e_os2.h revision 142425
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/* ---------------------- Microsoft operating systems ---------------------- */ 80 81/* The 16 bit environments are pretty straightforward */ 82#if defined(OPENSSL_SYSNAME_WIN16) || defined(OPENSSL_SYSNAME_MSDOS) 83# undef OPENSSL_SYS_UNIX 84# define OPENSSL_SYS_MSDOS 85#endif 86#if defined(OPENSSL_SYSNAME_WIN16) 87# undef OPENSSL_SYS_UNIX 88# define OPENSSL_SYS_WIN16 89#endif 90 91/* For 32 bit environment, there seems to be the CygWin environment and then 92 all the others that try to do the same thing Microsoft does... */ 93#if defined(OPENSSL_SYSNAME_UWIN) 94# undef OPENSSL_SYS_UNIX 95# define OPENSSL_SYS_WIN32_UWIN 96#else 97# if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32) 98# undef OPENSSL_SYS_UNIX 99# define OPENSSL_SYS_WIN32_CYGWIN 100# else 101# if defined(_WIN32) || defined(OPENSSL_SYSNAME_WIN32) 102# undef OPENSSL_SYS_UNIX 103# define OPENSSL_SYS_WIN32 104# endif 105# if defined(OPENSSL_SYSNAME_WINNT) 106# undef OPENSSL_SYS_UNIX 107# define OPENSSL_SYS_WINNT 108# endif 109# if defined(OPENSSL_SYSNAME_WINCE) 110# undef OPENSSL_SYS_UNIX 111# define OPENSSL_SYS_WINCE 112# endif 113# endif 114#endif 115 116/* Anything that tries to look like Microsoft is "Windows" */ 117#if defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE) 118# undef OPENSSL_SYS_UNIX 119# define OPENSSL_SYS_WINDOWS 120# ifndef OPENSSL_SYS_MSDOS 121# define OPENSSL_SYS_MSDOS 122# endif 123#endif 124 125/* DLL settings. This part is a bit tough, because it's up to the application 126 implementor how he or she will link the application, so it requires some 127 macro to be used. */ 128#ifdef OPENSSL_SYS_WINDOWS 129# ifndef OPENSSL_OPT_WINDLL 130# if defined(_WINDLL) /* This is used when building OpenSSL to indicate that 131 DLL linkage should be used */ 132# define OPENSSL_OPT_WINDLL 133# endif 134# endif 135#endif 136 137/* -------------------------------- OpenVMS -------------------------------- */ 138#if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYSNAME_VMS) 139# undef OPENSSL_SYS_UNIX 140# define OPENSSL_SYS_VMS 141# if defined(__DECC) 142# define OPENSSL_SYS_VMS_DECC 143# elif defined(__DECCXX) 144# define OPENSSL_SYS_VMS_DECC 145# define OPENSSL_SYS_VMS_DECCXX 146# else 147# define OPENSSL_SYS_VMS_NODECC 148# endif 149#endif 150 151/* --------------------------------- OS/2 ---------------------------------- */ 152#if defined(__EMX__) || defined(__OS2__) 153# undef OPENSSL_SYS_UNIX 154# define OPENSSL_SYS_OS2 155#endif 156 157/* --------------------------------- Unix ---------------------------------- */ 158#ifdef OPENSSL_SYS_UNIX 159# if defined(linux) || defined(__linux__) || defined(OPENSSL_SYSNAME_LINUX) 160# define OPENSSL_SYS_LINUX 161# endif 162# ifdef OPENSSL_SYSNAME_MPE 163# define OPENSSL_SYS_MPE 164# endif 165# ifdef OPENSSL_SYSNAME_SNI 166# define OPENSSL_SYS_SNI 167# endif 168# ifdef OPENSSL_SYSNAME_ULTRASPARC 169# define OPENSSL_SYS_ULTRASPARC 170# endif 171# ifdef OPENSSL_SYSNAME_NEWS4 172# define OPENSSL_SYS_NEWS4 173# endif 174# ifdef OPENSSL_SYSNAME_MACOSX 175# define OPENSSL_SYS_MACOSX 176# endif 177# ifdef OPENSSL_SYSNAME_MACOSX_RHAPSODY 178# define OPENSSL_SYS_MACOSX_RHAPSODY 179# define OPENSSL_SYS_MACOSX 180# endif 181# ifdef OPENSSL_SYSNAME_SUNOS 182# define OPENSSL_SYS_SUNOS 183#endif 