[thirdparty/openssl.git] / include / openssl / crypto.h

/* ====================================================================
 * Copyright (c) 1998-2016 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECDH support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#ifndef HEADER_CRYPTO_H
# define HEADER_CRYPTO_H

# include <stdlib.h>
# include <time.h>

# include <openssl/e_os2.h>

# ifndef OPENSSL_NO_STDIO
#  include <stdio.h>
# endif

# include <openssl/stack.h>
# include <openssl/safestack.h>
# include <openssl/opensslv.h>
# include <openssl/ossl_typ.h>
# include <openssl/opensslconf.h>

# ifdef CHARSET_EBCDIC
#  include <openssl/ebcdic.h>
# endif

/*
 * Resolve problems on some operating systems with symbol names that clash
 * one way or another
 */
# include <openssl/symhacks.h>

# if OPENSSL_API_COMPAT < 0x10100000L
#  include <openssl/opensslv.h>
# endif

#ifdef  __cplusplus
extern "C" {
#endif

# if OPENSSL_API_COMPAT < 0x10100000L
#  define SSLeay                  OpenSSL_version_num
#  define SSLeay_version          OpenSSL_version
#  define SSLEAY_VERSION_NUMBER   OPENSSL_VERSION_NUMBER
#  define SSLEAY_VERSION          OPENSSL_VERSION
#  define SSLEAY_CFLAGS           OPENSSL_CFLAGS
#  define SSLEAY_BUILT_ON         OPENSSL_BUILT_ON
#  define SSLEAY_PLATFORM         OPENSSL_PLATFORM
#  define SSLEAY_DIR              OPENSSL_DIR
# endif /* OPENSSL_API_COMPAT */

/*
 * When changing the CRYPTO_LOCK_* list, be sure to maintin the text lock
 * names in cryptlib.c
 */

# define CRYPTO_LOCK_ERR                 1
# define CRYPTO_LOCK_EX_DATA             2
# define CRYPTO_LOCK_X509                3
# define CRYPTO_LOCK_X509_INFO           4
# define CRYPTO_LOCK_X509_PKEY           5
# define CRYPTO_LOCK_X509_CRL            6
# define CRYPTO_LOCK_X509_REQ            7
# define CRYPTO_LOCK_DSA                 8
# define CRYPTO_LOCK_RSA                 9
# define CRYPTO_LOCK_EVP_PKEY            10
# define CRYPTO_LOCK_X509_STORE          11
# define CRYPTO_LOCK_SSL_CTX             12
# define CRYPTO_LOCK_SSL_CERT            13
# define CRYPTO_LOCK_SSL_SESSION         14
# define CRYPTO_LOCK_SSL_SESS_CERT       15
# define CRYPTO_LOCK_SSL                 16
# define CRYPTO_LOCK_SSL_METHOD          17
# define CRYPTO_LOCK_RAND                18
# define CRYPTO_LOCK_RAND2               19
# define CRYPTO_LOCK_MALLOC              20
# define CRYPTO_LOCK_BIO                 21
# define CRYPTO_LOCK_GETHOSTBYNAME       22
# define CRYPTO_LOCK_GETSERVBYNAME       23
# define CRYPTO_LOCK_READDIR             24
# define CRYPTO_LOCK_RSA_BLINDING        25
# define CRYPTO_LOCK_DH                  26
# define CRYPTO_LOCK_MALLOC2             27
# define CRYPTO_LOCK_DSO                 28
# define CRYPTO_LOCK_DYNLOCK             29
# define CRYPTO_LOCK_ENGINE              30
# define CRYPTO_LOCK_UI                  31
# define CRYPTO_LOCK_ECDSA               32
# define CRYPTO_LOCK_EC                  33
# define CRYPTO_LOCK_ECDH                34
# define CRYPTO_LOCK_BN                  35
# define CRYPTO_LOCK_EC_PRE_COMP         36
# define CRYPTO_LOCK_STORE               37
# define CRYPTO_LOCK_COMP                38
# define CRYPTO_LOCK_FIPS                39
# define CRYPTO_LOCK_FIPS2               40
# define CRYPTO_LOCK_INIT                41
# define CRYPTO_NUM_LOCKS                42

# define CRYPTO_LOCK             1
# define CRYPTO_UNLOCK           2
# define CRYPTO_READ             4
# define CRYPTO_WRITE            8

