/* 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.] */
#ifndef OPENSSL_HEADER_MEM_H
#define OPENSSL_HEADER_MEM_H
#include <openssl/base.h>
#include <stdlib.h>
#include <stdarg.h>
#if defined(__cplusplus)
extern "C" {
#endif
/* Memory and string functions, see also buf.h.
*
* OpenSSL has, historically, had a complex set of malloc debugging options.
* However, that was written in a time before Valgrind and ASAN. Since we now
* have those tools, the OpenSSL allocation functions are simply macros around
* the standard memory functions. */
#define OPENSSL_malloc malloc
#define OPENSSL_realloc realloc
#define OPENSSL_free free
/* OPENSSL_realloc_clean acts like |realloc|, but clears the previous memory
* buffer. Because this is implemented as a wrapper around |malloc|, it needs
* to be given the size of the buffer pointed to by |ptr|. */
void *OPENSSL_realloc_clean(void *ptr, size_t old_size, size_t new_size);
/* OPENSSL_cleanse zeros out |len| bytes of memory at |ptr|. This is similar to
* |memset_s| from C11. */
OPENSSL_EXPORT void OPENSSL_cleanse(void *ptr, size_t len);
/* 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. */
OPENSSL_EXPORT int CRYPTO_memcmp(const void *a, const void *b, size_t len);
/* OPENSSL_hash32 implements the 32 bit, FNV-1a hash. */
OPENSSL_EXPORT uint32_t OPENSSL_hash32(const void *ptr, size_t len);
/* OPENSSL_strdup has the same behaviour as strdup(3). */
OPENSSL_EXPORT char *OPENSSL_strdup(const char *s);
/* OPENSSL_strnlen has the same behaviour as strnlen(3). */
OPENSSL_EXPORT size_t OPENSSL_strnlen(const char *s, size_t len);
/* OPENSSL_strcasecmp has the same behaviour as strcasecmp(3). */
OPENSSL_EXPORT int OPENSSL_strcasecmp(const char *a, const char *b);
/* OPENSSL_strncasecmp has the same behaviour as strncasecmp(3). */
OPENSSL_EXPORT int OPENSSL_strncasecmp(const char *a, const char *b, size_t n);
/* DECIMAL_SIZE returns an upper bound for the length of the decimal
* representation of the given type. */
#define DECIMAL_SIZE(type) ((sizeof(type)*8+2)/3+1)
/* Printf functions.
*
* These functions are either OpenSSL wrappers for standard functions (i.e.
* |BIO_snprintf| and |BIO_vsnprintf|) which don't exist in C89, or are
* versions of printf functions that output to a BIO rather than a FILE. */
#ifdef __GNUC__
#define __bio_h__attr__ __attribute__
#else
#define __bio_h__attr__(x)
#endif
OPENSSL_EXPORT int BIO_snprintf(char *buf, size_t n, const char *format, ...)
__bio_h__attr__((__format__(__printf__, 3, 4)));
OPENSSL_EXPORT int BIO_vsnprintf(char *buf, size_t n, const char *format,
va_list args)
__bio_h__attr__((__format__(__printf__, 3, 0)));
#undef __bio_h__attr__
#if defined(__cplusplus)
} /* extern C */
#endif
#endif /* OPENSSL_HEADER_MEM_H */