2 * Copyright 1995-2019 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.
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 # define DEVRANDOM "/dev/urandom", "/dev/random", "/dev/hwrng", "/dev/srandom"
32 # define DEVRANDOM_WAIT "/dev/random"
35 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
37 * set this to a comma-separated list of 'egd' sockets to try out. These
38 * sockets will be tried in the order listed in case accessing the device
39 * files listed in DEVRANDOM did not return enough randomness.
41 # define DEVRANDOM_EGD "/var/run/egd-pool", "/dev/egd-pool", "/etc/egd-pool", "/etc/entropy"
44 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
49 # define get_last_sys_error() errno
50 # define clear_sys_error() errno=0
51 # define set_sys_error(e) errno=(e)
53 /********************************************************************
55 ********************************************************************/
56 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
59 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
62 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
67 # undef get_last_sys_error
68 # undef clear_sys_error
70 # define get_last_sys_error() GetLastError()
71 # define clear_sys_error() SetLastError(0)
72 # define set_sys_error(e) SetLastError(e)
74 # define WIN_CONSOLE_BUG
79 # if (defined(WINDOWS) || defined(MSDOS))
83 # include <sys/stat.h>
84 # define _setmode setmode
85 # define _O_TEXT O_TEXT
86 # define _O_BINARY O_BINARY
87 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
88 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
90 # define DEVRANDOM "/dev/urandom\x24"
91 # endif /* __DJGPP__ */
94 # define S_IFDIR _S_IFDIR
98 # define S_IFMT _S_IFMT
101 # if !defined(WINNT) && !defined(__DJGPP__)
106 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
108 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
109 * Most notably we ought to check for availability of each specific
110 * routine that was introduced after denoted _WIN32_WINNT with
111 * GetProcAddress(). Normally newer functions are masked with higher
112 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
113 * some module, you'd need to override _WIN32_WINNT definition in
114 * the target module in order to "reach for" prototypes, but replace
115 * calls to new functions with indirect calls. Alternatively it
116 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
117 * and check for current OS version instead.
119 # define _WIN32_WINNT 0x0501
121 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
123 * Just like defining _WIN32_WINNT including winsock2.h implies
124 * certain "discipline" for maintaining [broad] binary compatibility.
125 * As long as structures are invariant among Winsock versions,
126 * it's sufficient to check for specific Winsock2 API availability
127 * at run-time [DSO_global_lookup is recommended]...
129 # include <winsock2.h>
130 # include <ws2tcpip.h>
131 /* yes, they have to be #included prior to <windows.h> */
133 # include <windows.h>
137 # if defined(_WIN32_WCE) && !defined(EACCES)
142 # define strlen(s) _strlen31(s)
143 /* cut strings to 2GB */
144 static __inline unsigned int _strlen31(const char *str)
146 unsigned int len = 0;
147 while (*str && len < 0x80000000U)
149 return len & 0x7FFFFFFF;
153 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
154 # if _MSC_VER>=1300 && _MSC_VER<1600
159 # define stdin (&__iob_func()[0])
160 # define stdout (&__iob_func()[1])
161 # define stderr (&__iob_func()[2])
162 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
167 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
168 * or in other words with /MD. Declaring implicit import, i.e. with
169 * _imp_ prefix, works correctly with all compiler options, but
170 * without /MD results in LINK warning LNK4049: 'locally defined
171 * symbol "__iob" imported'.
173 extern FILE *_imp___iob;
174 # define stdin (&_imp___iob[0])
175 # define stdout (&_imp___iob[1])
176 # define stderr (&_imp___iob[2])
183 # ifdef OPENSSL_SYS_WINCE
184 # define OPENSSL_NO_POSIX_IO
187 # define EXIT(n) exit(n)
188 # define LIST_SEPARATOR_CHAR ';'
195 # ifdef OPENSSL_SYS_WINCE
196 # define DEFAULT_HOME ""
198 # define DEFAULT_HOME "C:"
201 /* Avoid Visual Studio 13 GetVersion deprecated problems */
202 # if defined(_MSC_VER) && _MSC_VER>=1800
203 # define check_winnt() (1)
204 # define check_win_minplat(x) (1)
206 # define check_winnt() (GetVersion() < 0x80000000)
207 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
210 # else /* The non-microsoft world */
212 # if defined(OPENSSL_SYS_VXWORKS)
213 # include <sys/times.h>
215 # include <sys/time.h>
218 # ifdef OPENSSL_SYS_VMS
221 * some programs don't include stdlib, so exit() and others give implicit
228 # include <unixlib.h>
230 # define LIST_SEPARATOR_CHAR ','
231 /* We don't have any well-defined random devices on VMS, yet... */
234 We need to do this since VMS has the following coding on status codes:
236 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
237 The important thing to know is that odd numbers are considered
238 good, while even ones are considered errors.
239 Bits 3-15: actual status number
240 Bits 16-27: facility number. 0 is considered "unknown"
241 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
242 output the message (which, for random codes, just looks ugly)
244 So, what we do here is to change 0 to 1 to get the default success status,
245 and everything else is shifted up to fit into the status number field, and
246 the status is tagged as an error, which is what is wanted here.
248 Finally, we add the VMS C facility code 0x35a000, because there are some
249 programs, such as Perl, that will reinterpret the code back to something
250 POSIX. 'man perlvms' explains it further.
252 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
253 codes (status type = 1). I couldn't disagree more. Fortunately, the
254 status type doesn't seem to bother Perl.
257 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
259 # define DEFAULT_HOME "SYS$LOGIN:"
263 # ifdef OPENSSL_UNISTD
264 # include OPENSSL_UNISTD
268 # include <sys/types.h>
269 # ifdef OPENSSL_SYS_WIN32_CYGWIN
274 # define LIST_SEPARATOR_CHAR ':'
275 # define EXIT(n) exit(n)
280 /***********************************************/
282 # if defined(OPENSSL_SYS_WINDOWS)
283 # define strcasecmp _stricmp
284 # define strncasecmp _strnicmp
285 # if (_MSC_VER >= 1310)
287 # define fdopen _fdopen
288 # define close _close
290 # define strdup _strdup
292 # define unlink _unlink
293 # define fileno _fileno
296 # include <strings.h>
300 # if defined(OPENSSL_SYS_VXWORKS)
302 # include <tickLib.h>
304 # include <vxWorks.h>
305 # include <sockLib.h>
306 # include <taskLib.h>
308 # define TTY_STRUCT int
309 # define sleep(a) taskDelay((a) * sysClkRateGet())
312 * NOTE: these are implemented by helpers in database app! if the database is
313 * not linked, we need to implement them elsewhere
315 struct hostent *gethostbyname(const char *name);
316 struct hostent *gethostbyaddr(const char *addr, int length, int type);
317 struct servent *getservbyname(const char *name, const char *proto);
322 # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
323 # define CRYPTO_memcmp memcmp
326 /* unistd.h defines _POSIX_VERSION */
327 # if !defined(OPENSSL_NO_SECURE_MEMORY) && defined(OPENSSL_SYS_UNIX) \
328 && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) \
329 || defined(__sun) || defined(__hpux) || defined(__sgi) \
330 || defined(__osf__) )
331 # define OPENSSL_SECURE_MEMORY /* secure memory is implemented */