[thirdparty/openssl.git] / e_os2.h

/* e_os2.h */
/* ====================================================================
 * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <openssl/opensslconf.h>

#ifndef HEADER_E_OS2_H
#define HEADER_E_OS2_H

#ifdef  __cplusplus
extern "C" {
#endif

/******************************************************************************
 * Detect operating systems.  This probably needs completing.
 * The result is that at least one OPENSSL_SYS_os macro should be defined.
 * However, if none is defined, Unix is assumed.
 **/

#define OPENSSL_SYS_UNIX

/* ----------------------- Macintosh, before MacOS X ----------------------- */
#if defined(__MWERKS__) && defined(macintosh) || defined(OPENSSL_SYSNAME_MAC)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_MACINTOSH_CLASSIC
#endif

/* ----------------------- NetWare ----------------------------------------- */
#if defined(NETWARE) || defined(OPENSSL_SYSNAME_NETWARE)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_NETWARE
#endif

/* ---------------------- Microsoft operating systems ---------------------- */

/* The 16 bit environments are pretty straightforward */
#if defined(OPENSSL_SYSNAME_WIN16) || defined(OPENSSL_SYSNAME_MSDOS)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_MSDOS
#endif
#if defined(OPENSSL_SYSNAME_WIN16)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_WIN16
#endif

/* For 32 bit environment, there seems to be the CygWin environment and then
   all the others that try to do the same thing Microsoft does... */
#if defined(OPENSSL_SYSNAME_UWIN)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_WIN32_UWIN
#else
# if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
#  undef OPENSSL_SYS_UNIX
#  define OPENSSL_SYS_WIN32_CYGWIN
# else
#  if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32)
#   undef OPENSSL_SYS_UNIX
#   define OPENSSL_SYS_WIN32
#  endif
#  if defined(OPENSSL_SYSNAME_WINNT)
#   undef OPENSSL_SYS_UNIX
#   define OPENSSL_SYS_WINNT
#  endif
#  if defined(OPENSSL_SYSNAME_WINCE)
#   undef OPENSSL_SYS_UNIX
#   define OPENSSL_SYS_WINCE
#  endif
# endif
#endif

/* Anything that tries to look like Microsoft is "Windows" */
#if defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_WINDOWS
# ifndef OPENSSL_SYS_MSDOS
#  define OPENSSL_SYS_MSDOS
# endif
#endif

/* DLL settings.  This part is a bit tough, because it's up to the application
   implementor how he or she will link the application, so it requires some
   macro to be used. */
#ifdef OPENSSL_SYS_WINDOWS
# ifndef OPENSSL_OPT_WINDLL
#  if defined(_WINDLL) /* This is used when building OpenSSL to indicate that
                          DLL linkage should be used */
#   define OPENSSL_OPT_WINDLL
#  endif
# endif
#endif

/* -------------------------------- OpenVMS -------------------------------- */
#if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_VMS
# if defined(__DECC)
#  define OPENSSL_SYS_VMS_DECC
# elif defined(__DECCXX)
#  define OPENSSL_SYS_VMS_DECC
#  define OPENSSL_SYS_VMS_DECCXX
# else
#  define OPENSSL_SYS_VMS_NODECC
# endif
#endif

/* --------------------------------- OS/2 ---------------------------------- */
#if defined(__EMX__) || defined(__OS2__)
# undef OPENSSL_SYS_UNIX
# define OPENSSL_SYS_OS2
#endif

/* --------------------------------- Unix ---------------------------------- */
#ifdef OPENSSL_SYS_UNIX
# if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX)
#  define OPENSSL_SYS_LINUX
# endif
# ifdef OPENSSL_SYSNAME_MPE
#  define OPENSSL_SYS_MPE
# endif
# ifdef OPENSSL_SYSNAME_SNI
#  define OPENSSL_SYS_SNI
# endif
# ifdef OPENSSL_SYSNAME_ULTRASPARC
#  define OPENSSL_SYS_ULTRASPARC
# endif
# ifdef OPENSSL_SYSNAME_NEWS4
#  define OPENSSL_SYS_NEWS4
# endif
# ifdef OPENSSL_SYSNAME_MACOSX
#  define OPENSSL_SYS_MACOSX
# endif
# ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY
#  define OPENSSL_SYS_MACOSX_RHAPSODY
#  define OPENSSL_SYS_MACOSX
# endif
# ifdef OPENSSL_SYSNAME_SUNOS
#  define OPENSSL_SYS_SUNOS
#endif
# if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY)
#  define OPENSSL_SYS_CRAY
# endif
# if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX)
#  define OPENSSL_SYS_AIX
# endif
#endif

