| 1 | /*
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| 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #ifndef OSSL_E_OS_H
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| 11 | # define OSSL_E_OS_H
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| 12 |
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| 13 | # include <limits.h>
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| 14 | # include <openssl/opensslconf.h>
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| 15 |
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| 16 | # include <openssl/e_os2.h>
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| 17 | # include <openssl/crypto.h>
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| 18 | # include "internal/nelem.h"
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| 19 |
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| 20 | /*
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| 21 | * <openssl/e_os2.h> contains what we can justify to make visible to the
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| 22 | * outside; this file e_os.h is not part of the exported interface.
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| 23 | */
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| 24 |
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| 25 | # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
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| 26 | # define NO_CHMOD
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| 27 | # define NO_SYSLOG
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| 28 | # endif
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| 29 |
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| 30 | # define get_last_sys_error() errno
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| 31 | # define clear_sys_error() errno=0
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| 32 | # define set_sys_error(e) errno=(e)
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| 33 |
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| 34 | /********************************************************************
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| 35 | The Microsoft section
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| 36 | ********************************************************************/
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| 37 | # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
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| 38 | # define WIN32
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| 39 | # endif
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| 40 | # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
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| 41 | # define WINDOWS
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| 42 | # endif
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| 43 | # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
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| 44 | # define MSDOS
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| 45 | # endif
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| 46 |
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| 47 | # ifdef WIN32
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| 48 | # undef get_last_sys_error
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| 49 | # undef clear_sys_error
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| 50 | # undef set_sys_error
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| 51 | # define get_last_sys_error() GetLastError()
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| 52 | # define clear_sys_error() SetLastError(0)
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| 53 | # define set_sys_error(e) SetLastError(e)
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| 54 | # if !defined(WINNT)
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| 55 | # define WIN_CONSOLE_BUG
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| 56 | # endif
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| 57 | # else
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| 58 | # endif
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| 59 |
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| 60 | # if (defined(WINDOWS) || defined(MSDOS))
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| 61 |
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| 62 | # ifdef __DJGPP__
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| 63 | # include <unistd.h>
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| 64 | # include <sys/stat.h>
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| 65 | # define _setmode setmode
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| 66 | # define _O_TEXT O_TEXT
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| 67 | # define _O_BINARY O_BINARY
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| 68 | # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
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| 69 | # undef DEVRANDOM
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| 70 | # define DEVRANDOM "/dev/urandom\x24"
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| 71 | # endif /* __DJGPP__ */
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| 72 |
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| 73 | # ifndef S_IFDIR
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| 74 | # define S_IFDIR _S_IFDIR
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| 75 | # endif
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| 76 |
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| 77 | # ifndef S_IFMT
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| 78 | # define S_IFMT _S_IFMT
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| 79 | # endif
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| 80 |
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| 81 | # if !defined(WINNT) && !defined(__DJGPP__)
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| 82 | # define NO_SYSLOG
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| 83 | # endif
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| 84 |
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| 85 | # ifdef WINDOWS
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| 86 | # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
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| 87 | /*
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| 88 | * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
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| 89 | * Most notably we ought to check for availability of each specific
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| 90 | * routine that was introduced after denoted _WIN32_WINNT with
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| 91 | * GetProcAddress(). Normally newer functions are masked with higher
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| 92 | * _WIN32_WINNT in SDK headers. So that if you wish to use them in
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| 93 | * some module, you'd need to override _WIN32_WINNT definition in
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| 94 | * the target module in order to "reach for" prototypes, but replace
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| 95 | * calls to new functions with indirect calls. Alternatively it
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| 96 | * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
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| 97 | * and check for current OS version instead.
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| 98 | */
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| 99 | # define _WIN32_WINNT 0x0501
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| 100 | # endif
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| 101 | # ifndef IN_RING0 /* bird */
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| 102 | # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
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| 103 | /*
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| 104 | * Just like defining _WIN32_WINNT including winsock2.h implies
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| 105 | * certain "discipline" for maintaining [broad] binary compatibility.
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| 106 | * As long as structures are invariant among Winsock versions,
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| 107 | * it's sufficient to check for specific Winsock2 API availability
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| 108 | * at run-time [DSO_global_lookup is recommended]...
