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
13 # include <openssl/opensslconf.h>
15 # include <openssl/e_os2.h>
16 # include <openssl/crypto.h>
17 # include "internal/nelem.h"
20 * <openssl/e_os2.h> contains what we can justify to make visible to the
21 * outside; this file e_os.h is not part of the exported interface.
29 * Format specifier for printing size_t. Original conundrum was to
30 * get it working with -Wformat [-Werror], which can be considered
31 * overzealous, especially in multi-platform context, but it's
35 # define OSSLzu "I64u" /* One would expect _WIN{64|32} cases after
36 * __STDC_VERSION__, but there are corner
37 * cases of MinGW compilers that link with
38 * non-compliant MSVCRT.DLL... */
39 # elif defined(_WIN32)
42 # define OSSLzu "u" /* VMS suffers from similar problem as MinGW,
43 * i.e. C RTL falling behind compiler. Recall
44 * that sizeof(size_t)==4 even in LP64 case. */
45 # elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
47 # elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__==4
48 # define OSSLzu "u" /* 'lu' should have worked, but when generating
49 * 32-bit code gcc still complains :-( */
51 # define OSSLzu "lu" /* To see that is works recall what does L
52 * stand for in ILP32 and LP64 */
55 # define OPENSSL_CONF "openssl.cnf"
59 * set this to a comma-separated list of 'random' device files to try out. By
60 * default, we will try to read at least one of these files
62 # define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
64 # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
66 * set this to a comma-separated list of 'egd' sockets to try out. These
67 * sockets will be tried in the order listed in case accessing the device
68 * files listed in DEVRANDOM did not return enough randomness.
70 # define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
73 # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
78 # define get_last_sys_error() errno
79 # define clear_sys_error() errno=0
81 /********************************************************************
83 ********************************************************************/
84 # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
87 # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
90 # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
95 # undef get_last_sys_error
96 # undef clear_sys_error
97 # define get_last_sys_error() GetLastError()
98 # define clear_sys_error() SetLastError(0)
100 # define WIN_CONSOLE_BUG
105 # if (defined(WINDOWS) || defined(MSDOS))
109 # include <sys/stat.h>
110 # define _setmode setmode
111 # define _O_TEXT O_TEXT
112 # define _O_BINARY O_BINARY
113 # define HAS_LFN_SUPPORT(name) (pathconf((name), _PC_NAME_MAX) > 12)
114 # undef DEVRANDOM_EGD /* Neither MS-DOS nor FreeDOS provide 'egd' sockets. */
116 # define DEVRANDOM "/dev/urandom\x24"
117 # endif /* __DJGPP__ */
120 # define S_IFDIR _S_IFDIR
124 # define S_IFMT _S_IFMT
127 # if !defined(WINNT) && !defined(__DJGPP__)
132 # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
134 * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
135 * Most notably we ought to check for availability of each specific
136 * routine that was introduced after denoted _WIN32_WINNT with
137 * GetProcAddress(). Normally newer functions are masked with higher
138 * _WIN32_WINNT in SDK headers. So that if you wish to use them in
139 * some module, you'd need to override _WIN32_WINNT definition in
140 * the target module in order to "reach for" prototypes, but replace
141 * calls to new functions with indirect calls. Alternatively it
142 * might be possible to achieve the goal by /DELAYLOAD-ing .DLLs
143 * and check for current OS version instead.
145 # define _WIN32_WINNT 0x0501
147 # if defined(_WIN32_WINNT) || defined(_WIN32_WCE)
149 * Just like defining _WIN32_WINNT including winsock2.h implies
150 * certain "discipline" for maintaining [broad] binary compatibility.
151 * As long as structures are invariant among Winsock versions,
152 * it's sufficient to check for specific Winsock2 API availability
153 * at run-time [DSO_global_lookup is recommended]...
