include/openssl/crypto.h

   1 /*
   2  * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
   4  *
   5  * Licensed under the Apache License 2.0 (the "License").  You may not use
   6  * this file except in compliance with the License.  You can obtain a copy
   7  * in the file LICENSE in the source distribution or at
   8  * https://www.openssl.org/source/license.html
   9  */
  10
  11 #ifndef HEADER_CRYPTO_H
  12 # define HEADER_CRYPTO_H
  13
  14 # include <stdlib.h>
  15 # include <time.h>
  16
  17 # include <openssl/e_os2.h>
  18
  19 # ifndef OPENSSL_NO_STDIO
  20 #  include <stdio.h>
  21 # endif
  22
  23 # include <openssl/safestack.h>
  24 # include <openssl/opensslv.h>
  25 # include <openssl/ossl_typ.h>
  26 # include <openssl/opensslconf.h>
  27 # include <openssl/cryptoerr.h>
  28
  29 # ifdef CHARSET_EBCDIC
  30 #  include <openssl/ebcdic.h>
  31 # endif
  32
  33 /*
  34  * Resolve problems on some operating systems with symbol names that clash
  35  * one way or another
  36  */
  37 # include <openssl/symhacks.h>
  38
  39 # if !OPENSSL_API_1_1_0
  40 #  include <openssl/opensslv.h>
  41 # endif
  42
  43 #ifdef  __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 # if !OPENSSL_API_1_1_0
  48 #  define SSLeay                  OpenSSL_version_num
  49 #  define SSLeay_version          OpenSSL_version
  50 #  define SSLEAY_VERSION_NUMBER   OPENSSL_VERSION_NUMBER
  51 #  define SSLEAY_VERSION          OPENSSL_VERSION
  52 #  define SSLEAY_CFLAGS           OPENSSL_CFLAGS
  53 #  define SSLEAY_BUILT_ON         OPENSSL_BUILT_ON
  54 #  define SSLEAY_PLATFORM         OPENSSL_PLATFORM
  55 #  define SSLEAY_DIR              OPENSSL_DIR
  56
  57 /*
  58  * Old type for allocating dynamic locks. No longer used. Use the new thread
  59  * API instead.
  60  */
  61 typedef struct {
  62     int dummy;
  63 } CRYPTO_dynlock;
  64
  65 # endif /* OPENSSL_API_1_1_0 */
  66
  67 typedef void CRYPTO_RWLOCK;
  68
  69 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void);
  70 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock);
  71 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock);
  72 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock);
  73 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock);
  74
  75 int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock);
  76
  77 /*
  78  * The following can be used to detect memory leaks in the library. If
  79  * used, it turns on malloc checking
  80  */
  81 # define CRYPTO_MEM_CHECK_OFF     0x0   /* Control only */
  82 # define CRYPTO_MEM_CHECK_ON      0x1   /* Control and mode bit */
  83 # define CRYPTO_MEM_CHECK_ENABLE  0x2   /* Control and mode bit */
  84 # define CRYPTO_MEM_CHECK_DISABLE 0x3   /* Control only */
  85
  86 struct crypto_ex_data_st {
  87     OPENSSL_CTX *ctx;
  88     STACK_OF(void) *sk;
  89 };
  90 DEFINE_STACK_OF(void)
  91
  92 /*
  93  * Per class, we have a STACK of function pointers.
