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302 lines
8.7 KiB
C
302 lines
8.7 KiB
C
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/*
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* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef HEADER_E_OS2_H
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# define HEADER_E_OS2_H
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# include <openssl/opensslconf.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/******************************************************************************
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* Detect operating systems. This probably needs completing.
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* The result is that at least one OPENSSL_SYS_os macro should be defined.
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* However, if none is defined, Unix is assumed.
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**/
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# define OPENSSL_SYS_UNIX
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/* --------------------- Microsoft operating systems ---------------------- */
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/*
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* Note that MSDOS actually denotes 32-bit environments running on top of
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* MS-DOS, such as DJGPP one.
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*/
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# if defined(OPENSSL_SYS_MSDOS)
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# undef OPENSSL_SYS_UNIX
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# endif
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/*
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* For 32 bit environment, there seems to be the CygWin environment and then
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* all the others that try to do the same thing Microsoft does...
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*/
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/*
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* UEFI lives here because it might be built with a Microsoft toolchain and
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* we need to avoid the false positive match on Windows.
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*/
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# if defined(OPENSSL_SYS_UEFI)
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# undef OPENSSL_SYS_UNIX
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# elif defined(OPENSSL_SYS_UWIN)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WIN32_UWIN
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# else
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# if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
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# define OPENSSL_SYS_WIN32_CYGWIN
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# else
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# if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
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# undef OPENSSL_SYS_UNIX
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# if !defined(OPENSSL_SYS_WIN32)
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# define OPENSSL_SYS_WIN32
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# endif
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# endif
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# if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
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# undef OPENSSL_SYS_UNIX
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# if !defined(OPENSSL_SYS_WIN64)
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# define OPENSSL_SYS_WIN64
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# endif
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# endif
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# if defined(OPENSSL_SYS_WINNT)
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# undef OPENSSL_SYS_UNIX
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# endif
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# if defined(OPENSSL_SYS_WINCE)
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# undef OPENSSL_SYS_UNIX
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# endif
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# endif
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# endif
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/* Anything that tries to look like Microsoft is "Windows" */
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# if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
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# undef OPENSSL_SYS_UNIX
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# define OPENSSL_SYS_WINDOWS
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# ifndef OPENSSL_SYS_MSDOS
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# define OPENSSL_SYS_MSDOS
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# endif
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# endif
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/*
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* DLL settings. This part is a bit tough, because it's up to the
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* application implementor how he or she will link the application, so it
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* requires some macro to be used.
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*/
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# ifdef OPENSSL_SYS_WINDOWS
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# ifndef OPENSSL_OPT_WINDLL
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# if defined(_WINDLL) /* This is used when building OpenSSL to
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* indicate that DLL linkage should be used */
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# define OPENSSL_OPT_WINDLL
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# endif
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# endif
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# endif
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/* ------------------------------- OpenVMS -------------------------------- */
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# if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS)
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# if !defined(OPENSSL_SYS_VMS)
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# undef OPENSSL_SYS_UNIX
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# endif
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# define OPENSSL_SYS_VMS
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# if defined(__DECC)
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# define OPENSSL_SYS_VMS_DECC
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# elif defined(__DECCXX)
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# define OPENSSL_SYS_VMS_DECC
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# define OPENSSL_SYS_VMS_DECCXX
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# else
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# define OPENSSL_SYS_VMS_NODECC
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# endif
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# endif
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/* -------------------------------- Unix ---------------------------------- */
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# ifdef OPENSSL_SYS_UNIX
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# if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
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# define OPENSSL_SYS_LINUX
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# endif
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# if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
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# define OPENSSL_SYS_AIX
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# endif
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# endif
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/* -------------------------------- VOS ----------------------------------- */
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# if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
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# define OPENSSL_SYS_VOS
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# ifdef __HPPA__
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# define OPENSSL_SYS_VOS_HPPA
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# endif
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# ifdef __IA32__
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# define OPENSSL_SYS_VOS_IA32
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# endif
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# endif
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/**
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* That's it for OS-specific stuff
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*****************************************************************************/
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/* Specials for I/O an exit */
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# ifdef OPENSSL_SYS_MSDOS
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# define OPENSSL_UNISTD_IO <io.h>
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# define OPENSSL_DECLARE_EXIT extern void exit(int);
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# else
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# define OPENSSL_UNISTD_IO OPENSSL_UNISTD
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# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
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# endif
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/*-
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* OPENSSL_EXTERN is normally used to declare a symbol with possible extra
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* attributes to handle its presence in a shared library.
