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 16 extern "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) 232 typedef INT8 int8_t; 233 typedef UINT8 uint8_t; 234 typedef INT16 int16_t; 235 typedef UINT16 uint16_t; 236 typedef INT32 int32_t; 237 typedef UINT32 uint32_t; 238 typedef INT64 int64_t; 239 typedef 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 */ 249 typedef signed char int8_t; 250 typedef unsigned char uint8_t; 251 typedef short int16_t; 252 typedef unsigned short uint16_t; 253 typedef int int32_t; 254 typedef unsigned int uint32_t; 255 typedef __int64 int64_t; 256 typedef 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
Indexes created Mon Mar 02 05:31:46 UTC 2026