  94  */
  95 # define CRYPTO_EX_INDEX_SSL              0
  96 # define CRYPTO_EX_INDEX_SSL_CTX          1
  97 # define CRYPTO_EX_INDEX_SSL_SESSION      2
  98 # define CRYPTO_EX_INDEX_X509             3
  99 # define CRYPTO_EX_INDEX_X509_STORE       4
 100 # define CRYPTO_EX_INDEX_X509_STORE_CTX   5
 101 # define CRYPTO_EX_INDEX_DH               6
 102 # define CRYPTO_EX_INDEX_DSA              7
 103 # define CRYPTO_EX_INDEX_EC_KEY           8
 104 # define CRYPTO_EX_INDEX_RSA              9
 105 # define CRYPTO_EX_INDEX_ENGINE          10
 106 # define CRYPTO_EX_INDEX_UI              11
 107 # define CRYPTO_EX_INDEX_BIO             12
 108 # define CRYPTO_EX_INDEX_APP             13
 109 # define CRYPTO_EX_INDEX_UI_METHOD       14
 110 # define CRYPTO_EX_INDEX_DRBG            15
 111 # define CRYPTO_EX_INDEX_OPENSSL_CTX     16
 112 # define CRYPTO_EX_INDEX__COUNT          17
 113
 114 /* No longer needed, so this is a no-op */
 115 #define OPENSSL_malloc_init() while(0) continue
 116
 117 int CRYPTO_mem_ctrl(int mode);
 118
 119 # define OPENSSL_malloc(num) \
 120         CRYPTO_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 121 # define OPENSSL_zalloc(num) \
 122         CRYPTO_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 123 # define OPENSSL_realloc(addr, num) \
 124         CRYPTO_realloc(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 125 # define OPENSSL_clear_realloc(addr, old_num, num) \
 126         CRYPTO_clear_realloc(addr, old_num, num, OPENSSL_FILE, OPENSSL_LINE)
 127 # define OPENSSL_clear_free(addr, num) \
 128         CRYPTO_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 129 # define OPENSSL_free(addr) \
 130         CRYPTO_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 131 # define OPENSSL_memdup(str, s) \
 132         CRYPTO_memdup((str), s, OPENSSL_FILE, OPENSSL_LINE)
 133 # define OPENSSL_strdup(str) \
 134         CRYPTO_strdup(str, OPENSSL_FILE, OPENSSL_LINE)
 135 # define OPENSSL_strndup(str, n) \
 136         CRYPTO_strndup(str, n, OPENSSL_FILE, OPENSSL_LINE)
 137 # define OPENSSL_secure_malloc(num) \
 138         CRYPTO_secure_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 139 # define OPENSSL_secure_zalloc(num) \
 140         CRYPTO_secure_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 141 # define OPENSSL_secure_free(addr) \
 142         CRYPTO_secure_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 143 # define OPENSSL_secure_clear_free(addr, num) \
 144         CRYPTO_secure_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 145 # define OPENSSL_secure_actual_size(ptr) \
 146         CRYPTO_secure_actual_size(ptr)
 147
 148 size_t OPENSSL_strlcpy(char *dst, const char *src, size_t siz);
 149 size_t OPENSSL_strlcat(char *dst, const char *src, size_t siz);
 150 size_t OPENSSL_strnlen(const char *str, size_t maxlen);
 151 char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len);
 152 unsigned char *OPENSSL_hexstr2buf(const char *str, long *len);
 153 int OPENSSL_hexchar2int(unsigned char c);
 154
 155 # define OPENSSL_MALLOC_MAX_NELEMS(type)  (((1U<<(sizeof(int)*8-1))-1)/sizeof(type))
 156
 157 DEPRECATEDIN_3(unsigned long OpenSSL_version_num(void))
 158 const char *OpenSSL_version(int type);
 159 # define OPENSSL_VERSION                0
 160 # define OPENSSL_CFLAGS                 1
 161 # define OPENSSL_BUILT_ON               2
 162 # define OPENSSL_PLATFORM               3
 163 # define OPENSSL_DIR                    4
 164 # define OPENSSL_ENGINES_DIR            5
 165 # define OPENSSL_VERSION_STRING         6
 166 # define OPENSSL_FULL_VERSION_STRING    7
 167 # define OPENSSL_MODULES_DIR            8
 168
 169 const char *OPENSSL_info(int type);
 170 /*
 171  * The series starts at 1001 to avoid confusion with the OpenSSL_version
 172  * types.
 173  */
 174 # define OPENSSL_INFO_CONFIG_DIR                1001
 175 # define OPENSSL_INFO_ENGINES_DIR               1002
 176 # define OPENSSL_INFO_MODULES_DIR               1003
 177 # define OPENSSL_INFO_DSO_EXTENSION             1004
 178 # define OPENSSL_INFO_DIR_FILENAME_SEPARATOR    1005
 179 # define OPENSSL_INFO_LIST_SEPARATOR            1006
 180
 181 int OPENSSL_issetugid(void);
 182
 183 typedef void CRYPTO_EX_new (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 184                            int idx, long argl, void *argp);
 185 typedef void CRYPTO_EX_free (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 186                              int idx, long argl, void *argp);
 187 typedef int CRYPTO_EX_dup (CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
 188                            void *from_d, int idx, long argl, void *argp);
 189 __owur int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
 190                             CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
 191                             CRYPTO_EX_free *free_func);
 192 /* No longer use an index. */
 193 int CRYPTO_free_ex_index(int class_index, int idx);
 194
 195 /*
 196  * Initialise/duplicate/free CRYPTO_EX_DATA variables corresponding to a
 197  * given class (invokes whatever per-class callbacks are applicable)
 198  */
 199 int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 200 int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
 201                        const CRYPTO_EX_DATA *from);
 202
 203 void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 204
 205 /* Allocate a single item in the CRYPTO_EX_DATA variable */
 206 int CRYPTO_alloc_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad,
 207                          int idx);
 208
 209 /*
 210  * Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular
 211  * index (relative to the class type involved)
 212  */
 213 int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
 214 void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx);
 215
 216 # if !OPENSSL_API_1_1_0
 217 /*
 218  * This function cleans up all "ex_data" state. It mustn't be called under
 219  * potential race-conditions.