# ifndef OPENSSL_NO_LOCKING
#  ifndef CRYPTO_w_lock
#   define CRYPTO_w_lock(type)     \
        CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)
#   define CRYPTO_w_unlock(type)   \
        CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)
#   define CRYPTO_r_lock(type)     \
        CRYPTO_lock(CRYPTO_LOCK|CRYPTO_READ,type,__FILE__,__LINE__)
#   define CRYPTO_r_unlock(type)   \
        CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_READ,type,__FILE__,__LINE__)
#   define CRYPTO_add(addr,amount,type)    \
        CRYPTO_add_lock(addr,amount,type,__FILE__,__LINE__)
#  endif
# else
#  define CRYPTO_w_lock(a)
#  define CRYPTO_w_unlock(a)
#  define CRYPTO_r_lock(a)
#  define CRYPTO_r_unlock(a)
#  define CRYPTO_add(a,b,c)       ((*(a))+=(b))
# endif

/*
 * Some applications as well as some parts of OpenSSL need to allocate and
 * deallocate locks in a dynamic fashion.  The following typedef makes this
 * possible in a type-safe manner.
 * struct CRYPTO_dynlock_value has to be defined by the application.
 */
typedef struct {
    int references;
    struct CRYPTO_dynlock_value *data;
} CRYPTO_dynlock;

/*
 * The following can be used to detect memory leaks in the library. If
 * used, it turns on malloc checking
 */
# define CRYPTO_MEM_CHECK_OFF     0x0   /* Control only */
# define CRYPTO_MEM_CHECK_ON      0x1   /* Control and mode bit */
# define CRYPTO_MEM_CHECK_ENABLE  0x2   /* Control and mode bit */
# define CRYPTO_MEM_CHECK_DISABLE 0x3   /* Control only */

/* predec of the BIO type */
typedef struct bio_st BIO_dummy;

struct crypto_ex_data_st {
    STACK_OF(void) *sk;
};
DEFINE_STACK_OF(void)

/*
 * Per class, we have a STACK of function pointers.
 */
# define CRYPTO_EX_INDEX_SSL              0
# define CRYPTO_EX_INDEX_SSL_CTX          1
# define CRYPTO_EX_INDEX_SSL_SESSION      2
# define CRYPTO_EX_INDEX_X509             3
# define CRYPTO_EX_INDEX_X509_STORE       4
# define CRYPTO_EX_INDEX_X509_STORE_CTX   5
# define CRYPTO_EX_INDEX_DH               6
# define CRYPTO_EX_INDEX_DSA              7
# define CRYPTO_EX_INDEX_EC_KEY           8
# define CRYPTO_EX_INDEX_RSA              9
# define CRYPTO_EX_INDEX_ENGINE          10
# define CRYPTO_EX_INDEX_UI              11
# define CRYPTO_EX_INDEX_BIO             12
# define CRYPTO_EX_INDEX_STORE           13
# define CRYPTO_EX_INDEX_APP             14
# define CRYPTO_EX_INDEX__COUNT          15

/*
 * This is the default callbacks, but we can have others as well: this is
 * needed in Win32 where the application malloc and the library malloc may
 * not be the same.
 */
#define OPENSSL_malloc_init() \
    CRYPTO_set_mem_functions(CRYPTO_malloc, CRYPTO_realloc, CRYPTO_free)

int CRYPTO_mem_ctrl(int mode);