184# if defined(_CRAY) || defined(OPENSSL_SYSNAME_CRAY) 185# define OPENSSL_SYS_CRAY 186# endif 187# if defined(_AIX) || defined(OPENSSL_SYSNAME_AIX) 188# define OPENSSL_SYS_AIX 189# endif 190#endif 191 192/* --------------------------------- VOS ----------------------------------- */ 193#ifdef OPENSSL_SYSNAME_VOS 194# define OPENSSL_SYS_VOS 195#endif 196 197/* ------------------------------- VxWorks --------------------------------- */ 198#ifdef OPENSSL_SYSNAME_VXWORKS 199# define OPENSSL_SYS_VXWORKS 200#endif 201 202/** 203 * That's it for OS-specific stuff 204 *****************************************************************************/ 205 206 207/* Specials for I/O an exit */ 208#ifdef OPENSSL_SYS_MSDOS 209# define OPENSSL_UNISTD_IO <io.h> 210# define OPENSSL_DECLARE_EXIT extern void exit(int); 211#else 212# define OPENSSL_UNISTD_IO OPENSSL_UNISTD 213# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */ 214#endif 215 216/* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN, to define and declare 217 certain global symbols that, with some compilers under VMS, have to be 218 defined and declared explicitely with globaldef and globalref. 219 Definitions of OPENSSL_EXPORT and OPENSSL_IMPORT, to define and declare 220 DLL exports and imports for compilers under Win32. These are a little 221 more complicated to use. Basically, for any library that exports some 222 global variables, the following code must be present in the header file 223 that declares them, before OPENSSL_EXTERN is used: 224 225 #ifdef SOME_BUILD_FLAG_MACRO 226 # undef OPENSSL_EXTERN 227 # define OPENSSL_EXTERN OPENSSL_EXPORT 228 #endif 229 230 The default is to have OPENSSL_EXPORT, OPENSSL_IMPORT and OPENSSL_GLOBAL 231 have some generally sensible values, and for OPENSSL_EXTERN to have the 232 value OPENSSL_IMPORT. 233*/ 234 235#if defined(OPENSSL_SYS_VMS_NODECC) 236# define OPENSSL_EXPORT globalref 237# define OPENSSL_IMPORT globalref 238# define OPENSSL_GLOBAL globaldef 239#elif defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL) 240# define OPENSSL_EXPORT extern _declspec(dllexport) 241# define OPENSSL_IMPORT extern _declspec(dllimport) 242# define OPENSSL_GLOBAL 243#else 244# define OPENSSL_EXPORT extern 245# define OPENSSL_IMPORT extern 246# define OPENSSL_GLOBAL 247#endif 248#define OPENSSL_EXTERN OPENSSL_IMPORT 249 250/* Macros to allow global variables to be reached through function calls when 251 required (if a shared library version requires it, for example. 252 The way it's done allows definitions like this: 253 254 // in foobar.c 255 OPENSSL_IMPLEMENT_GLOBAL(int,foobar) = 0; 256 // in foobar.h 257 OPENSSL_DECLARE_GLOBAL(int,foobar); 258 #define foobar OPENSSL_GLOBAL_REF(foobar) 259*/ 260#ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION 261# define OPENSSL_IMPLEMENT_GLOBAL(type,name) \ 262 extern type _hide_##name; \ 263 type *_shadow_##name(void) { return &_hide_##name; } \ 264 static type _hide_##name 265# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void) 266# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name())) 267#else 268# define OPENSSL_IMPLEMENT_GLOBAL(type,name) OPENSSL_GLOBAL type _shadow_##name 269# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name 270# define OPENSSL_GLOBAL_REF(name) _shadow_##name 271#endif 272 273#ifdef __cplusplus 274} 275#endif 276#endif 277