 220  */
 221 # define CRYPTO_cleanup_all_ex_data() while(0) continue
 222
 223 /*
 224  * The old locking functions have been removed completely without compatibility
 225  * macros. This is because the old functions either could not properly report
 226  * errors, or the returned error values were not clearly documented.
 227  * Replacing the locking functions with no-ops would cause race condition
 228  * issues in the affected applications. It is far better for them to fail at
 229  * compile time.
 230  * On the other hand, the locking callbacks are no longer used.  Consequently,
 231  * the callback management functions can be safely replaced with no-op macros.
 232  */
 233 #  define CRYPTO_num_locks()            (1)
 234 #  define CRYPTO_set_locking_callback(func)
 235 #  define CRYPTO_get_locking_callback()         (NULL)
 236 #  define CRYPTO_set_add_lock_callback(func)
 237 #  define CRYPTO_get_add_lock_callback()        (NULL)
 238
 239 /*
 240  * These defines where used in combination with the old locking callbacks,
 241  * they are not called anymore, but old code that's not called might still
 242  * use them.
 243  */
 244 #  define CRYPTO_LOCK             1
 245 #  define CRYPTO_UNLOCK           2
 246 #  define CRYPTO_READ             4
 247 #  define CRYPTO_WRITE            8
 248
 249 /* This structure is no longer used */
 250 typedef struct crypto_threadid_st {
 251     int dummy;
 252 } CRYPTO_THREADID;
 253 /* Only use CRYPTO_THREADID_set_[numeric|pointer]() within callbacks */
 254 #  define CRYPTO_THREADID_set_numeric(id, val)
 255 #  define CRYPTO_THREADID_set_pointer(id, ptr)
 256 #  define CRYPTO_THREADID_set_callback(threadid_func)   (0)
 257 #  define CRYPTO_THREADID_get_callback()                (NULL)
 258 #  define CRYPTO_THREADID_current(id)
 259 #  define CRYPTO_THREADID_cmp(a, b)                     (-1)
 260 #  define CRYPTO_THREADID_cpy(dest, src)
 261 #  define CRYPTO_THREADID_hash(id)                      (0UL)
 262
 263 #  if !OPENSSL_API_1_0_0
 264 #   define CRYPTO_set_id_callback(func)
 265 #   define CRYPTO_get_id_callback()                     (NULL)
 266 #   define CRYPTO_thread_id()                           (0UL)
 267 #  endif /* OPENSSL_API_1_0_0 */
 268
 269 #  define CRYPTO_set_dynlock_create_callback(dyn_create_function)
 270 #  define CRYPTO_set_dynlock_lock_callback(dyn_lock_function)
 271 #  define CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function)
 272 #  define CRYPTO_get_dynlock_create_callback()          (NULL)
 273 #  define CRYPTO_get_dynlock_lock_callback()            (NULL)
 274 #  define CRYPTO_get_dynlock_destroy_callback()         (NULL)
 275 # endif /* OPENSSL_API_1_1_0 */
 276
 277 int CRYPTO_set_mem_functions(
 278         void *(*m) (size_t, const char *, int),
 279         void *(*r) (void *, size_t, const char *, int),
 280         void (*f) (void *, const char *, int));
 281 int CRYPTO_set_mem_debug(int flag);
 282 void CRYPTO_get_mem_functions(
 283         void *(**m) (size_t, const char *, int),
 284         void *(**r) (void *, size_t, const char *, int),
 285         void (**f) (void *, const char *, int));
 286
 287 void *CRYPTO_malloc(size_t num, const char *file, int line);
 288 void *CRYPTO_zalloc(size_t num, const char *file, int line);
 289 void *CRYPTO_memdup(const void *str, size_t siz, const char *file, int line);
 290 char *CRYPTO_strdup(const char *str, const char *file, int line);
 291 char *CRYPTO_strndup(const char *str, size_t s, const char *file, int line);