# ifndef OPENSSL_NO_CRYPTO_MDEBUG
#  define OPENSSL_malloc(num) \
        CRYPTO_malloc(num, __FILE__, __LINE__)
#  define OPENSSL_zalloc(num) \
        CRYPTO_zalloc(num, __FILE__, __LINE__)
#  define OPENSSL_realloc(addr, num) \
        CRYPTO_realloc(addr, num, __FILE__, __LINE__)
#  define OPENSSL_clear_realloc(addr, old_num, num) \
        CRYPTO_clear_realloc(addr, old_num, num, __FILE__, __LINE__)
#  define OPENSSL_clear_free(addr, num) \
        CRYPTO_clear_free(addr, num)
#  define OPENSSL_free(addr) \
        CRYPTO_free(addr)
#  define OPENSSL_memdup(str, s) \
        CRYPTO_memdup((str), s, __FILE__, __LINE__)
#  define OPENSSL_strdup(str) \
        CRYPTO_strdup(str, __FILE__, __LINE__)
#  define OPENSSL_strndup(str, n) \
        CRYPTO_strndup(str, n, __FILE__, __LINE__)
#  define OPENSSL_secure_malloc(num) \
        CRYPTO_secure_malloc(num, __FILE__, __LINE__)
#  define OPENSSL_secure_zalloc(num) \
        CRYPTO_secure_zalloc(num, __FILE__, __LINE__)
#  define OPENSSL_secure_free(addr) \
        CRYPTO_secure_free(addr)
#  define OPENSSL_secure_actual_size(ptr) \
        CRYPTO_secure_actual_size(ptr)
# else
#  define OPENSSL_malloc(num) \
        CRYPTO_malloc(num, NULL, 0)
#  define OPENSSL_zalloc(num) \
        CRYPTO_zalloc(num, NULL, 0)
#  define OPENSSL_realloc(addr, num) \
        CRYPTO_realloc(addr, num, NULL, 0)
#  define OPENSSL_clear_realloc(addr, old_num, num) \
        CRYPTO_clear_realloc(addr, old_num, num, NULL, 0)
#  define OPENSSL_clear_free(addr, num) \
        CRYPTO_clear_free(addr, num)
#  define OPENSSL_free(addr) \
        CRYPTO_free(addr)
#  define OPENSSL_memdup(str, s) \
        CRYPTO_memdup(str, s, NULL, 0)
#  define OPENSSL_strdup(str) \
        CRYPTO_strdup(str, NULL, 0)
#  define OPENSSL_strndup(str, s) \
        CRYPTO_strndup(str, s, NULL, 0)
#  define OPENSSL_secure_malloc(num) \
        CRYPTO_secure_malloc(num, NULL, 0)
#  define OPENSSL_secure_zalloc(num) \
        CRYPTO_secure_zalloc(num, NULL, 0)
#  define OPENSSL_secure_free(addr) \
        CRYPTO_secure_free(addr)
#  define OPENSSL_secure_actual_size(ptr) \
        CRYPTO_secure_actual_size(ptr)

# endif

size_t OPENSSL_strlcpy(char *dst, const char *src, size_t siz);
size_t OPENSSL_strlcat(char *dst, const char *src, size_t siz);
size_t OPENSSL_strnlen(const char *str, size_t maxlen);

# define OPENSSL_MALLOC_MAX_NELEMS(type)  (((1U<<(sizeof(int)*8-1))-1)/sizeof(type))

unsigned long OpenSSL_version_num(void);
const char *OpenSSL_version(int type);
# define OPENSSL_VERSION          0
# define OPENSSL_CFLAGS           1
# define OPENSSL_BUILT_ON         2
# define OPENSSL_PLATFORM         3
# define OPENSSL_DIR              4
# define OPENSSL_ENGINES_DIR      5

int OPENSSL_issetugid(void);

typedef void CRYPTO_EX_new (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
                           int idx, long argl, void *argp);
typedef void CRYPTO_EX_free (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
                             int idx, long argl, void *argp);
typedef int CRYPTO_EX_dup (CRYPTO_EX_DATA *to, CRYPTO_EX_DATA *from,
                           void *srcp, int idx, long argl, void *argp);
__owur int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
                            CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
                            CRYPTO_EX_free *free_func);
/* No longer use an index. */
int CRYPTO_free_ex_index(int class_index, int idx);

/*
 * Initialise/duplicate/free CRYPTO_EX_DATA variables corresponding to a
 * given class (invokes whatever per-class callbacks are applicable)
 */
int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
                       CRYPTO_EX_DATA *from);

void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);

/*
 * Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular
 * index (relative to the class type involved)
 */
int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx);
/*
 * This function cleans up all "ex_data" state. It mustn't be called under
 * potential race-conditions.
 */
void CRYPTO_cleanup_all_ex_data(void);

int CRYPTO_get_new_lockid(char *name);

int CRYPTO_num_locks(void);     /* return CRYPTO_NUM_LOCKS (shared libs!) */
void CRYPTO_lock(int mode, int type, const char *file, int line);
void CRYPTO_set_locking_callback(void (*func) (int mode, int type,
                                               const char *file, int line));
void (*CRYPTO_get_locking_callback(void)) (int mode, int type,
                                           const char *file, int line);
void CRYPTO_set_add_lock_callback(int (*func)
                                   (int *num, int mount, int type,
                                    const char *file, int line));
int (*CRYPTO_get_add_lock_callback(void)) (int *num, int mount, int type,
                                           const char *file, int line);

