1/* e_os2.h */ 2/* ==================================================================== 3 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * openssl-core@openssl.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * (eay@cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh@cryptsoft.com). 53 * 54 */ 55 56#include <openssl/opensslconf.h> 57 58#ifndef HEADER_E_OS2_H 59#define HEADER_E_OS2_H 60 61#ifdef __cplusplus 62extern "C" { 63#endif 64 65/****************************************************************************** 66 * Detect operating systems. This probably needs completing. 67 * The result is that at least one OPENSSL_SYS_os macro should be defined. 68 * However, if none is defined, Unix is assumed. 69 **/ 70 71#define OPENSSL_SYS_UNIX 72 73/* ----------------------- Macintosh, before MacOS X ----------------------- */ 74#if defined(__MWERKS__) && defined(macintosh) || defined(OPENSSL_SYSNAME_MAC) 75# undef OPENSSL_SYS_UNIX 76# define OPENSSL_SYS_MACINTOSH_CLASSIC 77#endif 78 79/* ----------------------- NetWare ----------------------------------------- */ 80#if defined(NETWARE) || defined(OPENSSL_SYSNAME_NETWARE) 81# undef OPENSSL_SYS_UNIX 82# define OPENSSL_SYS_NETWARE 83#endif 84 85/* ---------------------- Microsoft operating systems ---------------------- */ 86 87/* Note that MSDOS actually denotes 32-bit environments running on top of 88 MS-DOS, such as DJGPP one. */ 89#if defined(OPENSSL_SYSNAME_MSDOS) 90# undef OPENSSL_SYS_UNIX 91# define OPENSSL_SYS_MSDOS 92#endif 93 94/* For 32 bit environment, there seems to be the CygWin environment and then 95 all the others that try to do the same thing Microsoft does... */ 96#if defined(OPENSSL_SYSNAME_UWIN) 97# undef OPENSSL_SYS_UNIX 98# define OPENSSL_SYS_WIN32_UWIN 99#else 100# if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32) 101# undef OPENSSL_SYS_UNIX 102# define OPENSSL_SYS_WIN32_CYGWIN 103# else 104# if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32) 105# undef OPENSSL_SYS_UNIX 106# define OPENSSL_SYS_WIN32 107# endif 108# if defined(OPENSSL_SYSNAME_WINNT) 109# undef OPENSSL_SYS_UNIX 110# define OPENSSL_SYS_WINNT 111# endif 112# if defined(OPENSSL_SYSNAME_WINCE) 113# undef OPENSSL_SYS_UNIX 114# define OPENSSL_SYS_WINCE 115# endif 116# endif 117#endif 118 119/* Anything that tries to look like Microsoft is "Windows" */ 120#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE) 121# undef OPENSSL_SYS_UNIX 122# define OPENSSL_SYS_WINDOWS 123# ifndef OPENSSL_SYS_MSDOS 124# define OPENSSL_SYS_MSDOS 125# endif 126#endif 127 128/* DLL settings. This part is a bit tough, because it's up to the application 129 implementor how he or she will link the application, so it requires some 130 macro to be used. */ 131#ifdef OPENSSL_SYS_WINDOWS 132# ifndef OPENSSL_OPT_WINDLL 133# if defined(_WINDLL) /* This is used when building OpenSSL to indicate that 134 DLL linkage should be used */ 135# define OPENSSL_OPT_WINDLL 136# endif 137# endif 138#endif 139 140/* -------------------------------- OpenVMS -------------------------------- */ 141#if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS) 142# undef OPENSSL_SYS_UNIX 143# define OPENSSL_SYS_VMS 144# if defined(__DECC) 145# define OPENSSL_SYS_VMS_DECC 146# elif defined(__DECCXX) 147# define OPENSSL_SYS_VMS_DECC 148# define OPENSSL_SYS_VMS_DECCXX 149# else 150# define OPENSSL_SYS_VMS_NODECC 151# endif 152#endif 153 154/* --------------------------------- OS/2 ---------------------------------- */ 155#if defined(__EMX__) || defined(__OS2__) 156# undef OPENSSL_SYS_UNIX 157# define OPENSSL_SYS_OS2 158#endif 159 160/* --------------------------------- Unix ---------------------------------- */ 161#ifdef OPENSSL_SYS_UNIX 162# if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX) 163# define OPENSSL_SYS_LINUX 164# endif 165# ifdef OPENSSL_SYSNAME_MPE 166# define