/* 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 #include #include #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 */