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openssl
e_os2.h
/* * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef HEADER_E_OS2_H # define HEADER_E_OS2_H # include <openssl/opensslconf.h> #ifdef __cplusplus extern "C" { #endif /****************************************************************************** * Detect operating systems. This probably needs completing. * The result is that at least one OPENSSL_SYS_os macro should be defined. * However, if none is defined, Unix is assumed. **/ # define OPENSSL_SYS_UNIX /* --------------------- Microsoft operating systems ---------------------- */ /* * Note that MSDOS actually denotes 32-bit environments running on top of * MS-DOS, such as DJGPP one. */ # if defined(OPENSSL_SYS_MSDOS) # undef OPENSSL_SYS_UNIX # endif /* * For 32 bit environment, there seems to be the CygWin environment and then * all the others that try to do the same thing Microsoft does... */ /* * UEFI lives here because it might be built with a Microsoft toolchain and * we need to avoid the false positive match on Windows. */ # if defined(OPENSSL_SYS_UEFI) # undef OPENSSL_SYS_UNIX # elif defined(OPENSSL_SYS_UWIN) # undef OPENSSL_SYS_UNIX # define OPENSSL_SYS_WIN32_UWIN # else # if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN) # define OPENSSL_SYS_WIN32_CYGWIN # else # if defined(_WIN32) || defined(OPENSSL_SYS_WIN32) # undef OPENSSL_SYS_UNIX # if !defined(OPENSSL_SYS_WIN32) # define OPENSSL_SYS_WIN32 # endif # endif # if defined(_WIN64) || defined(OPENSSL_SYS_WIN64) # undef OPENSSL_SYS_UNIX # if !defined(OPENSSL_SYS_WIN64) # define OPENSSL_SYS_WIN64 # endif # endif # if defined(OPENSSL_SYS_WINNT) # undef OPENSSL_SYS_UNIX # endif # if defined(OPENSSL_SYS_WINCE) # undef OPENSSL_SYS_UNIX # endif # endif # endif /* Anything that tries to look like Microsoft is "Windows" */ # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE) # undef OPENSSL_SYS_UNIX # define OPENSSL_SYS_WINDOWS # ifndef OPENSSL_SYS_MSDOS # define OPENSSL_SYS_MSDOS # endif # endif /* * DLL settings. This part is a bit tough, because it's up to the * application implementor how he or she will link the application, so it * requires some macro to be used. */ # ifdef OPENSSL_SYS_WINDOWS # ifndef OPENSSL_OPT_WINDLL # if defined(_WINDLL) /* This is used when building OpenSSL to * indicate that DLL linkage should be used */ # define OPENSSL_OPT_WINDLL # endif # endif # endif /* ------------------------------- OpenVMS -------------------------------- */ # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS) # if !defined(OPENSSL_SYS_VMS) # undef OPENSSL_SYS_UNIX # endif # define OPENSSL_SYS_VMS # if defined(__DECC) # define OPENSSL_SYS_VMS_DECC # elif defined(__DECCXX) # define OPENSSL_SYS_VMS_DECC # define OPENSSL_SYS_VMS_DECCXX # else # define OPENSSL_SYS_VMS_NODECC # endif # endif /* -------------------------------- Unix ---------------------------------- */ # ifdef OPENSSL_SYS_UNIX # if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX) # define OPENSSL_SYS_LINUX # endif # if defined(_AIX) && !defined(OPENSSL_SYS_AIX) # define OPENSSL_SYS_AIX # endif # endif /* -------------------------------- VOS ----------------------------------- */ # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS) # define OPENSSL_SYS_VOS # ifdef __HPPA__ # define OPENSSL_SYS_VOS_HPPA # endif # ifdef __IA32__ # define OPENSSL_SYS_VOS_IA32 # endif # endif /** * That's it for OS-specific stuff *****************************************************************************/ /* Specials for I/O an exit */ # ifdef OPENSSL_SYS_MSDOS # define OPENSSL_UNISTD_IO <io.h> # define OPENSSL_DECLARE_EXIT extern void exit(int); # else # define OPENSSL_UNISTD_IO OPENSSL_UNISTD # define OPENSSL_DECLARE_EXIT /* declared in unistd.h */ # endif /*- * OPENSSL_EXTERN is normally used to declare a symbol with possible extra * attributes to handle its presence in a shared library. * OPENSSL_EXPORT is used to define a symbol with extra possible attributes * to make it visible in a shared library. * Care needs to be taken when a header file is used both to declare and * define symbols. Basically, for any