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| 109 | */
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| 110 | # ifdef VBOX
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| 111 | # include <iprt/win/winsock2.h>
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| 112 | # include <iprt/win/ws2tcpip.h>
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| 113 | # endif
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| 114 | # include <winsock2.h>
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| 115 | # include <ws2tcpip.h>
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| 116 | /*
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| 117 | * Clang-based C++Builder 10.3.3 toolchains cannot find C inline
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| 118 | * definitions at link-time. This header defines WspiapiLoad() as an
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| 119 | * __inline function. https://quality.embarcadero.com/browse/RSP-33806
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| 120 | */
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| 121 | # if !defined(__BORLANDC__) || !defined(__clang__)
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| 122 | # include <wspiapi.h>
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| 123 | # endif
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| 124 | /* yes, they have to be #included prior to <windows.h> */
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| 125 | # endif
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| 126 | # ifdef VBOX
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| 127 | # include <iprt/win/windows.h>
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| 128 | # else
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| 129 | # include <windows.h>
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| 130 | # endif
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| 131 | # endif /* bird */
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| 132 | # include <stdio.h>
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| 133 | # include <stddef.h>
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| 134 | # include <errno.h>
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| 135 | # if defined(_WIN32_WCE) && !defined(EACCES)
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| 136 | # define EACCES 13
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| 137 | # endif
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| 138 | # include <string.h>
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| 139 | # ifdef _WIN64
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| 140 | # define strlen(s) _strlen31(s)
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| 141 | /* cut strings to 2GB */
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| 142 | # ifndef VBOX
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| 143 | static __inline unsigned int _strlen31(const char *str)
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| 144 | # else
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| 145 | static __inline size_t _strlen31(const char *str)
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| 146 | # endif
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| 147 | {
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| 148 | unsigned int len = 0;
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| 149 | while (*str && len < 0x80000000U)
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| 150 | str++, len++;
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| 151 | return len & 0x7FFFFFFF;
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| 152 | }
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| 153 | # endif
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| 154 | # include <malloc.h>
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| 155 | # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
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| 156 | # if _MSC_VER>=1300 && _MSC_VER<1600
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| 157 | # undef stdin
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| 158 | # undef stdout
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| 159 | # undef stderr
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| 160 | FILE * __cdecl __iob_func(); /* vbox/bird: added __cdecl */
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| 161 | # define stdin (&__iob_func()[0])
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| 162 | # define stdout (&__iob_func()[1])
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| 163 | # define stderr (&__iob_func()[2])
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| 164 | # endif
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| 165 | # endif
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| 166 | # endif
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| 167 | # include <io.h>
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| 168 | # include <fcntl.h>
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| 169 |
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| 170 | # ifdef OPENSSL_SYS_WINCE
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| 171 | # define OPENSSL_NO_POSIX_IO
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| 172 | # endif
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| 173 |
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| 174 | # define EXIT(n) exit(n)
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| 175 | # define LIST_SEPARATOR_CHAR ';'
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| 176 | # ifndef W_OK
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| 177 | # define W_OK 2
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| 178 | # endif
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| 179 | # ifndef R_OK
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| 180 | # define R_OK 4
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| 181 | # endif
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| 182 | # ifdef OPENSSL_SYS_WINCE
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| 183 | # define DEFAULT_HOME ""
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| 184 | # else
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| 185 | # define DEFAULT_HOME "C:"
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| 186 | # endif
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| 187 |
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| 188 | /* Avoid Visual Studio 13 GetVersion deprecated problems */
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| 189 | # if defined(_MSC_VER) && _MSC_VER>=1800
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| 190 | # define check_winnt() (1)
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| 191 | # define check_win_minplat(x) (1)
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| 192 | # else
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| 193 | # define check_winnt() (GetVersion() < 0x80000000)
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| 194 | # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
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| 195 | # endif
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| 196 |
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| 197 | # else /* The non-microsoft world */
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| 198 |
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| 199 | # if defined(OPENSSL_SYS_VXWORKS)
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| 200 | # include <time.h>
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| 201 | # else
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| 202 | # include <sys/time.h>
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| 203 | # endif
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| 204 |
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| 205 | # ifdef OPENSSL_SYS_VMS
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| 206 | # define VMS 1
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| 207 | /*
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| 208 | * some programs don't include stdlib, so exit() and others give implicit
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| 209 | * function warnings
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| 210 | */
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| 211 | # include <stdlib.h>
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| 212 | # if defined(__DECC)
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| 213 | # include <unistd.h>
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| 214 | # else
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| 215 | # include <unixlib.h>
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| 216 | # endif
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| 217 | # define LIST_SEPARATOR_CHAR ','
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| 218 | /* We don't have any well-defined random devices on VMS, yet... */
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| 219 | # undef DEVRANDOM
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| 220 | /*-
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| 221 | We need to do this since VMS has the following coding on status codes:
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| 222 |
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| 223 | Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
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| 224 | The important thing to know is that odd numbers are considered
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| 225 | good, while even ones are considered errors.
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| 226 | Bits 3-15: actual status number
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| 227 | Bits 16-27: facility number. 0 is considered "unknown"
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| 228 | Bits 28-31: control bits. If bit 28 is set, the shell won't try to
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| 229 | output the message (which, for random codes, just looks ugly)
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| 230 |
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| 231 | So, what we do here is to change 0 to 1 to get the default success status,
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| 232 | and everything else is shifted up to fit into the status number field, and
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| 233 | the status is tagged as an error, which is what is wanted here.
