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 OPENSSL_CRYPTO_H
  12 # define OPENSSL_CRYPTO_H
  13 # pragma once
  14
  15 # include <openssl/macros.h>
  16 # if !OPENSSL_API_3
  17 #  define HEADER_CRYPTO_H
  18 # endif
  19
  20 # include <stdlib.h>
  21 # include <time.h>
  22
  23 # include <openssl/e_os2.h>
  24
  25 # ifndef OPENSSL_NO_STDIO
  26 #  include <stdio.h>
  27 # endif
  28
  29 # include <openssl/safestack.h>
  30 # include <openssl/opensslv.h>
  31 # include <openssl/types.h>
  32 # include <openssl/opensslconf.h>
  33 # include <openssl/cryptoerr.h>
  34
  35 # ifdef CHARSET_EBCDIC
  36 #  include <openssl/ebcdic.h>
  37 # endif
  38
  39 /*
  40  * Resolve problems on some operating systems with symbol names that clash
  41  * one way or another
  42  */
  43 # include <openssl/symhacks.h>
  44
  45 # if !OPENSSL_API_1_1_0
  46 #  include <openssl/opensslv.h>
  47 # endif
  48
  49 #ifdef  __cplusplus
  50 extern "C" {
  51 #endif
  52
  53 # if !OPENSSL_API_1_1_0
  54 #  define SSLeay                  OpenSSL_version_num
  55 #  define SSLeay_version          OpenSSL_version
  56 #  define SSLEAY_VERSION_NUMBER   OPENSSL_VERSION_NUMBER
  57 #  define SSLEAY_VERSION          OPENSSL_VERSION
  58 #  define SSLEAY_CFLAGS           OPENSSL_CFLAGS
  59 #  define SSLEAY_BUILT_ON         OPENSSL_BUILT_ON
  60 #  define SSLEAY_PLATFORM         OPENSSL_PLATFORM
  61 #  define SSLEAY_DIR              OPENSSL_DIR
  62
  63 /*
  64  * Old type for allocating dynamic locks. No longer used. Use the new thread
  65  * API instead.
  66  */
  67 typedef struct {
  68     int dummy;
  69 } CRYPTO_dynlock;
  70
  71 # endif /* OPENSSL_API_1_1_0 */
  72
  73 typedef void CRYPTO_RWLOCK;
  74
  75 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void);
  76 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock);
  77 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock);
  78 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock);
  79 void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock);
  80
  81 int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock);
  82
  83 /*
  84  * The following can be used to detect memory leaks in the library. If
  85  * used, it turns on malloc checking
  86  */
  87 # define CRYPTO_MEM_CHECK_OFF     0x0   /* Control only */
  88 # define CRYPTO_MEM_CHECK_ON      0x1   /* Control and mode bit */
  89 # define CRYPTO_MEM_CHECK_ENABLE  0x2   /* Control and mode bit */
  90 # define CRYPTO_MEM_CHECK_DISABLE 0x3   /* Control only */
  91
  92 struct crypto_ex_data_st {
  93     OPENSSL_CTX *ctx;
  94     STACK_OF(void) *sk;
  95 };
  96 DEFINE_STACK_OF(void)
  97
  98 /*
  99  * Per class, we have a STACK of function pointers.
