include/openssl/e_os2.h

0001 /*
0002  * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
0003  *
0004  * Licensed under the Apache License 2.0 (the "License").  You may not use
0005  * this file except in compliance with the License.  You can obtain a copy
0006  * in the file LICENSE in the source distribution or at
0007  * https://www.openssl.org/source/license.html
0008  */
0009
0010 #ifndef OPENSSL_E_OS2_H
0011 # define OPENSSL_E_OS2_H
0012 # pragma once
0013
0014 # include <openssl/macros.h>
0015 # ifndef OPENSSL_NO_DEPRECATED_3_0
0016 #  define HEADER_E_OS2_H
0017 # endif
0018
0019 # include <openssl/opensslconf.h>
0020
0021 #ifdef  __cplusplus
0022 extern "C" {
0023 #endif
0024
0025 /******************************************************************************
0026  * Detect operating systems.  This probably needs completing.
0027  * The result is that at least one OPENSSL_SYS_os macro should be defined.
0028  * However, if none is defined, Unix is assumed.
0029  **/
0030
0031 # define OPENSSL_SYS_UNIX
0032
0033 /* --------------------- Microsoft operating systems ---------------------- */
0034
0035 /*
0036  * Note that MSDOS actually denotes 32-bit environments running on top of
0037  * MS-DOS, such as DJGPP one.
0038  */
0039 # if defined(OPENSSL_SYS_MSDOS)
0040 #  undef OPENSSL_SYS_UNIX
0041 # endif
0042
0043 /*
0044  * For 32 bit environment, there seems to be the CygWin environment and then
0045  * all the others that try to do the same thing Microsoft does...
0046  */
0047 /*
0048  * UEFI lives here because it might be built with a Microsoft toolchain and
0049  * we need to avoid the false positive match on Windows.
0050  */
0051 # if defined(OPENSSL_SYS_UEFI)
0052 #  undef OPENSSL_SYS_UNIX
0053 # elif defined(OPENSSL_SYS_UWIN)
0054 #  undef OPENSSL_SYS_UNIX
0055 #  define OPENSSL_SYS_WIN32_UWIN
0056 # else
0057 #  if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
0058 #   define OPENSSL_SYS_WIN32_CYGWIN
0059 #  else
0060 #   if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
0061 #    undef OPENSSL_SYS_UNIX
0062 #    if !defined(OPENSSL_SYS_WIN32)
0063 #     define OPENSSL_SYS_WIN32
0064 #    endif
0065 #   endif
0066 #   if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
0067 #    undef OPENSSL_SYS_UNIX
0068 #    if !defined(OPENSSL_SYS_WIN64)
0069 #     define OPENSSL_SYS_WIN64
0070 #    endif
0071 #   endif
0072 #   if defined(OPENSSL_SYS_WINNT)
0073 #    undef OPENSSL_SYS_UNIX
0074 #   endif
0075 #   if defined(OPENSSL_SYS_WINCE)
0076 #    undef OPENSSL_SYS_UNIX
0077 #   endif
0078 #  endif
0079 # endif
0080
0081 /* Anything that tries to look like Microsoft is "Windows" */
0082 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
0083 #  undef OPENSSL_SYS_UNIX
0084 #  define OPENSSL_SYS_WINDOWS
0085 #  ifndef OPENSSL_SYS_MSDOS
0086 #   define OPENSSL_SYS_MSDOS
0087 #  endif
0088 # endif
0089
0090 /*
0091  * DLL settings.  This part is a bit tough, because it's up to the
0092  * application implementer how he or she will link the application, so it
0093  * requires some macro to be used.