/* --------------------------------- VOS ----------------------------------- */
#ifdef OPENSSL_SYSNAME_VOS
# define OPENSSL_SYS_VOS
#endif

/* ------------------------------- VxWorks --------------------------------- */
#ifdef OPENSSL_SYSNAME_VXWORKS
# define OPENSSL_SYS_VXWORKS
#endif

/**
 * That's it for OS-specific stuff
 *****************************************************************************/


/* Specials for I/O an exit */
#ifdef OPENSSL_SYS_WIN16
# define OPENSSL_NO_FP_API
#endif
#ifdef OPENSSL_SYS_MSDOS
# define OPENSSL_UNISTD_IO <io.h>
# define OPENSSL_DECLARE_EXIT extern void exit(int);
#else
# define OPENSSL_UNISTD_IO OPENSSL_UNISTD
# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
#endif

/* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
   certain global symbols that, with some compilers under VMS, have to be
   defined and declared explicitely with globaldef and globalref.
   Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
   DLL exports and imports for compilers under Win32.  These are a little
   more complicated to use.  Basically, for any library that exports some
   global variables, the following code must be present in the header file
   that declares them, before OPENSSL_EXTERN is used:

   #ifdef SOME_BUILD_FLAG_MACRO
   # undef OPENSSL_EXTERN
   # define OPENSSL_EXTERN OPENSSL_EXPORT
   #endif

   The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
   have some generally sensible values, and for OPENSSL_EXTERN to have the
   value OPENSSL_IMPORT.
*/

#if defined(OPENSSL_SYS_VMS_NODECC)
# define OPENSSL_EXPORT globalref
# define OPENSSL_IMPORT globalref
# define OPENSSL_GLOBAL globaldef
#elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
# define OPENSSL_EXPORT extern __declspec(dllexport)
# define OPENSSL_IMPORT extern __declspec(dllimport)
# define OPENSSL_GLOBAL
#else
# define OPENSSL_EXPORT extern
# define OPENSSL_IMPORT extern
# define OPENSSL_GLOBAL
#endif
#define OPENSSL_EXTERN OPENSSL_IMPORT

/* Macros to allow global variables to be reached through function calls when
   required (if a shared library version requvres it, for example.
   The way it's done allows definitions like this:

	// in foobar.c
	OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0;
	// in foobar.h
	OPENSSL_DECLARE_GLOBAL(int,foobar);
	#define foobar OPENSSL_GLOBAL_REF(foobar)
*/
#ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
# define OPENSSL_IMPLEMENT_GLOBAL(type,name)			     \
	extern type _hide_##name;				     \
	type *_shadow_##name(void) { return &_hide_##name; }	     \
	static type _hide_##name
# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
#else
# define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name
# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
# define OPENSSL_GLOBAL_REF(name) _shadow_##name
#endif

