228 lines
7.0 KiB
C
228 lines
7.0 KiB
C
#include "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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/* ----------------------- NetWare ----------------------------------------- */
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#if defined(NETWARE) || defined(OPENSSL_SYSNAME_NETWARE)
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#undef OPENSSL_SYS_UNIX
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#define OPENSSL_SYS_NETWARE
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#endif
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/* ---------------------- Microsoft operating systems ---------------------- */
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/* Note that MSDOS actually denotes 32-bit environments running on top of
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MS-DOS, such as DJGPP one. */
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#if 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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/* 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(OPENSSL_SYSNAME_UWIN)
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#undef OPENSSL_SYS_UNIX
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#define OPENSSL_SYS_WIN32_UWIN
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#else
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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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#if defined(OPENSSL_SYSNAME_WINCE)
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#undef OPENSSL_SYS_UNIX
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#define OPENSSL_SYS_WINCE
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#endif
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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_WIN32) || defined(OPENSSL_SYS_WINNT) || \
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defined(OPENSSL_SYS_WINCE)
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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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#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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#elif defined(__DECCXX)
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#define OPENSSL_SYS_VMS_DECC
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#define OPENSSL_SYS_VMS_DECCXX
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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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/* --------------------------------- OS/2 ---------------------------------- */
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#if defined(__EMX__) || defined(__OS2__)
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#undef OPENSSL_SYS_UNIX
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#define OPENSSL_SYS_OS2
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#endif
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/* --------------------------------- Unix ---------------------------------- */
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#ifdef OPENSSL_SYS_UNIX
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#if defined(linux) || defined(__linux__) || 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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#ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY
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#define OPENSSL_SYS_MACOSX_RHAPSODY
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#define OPENSSL_SYS_MACOSX
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#endif
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#ifdef OPENSSL_SYSNAME_SUNOS
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#define OPENSSL_SYS_SUNOS
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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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/* --------------------------------- VOS ----------------------------------- */
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#ifdef OPENSSL_SYSNAME_VOS
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#define OPENSSL_SYS_VOS
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#endif
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/* ------------------------------- VxWorks --------------------------------- */
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#ifdef OPENSSL_SYSNAME_VXWORKS
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#define OPENSSL_SYS_VXWORKS
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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) \
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extern type _hide_##name; \
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type *_shadow_##name(void) \
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{ \
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return &_hide_##name; \
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} \
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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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