text: /* 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 ---------------------- */
  
  /* Note that MSDOS actually denotes 32-bit environments running on top of
     MS-DOS, such as DJGPP one. */
  #if defined(OPENSSL_SYSNAME_MSDOS)
  # undef OPENSSL_SYS_UNIX
  # define OPENSSL_SYS_MSDOS
  #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_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 ----------------------------------- */
  #if defined(__VOS__) || defined(OPENSSL_SYSNAME_VOS)
  # define OPENSSL_SYS_VOS
  #ifdef __HPPA__
  # define OPENSSL_SYS_VOS_HPPA
  #endif
  #ifdef __IA32__
  # define OPENSSL_SYS_VOS_IA32
  #endif
  #endif
  
  /* ------------------------------- VxWorks --------------------------------- */
  #ifdef OPENSSL_SYSNAME_VXWORKS
  # define OPENSSL_SYS_VXWORKS
  #endif
  
  /* --------------------------------- BeOS ---------------------------------- */
  #if defined(__BEOS__)
  # define OPENSSL_SYS_BEOS
  # include <sys/socket.h>
  # if defined(BONE_VERSION)
  #  define OPENSSL_SYS_BEOS_BONE
  # else
  #  define OPENSSL_SYS_BEOS_R5
  # endif
  #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 requires 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,value)			\
  	type *_shadow_##name(void)					\
  	{ static type _hide_##name=value; return &_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,value) OPENSSL_GLOBAL type _shadow_##name=value;
  # define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
  # define OPENSSL_GLOBAL_REF(name) _shadow_##name
  #endif
  
  #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC) && macintosh==1 && !defined(MAC_OS_GUSI_SOURCE)
  #  define ossl_ssize_t long
  #endif
  
  #ifdef OPENSSL_SYS_MSDOS
  #  define ossl_ssize_t long
  #endif
  
  #if defined(NeXT) || defined(OPENSSL_SYS_NEWS4) || defined(OPENSSL_SYS_SUNOS)
  #  define ssize_t int
  #endif
  
  #if defined(__ultrix) && !defined(ssize_t)
  #  define ossl_ssize_t int 
  #endif
  
  #ifndef ossl_ssize_t
  #  define ossl_ssize_t ssize_t
  #endif
  
  #ifdef  __cplusplus
  }
  #endif
  #endif
  