source: azure_iot_hub/trunk/wolfssl-3.15.7/wolfssl/wolfcrypt/wc_port.h@ 388

Last change on this file since 388 was 388, checked in by coas-nagasima, 5 years ago

Azure IoT Hub Device C SDK を使ったサンプルの追加
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File size: 18.3 KB
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1/* wc_port.h
2 *
3 * Copyright (C) 2006-2017 wolfSSL Inc.
4 *
5 * This file is part of wolfSSL.
6 *
7 * wolfSSL is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * wolfSSL is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
20 */
21
22/*!
23 \file wolfssl/wolfcrypt/wc_port.h
24*/
25
26#ifndef WOLF_CRYPT_PORT_H
27#define WOLF_CRYPT_PORT_H
28
29#include <wolfssl/wolfcrypt/settings.h>
30#include <wolfssl/wolfcrypt/visibility.h>
31
32#ifdef __cplusplus
33 extern "C" {
34#endif
35
36/* Detect if compiler supports C99. "NO_WOLF_C99" can be defined in
37 * user_settings.h to disable checking for C99 support. */
38#if !defined(WOLF_C99) && defined(__STDC_VERSION__) && \
39 !defined(WOLFSSL_ARDUINO) && !defined(NO_WOLF_C99)
40 #if __STDC_VERSION__ >= 199901L
41 #define WOLF_C99
42 #endif
43#endif
44
45#ifdef USE_WINDOWS_API
46 #ifdef WOLFSSL_GAME_BUILD
47 #include "system/xtl.h"
48 #else
49 #ifndef WIN32_LEAN_AND_MEAN
50 #define WIN32_LEAN_AND_MEAN
51 #endif
52 #ifndef WOLFSSL_SGX
53 #if defined(_WIN32_WCE) || defined(WIN32_LEAN_AND_MEAN)
54 /* On WinCE winsock2.h must be included before windows.h */
55 #include <winsock2.h>
56 #endif
57 #include <windows.h>
58 #endif /* WOLFSSL_SGX */
59 #endif
60#elif defined(THREADX)
61 #ifndef SINGLE_THREADED
62 #ifdef NEED_THREADX_TYPES
63 #include <types.h>
64 #endif
65 #include <tx_api.h>
66 #endif
67#elif defined(MICRIUM)
68 /* do nothing, just don't pick Unix */
69#elif defined(FREERTOS) || defined(FREERTOS_TCP) || defined(WOLFSSL_SAFERTOS)
70 /* do nothing */
71#elif defined(EBSNET)
72 /* do nothing */
73#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
74 /* do nothing */
75#elif defined(FREESCALE_FREE_RTOS)
76 #include "fsl_os_abstraction.h"
77#elif defined(WOLFSSL_VXWORKS)
78 #include <semLib.h>
79#elif defined(WOLFSSL_uITRON4)
80 #include "stddef.h"
81 #include "kernel.h"
82#elif defined(WOLFSSL_uTKERNEL2)
83 #include "tk/tkernel.h"
84#elif defined(WOLFSSL_CMSIS_RTOS)
85 #include "cmsis_os.h"
86#elif defined(WOLFSSL_MDK_ARM)
87 #if defined(WOLFSSL_MDK5)
88 #include "cmsis_os.h"
89 #else
90 #include <rtl.h>
91 #endif
92#elif defined(WOLFSSL_CMSIS_RTOS)
93 #include "cmsis_os.h"
94#elif defined(WOLFSSL_TIRTOS)
95 #include <ti/sysbios/BIOS.h>
96 #include <ti/sysbios/knl/Semaphore.h>
97#elif defined(WOLFSSL_FROSTED)
98 #include <semaphore.h>
99#elif defined(INTIME_RTOS)
100 #include <rt.h>
101 #include <io.h>
102#elif defined(WOLFSSL_NUCLEUS_1_2)
103 /* NU_DEBUG needed struct access in nucleus_realloc */
104 #define NU_DEBUG
105 #include "plus/nucleus.h"
106 #include "nucleus.h"
107#elif defined(WOLFSSL_APACHE_MYNEWT)
108 /* do nothing */
109#else
110 #ifndef SINGLE_THREADED
