e_os2.h

   1 /* e_os2.h */
   2 /* ====================================================================
   3  * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    openssl-core@openssl.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  * This product includes cryptographic software written by Eric Young
  51  * (eay@cryptsoft.com).  This product includes software written by Tim
  52  * Hudson (tjh@cryptsoft.com).
  53  *
  54  */
  55
  56 #include <openssl/opensslconf.h>
  57
  58 #ifndef HEADER_E_OS2_H
  59 # define HEADER_E_OS2_H
  60
  61 #ifdef  __cplusplus
  62 extern "C" {
  63 #endif
  64
  65 /******************************************************************************
  66  * Detect operating systems.  This probably needs completing.
  67  * The result is that at least one OPENSSL_SYS_os macro should be defined.
  68  * However, if none is defined, Unix is assumed.
  69  **/
  70
  71 # define OPENSSL_SYS_UNIX
  72
  73 /* ---------------------- NetWare ----------------------------------------- */
  74 # if defined(NETWARE) && !defined(OPENSSL_SYS_NETWARE)
  75 #  undef OPENSSL_SYS_UNIX
  76 #  define OPENSSL_SYS_NETWARE
  77 # endif
  78
  79 /* --------------------- Microsoft operating systems ---------------------- */
  80
  81 /*
  82  * Note that MSDOS actually denotes 32-bit environments running on top of
  83  * MS-DOS, such as DJGPP one.
  84  */
  85 # if defined(OPENSSL_SYS_MSDOS)
  86 #  undef OPENSSL_SYS_UNIX
  87 # endif
  88
  89 /*
  90  * For 32 bit environment, there seems to be the CygWin environment and then
  91  * all the others that try to do the same thing Microsoft does...
  92  */
  93 # if defined(OPENSSL_SYS_UWIN)
  94 #  undef OPENSSL_SYS_UNIX
  95 #  define OPENSSL_SYS_WIN32_UWIN
  96 # else
  97 #  if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
  98 #   undef OPENSSL_SYS_UNIX
  99 #   define OPENSSL_SYS_WIN32_CYGWIN
 100 #  else
 101 #   if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
 102 #    undef OPENSSL_SYS_UNIX
 103 #    if !defined(OPENSSL_SYS_WIN32)
 104 #     define OPENSSL_SYS_WIN32
 105 #    endif
 106 #   endif
 107 #   if defined(OPENSSL_SYS_WINNT)
 108 #    undef OPENSSL_SYS_UNIX
 109 #   endif
 110 #   if defined(OPENSSL_SYS_WINCE)
 111 #    undef OPENSSL_SYS_UNIX
 112 #   endif
 113 #  endif
 114 # endif
 115
 116 /* Anything that tries to look like Microsoft is "Windows" */
 117 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
 118 #  undef OPENSSL_SYS_UNIX
 119 #  define OPENSSL_SYS_WINDOWS
 120 #  ifndef OPENSSL_SYS_MSDOS
 121 #   define OPENSSL_SYS_MSDOS
 122 #  endif
 123 # endif
 124
 125 /*
 126  * DLL settings.  This part is a bit tough, because it's up to the
 127  * application implementor how he or she will link the application, so it
 128  * requires some macro to be used.
