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2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 # define HEADER_E_OS_H
14 # include <openssl/opensslconf.h>
16 # include <openssl/e_os2.h>
17 # include <openssl/crypto.h>
18 # include "internal/nelem.h"
21 * <openssl/e_os2.h> contains what we can justify to make visible to the
22 * outside; this file e_os.h is not part of the exported interface.
30 * Format specifier for printing size_t. Original conundrum was to
31 * get it working with -Wformat [-Werror], which can be considered
32 * overzealous, especially in multi-platform context, but it's
36 # define OSSLzu "I64u" /* One would expect _WIN{64|32} cases after
37 * __STDC_VERSION__, but there are corner
38 * cases of MinGW compilers that link with
39 * non-compliant MSVCRT.DLL... */
40 # elif defined(_WIN32)
43 # define OSSLzu "u" /* VMS suffers from similar problem as MinGW,
44 * i.e. C RTL falling behind compiler. Recall
45 * that sizeof(size_t)==4 even in LP64 case. */
46 # elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
48 # elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__==4
49 # define OSSLzu "u" /* 'lu' should have worked, but when generating
50 * 32-bit code gcc still complains :-( */
52 # define OSSLzu "lu" /* To see that is works recall what does L
53 * stand for in ILP32 and LP64 */
56 # define OPENSSL_CONF "openssl.cnf"
60 * set this to a comma-separated list of 'random' device files to try out. By
61 * default, we will try to read at least one of these files
63 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
65 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
67 * set this to a comma-separated list of 'egd' sockets to try out. These
68 * sockets will be tried in the order listed in case accessing the device
69 * files listed in DEVRANDOM did not return enough randomness.
71 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
74 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
79 # define get_last_sys_error() errno
80 # define clear_sys_error() errno=0
82 /********************************************************************
84 ********************************************************************/
85 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
88 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
91 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
96 # undef get_last_sys_error
97 # undef clear_sys_error
98 # define get_last_sys_error() GetLastError()
99 # define clear_sys_error() SetLastError(0)
101 # define WIN_CONSOLE_BUG
106 # if (defined(WINDOWS) || defined(MSDOS))
110 # include <sys/stat.h>
111 # define _setmode setmode
112 # define _O_TEXT O_TEXT
113 # define _O_BINARY O_BINARY
114 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
115 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
117 # define DEVRANDOM "/dev/urandom\x24"
118 # endif /* __DJGPP__ */
121 # define S_IFDIR _S_IFDIR
125 # define S_IFMT _S_IFMT
128 # if !defined(WINNT) && !defined(__DJGPP__)
133 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
135 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
136 * Most notably we ought to check for availability of each specific
137 * routine that was introduced after denoted _WIN32_WINNT with
138 * GetProcAddress(). Normally newer functions are masked with higher
139 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
140 * some module, you'd need to override _WIN32_WINNT definition in
141 * the target module in order to "reach for" prototypes, but replace
142 * calls to new functions with indirect calls. Alternatively it
143 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
144 * and check for current OS version instead.
146 # define _WIN32_WINNT 0x0501
148 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
150 * Just like defining _WIN32_WINNT including winsock2.h implies
151 * certain "discipline" for maintaining [broad] binary compatibility.
152 * As long as structures are invariant among Winsock versions,
153 * it's sufficient to check for specific Winsock2 API availability
154 * at run-time [DSO_global_lookup is recommended]...
156 # include <winsock2.h>
157 # include <ws2tcpip.h>
158 /* yes, they have to be #included prior to <windows.h> */
160 # include <windows.h>
164 # if defined(_WIN32_WCE) && !defined(EACCES)
169 # define strlen(s) _strlen31(s)
170 /* cut strings to 2GB */
171 static __inline
unsigned int _strlen31(const char *str
)
173 unsigned int len
= 0;
174 while (*str
&& len
< 0x80000000U
)
176 return len
& 0x7FFFFFFF;
180 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
181 # if _MSC_VER>=1300 && _MSC_VER<1600
186 # define stdin (&__iob_func()[0])
187 # define stdout (&__iob_func()[1])
188 # define stderr (&__iob_func()[2])
189 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
194 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
195 * or in other words with /MD. Declaring implicit import, i.e. with
196 * _imp_ prefix, works correctly with all compiler options, but
197 * without /MD results in LINK warning LNK4049: 'locally defined
198 * symbol "__iob" imported'.
