF_INT == 2) || ... */
  125. #if (SIZEOF_LONG == 4)
  126. #ifndef HAVE_INT32_T
  127. typedef signed long int32_t;
  128. #define HAVE_INT32_T
  129. #endif
  130. #ifndef HAVE_UINT32_T
  131. typedef unsigned long uint32_t;
  132. #define HAVE_UINT32_T
  133. #ifndef UINT32_MAX
  134. #define UINT32_MAX 0xfffffffful
  135. #endif
  136. #endif /* !defined(HAVE_UINT32_T) */
  137. #elif (SIZEOF_LONG == 8)
  138. #ifndef HAVE_INT64_T
  139. typedef signed long int64_t;
  140. #define HAVE_INT64_T
  141. #endif
  142. #ifndef HAVE_UINT32_T
  143. typedef unsigned long uint64_t;
  144. #define HAVE_UINT32_T
  145. #endif
  146. #ifndef UINT64_MAX
  147. #define UINT64_MAX 0xfffffffffffffffful
  148. #endif
  149. #endif /* (SIZEOF_LONG == 4) || ... */
  150. #if (SIZEOF_LONG_LONG == 8)
  151. #ifndef HAVE_INT64_T
  152. typedef signed long long int64_t;
  153. #define HAVE_INT64_T
  154. #endif
  155. #ifndef HAVE_UINT64_T
  156. typedef unsigned long long uint64_t;
  157. #define HAVE_UINT64_T
  158. #endif
  159. #ifndef UINT64_MAX
  160. #define UINT64_MAX 0xffffffffffffffffull
  161. #endif
  162. #ifndef INT64_MAX
  163. #define INT64_MAX 0x7fffffffffffffffll
  164. #endif
  165. #endif /* (SIZEOF_LONG_LONG == 8) */
  166. #if (SIZEOF___INT64 == 8)
  167. #ifndef HAVE_INT64_T
  168. typedef signed __int64 int64_t;
  169. #define HAVE_INT64_T
  170. #endif
  171. #ifndef HAVE_UINT64_T
  172. typedef unsigned __int64 uint64_t;
  173. #define HAVE_UINT64_T
  174. #endif
  175. #ifndef UINT64_MAX
  176. #define UINT64_MAX 0xffffffffffffffffui64
  177. #endif
  178. #ifndef INT64_MAX
  179. #define INT64_MAX 0x7fffffffffffffffi64
  180. #endif
  181. #endif /* (SIZEOF___INT64 == 8) */
  182. #ifndef INT64_MIN
  183. #define INT64_MIN ((- INT64_MAX) - 1)
  184. #endif
  185. #ifndef SIZE_MAX
  186. #if SIZEOF_SIZE_T == 8
  187. #define SIZE_MAX UINT64_MAX
  188. #elif SIZEOF_SIZE_T == 4
  189. #define SIZE_MAX UINT32_MAX
  190. #else
  191. #error "Can't define SIZE_MAX"
  192. #endif /* SIZEOF_SIZE_T == 8 || ... */
  193. #endif /* !defined(SIZE_MAX) */
  194. #ifndef HAVE_SSIZE_T
  195. #if SIZEOF_SIZE_T == 8
  196. typedef int64_t ssize_t;
  197. #elif SIZEOF_SIZE_T == 4
  198. typedef int32_t ssize_t;
  199. #else
  200. #error "Can't define ssize_t."
  201. #endif /* SIZEOF_SIZE_T == 8 || ... */
  202. #endif /* !defined(HAVE_SSIZE_T) */
  203. #if (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8)
  204. #ifndef HAVE_INTPTR_T
  205. typedef int64_t intptr_t;
  206. #define SIZEOF_INTPTR_T 8
  207. #endif
  208. #ifndef HAVE_UINTPTR_T
  209. typedef uint64_t uintptr_t;
  210. #define SIZEOF_UINTPTR_T 8
  211. #endif
  212. #elif (SIZEOF_VOID_P > 2 && SIZEOF_VOID_P <= 4)
  213. #ifndef HAVE_INTPTR_T
  214. typedef int32_t intptr_t;
  215. #define SIZEOF_INTPTR_T 4
  216. #endif
  217. #ifndef HAVE_UINTPTR_T
  218. typedef uint32_t uintptr_t;
  219. #define SIZEOF_UINTPTR_T 4
  220. #endif
  221. #else
  222. #error "void * is either >8 bytes or <= 2. In either case, I am confused."
  223. #endif /* (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8) || ... */
  224. #ifndef HAVE_INT8_T
  225. #error "Missing type int8_t"
  226. #endif
  227. #ifndef HAVE_UINT8_T
  228. #error "Missing type uint8_t"
  229. #endif
  230. #ifndef HAVE_INT16_T
  231. #error "Missing type int16_t"
  232. #endif
  233. #ifndef HAVE_UINT16_T
  234. #error "Missing type uint16_t"
  235. #endif
  236. #ifndef HAVE_INT32_T
  237. #error "Missing type int32_t"
  238. #endif
  239. #ifndef HAVE_UINT32_T
  240. #error "Missing type uint32_t"
  241. #endif
  242. #ifndef HAVE_INT64_T
  243. #error "Missing type int64_t"
  244. #endif
  245. #ifndef HAVE_UINT64_T
  246. #error "Missing type uint64_t"
  247. #endif
  248. /* This assumes a sane (2's-complement) representation. But if you
  249. * aren't 2's complement, and you don't define LONG_MAX, then you're so
  250. * bizarre that I want nothing to do with you. */
  251. #ifndef USING_TWOS_COMPLEMENT
  252. #error "Seems that your platform doesn't use 2's complement arithmetic. Argh."
