e_os2.h 8.5 KB

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  1. /*
  2. * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
  3. *
  4. * Licensed under the Apache License 2.0 (the "License"). You may not use
  5. * this file except in compliance with the License. You can obtain a copy
  6. * in the file LICENSE in the source distribution or at
  7. * https://www.openssl.org/source/license.html
  8. */
  9. #ifndef OPENSSL_E_OS2_H
  10. # define OPENSSL_E_OS2_H
  11. # pragma once
  12. # include <openssl/macros.h>
  13. # ifndef OPENSSL_NO_DEPRECATED_3_0
  14. # define HEADER_E_OS2_H
  15. # endif
  16. # include <openssl/opensslconf.h>
  17. #ifdef __cplusplus
  18. extern "C" {
  19. #endif
  20. /******************************************************************************
  21. * Detect operating systems. This probably needs completing.
  22. * The result is that at least one OPENSSL_SYS_os macro should be defined.
  23. * However, if none is defined, Unix is assumed.
  24. **/
  25. # define OPENSSL_SYS_UNIX
  26. /* --------------------- Microsoft operating systems ---------------------- */
  27. /*
  28. * Note that MSDOS actually denotes 32-bit environments running on top of
  29. * MS-DOS, such as DJGPP one.
  30. */
  31. # if defined(OPENSSL_SYS_MSDOS)
  32. # undef OPENSSL_SYS_UNIX
  33. # endif
  34. /*
  35. * For 32 bit environment, there seems to be the CygWin environment and then
  36. * all the others that try to do the same thing Microsoft does...
  37. */
  38. /*
  39. * UEFI lives here because it might be built with a Microsoft toolchain and
  40. * we need to avoid the false positive match on Windows.
  41. */
  42. # if defined(OPENSSL_SYS_UEFI)
  43. # undef OPENSSL_SYS_UNIX
  44. # elif defined(OPENSSL_SYS_UWIN)
  45. # undef OPENSSL_SYS_UNIX
  46. # define OPENSSL_SYS_WIN32_UWIN
  47. # else
  48. # if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
  49. # define OPENSSL_SYS_WIN32_CYGWIN
  50. # else
  51. # if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
  52. # undef OPENSSL_SYS_UNIX
  53. # if !defined(OPENSSL_SYS_WIN32)
  54. # define OPENSSL_SYS_WIN32
  55. # endif
  56. # endif
  57. # if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
  58. # undef OPENSSL_SYS_UNIX
  59. # if !defined(OPENSSL_SYS_WIN64)
  60. # define OPENSSL_SYS_WIN64
  61. # endif
  62. # endif
  63. # if defined(OPENSSL_SYS_WINNT)
  64. # undef OPENSSL_SYS_UNIX
  65. # endif
  66. # if defined(OPENSSL_SYS_WINCE)
  67. # undef OPENSSL_SYS_UNIX
  68. # endif
  69. # endif
  70. # endif
  71. /* Anything that tries to look like Microsoft is "Windows" */
  72. # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
  73. # undef OPENSSL_SYS_UNIX
  74. # define OPENSSL_SYS_WINDOWS
  75. # ifndef OPENSSL_SYS_MSDOS
  76. # define OPENSSL_SYS_MSDOS
  77. # endif
  78. # endif
  79. /*
  80. * DLL settings. This part is a bit tough, because it's up to the
  81. * application implementor how he or she will link the application, so it
  82. * requires some macro to be used.
  83. */
  84. # ifdef OPENSSL_SYS_WINDOWS
  85. # ifndef OPENSSL_OPT_WINDLL
  86. # if defined(_WINDLL) /* This is used when building OpenSSL to
  87. * indicate that DLL linkage should be used */
  88. # define OPENSSL_OPT_WINDLL
  89. # endif
  90. # endif
  91. # endif
  92. /* ------------------------------- OpenVMS -------------------------------- */
  93. # if defined(__VMS) || defined(VMS)
  94. # if !defined(OPENSSL_SYS_VMS)
  95. # undef OPENSSL_SYS_UNIX
  96. # define OPENSSL_SYS_VMS
  97. # endif
  98. # if defined(__DECC)
  99. # define OPENSSL_SYS_VMS_DECC
  100. # elif defined(__DECCXX)
  101. # define OPENSSL_SYS_VMS_DECC
  102. # define OPENSSL_SYS_VMS_DECCXX
  103. # else
  104. # define OPENSSL_SYS_VMS_NODECC
  105. # endif
  106. # endif
  107. /* -------------------------------- Unix ---------------------------------- */
  108. # ifdef OPENSSL_SYS_UNIX
  109. # if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
  110. # define OPENSSL_SYS_LINUX
  111. # endif
  112. # if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
  113. # define OPENSSL_SYS_AIX
  114. # endif
  115. # endif
  116. /* -------------------------------- VOS ----------------------------------- */
  117. # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
  118. # define OPENSSL_SYS_VOS
  119. # ifdef __HPPA__
  120. # define OPENSSL_SYS_VOS_HPPA
  121. # endif
  122. # ifdef __IA32__
  123. # define OPENSSL_SYS_VOS_IA32
  124. # endif
  125. # endif
  126. /* ---------------------------- HP NonStop -------------------------------- */
  127. # ifdef __TANDEM
  128. # ifdef _STRING
  129. # include <strings.h>
  130. # endif
  131. # define OPENSSL_USE_BUILD_DATE
  132. # if defined(OPENSSL_THREADS) && defined(_SPT_MODEL_)
  133. # define SPT_THREAD_SIGNAL 1
  134. # define SPT_THREAD_AWARE 1
  135. # include <spthread.h>
  136. # elif defined(OPENSSL_THREADS) && defined(_PUT_MODEL_)
  137. # include <pthread.h>
  138. # endif
  139. # endif
  140. /**
  141. * That's it for OS-specific stuff
  142. *****************************************************************************/
  143. /*-
  144. * OPENSSL_EXTERN is normally used to declare a symbol with possible extra
  145. * attributes to handle its presence in a shared library.