111 #define WOLFSSL_PTHREADS
112 #include <pthread.h>
113 #endif
114 #if defined(OPENSSL_EXTRA) || defined(GOAHEAD_WS)
115 #include <unistd.h> /* for close of BIO */
116 #endif
117#endif
118
119/* For FIPS keep the function names the same */
120#ifdef HAVE_FIPS
121#define wc_InitMutex InitMutex
122#define wc_FreeMutex FreeMutex
123#define wc_LockMutex LockMutex
124#define wc_UnLockMutex UnLockMutex
125#endif /* HAVE_FIPS */
126
127#ifdef SINGLE_THREADED
128 typedef int wolfSSL_Mutex;
129#else /* MULTI_THREADED */
130 /* FREERTOS comes first to enable use of FreeRTOS Windows simulator only */
131 #if defined(FREERTOS)
132 typedef xSemaphoreHandle wolfSSL_Mutex;
133 #elif defined(FREERTOS_TCP)
134 #include "FreeRTOS.h"
135 #include "semphr.h"
136 typedef SemaphoreHandle_t wolfSSL_Mutex;
137 #elif defined(WOLFSSL_SAFERTOS)
138 typedef struct wolfSSL_Mutex {
139 signed char mutexBuffer[portQUEUE_OVERHEAD_BYTES];
140 xSemaphoreHandle mutex;
141 } wolfSSL_Mutex;
142 #elif defined(USE_WINDOWS_API)
143 typedef CRITICAL_SECTION wolfSSL_Mutex;
144 #elif defined(WOLFSSL_PTHREADS)
145 typedef pthread_mutex_t wolfSSL_Mutex;
146 #elif defined(THREADX)
147 typedef TX_MUTEX wolfSSL_Mutex;
148 #elif defined(MICRIUM)
149 typedef OS_MUTEX wolfSSL_Mutex;
150 #elif defined(EBSNET)
151 typedef RTP_MUTEX wolfSSL_Mutex;
152 #elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
153 typedef MUTEX_STRUCT wolfSSL_Mutex;
154 #elif defined(FREESCALE_FREE_RTOS)
155 typedef mutex_t wolfSSL_Mutex;
156 #elif defined(WOLFSSL_VXWORKS)
157 typedef SEM_ID wolfSSL_Mutex;
158 #elif defined(WOLFSSL_uITRON4)
159 typedef struct wolfSSL_Mutex {
160 T_CSEM sem ;
161 ID id ;
162 } wolfSSL_Mutex;
163 #elif defined(WOLFSSL_uTKERNEL2)
164 typedef struct wolfSSL_Mutex {
165 T_CSEM sem ;
166 ID id ;
167 } wolfSSL_Mutex;
168 #elif defined(WOLFSSL_MDK_ARM)
169 #if defined(WOLFSSL_CMSIS_RTOS)
170 typedef osMutexId wolfSSL_Mutex;
171 #else
172 typedef OS_MUT wolfSSL_Mutex;
173 #endif
174 #elif defined(WOLFSSL_CMSIS_RTOS)
175 typedef osMutexId wolfSSL_Mutex;
176 #elif defined(WOLFSSL_TIRTOS)
177 typedef ti_sysbios_knl_Semaphore_Handle wolfSSL_Mutex;
178 #elif defined(WOLFSSL_FROSTED)
179 typedef mutex_t * wolfSSL_Mutex;
180 #elif defined(INTIME_RTOS)
181 typedef RTHANDLE wolfSSL_Mutex;
182 #elif defined(WOLFSSL_NUCLEUS_1_2)
183 typedef NU_SEMAPHORE wolfSSL_Mutex;
184 #else
185 #error Need a mutex type in multithreaded mode
186 #endif /* USE_WINDOWS_API */
187#endif /* SINGLE_THREADED */
188
189/* Enable crypt HW mutex for Freescale MMCAU or PIC32MZ */
190#if defined(FREESCALE_MMCAU) || defined(WOLFSSL_MICROCHIP_PIC32MZ)
191 #ifndef WOLFSSL_CRYPT_HW_MUTEX
192 #define WOLFSSL_CRYPT_HW_MUTEX 1
193 #endif
194#endif /* FREESCALE_MMCAU */
195
196#ifndef WOLFSSL_CRYPT_HW_MUTEX
197 #define WOLFSSL_CRYPT_HW_MUTEX 0
198#endif
199
200#if WOLFSSL_CRYPT_HW_MUTEX
201 /* wolfSSL_CryptHwMutexInit is called on first wolfSSL_CryptHwMutexLock,
202 however it's recommended to call this directly on Hw init to avoid possible