200 extern FILE *_imp___iob
;
201 # define stdin (&_imp___iob[0])
202 # define stdout (&_imp___iob[1])
203 # define stderr (&_imp___iob[2])
210 # ifdef OPENSSL_SYS_WINCE
211 # define OPENSSL_NO_POSIX_IO
214 # define EXIT(n) exit(n)
215 # define LIST_SEPARATOR_CHAR ';'
222 # ifdef OPENSSL_SYS_WINCE
223 # define DEFAULT_HOME ""
225 # define DEFAULT_HOME "C:"
228 /* Avoid Visual Studio 13 GetVersion deprecated problems */
229 # if defined(_MSC_VER) && _MSC_VER>=1800
230 # define check_winnt() (1)
231 # define check_win_minplat(x) (1)
233 # define check_winnt() (GetVersion() < 0x80000000)
234 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
237 # else /* The non-microsoft world */
239 # ifdef OPENSSL_SYS_VMS
242 * some programs don't include stdlib, so exit() and others give implicit
249 # include <unixlib.h>
251 # define LIST_SEPARATOR_CHAR ','
252 /* We don't have any well-defined random devices on VMS, yet... */
255 We need to do this since VMS has the following coding on status codes:
257 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
258 The important thing to know is that odd numbers are considered
259 good, while even ones are considered errors.
260 Bits 3-15: actual status number
261 Bits 16-27: facility number. 0 is considered "unknown"
262 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
263 output the message (which, for random codes, just looks ugly)
265 So, what we do here is to change 0 to 1 to get the default success status,
266 and everything else is shifted up to fit into the status number field, and
267 the status is tagged as an error, which is what is wanted here.
269 Finally, we add the VMS C facility code 0x35a000, because there are some
270 programs, such as Perl, that will reinterpret the code back to something
271 POSIXly. 'man perlvms' explains it further.
273 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
274 codes (status type = 1). I couldn't disagree more. Fortunately, the
275 status type doesn't seem to bother Perl.
278 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
280 # define DEFAULT_HOME "SYS$LOGIN:"
284 # ifdef OPENSSL_UNISTD
285 # include OPENSSL_UNISTD
289 # include <sys/types.h>
290 # ifdef OPENSSL_SYS_WIN32_CYGWIN
295 # define LIST_SEPARATOR_CHAR ':'
296 # define EXIT(n) exit(n)
301 /***********************************************/
303 # if defined(OPENSSL_SYS_WINDOWS)
304 # define strcasecmp _stricmp
305 # define strncasecmp _strnicmp
306 # if (_MSC_VER >= 1310)
308 # define fdopen _fdopen
309 # define close _close
311 # define strdup _strdup
313 # define unlink _unlink
314 # define fileno _fileno
317 # include <strings.h>
321 # if defined(OPENSSL_SYS_VXWORKS)
323 # include <tickLib.h>
325 # include <vxWorks.h>
326 # include <sockLib.h>
327 # include <taskLib.h>
329 # define TTY_STRUCT int
330 # define sleep(a) taskDelay((a) * sysClkRateGet())
333 * NOTE: these are implemented by helpers in database app! if the database is
334 * not linked, we need to implement them elsewhere
336 struct hostent
*gethostbyname(const char *name
);
337 struct hostent
*gethostbyaddr(const char *addr
, int length
, int type
);
338 struct servent
*getservbyname(const char *name
, const char *proto
);
343 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
344 # define CRYPTO_memcmp memcmp