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/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* 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 above 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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.
*
* $FreeBSD$
*/
#ifndef ARCHIVE_PRIVATE_H_INCLUDED
#define ARCHIVE_PRIVATE_H_INCLUDED
#include "archive.h"
#include "archive_string.h"
#define ARCHIVE_WRITE_MAGIC (0xb0c5c0deU)
#define ARCHIVE_READ_MAGIC (0xdeb0c5U)
#define ARCHIVE_WRITE_DISK_MAGIC (0xc001b0c5U)
#define ARCHIVE_STATE_ANY 0xFFFFU
#define ARCHIVE_STATE_NEW 1U
#define ARCHIVE_STATE_HEADER 2U
#define ARCHIVE_STATE_DATA 4U
#define ARCHIVE_STATE_DATA_END 8U
#define ARCHIVE_STATE_EOF 0x10U
#define ARCHIVE_STATE_CLOSED 0x20U
#define ARCHIVE_STATE_FATAL 0x8000U
struct archive_vtable {
int (*archive_write_close)(struct archive *);
int (*archive_write_finish)(struct archive *);
int (*archive_write_header)(struct archive *,
struct archive_entry *);
int (*archive_write_finish_entry)(struct archive *);
ssize_t (*archive_write_data)(struct archive *,
const void *, size_t);
ssize_t (*archive_write_data_block)(struct archive *,
const void *, size_t, off_t);
};
struct archive {
/*
* The magic/state values are used to sanity-check the
* client's usage. If an API function is called at a
* ridiculous time, or the client passes us an invalid
* pointer, these values allow me to catch that.
*/
unsigned magic;
unsigned state;
/*
* Some public API functions depend on the "real" type of the
* archive object.
*/
struct archive_vtable *vtable;
int archive_format;
const char *archive_format_name;
int compression_code; /* Currently active compression. */
const char *compression_name;
/* Position in UNCOMPRESSED data stream. */
off_t file_position;
/* Position in COMPRESSED data stream. */
off_t raw_position;
int archive_error_number;
const char *error;
struct archive_string error_string;
};
/* Check magic value and state; exit if it isn't valid. */
void __archive_check_magic(struct archive *, unsigned magic,
unsigned state, const char *func);
void __archive_errx(int retvalue, const char *msg);
#define err_combine(a,b) ((a) < (b) ? (a) : (b))
#endif
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