203 race condition where two calls to wolfSSL_CryptHwMutexLock are made at
204 the same time. */
205 int wolfSSL_CryptHwMutexInit(void);
206 int wolfSSL_CryptHwMutexLock(void);
207 int wolfSSL_CryptHwMutexUnLock(void);
208#else
209 /* Define stubs, since HW mutex is disabled */
210 #define wolfSSL_CryptHwMutexInit() 0 /* Success */
211 #define wolfSSL_CryptHwMutexLock() 0 /* Success */
212 #define wolfSSL_CryptHwMutexUnLock() (void)0 /* Success */
213#endif /* WOLFSSL_CRYPT_HW_MUTEX */
214
215/* Mutex functions */
216WOLFSSL_API int wc_InitMutex(wolfSSL_Mutex*);
217WOLFSSL_API wolfSSL_Mutex* wc_InitAndAllocMutex(void);
218WOLFSSL_API int wc_FreeMutex(wolfSSL_Mutex*);
219WOLFSSL_API int wc_LockMutex(wolfSSL_Mutex*);
220WOLFSSL_API int wc_UnLockMutex(wolfSSL_Mutex*);
221#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
222/* dynamiclly set which mutex to use. unlock / lock is controlled by flag */
223typedef void (mutex_cb)(int flag, int type, const char* file, int line);
224
225WOLFSSL_API int wc_LockMutex_ex(int flag, int type, const char* file, int line);
226WOLFSSL_API int wc_SetMutexCb(mutex_cb* cb);
227#endif
228
229/* main crypto initialization function */
230WOLFSSL_API int wolfCrypt_Init(void);
231WOLFSSL_API int wolfCrypt_Cleanup(void);
232
233/* filesystem abstraction layer, used by ssl.c */
234#ifndef NO_FILESYSTEM
235
236#if defined(EBSNET)
237 #include "vfapi.h"
238 #include "vfile.h"
239
240 #define XFILE int
241 #define XFOPEN(NAME, MODE) vf_open((const char *)NAME, VO_RDONLY, 0);
242 #define XFSEEK vf_lseek
243 #define XFTELL vf_tell
244 #define XREWIND vf_rewind
245 #define XFREAD(BUF, SZ, AMT, FD) vf_read(FD, BUF, SZ*AMT)
246 #define XFWRITE(BUF, SZ, AMT, FD) vf_write(FD, BUF, SZ*AMT)
247 #define XFCLOSE vf_close
248 #define XSEEK_END VSEEK_END
249 #define XBADFILE -1
250 #define XFGETS(b,s,f) -2 /* Not ported yet */
251#elif defined(LSR_FS)
252 #include <fs.h>
253 #define XFILE struct fs_file*
254 #define XFOPEN(NAME, MODE) fs_open((char*)NAME);
255 #define XFSEEK(F, O, W) (void)F
256 #define XFTELL(F) (F)->len
257 #define XREWIND(F) (void)F
258 #define XFREAD(BUF, SZ, AMT, F) fs_read(F, (char*)BUF, SZ*AMT)
259 #define XFWRITE(BUF, SZ, AMT, F) fs_write(F, (char*)BUF, SZ*AMT)
260 #define XFCLOSE fs_close
261 #define XSEEK_END 0
262 #define XBADFILE NULL
263 #define XFGETS(b,s,f) -2 /* Not ported yet */
264#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
265 #define XFILE MQX_FILE_PTR
266 #define XFOPEN fopen
267 #define XFSEEK fseek
268 #define XFTELL ftell
269 #define XREWIND(F) fseek(F, 0, IO_SEEK_SET)
270 #define XFREAD fread
271 #define XFWRITE fwrite
272 #define XFCLOSE fclose
273 #define XSEEK_END IO_SEEK_END
274 #define XBADFILE NULL
275 #define XFGETS fgets
276#elif defined(MICRIUM)
277 #include <fs_api.h>
278 #define XFILE FS_FILE*
279 #define XFOPEN fs_fopen
280 #define XFSEEK fs_fseek
281 #define XFTELL fs_ftell
282 #define XREWIND fs_rewind
283 #define XFREAD fs_fread
284 #define XFWRITE fs_fwrite