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| 234 |
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| 235 | Finally, we add the VMS C facility code 0x35a000, because there are some
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| 236 | programs, such as Perl, that will reinterpret the code back to something
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| 237 | POSIX. 'man perlvms' explains it further.
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| 238 |
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| 239 | NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
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| 240 | codes (status type = 1). I couldn't disagree more. Fortunately, the
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| 241 | status type doesn't seem to bother Perl.
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| 242 | -- Richard Levitte
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| 243 | */
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| 244 | # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
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| 245 |
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| 246 | # define DEFAULT_HOME "SYS$LOGIN:"
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| 247 |
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| 248 | # else
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| 249 | /* !defined VMS */
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| 250 | # include <unistd.h>
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| 251 | # include <sys/types.h>
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| 252 | # ifdef OPENSSL_SYS_WIN32_CYGWIN
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| 253 | # include <io.h>
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| 254 | # include <fcntl.h>
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| 255 | # endif
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| 256 |
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| 257 | # define LIST_SEPARATOR_CHAR ':'
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| 258 | # define EXIT(n) exit(n)
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| 259 | # endif
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| 260 |
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| 261 | # endif
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| 262 |
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| 263 | /***********************************************/
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| 264 |
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| 265 | # if defined(OPENSSL_SYS_WINDOWS)
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| 266 | # define strcasecmp _stricmp
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| 267 | # define strncasecmp _strnicmp
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| 268 | # if (_MSC_VER >= 1310) && !defined(_WIN32_WCE)
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| 269 | # define open _open
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| 270 | # define fdopen _fdopen
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| 271 | # define close _close
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| 272 | # ifndef strdup
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| 273 | # define strdup _strdup
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| 274 | # endif
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| 275 | # define unlink _unlink
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| 276 | # define fileno _fileno
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| 277 | # endif
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| 278 | # else
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| 279 | # include <strings.h>
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| 280 | # endif
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| 281 |
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| 282 | /* vxworks */
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| 283 | # if defined(OPENSSL_SYS_VXWORKS)
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| 284 | # include <ioLib.h>
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| 285 | # include <tickLib.h>
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| 286 | # include <sysLib.h>
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| 287 | # include <vxWorks.h>
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| 288 | # include <sockLib.h>
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| 289 | # include <taskLib.h>
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| 290 |
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| 291 | # define TTY_STRUCT int
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| 292 | # define sleep(a) taskDelay((a) * sysClkRateGet())
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| 293 |
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| 294 | /*
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| 295 | * NOTE: these are implemented by helpers in database app! if the database is
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| 296 | * not linked, we need to implement them elsewhere
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| 297 | */
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| 298 | struct hostent *gethostbyname(const char *name);
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| 299 | struct hostent *gethostbyaddr(const char *addr, int length, int type);
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| 300 | struct servent *getservbyname(const char *name, const char *proto);
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| 301 |
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| 302 | # endif
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| 303 | /* end vxworks */
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| 304 |
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| 305 | /* system-specific variants defining ossl_sleep() */
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| 306 | #ifdef OPENSSL_SYS_UNIX
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| 307 | # include <unistd.h>
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| 308 | static ossl_inline void ossl_sleep(unsigned long millis)
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| 309 | {
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| 310 | # ifdef OPENSSL_SYS_VXWORKS
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| 311 | struct timespec ts;
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| 312 | ts.tv_sec = (long int) (millis / 1000);
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| 313 | ts.tv_nsec = (long int) (millis % 1000) * 1000000ul;
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| 314 | nanosleep(&ts, NULL);
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| 315 | # elif defined(__TANDEM)
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| 316 | # if !defined(_REENTRANT)
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| 317 | # include <cextdecs.h(PROCESS_DELAY_)>
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| 318 | /* HPNS does not support usleep for non threaded apps */
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| 319 | PROCESS_DELAY_(millis * 1000);
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| 320 | # elif defined(_SPT_MODEL_)
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| 321 | # include <spthread.h>
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| 322 | # include <spt_extensions.h>
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| 323 | usleep(millis * 1000);
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| 324 | # else
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| 325 | usleep(millis * 1000);
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| 326 | # endif
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| 327 | # else
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| 328 | usleep(millis * 1000);
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| 329 | # endif
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| 330 | }
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| 331 | #elif defined(_WIN32)
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| 332 | # include <windows.h>
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| 333 | static ossl_inline void ossl_sleep(unsigned long millis)
