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1 | /* | |
2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
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 | |
8 | */ | |
9 | ||
10 | #ifndef HEADER_E_OS_H | |
11 | # define HEADER_E_OS_H | |
12 | ||
13 | # include <limits.h> | |
14 | # include <openssl/opensslconf.h> | |
15 | ||
16 | # include <openssl/e_os2.h> | |
17 | # include <openssl/crypto.h> | |
18 | # include "internal/nelem.h" | |
19 | ||
20 | /* | |
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. | |
23 | */ | |
24 | ||
25 | # ifndef DEVRANDOM | |
26 | /* | |
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 | |
29 | */ | |
30 | # define DEVRANDOM "/dev/urandom", "/dev/random", "/dev/hwrng", "/dev/srandom" | |
31 | # endif | |
32 | # if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD) | |
33 | /* | |
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. | |
37 | */ | |
38 | # define DEVRANDOM_EGD "/var/run/egd-pool", "/dev/egd-pool", "/etc/egd-pool", "/etc/entropy" | |
39 | # endif | |
40 | ||
41 | # if defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI) | |
42 | # define NO_CHMOD | |
43 | # define NO_SYSLOG | |
44 | # endif | |
45 | ||
46 | # define get_last_sys_error() errno | |
47 | # define clear_sys_error() errno=0 | |
48 | # define set_sys_error(e) errno=(e) | |
49 | ||
50 | /******************************************************************** | |
51 | The Microsoft section | |
52 | ********************************************************************/ | |
53 | # if defined(OPENSSL_SYS_WIN32) && !defined(WIN32) | |
54 | # define WIN32 | |
55 | # endif | |
56 | # if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS) | |
57 | # define WINDOWS | |
58 | # endif | |
59 | # if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS) | |
60 | # define MSDOS | |
61 | # endif | |
62 | ||
63 | # ifdef WIN32 | |
64 | # undef get_last_sys_error | |
65 | # undef clear_sys_error | |
66 | # undef set_sys_error | |
67 | # define get_last_sys_error() GetLastError() | |
68 | # define clear_sys_error() SetLastError(0) | |
69 | # define set_sys_error(e) SetLastError(e) | |
70 | # if !defined(WINNT) | |
71 | # define WIN_CONSOLE_BUG | |
72 | # endif | |
73 | # else | |
74 | # endif | |
75 | ||
76 | # if (defined(WINDOWS) || defined(MSDOS)) | |
77 | ||
78 | # ifdef __DJGPP__ | |
79 | # include <unistd.h> | |
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. */ | |
86 | # undef DEVRANDOM | |
87 | # define DEVRANDOM "/dev/urandom\x24" | |
88 | # endif /* __DJGPP__ */ | |
89 | ||
90 | # ifndef S_IFDIR | |
91 | # define S_IFDIR _S_IFDIR | |
92 | # endif | |
93 | ||
94 | # ifndef S_IFMT | |
95 | # define S_IFMT _S_IFMT | |
96 | # endif | |
97 | ||
98 | # if !defined(WINNT) && !defined(__DJGPP__) | |
99 | # define NO_SYSLOG | |
100 | # endif | |
101 | ||
102 | # ifdef WINDOWS | |
103 | # if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT) | |
104 | /* | |
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. | |
115 | */ | |
116 | # define _WIN32_WINNT 0x0501 | |
117 | # endif | |
118 | # if defined(_WIN32_WINNT) || defined(_WIN32_WCE) | |
119 | /* | |
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]... | |
125 | */ | |
126 | # include <winsock2.h> | |
127 | # include <ws2tcpip.h> | |
128 | /* yes, they have to be #included prior to <windows.h> */ | |
129 | # endif | |
130 | # include <windows.h> | |
131 | # include <stdio.h> | |
132 | # include <stddef.h> | |
133 | # include <errno.h> | |
134 | # if defined(_WIN32_WCE) && !defined(EACCES) | |
135 | # define EACCES 13 | |
136 | # endif | |
137 | # include <string.h> | |
138 | # ifdef _WIN64 | |
139 | # define strlen(s) _strlen31(s) | |
140 | /* cut strings to 2GB */ | |
141 | static __inline unsigned int _strlen31(const char *str) | |
142 | { | |
143 | unsigned int len = 0; | |
144 | while (*str && len < 0x80000000U) | |
145 | str++, len++; | |
146 | return len & 0x7FFFFFFF; | |
147 | } | |
148 | # endif | |
149 | # include <malloc.h> | |
150 | # if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin) | |
151 | # if _MSC_VER>=1300 && _MSC_VER<1600 | |
152 | # undef stdin | |
153 | # undef stdout | |
154 | # undef stderr | |
155 | FILE *__iob_func(); | |
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) | |
