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/*-
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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: src/lib/libarchive/archive.h.in,v 1.50 2008/05/26 17:00:22 kientzle Exp $
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 */
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#ifndef ARCHIVE_H_INCLUDED
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#define        ARCHIVE_H_INCLUDED
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/*
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 * Note: archive.h is for use outside of libarchive; the configuration
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 * headers (config.h, archive_platform.h, etc.) are purely internal.
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 * Do NOT use HAVE_XXX configuration macros to control the behavior of
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 * this header!  If you must conditionalize, use predefined compiler and/or
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 * platform macros.
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 */
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#if defined(__BORLANDC__) && __BORLANDC__ >= 0x560
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# define __LA_STDINT_H <stdint.h>
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#elif !defined(__WATCOMC__) && !defined(_MSC_VER) && !defined(__INTERIX) && !defined(__BORLANDC__)
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# define __LA_STDINT_H <inttypes.h>
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#endif
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#include <sys/stat.h>
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#include <sys/types.h>  /* Linux requires this for off_t */
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#ifdef __LA_STDINT_H
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# include __LA_STDINT_H /* int64_t, etc. */
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#endif
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#include <stdio.h> /* For FILE * */
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/* Get appropriate definitions of standard POSIX-style types. */
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/* These should match the types used in 'struct stat' */
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#define        __LA_INT64_T        __int64
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# if defined(_SSIZE_T_DEFINED)
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#  define        __LA_SSIZE_T        ssize_t
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# elif defined(_WIN64)
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#  define        __LA_SSIZE_T        __int64
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# else
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#  define        __LA_SSIZE_T        long
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# endif
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# if defined(__BORLANDC__)
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#  define        __LA_UID_T        uid_t
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#  define        __LA_GID_T        gid_t
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# else
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#  define        __LA_UID_T        short
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#  define        __LA_GID_T        short
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# endif
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#else
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#include <unistd.h>  /* ssize_t, uid_t, and gid_t */
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#define        __LA_INT64_T        int64_t
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#define        __LA_SSIZE_T        ssize_t
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#define        __LA_UID_T        uid_t
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#define        __LA_GID_T        gid_t
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#endif
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/*
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 * On Windows, define LIBARCHIVE_STATIC if you're building or using a
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 * .lib.  The default here assumes you're building a DLL.  Only
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 * libarchive source should ever define __LIBARCHIVE_BUILD.
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 */
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#if ((defined __WIN32__) || (defined _WIN32) || defined(__CYGWIN__)) && (!defined LIBARCHIVE_STATIC)
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# ifdef __LIBARCHIVE_BUILD
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#  ifdef __GNUC__
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#   define __LA_DECL        __attribute__((dllexport)) extern
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#  else
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#   define __LA_DECL        __declspec(dllexport)
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#  endif
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# else
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#  ifdef __GNUC__
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#   define __LA_DECL        __attribute__((dllimport)) extern
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#  else
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#   define __LA_DECL        __declspec(dllimport)
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#  endif
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# endif
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#else
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/* Static libraries or non-Windows needs no special declaration. */
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# define __LA_DECL
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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 * The version number is provided as both a macro and a function.
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 * The macro identifies the installed header; the function identifies
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 * the library version (which may not be the same if you're using a
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 * dynamically-linked version of the library).  Of course, if the
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 * header and library are very different, you should expect some
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 * strangeness.  Don't do that.
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 */
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/*
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 * The version number is expressed as a single integer that makes it
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 * easy to compare versions at build time: for version a.b.c, the
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 * version number is printf("%d%03d%03d",a,b,c).  For example, if you
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 * know your application requires version 2.12.108 or later, you can
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 * assert that ARCHIVE_VERSION >= 2012108.
