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/*
* Copyright (C) 2007, 2012 Stefan Walter
* Copyright (C) 2012 Red Hat Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * 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.
* * The names of contributors to this software may not be
* used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT OWNER 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.
*
* Author: Stef Walter <stef@thewalter.net>
*/
#ifndef P11_BUFFER_H_
#define P11_BUFFER_H_
#include "compat.h"
enum {
P11_BUFFER_FAILED = 1 << 0,
P11_BUFFER_NULL = 1 << 1,
};
typedef struct {
void *data;
size_t len;
int flags;
size_t size;
void * (* frealloc) (void *, size_t);
void (* ffree) (void *);
} p11_buffer;
bool p11_buffer_init (p11_buffer *buffer,
size_t size);
bool p11_buffer_init_null (p11_buffer *buffer,
size_t size);
void p11_buffer_init_full (p11_buffer *buffer,
void *data,
size_t len,
int flags,
void * (* frealloc) (void *, size_t),
void (* ffree) (void *));
void p11_buffer_uninit (p11_buffer *buffer);
void * p11_buffer_steal (p11_buffer *buffer,
size_t *length);
bool p11_buffer_reset (p11_buffer *buffer,
size_t size);
void * p11_buffer_append (p11_buffer *buffer,
size_t length);
void p11_buffer_add (p11_buffer *buffer,
const void *data,
ssize_t length);
#define p11_buffer_fail(buf) \
((buf)->flags |= P11_BUFFER_FAILED)
#define p11_buffer_ok(buf) \
(((buf)->flags & P11_BUFFER_FAILED) ? false : true)
#define p11_buffer_failed(buf) \
(((buf)->flags & P11_BUFFER_FAILED) ? true : false)
#endif /* BUFFER_H */
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