0094  */
0095 # ifdef OPENSSL_SYS_WINDOWS
0096 #  ifndef OPENSSL_OPT_WINDLL
0097 #   if defined(_WINDLL)         /* This is used when building OpenSSL to
0098                                  * indicate that DLL linkage should be used */
0099 #    define OPENSSL_OPT_WINDLL
0100 #   endif
0101 #  endif
0102 # endif
0103
0104 /* ------------------------------- OpenVMS -------------------------------- */
0105 # if defined(__VMS) || defined(VMS)
0106 #  if !defined(OPENSSL_SYS_VMS)
0107 #   undef OPENSSL_SYS_UNIX
0108 #   define OPENSSL_SYS_VMS
0109 #  endif
0110 #  if defined(__DECC)
0111 #   define OPENSSL_SYS_VMS_DECC
0112 #  elif defined(__DECCXX)
0113 #   define OPENSSL_SYS_VMS_DECC
0114 #   define OPENSSL_SYS_VMS_DECCXX
0115 #  else
0116 #   define OPENSSL_SYS_VMS_NODECC
0117 #  endif
0118 # endif
0119
0120 /* -------------------------------- Unix ---------------------------------- */
0121 # ifdef OPENSSL_SYS_UNIX
0122 #  if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
0123 #   define OPENSSL_SYS_LINUX
0124 #  endif
0125 #  if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
0126 #   define OPENSSL_SYS_AIX
0127 #  endif
0128 # endif
0129
0130 /* -------------------------------- VOS ----------------------------------- */
0131 # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
0132 #  define OPENSSL_SYS_VOS
0133 #  ifdef __HPPA__
0134 #   define OPENSSL_SYS_VOS_HPPA
0135 #  endif
0136 #  ifdef __IA32__
0137 #   define OPENSSL_SYS_VOS_IA32
0138 #  endif
0139 # endif
0140
0141 /* ---------------------------- HP NonStop -------------------------------- */
0142 # ifdef __TANDEM
0143 #  ifdef _STRING
0144 #   include <strings.h>
0145 #  endif
0146 # define OPENSSL_USE_BUILD_DATE
0147 # if defined(OPENSSL_THREADS) && defined(_SPT_MODEL_)
0148 #  define  SPT_THREAD_SIGNAL 1
0149 #  define  SPT_THREAD_AWARE 1
0150 #  include <spthread.h>
0151 # elif defined(OPENSSL_THREADS) && defined(_PUT_MODEL_)
0152 #  include <pthread.h>
0153 # endif
0154 # endif
0155
0156 /**
0157  * That's it for OS-specific stuff
0158  *****************************************************************************/
0159
0160 /*-
0161  * OPENSSL_EXTERN is normally used to declare a symbol with possible extra
0162  * attributes to handle its presence in a shared library.
0163  * OPENSSL_EXPORT is used to define a symbol with extra possible attributes
0164  * to make it visible in a shared library.
0165  * Care needs to be taken when a header file is used both to declare and
0166  * define symbols.  Basically, for any library that exports some global
0167  * variables, the following code must be present in the header file that
0168  * declares them, before OPENSSL_EXTERN is used:
0169  *
0170  * #ifdef SOME_BUILD_FLAG_MACRO
0171  * # undef OPENSSL_EXTERN
0172  * # define OPENSSL_EXTERN OPENSSL_EXPORT
0173  * #endif
0174  *
0175  * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
0176  * have some generally sensible values.