 292 void CRYPTO_free(void *ptr, const char *file, int line);
 293 void CRYPTO_clear_free(void *ptr, size_t num, const char *file, int line);
 294 void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line);
 295 void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
 296                            const char *file, int line);
 297
 298 int CRYPTO_secure_malloc_init(size_t sz, int minsize);
 299 int CRYPTO_secure_malloc_done(void);
 300 void *CRYPTO_secure_malloc(size_t num, const char *file, int line);
 301 void *CRYPTO_secure_zalloc(size_t num, const char *file, int line);
 302 void CRYPTO_secure_free(void *ptr, const char *file, int line);
 303 void CRYPTO_secure_clear_free(void *ptr, size_t num,
 304                               const char *file, int line);
 305 int CRYPTO_secure_allocated(const void *ptr);
 306 int CRYPTO_secure_malloc_initialized(void);
 307 size_t CRYPTO_secure_actual_size(void *ptr);
 308 size_t CRYPTO_secure_used(void);
 309
 310 void OPENSSL_cleanse(void *ptr, size_t len);
 311
 312 # ifndef OPENSSL_NO_CRYPTO_MDEBUG
 313 #  define OPENSSL_mem_debug_push(info) \
 314         CRYPTO_mem_debug_push(info, OPENSSL_FILE, OPENSSL_LINE)
 315 #  define OPENSSL_mem_debug_pop() \
 316         CRYPTO_mem_debug_pop()
 317 int CRYPTO_mem_debug_push(const char *info, const char *file, int line);
 318 int CRYPTO_mem_debug_pop(void);
 319 void CRYPTO_get_alloc_counts(int *mcount, int *rcount, int *fcount);
 320
 321 /*-
 322  * Debugging functions (enabled by CRYPTO_set_mem_debug(1))
 323  * The flag argument has the following significance:
 324  *   0:   called before the actual memory allocation has taken place
 325  *   1:   called after the actual memory allocation has taken place
 326  */
 327 void CRYPTO_mem_debug_malloc(void *addr, size_t num, int flag,
 328         const char *file, int line);
 329 void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, int flag,
 330         const char *file, int line);
 331 void CRYPTO_mem_debug_free(void *addr, int flag,
 332         const char *file, int line);
 333
 334 int CRYPTO_mem_leaks_cb(int (*cb) (const char *str, size_t len, void *u),
 335                         void *u);
 336 #  ifndef OPENSSL_NO_STDIO
 337 int CRYPTO_mem_leaks_fp(FILE *);
 338 #  endif
 339 int CRYPTO_mem_leaks(BIO *bio);
 340 # endif
 341
 342 /* die if we have to */
 343 ossl_noreturn void OPENSSL_die(const char *assertion, const char *file, int line);
 344 # if !OPENSSL_API_1_1_0
 345 #  define OpenSSLDie(f,l,a) OPENSSL_die((a),(f),(l))
 346 # endif
 347 # define OPENSSL_assert(e) \
 348     (void)((e) ? 0 : (OPENSSL_die("assertion failed: " #e, OPENSSL_FILE, OPENSSL_LINE), 1))
 349
 350 int OPENSSL_isservice(void);
 351
 352 int FIPS_mode(void);
 353 int FIPS_mode_set(int r);
 354
 355 void OPENSSL_init(void);
 356 # ifdef OPENSSL_SYS_UNIX
 357 void OPENSSL_fork_prepare(void);
 358 void OPENSSL_fork_parent(void);
 359 void OPENSSL_fork_child(void);
 360 # endif
 361
 362 struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result);
 363 int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
 364 int OPENSSL_gmtime_diff(int *pday, int *psec,
 365                         const struct tm *from, const struct tm *to);
 366
 367 /*
 368  * CRYPTO_memcmp returns zero iff the |len| bytes at |a| and |b| are equal.
 369  * It takes an amount of time dependent on |len|, but independent of the
 370  * contents of |a| and |b|. Unlike memcmp, it cannot be used to put elements
 371  * into a defined order as the return value when a != b is undefined, other
 372  * than to be non-zero.
