2 * Copyright 1995-2018 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.
31 * set this to a comma-separated list of 'random' device files to try out. By
32 * default, we will try to read at least one of these files
34 # if defined(__s390__)
35 # define DEVRANDOM "/dev/prandom","/dev/urandom","/dev/hwrng","/dev/random"
37 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
40 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
42 * set this to a comma-separated list of 'egd' sockets to try out. These
43 * sockets will be tried in the order listed in case accessing the device
44 * files listed in DEVRANDOM did not return enough randomness.
46 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
49 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
54 # define get_last_sys_error() errno
55 # define clear_sys_error() errno=0
57 /********************************************************************
59 ********************************************************************/
60 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
63 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
66 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
71 # undef get_last_sys_error
72 # undef clear_sys_error
73 # define get_last_sys_error() GetLastError()
74 # define clear_sys_error() SetLastError(0)
76 # define WIN_CONSOLE_BUG
81 # if (defined(WINDOWS) || defined(MSDOS))
85 # include <sys/stat.h>
86 # define _setmode setmode
87 # define _O_TEXT O_TEXT
88 # define _O_BINARY O_BINARY
89 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
90 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
92 # define DEVRANDOM "/dev/urandom\x24"
93 # endif /* __DJGPP__ */
96 # define S_IFDIR _S_IFDIR
100 # define S_IFMT _S_IFMT
103 # if !defined(WINNT) && !defined(__DJGPP__)
108 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
110 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
111 * Most notably we ought to check for availability of each specific
112 * routine that was introduced after denoted _WIN32_WINNT with
113 * GetProcAddress(). Normally newer functions are masked with higher
114 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
115 * some module, you'd need to override _WIN32_WINNT definition in
116 * the target module in order to "reach for" prototypes, but replace
117 * calls to new functions with indirect calls. Alternatively it
118 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
119 * and check for current OS version instead.
121 # define _WIN32_WINNT 0x0501
123 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
125 * Just like defining _WIN32_WINNT including winsock2.h implies
126 * certain "discipline" for maintaining [broad] binary compatibility.
127 * As long as structures are invariant among Winsock versions,
128 * it's sufficient to check for specific Winsock2 API availability
129 * at run-time [DSO_global_lookup is recommended]...
131 # include <winsock2.h>
132 # include <ws2tcpip.h>
133 /* yes, they have to be #included prior to <windows.h> */
135 # include <windows.h>
139 # if defined(_WIN32_WCE) && !defined(EACCES)
144 # define strlen(s) _strlen31(s)
145 /* cut strings to 2GB */
146 static __inline unsigned int _strlen31(const char *str)
148 unsigned int len = 0;
149 while (*str && len < 0x80000000U)
151 return len & 0x7FFFFFFF;
155 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
156 # if _MSC_VER>=1300 && _MSC_VER<1600
161 # define stdin (&__iob_func()[0])
162 # define stdout (&__iob_func()[1])
163 # define stderr (&__iob_func()[2])
164 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
169 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
170 * or in other words with /MD. Declaring implicit import, i.e. with
171 * _imp_ prefix, works correctly with all compiler options, but
172 * without /MD results in LINK warning LNK4049: 'locally defined
173 * symbol "__iob" imported'.
175 extern FILE *_imp___iob;
176 # define stdin (&_imp___iob[0])
177 # define stdout (&_imp___iob[1])
178 # define stderr (&_imp___iob[2])
185 # ifdef OPENSSL_SYS_WINCE
186 # define OPENSSL_NO_POSIX_IO
189 # define EXIT(n) exit(n)
190 # define LIST_SEPARATOR_CHAR ';'
197 # ifdef OPENSSL_SYS_WINCE
198 # define DEFAULT_HOME ""
200 # define DEFAULT_HOME "C:"
203 /* Avoid Visual Studio 13 GetVersion deprecated problems */
204 # if defined(_MSC_VER) && _MSC_VER>=1800
205 # define check_winnt() (1)
206 # define check_win_minplat(x) (1)
208 # define check_winnt() (GetVersion() < 0x80000000)
209 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
212 # else /* The non-microsoft world */
214 # if defined(OPENSSL_SYS_VXWORKS)
215 # include <sys/times.h>
217 # include <sys/time.h>
220 # ifdef OPENSSL_SYS_VMS
223 * some programs don't include stdlib, so exit() and others give implicit
230 # include <unixlib.h>
232 # define LIST_SEPARATOR_CHAR ','
233 /* We don't have any well-defined random devices on VMS, yet... */
236 We need to do this since VMS has the following coding on status codes:
238 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
239 The important thing to know is that odd numbers are considered
240 good, while even ones are considered errors.
241 Bits 3-15: actual status number
242 Bits 16-27: facility number. 0 is considered "unknown"
243 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
244 output the message (which, for random codes, just looks ugly)
246 So, what we do here is to change 0 to 1 to get the default success status,
247 and everything else is shifted up to fit into the status number field, and
248 the status is tagged as an error, which is what is wanted here.
250 Finally, we add the VMS C facility code 0x35a000, because there are some
251 programs, such as Perl, that will reinterpret the code back to something
252 POSIXly. 'man perlvms' explains it further.
254 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
255 codes (status type = 1). I couldn't disagree more. Fortunately, the
256 status type doesn't seem to bother Perl.
259 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
261 # define DEFAULT_HOME "SYS$LOGIN:"
265 # ifdef OPENSSL_UNISTD
266 # include OPENSSL_UNISTD
270 # include <sys/types.h>
271 # ifdef OPENSSL_SYS_WIN32_CYGWIN
276 # define LIST_SEPARATOR_CHAR ':'
277 # define EXIT(n) exit(n)
282 /***********************************************/
284 # if defined(OPENSSL_SYS_WINDOWS)
285 # define strcasecmp _stricmp
286 # define strncasecmp _strnicmp
287 # if (_MSC_VER >= 1310)
289 # define fdopen _fdopen
290 # define close _close
292 # define strdup _strdup
294 # define unlink _unlink
295 # define fileno _fileno
298 # include <strings.h>
302 # if defined(OPENSSL_SYS_VXWORKS)
304 # include <tickLib.h>
306 # include <vxWorks.h>
307 # include <sockLib.h>
308 # include <taskLib.h>
310 # define TTY_STRUCT int
311 # define sleep(a) taskDelay((a) * sysClkRateGet())
314 * NOTE: these are implemented by helpers in database app! if the database is
315 * not linked, we need to implement them elsewhere
317 struct hostent *gethostbyname(const char *name);
318 struct hostent *gethostbyaddr(const char *addr, int length, int type);
319 struct servent *getservbyname(const char *name, const char *proto);
324 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
325 # define CRYPTO_memcmp memcmp