 100  */
 101 # define CRYPTO_EX_INDEX_SSL              0
 102 # define CRYPTO_EX_INDEX_SSL_CTX          1
 103 # define CRYPTO_EX_INDEX_SSL_SESSION      2
 104 # define CRYPTO_EX_INDEX_X509             3
 105 # define CRYPTO_EX_INDEX_X509_STORE       4
 106 # define CRYPTO_EX_INDEX_X509_STORE_CTX   5
 107 # define CRYPTO_EX_INDEX_DH               6
 108 # define CRYPTO_EX_INDEX_DSA              7
 109 # define CRYPTO_EX_INDEX_EC_KEY           8
 110 # define CRYPTO_EX_INDEX_RSA              9
 111 # define CRYPTO_EX_INDEX_ENGINE          10
 112 # define CRYPTO_EX_INDEX_UI              11
 113 # define CRYPTO_EX_INDEX_BIO             12
 114 # define CRYPTO_EX_INDEX_APP             13
 115 # define CRYPTO_EX_INDEX_UI_METHOD       14
 116 # define CRYPTO_EX_INDEX_RAND_DRBG       15
 117 # define CRYPTO_EX_INDEX_DRBG            CRYPTO_EX_INDEX_RAND_DRBG
 118 # define CRYPTO_EX_INDEX_OPENSSL_CTX     16
 119 # define CRYPTO_EX_INDEX__COUNT          17
 120
 121 /* No longer needed, so this is a no-op */
 122 #define OPENSSL_malloc_init() while(0) continue
 123
 124 int CRYPTO_mem_ctrl(int mode);
 125
 126 # define OPENSSL_malloc(num) \
 127         CRYPTO_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 128 # define OPENSSL_zalloc(num) \
 129         CRYPTO_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 130 # define OPENSSL_realloc(addr, num) \
 131         CRYPTO_realloc(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 132 # define OPENSSL_clear_realloc(addr, old_num, num) \
 133         CRYPTO_clear_realloc(addr, old_num, num, OPENSSL_FILE, OPENSSL_LINE)
 134 # define OPENSSL_clear_free(addr, num) \
 135         CRYPTO_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 136 # define OPENSSL_free(addr) \
 137         CRYPTO_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 138 # define OPENSSL_memdup(str, s) \
 139         CRYPTO_memdup((str), s, OPENSSL_FILE, OPENSSL_LINE)
 140 # define OPENSSL_strdup(str) \
 141         CRYPTO_strdup(str, OPENSSL_FILE, OPENSSL_LINE)
 142 # define OPENSSL_strndup(str, n) \
 143         CRYPTO_strndup(str, n, OPENSSL_FILE, OPENSSL_LINE)
 144 # define OPENSSL_secure_malloc(num) \
 145         CRYPTO_secure_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 146 # define OPENSSL_secure_zalloc(num) \
 147         CRYPTO_secure_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 148 # define OPENSSL_secure_free(addr) \
 149         CRYPTO_secure_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 150 # define OPENSSL_secure_clear_free(addr, num) \
 151         CRYPTO_secure_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 152 # define OPENSSL_secure_actual_size(ptr) \
 153         CRYPTO_secure_actual_size(ptr)
 154
 155 size_t OPENSSL_strlcpy(char *dst, const char *src, size_t siz);
 156 size_t OPENSSL_strlcat(char *dst, const char *src, size_t siz);
 157 size_t OPENSSL_strnlen(const char *str, size_t maxlen);
 158 int OPENSSL_buf2hexstr_ex(char *str, size_t str_n, size_t *strlen,
 159                           const unsigned char *buf, size_t buflen);
 160 char *OPENSSL_buf2hexstr(const unsigned char *buf, long buflen);
 161 int OPENSSL_hexstr2buf_ex(unsigned char *buf, size_t buf_n, size_t *buflen,
 162                           const char *str);
 163 unsigned char *OPENSSL_hexstr2buf(const char *str, long *buflen);
 164 int OPENSSL_hexchar2int(unsigned char c);
 165
 166 # define OPENSSL_MALLOC_MAX_NELEMS(type)  (((1U<<(sizeof(int)*8-1))-1)/sizeof(type))
 167
 168 /*
 169  * These functions return the values of OPENSSL_VERSION_MAJOR,
 170  * OPENSSL_VERSION_MINOR, OPENSSL_VERSION_PATCH, OPENSSL_VERSION_PRE_RELEASE
 171  * and OPENSSL_VERSION_BUILD_METADATA, respectively.