  253. #endif
  254. #ifndef LONG_MAX
  255. #if (SIZEOF_LONG == 4)
  256. #define LONG_MAX 0x7fffffffL
  257. #elif (SIZEOF_LONG == 8)
  258. #define LONG_MAX 0x7fffffffffffffffL
  259. #else
  260. #error "Can't define LONG_MAX"
  261. #endif /* (SIZEOF_LONG == 4) || ... */
  262. #endif /* !defined(LONG_MAX) */
  263. #ifndef INT_MAX
  264. #if (SIZEOF_INT == 4)
  265. #define INT_MAX 0x7fffffffL
  266. #elif (SIZEOF_INT == 8)
  267. #define INT_MAX 0x7fffffffffffffffL
  268. #else
  269. #error "Can't define INT_MAX"
  270. #endif /* (SIZEOF_INT == 4) || ... */
  271. #endif /* !defined(INT_MAX) */
  272. #ifndef UINT_MAX
  273. #if (SIZEOF_INT == 2)
  274. #define UINT_MAX 0xffffu
  275. #elif (SIZEOF_INT == 4)
  276. #define UINT_MAX 0xffffffffu
  277. #elif (SIZEOF_INT == 8)
  278. #define UINT_MAX 0xffffffffffffffffu
  279. #else
  280. #error "Can't define UINT_MAX"
  281. #endif /* (SIZEOF_INT == 2) || ... */
  282. #endif /* !defined(UINT_MAX) */
  283. #ifndef SHORT_MAX
  284. #if (SIZEOF_SHORT == 2)
  285. #define SHORT_MAX 0x7fff
  286. #elif (SIZEOF_SHORT == 4)
  287. #define SHORT_MAX 0x7fffffff
  288. #else
  289. #error "Can't define SHORT_MAX"
  290. #endif /* (SIZEOF_SHORT == 2) || ... */
  291. #endif /* !defined(SHORT_MAX) */
  292. #ifndef TIME_MAX
  293. #if (SIZEOF_TIME_T == SIZEOF_INT)
  294. #define TIME_MAX ((time_t)INT_MAX)
  295. #elif (SIZEOF_TIME_T == SIZEOF_LONG)
  296. #define TIME_MAX ((time_t)LONG_MAX)
  297. #elif (SIZEOF_TIME_T == 8)
  298. #define TIME_MAX ((time_t)INT64_MAX)
  299. #else
  300. #error "Can't define TIME_MAX"
  301. #endif /* (SIZEOF_TIME_T == SIZEOF_INT) || ... */
  302. #endif /* !defined(TIME_MAX) */
  303. #ifndef TIME_MIN
  304. #if (SIZEOF_TIME_T == SIZEOF_INT)
  305. #define TIME_MIN ((time_t)INT_MIN)
  306. #elif (SIZEOF_TIME_T == SIZEOF_LONG)
  307. #define TIME_MIN ((time_t)LONG_MIN)
  308. #elif (SIZEOF_TIME_T == 8)
  309. #define TIME_MIN ((time_t)INT64_MIN)
  310. #else
  311. #error "Can't define TIME_MIN"
  312. #endif /* (SIZEOF_TIME_T == SIZEOF_INT) || ... */
  313. #endif /* !defined(TIME_MIN) */
  314. #ifndef SIZE_MAX
  315. #if (SIZEOF_SIZE_T == 4)
  316. #define SIZE_MAX UINT32_MAX
  317. #elif (SIZEOF_SIZE_T == 8)
  318. #define SIZE_MAX UINT64_MAX
  319. #else
  320. #error "Can't define SIZE_MAX"
  321. #endif /* (SIZEOF_SIZE_T == 4) || ... */
  322. #endif /* !defined(SIZE_MAX) */
  323. #ifdef _WIN32
  324. # ifdef _WIN64
  325. # define TOR_PRIuSZ PRIu64
  326. # else
  327. # define TOR_PRIuSZ PRIu32
  328. # endif
  329. #else
  330. # define TOR_PRIuSZ "zu"
  331. #endif
  332. #ifndef SSIZE_MAX
  333. #if (SIZEOF_SIZE_T == 4)
  334. #define SSIZE_MAX INT32_MAX
  335. #elif (SIZEOF_SIZE_T == 8)
  336. #define SSIZE_MAX INT64_MAX
  337. #else
  338. #error "Can't define SSIZE_MAX"
  339. #endif /* (SIZEOF_SIZE_T == 4) || ... */
  340. #endif /* !defined(SSIZE_MAX) */
  341. /** Any ssize_t larger than this amount is likely to be an underflow. */
  342. #define SSIZE_T_CEILING ((ssize_t)(SSIZE_MAX-16))
  343. /** Any size_t larger than this amount is likely to be an underflow. */
  344. #define SIZE_T_CEILING ((size_t)(SSIZE_MAX-16))
  345. #endif /* !defined(TOR_TORINT_H) */