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 *
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 * This single-number format was introduced with libarchive 1.9.0 in
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 * the libarchive 1.x family and libarchive 2.2.4 in the libarchive
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 * 2.x family.  The following may be useful if you really want to do
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 * feature detection for earlier libarchive versions (which defined
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 * ARCHIVE_API_VERSION and ARCHIVE_API_FEATURE instead):
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 *
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 * #ifndef ARCHIVE_VERSION_NUMBER
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 * #define ARCHIVE_VERSION_NUMBER        \
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 *             (ARCHIVE_API_VERSION * 1000000 + ARCHIVE_API_FEATURE * 1000)
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 * #endif
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 */
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#define        ARCHIVE_VERSION_NUMBER 2008004
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__LA_DECL int                archive_version_number(void);
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/*
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 * Textual name/version of the library, useful for version displays.
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 */
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#define        ARCHIVE_VERSION_STRING "libarchive 2.8.4"
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__LA_DECL const char *        archive_version_string(void);
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#if ARCHIVE_VERSION_NUMBER < 3000000
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/*
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 * Deprecated; these are older names that will be removed in favor of
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 * the simpler definitions above.
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 */
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#define        ARCHIVE_VERSION_STAMP        ARCHIVE_VERSION_NUMBER
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__LA_DECL int                archive_version_stamp(void);
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#define        ARCHIVE_LIBRARY_VERSION        ARCHIVE_VERSION_STRING
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__LA_DECL const char *        archive_version(void);
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#define        ARCHIVE_API_VERSION        (ARCHIVE_VERSION_NUMBER / 1000000)
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__LA_DECL int                archive_api_version(void);
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#define        ARCHIVE_API_FEATURE        ((ARCHIVE_VERSION_NUMBER / 1000) % 1000)
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__LA_DECL int                archive_api_feature(void);
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#endif
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#if ARCHIVE_VERSION_NUMBER < 3000000
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/* This should never have been here in the first place. */
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/* Legacy of old tar assumptions, will be removed in libarchive 3.0. */
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#define        ARCHIVE_BYTES_PER_RECORD          512
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#define        ARCHIVE_DEFAULT_BYTES_PER_BLOCK        10240
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#endif
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/* Declare our basic types. */
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struct archive;
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struct archive_entry;
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/*
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 * Error codes: Use archive_errno() and archive_error_string()
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 * to retrieve details.  Unless specified otherwise, all functions
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 * that return 'int' use these codes.
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 */
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#define        ARCHIVE_EOF          1        /* Found end of archive. */
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#define        ARCHIVE_OK          0        /* Operation was successful. */
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#define        ARCHIVE_RETRY        (-10)        /* Retry might succeed. */
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#define        ARCHIVE_WARN        (-20)        /* Partial success. */
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/* For example, if write_header "fails", then you can't push data. */
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#define        ARCHIVE_FAILED        (-25)        /* Current operation cannot complete. */
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/* But if write_header is "fatal," then this archive is dead and useless. */
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#define        ARCHIVE_FATAL        (-30)        /* No more operations are possible. */
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/*
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 * As far as possible, archive_errno returns standard platform errno codes.
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 * Of course, the details vary by platform, so the actual definitions
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 * here are stored in "archive_platform.h".  The symbols are listed here
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 * for reference; as a rule, clients should not need to know the exact
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 * platform-dependent error code.
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 */
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/* Unrecognized or invalid file format. */
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/* #define        ARCHIVE_ERRNO_FILE_FORMAT */
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/* Illegal usage of the library. */
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/* #define        ARCHIVE_ERRNO_PROGRAMMER_ERROR */
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/* Unknown or unclassified error. */
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/* #define        ARCHIVE_ERRNO_MISC */
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/*
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 * Callbacks are invoked to automatically read/skip/write/open/close the
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 * archive. You can provide your own for complex tasks (like breaking
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 * archives across multiple tapes) or use standard ones built into the
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 * library.
