include/openssl/e_os2.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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
  10 #ifndef HEADER_E_OS2_H
  11 # define HEADER_E_OS2_H
  12
  13 # include <openssl/opensslconf.h>
  14
  15 #ifdef  __cplusplus
  16 extern "C" {
  17 #endif
  18
  19 /******************************************************************************
  20  * Detect operating systems.  This probably needs completing.
  21  * The result is that at least one OPENSSL_SYS_os macro should be defined.
  22  * However, if none is defined, Unix is assumed.
  23  **/
  24
  25 # define OPENSSL_SYS_UNIX
  26
  27 /* --------------------- Microsoft operating systems ---------------------- */
  28
  29 /*
  30  * Note that MSDOS actually denotes 32-bit environments running on top of
  31  * MS-DOS, such as DJGPP one.
  32  */
  33 # if defined(OPENSSL_SYS_MSDOS)
  34 #  undef OPENSSL_SYS_UNIX
  35 # endif
  36
  37 /*
  38  * For 32 bit environment, there seems to be the CygWin environment and then
  39  * all the others that try to do the same thing Microsoft does...
  40  */
  41 /*
  42  * UEFI lives here because it might be built with a Microsoft toolchain and
  43  * we need to avoid the false positive match on Windows.
  44  */
  45 # if defined(OPENSSL_SYS_UEFI)
  46 #  undef OPENSSL_SYS_UNIX
  47 # elif defined(OPENSSL_SYS_UWIN)
  48 #  undef OPENSSL_SYS_UNIX
  49 #  define OPENSSL_SYS_WIN32_UWIN
  50 # else
  51 #  if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
  52 #   undef OPENSSL_SYS_UNIX
  53 #   define OPENSSL_SYS_WIN32_CYGWIN
  54 #  else
  55 #   if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
  56 #    undef OPENSSL_SYS_UNIX
  57 #    if !defined(OPENSSL_SYS_WIN32)
  58 #     define OPENSSL_SYS_WIN32
  59 #    endif
  60 #   endif
  61 #   if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
  62 #    undef OPENSSL_SYS_UNIX
  63 #    if !defined(OPENSSL_SYS_WIN64)
  64 #     define OPENSSL_SYS_WIN64
  65 #    endif
  66 #   endif
  67 #   if defined(OPENSSL_SYS_WINNT)
  68 #    undef OPENSSL_SYS_UNIX
  69 #   endif
  70 #   if defined(OPENSSL_SYS_WINCE)
  71 #    undef OPENSSL_SYS_UNIX
  72 #   endif
  73 #  endif
  74 # endif
  75
  76 /* Anything that tries to look like Microsoft is "Windows" */
  77 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
  78 #  undef OPENSSL_SYS_UNIX
  79 #  define OPENSSL_SYS_WINDOWS
  80 #  ifndef OPENSSL_SYS_MSDOS
  81 #   define OPENSSL_SYS_MSDOS
  82 #  endif
  83 # endif
  84
  85 /*
  86  * DLL settings.  This part is a bit tough, because it's up to the
  87  * application implementor how he or she will link the application, so it
  88  * requires some macro to be used.
  89  */
  90 # ifdef OPENSSL_SYS_WINDOWS
  91 #  ifndef OPENSSL_OPT_WINDLL
  92 #   if defined(_WINDLL)         /* This is used when building OpenSSL to
  93                                  * indicate that DLL linkage should be used */
  94 #    define OPENSSL_OPT_WINDLL
  95 #   endif
  96 #  endif
  97 # endif
  98
  99 /* ------------------------------- OpenVMS -------------------------------- */
 100 # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS)
 101 #  if !defined(OPENSSL_SYS_VMS)
 102 #   undef OPENSSL_SYS_UNIX
 103 #  endif
 104 #  define OPENSSL_SYS_VMS
 105 #  if defined(__DECC)
 106 #   define OPENSSL_SYS_VMS_DECC
 107 #  elif defined(__DECCXX)
 108 #   define OPENSSL_SYS_VMS_DECC
 109 #   define OPENSSL_SYS_VMS_DECCXX
 110 #  else
 111 #   define OPENSSL_SYS_VMS_NODECC
 112 #  endif
 113 # endif
 114
 115 /* -------------------------------- Unix ---------------------------------- */
 116 # ifdef OPENSSL_SYS_UNIX
 117 #  if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
 118 #   define OPENSSL_SYS_LINUX
 119 #  endif
 120 #  if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
 121 #   define OPENSSL_SYS_AIX
 122 #  endif
 123 # endif
 124
 125 /* -------------------------------- VOS ----------------------------------- */
 126 # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
 127 #  define OPENSSL_SYS_VOS
 128 #  ifdef __HPPA__
 129 #   define OPENSSL_SYS_VOS_HPPA
 130 #  endif
 131 #  ifdef __IA32__
 132 #   define OPENSSL_SYS_VOS_IA32
 133 #  endif
 134 # endif
 135
 136 /**
 137  * That's it for OS-specific stuff
 138  *****************************************************************************/
 139
 140 /* Specials for I/O an exit */
 141 # ifdef OPENSSL_SYS_MSDOS
 142 #  define OPENSSL_UNISTD_IO <io.h>
 143 #  define OPENSSL_DECLARE_EXIT extern void exit(int);
 144 # else
 145 #  define OPENSSL_UNISTD_IO OPENSSL_UNISTD
 146 #  define OPENSSL_DECLARE_EXIT  /* declared in unistd.h */
 147 # endif
 148
 149 /*-
 150  * Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
 151  * certain global symbols that, with some compilers under VMS, have to be
 152  * defined and declared explicitly with globaldef and globalref.
