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openssl/e_os2.h
Andy Polyakov c510eec090 Put back OPENSSL_SYS_MSDOS definition to revive DJGPP built. 
PR: 1247
2005-12-18 18:55:55 +00:00

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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 ----------------------------------- */
#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_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
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