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/* $OpenBSD: buffer.h,v 1.16 2022/07/12 14:42:48 kn Exp $ */
/* 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 HEADER_BUFFER_H
#define HEADER_BUFFER_H
#if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__OpenBSD__)
#define __bounded__(x, y, z)
#endif
#include <openssl/ossl_typ.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
#include <sys/types.h>
/* Already declared in ossl_typ.h */
/* typedef struct buf_mem_st BUF_MEM; */
struct buf_mem_st {
size_t length; /* current number of bytes */
char *data;
size_t max; /* size of buffer */
};
BUF_MEM *BUF_MEM_new(void);
void BUF_MEM_free(BUF_MEM *a);
int BUF_MEM_grow(BUF_MEM *str, size_t len);
int BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
#ifndef LIBRESSL_INTERNAL
char * BUF_strdup(const char *str);
char * BUF_strndup(const char *str, size_t siz);
void * BUF_memdup(const void *data, size_t siz);
void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
/* safe string functions */
size_t BUF_strlcpy(char *dst, const char *src, size_t siz)
__attribute__ ((__bounded__(__string__,1,3)));
size_t BUF_strlcat(char *dst, const char *src, size_t siz)
__attribute__ ((__bounded__(__string__,1,3)));
#endif
void ERR_load_BUF_strings(void);
/* Error codes for the BUF functions. */
/* Function codes. */
#define BUF_F_BUF_MEMDUP 103
#define BUF_F_BUF_MEM_GROW 100
#define BUF_F_BUF_MEM_GROW_CLEAN 105
#define BUF_F_BUF_MEM_NEW 101
#define BUF_F_BUF_STRDUP 102
#define BUF_F_BUF_STRNDUP 104
/* Reason codes. */
#ifdef __cplusplus
}
#endif
#endif
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