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 */
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/* Returns pointer and size of next block of data from archive. */
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typedef __LA_SSIZE_T        archive_read_callback(struct archive *,
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                            void *_client_data, const void **_buffer);
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/* Skips at most request bytes from archive and returns the skipped amount */
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#if ARCHIVE_VERSION_NUMBER < 2000000
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/* Libarchive 1.0 used ssize_t for the return, which is only 32 bits
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 * on most 32-bit platforms; not large enough. */
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typedef __LA_SSIZE_T        archive_skip_callback(struct archive *,
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                            void *_client_data, size_t request);
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#elif ARCHIVE_VERSION_NUMBER < 3000000
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/* Libarchive 2.0 used off_t here, but that is a bad idea on Linux and a
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 * few other platforms where off_t varies with build settings. */
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typedef off_t                archive_skip_callback(struct archive *,
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                            void *_client_data, off_t request);
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#else
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/* Libarchive 3.0 uses int64_t here, which is actually guaranteed to be
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 * 64 bits on every platform. */
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typedef __LA_INT64_T        archive_skip_callback(struct archive *,
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                            void *_client_data, __LA_INT64_T request);
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#endif
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/* Returns size actually written, zero on EOF, -1 on error. */
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typedef __LA_SSIZE_T        archive_write_callback(struct archive *,
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                            void *_client_data,
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                            const void *_buffer, size_t _length);
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#if ARCHIVE_VERSION_NUMBER < 3000000
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/* Open callback is actually never needed; remove it in libarchive 3.0. */
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typedef int        archive_open_callback(struct archive *, void *_client_data);
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#endif
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typedef int        archive_close_callback(struct archive *, void *_client_data);
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/*
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 * Codes for archive_compression.
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 */
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#define        ARCHIVE_COMPRESSION_NONE        0
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#define        ARCHIVE_COMPRESSION_GZIP        1
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#define        ARCHIVE_COMPRESSION_BZIP2        2
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#define        ARCHIVE_COMPRESSION_COMPRESS        3
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#define        ARCHIVE_COMPRESSION_PROGRAM        4
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#define        ARCHIVE_COMPRESSION_LZMA        5
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#define        ARCHIVE_COMPRESSION_XZ                6
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#define        ARCHIVE_COMPRESSION_UU                7
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#define        ARCHIVE_COMPRESSION_RPM                8
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/*
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 * Codes returned by archive_format.
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 *
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 * Top 16 bits identifies the format family (e.g., "tar"); lower
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 * 16 bits indicate the variant.  This is updated by read_next_header.
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 * Note that the lower 16 bits will often vary from entry to entry.
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 * In some cases, this variation occurs as libarchive learns more about
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 * the archive (for example, later entries might utilize extensions that
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 * weren't necessary earlier in the archive; in this case, libarchive
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 * will change the format code to indicate the extended format that
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 * was used).  In other cases, it's because different tools have
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 * modified the archive and so different parts of the archive
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 * actually have slightly different formts.  (Both tar and cpio store
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 * format codes in each entry, so it is quite possible for each
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 * entry to be in a different format.)