285 #define XFCLOSE fs_fclose
286 #define XSEEK_END FS_SEEK_END
287 #define XBADFILE NULL
288 #define XFGETS(b,s,f) -2 /* Not ported yet */
289#elif defined(WOLFSSL_NUCLEUS_1_2)
290 #include "fal/inc/fal.h"
291 #define XFILE FILE*
292 #define XFOPEN fopen
293 #define XFSEEK fseek
294 #define XFTELL ftell
295 #define XREWIND rewind
296 #define XFREAD fread
297 #define XFWRITE fwrite
298 #define XFCLOSE fclose
299 #define XSEEK_END PSEEK_END
300 #define XBADFILE NULL
301#elif defined(WOLFSSL_APACHE_MYNEWT)
302 #include <fs/fs.h>
303 #define XFILE struct fs_file*
304
305 #define XFOPEN mynewt_fopen
306 #define XFSEEK mynewt_fseek
307 #define XFTELL mynewt_ftell
308 #define XREWIND mynewt_rewind
309 #define XFREAD mynewt_fread
310 #define XFWRITE mynewt_fwrite
311 #define XFCLOSE mynewt_fclose
312 #define XSEEK_END 2
313 #define XBADFILE NULL
314 #define XFGETS(b,s,f) -2 /* Not ported yet */
315#elif defined(WOLFSSL_USER_FILESYSTEM)
316 /* To be defined in user_settings.h */
317#else
318 /* stdio, default case */
319 #include <stdio.h>
320 #define XFILE FILE*
321 #if defined(WOLFSSL_MDK_ARM)
322 extern FILE * wolfSSL_fopen(const char *name, const char *mode) ;
323 #define XFOPEN wolfSSL_fopen
324 #else
325 #define XFOPEN fopen
326 #endif
327 #define XFSEEK fseek
328 #define XFTELL ftell
329 #define XREWIND rewind
330 #define XFREAD fread
331 #define XFWRITE fwrite
332 #define XFCLOSE fclose
333 #define XSEEK_END SEEK_END
334 #define XBADFILE NULL
335 #define XFGETS fgets
336
337 #if !defined(USE_WINDOWS_API) && !defined(NO_WOLFSSL_DIR)\
338 && !defined(WOLFSSL_NUCLEUS) && !defined(WOLFSSL_NUCLEUS_1_2)
339 #include <dirent.h>
340 #include <unistd.h>
341 #include <sys/stat.h>
342 #endif
343#endif
344
345 #ifndef MAX_FILENAME_SZ
346 #define MAX_FILENAME_SZ 256 /* max file name length */
347 #endif
348 #ifndef MAX_PATH
349 #define MAX_PATH 256
350 #endif
351
352#if !defined(NO_WOLFSSL_DIR) && !defined(WOLFSSL_NUCLEUS) && \
353 !defined(WOLFSSL_NUCLEUS_1_2)
354 typedef struct ReadDirCtx {
355 #ifdef USE_WINDOWS_API
356 WIN32_FIND_DATAA FindFileData;
357 HANDLE hFind;
358 #else
359 struct dirent* entry;
360 DIR* dir;
361 struct stat s;
362 #endif
363 char name[MAX_FILENAME_SZ];
364 } ReadDirCtx;
365
366 #define WC_READDIR_NOFILE -1
367
368 WOLFSSL_API int wc_ReadDirFirst(ReadDirCtx* ctx, const char* path, char** name);
369 WOLFSSL_API int wc_ReadDirNext(ReadDirCtx* ctx, const char* path, char** name);
370 WOLFSSL_API void wc_ReadDirClose(ReadDirCtx* ctx);
371#endif /* !NO_WOLFSSL_DIR */
372
373#endif /* !NO_FILESYSTEM */
374
375/* Windows API defines its own min() macro. */
376#if defined(USE_WINDOWS_API)
377 #if defined(min) || defined(WOLFSSL_MYSQL_COMPATIBLE)
378 #define WOLFSSL_HAVE_MIN
379 #endif /* min */
380 #if defined(max) || defined(WOLFSSL_MYSQL_COMPATIBLE)
381 #define WOLFSSL_HAVE_MAX
382 #endif /* max */
383#endif /* USE_WINDOWS_API */
384
385/* Time functions */
386#ifndef NO_ASN_TIME
387#if defined(USER_TIME)
388 /* Use our gmtime and time_t/struct tm types.
