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
13 # include <openssl/opensslconf.h>
15 # include <openssl/e_os2.h>
16 # include <openssl/crypto.h>
17 # include "internal/nelem.h"
20 * <openssl/e_os2.h> contains what we can justify to make visible to the
21 * outside; this file e_os.h is not part of the exported interface.
28 /* Used to checking reference counts, most while doing perl5 stuff :-) */
29 # if defined(OPENSSL_NO_STDIO)
30 # if defined(REF_PRINT)
31 # error "REF_PRINT requires stdio"
36 * Format specifier for printing size_t. Original conundrum was to
37 * get it working with -Wformat [-Werror], which can be considered
38 * overzealous, especially in multi-platform context, but it's
42 # define OSSLzu "I64u" /* One would expect _WIN{64|32} cases after
43 * __STDC_VERSION__, but there are corner
44 * cases of MinGW compilers that link with
45 * non-compliant MSVCRT.DLL... */
46 # elif defined(_WIN32)
49 # define OSSLzu "u" /* VMS suffers from similar problem as MinGW,
50 * i.e. C RTL falling behind compiler. Recall
51 * that sizeof(size_t)==4 even in LP64 case. */
52 # elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
54 # elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__==4
55 # define OSSLzu "u" /* 'lu' should have worked, but when generating
56 * 32-bit code gcc still complains :-( */
58 # define OSSLzu "lu" /* To see that is works recall what does L
59 * stand for in ILP32 and LP64 */
62 # if !defined(NDEBUG) && !defined(OPENSSL_NO_STDIO)
63 # define REF_ASSERT_ISNT(test) \
64 (void)((test) ? (OPENSSL_die("refcount error", __FILE__, __LINE__), 1) : 0)
66 # define REF_ASSERT_ISNT(i)
69 # define REF_PRINT_COUNT(a, b) \
70 fprintf(stderr, "%p:%4d:%s\n", b, b->references, a)
72 # define REF_PRINT_COUNT(a, b)
75 # define OPENSSL_CONF "openssl.cnf"
79 * set this to a comma-separated list of 'random' device files to try out. By
80 * default, we will try to read at least one of these files
82 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
84 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
86 * set this to a comma-separated list of 'egd' sockets to try out. These
87 * sockets will be tried in the order listed in case accessing the device
88 * files listed in DEVRANDOM did not return enough randomness.
90 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
93 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
98 # define get_last_sys_error() errno
99 # define clear_sys_error() errno=0
101 /********************************************************************
102 The Microsoft section
103 ********************************************************************/
104 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
107 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
110 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
115 # undef get_last_sys_error
116 # undef clear_sys_error
117 # define get_last_sys_error() GetLastError()
118 # define clear_sys_error() SetLastError(0)
120 # define WIN_CONSOLE_BUG
125 # if (defined(WINDOWS) || defined(MSDOS))
129 # include <sys/stat.h>
130 # define _setmode setmode
131 # define _O_TEXT O_TEXT
132 # define _O_BINARY O_BINARY
133 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
134 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
136 # define DEVRANDOM "/dev/urandom\x24"
137 # endif /* __DJGPP__ */
140 # define S_IFDIR _S_IFDIR
144 # define S_IFMT _S_IFMT
147 # if !defined(WINNT) && !defined(__DJGPP__)
152 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
154 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
155 * Most notably we ought to check for availability of each specific
156 * routine that was introduced after denoted _WIN32_WINNT with
157 * GetProcAddress(). Normally newer functions are masked with higher
158 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
159 * some module, you'd need to override _WIN32_WINNT definition in
160 * the target module in order to "reach for" prototypes, but replace
161 * calls to new functions with indirect calls. Alternatively it
162 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
163 * and check for current OS version instead.
165 # define _WIN32_WINNT 0x0501
167 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
169 * Just like defining _WIN32_WINNT including winsock2.h implies
170 * certain "discipline" for maintaining [broad] binary compatibility.
171 * As long as structures are invariant among Winsock versions,
172 * it's sufficient to check for specific Winsock2 API availability
173 * at run-time [DSO_global_lookup is recommended]...