  146. * OPENSSL_EXPORT is used to define a symbol with extra possible attributes
  147. * to make it visible in a shared library.
  148. * Care needs to be taken when a header file is used both to declare and
  149. * define symbols. Basically, for any library that exports some global
  150. * variables, the following code must be present in the header file that
  151. * declares them, before OPENSSL_EXTERN is used:
  152. *
  153. * #ifdef SOME_BUILD_FLAG_MACRO
  154. * # undef OPENSSL_EXTERN
  155. * # define OPENSSL_EXTERN OPENSSL_EXPORT
  156. * #endif
  157. *
  158. * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
  159. * have some generally sensible values.
  160. */
  161. # if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
  162. # define OPENSSL_EXPORT extern __declspec(dllexport)
  163. # define OPENSSL_EXTERN extern __declspec(dllimport)
  164. # else
  165. # define OPENSSL_EXPORT extern
  166. # define OPENSSL_EXTERN extern
  167. # endif
  168. # ifdef _WIN32
  169. # ifdef _WIN64
  170. # define ossl_ssize_t __int64
  171. # define OSSL_SSIZE_MAX _I64_MAX
  172. # else
  173. # define ossl_ssize_t int
  174. # define OSSL_SSIZE_MAX INT_MAX
  175. # endif
  176. # endif
  177. # if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
  178. # define ossl_ssize_t INTN
  179. # define OSSL_SSIZE_MAX MAX_INTN
  180. # endif
  181. # ifndef ossl_ssize_t
  182. # define ossl_ssize_t ssize_t
  183. # if defined(SSIZE_MAX)
  184. # define OSSL_SSIZE_MAX SSIZE_MAX
  185. # elif defined(_POSIX_SSIZE_MAX)
  186. # define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
  187. # else
  188. # define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
  189. # endif
  190. # endif
  191. # if defined(UNUSEDRESULT_DEBUG)
  192. # define __owur __attribute__((__warn_unused_result__))
  193. # else
  194. # define __owur
  195. # endif
  196. /* Standard integer types */
  197. # define OPENSSL_NO_INTTYPES_H
  198. # define OPENSSL_NO_STDINT_H
  199. # if defined(OPENSSL_SYS_UEFI)
  200. typedef INT8 int8_t;
  201. typedef UINT8 uint8_t;
  202. typedef INT16 int16_t;
  203. typedef UINT16 uint16_t;
  204. typedef INT32 int32_t;
  205. typedef UINT32 uint32_t;
  206. typedef INT64 int64_t;
  207. typedef UINT64 uint64_t;
  208. # elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
  209. defined(__osf__) || defined(__sgi) || defined(__hpux) || \
  210. defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
  211. # include <inttypes.h>
  212. # undef OPENSSL_NO_INTTYPES_H
  213. /* Because the specs say that inttypes.h includes stdint.h if present */
  214. # undef OPENSSL_NO_STDINT_H
  215. # elif defined(_MSC_VER) && _MSC_VER<1600
  216. /*
  217. * minimally required typdefs for systems not supporting inttypes.h or
  218. * stdint.h: currently just older VC++
  219. */
  220. typedef signed char int8_t;
  221. typedef unsigned char uint8_t;
  222. typedef short int16_t;
  223. typedef unsigned short uint16_t;
  224. typedef int int32_t;
  225. typedef unsigned int uint32_t;
  226. typedef __int64 int64_t;
  227. typedef unsigned __int64 uint64_t;
  228. # else
  229. # include <stdint.h>
  230. # undef OPENSSL_NO_STDINT_H
  231. # endif
  232. # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \
  233. defined(INTMAX_MAX) && defined(UINTMAX_MAX)
  234. typedef intmax_t ossl_intmax_t;
  235. typedef uintmax_t ossl_uintmax_t;
  236. # else
  237. /* Fall back to the largest we know we require and can handle */
  238. typedef int64_t ossl_intmax_t;
  239. typedef uint64_t ossl_uintmax_t;
  240. # endif
  241. /* ossl_inline: portable inline definition usable in public headers */
  242. # if !defined(inline) && !defined(__cplusplus)
  243. # if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
  244. /* just use inline */
  245. # define ossl_inline inline
  246. # elif defined(__GNUC__) && __GNUC__>=2
  247. # define ossl_inline __inline__
  248. # elif defined(_MSC_VER)
  249. /*
  250. * Visual Studio: inline is available in C++ only, however
  251. * __inline is available for C, see
  252. * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
  253. */
  254. # define ossl_inline __inline
  255. # else
  256. # define ossl_inline
  257. # endif
  258. # else
  259. # define ossl_inline inline
  260. # endif
  261. # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && \
  262. !defined(__cplusplus)
  263. # define ossl_noreturn _Noreturn
  264. # elif defined(__GNUC__) && __GNUC__ >= 2
  265. # define ossl_noreturn __attribute__((noreturn))
  266. # else
  267. # define ossl_noreturn
  268. # endif
  269. /* ossl_unused: portable unused attribute for use in public headers */
  270. # if defined(__GNUC__)
  271. # define ossl_unused __attribute__((unused))
  272. # else
  273. # define ossl_unused
  274. # endif
  275. #ifdef __cplusplus
  276. }
  277. #endif
  278. #endif