/* Don't use this structure directly. */
typedef struct crypto_threadid_st {
    void *ptr;
    unsigned long val;
} CRYPTO_THREADID;
/* Only use CRYPTO_THREADID_set_[numeric|pointer]() within callbacks */
void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val);
void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr);
int CRYPTO_THREADID_set_callback(void (*threadid_func) (CRYPTO_THREADID *));
void (*CRYPTO_THREADID_get_callback(void)) (CRYPTO_THREADID *);
void CRYPTO_THREADID_current(CRYPTO_THREADID *id);
int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b);
void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src);
unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id);
DEPRECATEDIN_1_0_0(void CRYPTO_set_id_callback(unsigned long (*func) (void)))
DEPRECATEDIN_1_0_0(unsigned long (*CRYPTO_get_id_callback(void)) (void))
DEPRECATEDIN_1_0_0(unsigned long CRYPTO_thread_id(void))

const char *CRYPTO_get_lock_name(int type);
int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
                    int line);

int CRYPTO_get_new_dynlockid(void);
void CRYPTO_destroy_dynlockid(int i);
struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i);
void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value
                                        *(*dyn_create_function) (const char
                                                                 *file,
                                                                 int line));
void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)
                                       (int mode,
                                        struct CRYPTO_dynlock_value *l,
                                        const char *file, int line));
void CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)
                                          (struct CRYPTO_dynlock_value *l,
                                           const char *file, int line));
struct CRYPTO_dynlock_value
*(*CRYPTO_get_dynlock_create_callback(void)) (const char *file, int line);
void (*CRYPTO_get_dynlock_lock_callback(void)) (int mode,
                                                struct CRYPTO_dynlock_value
                                                *l, const char *file,
                                                int line);
void (*CRYPTO_get_dynlock_destroy_callback(void)) (struct CRYPTO_dynlock_value
                                                   *l, const char *file,
                                                   int line);

int CRYPTO_set_mem_functions(
        void *(*m) (size_t, const char *, int),
        void *(*r) (void *, size_t, const char *, int),
        void (*f) (void *));
int CRYPTO_set_mem_debug(int flag);
void CRYPTO_get_mem_functions(
        void *(**m) (size_t, const char *, int),
        void *(**r) (void *, size_t, const char *, int),
        void (**f) (void *));

void *CRYPTO_malloc(size_t num, const char *file, int line);
void *CRYPTO_zalloc(size_t num, const char *file, int line);
void *CRYPTO_memdup(const void *str, size_t siz, const char *file, int line);
char *CRYPTO_strdup(const char *str, const char *file, int line);
char *CRYPTO_strndup(const char *str, size_t s, const char *file, int line);
void CRYPTO_free(void *ptr);
void CRYPTO_clear_free(void *ptr, size_t num);
void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line);
void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
                           const char *file, int line);

int CRYPTO_secure_malloc_init(size_t sz, int minsize);
void CRYPTO_secure_malloc_done(void);
void *CRYPTO_secure_malloc(size_t num, const char *file, int line);
void *CRYPTO_secure_zalloc(size_t num, const char *file, int line);
void CRYPTO_secure_free(void *ptr);
int CRYPTO_secure_allocated(const void *ptr);
int CRYPTO_secure_malloc_initialized(void);
size_t CRYPTO_secure_actual_size(void *ptr);
size_t CRYPTO_secure_used(void);

void OPENSSL_cleanse(void *ptr, size_t len);

# ifndef OPENSSL_NO_CRYPTO_MDEBUG
#  define OPENSSL_mem_debug_push(info) \
        CRYPTO_mem_debug_push(info, __FILE__, __LINE__)
#  define OPENSSL_mem_debug_pop() \
        CRYPTO_mem_debug_pop()
int CRYPTO_mem_debug_push(const char *info, const char *file, int line);
int CRYPTO_mem_debug_pop(void);

/*-
 * Debugging functions (enabled by CRYPTO_set_mem_debug(1))
 * The flag argument has the following significance:
 *   0:   called before the actual memory allocation has taken place
 *   1:   called after the actual memory allocation has taken place
 */
void CRYPTO_mem_debug_malloc(void *addr, size_t num, int flag,
        const char *file, int line);
void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, int flag,
        const char *file, int line);
void CRYPTO_mem_debug_free(void *addr, int flag);

#  ifndef OPENSSL_NO_STDIO
int CRYPTO_mem_leaks_fp(FILE *);
#  endif
int CRYPTO_mem_leaks(struct bio_st *bio);
# endif

/* die if we have to */
void OpenSSLDie(const char *file, int line, const char *assertion);
# define OPENSSL_assert(e)       (void)((e) ? 0 : (OpenSSLDie(__FILE__, __LINE__, #e),1))

unsigned int *OPENSSL_ia32cap_loc(void);
# define OPENSSL_ia32cap ((OPENSSL_ia32cap_loc())[0])
int OPENSSL_isservice(void);

int FIPS_mode(void);
int FIPS_mode_set(int r);

void OPENSSL_init(void);

struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result);
int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
int OPENSSL_gmtime_diff(int *pday, int *psec,
                        const struct tm *from, const struct tm *to);

