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#include <sys/types.h>
204#define ossl_ssize_t ssize_t
205#if defined(SSIZE_MAX)
206#define OSSL_SSIZE_MAX SSIZE_MAX
207#elif defined(_POSIX_SSIZE_MAX)
208#define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
209#else
210#define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1))
211#endif
212#endif
213
214#if defined(UNUSEDRESULT_DEBUG)
215#define __owur __attribute__((__warn_unused_result__))
216#else
217#define __owur
218#endif
219
220/* Standard integer types */
221#define OPENSSL_NO_INTTYPES_H
222#define OPENSSL_NO_STDINT_H
223#if defined(OPENSSL_SYS_UEFI)
224typedef INT8 int8_t;
225typedef UINT8 uint8_t;
226typedef INT16 int16_t;
227typedef UINT16 uint16_t;
228typedef INT32 int32_t;
229typedef UINT32 uint32_t;
230typedef INT64 int64_t;
231typedef UINT64 uint64_t;
232typedef UINTN uintptr_t;
233#elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__osf__) || defined(__sgi) || defined(__hpux) || defined(OPENSSL_SYS_VMS) || defined(__OpenBSD__)
234#include <inttypes.h>
235#undef OPENSSL_NO_INTTYPES_H
236/* Because the specs say that inttypes.h includes stdint.h if present */
237#undef OPENSSL_NO_STDINT_H
238#elif defined(_MSC_VER) && _MSC_VER < 1600
239/*
240 * minimally required typdefs for systems not supporting inttypes.h or
241 * stdint.h: currently just older VC++
242 */
243typedef signed char int8_t;
244typedef unsigned char uint8_t;
245typedef short int16_t;
246typedef unsigned short uint16_t;
247typedef int int32_t;
248typedef unsigned int uint32_t;
249typedef __int64 int64_t;
250typedef unsigned __int64 uint64_t;
251#elif defined(OPENSSL_SYS_TANDEM)
252#include <stdint.h>
253#include <sys/types.h>
254#else
255#include <stdint.h>
256#undef OPENSSL_NO_STDINT_H
257#endif
258#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && defined(INTMAX_MAX) && defined(UINTMAX_MAX)
259typedef intmax_t ossl_intmax_t;
260typedef uintmax_t ossl_uintmax_t;
261#else
262/* Fall back to the largest we know we require and can handle */
263typedef int64_t ossl_intmax_t;
264typedef uint64_t ossl_uintmax_t;
265#endif
266
267/* ossl_inline: portable inline definition usable in public headers */
268#if !defined(inline) && !defined(__cplusplus)
269#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
270/* just use inline */
271#define ossl_inline inline
272#elif defined(__GNUC__) && __GNUC__ >= 2
273#define ossl_inline __inline__
274#elif defined(_MSC_VER)
275/*
276 * Visual Studio: inline is available in C++ only, however
277 * __inline is available for C, see
278 * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
279 */
280#define ossl_inline __inline
281#else
282#define ossl_inline
283#endif
284#else
285#define ossl_inline inline
286#endif
287
288#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
289#define ossl_noreturn _Noreturn
290#elif defined(__GNUC__) && __GNUC__ >= 2
291#define ossl_noreturn __attribute__((noreturn))
292#else
293#define ossl_noreturn
294#endif
295
296/* ossl_unused: portable unused attribute for use in public headers */
297#if defined(__GNUC__)
298#define ossl_unused __attribute__((unused))
299#else
300#define ossl_unused
301#endif
302
303#ifdef __cplusplus
304}
305#endif
306#endif
307