160 | # undef stdin | |
161 | # undef stdout | |
162 | # undef stderr | |
163 | /* | |
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'. | |
169 | */ | |
170 | extern FILE *_imp___iob; | |
171 | # define stdin (&_imp___iob[0]) | |
172 | # define stdout (&_imp___iob[1]) | |
173 | # define stderr (&_imp___iob[2]) | |
174 | # endif | |
175 | # endif | |
176 | # endif | |
177 | # include <io.h> | |
178 | # include <fcntl.h> | |
179 | ||
180 | # ifdef OPENSSL_SYS_WINCE | |
181 | # define OPENSSL_NO_POSIX_IO | |
182 | # endif | |
183 | ||
184 | # define EXIT(n) exit(n) | |
185 | # define LIST_SEPARATOR_CHAR ';' | |
186 | # ifndef W_OK | |
187 | # define W_OK 2 | |
188 | # endif | |
189 | # ifndef R_OK | |
190 | # define R_OK 4 | |
191 | # endif | |
192 | # ifdef OPENSSL_SYS_WINCE | |
193 | # define DEFAULT_HOME "" | |
194 | # else | |
195 | # define DEFAULT_HOME "C:" | |
196 | # endif | |
197 | ||
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) | |
202 | # else | |
203 | # define check_winnt() (GetVersion() < 0x80000000) | |
204 | # define check_win_minplat(x) (LOBYTE(LOWORD(GetVersion())) >= (x)) | |
205 | # endif | |
206 | ||
207 | # else /* The non-microsoft world */ | |
208 | ||
209 | # if defined(OPENSSL_SYS_VXWORKS) | |
210 | # include <time.h> | |
211 | # else | |
212 | # include <sys/time.h> | |
213 | # endif | |
214 | ||
215 | # ifdef OPENSSL_SYS_VMS | |
216 | # define VMS 1 | |
217 | /* | |
218 | * some programs don't include stdlib, so exit() and others give implicit | |
219 | * function warnings | |
220 | */ | |
221 | # include <stdlib.h> | |
222 | # if defined(__DECC) | |
223 | # include <unistd.h> | |
224 | # else | |
225 | # include <unixlib.h> | |
226 | # endif | |
227 | # define LIST_SEPARATOR_CHAR ',' | |
228 | /* We don't have any well-defined random devices on VMS, yet... */ | |
229 | # undef DEVRANDOM | |
230 | /*- | |
231 | We need to do this since VMS has the following coding on status codes: | |
232 | ||
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) | |
240 | ||
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. | |
244 | ||
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. | |
248 | ||
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. | |
252 | -- Richard Levitte | |
253 | */ | |
254 | # define EXIT(n) exit((n) ? (((n) << 3) | 2 | 0x10000000 | 0x35a000) : 1) | |
255 | ||
256 | # define DEFAULT_HOME "SYS$LOGIN:" | |
257 | ||
258 | # else | |
259 | /* !defined VMS */ | |
260 | # include <unistd.h> | |
261 | # include <sys/types.h> | |
262 | # ifdef OPENSSL_SYS_WIN32_CYGWIN | |
263 | # include <io.h> | |
264 | # include <fcntl.h> | |
265 | # endif | |
266 | ||
267 | # define LIST_SEPARATOR_CHAR ':' | |
268 | # define EXIT(n) exit(n) | |
269 | # endif | |
270 | ||
271 | # endif | |
272 | ||
273 | /***********************************************/ | |
274 | ||
275 | # if defined(OPENSSL_SYS_WINDOWS) | |
276 | # define strcasecmp _stricmp | |
277 | # define strncasecmp _strnicmp | |
278 | # if (_MSC_VER >= 1310) | |
279 | # define open _open | |
280 | # define fdopen _fdopen | |
281 | # define close _close | |
282 | # ifndef strdup | |
283 | # define strdup _strdup | |
284 | # endif | |
285 | # define unlink _unlink | |
286 | # define fileno _fileno | |
287 | # endif | |
288 | # else | |
289 | # include <strings.h> | |
290 | # endif | |
291 | ||
292 | /* vxworks */ | |
293 | # if defined(OPENSSL_SYS_VXWORKS) | |
294 | # include <ioLib.h> | |
295 | # include <tickLib.h> | |
296 | # include <sysLib.h> | |
297 | # include <vxWorks.h> | |
298 | # include <sockLib.h> | |
299 | # include <taskLib.h> | |
300 | ||
301 | # define TTY_STRUCT int | |
302 | # define sleep(a) taskDelay((a) * sysClkRateGet()) | |
303 | ||
304 | /* | |
305 | * NOTE: these are implemented by helpers in database app! if the database is | |
306 | * not linked, we need to implement them elsewhere | |
307 | */ | |
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); | |
311 | ||
312 | # endif | |
313 | /* end vxworks */ | |
314 | ||
315 | # ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION | |
316 | # define CRYPTO_memcmp memcmp | |
317 | # endif | |
318 | ||
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 */ | |
325 | # endif | |
326 | #endif |