#ifdef  __cplusplus
}
#endif
#endif
Commit	Line	Data
2a4a0a34	1	/* e_os2.h */
cf1b7d96 RL	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	*/
2a4a0a34	55
1961b327 RL	56	#include <openssl/opensslconf.h>
1961b327 RL	57
2a4a0a34 BM	58	#ifndef HEADER_E_OS2_H
	59	#define HEADER_E_OS2_H
	60
	61	#ifdef __cplusplus
	62	extern "C" {
	63	#endif
	64
cf1b7d96 RL	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
4d8743f4 RL	79	/* ----------------------- NetWare ----------------------------------------- */
	80	#if defined(NETWARE) \|\| defined(OPENSSL_SYSNAME_NETWARE)
	81	# undef OPENSSL_SYS_UNIX
	82	# define OPENSSL_SYS_NETWARE
	83	#endif
	84
cf1b7d96 RL	85	/* ---------------------- Microsoft operating systems ---------------------- */
	86
	87	/* The 16 bit environments are pretty straightforward */
	88	#if defined(OPENSSL_SYSNAME_WIN16) \|\| defined(OPENSSL_SYSNAME_MSDOS)
	89	# undef OPENSSL_SYS_UNIX
	90	# define OPENSSL_SYS_MSDOS
	91	#endif
	92	#if defined(OPENSSL_SYSNAME_WIN16)
	93	# undef OPENSSL_SYS_UNIX
	94	# define OPENSSL_SYS_WIN16
	95	#endif
	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... */
c69d1039	99	#if defined(OPENSSL_SYSNAME_UWIN)
cf1b7d96	100	# undef OPENSSL_SYS_UNIX
c69d1039	101	# define OPENSSL_SYS_WIN32_UWIN
cf1b7d96	102	#else
c69d1039	103	# if defined(__CYGWIN32__) \|\| defined(OPENSSL_SYSNAME_CYGWIN32)
cf1b7d96	104	# undef OPENSSL_SYS_UNIX
c69d1039 RL	105	# define OPENSSL_SYS_WIN32_CYGWIN
	106	# else
	107	# if defined(_WIN32) \|\| defined(OPENSSL_SYSNAME_WIN32)
	108	# undef OPENSSL_SYS_UNIX
	109	# define OPENSSL_SYS_WIN32
	110	# endif
	111	# if defined(OPENSSL_SYSNAME_WINNT)
	112	# undef OPENSSL_SYS_UNIX
	113	# define OPENSSL_SYS_WINNT
	114	# endif
0bf23d9b RL	115	# if defined(OPENSSL_SYSNAME_WINCE)
	116	# undef OPENSSL_SYS_UNIX
	117	# define OPENSSL_SYS_WINCE
	118	# endif
cf1b7d96 RL	119	# endif
	120	#endif
	121
	122	/* Anything that tries to look like Microsoft is "Windows" */
0bf23d9b	123	#if defined(OPENSSL_SYS_WIN16) \|\| defined(OPENSSL_SYS_WIN32) \|\| defined(OPENSSL_SYS_WINNT) \|\| defined(OPENSSL_SYS_WINCE)
cf1b7d96 RL	124	# undef OPENSSL_SYS_UNIX
cf1b7d96 RL	125	# define OPENSSL_SYS_WINDOWS
1961b327 RL	126	# ifndef OPENSSL_SYS_MSDOS
	127	# define OPENSSL_SYS_MSDOS
	128	# endif
cf1b7d96 RL	129	#endif
cf1b7d96 RL	130
5cac59b6 RL	131	/* DLL settings. This part is a bit tough, because it's up to the application
	132	implementor how he or she will link the application, so it requires some
	133	macro to be used. */
	134	#ifdef OPENSSL_SYS_WINDOWS
	135	# ifndef OPENSSL_OPT_WINDLL
	136	# if defined(_WINDLL) /* This is used when building OpenSSL to indicate that
	137	DLL linkage should be used */
	138	# define OPENSSL_OPT_WINDLL
5cac59b6 RL	139	# endif
	140	# endif
	141	#endif
	142
cf1b7d96 RL	143	/* -------------------------------- OpenVMS -------------------------------- */
	144	#if defined(__VMS) \|\| defined(VMS) \|\| defined(OPENSSL_SYSNAME_VMS)
	145	# undef OPENSSL_SYS_UNIX
	146	# define OPENSSL_SYS_VMS
	147	# if defined(__DECC)
	148	# define OPENSSL_SYS_VMS_DECC
d8425465 RL	149	# elif defined(__DECCXX)
	150	# define OPENSSL_SYS_VMS_DECC
	151	# define OPENSSL_SYS_VMS_DECCXX
cf1b7d96 RL	152	# else
	153	# define OPENSSL_SYS_VMS_NODECC
	154	# endif
	155	#endif
	156
dc01b6b1 RL	157	/* --------------------------------- OS/2 ---------------------------------- */
	158	#if defined(__EMX__) \|\| defined(__OS2__)
	159	# undef OPENSSL_SYS_UNIX
	160	# define OPENSSL_SYS_OS2
	161	#endif
	162
cf1b7d96 RL	163	/* --------------------------------- Unix ---------------------------------- */
cf1b7d96 RL	164	#ifdef OPENSSL_SYS_UNIX
1a19f83d	165	# if defined(linux) \|\| defined(__linux__) \|\| defined(OPENSSL_SYSNAME_LINUX)
