1/*
2 * Copyright 1995-2018 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 implementor 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) || defined(OPENSSL_SYS_VMS)
106# if !defined(OPENSSL_SYS_VMS)
107# undef OPENSSL_SYS_UNIX
108# endif
109# define OPENSSL_SYS_VMS
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/**
142 * That's it for OS-specific stuff
143 *****************************************************************************/
144
145/*-
146 * OPENSSL_EXTERN is normally used to declare a symbol with possible extra
147 * attributes to handle its presence in a shared library.
148 * OPENSSL_EXPORT is used to define a symbol with extra possible attributes
149 * to make it visible in a shared library.
150 * Care needs to be taken when a header file is used both to declare and
151 * define symbols. Basically, for any library that exports some global
152 * variables, the following code must be present in the header file that
153 * declares them, before OPENSSL_EXTERN is used:
154 *
155 * #ifdef SOME_BUILD_FLAG_MACRO
156 * # undef OPENSSL_EXTERN
157 * # define OPENSSL_EXTERN OPENSSL_EXPORT
158 * #endif
159 *
160 * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
161 * have some generally sensible values.
162 */
163
164# if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
165# define OPENSSL_EXPORT extern __declspec(dllexport)
166# define OPENSSL_EXTERN extern __declspec(dllimport)
167# else
168# define OPENSSL_EXPORT extern
169# define OPENSSL_EXTERN extern
170# endif
171
172# ifdef _WIN32
173# ifdef _WIN64
174# define ossl_ssize_t __int64
175# define OSSL_SSIZE_MAX _I64_MAX
176# else
177# define ossl_ssize_t int
178# define OSSL_SSIZE_MAX INT_MAX
179# endif
180# endif
181
182# if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
183# define ossl_ssize_t INTN
184# define OSSL_SSIZE_MAX MAX_INTN
185# endif
186
187# ifndef ossl_ssize_t
188# define ossl_ssize_t ssize_t
189# if defined(SSIZE_MAX)
190# define OSSL_SSIZE_MAX SSIZE_MAX
191# elif defined(_POSIX_SSIZE_MAX)
192# define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
193# else
194# define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
195# endif
196# endif
197
198# ifdef DEBUG_UNUSED
199# define __owur __attribute__((__warn_unused_result__))
200# else
201# define __owur
202# endif
203
204/* Standard integer types */
205# define OPENSSL_NO_INTTYPES_H
206# define OPENSSL_NO_STDINT_H
207# if defined(OPENSSL_SYS_UEFI)
208typedef INT8 int8_t;
209typedef UINT8 uint8_t;
210typedef INT16 int16_t;
211typedef UINT16 uint16_t;
212typedef INT32 int32_t;
213typedef UINT32 uint32_t;
214typedef INT64 int64_t;
215typedef UINT64 uint64_t;
216# elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
217 defined(__osf__) || defined(__sgi) || defined(__hpux) || \
218 defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
219# include <inttypes.h>
220# undef OPENSSL_NO_INTTYPES_H
221/* Because the specs say that inttypes.h includes stdint.h if present */
222# undef OPENSSL_NO_STDINT_H
223# elif defined(_MSC_VER) && _MSC_VER<=1500
224/*
225 * minimally required typdefs for systems not supporting inttypes.h or
226 * stdint.h: currently just older VC++
227 */
228typedef signed char int8_t;
229typedef unsigned char uint8_t;
230typedef short int16_t;
231typedef unsigned short uint16_t;
232typedef int int32_t;
233typedef unsigned int uint32_t;
234typedef __int64 int64_t;
235typedef unsigned __int64 uint64_t;
236# else
237# include <stdint.h>
238# undef OPENSSL_NO_STDINT_H
239# endif
240
241/* ossl_inline: portable inline definition usable in public headers */
242# if !defined(inline) && !defined(__cplusplus)
243# if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
244 /* just use inline */
245# define ossl_inline inline
246# elif defined(__GNUC__) && __GNUC__>=2
247# define ossl_inline __inline__
248# elif defined(_MSC_VER)
249 /*
250 * Visual Studio: inline is available in C++ only, however
251 * __inline is available for C, see
252 * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
253 */
254# define ossl_inline __inline
255# else
256# define ossl_inline
257# endif
258# else
259# define ossl_inline inline
260# endif
261
262# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
263# define ossl_noreturn _Noreturn
264# elif defined(__GNUC__) && __GNUC__ >= 2
265# define ossl_noreturn __attribute__((noreturn))
266# else
267# define ossl_noreturn
268# endif
269
270/* ossl_unused: portable unused attribute for use in public headers */
271# if defined(__GNUC__)
272# define ossl_unused __attribute__((unused))
273# else
274# define ossl_unused
275# endif
276
277#ifdef __cplusplus
278}
279#endif
280#endif
281