1/* 2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10#ifndef HEADER_E_OS2_H 11# define HEADER_E_OS2_H 12 13# include <openssl/opensslconf.h> 14 15#ifdef __cplusplus 16extern "C" { 17#endif 18 19/****************************************************************************** 20 * Detect operating systems. This probably needs completing. 21 * The result is that at least one OPENSSL_SYS_os macro should be defined. 22 * However, if none is defined, Unix is assumed. 23 **/ 24 25# define OPENSSL_SYS_UNIX 26 27/* --------------------- Microsoft operating systems ---------------------- */ 28 29/* 30 * Note that MSDOS actually denotes 32-bit environments running on top of 31 * MS-DOS, such as DJGPP one. 32 */ 33# if defined(OPENSSL_SYS_MSDOS) 34# undef OPENSSL_SYS_UNIX 35# endif 36 37/* 38 * For 32 bit environment, there seems to be the CygWin environment and then 39 * all the others that try to do the same thing Microsoft does... 40 */ 41/* 42 * UEFI lives here because it might be built with a Microsoft toolchain and 43 * we need to avoid the false positive match on Windows. 44 */ 45# if defined(OPENSSL_SYS_UEFI) 46# undef OPENSSL_SYS_UNIX 47# elif defined(OPENSSL_SYS_UWIN) 48# undef OPENSSL_SYS_UNIX 49# define OPENSSL_SYS_WIN32_UWIN 50# else 51# if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN) 52# define OPENSSL_SYS_WIN32_CYGWIN 53# else 54# if defined(_WIN32) || defined(OPENSSL_SYS_WIN32) 55# undef OPENSSL_SYS_UNIX 56# if !defined(OPENSSL_SYS_WIN32) 57# define OPENSSL_SYS_WIN32 58# endif 59# endif 60# if defined(_WIN64) || defined(OPENSSL_SYS_WIN64) 61# undef OPENSSL_SYS_UNIX 62# if !defined(OPENSSL_SYS_WIN64) 63# define OPENSSL_SYS_WIN64 64# endif 65# endif 66# if defined(OPENSSL_SYS_WINNT) 67# undef OPENSSL_SYS_UNIX 68# endif 69# if defined(OPENSSL_SYS_WINCE) 70# undef OPENSSL_SYS_UNIX 71# endif 72# endif 73# endif 74 75/* Anything that tries to look like Microsoft is "Windows" */ 76# if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE) 77# undef OPENSSL_SYS_UNIX 78# define OPENSSL_SYS_WINDOWS 79# ifndef OPENSSL_SYS_MSDOS 80# define OPENSSL_SYS_MSDOS 81# endif 82# endif 83 84/* 85 * DLL settings. This part is a bit tough, because it's up to the 86 * application implementor how he or she will link the application, so it 87 * requires some macro to be used. 88 */ 89# ifdef OPENSSL_SYS_WINDOWS 90# ifndef OPENSSL_OPT_WINDLL 91# if defined(_WINDLL) /* This is used when building OpenSSL to 92 * indicate that DLL linkage should be used */ 93# define OPENSSL_OPT_WINDLL 94# endif 95# endif 96# endif 97 98/* ------------------------------- OpenVMS -------------------------------- */ 99# if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS) 100# if !defined(OPENSSL_SYS_VMS) 101# undef OPENSSL_SYS_UNIX 102# endif 103# define OPENSSL_SYS_VMS 104# if defined(__DECC) 105# define OPENSSL_SYS_VMS_DECC 106# elif defined(__DECCXX) 107# define OPENSSL_SYS_VMS_DECC 108# define OPENSSL_SYS_VMS_DECCXX 109# else 110# define OPENSSL_SYS_VMS_NODECC 111# endif 112# endif 113 114/* -------------------------------- Unix ---------------------------------- */ 115# ifdef OPENSSL_SYS_UNIX 116# if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX) 117# define OPENSSL_SYS_LINUX 118# endif 119# if defined(_AIX) && !defined(OPENSSL_SYS_AIX) 120# define OPENSSL_SYS_AIX 121# endif 122# endif 123 124/* -------------------------------- VOS ----------------------------------- */ 125# if defined(__VOS__) && !defined(OPENSSL_SYS_VOS) 126# define OPENSSL_SYS_VOS 127# ifdef __HPPA__ 128# define OPENSSL_SYS_VOS_HPPA 129# endif 130# ifdef __IA32__ 131# define OPENSSL_SYS_VOS_IA32 132# endif 133# endif 134 135/** 136 * That's it for OS-specific stuff 137 *****************************************************************************/ 138 139/* Specials for I/O an exit */ 140# ifdef OPENSSL_SYS_MSDOS 141# define OPENSSL_UNISTD_IO <io.h> 142# define OPENSSL_DECLARE_EXIT extern void exit(int); 143# else 144# define OPENSSL_UNISTD_IO OPENSSL_UNISTD 145# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */ 146# endif 147 148/*- 149 * OPENSSL_EXTERN is normally used to declare a symbol with possible extra 150 * attributes to handle its presence in a shared library. 151 * OPENSSL_EXPORT is used to define a symbol with extra possible attributes 152 * to make it visible in a shared library. 