/* 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

/* ---------------------- 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

/* ------------------------------- 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_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) static 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