1/*
2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 OPENSSL_E_OS2_H
11# define OPENSSL_E_OS2_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16# define HEADER_E_OS2_H
17# endif
18
19# include <openssl/opensslconf.h>
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25/******************************************************************************
26 * Detect operating systems. This probably needs completing.
27 * The result is that at least one OPENSSL_SYS_os macro should be defined.
28 * However, if none is defined, Unix is assumed.
29 **/
30
31# define OPENSSL_SYS_UNIX
32
33/* --------------------- Microsoft operating systems ---------------------- */
34
35/*
36 * Note that MSDOS actually denotes 32-bit environments running on top of
37 * MS-DOS, such as DJGPP one.
38 */
39# if defined(OPENSSL_SYS_MSDOS)
40# undef OPENSSL_SYS_UNIX
41# endif
42
43/*
44 * For 32 bit environment, there seems to be the CygWin environment and then
45 * all the others that try to do the same thing Microsoft does...
46 */
47/*
48 * UEFI lives here because it might be built with a Microsoft toolchain and
49 * we need to avoid the false positive match on Windows.
50 */
51# if defined(OPENSSL_SYS_UEFI)
52# undef OPENSSL_SYS_UNIX
53# elif defined(OPENSSL_SYS_UWIN)
54# undef OPENSSL_SYS_UNIX
55# define OPENSSL_SYS_WIN32_UWIN
56# else
57# if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
58# define OPENSSL_SYS_WIN32_CYGWIN
59# else
60# if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
61# undef OPENSSL_SYS_UNIX
62# if !defined(OPENSSL_SYS_WIN32)
63# define OPENSSL_SYS_WIN32
64# endif
65# endif
66# if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
67# undef OPENSSL_SYS_UNIX
68# if !defined(OPENSSL_SYS_WIN64)
69# define OPENSSL_SYS_WIN64
70# endif
71# endif
72# if defined(OPENSSL_SYS_WINNT)
73# undef OPENSSL_SYS_UNIX
74# endif
75# if defined(OPENSSL_SYS_WINCE)
76# undef OPENSSL_SYS_UNIX
77# endif
78# endif
79# endif
80
81/* Anything that tries to look like Microsoft is "Windows" */
82# if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
83# undef OPENSSL_SYS_UNIX
84# define OPENSSL_SYS_WINDOWS
85# ifndef OPENSSL_SYS_MSDOS
86# define OPENSSL_SYS_MSDOS
87# endif
88# endif
89
90/*
91 * DLL settings. This part is a bit tough, because it's up to the
92 * application implementer how he or she will link the application, so it
93 * requires some macro to be used.
94 */
95# ifdef OPENSSL_SYS_WINDOWS
96# ifndef OPENSSL_OPT_WINDLL
97# if defined(_WINDLL) /* This is used when building OpenSSL to
98 * indicate that DLL linkage should be used */
99# define OPENSSL_OPT_WINDLL
100# endif
101# endif
102# endif
103
104/* ------------------------------- OpenVMS -------------------------------- */
105# if defined(__VMS) || defined(VMS)
106# if !defined(OPENSSL_SYS_VMS)
107# undef OPENSSL_SYS_UNIX
108# define OPENSSL_SYS_VMS
109# endif
110# if defined(__DECC)
111# define OPENSSL_SYS_VMS_DECC
112# elif defined(__DECCXX)
113# define OPENSSL_SYS_VMS_DECC
114# define OPENSSL_SYS_VMS_DECCXX
115# else
116# define OPENSSL_SYS_VMS_NODECC
117# endif
118# endif
119
120/* -------------------------------- Unix ---------------------------------- */
121# ifdef OPENSSL_SYS_UNIX
122# if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
123# define OPENSSL_SYS_LINUX
124# endif
125# if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
126# define OPENSSL_SYS_AIX
127# endif
128# endif
129
130/* -------------------------------- VOS ----------------------------------- */
131# if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
132# define OPENSSL_SYS_VOS
133# ifdef __HPPA__
134# define OPENSSL_SYS_VOS_HPPA
135# endif
136# ifdef __IA32__
137# define OPENSSL_SYS_VOS_IA32
138# endif
139# endif
140
141/* ---------------------------- HP NonStop -------------------------------- */
142# ifdef __TANDEM
143# ifdef _STRING
144# include <strings.h>
145# endif
146# define OPENSSL_USE_BUILD_DATE
147# if defined(OPENSSL_THREADS) && defined(_SPT_MODEL_)
148# define SPT_THREAD_SIGNAL 1
149# define SPT_THREAD_AWARE 1
150# include <spthread.h>
151# elif defined(OPENSSL_THREADS) && defined(_PUT_MODEL_)
152# include <pthread.h>
153# endif
154# endif
155
156/**
157 * That's it for OS-specific stuff
158 *****************************************************************************/
159
160/*-
161 * OPENSSL_EXTERN is normally used to declare a symbol with possible extra
162 * attributes to handle its presence in a shared library.
