1/* crypto/buffer/buffer.h */
2/* Copyright (C) 1995-1998 Eric Young ([email protected])
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young ([email protected]).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson ([email protected]).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young ([email protected])"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson ([email protected])"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#ifndef HEADER_BUFFER_H
60# define HEADER_BUFFER_H
61
62# include <openssl/ossl_typ.h>
63
64#ifdef __cplusplus
65extern "C" {
66#endif
67
68# include <stddef.h>
69
70# if !defined(NO_SYS_TYPES_H)
71# include <sys/types.h>
72# endif
73
74/* Already declared in ossl_typ.h */
75/* typedef struct buf_mem_st BUF_MEM; */
76
77struct buf_mem_st {
78 size_t length; /* current number of bytes */
79 char *data;
80 size_t max; /* size of buffer */
81};
82
83BUF_MEM *BUF_MEM_new(void);
84void BUF_MEM_free(BUF_MEM *a);
85int BUF_MEM_grow(BUF_MEM *str, size_t len);
86int BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
87size_t BUF_strnlen(const char *str, size_t maxlen);
88char *BUF_strdup(const char *str);
89
90/*
91 * Like strndup, but in addition, explicitly guarantees to never read past the
92 * first |siz| bytes of |str|.
93 */
94char *BUF_strndup(const char *str, size_t siz);
95
96void *BUF_memdup(const void *data, size_t siz);
97void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
98
99/* safe string functions */
100size_t BUF_strlcpy(char *dst, const char *src, size_t siz);
101size_t BUF_strlcat(char *dst, const char *src, size_t siz);
102
103/* BEGIN ERROR CODES */
104/*
105 * The following lines are auto generated by the script mkerr.pl. Any changes
106 * made after this point may be overwritten when the script is next run.
107 */
108void ERR_load_BUF_strings(void);
109
110/* Error codes for the BUF functions. */
111
112/* Function codes. */
113# define BUF_F_BUF_MEMDUP 103
114# define BUF_F_BUF_MEM_GROW 100
115# define BUF_F_BUF_MEM_GROW_CLEAN 105
116# define BUF_F_BUF_MEM_NEW 101
117# define BUF_F_BUF_STRDUP 102
118# define BUF_F_BUF_STRNDUP 104
119
120/* Reason codes. */
121
122#ifdef __cplusplus
123}
124#endif
125#endif
126