0177  */
0178
0179 # if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
0180 #  define OPENSSL_EXPORT extern __declspec(dllexport)
0181 #  define OPENSSL_EXTERN extern __declspec(dllimport)
0182 # else
0183 #  define OPENSSL_EXPORT extern
0184 #  define OPENSSL_EXTERN extern
0185 # endif
0186
0187 # ifdef _WIN32
0188 #  ifdef _WIN64
0189 #   define ossl_ssize_t __int64
0190 #   define OSSL_SSIZE_MAX _I64_MAX
0191 #  else
0192 #   define ossl_ssize_t int
0193 #   define OSSL_SSIZE_MAX INT_MAX
0194 #  endif
0195 # endif
0196
0197 # if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
0198 #  define ossl_ssize_t INTN
0199 #  define OSSL_SSIZE_MAX MAX_INTN
0200 # endif
0201
0202 # ifndef ossl_ssize_t
0203 #  include <sys/types.h>
0204 #  define ossl_ssize_t ssize_t
0205 #  if defined(SSIZE_MAX)
0206 #   define OSSL_SSIZE_MAX SSIZE_MAX
0207 #  elif defined(_POSIX_SSIZE_MAX)
0208 #   define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
0209 #  else
0210 #   define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
0211 #  endif
0212 # endif
0213
0214 # if defined(UNUSEDRESULT_DEBUG)
0215 #  define __owur __attribute__((__warn_unused_result__))
0216 # else
0217 #  define __owur
0218 # endif
0219
0220 /* Standard integer types */
0221 # define OPENSSL_NO_INTTYPES_H
0222 # define OPENSSL_NO_STDINT_H
0223 # if defined(OPENSSL_SYS_UEFI)
0224 typedef INT8 int8_t;
0225 typedef UINT8 uint8_t;
0226 typedef INT16 int16_t;
0227 typedef UINT16 uint16_t;
0228 typedef INT32 int32_t;
0229 typedef UINT32 uint32_t;
0230 typedef INT64 int64_t;
0231 typedef UINT64 uint64_t;
0232 typedef UINTN uintptr_t;
0233 # elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
0234      defined(__osf__) || defined(__sgi) || defined(__hpux) || \
0235      defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
0236 #  include <inttypes.h>
0237 #  undef OPENSSL_NO_INTTYPES_H
0238 /* Because the specs say that inttypes.h includes stdint.h if present */
0239 #  undef OPENSSL_NO_STDINT_H
0240 # elif defined(_MSC_VER) && _MSC_VER<1600
0241 /*
0242  * minimally required typdefs for systems not supporting inttypes.h or
0243  * stdint.h: currently just older VC++
0244  */
0245 typedef signed char int8_t;
0246 typedef unsigned char uint8_t;
0247 typedef short int16_t;
0248 typedef unsigned short uint16_t;
0249 typedef int int32_t;
0250 typedef unsigned int uint32_t;
0251 typedef __int64 int64_t;
0252 typedef unsigned __int64 uint64_t;
0253 # elif defined(OPENSSL_SYS_TANDEM)
0254 #  include <stdint.h>
0255 #  include <sys/types.h>
0256 # else
0257 #  include <stdint.h>
0258 #  undef OPENSSL_NO_STDINT_H
0259 # endif
0260 # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \
0261     defined(INTMAX_MAX) && defined(UINTMAX_MAX)
0262 typedef intmax_t ossl_intmax_t;
0263 typedef uintmax_t ossl_uintmax_t;
0264 # else
0265 /* Fall back to the largest we know we require and can handle */
0266 typedef int64_t ossl_intmax_t;
0267 typedef uint64_t ossl_uintmax_t;
0268 # endif
0269
0270 /* ossl_inline: portable inline definition usable in public headers */
0271 # if !defined(inline) && !defined(__cplusplus)
0272 #  if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
0273    /* just use inline */
0274 #   define ossl_inline inline
0275 #  elif defined(__GNUC__) && __GNUC__>=2
0276 #   define ossl_inline __inline__
0277 #  elif defined(_MSC_VER)
0278   /*
0279    * Visual Studio: inline is available in C++ only, however
0280    * __inline is available for C, see
0281    * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
0282    */
0283 #   define ossl_inline __inline
0284 #  else
0285 #   define ossl_inline
0286 #  endif
0287 # else
0288 #  define ossl_inline inline
0289 # endif
0290
0291 # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && \
0292      !defined(__cplusplus)
0293 #  define ossl_noreturn _Noreturn
0294 # elif defined(__GNUC__) && __GNUC__ >= 2
0295 #  define ossl_noreturn __attribute__((noreturn))
0296 # else
0297 #  define ossl_noreturn
0298 # endif
0299
0300 /* ossl_unused: portable unused attribute for use in public headers */
0301 # if defined(__GNUC__)
0302 #  define ossl_unused __attribute__((unused))
0303 # else
0304 #  define ossl_unused
0305 # endif
0306
0307 #ifdef  __cplusplus
0308 }
0309 #endif
0310 #endif