155 # include <winsock2.h>
156 # include <ws2tcpip.h>
157 /* yes, they have to be #included prior to <windows.h> */
159 # include <windows.h>
163 # if defined(_WIN32_WCE) && !defined(EACCES)
168 # define strlen(s) _strlen31(s)
169 /* cut strings to 2GB */
170 static __inline unsigned int _strlen31(const char *str)
172 unsigned int len = 0;
173 while (*str && len < 0x80000000U)
175 return len & 0x7FFFFFFF;
179 # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
180 # if _MSC_VER>=1300 && _MSC_VER<1600
185 # define stdin (&__iob_func()[0])
186 # define stdout (&__iob_func()[1])
187 # define stderr (&__iob_func()[2])
188 # elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
193 * pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
194 * or in other words with /MD. Declaring implicit import, i.e. with
195 * _imp_ prefix, works correctly with all compiler options, but
196 * without /MD results in LINK warning LNK4049: 'locally defined
197 * symbol "__iob" imported'.
199 extern FILE *_imp___iob;
200 # define stdin (&_imp___iob[0])
201 # define stdout (&_imp___iob[1])
202 # define stderr (&_imp___iob[2])
209 # ifdef OPENSSL_SYS_WINCE
210 # define OPENSSL_NO_POSIX_IO
213 # define EXIT(n) exit(n)
214 # define LIST_SEPARATOR_CHAR ';'
221 # ifdef OPENSSL_SYS_WINCE
222 # define DEFAULT_HOME ""
224 # define DEFAULT_HOME "C:"
227 /* Avoid Visual Studio 13 GetVersion deprecated problems */
228 # if defined(_MSC_VER) && _MSC_VER>=1800
229 # define check_winnt() (1)
230 # define check_win_minplat(x) (1)
232 # define check_winnt() (GetVersion() < 0x80000000)
233 # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x))
236 # else /* The non-microsoft world */
238 # ifdef OPENSSL_SYS_VMS
241 * some programs don't include stdlib, so exit() and others give implicit
248 # include <unixlib.h>
250 # define LIST_SEPARATOR_CHAR ','
251 /* We don't have any well-defined random devices on VMS, yet... */
254 We need to do this since VMS has the following coding on status codes:
256 Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
257 The important thing to know is that odd numbers are considered
258 good, while even ones are considered errors.
259 Bits 3-15: actual status number
260 Bits 16-27: facility number. 0 is considered "unknown"
261 Bits 28-31: control bits. If bit 28 is set, the shell won't try to
262 output the message (which, for random codes, just looks ugly)
264 So, what we do here is to change 0 to 1 to get the default success status,
265 and everything else is shifted up to fit into the status number field, and
266 the status is tagged as an error, which is what is wanted here.
268 Finally, we add the VMS C facility code 0x35a000, because there are some
269 programs, such as Perl, that will reinterpret the code back to something
270 POSIXly. 'man perlvms' explains it further.
272 NOTE: the perlvms manual wants to turn all codes 2 to 255 into success
273 codes (status type = 1). I couldn't disagree more. Fortunately, the
274 status type doesn't seem to bother Perl.
277 # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1)
279 # define DEFAULT_HOME "SYS$LOGIN:"
283 # ifdef OPENSSL_UNISTD
284 # include OPENSSL_UNISTD
288 # include <sys/types.h>
289 # ifdef OPENSSL_SYS_WIN32_CYGWIN
294 # define LIST_SEPARATOR_CHAR ':'
295 # define EXIT(n) exit(n)
300 /***********************************************/
302 # if defined(OPENSSL_SYS_WINDOWS)
303 # define strcasecmp _stricmp
304 # define strncasecmp _strnicmp
305 # if (_MSC_VER >= 1310)
307 # define fdopen _fdopen
308 # define close _close
310 # define strdup _strdup
312 # define unlink _unlink
313 # define fileno _fileno
316 # include <strings.h>
320 # if defined(OPENSSL_SYS_VXWORKS)
322 # include <tickLib.h>
324 # include <vxWorks.h>
325 # include <sockLib.h>
326 # include <taskLib.h>
328 # define TTY_STRUCT int
329 # define sleep(a) taskDelay((a) * sysClkRateGet())
332 * NOTE: these are implemented by helpers in database app! if the database is
333 * not linked, we need to implement them elsewhere
335 struct hostent *gethostbyname(const char *name);
336 struct hostent *gethostbyaddr(const char *addr, int length, int type);
337 struct servent *getservbyname(const char *name, const char *proto);
342 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
343 # define CRYPTO_memcmp memcmp