1/*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef OPENSSL_BUFFER_H
11# define OPENSSL_BUFFER_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16# define HEADER_BUFFER_H
17# endif
18
19# include <openssl/types.h>
20# ifndef OPENSSL_CRYPTO_H
21# include <openssl/crypto.h>
22# endif
23# include <openssl/buffererr.h>
24
25
26#ifdef __cplusplus
27extern "C" {
28#endif
29
30# include <stddef.h>
31# include <sys/types.h>
32
33# ifndef OPENSSL_NO_DEPRECATED_3_0
34# define BUF_strdup(s) OPENSSL_strdup(s)
35# define BUF_strndup(s, size) OPENSSL_strndup(s, size)
36# define BUF_memdup(data, size) OPENSSL_memdup(data, size)
37# define BUF_strlcpy(dst, src, size) OPENSSL_strlcpy(dst, src, size)
38# define BUF_strlcat(dst, src, size) OPENSSL_strlcat(dst, src, size)
39# define BUF_strnlen(str, maxlen) OPENSSL_strnlen(str, maxlen)
40# endif
41
42struct buf_mem_st {
43 size_t length; /* current number of bytes */
44 char *data;
45 size_t max; /* size of buffer */
46 unsigned long flags;
47};
48
49# define BUF_MEM_FLAG_SECURE 0x01
50
51BUF_MEM *BUF_MEM_new(void);
52BUF_MEM *BUF_MEM_new_ex(unsigned long flags);
53void BUF_MEM_free(BUF_MEM *a);
54size_t BUF_MEM_grow(BUF_MEM *str, size_t len);
55size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
56void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
57
58
59# ifdef __cplusplus
60}
61# endif
62#endif
63

source code of include/openssl/buffer.h