 172  */
 173 unsigned int OPENSSL_version_major(void);
 174 unsigned int OPENSSL_version_minor(void);
 175 unsigned int OPENSSL_version_patch(void);
 176 const char *OPENSSL_version_pre_release(void);
 177 const char *OPENSSL_version_build_metadata(void);
 178
 179 unsigned long OpenSSL_version_num(void);
 180 const char *OpenSSL_version(int type);
 181 # define OPENSSL_VERSION                0
 182 # define OPENSSL_CFLAGS                 1
 183 # define OPENSSL_BUILT_ON               2
 184 # define OPENSSL_PLATFORM               3
 185 # define OPENSSL_DIR                    4
 186 # define OPENSSL_ENGINES_DIR            5
 187 # define OPENSSL_VERSION_STRING         6
 188 # define OPENSSL_FULL_VERSION_STRING    7
 189 # define OPENSSL_MODULES_DIR            8
 190 # define OPENSSL_CPU_INFO               9
 191
 192 const char *OPENSSL_info(int type);
 193 /*
 194  * The series starts at 1001 to avoid confusion with the OpenSSL_version
 195  * types.
 196  */
 197 # define OPENSSL_INFO_CONFIG_DIR                1001
 198 # define OPENSSL_INFO_ENGINES_DIR               1002
 199 # define OPENSSL_INFO_MODULES_DIR               1003
 200 # define OPENSSL_INFO_DSO_EXTENSION             1004
 201 # define OPENSSL_INFO_DIR_FILENAME_SEPARATOR    1005
 202 # define OPENSSL_INFO_LIST_SEPARATOR            1006
 203 # define OPENSSL_INFO_SEED_SOURCE               1007
 204 # define OPENSSL_INFO_CPU_SETTINGS              1008
 205
 206 int OPENSSL_issetugid(void);
 207
 208 typedef void CRYPTO_EX_new (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 209                            int idx, long argl, void *argp);
 210 typedef void CRYPTO_EX_free (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 211                              int idx, long argl, void *argp);
 212 typedef int CRYPTO_EX_dup (CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
 213                            void *from_d, int idx, long argl, void *argp);
 214 __owur int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
 215                             CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
 216                             CRYPTO_EX_free *free_func);
 217 /* No longer use an index. */
 218 int CRYPTO_free_ex_index(int class_index, int idx);
 219
 220 /*
 221  * Initialise/duplicate/free CRYPTO_EX_DATA variables corresponding to a
 222  * given class (invokes whatever per-class callbacks are applicable)
 223  */
 224 int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 225 int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
 226                        const CRYPTO_EX_DATA *from);
 227
 228 void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 229
 230 /* Allocate a single item in the CRYPTO_EX_DATA variable */
 231 int CRYPTO_alloc_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad,
 232                          int idx);
 233
 234 /*
 235  * Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular
 236  * index (relative to the class type involved)
 237  */
 238 int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
 239 void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx);
 240
 241 # if !OPENSSL_API_1_1_0
 242 /*
 243  * This function cleans up all "ex_data" state. It mustn't be called under
 244  * potential race-conditions.
 245  */
 246 # define CRYPTO_cleanup_all_ex_data() while(0) continue
 247
 248 /*
 249  * The old locking functions have been removed completely without compatibility
 250  * macros. This is because the old functions either could not properly report
 251  * errors, or the returned error values were not clearly documented.
 252  * Replacing the locking functions with no-ops would cause race condition
 253  * issues in the affected applications. It is far better for them to fail at
 254  * compile time.
 255  * On the other hand, the locking callbacks are no longer used.  Consequently,
 256  * the callback management functions can be safely replaced with no-op macros.
 257  */
 258 #  define CRYPTO_num_locks()            (1)
 259 #  define CRYPTO_set_locking_callback(func)
 260 #  define CRYPTO_get_locking_callback()         (NULL)
 261 #  define CRYPTO_set_add_lock_callback(func)
 262 #  define CRYPTO_get_add_lock_callback()        (NULL)
 263
 264 /*
 265  * These defines where used in combination with the old locking callbacks,
 266  * they are not called anymore, but old code that's not called might still
 267  * use them.