OPENSSL_SYS_MPE 167# endif 168# ifdef OPENSSL_SYSNAME_SNI 169# define OPENSSL_SYS_SNI 170# endif 171# ifdef OPENSSL_SYSNAME_ULTRASPARC 172# define OPENSSL_SYS_ULTRASPARC 173# endif 174# ifdef OPENSSL_SYSNAME_NEWS4 175# define OPENSSL_SYS_NEWS4 176# endif 177# ifdef OPENSSL_SYSNAME_MACOSX 178# define OPENSSL_SYS_MACOSX 179# endif 180# ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY 181# define OPENSSL_SYS_MACOSX_RHAPSODY 182# define OPENSSL_SYS_MACOSX 183# endif 184# ifdef OPENSSL_SYSNAME_SUNOS 185# define OPENSSL_SYS_SUNOS 186#endif 187# if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY) 188# define OPENSSL_SYS_CRAY 189# endif 190# if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX) 191# define OPENSSL_SYS_AIX 192# endif 193#endif 194 195/* --------------------------------- VOS ----------------------------------- */ 196#ifdef OPENSSL_SYSNAME_VOS 197# define OPENSSL_SYS_VOS 198#endif 199 200/* ------------------------------- VxWorks --------------------------------- */ 201#ifdef OPENSSL_SYSNAME_VXWORKS 202# define OPENSSL_SYS_VXWORKS 203#endif 204 205/** 206 * That's it for OS-specific stuff 207 *****************************************************************************/ 208 209 210/* Specials for I/O an exit */ 211#ifdef OPENSSL_SYS_MSDOS 212# define OPENSSL_UNISTD_IO <io.h> 213# define OPENSSL_DECLARE_EXIT extern void exit(int); 214#else 215# define OPENSSL_UNISTD_IO OPENSSL_UNISTD 216# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */ 217#endif 218 219/* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare 220 certain global symbols that, with some compilers under VMS, have to be 221 defined and declared explicitely with globaldef and globalref. 222 Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare 223 DLL exports and imports for compilers under Win32. These are a little 224 more complicated to use. Basically, for any library that exports some 225 global variables, the following code must be present in the header file 226 that declares them, before OPENSSL_EXTERN is used: 227 228 #ifdef SOME_BUILD_FLAG_MACRO 229 # undef OPENSSL_EXTERN 230 # define OPENSSL_EXTERN OPENSSL_EXPORT 231 #endif 232 233 The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL 234 have some generally sensible values, and for OPENSSL_EXTERN to have the 235 value OPENSSL_IMPORT. 236*/ 237 238#if defined(OPENSSL_SYS_VMS_NODECC) 239# define OPENSSL_EXPORT globalref 240# define OPENSSL_IMPORT globalref 241# define OPENSSL_GLOBAL globaldef 242#elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL) 243# define OPENSSL_EXPORT extern __declspec(dllexport) 244# define OPENSSL_IMPORT extern __declspec(dllimport) 245# define OPENSSL_GLOBAL 246#else 247# define OPENSSL_EXPORT extern 248# define OPENSSL_IMPORT extern 249# define OPENSSL_GLOBAL 250#endif 251#define OPENSSL_EXTERN OPENSSL_IMPORT 252 253/* Macros to allow global variables to be reached through function calls when 254 required (if a shared library version requvres it, for example. 255 The way it's done allows definitions like this: 256 257 // in foobar.c 258 OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0; 259 // in foobar.h 260 OPENSSL_DECLARE_GLOBAL(int,foobar); 261 #define foobar OPENSSL_GLOBAL_REF(foobar) 262*/ 263#ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION 264# define OPENSSL_IMPLEMENT_GLOBAL(type,name) \ 265 extern type _hide_##name; \ 266 type *_shadow_##name(void) { return &_hide_##name; } \ 267 static type _hide_##name 268# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void) 269# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name())) 270#else 271# define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name 272# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name 273# define OPENSSL_GLOBAL_REF(name) _shadow_##name 274#endif 275 276#ifdef __cplusplus 277} 278#endif 279#endif 280