389 Only needs seconds since EPOCH using XTIME function.
390 time_t XTIME(time_t * timer) {}
391 */
392 #define WOLFSSL_GMTIME
393 #define USE_WOLF_TM
394 #define USE_WOLF_TIME_T
395
396#elif defined(TIME_OVERRIDES)
397 /* Override XTIME() and XGMTIME() functionality.
398 Requires user to provide these functions:
399 time_t XTIME(time_t * timer) {}
400 struct tm* XGMTIME(const time_t* timer, struct tm* tmp) {}
401 */
402 #ifndef HAVE_TIME_T_TYPE
403 #define USE_WOLF_TIME_T
404 #endif
405 #ifndef HAVE_TM_TYPE
406 #define USE_WOLF_TM
407 #endif
408 #define NEED_TMP_TIME
409
410#elif defined(HAVE_RTP_SYS)
411 #include "os.h" /* dc_rtc_api needs */
412 #include "dc_rtc_api.h" /* to get current time */
413
414 /* uses parital <time.h> structures */
415 #define XTIME(tl) (0)
416 #define XGMTIME(c, t) rtpsys_gmtime((c))
417
418#elif defined(MICRIUM)
419 #include <clk.h>
420 #include <time.h>
421 #define XTIME(t1) micrium_time((t1))
422 #define WOLFSSL_GMTIME
423
424#elif defined(MICROCHIP_TCPIP_V5) || defined(MICROCHIP_TCPIP)
425 #include <time.h>
426 #define XTIME(t1) pic32_time((t1))
427 #define XGMTIME(c, t) gmtime((c))
428
429#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
430 #ifdef FREESCALE_MQX_4_0
431 #include <time.h>
432 extern time_t mqx_time(time_t* timer);
433 #else
434 #define HAVE_GMTIME_R
435 #endif
436 #define XTIME(t1) mqx_time((t1))
437
438#elif defined(FREESCALE_KSDK_BM) || defined(FREESCALE_FREE_RTOS) || defined(FREESCALE_KSDK_FREERTOS)
439 #include <time.h>
440 #ifndef XTIME
441 /*extern time_t ksdk_time(time_t* timer);*/
442 #define XTIME(t1) ksdk_time((t1))
443 #endif
444 #define XGMTIME(c, t) gmtime((c))
445
446#elif defined(WOLFSSL_ATMEL) && defined(WOLFSSL_ATMEL_TIME)
447 #define XTIME(t1) atmel_get_curr_time_and_date((t1))
448 #define WOLFSSL_GMTIME
449 #define USE_WOLF_TM
450 #define USE_WOLF_TIME_T
451
452#elif defined(IDIRECT_DEV_TIME)
453 /*Gets the timestamp from cloak software owned by VT iDirect
454 in place of time() from <time.h> */
455 #include <time.h>
456 #define XTIME(t1) idirect_time((t1))
457 #define XGMTIME(c, t) gmtime((c))
458
459#elif defined(_WIN32_WCE)
460 #include <windows.h>
461 #define XTIME(t1) windows_time((t1))
462 #define WOLFSSL_GMTIME
463
464#elif defined(WOLFSSL_APACHE_MYNEWT)
465 #include "os/os_time.h"
466 #define XTIME(t1) mynewt_time((t1))
467 #define WOLFSSL_GMTIME
468 #define USE_WOLF_TM
469 #define USE_WOLF_TIME_T
470#else
471 /* default */
472 /* uses complete <time.h> facility */
473 #include <time.h>
474 #if defined(HAVE_SYS_TIME_H)
475 #include <sys/time.h>
476 #endif
477
478 /* PowerPC time_t is int */
479 #ifdef __PPC__
480 #define TIME_T_NOT_64BIT
481 #endif
482#endif
483
484#ifdef SIZEOF_TIME_T
485 /* check if size of time_t from autoconf is less than 8 bytes (64bits) */
486 #if SIZEOF_TIME_T < 8
487 #undef TIME_T_NOT_64BIT