 373  */
 374 int CRYPTO_memcmp(const void * in_a, const void * in_b, size_t len);
 375
 376 /* Standard initialisation options */
 377 # define OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS 0x00000001L
 378 # define OPENSSL_INIT_LOAD_CRYPTO_STRINGS    0x00000002L
 379 # define OPENSSL_INIT_ADD_ALL_CIPHERS        0x00000004L
 380 # define OPENSSL_INIT_ADD_ALL_DIGESTS        0x00000008L
 381 # define OPENSSL_INIT_NO_ADD_ALL_CIPHERS     0x00000010L
 382 # define OPENSSL_INIT_NO_ADD_ALL_DIGESTS     0x00000020L
 383 # define OPENSSL_INIT_LOAD_CONFIG            0x00000040L
 384 # define OPENSSL_INIT_NO_LOAD_CONFIG         0x00000080L
 385 # define OPENSSL_INIT_ASYNC                  0x00000100L
 386 # define OPENSSL_INIT_ENGINE_RDRAND          0x00000200L
 387 # define OPENSSL_INIT_ENGINE_DYNAMIC         0x00000400L
 388 # define OPENSSL_INIT_ENGINE_OPENSSL         0x00000800L
 389 # define OPENSSL_INIT_ENGINE_CRYPTODEV       0x00001000L
 390 # define OPENSSL_INIT_ENGINE_CAPI            0x00002000L
 391 # define OPENSSL_INIT_ENGINE_PADLOCK         0x00004000L
 392 # define OPENSSL_INIT_ENGINE_AFALG           0x00008000L
 393 /* OPENSSL_INIT_ZLIB                         0x00010000L */
 394 # define OPENSSL_INIT_ATFORK                 0x00020000L
 395 /* OPENSSL_INIT_BASE_ONLY                    0x00040000L */
 396 # define OPENSSL_INIT_NO_ATEXIT              0x00080000L
 397 /* OPENSSL_INIT flag range 0x03f00000 reserved for OPENSSL_init_ssl() */
 398 # define OPENSSL_INIT_NO_ADD_ALL_MACS        0x04000000L
 399 # define OPENSSL_INIT_ADD_ALL_MACS           0x08000000L
 400 /* FREE: 0x10000000L */
 401 /* FREE: 0x20000000L */
 402 /* FREE: 0x40000000L */
 403 /* FREE: 0x80000000L */
 404 /* Max OPENSSL_INIT flag value is 0x80000000 */
 405 # define OPENSSL_INIT_NO_ADD_ALL_KDFS        0x100000000L
 406 # define OPENSSL_INIT_ADD_ALL_KDFS           0x200000000L
 407
 408 /* openssl and dasync not counted as builtin */
 409 # define OPENSSL_INIT_ENGINE_ALL_BUILTIN \
 410     (OPENSSL_INIT_ENGINE_RDRAND | OPENSSL_INIT_ENGINE_DYNAMIC \
 411     | OPENSSL_INIT_ENGINE_CRYPTODEV | OPENSSL_INIT_ENGINE_CAPI | \
 412     OPENSSL_INIT_ENGINE_PADLOCK)
 413
 414
 415 /* Library initialisation functions */
 416 void OPENSSL_cleanup(void);
 417 int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
 418 int OPENSSL_atexit(void (*handler)(void));
 419 void OPENSSL_thread_stop(void);
 420
 421 /* Low-level control of initialization */
 422 OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
 423 # ifndef OPENSSL_NO_STDIO
 424 int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
 425                                      const char *config_filename);
 426 void OPENSSL_INIT_set_config_file_flags(OPENSSL_INIT_SETTINGS *settings,
 427                                         unsigned long flags);
 428 int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
 429                                     const char *config_appname);
 430 # endif
 431 void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);
 432
 433 # if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG)
 434 #  if defined(_WIN32)
 435 #   if defined(BASETYPES) || defined(_WINDEF_H)
 436 /* application has to include <windows.h> in order to use this */
 437 typedef DWORD CRYPTO_THREAD_LOCAL;
 438 typedef DWORD CRYPTO_THREAD_ID;
 439
 440 typedef LONG CRYPTO_ONCE;
 441 #    define CRYPTO_ONCE_STATIC_INIT 0
 442 #   endif
 443 #  else
 444 #   include <pthread.h>
 445 typedef pthread_once_t CRYPTO_ONCE;
 446 typedef pthread_key_t CRYPTO_THREAD_LOCAL;
 447 typedef pthread_t CRYPTO_THREAD_ID;
 448
 449 #   define CRYPTO_ONCE_STATIC_INIT PTHREAD_ONCE_INIT
 450 #  endif
 451 # endif
 452
 453 # if !defined(CRYPTO_ONCE_STATIC_INIT)
 454 typedef unsigned int CRYPTO_ONCE;
 455 typedef unsigned int CRYPTO_THREAD_LOCAL;
 456 typedef unsigned int CRYPTO_THREAD_ID;
 457 #  define CRYPTO_ONCE_STATIC_INIT 0
 458 # endif
 459
 460 int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void));
 461
 462 int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *));
 463 void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key);
 464 int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val);
 465 int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key);
 466
 467 CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void);
 468 int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b);
 469
 470 OPENSSL_CTX *OPENSSL_CTX_new(void);
 471 void OPENSSL_CTX_free(OPENSSL_CTX *);
 472
 473 # ifdef  __cplusplus
 474 }
 475 # endif
 476 #endif