175 # include <winsock2.h>
176 # include <ws2tcpip.h>
177 /* yes, they have to be #included prior to <windows.h> */
179 # include <windows.h>
183 # if defined(_WIN32_WCE) && !defined(EACCES)
188 # define strlen(s) _strlen31(s)
189 /* cut strings to 2GB */
190 static __inline unsigned int _strlen31(const char *str)
192 unsigned int len = 0;
193 while (*str && len < 0x80000000U)
195 return len & 0x7FFFFFFF;
199 # if defined(_MSC_VER) && _MSC_VER<=1200 && defined(_MT) && defined(isspace)
200 /* compensate for bug in VC6 ctype.h */
207 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
208 # if _MSC_VER>=1300 && _MSC_VER<1600
213 # define stdin (&__iob_func()[0])
214 # define stdout (&__iob_func()[1])
215 # define stderr (&__iob_func()[2])
216 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
221 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
222 * or in other words with /MD. Declaring implicit import, i.e. with
223 * _imp_ prefix, works correctly with all compiler options, but
224 * without /MD results in LINK warning LNK4049: 'locally defined
225 * symbol "__iob" imported'.
227 extern FILE *_imp___iob;
228 # define stdin (&_imp___iob[0])
229 # define stdout (&_imp___iob[1])
230 # define stderr (&_imp___iob[2])
237 # ifdef OPENSSL_SYS_WINCE
238 # define OPENSSL_NO_POSIX_IO
241 # define EXIT(n) exit(n)
242 # define LIST_SEPARATOR_CHAR ';'
249 # ifdef OPENSSL_SYS_WINCE
250 # define DEFAULT_HOME ""
252 # define DEFAULT_HOME "C:"
255 /* Avoid Visual Studio 13 GetVersion deprecated problems */
256 # if defined(_MSC_VER) && _MSC_VER>=1800
257 # define check_winnt() (1)
258 # define check_win_minplat(x) (1)
260 # define check_winnt() (GetVersion() < 0x80000000)
261 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
264 # else /* The non-microsoft world */
266 # ifdef OPENSSL_SYS_VMS
269 * some programs don't include stdlib, so exit() and others give implicit
276 # include <unixlib.h>
278 # define LIST_SEPARATOR_CHAR ','
279 /* We don't have any well-defined random devices on VMS, yet... */
282 We need to do this since VMS has the following coding on status codes:
284 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
285 The important thing to know is that odd numbers are considered
286 good, while even ones are considered errors.
287 Bits 3-15: actual status number
288 Bits 16-27: facility number. 0 is considered "unknown"
289 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
290 output the message (which, for random codes, just looks ugly)
292 So, what we do here is to change 0 to 1 to get the default success status,
293 and everything else is shifted up to fit into the status number field, and
294 the status is tagged as an error, which is what is wanted here.
296 Finally, we add the VMS C facility code 0x35a000, because there are some
297 programs, such as Perl, that will reinterpret the code back to something
298 POSIXly. 'man perlvms' explains it further.
300 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
301 codes (status type = 1). I couldn't disagree more. Fortunately, the
302 status type doesn't seem to bother Perl.
305 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
307 # define DEFAULT_HOME "SYS$LOGIN:"
311 # ifdef OPENSSL_UNISTD
312 # include OPENSSL_UNISTD
316 # include <sys/types.h>
317 # ifdef OPENSSL_SYS_WIN32_CYGWIN
322 # define LIST_SEPARATOR_CHAR ':'
323 # define EXIT(n) exit(n)
328 /***********************************************/
330 # if defined(OPENSSL_SYS_WINDOWS)
331 # define strcasecmp _stricmp
332 # define strncasecmp _strnicmp
333 # if (_MSC_VER >= 1310)
335 # define fdopen _fdopen
336 # define close _close
338 # define strdup _strdup
340 # define unlink _unlink
341 # define fileno _fileno
344 # include <strings.h>
348 # if defined(OPENSSL_SYS_VXWORKS)
350 # include <tickLib.h>
352 # include <vxWorks.h>
353 # include <sockLib.h>
354 # include <taskLib.h>
356 # define TTY_STRUCT int
357 # define sleep(a) taskDelay((a) * sysClkRateGet())
360 * NOTE: these are implemented by helpers in database app! if the database is
361 * not linked, we need to implement them elsewhere
363 struct hostent *gethostbyname(const char *name);
364 struct hostent *gethostbyaddr(const char *addr, int length, int type);
365 struct servent *getservbyname(const char *name, const char *proto);
370 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
371 # define CRYPTO_memcmp memcmp