/* 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
extern "C" {
#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. On other OS:es,
- these macros are defined with something sensible. */
+/******************************************************************************
+ * 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
-#if defined(VMS) && !defined(__DECC)
-# define OPENSSL_EXTERN globalref
+/* --------------------------------- 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_EXTERN extern
+# 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:
-/* The above definitions should be used throughout the library,
- * but as long as EXTERN and GLOBAL occur there, we keep the following
- * definitions, too: */
-#if defined(VMS) && !defined(__DECC)
-# define EXTERN globalref
-# define GLOBAL globaldef
+ // 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 EXTERN extern
-# define GLOBAL
+# 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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