243 lines
8.5 KiB
C
243 lines
8.5 KiB
C
/* e_os2.h */
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/* ====================================================================
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* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef HEADER_E_OS2_H
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#define HEADER_E_OS2_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/******************************************************************************
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* Detect operating systems. This probably needs completing.
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* The result is that at least one OPENSSL_SYS_os macro should be defined.
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* However, if none is defined, Unix is assumed.
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**/
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#define OPENSSL_SYS_UNIX
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/* ----------------------- Macintosh, before MacOS X ----------------------- */
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#if defined(__MWERKS__) && defined(macintosh) || defined(OPENSSL_SYSNAME_MAC)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_MACINTOSH_CLASSIC
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#endif
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/* ---------------------- Microsoft operating systems ---------------------- */
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/* The 16 bit environments are pretty straightforward */
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#if defined(OPENSSL_SYSNAME_WIN16) || defined(OPENSSL_SYSNAME_MSDOS)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_MSDOS
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#endif
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#if defined(OPENSSL_SYSNAME_WIN16)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WIN16
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#endif
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/* For 32 bit environment, there seems to be the CygWin environment and then
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all the others that try to do the same thing Microsoft does... */
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#if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WIN32_CYGWIN
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#else
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# if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WIN32
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# endif
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# if defined(OPENSSL_SYSNAME_WINNT)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WINNT
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# endif
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#endif
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/* Anything that tries to look like Microsoft is "Windows" */
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#if defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WINDOWS
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# ifndef OPENSSL_SYS_MSDOS
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# define OPENSSL_SYS_MSDOS
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# endif
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#endif
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/* DLL settings. This part is a bit tough, because it's up to the application
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implementor how he or she will link the application, so it requires some
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macro to be used. */
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#ifdef OPENSSL_SYS_WINDOWS
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# ifndef OPENSSL_OPT_WINDLL
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# if defined(_WINDLL) /* This is used when building OpenSSL to indicate that
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DLL linkage should be used */
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# define OPENSSL_OPT_WINDLL
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# elif defined(_DLL) /* This one is used quite much in the VC++ header
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files */
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# define OPENSSL_OPT_WINDLL
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# endif
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# endif
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#endif
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/* -------------------------------- OpenVMS -------------------------------- */
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#if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_VMS
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# if defined(__DECC)
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# define OPENSSL_SYS_VMS_DECC
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# else
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# define OPENSSL_SYS_VMS_NODECC
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# endif
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#endif
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/* --------------------------------- Unix ---------------------------------- */
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#ifdef OPENSSL_SYS_UNIX
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# if defined(linus) || defined(OPENSSL_SYSNAME_LINUX)
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# define OPENSSL_SYS_LINUX
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# endif
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# ifdef OPENSSL_SYSNAME_MPE
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# define OPENSSL_SYS_MPE
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# endif
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# ifdef OPENSSL_SYSNAME_SNI
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# define OPENSSL_SYS_SNI
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# endif
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# ifdef OPENSSL_SYSNAME_ULTRASPARC
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# define OPENSSL_SYS_ULTRASPARC
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# endif
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# ifdef OPENSSL_SYSNAME_NEWS4
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# define OPENSSL_SYS_NEWS4
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# endif
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# ifdef OPENSSL_SYSNAME_MACOSX
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# define OPENSSL_SYS_MACOSX
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# endif
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# if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY)
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# define OPENSSL_SYS_CRAY
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# endif
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# if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX)
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# define OPENSSL_SYS_AIX
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# endif
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#endif
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/**
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* That's it for OS-specific stuff
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*****************************************************************************/
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/* Specials for I/O an exit */
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#ifdef OPENSSL_SYS_MSDOS
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# define OPENSSL_UNISTD_IO <io.h>
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# define OPENSSL_DECLARE_EXIT extern void exit(int);
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#else
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# define OPENSSL_UNISTD_IO OPENSSL_UNISTD
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# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
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#endif
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/* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare
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certain global symbols that, with some compilers under VMS, have to be
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defined and declared explicitely with globaldef and globalref.
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Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare
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DLL exports and imports for compilers under Win32. These are a little
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more complicated to use. Basically, for any library that exports some
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global variables, the following code must be present in the header file
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that declares them, before OPENSSL_EXTERN is used:
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#ifdef SOME_BUILD_FLAG_MACRO
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# undef OPENSSL_EXTERN
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# define OPENSSL_EXTERN OPENSSL_EXPORT
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#endif
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The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL
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have some generally sensible values, and for OPENSSL_EXTERN to have the
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value OPENSSL_IMPORT.
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*/
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#if defined(OPENSSL_SYS_VMS_NODECC)
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# define OPENSSL_EXPORT globalref
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# define OPENSSL_IMPORT globalref
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# define OPENSSL_GLOBAL globaldef
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#elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
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# define OPENSSL_EXPORT extern _declspec(dllexport)
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# define OPENSSL_IMPORT extern _declspec(dllimport)
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# define OPENSSL_GLOBAL
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#else
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# define OPENSSL_EXPORT extern
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# define OPENSSL_IMPORT extern
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# define OPENSSL_GLOBAL
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#endif
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#define OPENSSL_EXTERN OPENSSL_IMPORT
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/* Macros to allow global variables to be reached through function calls when
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required (if a shared library version requvres it, for example.
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The way it's done allows definitions like this:
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// in foobar.c
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OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0;
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// in foobar.h
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OPENSSL_DECLARE_GLOBAL(int,foobar);
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#define foobar OPENSSL_GLOBAL_REF(foobar)
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*/
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#ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
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# define OPENSSL_IMPLEMENT_GLOBAL(type,name) extern static type _hide_##name; \
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type *_shadow_##name(void) { static type local_var; return &local_var; } \
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static type _hide_##name
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# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
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# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
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#else
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# define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name
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# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
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# define OPENSSL_GLOBAL_REF(name) _shadow_##name
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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