 129  */
 130 # ifdef OPENSSL_SYS_WINDOWS
 131 #  ifndef OPENSSL_OPT_WINDLL
 132 #   if defined(_WINDLL)         /* This is used when building OpenSSL to
 133                                  * indicate that DLL linkage should be used */
 134 #    define OPENSSL_OPT_WINDLL
 135 #   endif
 136 #  endif
 137 # endif
 138
 139 /* ------------------------------- OpenVMS -------------------------------- */
 140 # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS)
 141 #  if !defined(OPENSSL_SYS_VMS)
 142 #   undef OPENSSL_SYS_UNIX
 143 #  endif
 144 #  define OPENSSL_SYS_VMS
 145 #  if defined(__DECC)
 146 #   define OPENSSL_SYS_VMS_DECC
 147 #  elif defined(__DECCXX)
 148 #   define OPENSSL_SYS_VMS_DECC
 149 #   define OPENSSL_SYS_VMS_DECCXX
 150 #  else
 151 #   define OPENSSL_SYS_VMS_NODECC
 152 #  endif
 153 # endif
 154
 155 /* -------------------------------- OS/2 ---------------------------------- */
 156 # if defined(__EMX__) || defined(__OS2__)
 157 #  undef OPENSSL_SYS_UNIX
 158 #  define OPENSSL_SYS_OS2
 159 # endif
 160
 161 /* -------------------------------- Unix ---------------------------------- */
 162 # ifdef OPENSSL_SYS_UNIX
 163 #  if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
 164 #   define OPENSSL_SYS_LINUX
 165 #  endif
 166 #  if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
 167 #   define OPENSSL_SYS_AIX
 168 #  endif
 169 # endif
 170
 171 /* -------------------------------- VOS ----------------------------------- */
 172 # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
 173 #  define OPENSSL_SYS_VOS
 174 #  ifdef __HPPA__
 175 #   define OPENSSL_SYS_VOS_HPPA
 176 #  endif
 177 #  ifdef __IA32__
 178 #   define OPENSSL_SYS_VOS_IA32
 179 #  endif
 180 # endif
 181
 182 /**
 183  * That's it for OS-specific stuff
 184  *****************************************************************************/
 185
 186 /* Specials for I/O an exit */
 187 # ifdef OPENSSL_SYS_MSDOS
 188 #  define OPENSSL_UNISTD_IO <io.h>
 189 #  define OPENSSL_DECLARE_EXIT extern void exit(int);
 190 # else
 191 #  define OPENSSL_UNISTD_IO OPENSSL_UNISTD
 192 #  define OPENSSL_DECLARE_EXIT  /* declared in unistd.h */
 193 # endif
 194
 195 /*-
 196  * Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
 197  * certain global symbols that, with some compilers under VMS, have to be
 198  * defined and declared explicitely with globaldef and globalref.
 199  * Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
 200  * DLL exports and imports for compilers under Win32.  These are a little
 201  * more complicated to use.  Basically, for any library that exports some
 202  * global variables, the following code must be present in the header file
 203  * that declares them, before OPENSSL_EXTERN is used:
 204  *
 205  * #ifdef SOME_BUILD_FLAG_MACRO
 206  * # undef OPENSSL_EXTERN
 207  * # define OPENSSL_EXTERN OPENSSL_EXPORT
 208  * #endif
 209  *
 210  * The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
 211  * have some generally sensible values, and for OPENSSL_EXTERN to have the
 212  * value OPENSSL_IMPORT.
 213  */
 214
 215 # if defined(OPENSSL_SYS_VMS_NODECC)
 216 #  define OPENSSL_EXPORT globalref
 217 #  define OPENSSL_IMPORT globalref
 218 #  define OPENSSL_GLOBAL globaldef
 219 # elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
 220 #  define OPENSSL_EXPORT extern __declspec(dllexport)
 221 #  define OPENSSL_IMPORT extern __declspec(dllimport)
 222 #  define OPENSSL_GLOBAL
 223 # else
 224 #  define OPENSSL_EXPORT extern
 225 #  define OPENSSL_IMPORT extern
 226 #  define OPENSSL_GLOBAL
 227 # endif
 228 # define OPENSSL_EXTERN OPENSSL_IMPORT
 229
 230 /*-
 231  * Macros to allow global variables to be reached through function calls when
 232  * required (if a shared library version requires it, for example.
 233  * The way it's done allows definitions like this:
 234  *
 235  *      // in foobar.c
 236  *      OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0)
 237  *      // in foobar.h
 238  *      OPENSSL_DECLARE_GLOBAL(int,foobar);
 239  *      #define foobar OPENSSL_GLOBAL_REF(foobar)
 240  */
 241 # ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
 242 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name,value)                      \
 243         type *_shadow_##name(void)                                      \
 244         { static type _hide_##name=value; return &_hide_##name; }
 245 #  define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
 246 #  define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
 247 # else
 248 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) OPENSSL_GLOBAL type _shadow_##name=value;
 249 #  define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
 250 #  define OPENSSL_GLOBAL_REF(name) _shadow_##name
 251 # endif
 252
 253 # ifdef OPENSSL_SYS_MSDOS
 254 #  define ossl_ssize_t long
 255 # endif
 256
 257 # if defined(__ultrix) && !defined(ssize_t)
 258 #  define ossl_ssize_t int
 259 # endif
 260
 261 # ifndef ossl_ssize_t
 262 #  define ossl_ssize_t ssize_t
 263 # endif
 264
 265 # ifdef DEBUG_UNUSED
 266 #  define __owur __attribute__((__warn_unused_result__))
 267 # else
 268 #  define __owur
 269 # endif
 270
 271 #ifdef  __cplusplus
 272 }
 273 #endif
 274 #endif