mirror of https://github.com/openssl/openssl.git
				
				
				
			
		
			
				
	
	
		
			311 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			311 lines
		
	
	
		
			9.2 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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|  *
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|  * Licensed under the Apache License 2.0 (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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| 
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| #ifndef OSSL_E_OS_H
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| # define OSSL_E_OS_H
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| 
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| # include <limits.h>
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| # include <openssl/opensslconf.h>
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| 
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| # include <openssl/e_os2.h>
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| # include <openssl/crypto.h>
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| # include "internal/nelem.h"
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| 
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| /*
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|  * <openssl/e_os2.h> contains what we can justify to make visible to the
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|  * outside; this file e_os.h is not part of the exported interface.
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|  */
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| 
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| # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
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| #  define NO_CHMOD
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| #  define NO_SYSLOG
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| # endif
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| 
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| # define get_last_sys_error()    errno
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| # define clear_sys_error()       errno=0
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| # define set_sys_error(e)        errno=(e)
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| 
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| /********************************************************************
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|  The Microsoft section
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|  ********************************************************************/
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| # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
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| #  define WIN32
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| # endif
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| # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
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| #  define WINDOWS
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| # endif
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| # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
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| #  define MSDOS
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| # endif
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| 
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| # ifdef WIN32
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| #  undef get_last_sys_error
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| #  undef clear_sys_error
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| #  undef set_sys_error
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| #  define get_last_sys_error()    GetLastError()
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| #  define clear_sys_error()       SetLastError(0)
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| #  define set_sys_error(e)        SetLastError(e)
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| #  if !defined(WINNT)
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| #   define WIN_CONSOLE_BUG
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| #  endif
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| # else
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| # endif
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| 
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| # if (defined(WINDOWS) || defined(MSDOS))
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| 
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| #  ifdef __DJGPP__
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| #   include <unistd.h>
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| #   include <sys/stat.h>
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| #   define _setmode setmode
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| #   define _O_TEXT O_TEXT
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| #   define _O_BINARY O_BINARY
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| #   define HAS_LFN_SUPPORT(name)  (pathconf((name), _PC_NAME_MAX) > 12)
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| #   undef DEVRANDOM_EGD  /*  Neither MS-DOS nor FreeDOS provide 'egd' sockets.  */
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| #   undef DEVRANDOM
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| #   define DEVRANDOM "/dev/urandom\x24"
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| #  endif                        /* __DJGPP__ */
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| 
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| #  ifndef S_IFDIR
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| #   define S_IFDIR     _S_IFDIR
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| #  endif
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| 
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| #  ifndef S_IFMT
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| #   define S_IFMT      _S_IFMT
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| #  endif
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| 
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| #  if !defined(WINNT) && !defined(__DJGPP__)
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| #   define NO_SYSLOG
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| #  endif
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| 
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| #  ifdef WINDOWS
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| #   if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
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|        /*
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|         * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
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|         * Most notably we ought to check for availability of each specific
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|         * routine that was introduced after denoted _WIN32_WINNT with
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|         * GetProcAddress(). Normally newer functions are masked with higher
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|         * _WIN32_WINNT in SDK headers. So that if you wish to use them in
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|         * some module, you'd need to override _WIN32_WINNT definition in
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|         * the target module in order to "reach for" prototypes, but replace
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|         * calls to new functions with indirect calls. Alternatively it
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|         * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
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|         * and check for current OS version instead.
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|         */
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| #    define _WIN32_WINNT 0x0501
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| #   endif
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| #   if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
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|        /*
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|         * Just like defining _WIN32_WINNT including winsock2.h implies
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|         * certain "discipline" for maintaining [broad] binary compatibility.
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|         * As long as structures are invariant among Winsock versions,
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|         * it's sufficient to check for specific Winsock2 API availability
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|         * at run-time [DSO_global_lookup is recommended]...
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|         */
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| #    include <winsock2.h>
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| #    include <ws2tcpip.h>
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|        /* yes, they have to be #included prior to <windows.h> */
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| #   endif
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| #   include <windows.h>
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| #   include <stdio.h>
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| #   include <stddef.h>
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| #   include <errno.h>
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| #   if defined(_WIN32_WCE) && !defined(EACCES)
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| #    define EACCES   13
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| #   endif
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| #   include <string.h>
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| #   ifdef _WIN64
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| #    define strlen(s) _strlen31(s)
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| /* cut strings to 2GB */
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| static __inline unsigned int _strlen31(const char *str)
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| {
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|     unsigned int len = 0;
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|     while (*str && len < 0x80000000U)
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|         str++, len++;
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|     return len & 0x7FFFFFFF;
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| }
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| #   endif
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| #   include <malloc.h>
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| #   if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
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| #    if _MSC_VER>=1300 && _MSC_VER<1600
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| #     undef stdin
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| #     undef stdout
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| #     undef stderr
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| FILE *__iob_func();
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| #     define stdin  (&__iob_func()[0])
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| #     define stdout (&__iob_func()[1])
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| #     define stderr (&__iob_func()[2])
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| #    elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
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| #     undef stdin
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| #     undef stdout
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| #     undef stderr
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|          /*
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|           * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
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|           * or in other words with /MD. Declaring implicit import, i.e. with
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|           * _imp_ prefix, works correctly with all compiler options, but
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|           * without /MD results in LINK warning LNK4049: 'locally defined
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|           * symbol "__iob" imported'.
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|           */
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| extern FILE *_imp___iob;