163 * OPENSSL_EXPORT is used to define a symbol with extra possible attributes
164 * to make it visible in a shared library.
165 * Care needs to be taken when a header file is used both to declare and
166 * define symbols. Basically, for any library that exports some global
167 * variables, the following code must be present in the header file that
168 * declares them, before OPENSSL_EXTERN is used:
169 *
170 * #ifdef SOME_BUILD_FLAG_MACRO
171 * # undef OPENSSL_EXTERN
172 * # define OPENSSL_EXTERN OPENSSL_EXPORT
173 * #endif
174 *
175 * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
176 * have some generally sensible values.
177 */
178
179# if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
180# define OPENSSL_EXPORT extern __declspec(dllexport)
181# define OPENSSL_EXTERN extern __declspec(dllimport)
182# else
183# define OPENSSL_EXPORT extern
184# define OPENSSL_EXTERN extern
185# endif
186
187# ifdef _WIN32
188# ifdef _WIN64
189# define ossl_ssize_t __int64
190# define OSSL_SSIZE_MAX _I64_MAX
191# else
192# define ossl_ssize_t int
193# define OSSL_SSIZE_MAX INT_MAX
194# endif
195# endif
196
197# if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
198# define ossl_ssize_t INTN
199# define OSSL_SSIZE_MAX MAX_INTN
200# endif
201
202# ifndef ossl_ssize_t
203# define ossl_ssize_t ssize_t
204# if defined(SSIZE_MAX)
205# define OSSL_SSIZE_MAX SSIZE_MAX
206# elif defined(_POSIX_SSIZE_MAX)
207# define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
208# else
209# define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
210# endif
211# endif
212
213# if defined(UNUSEDRESULT_DEBUG)
214# define __owur __attribute__((__warn_unused_result__))
215# else
216# define __owur
217# endif
218
219/* Standard integer types */
220# define OPENSSL_NO_INTTYPES_H
221# define OPENSSL_NO_STDINT_H
222# if defined(OPENSSL_SYS_UEFI)
223typedef INT8 int8_t;
224typedef UINT8 uint8_t;
225typedef INT16 int16_t;
226typedef UINT16 uint16_t;
227typedef INT32 int32_t;
228typedef UINT32 uint32_t;
229typedef INT64 int64_t;
230typedef UINT64 uint64_t;
231typedef UINTN uintptr_t;
232# elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
233 defined(__osf__) || defined(__sgi) || defined(__hpux) || \
234 defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
235# include <inttypes.h>
236# undef OPENSSL_NO_INTTYPES_H
237/* Because the specs say that inttypes.h includes stdint.h if present */
238# undef OPENSSL_NO_STDINT_H
239# elif defined(_MSC_VER) && _MSC_VER<1600
240/*
241 * minimally required typdefs for systems not supporting inttypes.h or
242 * stdint.h: currently just older VC++
243 */
244typedef signed char int8_t;
245typedef unsigned char uint8_t;
246typedef short int16_t;
247typedef unsigned short uint16_t;
248typedef int int32_t;
249typedef unsigned int uint32_t;
250typedef __int64 int64_t;
251typedef unsigned __int64 uint64_t;
252# elif defined(OPENSSL_SYS_TANDEM)
253# include <stdint.h>
254# include <sys/types.h>
255# else
256# include <stdint.h>
257# undef OPENSSL_NO_STDINT_H
258# endif
259# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \
260 defined(INTMAX_MAX) && defined(UINTMAX_MAX)
261typedef intmax_t ossl_intmax_t;
262typedef uintmax_t ossl_uintmax_t;
263# else
264/* Fall back to the largest we know we require and can handle */
265typedef int64_t ossl_intmax_t;
266typedef uint64_t ossl_uintmax_t;
267# endif
268
269/* ossl_inline: portable inline definition usable in public headers */
270# if !defined(inline) && !defined(__cplusplus)
271# if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
272 /* just use inline */
273# define ossl_inline inline
274# elif defined(__GNUC__) && __GNUC__>=2
275# define ossl_inline __inline__
276# elif defined(_MSC_VER)
277 /*
278 * Visual Studio: inline is available in C++ only, however
279 * __inline is available for C, see
280 * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
281 */
282# define ossl_inline __inline
283# else
284# define ossl_inline
285# endif
286# else
287# define ossl_inline inline
288# endif
289
290# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && \
291 !defined(__cplusplus)
292# define ossl_noreturn _Noreturn
293# elif defined(__GNUC__) && __GNUC__ >= 2
294# define ossl_noreturn __attribute__((noreturn))
295# else
296# define ossl_noreturn
297# endif
298
299/* ossl_unused: portable unused attribute for use in public headers */
300# if defined(__GNUC__)
301# define ossl_unused __attribute__((unused))
302# else
303# define ossl_unused
304# endif
305
306#ifdef __cplusplus
307}
308#endif
309#endif
310