153 * Care needs to be taken when a header file is used both to declare and 154 * define symbols. Basically, for any library that exports some global 155 * variables, the following code must be present in the header file that 156 * declares them, before OPENSSL_EXTERN is used: 157 * 158 * #ifdef SOME_BUILD_FLAG_MACRO 159 * # undef OPENSSL_EXTERN 160 * # define OPENSSL_EXTERN OPENSSL_EXPORT 161 * #endif 162 * 163 * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN 164 * have some generally sensible values. 165 */ 166 167# if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL) 168# define OPENSSL_EXPORT extern __declspec(dllexport) 169# define OPENSSL_EXTERN extern __declspec(dllimport) 170# else 171# define OPENSSL_EXPORT extern 172# define OPENSSL_EXTERN extern 173# endif 174 175/*- 176 * Macros to allow global variables to be reached through function calls when 177 * required (if a shared library version requires it, for example. 178 * The way it's done allows definitions like this: 179 * 180 * // in foobar.c 181 * OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0) 182 * // in foobar.h 183 * OPENSSL_DECLARE_GLOBAL(int,foobar); 184 * #define foobar OPENSSL_GLOBAL_REF(foobar) 185 */ 186# ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION 187# define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) \ 188 type *_shadow_##name(void) \ 189 { static type _hide_##name=value; return &_hide_##name; } 190# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void) 191# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name())) 192# else 193# define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) type _shadow_##name=value; 194# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name 195# define OPENSSL_GLOBAL_REF(name) _shadow_##name 196# endif 197 198# ifdef _WIN32 199# ifdef _WIN64 200# define ossl_ssize_t __int64 201# define OSSL_SSIZE_MAX _I64_MAX 202# else 203# define ossl_ssize_t int 204# define OSSL_SSIZE_MAX INT_MAX 205# endif 206# endif 207 208# if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t) 209# define ossl_ssize_t INTN 210# define OSSL_SSIZE_MAX MAX_INTN 211# endif 212 213# ifndef ossl_ssize_t 214# define ossl_ssize_t ssize_t 215# if defined(SSIZE_MAX) 216# define OSSL_SSIZE_MAX SSIZE_MAX 217# elif defined(_POSIX_SSIZE_MAX) 218# define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX 219# else 220# define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1)) 221# endif 222# endif 223 224# ifdef DEBUG_UNUSED 225# define __owur __attribute__((__warn_unused_result__)) 226# else 227# define __owur 228# endif 229 230/* Standard integer types */ 231# if defined(OPENSSL_SYS_UEFI) 232typedef INT8 int8_t; 233typedef UINT8 uint8_t; 234typedef INT16 int16_t; 235typedef UINT16 uint16_t; 236typedef INT32 int32_t; 237typedef UINT32 uint32_t; 238typedef INT64 int64_t; 239typedef UINT64 uint64_t; 240# elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 241 defined(__osf__) || defined(__sgi) || defined(__hpux) || \ 242 defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__) 243# include <inttypes.h> 244# elif defined(_MSC_VER) && _MSC_VER<1600 245/* 246 * minimally required typdefs for systems not supporting inttypes.h or 247 * stdint.h: currently just older VC++ 248 */ 249typedef signed char int8_t; 250typedef unsigned char uint8_t; 251typedef short int16_t; 252typedef unsigned short uint16_t; 253typedef int int32_t; 254typedef unsigned int uint32_t; 255typedef __int64 int64_t; 256typedef unsigned __int64 uint64_t; 257# else 258# include <stdint.h> 259# endif 260 261/* ossl_inline: portable inline definition usable in public headers */ 262# if !defined(inline) && !defined(__cplusplus) 263# if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L 264 /* just use inline */ 265# define ossl_inline inline 266# elif defined(__GNUC__) && __GNUC__>=2 267# define ossl_inline __inline__ 268# elif defined(_MSC_VER) 269 /* 270 * Visual Studio: inline is available in C++ only, however 271 * __inline is available for C, see 272 * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx 273 */ 274# define ossl_inline __inline 275# else 276# define ossl_inline 277# endif 278# else 279# define ossl_inline inline 280# endif 281 282# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && \ 283 !defined(__cplusplus) 284# define ossl_noreturn _Noreturn 285# elif defined(__GNUC__) && __GNUC__ >= 2 286# define ossl_noreturn __attribute__((noreturn)) 287# else 288# define ossl_noreturn 289# endif 290 291/* ossl_unused: portable unused attribute for use in public headers */ 292# if defined(__GNUC__) 293# define ossl_unused __attribute__((unused)) 294# else 295# define ossl_unused 296# endif 297 298#ifdef __cplusplus 299} 300#endif 301#endif 302