 268  */
 269 #  define CRYPTO_LOCK             1
 270 #  define CRYPTO_UNLOCK           2
 271 #  define CRYPTO_READ             4
 272 #  define CRYPTO_WRITE            8
 273
 274 /* This structure is no longer used */
 275 typedef struct crypto_threadid_st {
 276     int dummy;
 277 } CRYPTO_THREADID;
 278 /* Only use CRYPTO_THREADID_set_[numeric|pointer]() within callbacks */
 279 #  define CRYPTO_THREADID_set_numeric(id, val)
 280 #  define CRYPTO_THREADID_set_pointer(id, ptr)
 281 #  define CRYPTO_THREADID_set_callback(threadid_func)   (0)
 282 #  define CRYPTO_THREADID_get_callback()                (NULL)
 283 #  define CRYPTO_THREADID_current(id)
 284 #  define CRYPTO_THREADID_cmp(a, b)                     (-1)
 285 #  define CRYPTO_THREADID_cpy(dest, src)
 286 #  define CRYPTO_THREADID_hash(id)                      (0UL)
 287
 288 #  if !OPENSSL_API_1_0_0
 289 #   define CRYPTO_set_id_callback(func)
 290 #   define CRYPTO_get_id_callback()                     (NULL)
 291 #   define CRYPTO_thread_id()                           (0UL)
 292 #  endif /* OPENSSL_API_1_0_0 */
 293
 294 #  define CRYPTO_set_dynlock_create_callback(dyn_create_function)
 295 #  define CRYPTO_set_dynlock_lock_callback(dyn_lock_function)
 296 #  define CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function)
 297 #  define CRYPTO_get_dynlock_create_callback()          (NULL)
 298 #  define CRYPTO_get_dynlock_lock_callback()            (NULL)
 299 #  define CRYPTO_get_dynlock_destroy_callback()         (NULL)
 300 # endif /* OPENSSL_API_1_1_0 */
 301
 302 int CRYPTO_set_mem_functions(
 303         void *(*m) (size_t, const char *, int),
 304         void *(*r) (void *, size_t, const char *, int),
 305         void (*f) (void *, const char *, int));
 306 int CRYPTO_set_mem_debug(int flag);
 307 void CRYPTO_get_mem_functions(
 308         void *(**m) (size_t, const char *, int),
 309         void *(**r) (void *, size_t, const char *, int),
 310         void (**f) (void *, const char *, int));
 311
 312 void *CRYPTO_malloc(size_t num, const char *file, int line);
 313 void *CRYPTO_zalloc(size_t num, const char *file, int line);
 314 void *CRYPTO_memdup(const void *str, size_t siz, const char *file, int line);
 315 char *CRYPTO_strdup(const char *str, const char *file, int line);
 316 char *CRYPTO_strndup(const char *str, size_t s, const char *file, int line);
 317 void CRYPTO_free(void *ptr, const char *file, int line);
 318 void CRYPTO_clear_free(void *ptr, size_t num, const char *file, int line);
 319 void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line);
 320 void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
 321                            const char *file, int line);
 322
 323 int CRYPTO_secure_malloc_init(size_t sz, int minsize);
 324 int CRYPTO_secure_malloc_done(void);
 325 void *CRYPTO_secure_malloc(size_t num, const char *file, int line);
 326 void *CRYPTO_secure_zalloc(size_t num, const char *file, int line);
 327 void CRYPTO_secure_free(void *ptr, const char *file, int line);
 328 void CRYPTO_secure_clear_free(void *ptr, size_t num,
 329                               const char *file, int line);
 330 int CRYPTO_secure_allocated(const void *ptr);
 331 int CRYPTO_secure_malloc_initialized(void);
 332 size_t CRYPTO_secure_actual_size(void *ptr);
 333 size_t CRYPTO_secure_used(void);
 334
 335 void OPENSSL_cleanse(void *ptr, size_t len);
 336
 337 # ifndef OPENSSL_NO_CRYPTO_MDEBUG
 338 #  if !OPENSSL_API_3
 339 #    define OPENSSL_mem_debug_push(info) \
