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/* 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