OpenSSL.vip

Cryptography and SSL/TLS Toolkit

NAME

BUF_MEM_new, BUF_MEM_new_ex, BUF_MEM_free, BUF_MEM_grow, BUF_MEM_grow_clean, BUF_reverse - simple character array structure

SYNOPSIS

 #include <openssl/buffer.h>
 
 BUF_MEM *BUF_MEM_new(void);
 
 BUF_MEM *BUF_MEM_new_ex(unsigned long flags);
 
 void BUF_MEM_free(BUF_MEM *a);
 
 int BUF_MEM_grow(BUF_MEM *str, int len);
 size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
 
 void BUF_reverse(unsigned char *out, const unsigned char *in, size_t size);

DESCRIPTION

The buffer library handles simple character arrays. Buffers are used for various purposes in the library, most notably memory BIOs.

BUF_MEM_new() allocates a new buffer of zero size.

BUF_MEM_new_ex() allocates a buffer with the specified flags. The flag BUF_MEM_FLAG_SECURE specifies that the data pointer should be allocated on the secure heap; see RETURN VALUES

BUF_MEM_new() returns the buffer or NULL on error.

BUF_MEM_free() has no return value.

BUF_MEM_grow() and BUF_MEM_grow_clean() return zero on error or the new size (i.e., len).

SEE ALSO

CRYPTO_secure_malloc(3).

HISTORY

The BUF_MEM_new_ex() function was added in OpenSSL 1.1.0.

COPYRIGHT

Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.

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