 153  * Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
 154  * DLL exports and imports for compilers under Win32.  These are a little
 155  * more complicated to use.  Basically, for any library that exports some
 156  * global variables, the following code must be present in the header file
 157  * that declares them, before OPENSSL_EXTERN is used:
 158  *
 159  * #ifdef SOME_BUILD_FLAG_MACRO
 160  * # undef OPENSSL_EXTERN
 161  * # define OPENSSL_EXTERN OPENSSL_EXPORT
 162  * #endif
 163  *
 164  * The default is to have OPENSSL_EXPORT, OPENSSL_EXTERN and OPENSSL_GLOBAL
 165  * have some generally sensible values.
 166  */
 167
 168 # if defined(OPENSSL_SYS_VMS_NODECC)
 169 #  define OPENSSL_EXPORT globalref
 170 #  define OPENSSL_EXTERN globalref
 171 #  define OPENSSL_GLOBAL globaldef
 172 # elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
 173 #  define OPENSSL_EXPORT extern __declspec(dllexport)
 174 #  define OPENSSL_EXTERN extern __declspec(dllimport)
 175 #  define OPENSSL_GLOBAL
 176 # else
 177 #  define OPENSSL_EXPORT extern
 178 #  define OPENSSL_EXTERN extern
 179 #  define OPENSSL_GLOBAL
 180 # endif
 181
 182 /*-
 183  * Macros to allow global variables to be reached through function calls when
 184  * required (if a shared library version requires it, for example.
 185  * The way it's done allows definitions like this:
 186  *
 187  *      // in foobar.c
 188  *      OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0)
 189  *      // in foobar.h
 190  *      OPENSSL_DECLARE_GLOBAL(int,foobar);
 191  *      #define foobar OPENSSL_GLOBAL_REF(foobar)
 192  */
 193 # ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
 194 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name,value)                      \
 195         type *_shadow_##name(void)                                      \
 196         { static type _hide_##name=value; return &_hide_##name; }
 197 #  define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
 198 #  define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
 199 # else
 200 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) OPENSSL_GLOBAL type _shadow_##name=value;
 201 #  define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
 202 #  define OPENSSL_GLOBAL_REF(name) _shadow_##name
 203 # endif
 204
 205 # ifdef _WIN32
 206 #  ifdef _WIN64
 207 #   define ossl_ssize_t __int64
 208 #   define OSSL_SSIZE_MAX _I64_MAX
 209 #  else
 210 #   define ossl_ssize_t int
 211 #   define OSSL_SSIZE_MAX INT_MAX
 212 #  endif
 213 # endif
 214
 215 # if defined(OPENSSL_SYS_UEFI) && !defined(ssize_t)
 216 #  define ossl_ssize_t int
 217 #  define OSSL_SSIZE_MAX INT_MAX
 218 # endif
 219
 220 # ifndef ossl_ssize_t
 221 #  define ossl_ssize_t ssize_t
 222 #  define OSSL_SSIZE_MAX SSIZE_MAX
 223 # endif
 224
 225 # ifdef DEBUG_UNUSED
 226 #  define __owur __attribute__((__warn_unused_result__))
 227 # else
 228 #  define __owur
 229 # endif
 230
 231 /* Standard integer types */
 232 # if defined(OPENSSL_SYS_UEFI)
 233 typedef INT8 int8_t;
 234 typedef UINT8 uint8_t;
 235 typedef INT16 int16_t;
 236 typedef UINT16 uint16_t;
 237 typedef INT32 int32_t;
 238 typedef UINT32 uint32_t;
 239 typedef INT64 int64_t;
 240 typedef UINT64 uint64_t;
 241 #  define PRIu64 "%Lu"
 242 # elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
 243      defined(__osf__) || defined(__sgi) || defined(__hpux) || \
 244      defined(OPENSSL_SYS_VMS)
 245 #  include <inttypes.h>
 246 # elif defined(_MSC_VER) && _MSC_VER<=1500
 247 /*
 248  * minimally required typdefs for systems not supporting inttypes.h or
 249  * stdint.h: currently just older VC++
 250  */
 251 typedef signed char int8_t;
 252 typedef unsigned char uint8_t;
 253 typedef short int16_t;
 254 typedef unsigned short uint16_t;
 255 typedef int int32_t;
 256 typedef unsigned int uint32_t;
 257 typedef __int64 int64_t;
 258 typedef unsigned __int64 uint64_t;
 259 # else
 260 #  include <stdint.h>
 261 # endif
 262
 263 /*
 264  * We need a format operator for some client tools for uint64_t.  If inttypes.h
 265  * isn't available or did not define it, just go with hard-coded.
 266  */
 267 # ifndef PRIu64
 268 #  ifdef SIXTY_FOUR_BIT_LONG
 269 #   define PRIu64 "lu"
 270 #  else
 271 #   define PRIu64 "llu"
 272 #  endif
 273 # endif
 274
 275 /* ossl_inline: portable inline definition usable in public headers */
 276 # if !defined(inline) && !defined(__cplusplus)
 277 #  if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
 278    /* just use inline */
 279 #   define ossl_inline inline
 280 #  elif defined(__GNUC__) && __GNUC__>=2
 281 #   define ossl_inline __inline__
 282 #  elif defined(_MSC_VER)
 283   /*
 284    * Visual Studio: inline is available in C++ only, however
 285    * __inline is available for C, see
 286    * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
 287    */
 288 #   define ossl_inline __inline
 289 #  else
 290 #   define ossl_inline
 291 #  endif
 292 # else
 293 #  define ossl_inline inline
 294 # endif
 295
 296 #ifdef  __cplusplus
 297 }
 298 #endif
 299 #endif