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 /* ---------------------- Macintosh, before MacOS X ----------------------- */
  74 # if defined(__MWERKS__) && defined(macintosh) || defined(OPENSSL_SYSNAME_MAC)
  75 #  undef OPENSSL_SYS_UNIX
  76 #  define OPENSSL_SYS_MACINTOSH_CLASSIC
  77 # endif
  78
  79 /* ---------------------- NetWare ----------------------------------------- */
  80 # if defined(NETWARE) || defined(OPENSSL_SYSNAME_NETWARE)
  81 #  undef OPENSSL_SYS_UNIX
  82 #  define OPENSSL_SYS_NETWARE
  83 # endif
  84
  85 /* --------------------- Microsoft operating systems ---------------------- */
  86
  87 /*
  88  * Note that MSDOS actually denotes 32-bit environments running on top of
  89  * MS-DOS, such as DJGPP one.
  90  */
  91 # if defined(OPENSSL_SYSNAME_MSDOS)
  92 #  undef OPENSSL_SYS_UNIX
  93 #  define OPENSSL_SYS_MSDOS
  94 # endif
  95
  96 /*
  97  * For 32 bit environment, there seems to be the CygWin environment and then
  98  * all the others that try to do the same thing Microsoft does...
  99  */
 100 # if defined(OPENSSL_SYSNAME_UWIN)
 101 #  undef OPENSSL_SYS_UNIX
 102 #  define OPENSSL_SYS_WIN32_UWIN
 103 # else
 104 #  if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
 105 #   undef OPENSSL_SYS_UNIX
 106 #   define OPENSSL_SYS_WIN32_CYGWIN
 107 #  else
 108 #   if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32)
 109 #    undef OPENSSL_SYS_UNIX
 110 #    define OPENSSL_SYS_WIN32
 111 #   endif
 112 #   if defined(OPENSSL_SYSNAME_WINNT)
 113 #    undef OPENSSL_SYS_UNIX
 114 #    define OPENSSL_SYS_WINNT
 115 #   endif
 116 #   if defined(OPENSSL_SYSNAME_WINCE)
 117 #    undef OPENSSL_SYS_UNIX
 118 #    define OPENSSL_SYS_WINCE
 119 #   endif
 120 #  endif
 121 # endif
 122
 123 /* Anything that tries to look like Microsoft is "Windows" */
 124 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
 125 #  undef OPENSSL_SYS_UNIX
 126 #  define OPENSSL_SYS_WINDOWS
 127 #  ifndef OPENSSL_SYS_MSDOS
 128 #   define OPENSSL_SYS_MSDOS
 129 #  endif
 130 # endif
 131
 132 /*
 133  * DLL settings.  This part is a bit tough, because it's up to the
 134  * application implementor how he or she will link the application, so it
 135  * requires some macro to be used.
 136  */
 137 # ifdef OPENSSL_SYS_WINDOWS
 138 #  ifndef OPENSSL_OPT_WINDLL
 139 #   if defined(_WINDLL)         /* This is used when building OpenSSL to
 140                                  * indicate that DLL linkage should be used */
 141 #    define OPENSSL_OPT_WINDLL
 142 #   endif
 143 #  endif
 144 # endif
 145
 146 /* ------------------------------- OpenVMS -------------------------------- */
 147 # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS)
 148 #  undef OPENSSL_SYS_UNIX
 149 #  define OPENSSL_SYS_VMS
 150 #  if defined(__DECC)
 151 #   define OPENSSL_SYS_VMS_DECC
 152 #  elif defined(__DECCXX)
 153 #   define OPENSSL_SYS_VMS_DECC
 154 #   define OPENSSL_SYS_VMS_DECCXX
 155 #  else
 156 #   define OPENSSL_SYS_VMS_NODECC
 157 #  endif
 158 # endif
 159
 160 /* -------------------------------- OS/2 ---------------------------------- */
 161 # if defined(__EMX__) || defined(__OS2__)
 162 #  undef OPENSSL_SYS_UNIX
 163 #  define OPENSSL_SYS_OS2
 164 # endif
 165
 166 /* -------------------------------- Unix ---------------------------------- */
 167 # ifdef OPENSSL_SYS_UNIX
 168 #  if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX)
 169 #   define OPENSSL_SYS_LINUX
 170 #  endif
 171 #  ifdef OPENSSL_SYSNAME_MPE
 172 #   define OPENSSL_SYS_MPE
 173 #  endif
 174 #  ifdef OPENSSL_SYSNAME_SNI
 175 #   define OPENSSL_SYS_SNI
 176 #  endif
 177 #  ifdef OPENSSL_SYSNAME_ULTRASPARC
 178 #   define OPENSSL_SYS_ULTRASPARC
 179 #  endif
 180 #  ifdef OPENSSL_SYSNAME_NEWS4
 181 #   define OPENSSL_SYS_NEWS4
 182 #  endif
 183 #  ifdef OPENSSL_SYSNAME_MACOSX
 184 #   define OPENSSL_SYS_MACOSX
 185 #  endif
