153 lines
5.0 KiB
C
153 lines
5.0 KiB
C
/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD: head/lib/libarchive/archive_private.h 201098 2009-12-28 02:58:14Z kientzle $
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*/
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#ifndef __LIBARCHIVE_BUILD
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#error This header is only to be used internally to libarchive.
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#endif
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#ifndef ARCHIVE_PRIVATE_H_INCLUDED
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#define ARCHIVE_PRIVATE_H_INCLUDED
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#if HAVE_ICONV_H
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#include <iconv.h>
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#endif
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#include "archive.h"
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#include "archive_string.h"
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#if defined(__GNUC__) && (__GNUC__ > 2 || \
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(__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
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#define __LA_DEAD __attribute__((__noreturn__))
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#else
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#define __LA_DEAD
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#endif
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#define ARCHIVE_WRITE_MAGIC (0xb0c5c0deU)
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#define ARCHIVE_READ_MAGIC (0xdeb0c5U)
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#define ARCHIVE_WRITE_DISK_MAGIC (0xc001b0c5U)
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#define ARCHIVE_READ_DISK_MAGIC (0xbadb0c5U)
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#define ARCHIVE_MATCH_MAGIC (0xcad11c9U)
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#define ARCHIVE_STATE_NEW 1U
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#define ARCHIVE_STATE_HEADER 2U
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#define ARCHIVE_STATE_DATA 4U
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#define ARCHIVE_STATE_EOF 0x10U
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#define ARCHIVE_STATE_CLOSED 0x20U
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#define ARCHIVE_STATE_FATAL 0x8000U
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#define ARCHIVE_STATE_ANY (0xFFFFU & ~ARCHIVE_STATE_FATAL)
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struct archive_vtable {
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int (*archive_close)(struct archive *);
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int (*archive_free)(struct archive *);
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int (*archive_write_header)(struct archive *,
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struct archive_entry *);
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int (*archive_write_finish_entry)(struct archive *);
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ssize_t (*archive_write_data)(struct archive *,
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const void *, size_t);
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ssize_t (*archive_write_data_block)(struct archive *,
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const void *, size_t, int64_t);
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int (*archive_read_next_header)(struct archive *,
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struct archive_entry **);
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int (*archive_read_next_header2)(struct archive *,
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struct archive_entry *);
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int (*archive_read_data_block)(struct archive *,
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const void **, size_t *, int64_t *);
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int (*archive_filter_count)(struct archive *);
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int64_t (*archive_filter_bytes)(struct archive *, int);
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int (*archive_filter_code)(struct archive *, int);
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const char * (*archive_filter_name)(struct archive *, int);
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};
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struct archive_string_conv;
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struct archive {
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/*
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* The magic/state values are used to sanity-check the
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* client's usage. If an API function is called at a
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* ridiculous time, or the client passes us an invalid
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* pointer, these values allow me to catch that.
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*/
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unsigned int magic;
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unsigned int state;
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/*
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* Some public API functions depend on the "real" type of the
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* archive object.
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*/
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struct archive_vtable *vtable;
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int archive_format;
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const char *archive_format_name;
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int compression_code; /* Currently active compression. */
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const char *compression_name;
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/* Number of file entries processed. */
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int file_count;
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int archive_error_number;
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const char *error;
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struct archive_string error_string;
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char *current_code;
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unsigned current_codepage; /* Current ACP(ANSI CodePage). */
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unsigned current_oemcp; /* Current OEMCP(OEM CodePage). */
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struct archive_string_conv *sconv;
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};
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/* Check magic value and state; return(ARCHIVE_FATAL) if it isn't valid. */
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int __archive_check_magic(struct archive *, unsigned int magic,
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unsigned int state, const char *func);
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#define archive_check_magic(a, expected_magic, allowed_states, function_name) \
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do { \
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int magic_test = __archive_check_magic((a), (expected_magic), \
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(allowed_states), (function_name)); \
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if (magic_test == ARCHIVE_FATAL) \
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return ARCHIVE_FATAL; \
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} while (0)
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void __archive_errx(int retvalue, const char *msg) __LA_DEAD;
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void __archive_ensure_cloexec_flag(int fd);
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int __archive_mktemp(const char *tmpdir);
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int __archive_clean(struct archive *);
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#define err_combine(a,b) ((a) < (b) ? (a) : (b))
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#if defined(__BORLANDC__) || (defined(_MSC_VER) && _MSC_VER <= 1300)
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# define ARCHIVE_LITERAL_LL(x) x##i64
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# define ARCHIVE_LITERAL_ULL(x) x##ui64
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#else
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# define ARCHIVE_LITERAL_LL(x) x##ll
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# define ARCHIVE_LITERAL_ULL(x) x##ull
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#endif
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#endif
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