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| 334 | {
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| 335 | Sleep(millis);
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| 336 | }
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| 337 | #else
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| 338 | /* Fallback to a busy wait */
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| 339 | static ossl_inline void ossl_sleep(unsigned long millis)
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| 340 | {
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| 341 | struct timeval start, now;
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| 342 | unsigned long elapsedms;
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| 343 |
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| 344 | gettimeofday(&start, NULL);
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| 345 | do {
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| 346 | gettimeofday(&now, NULL);
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| 347 | elapsedms = (((now.tv_sec - start.tv_sec) * 1000000)
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| 348 | + now.tv_usec - start.tv_usec) / 1000;
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| 349 | } while (elapsedms < millis);
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| 350 | }
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| 351 | #endif /* defined OPENSSL_SYS_UNIX */
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| 352 |
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| 353 | /* ----------------------------- HP NonStop -------------------------------- */
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| 354 | /* Required to support platform variant without getpid() and pid_t. */
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| 355 | # if defined(__TANDEM) && defined(_GUARDIAN_TARGET)
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| 356 | # include <strings.h>
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| 357 | # include <netdb.h>
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| 358 | # define getservbyname(name,proto) getservbyname((char*)name,proto)
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| 359 | # define gethostbyname(name) gethostbyname((char*)name)
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| 360 | # define ioctlsocket(a,b,c) ioctl(a,b,c)
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| 361 | # ifdef NO_GETPID
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| 362 | inline int nssgetpid();
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| 363 | # ifndef NSSGETPID_MACRO
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| 364 | # define NSSGETPID_MACRO
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| 365 | # include <cextdecs.h(PROCESSHANDLE_GETMINE_)>
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| 366 | # include <cextdecs.h(PROCESSHANDLE_DECOMPOSE_)>
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| 367 | inline int nssgetpid()
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| 368 | {
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| 369 | short phandle[10]={0};
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| 370 | union pseudo_pid {
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| 371 | struct {
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| 372 | short cpu;
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| 373 | short pin;
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| 374 | } cpu_pin ;
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| 375 | int ppid;
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| 376 | } ppid = { 0 };
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| 377 | PROCESSHANDLE_GETMINE_(phandle);
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| 378 | PROCESSHANDLE_DECOMPOSE_(phandle, &ppid.cpu_pin.cpu, &ppid.cpu_pin.pin);
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| 379 | return ppid.ppid;
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| 380 | }
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| 381 | # define getpid(a) nssgetpid(a)
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| 382 | # endif /* NSSGETPID_MACRO */
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| 383 | # endif /* NO_GETPID */
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| 384 | /*# define setsockopt(a,b,c,d,f) setsockopt(a,b,c,(char*)d,f)*/
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| 385 | /*# define getsockopt(a,b,c,d,f) getsockopt(a,b,c,(char*)d,f)*/
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| 386 | /*# define connect(a,b,c) connect(a,(struct sockaddr *)b,c)*/
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| 387 | /*# define bind(a,b,c) bind(a,(struct sockaddr *)b,c)*/
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| 388 | /*# define sendto(a,b,c,d,e,f) sendto(a,(char*)b,c,d,(struct sockaddr *)e,f)*/
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| 389 | # if defined(OPENSSL_THREADS) && !defined(_PUT_MODEL_)
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| 390 | /*
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| 391 | * HPNS SPT threads
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| 392 | */
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| 393 | # define SPT_THREAD_SIGNAL 1
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| 394 | # define SPT_THREAD_AWARE 1
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| 395 | # include <spthread.h>
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| 396 | # undef close
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| 397 | # define close spt_close
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| 398 | /*
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| 399 | # define get_last_socket_error() errno
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| 400 | # define clear_socket_error() errno=0
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| 401 | # define ioctlsocket(a,b,c) ioctl(a,b,c)
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| 402 | # define closesocket(s) close(s)
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| 403 | # define readsocket(s,b,n) read((s),(char*)(b),(n))
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| 404 | # define writesocket(s,b,n) write((s),(char*)(b),(n)
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| 405 | */
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| 406 | # define accept(a,b,c) accept(a,(struct sockaddr *)b,c)
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| 407 | # define recvfrom(a,b,c,d,e,f) recvfrom(a,b,(socklen_t)c,d,e,f)
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| 408 | # endif
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| 409 | # endif
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| 410 |
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| 411 | # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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| 412 | # define CRYPTO_memcmp memcmp
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| 413 | # endif
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| 414 |
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| 415 | # ifndef OPENSSL_NO_SECURE_MEMORY
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| 416 | /* unistd.h defines _POSIX_VERSION */
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| 417 | # if (defined(OPENSSL_SYS_UNIX) \
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| 418 | && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) \
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| 419 | || defined(__sun) || defined(__hpux) || defined(__sgi) \
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| 420 | || defined(__osf__) )) \
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| 421 | || defined(_WIN32)
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| 422 | /* secure memory is implemented */
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| 423 | # else
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| 424 | # define OPENSSL_NO_SECURE_MEMORY
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| 425 | # endif
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| 426 | # endif
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| 427 |
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| 428 | #endif
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