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* OPENSSL_EXPORT is used to define a symbol with extra possible attributes
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* to make it visible in a shared library.
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* Care needs to be taken when a header file is used both to declare and
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* define symbols. Basically, for any library that exports some global
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* variables, the following code must be present in the header file that
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* declares them, before OPENSSL_EXTERN is used:
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*
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* #ifdef SOME_BUILD_FLAG_MACRO
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* # undef OPENSSL_EXTERN
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* # define OPENSSL_EXTERN OPENSSL_EXPORT
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* #endif
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*
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* The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
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* have some generally sensible values.
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*/
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# if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
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# define OPENSSL_EXPORT extern __declspec(dllexport)
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# define OPENSSL_EXTERN extern __declspec(dllimport)
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# else
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# define OPENSSL_EXPORT extern
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# define OPENSSL_EXTERN extern
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# endif
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/*-
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* Macros to allow global variables to be reached through function calls when
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* required (if a shared library version requires it, for example.
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* The way it's done allows definitions like this:
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*
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* // in foobar.c
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* OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0)
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* // in foobar.h
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* OPENSSL_DECLARE_GLOBAL(int,foobar);
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* #define foobar OPENSSL_GLOBAL_REF(foobar)
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*/
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# ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION
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# define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) \
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type *_shadow_##name(void) \
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{ static type _hide_##name=value; return &_hide_##name; }
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# define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void)
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# define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name()))
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# else
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# define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) type _shadow_##name=value;
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# define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name
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# define OPENSSL_GLOBAL_REF(name) _shadow_##name
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# endif
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# ifdef _WIN32
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# ifdef _WIN64
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# define ossl_ssize_t __int64
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# define OSSL_SSIZE_MAX _I64_MAX
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# else
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# define ossl_ssize_t int
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# define OSSL_SSIZE_MAX INT_MAX
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# endif
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# endif
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# if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
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# define ossl_ssize_t INTN
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# define OSSL_SSIZE_MAX MAX_INTN
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# endif
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# ifndef ossl_ssize_t
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# define ossl_ssize_t ssize_t
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# if defined(SSIZE_MAX)
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# define OSSL_SSIZE_MAX SSIZE_MAX
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# elif defined(_POSIX_SSIZE_MAX)
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# define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
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# else
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# define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
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# endif
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# endif
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# ifdef DEBUG_UNUSED
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# define __owur __attribute__((__warn_unused_result__))
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# else
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# define __owur
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# endif
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/* Standard integer types */
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# if defined(OPENSSL_SYS_UEFI)
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typedef INT8 int8_t;
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typedef UINT8 uint8_t;
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typedef INT16 int16_t;
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typedef UINT16 uint16_t;
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typedef INT32 int32_t;
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typedef UINT32 uint32_t;
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typedef INT64 int64_t;
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typedef UINT64 uint64_t;
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# elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
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defined(__osf__) || defined(__sgi) || defined(__hpux) || \
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defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
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# include <inttypes.h>
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# elif defined(_MSC_VER) && _MSC_VER<1600
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/*
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* minimally required typdefs for systems not supporting inttypes.h or
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* stdint.h: currently just older VC++
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*/
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typedef signed char int8_t;
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typedef unsigned char uint8_t;
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typedef short int16_t;
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typedef unsigned short uint16_t;
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typedef int int32_t;
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typedef unsigned int uint32_t;
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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# else
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# include <stdint.h>
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# endif
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/* ossl_inline: portable inline definition usable in public headers */
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# if !defined(inline) && !defined(__cplusplus)
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# if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
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/* just use inline */
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# define ossl_inline inline
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# elif defined(__GNUC__) && __GNUC__>=2
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# define ossl_inline __inline__
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# elif defined(_MSC_VER)
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/*
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* Visual Studio: inline is available in C++ only, however
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* __inline is available for C, see
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* http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
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*/
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# define ossl_inline __inline
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# else
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# define ossl_inline
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# endif
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# else
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# define ossl_inline inline
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# endif
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# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && \
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!defined(__cplusplus)
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# define ossl_noreturn _Noreturn
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# elif defined(__GNUC__) && __GNUC__ >= 2
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# define ossl_noreturn __attribute__((noreturn))
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# else
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# define ossl_noreturn
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# endif
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/* ossl_unused: portable unused attribute for use in public headers */
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# if defined(__GNUC__)
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# define ossl_unused __attribute__((unused))
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# else
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# define ossl_unused
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# endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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