/*
 * CRYPTO_memcmp returns zero iff the |len| bytes at |a| and |b| are equal.
 * It takes an amount of time dependent on |len|, but independent of the
 * contents of |a| and |b|. Unlike memcmp, it cannot be used to put elements
 * into a defined order as the return value when a != b is undefined, other
 * than to be non-zero.
 */
int CRYPTO_memcmp(const volatile void * volatile in_a,
                  const volatile void * volatile in_b,
                  size_t len);

/* Standard initialisation options */
# define OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS 0x000001
# define OPENSSL_INIT_LOAD_CRYPTO_STRINGS    0x000002
# define OPENSSL_INIT_ADD_ALL_CIPHERS        0x000004
# define OPENSSL_INIT_ADD_ALL_DIGESTS        0x000008
# define OPENSSL_INIT_NO_ADD_ALL_CIPHERS     0x000010
# define OPENSSL_INIT_NO_ADD_ALL_DIGESTS     0x000020
# define OPENSSL_INIT_LOAD_CONFIG            0x000040
# define OPENSSL_INIT_NO_LOAD_CONFIG         0x000080
# define OPENSSL_INIT_ASYNC                  0x000100
# define OPENSSL_INIT_ENGINE_RDRAND          0x000200
# define OPENSSL_INIT_ENGINE_DYNAMIC         0x000400
# define OPENSSL_INIT_ENGINE_OPENSSL         0x000800
# define OPENSSL_INIT_ENGINE_CRYPTODEV       0x001000
# define OPENSSL_INIT_ENGINE_CAPI            0x002000
# define OPENSSL_INIT_ENGINE_PADLOCK         0x004000
# define OPENSSL_INIT_ENGINE_DASYNC          0x008000
/* OPENSSL_INIT flag 0x010000 reserved for internal use */
/* Max OPENSSL_INIT flag value is 0x80000000 */

/* openssl and dasync not counted as builtin */
# define OPENSSL_INIT_ENGINE_ALL_BUILTIN \
    (OPENSSL_INIT_ENGINE_RDRAND | OPENSSL_INIT_ENGINE_DYNAMIC \
    | OPENSSL_INIT_ENGINE_CRYPTODEV | OPENSSL_INIT_ENGINE_CAPI | \
    OPENSSL_INIT_ENGINE_PADLOCK)


/* Library initialisation functions */
void OPENSSL_cleanup(void);
int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
int OPENSSL_atexit(void (*handler)(void));
void OPENSSL_thread_stop(void);

/* Low-level control of initialization */
OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
void OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
                                      const char *config_file);
void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);

/* BEGIN ERROR CODES */
/*
 * The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_CRYPTO_strings(void);

/* Error codes for the CRYPTO functions. */

/* Function codes. */
# define CRYPTO_F_CRYPTO_DUP_EX_DATA                      110
# define CRYPTO_F_CRYPTO_FREE_EX_DATA                     111
# define CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX                 100
# define CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID                103
# define CRYPTO_F_CRYPTO_GET_NEW_LOCKID                   101
# define CRYPTO_F_CRYPTO_MEMDUP                           115
# define CRYPTO_F_CRYPTO_NEW_EX_DATA                      112
# define CRYPTO_F_CRYPTO_SET_EX_DATA                      102
# define CRYPTO_F_DEF_ADD_INDEX                           104
# define CRYPTO_F_DEF_GET_CLASS                           105
# define CRYPTO_F_FIPS_MODE_SET                           109
# define CRYPTO_F_GET_AND_LOCK                            113
# define CRYPTO_F_INT_DUP_EX_DATA                         106
# define CRYPTO_F_INT_FREE_EX_DATA                        107
# define CRYPTO_F_INT_NEW_EX_DATA                         108
# define CRYPTO_F_OPENSSL_INIT_CRYPTO                     116
# define CRYPTO_F_OPENSSL_MEMDUP                          114

/* Reason codes. */
# define CRYPTO_R_FIPS_MODE_NOT_SUPPORTED                 101
# define CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK              100

#ifdef  __cplusplus
}
#endif
#endif