488 #define TIME_T_NOT_64BIT
489 #endif
490#endif
491#ifdef TIME_T_NOT_LONG
492 /* one old reference to TIME_T_NOT_LONG in GCC-ARM example README
493 * this keeps support for the old macro name */
494 #undef TIME_T_NOT_64BIT
495 #define TIME_T_NOT_64BIT
496#endif
497
498/* Map default time functions */
499#if !defined(XTIME) && !defined(TIME_OVERRIDES) && !defined(USER_TIME)
500 #define XTIME(tl) time((tl))
501#endif
502#if !defined(XGMTIME) && !defined(TIME_OVERRIDES)
503 #if defined(WOLFSSL_GMTIME) || !defined(HAVE_GMTIME_R) || defined(WOLF_C99)
504 #define XGMTIME(c, t) gmtime((c))
505 #else
506 #define XGMTIME(c, t) gmtime_r((c), (t))
507 #define NEED_TMP_TIME
508 #endif
509#endif
510#if !defined(XVALIDATE_DATE) && !defined(HAVE_VALIDATE_DATE)
511 #define USE_WOLF_VALIDDATE
512 #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
513#endif
514
515/* wolf struct tm and time_t */
516#if defined(USE_WOLF_TM)
517 struct tm {
518 int tm_sec; /* seconds after the minute [0-60] */
519 int tm_min; /* minutes after the hour [0-59] */
520 int tm_hour; /* hours since midnight [0-23] */
521 int tm_mday; /* day of the month [1-31] */
522 int tm_mon; /* months since January [0-11] */
523 int tm_year; /* years since 1900 */
524 int tm_wday; /* days since Sunday [0-6] */
525 int tm_yday; /* days since January 1 [0-365] */
526 int tm_isdst; /* Daylight Savings Time flag */
527 long tm_gmtoff; /* offset from CUT in seconds */
528 char *tm_zone; /* timezone abbreviation */
529 };
530#endif /* USE_WOLF_TM */
531#if defined(USE_WOLF_TIME_T)
532 typedef long time_t;
533#endif
534#if defined(USE_WOLF_SUSECONDS_T)
535 typedef long suseconds_t;
536#endif
537#if defined(USE_WOLF_TIMEVAL_T)
538 struct timeval
539 {
540 time_t tv_sec;
541 suseconds_t tv_usec;
542 };
543#endif
544
545 /* forward declarations */
546#if defined(USER_TIME)
547 struct tm* gmtime(const time_t* timer);
548 extern time_t XTIME(time_t * timer);
549
550 #ifdef STACK_TRAP
551 /* for stack trap tracking, don't call os gmtime on OS X/linux,
552 uses a lot of stack spce */
553 extern time_t time(time_t * timer);
554 #define XTIME(tl) time((tl))
555 #endif /* STACK_TRAP */
556
557#elif defined(TIME_OVERRIDES)
558 extern time_t XTIME(time_t * timer);
559 extern struct tm* XGMTIME(const time_t* timer, struct tm* tmp);
560#elif defined(WOLFSSL_GMTIME)
561 struct tm* gmtime(const time_t* timer);
562#endif
563#endif /* NO_ASN_TIME */
564
565#ifndef WOLFSSL_LEANPSK
566 char* mystrnstr(const char* s1, const char* s2, unsigned int n);
567#endif
568
569#ifndef FILE_BUFFER_SIZE
570 #define FILE_BUFFER_SIZE 1024 /* default static file buffer size for input,
571 will use dynamic buffer if not big enough */
572#endif
573
574
575#ifdef __cplusplus
576 } /* extern "C" */
577#endif
578
579#endif /* WOLF_CRYPT_PORT_H */
580
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