2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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.
27 * set this to a comma-separated list of 'random' device files to try out. By
28 * default, we will try to read at least one of these files
30 # if defined(__s390__)
31 # define DEVRANDOM "/dev/prandom","/dev/urandom","/dev/hwrng","/dev/random"
33 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
36 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
38 * set this to a comma-separated list of 'egd' sockets to try out. These
39 * sockets will be tried in the order listed in case accessing the device
40 * files listed in DEVRANDOM did not return enough randomness.
42 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
45 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
50 # define get_last_sys_error() errno
51 # define clear_sys_error() errno=0
52 # define set_sys_error(e) errno=(e)
54 /********************************************************************
56 ********************************************************************/
57 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
60 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
63 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
68 # undef get_last_sys_error
69 # undef clear_sys_error
71 # define get_last_sys_error() GetLastError()
72 # define clear_sys_error() SetLastError(0)
73 # define set_sys_error(e) SetLastError(e)
75 # define WIN_CONSOLE_BUG
80 # if (defined(WINDOWS) || defined(MSDOS))
84 # include <sys/stat.h>
85 # define _setmode setmode
86 # define _O_TEXT O_TEXT
87 # define _O_BINARY O_BINARY
88 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
89 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
91 # define DEVRANDOM "/dev/urandom\x24"
92 # endif /* __DJGPP__ */
95 # define S_IFDIR _S_IFDIR
99 # define S_IFMT _S_IFMT
102 # if !defined(WINNT) && !defined(__DJGPP__)
107 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
109 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
110 * Most notably we ought to check for availability of each specific
111 * routine that was introduced after denoted _WIN32_WINNT with
112 * GetProcAddress(). Normally newer functions are masked with higher
113 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
114 * some module, you'd need to override _WIN32_WINNT definition in
115 * the target module in order to "reach for" prototypes, but replace
116 * calls to new functions with indirect calls. Alternatively it
117 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
118 * and check for current OS version instead.
120 # define _WIN32_WINNT 0x0501
122 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
124 * Just like defining _WIN32_WINNT including winsock2.h implies
125 * certain "discipline" for maintaining [broad] binary compatibility.
126 * As long as structures are invariant among Winsock versions,
127 * it's sufficient to check for specific Winsock2 API availability
128 * at run-time [DSO_global_lookup is recommended]...
130 # include <winsock2.h>
131 # include <ws2tcpip.h>
132 /* yes, they have to be #included prior to <windows.h> */
134 # include <windows.h>
138 # if defined(_WIN32_WCE) && !defined(EACCES)
143 # define strlen(s) _strlen31(s)
144 /* cut strings to 2GB */
145 static __inline unsigned int _strlen31(const char *str)
147 unsigned int len = 0;
148 while (*str && len < 0x80000000U)
150 return len & 0x7FFFFFFF;
154 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
155 # if _MSC_VER>=1300 && _MSC_VER<1600
160 # define stdin (&__iob_func()[0])
161 # define stdout (&__iob_func()[1])
162 # define stderr (&__iob_func()[2])
163 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
168 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
169 * or in other words with /MD. Declaring implicit import, i.e. with
170 * _imp_ prefix, works correctly with all compiler options, but
171 * without /MD results in LINK warning LNK4049: 'locally defined
172 * symbol "__iob" imported'.
174 extern FILE *_imp___iob;
175 # define stdin (&_imp___iob[0])
176 # define stdout (&_imp___iob[1])
177 # define stderr (&_imp___iob[2])
184 # ifdef OPENSSL_SYS_WINCE
185 # define OPENSSL_NO_POSIX_IO
188 # define EXIT(n) exit(n)
189 # define LIST_SEPARATOR_CHAR ';'
196 # ifdef OPENSSL_SYS_WINCE
197 # define DEFAULT_HOME ""
199 # define DEFAULT_HOME "C:"
202 /* Avoid Visual Studio 13 GetVersion deprecated problems */
203 # if defined(_MSC_VER) && _MSC_VER>=1800
204 # define check_winnt() (1)
205 # define check_win_minplat(x) (1)
207 # define check_winnt() (GetVersion() < 0x80000000)
208 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
211 # else /* The non-microsoft world */
213 # if defined(OPENSSL_SYS_VXWORKS)
214 # include <sys/times.h>
216 # include <sys/time.h>
219 # ifdef OPENSSL_SYS_VMS
222 * some programs don't include stdlib, so exit() and others give implicit
229 # include <unixlib.h>
231 # define LIST_SEPARATOR_CHAR ','
232 /* We don't have any well-defined random devices on VMS, yet... */
235 We need to do this since VMS has the following coding on status codes:
237 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
238 The important thing to know is that odd numbers are considered
239 good, while even ones are considered errors.
240 Bits 3-15: actual status number
241 Bits 16-27: facility number. 0 is considered "unknown"
242 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
243 output the message (which, for random codes, just looks ugly)
245 So, what we do here is to change 0 to 1 to get the default success status,
246 and everything else is shifted up to fit into the status number field, and
247 the status is tagged as an error, which is what is wanted here.
249 Finally, we add the VMS C facility code 0x35a000, because there are some
250 programs, such as Perl, that will reinterpret the code back to something
251 POSIX. 'man perlvms' explains it further.
253 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
254 codes (status type = 1). I couldn't disagree more. Fortunately, the
255 status type doesn't seem to bother Perl.
258 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
260 # define DEFAULT_HOME "SYS$LOGIN:"
264 # ifdef OPENSSL_UNISTD
265 # include OPENSSL_UNISTD
269 # include <sys/types.h>
270 # ifdef OPENSSL_SYS_WIN32_CYGWIN
275 # define LIST_SEPARATOR_CHAR ':'
276 # define EXIT(n) exit(n)
281 /***********************************************/
283 # if defined(OPENSSL_SYS_WINDOWS)
284 # define strcasecmp _stricmp
285 # define strncasecmp _strnicmp
286 # if (_MSC_VER >= 1310)
288 # define fdopen _fdopen
289 # define close _close
291 # define strdup _strdup
293 # define unlink _unlink
294 # define fileno _fileno
297 # include <strings.h>
301 # if defined(OPENSSL_SYS_VXWORKS)
303 # include <tickLib.h>
305 # include <vxWorks.h>
306 # include <sockLib.h>
307 # include <taskLib.h>
309 # define TTY_STRUCT int
310 # define sleep(a) taskDelay((a) * sysClkRateGet())
313 * NOTE: these are implemented by helpers in database app! if the database is
314 * not linked, we need to implement them elsewhere
316 struct hostent *gethostbyname(const char *name);
317 struct hostent *gethostbyaddr(const char *addr, int length, int type);
318 struct servent *getservbyname(const char *name, const char *proto);
323 # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
324 # define CRYPTO_memcmp memcmp
327 /* unistd.h defines _POSIX_VERSION */
328 # if !defined(OPENSSL_NO_SECURE_MEMORY) && defined(OPENSSL_SYS_UNIX) \
329 && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) \
330 || defined(__sun) || defined(__hpux) || defined(__sgi) \
331 || defined(__osf__) )
332 # define OPENSSL_SECURE_MEMORY /* secure memory is implemented */