library that exports some global * variables, the following code must be present in the header file that * declares them, before OPENSSL_EXTERN is used: * * #ifdef SOME_BUILD_FLAG_MACRO * # undef OPENSSL_EXTERN * # define OPENSSL_EXTERN OPENSSL_EXPORT * #endif * * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN * have some generally sensible values. */ # if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL) # define OPENSSL_EXPORT extern __declspec(dllexport) # define OPENSSL_EXTERN extern __declspec(dllimport) # else # define OPENSSL_EXPORT extern # define OPENSSL_EXTERN extern # endif /*- * Macros to allow global variables to be reached through function calls when * required (if a shared library version requires it, for example. * The way it's done allows definitions like this: * * // in foobar.c * OPENSSL_IMPLEMENT_GLOBAL(int,foobar,0) * // in foobar.h * OPENSSL_DECLARE_GLOBAL(int,foobar); * #define foobar OPENSSL_GLOBAL_REF(foobar) */ # ifdef OPENSSL_EXPORT_VAR_AS_FUNCTION # define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) \ type *_shadow_##name(void) \ { static type _hide_##name=value; return &_hide_##name; } # define OPENSSL_DECLARE_GLOBAL(type,name) type *_shadow_##name(void) # define OPENSSL_GLOBAL_REF(name) (*(_shadow_##name())) # else # define OPENSSL_IMPLEMENT_GLOBAL(type,name,value) type _shadow_##name=value; # define OPENSSL_DECLARE_GLOBAL(type,name) OPENSSL_EXPORT type _shadow_##name # define OPENSSL_GLOBAL_REF(name) _shadow_##name # endif # ifdef _WIN32 # ifdef _WIN64 # define ossl_ssize_t __int64 # define OSSL_SSIZE_MAX _I64_MAX # else # define ossl_ssize_t int # define OSSL_SSIZE_MAX INT_MAX # endif # endif # if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t) # define ossl_ssize_t INTN # define OSSL_SSIZE_MAX MAX_INTN # endif # ifndef ossl_ssize_t # define ossl_ssize_t ssize_t # if defined(SSIZE_MAX) # define OSSL_SSIZE_MAX SSIZE_MAX # elif defined(_POSIX_SSIZE_MAX) # define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX # else # define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1)) # endif # endif # ifdef DEBUG_UNUSED # define __owur __attribute__((__warn_unused_result__)) # else # define __owur # endif /* Standard integer types */ # if defined(OPENSSL_SYS_UEFI) typedef INT8 int8_t; typedef UINT8 uint8_t; typedef INT16 int16_t; typedef UINT16 uint16_t; typedef INT32 int32_t; typedef UINT32 uint32_t; typedef INT64 int64_t; typedef UINT64 uint64_t; # elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ defined(__osf__) || defined(__sgi) || defined(__hpux) || \ defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__) # include <inttypes.h> # elif defined(_MSC_VER) && _MSC_VER<1600 /* * minimally required typdefs for systems not supporting inttypes.h or * stdint.h: currently just older VC++ */ typedef signed char int8_t; typedef unsigned char uint8_t; typedef short int16_t; typedef unsigned short uint16_t; typedef int int32_t; typedef unsigned int uint32_t; typedef __int64 int64_t; typedef unsigned __int64 uint64_t; # else # include <stdint.h> # endif /* ossl_inline: portable inline definition usable in public headers */ # if !defined(inline) && !defined(__cplusplus) # if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L /* just use inline */ # define ossl_inline inline # elif defined(__GNUC__) && __GNUC__>=2 # define ossl_inline __inline__ # elif defined(_MSC_VER) /* * Visual Studio: inline is available in C++ only, however * __inline is available for C, see * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx */ # define ossl_inline __inline # else # define ossl_inline # endif # else # define ossl_inline inline # endif # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L # define ossl_noreturn _Noreturn # elif defined(__GNUC__) && __GNUC__ >= 2 # define ossl_noreturn __attribute__((noreturn)) # else # define ossl_noreturn # endif /* ossl_unused: portable unused attribute for use in public headers */ # if defined(__GNUC__) # define ossl_unused __attribute__((unused)) # else # define ossl_unused # endif #ifdef __cplusplus } #endif #endif
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