 186 #  ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY
 187 #   define OPENSSL_SYS_MACOSX_RHAPSODY
 188 #   define OPENSSL_SYS_MACOSX
 189 #  endif
 190 #  ifdef OPENSSL_SYSNAME_SUNOS
 191 #   define OPENSSL_SYS_SUNOS
 192 #  endif
 193 #  if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY)
 194 #   define OPENSSL_SYS_CRAY
 195 #  endif
 196 #  if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX)
 197 #   define OPENSSL_SYS_AIX
 198 #  endif
 199 # endif
 200
 201 /* -------------------------------- VOS ----------------------------------- */
 202 # ifdef OPENSSL_SYSNAME_VOS
 203 #  define OPENSSL_SYS_VOS
 204 # endif
 205
 206 /* ------------------------------ VxWorks --------------------------------- */
 207 # ifdef OPENSSL_SYSNAME_VXWORKS
 208 #  define OPENSSL_SYS_VXWORKS
 209 # endif
 210
 211 /**
 212  * That's it for OS-specific stuff
 213  *****************************************************************************/
 214
 215 /* Specials for I/O an exit */
 216 # ifdef OPENSSL_SYS_MSDOS
 217 #  define OPENSSL_UNISTD_IO <io.h>
 218 #  define OPENSSL_DECLARE_EXIT extern void exit(int);
 219 # else
 220 #  define OPENSSL_UNISTD_IO OPENSSL_UNISTD
 221 #  define OPENSSL_DECLARE_EXIT  /* declared in unistd.h */
 222 # endif
 223
 224 /*-
 225  * Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
 226  * certain global symbols that, with some compilers under VMS, have to be
 227  * defined and declared explicitely with globaldef and globalref.
 228  * Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
 229  * DLL exports and imports for compilers under Win32.  These are a little
 230  * more complicated to use.  Basically, for any library that exports some
 231  * global variables, the following code must be present in the header file
 232  * that declares them, before OPENSSL_EXTERN is used:
 233  *
 234  * #ifdef SOME_BUILD_FLAG_MACRO
 235  * # undef OPENSSL_EXTERN
 236  * # define OPENSSL_EXTERN OPENSSL_EXPORT
 237  * #endif
 238  *
 239  * The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
 240  * have some generally sensible values, and for OPENSSL_EXTERN to have the
 241  * value OPENSSL_IMPORT.
 242  */
 243
 244 # if defined(OPENSSL_SYS_VMS_NODECC)
 245 #  define OPENSSL_EXPORT globalref
 246 #  define OPENSSL_IMPORT globalref
 247 #  define OPENSSL_GLOBAL globaldef
 248 # elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
 249 #  define OPENSSL_EXPORT extern __declspec(dllexport)
 250 #  define OPENSSL_IMPORT extern __declspec(dllimport)
 251 #  define OPENSSL_GLOBAL
 252 # else
 253 #  define OPENSSL_EXPORT extern
 254 #  define OPENSSL_IMPORT extern
 255 #  define OPENSSL_GLOBAL
 256 # endif
 257 # define OPENSSL_EXTERN OPENSSL_IMPORT
 258
 259 /*-
 260  * Macros to allow global variables to be reached through function calls when
 261  * required (if a shared library version requires it, for example.
 262  * The way it's done allows definitions like this:
 263  *
 264  *      // in foobar.c
 265  *      OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0)
 266  *      // in foobar.h
 267  *      OPENSSL_DECLARE_GLOBAL(int,foobar);
 268  *      #define foobar OPENSSL_GLOBAL_REF(foobar)
 269  */
 270 # ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
 271 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name)                         \
 272         extern type _hide_##name;                                    \
 273         type *_shadow_##name(void) { return &_hide_##name; }         \
 274         static type _hide_##name
 275 #  define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
 276 #  define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
 277 # else
 278 #  define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name
 279 #  define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
 280 #  define OPENSSL_GLOBAL_REF(name) _shadow_##name
 281 # endif
 282
 283 #ifdef  __cplusplus
 284 }
 285 #endif
 286 #endif