X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=e_os2.h;h=ed90f222e2180c2c5b20cc5660cd8acfb69ad58a;hp=6f0c69396f8ea728495bb8e4d8cbf5cb97765ef1;hb=eb272ac0b07423a33f78e960dbe2c8abff06fdc6;hpb=2a4a0a340d507d0c64c842d669c37fbe263f3f60 diff --git a/e_os2.h b/e_os2.h index 6f0c69396f..ed90f222e2 100644 --- a/e_os2.h +++ b/e_os2.h @@ -1,4 +1,59 @@ /* 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 #ifndef HEADER_E_OS2_H #define HEADER_E_OS2_H @@ -7,34 +62,182 @@ 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 + +/* ---------------------- Microsoft operating systems ---------------------- */ + +/* The 16 bit environments are pretty straightforward */ +#if defined(OPENSSL_SYSNAME_WIN16) || defined(OPENSSL_SYSNAME_MSDOS) +# undef OPENSSL_SYS_UNIX +# define OPENSSL_SYS_MSDOS +#endif +#if defined(OPENSSL_SYSNAME_WIN16) +# undef OPENSSL_SYS_UNIX +# define OPENSSL_SYS_WIN16 +#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(__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 +#endif + +/* Anything that tries to look like Microsoft is "Windows" */ +#if defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) +# 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 +# elif defined(_DLL) /* This one is used quite much in the VC++ header + files */ +# define OPENSSL_OPT_WINDLL +# endif +# endif +#endif -#if defined(VMS) && !defined(__DECC) -# define OPENSSL_EXTERN globalref +/* -------------------------------- 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 +# else +# define OPENSSL_SYS_VMS_NODECC +# endif +#endif + +/* --------------------------------- Unix ---------------------------------- */ +#ifdef OPENSSL_SYS_UNIX +# if defined(linus) || 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 +# 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 + +/** + * That's it for OS-specific stuff + *****************************************************************************/ + + +/* Specials for I/O an exit */ +#ifdef OPENSSL_SYS_MSDOS +# define OPENSSL_UNISTD_IO +# 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 -/* 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 +/* 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 static type _hide_##name; \ + type *_shadow_##name(void) { static type local_var; return &local_var; } \ + 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 -