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| #     define stdin  (&_imp___iob[0])
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| #     define stdout (&_imp___iob[1])
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| #     define stderr (&_imp___iob[2])
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| #    endif
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| #   endif
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| #  endif
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| #  include <io.h>
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| #  include <fcntl.h>
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| 
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| #  ifdef OPENSSL_SYS_WINCE
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| #   define OPENSSL_NO_POSIX_IO
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| #  endif
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| 
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| #  define EXIT(n) exit(n)
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| #  define LIST_SEPARATOR_CHAR ';'
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| #  ifndef W_OK
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| #   define W_OK        2
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| #  endif
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| #  ifndef R_OK
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| #   define R_OK        4
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| #  endif
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| #  ifdef OPENSSL_SYS_WINCE
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| #   define DEFAULT_HOME  ""
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| #  else
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| #   define DEFAULT_HOME  "C:"
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| #  endif
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| 
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| /* Avoid Visual Studio 13 GetVersion deprecated problems */
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| #  if defined(_MSC_VER) && _MSC_VER>=1800
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| #   define check_winnt() (1)
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| #   define check_win_minplat(x) (1)
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| #  else
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| #   define check_winnt() (GetVersion() < 0x80000000)
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| #   define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
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| #  endif
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| 
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| # else                          /* The non-microsoft world */
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| 
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| #  if defined(OPENSSL_SYS_VXWORKS)
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| #   include <time.h>
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| #  else
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| #   include <sys/time.h>
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| #  endif
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| 
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| #  ifdef OPENSSL_SYS_VMS
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| #   define VMS 1
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|   /*
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|    * some programs don't include stdlib, so exit() and others give implicit
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|    * function warnings
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|    */
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| #   include <stdlib.h>
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| #   if defined(__DECC)
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| #    include <unistd.h>
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| #   else
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| #    include <unixlib.h>
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| #   endif
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| #   define LIST_SEPARATOR_CHAR ','
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|   /* We don't have any well-defined random devices on VMS, yet... */
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| #   undef DEVRANDOM
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|   /*-
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|      We need to do this since VMS has the following coding on status codes:
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| 
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|      Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
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|                The important thing to know is that odd numbers are considered
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|                good, while even ones are considered errors.
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|      Bits 3-15: actual status number
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|      Bits 16-27: facility number.  0 is considered "unknown"
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|      Bits 28-31: control bits.  If bit 28 is set, the shell won't try to
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|                  output the message (which, for random codes, just looks ugly)
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| 
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|      So, what we do here is to change 0 to 1 to get the default success status,
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|      and everything else is shifted up to fit into the status number field, and
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|      the status is tagged as an error, which is what is wanted here.
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| 
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|      Finally, we add the VMS C facility code 0x35a000, because there are some
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|      programs, such as Perl, that will reinterpret the code back to something
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|      POSIX.  'man perlvms' explains it further.
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| 
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|      NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
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|      codes (status type = 1).  I couldn't disagree more.  Fortunately, the
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|      status type doesn't seem to bother Perl.
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|      -- Richard Levitte
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|   */
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| #   define EXIT(n)  exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
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| 
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| #   define DEFAULT_HOME "SYS$LOGIN:"
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| 
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| #  else
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|      /* !defined VMS */
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| #   include <unistd.h>
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| #   include <sys/types.h>
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| #   ifdef OPENSSL_SYS_WIN32_CYGWIN
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| #    include <io.h>
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| #    include <fcntl.h>
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| #   endif
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| 
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| #   define LIST_SEPARATOR_CHAR ':'
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| #   define EXIT(n)             exit(n)
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| #  endif
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| 
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| # endif
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| 
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| /***********************************************/
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| 
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| # if defined(OPENSSL_SYS_WINDOWS)
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| #  define strcasecmp _stricmp
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| #  define strncasecmp _strnicmp
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| #  if (_MSC_VER >= 1310)
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| #   define open _open
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| #   define fdopen _fdopen
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| #   define close _close
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| #   ifndef strdup
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| #    define strdup _strdup
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| #   endif
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| #   define unlink _unlink
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| #   define fileno _fileno
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| #  endif
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| # else
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| #  include <strings.h>
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| # endif
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| 
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| /* vxworks */
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| # if defined(OPENSSL_SYS_VXWORKS)
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| #  include <ioLib.h>
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| #  include <tickLib.h>
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| #  include <sysLib.h>
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| #  include <vxWorks.h>
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| #  include <sockLib.h>
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| #  include <taskLib.h>
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| 
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| #  define TTY_STRUCT int
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| #  define sleep(a) taskDelay((a) * sysClkRateGet())
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| 
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| /*
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|  * NOTE: these are implemented by helpers in database app! if the database is
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|  * not linked, we need to implement them elsewhere
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|  */
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| struct hostent *gethostbyname(const char *name);
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| struct hostent *gethostbyaddr(const char *addr, int length, int type);
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| struct servent *getservbyname(const char *name, const char *proto);
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| 
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| # endif
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| /* end vxworks */
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| 
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| # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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| #  define CRYPTO_memcmp memcmp
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| # endif
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| 
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| /* unistd.h defines _POSIX_VERSION */
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| # if !defined(OPENSSL_NO_SECURE_MEMORY) && defined(OPENSSL_SYS_UNIX) \
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|      && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L)      \
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|           || defined(__sun) || defined(__hpux) || defined(__sgi)      \
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|           || defined(__osf__) )
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| #  define OPENSSL_SECURE_MEMORY  /* secure memory is implemented */
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| # endif
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| #endif
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