 340          CRYPTO_mem_debug_push(info, OPENSSL_FILE, OPENSSL_LINE)
 341 #    define OPENSSL_mem_debug_pop() \
 342          CRYPTO_mem_debug_pop()
 343 #  endif
 344 DEPRECATEDIN_3(int CRYPTO_mem_debug_push(const char *info,
 345                                          const char *file, int line))
 346 DEPRECATEDIN_3(int CRYPTO_mem_debug_pop(void))
 347
 348 void CRYPTO_get_alloc_counts(int *mcount, int *rcount, int *fcount);
 349
 350 /*-
 351  * Debugging functions (enabled by CRYPTO_set_mem_debug(1))
 352  * The flag argument has the following significance:
 353  *   0:   called before the actual memory allocation has taken place
 354  *   1:   called after the actual memory allocation has taken place
 355  */
 356 void CRYPTO_mem_debug_malloc(void *addr, size_t num, int flag,
 357         const char *file, int line);
 358 void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, int flag,
 359         const char *file, int line);
 360 void CRYPTO_mem_debug_free(void *addr, int flag,
 361         const char *file, int line);
 362
 363 int CRYPTO_mem_leaks_cb(int (*cb) (const char *str, size_t len, void *u),
 364                         void *u);
 365 #  ifndef OPENSSL_NO_STDIO
 366 int CRYPTO_mem_leaks_fp(FILE *);
 367 #  endif
 368 int CRYPTO_mem_leaks(BIO *bio);
 369 # endif
 370
 371 /* die if we have to */
 372 ossl_noreturn void OPENSSL_die(const char *assertion, const char *file, int line);
 373 # if !OPENSSL_API_1_1_0
 374 #  define OpenSSLDie(f,l,a) OPENSSL_die((a),(f),(l))
 375 # endif
 376 # define OPENSSL_assert(e) \
 377     (void)((e) ? 0 : (OPENSSL_die("assertion failed: " #e, OPENSSL_FILE, OPENSSL_LINE), 1))
 378
 379 int OPENSSL_isservice(void);
 380
 381 int FIPS_mode(void);
 382 int FIPS_mode_set(int r);
 383
 384 void OPENSSL_init(void);
 385 # ifdef OPENSSL_SYS_UNIX
 386 void OPENSSL_fork_prepare(void);
 387 void OPENSSL_fork_parent(void);
 388 void OPENSSL_fork_child(void);
 389 # endif
 390
 391 struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result);
 392 int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
 393 int OPENSSL_gmtime_diff(int *pday, int *psec,
 394                         const struct tm *from, const struct tm *to);
 395
 396 /*
 397  * CRYPTO_memcmp returns zero iff the |len| bytes at |a| and |b| are equal.
 398  * It takes an amount of time dependent on |len|, but independent of the
 399  * contents of |a| and |b|. Unlike memcmp, it cannot be used to put elements
 400  * into a defined order as the return value when a != b is undefined, other
 401  * than to be non-zero.
 402  */
 403 int CRYPTO_memcmp(const void * in_a, const void * in_b, size_t len);
 404
 405 /* Standard initialisation options */
 406 # define OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS 0x00000001L
 407 # define OPENSSL_INIT_LOAD_CRYPTO_STRINGS    0x00000002L
 408 # define OPENSSL_INIT_ADD_ALL_CIPHERS        0x00000004L
 409 # define OPENSSL_INIT_ADD_ALL_DIGESTS        0x00000008L
 410 # define OPENSSL_INIT_NO_ADD_ALL_CIPHERS     0x00000010L
 411 # define OPENSSL_INIT_NO_ADD_ALL_DIGESTS     0x00000020L
 412 # define OPENSSL_INIT_LOAD_CONFIG            0x00000040L
 413 # define OPENSSL_INIT_NO_LOAD_CONFIG         0x00000080L
 414 # define OPENSSL_INIT_ASYNC                  0x00000100L
 415 # define OPENSSL_INIT_ENGINE_RDRAND          0x00000200L
 416 # define OPENSSL_INIT_ENGINE_DYNAMIC         0x00000400L
 417 # define OPENSSL_INIT_ENGINE_OPENSSL         0x00000800L