cf1b7d96 RL	166	# define OPENSSL_SYS_LINUX
	167	# endif
	168	# ifdef OPENSSL_SYSNAME_MPE
	169	# define OPENSSL_SYS_MPE
	170	# endif
	171	# ifdef OPENSSL_SYSNAME_SNI
	172	# define OPENSSL_SYS_SNI
	173	# endif
	174	# ifdef OPENSSL_SYSNAME_ULTRASPARC
	175	# define OPENSSL_SYS_ULTRASPARC
	176	# endif
	177	# ifdef OPENSSL_SYSNAME_NEWS4
	178	# define OPENSSL_SYS_NEWS4
	179	# endif
	180	# ifdef OPENSSL_SYSNAME_MACOSX
	181	# define OPENSSL_SYS_MACOSX
	182	# endif
832f9304 RL	183	# ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY
	184	# define OPENSSL_SYS_MACOSX_RHAPSODY
	185	# define OPENSSL_SYS_MACOSX
	186	# endif
0709385d RL	187	# ifdef OPENSSL_SYSNAME_SUNOS
	188	# define OPENSSL_SYS_SUNOS
	189	#endif
cf1b7d96 RL	190	# if defined(_CRAY) \|\| defined(OPENSSL_SYSNAME_CRAY)
	191	# define OPENSSL_SYS_CRAY
	192	# endif
	193	# if defined(_AIX) \|\| defined(OPENSSL_SYSNAME_AIX)
	194	# define OPENSSL_SYS_AIX
	195	# endif
	196	#endif
	197
28a80034 RL	198	/* --------------------------------- VOS ----------------------------------- */
	199	#ifdef OPENSSL_SYSNAME_VOS
	200	# define OPENSSL_SYS_VOS
	201	#endif
	202
6a89a25c RL	203	/* ------------------------------- VxWorks --------------------------------- */
	204	#ifdef OPENSSL_SYSNAME_VXWORKS
	205	# define OPENSSL_SYS_VXWORKS
	206	#endif
	207
cf1b7d96 RL	208	/**
	209	* That's it for OS-specific stuff
	210	*****************************************************************************/
	211
	212
	213	/* Specials for I/O an exit */
abfc6a3a	214	#ifdef OPENSSL_SYS_WIN16
d4a47a57	215	# define OPENSSL_NO_FP_API
abfc6a3a RL	216	#endif
abfc6a3a RL	217	#ifdef OPENSSL_SYS_MSDOS
e766a681 BM	218	# define OPENSSL_UNISTD_IO <io.h>
	219	# define OPENSSL_DECLARE_EXIT extern void exit(int);
	220	#else
	221	# define OPENSSL_UNISTD_IO OPENSSL_UNISTD
	222	# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
	223	#endif
	224
21cd4378 RL	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	*/
2a4a0a34	243
cf1b7d96	244	#if defined(OPENSSL_SYS_VMS_NODECC)
21cd4378 RL	245	# define OPENSSL_EXPORT globalref
21cd4378 RL	246	# define OPENSSL_IMPORT globalref
2a4a0a34	247	# define OPENSSL_GLOBAL globaldef
5cac59b6	248	#elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
4f1c33b4 AP	249	# define OPENSSL_EXPORT extern __declspec(dllexport)
4f1c33b4 AP	250	# define OPENSSL_IMPORT extern __declspec(dllimport)
21cd4378	251	# define OPENSSL_GLOBAL
2a4a0a34	252	#else
21cd4378 RL	253	# define OPENSSL_EXPORT extern
21cd4378 RL	254	# define OPENSSL_IMPORT extern
2a4a0a34 BM	255	# define OPENSSL_GLOBAL
2a4a0a34 BM	256	#endif
21cd4378	257	#define OPENSSL_EXTERN OPENSSL_IMPORT
2a4a0a34	258
62dc5aad RL	259	/* Macros to allow global variables to be reached through function calls when
	260	required (if a shared library version requvres it, for example.
	261	The way it's done allows definitions like this:
	262
	263	// in foobar.c
	264	OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0;
	265	// in foobar.h
	266	OPENSSL_DECLARE_GLOBAL(int,foobar);
	267	#define foobar OPENSSL_GLOBAL_REF(foobar)
	268	*/
	269	#ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
45918505	270	# define OPENSSL_IMPLEMENT_GLOBAL(type,name) \
c05a7f5d	271	extern type _hide_##name; \
45918505 RL	272	type *_shadow_##name(void) { return &_hide_##name; } \
45918505 RL	273	static type _hide_##name
62dc5aad RL	274	# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
	275	# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
	276	#else
	277	# define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name
	278	# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
	279	# define OPENSSL_GLOBAL_REF(name) _shadow_##name
	280	#endif
	281
2a4a0a34 BM	282	#ifdef __cplusplus
	283	}
	284	#endif
	285	#endif