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 */
58 * set this to a comma-separated list of 'random' device files to try out. By
59 * default, we will try to read at least one of these files
61 # if defined(__s390__)
62 # define DEVRANDOM "/dev/prandom","/dev/urandom","/dev/hwrng","/dev/random"
64 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
67 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
69 * set this to a comma-separated list of 'egd' sockets to try out. These
70 * sockets will be tried in the order listed in case accessing the device
71 * files listed in DEVRANDOM did not return enough randomness.
73 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
76 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
81 # define get_last_sys_error() errno
82 # define clear_sys_error() errno=0
84 /********************************************************************
86 ********************************************************************/
87 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
90 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
93 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
98 # undef get_last_sys_error
99 # undef clear_sys_error
100 # define get_last_sys_error() GetLastError()
101 # define clear_sys_error() SetLastError(0)
103 # define WIN_CONSOLE_BUG
108 # if (defined(WINDOWS) || defined(MSDOS))
112 # include <sys/stat.h>
113 # define _setmode setmode
114 # define _O_TEXT O_TEXT
115 # define _O_BINARY O_BINARY
116 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
117 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
119 # define DEVRANDOM "/dev/urandom\x24"
120 # endif /* __DJGPP__ */
123 # define S_IFDIR _S_IFDIR
127 # define S_IFMT _S_IFMT
130 # if !defined(WINNT) && !defined(__DJGPP__)
135 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
137 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
138 * Most notably we ought to check for availability of each specific
139 * routine that was introduced after denoted _WIN32_WINNT with
140 * GetProcAddress(). Normally newer functions are masked with higher
141 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
142 * some module, you'd need to override _WIN32_WINNT definition in
143 * the target module in order to "reach for" prototypes, but replace
144 * calls to new functions with indirect calls. Alternatively it
145 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
146 * and check for current OS version instead.
148 # define _WIN32_WINNT 0x0501
150 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
152 * Just like defining _WIN32_WINNT including winsock2.h implies
153 * certain "discipline" for maintaining [broad] binary compatibility.
154 * As long as structures are invariant among Winsock versions,
155 * it's sufficient to check for specific Winsock2 API availability
156 * at run-time [DSO_global_lookup is recommended]...
158 # include <winsock2.h>
159 # include <ws2tcpip.h>
160 /* yes, they have to be #included prior to <windows.h> */
162 # include <windows.h>
166 # if defined(_WIN32_WCE) && !defined(EACCES)
171 # define strlen(s) _strlen31(s)
172 /* cut strings to 2GB */
173 static __inline unsigned int _strlen31(const char *str)
175 unsigned int len = 0;
176 while (*str && len < 0x80000000U)
178 return len & 0x7FFFFFFF;
182 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
183 # if _MSC_VER>=1300 && _MSC_VER<1600
188 # define stdin (&__iob_func()[0])
189 # define stdout (&__iob_func()[1])
190 # define stderr (&__iob_func()[2])
191 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
196 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
197 * or in other words with /MD. Declaring implicit import, i.e. with
198 * _imp_ prefix, works correctly with all compiler options, but
199 * without /MD results in LINK warning LNK4049: 'locally defined
200 * symbol "__iob" imported'.
202 extern FILE *_imp___iob;
203 # define stdin (&_imp___iob[0])
204 # define stdout (&_imp___iob[1])
205 # define stderr (&_imp___iob[2])
212 # ifdef OPENSSL_SYS_WINCE
213 # define OPENSSL_NO_POSIX_IO
216 # define EXIT(n) exit(n)
217 # define LIST_SEPARATOR_CHAR ';'
224 # ifdef OPENSSL_SYS_WINCE
225 # define DEFAULT_HOME ""
227 # define DEFAULT_HOME "C:"
230 /* Avoid Visual Studio 13 GetVersion deprecated problems */
231 # if defined(_MSC_VER) && _MSC_VER>=1800
232 # define check_winnt() (1)
233 # define check_win_minplat(x) (1)
235 # define check_winnt() (GetVersion() < 0x80000000)
236 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
239 # else /* The non-microsoft world */
241 # if defined(OPENSSL_SYS_VXWORKS)
242 # include <sys/times.h>
244 # include <sys/time.h>
247 # ifdef OPENSSL_SYS_VMS
250 * some programs don't include stdlib, so exit() and others give implicit
257 # include <unixlib.h>
259 # define LIST_SEPARATOR_CHAR ','
260 /* We don't have any well-defined random devices on VMS, yet... */
263 We need to do this since VMS has the following coding on status codes:
265 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
266 The important thing to know is that odd numbers are considered
267 good, while even ones are considered errors.
268 Bits 3-15: actual status number
269 Bits 16-27: facility number. 0 is considered "unknown"
270 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
271 output the message (which, for random codes, just looks ugly)
273 So, what we do here is to change 0 to 1 to get the default success status,
274 and everything else is shifted up to fit into the status number field, and
275 the status is tagged as an error, which is what is wanted here.
277 Finally, we add the VMS C facility code 0x35a000, because there are some
278 programs, such as Perl, that will reinterpret the code back to something
279 POSIXly. 'man perlvms' explains it further.
281 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
282 codes (status type = 1). I couldn't disagree more. Fortunately, the
283 status type doesn't seem to bother Perl.
286 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
288 # define DEFAULT_HOME "SYS$LOGIN:"
292 # ifdef OPENSSL_UNISTD
293 # include OPENSSL_UNISTD
297 # include <sys/types.h>
298 # ifdef OPENSSL_SYS_WIN32_CYGWIN
303 # define LIST_SEPARATOR_CHAR ':'
304 # define EXIT(n) exit(n)
309 /***********************************************/
311 # if defined(OPENSSL_SYS_WINDOWS)
312 # define strcasecmp _stricmp
313 # define strncasecmp _strnicmp
314 # if (_MSC_VER >= 1310)
316 # define fdopen _fdopen
317 # define close _close
319 # define strdup _strdup
321 # define unlink _unlink
322 # define fileno _fileno
325 # include <strings.h>
329 # if defined(OPENSSL_SYS_VXWORKS)
331 # include <tickLib.h>
333 # include <vxWorks.h>
334 # include <sockLib.h>
335 # include <taskLib.h>
337 # define TTY_STRUCT int
338 # define sleep(a) taskDelay((a) * sysClkRateGet())
341 * NOTE: these are implemented by helpers in database app! if the database is
342 * not linked, we need to implement them elsewhere
344 struct hostent *gethostbyname(const char *name);
345 struct hostent *gethostbyaddr(const char *addr, int length, int type);
346 struct servent *getservbyname(const char *name, const char *proto);
351 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
352 # define CRYPTO_memcmp memcmp