 418 # define OPENSSL_INIT_ENGINE_CRYPTODEV       0x00001000L
 419 # define OPENSSL_INIT_ENGINE_CAPI            0x00002000L
 420 # define OPENSSL_INIT_ENGINE_PADLOCK         0x00004000L
 421 # define OPENSSL_INIT_ENGINE_AFALG           0x00008000L
 422 /* OPENSSL_INIT_ZLIB                         0x00010000L */
 423 # define OPENSSL_INIT_ATFORK                 0x00020000L
 424 /* OPENSSL_INIT_BASE_ONLY                    0x00040000L */
 425 # define OPENSSL_INIT_NO_ATEXIT              0x00080000L
 426 /* OPENSSL_INIT flag range 0x03f00000 reserved for OPENSSL_init_ssl() */
 427 /* FREE: 0x04000000L */
 428 /* FREE: 0x08000000L */
 429 /* FREE: 0x10000000L */
 430 /* FREE: 0x20000000L */
 431 /* FREE: 0x40000000L */
 432 /* FREE: 0x80000000L */
 433 /* Max OPENSSL_INIT flag value is 0x80000000 */
 434
 435 /* openssl and dasync not counted as builtin */
 436 # define OPENSSL_INIT_ENGINE_ALL_BUILTIN \
 437     (OPENSSL_INIT_ENGINE_RDRAND | OPENSSL_INIT_ENGINE_DYNAMIC \
 438     | OPENSSL_INIT_ENGINE_CRYPTODEV | OPENSSL_INIT_ENGINE_CAPI | \
 439     OPENSSL_INIT_ENGINE_PADLOCK)
 440
 441
 442 /* Library initialisation functions */
 443 void OPENSSL_cleanup(void);
 444 int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
 445 int OPENSSL_atexit(void (*handler)(void));
 446 void OPENSSL_thread_stop(void);
 447 void OPENSSL_thread_stop_ex(OPENSSL_CTX *ctx);
 448
 449 /* Low-level control of initialization */
 450 OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
 451 # ifndef OPENSSL_NO_STDIO
 452 int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
 453                                      const char *config_filename);
 454 void OPENSSL_INIT_set_config_file_flags(OPENSSL_INIT_SETTINGS *settings,
 455                                         unsigned long flags);
 456 int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
 457                                     const char *config_appname);
 458 # endif
 459 void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);
 460
 461 # if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG)
 462 #  if defined(_WIN32)
 463 #   if defined(BASETYPES) || defined(_WINDEF_H)
 464 /* application has to include <windows.h> in order to use this */
 465 typedef DWORD CRYPTO_THREAD_LOCAL;
 466 typedef DWORD CRYPTO_THREAD_ID;
 467
 468 typedef LONG CRYPTO_ONCE;
 469 #    define CRYPTO_ONCE_STATIC_INIT 0
 470 #   endif
 471 #  else
 472 #   include <pthread.h>
 473 typedef pthread_once_t CRYPTO_ONCE;
 474 typedef pthread_key_t CRYPTO_THREAD_LOCAL;
 475 typedef pthread_t CRYPTO_THREAD_ID;
 476
 477 #   define CRYPTO_ONCE_STATIC_INIT PTHREAD_ONCE_INIT
 478 #  endif
 479 # endif
 480
 481 # if !defined(CRYPTO_ONCE_STATIC_INIT)
 482 typedef unsigned int CRYPTO_ONCE;
 483 typedef unsigned int CRYPTO_THREAD_LOCAL;
 484 typedef unsigned int CRYPTO_THREAD_ID;
 485 #  define CRYPTO_ONCE_STATIC_INIT 0
 486 # endif
 487
 488 int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void));
 489
 490 int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *));
 491 void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key);
 492 int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val);
 493 int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key);
 494
 495 CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void);
 496 int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b);
 497
 498 OPENSSL_CTX *OPENSSL_CTX_new(void);
 499 void OPENSSL_CTX_free(OPENSSL_CTX *);
 500
 501 # ifdef  __cplusplus
 502 }
 503 # endif
 504 #endif