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 # define DEVRANDOM "/dev/urandom", "/dev/random", "/dev/hwrng", "/dev/srandom"
32 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
34 * set this to a comma-separated list of 'egd' sockets to try out. These
35 * sockets will be tried in the order listed in case accessing the device
36 * files listed in DEVRANDOM did not return enough randomness.
38 # define DEVRANDOM_EGD "/var/run/egd-pool", "/dev/egd-pool", "/etc/egd-pool", "/etc/entropy"
41 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
46 # define get_last_sys_error() errno
47 # define clear_sys_error() errno=0
48 # define set_sys_error(e) errno=(e)
50 /********************************************************************
52 ********************************************************************/
53 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
56 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
59 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
64 # undef get_last_sys_error
65 # undef clear_sys_error
67 # define get_last_sys_error() GetLastError()
68 # define clear_sys_error() SetLastError(0)
69 # define set_sys_error(e) SetLastError(e)
71 # define WIN_CONSOLE_BUG
76 # if (defined(WINDOWS) || defined(MSDOS))
80 # include <sys/stat.h>
81 # define _setmode setmode
82 # define _O_TEXT O_TEXT
83 # define _O_BINARY O_BINARY
84 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
85 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
87 # define DEVRANDOM "/dev/urandom\x24"
88 # endif /* __DJGPP__ */
91 # define S_IFDIR _S_IFDIR
95 # define S_IFMT _S_IFMT
98 # if !defined(WINNT) && !defined(__DJGPP__)
103 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
105 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
106 * Most notably we ought to check for availability of each specific
107 * routine that was introduced after denoted _WIN32_WINNT with
108 * GetProcAddress(). Normally newer functions are masked with higher
109 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
110 * some module, you'd need to override _WIN32_WINNT definition in
111 * the target module in order to "reach for" prototypes, but replace
112 * calls to new functions with indirect calls. Alternatively it
113 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
114 * and check for current OS version instead.
116 # define _WIN32_WINNT 0x0501
118 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
120 * Just like defining _WIN32_WINNT including winsock2.h implies
121 * certain "discipline" for maintaining [broad] binary compatibility.
122 * As long as structures are invariant among Winsock versions,
123 * it's sufficient to check for specific Winsock2 API availability
124 * at run-time [DSO_global_lookup is recommended]...
126 # include <winsock2.h>
127 # include <ws2tcpip.h>
128 /* yes, they have to be #included prior to <windows.h> */
130 # include <windows.h>
134 # if defined(_WIN32_WCE) && !defined(EACCES)
139 # define strlen(s) _strlen31(s)
140 /* cut strings to 2GB */
141 static __inline unsigned int _strlen31(const char *str)
143 unsigned int len = 0;
144 while (*str && len < 0x80000000U)
146 return len & 0x7FFFFFFF;
150 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
151 # if _MSC_VER>=1300 && _MSC_VER<1600
156 # define stdin (&__iob_func()[0])
157 # define stdout (&__iob_func()[1])
158 # define stderr (&__iob_func()[2])
159 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
164 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
165 * or in other words with /MD. Declaring implicit import, i.e. with
166 * _imp_ prefix, works correctly with all compiler options, but
167 * without /MD results in LINK warning LNK4049: 'locally defined
168 * symbol "__iob" imported'.
170 extern FILE *_imp___iob;
171 # define stdin (&_imp___iob[0])
172 # define stdout (&_imp___iob[1])
173 # define stderr (&_imp___iob[2])
180 # ifdef OPENSSL_SYS_WINCE
181 # define OPENSSL_NO_POSIX_IO
184 # define EXIT(n) exit(n)
185 # define LIST_SEPARATOR_CHAR ';'
192 # ifdef OPENSSL_SYS_WINCE
193 # define DEFAULT_HOME ""
195 # define DEFAULT_HOME "C:"
198 /* Avoid Visual Studio 13 GetVersion deprecated problems */
199 # if defined(_MSC_VER) && _MSC_VER>=1800
200 # define check_winnt() (1)
201 # define check_win_minplat(x) (1)
203 # define check_winnt() (GetVersion() < 0x80000000)
204 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
207 # else /* The non-microsoft world */
209 # if defined(OPENSSL_SYS_VXWORKS)
212 # include <sys/time.h>
215 # ifdef OPENSSL_SYS_VMS
218 * some programs don't include stdlib, so exit() and others give implicit
225 # include <unixlib.h>
227 # define LIST_SEPARATOR_CHAR ','
228 /* We don't have any well-defined random devices on VMS, yet... */
231 We need to do this since VMS has the following coding on status codes:
233 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
234 The important thing to know is that odd numbers are considered
235 good, while even ones are considered errors.
236 Bits 3-15: actual status number
237 Bits 16-27: facility number. 0 is considered "unknown"
238 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
239 output the message (which, for random codes, just looks ugly)
241 So, what we do here is to change 0 to 1 to get the default success status,
242 and everything else is shifted up to fit into the status number field, and
243 the status is tagged as an error, which is what is wanted here.
245 Finally, we add the VMS C facility code 0x35a000, because there are some
246 programs, such as Perl, that will reinterpret the code back to something
247 POSIX. 'man perlvms' explains it further.
249 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
250 codes (status type = 1). I couldn't disagree more. Fortunately, the
251 status type doesn't seem to bother Perl.
254 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
256 # define DEFAULT_HOME "SYS$LOGIN:"
261 # include <sys/types.h>
262 # ifdef OPENSSL_SYS_WIN32_CYGWIN
267 # define LIST_SEPARATOR_CHAR ':'
268 # define EXIT(n) exit(n)
273 /***********************************************/
275 # if defined(OPENSSL_SYS_WINDOWS)
276 # define strcasecmp _stricmp
277 # define strncasecmp _strnicmp
278 # if (_MSC_VER >= 1310)
280 # define fdopen _fdopen
281 # define close _close
283 # define strdup _strdup
285 # define unlink _unlink
286 # define fileno _fileno
289 # include <strings.h>
293 # if defined(OPENSSL_SYS_VXWORKS)
295 # include <tickLib.h>
297 # include <vxWorks.h>
298 # include <sockLib.h>
299 # include <taskLib.h>
301 # define TTY_STRUCT int
302 # define sleep(a) taskDelay((a) * sysClkRateGet())
305 * NOTE: these are implemented by helpers in database app! if the database is
306 * not linked, we need to implement them elsewhere
308 struct hostent *gethostbyname(const char *name);
309 struct hostent *gethostbyaddr(const char *addr, int length, int type);
310 struct servent *getservbyname(const char *name, const char *proto);
315 # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
316 # define CRYPTO_memcmp memcmp
319 /* unistd.h defines _POSIX_VERSION */
320 # if !defined(OPENSSL_NO_SECURE_MEMORY) && defined(OPENSSL_SYS_UNIX) \
321 && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) \
322 || defined(__sun) || defined(__hpux) || defined(__sgi) \
323 || defined(__osf__) )
324 # define OPENSSL_SECURE_MEMORY /* secure memory is implemented */