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 */
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#define        ARCHIVE_FORMAT_BASE_MASK                0xff0000
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#define        ARCHIVE_FORMAT_CPIO                        0x10000
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#define        ARCHIVE_FORMAT_CPIO_POSIX                (ARCHIVE_FORMAT_CPIO | 1)
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#define        ARCHIVE_FORMAT_CPIO_BIN_LE                (ARCHIVE_FORMAT_CPIO | 2)
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#define        ARCHIVE_FORMAT_CPIO_BIN_BE                (ARCHIVE_FORMAT_CPIO | 3)
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#define        ARCHIVE_FORMAT_CPIO_SVR4_NOCRC                (ARCHIVE_FORMAT_CPIO | 4)
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#define        ARCHIVE_FORMAT_CPIO_SVR4_CRC                (ARCHIVE_FORMAT_CPIO | 5)
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#define        ARCHIVE_FORMAT_SHAR                        0x20000
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#define        ARCHIVE_FORMAT_SHAR_BASE                (ARCHIVE_FORMAT_SHAR | 1)
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#define        ARCHIVE_FORMAT_SHAR_DUMP                (ARCHIVE_FORMAT_SHAR | 2)
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#define        ARCHIVE_FORMAT_TAR                        0x30000
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#define        ARCHIVE_FORMAT_TAR_USTAR                (ARCHIVE_FORMAT_TAR | 1)
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#define        ARCHIVE_FORMAT_TAR_PAX_INTERCHANGE        (ARCHIVE_FORMAT_TAR | 2)
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#define        ARCHIVE_FORMAT_TAR_PAX_RESTRICTED        (ARCHIVE_FORMAT_TAR | 3)
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#define        ARCHIVE_FORMAT_TAR_GNUTAR                (ARCHIVE_FORMAT_TAR | 4)
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#define        ARCHIVE_FORMAT_ISO9660                        0x40000
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#define        ARCHIVE_FORMAT_ISO9660_ROCKRIDGE        (ARCHIVE_FORMAT_ISO9660 | 1)
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#define        ARCHIVE_FORMAT_ZIP                        0x50000
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#define        ARCHIVE_FORMAT_EMPTY                        0x60000
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#define        ARCHIVE_FORMAT_AR                        0x70000
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#define        ARCHIVE_FORMAT_AR_GNU                        (ARCHIVE_FORMAT_AR | 1)
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#define        ARCHIVE_FORMAT_AR_BSD                        (ARCHIVE_FORMAT_AR | 2)
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#define        ARCHIVE_FORMAT_MTREE                        0x80000
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#define        ARCHIVE_FORMAT_RAW                        0x90000
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#define        ARCHIVE_FORMAT_XAR                        0xA0000
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/*-
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 * Basic outline for reading an archive:
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 *   1) Ask archive_read_new for an archive reader object.
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 *   2) Update any global properties as appropriate.
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 *      In particular, you'll certainly want to call appropriate
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 *      archive_read_support_XXX functions.
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 *   3) Call archive_read_open_XXX to open the archive
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 *   4) Repeatedly call archive_read_next_header to get information about
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 *      successive archive entries.  Call archive_read_data to extract
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 *      data for entries of interest.
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 *   5) Call archive_read_finish to end processing.
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 */
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__LA_DECL struct archive        *archive_read_new(void);
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/*
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 * The archive_read_support_XXX calls enable auto-detect for this
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 * archive handle.  They also link in the necessary support code.
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 * For example, if you don't want bzlib linked in, don't invoke
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 * support_compression_bzip2().  The "all" functions provide the
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 * obvious shorthand.
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 */
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__LA_DECL int                 archive_read_support_compression_all(struct archive *);
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__LA_DECL int                 archive_read_support_compression_bzip2(struct archive *);
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__LA_DECL int                 archive_read_support_compression_compress(struct archive *);
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__LA_DECL int                 archive_read_support_compression_gzip(struct archive *);
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__LA_DECL int                 archive_read_support_compression_lzma(struct archive *);
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__LA_DECL int                 archive_read_support_compression_none(struct archive *);
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__LA_DECL int                 archive_read_support_compression_program(struct archive *,
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                     const char *command);
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__LA_DECL int                 archive_read_support_compression_program_signature
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                                (struct archive *, const char *,
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                                    const void * /* match */, size_t);
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__LA_DECL int                 archive_read_support_compression_rpm(struct archive *);
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__LA_DECL int                 archive_read_support_compression_uu(struct archive *);
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__LA_DECL int                 archive_read_support_compression_xz(struct archive *);
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__LA_DECL int                 archive_read_support_format_all(struct archive *);
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__LA_DECL int                 archive_read_support_format_ar(struct archive *);
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__LA_DECL int                 archive_read_support_format_cpio(struct archive *);
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__LA_DECL int                 archive_read_support_format_empty(struct archive *);
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__LA_DECL int                 archive_read_support_format_gnutar(struct archive *);
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__LA_DECL int                 archive_read_support_format_iso9660(struct archive *);
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__LA_DECL int                 archive_read_support_format_mtree(struct archive *);
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__LA_DECL int                 archive_read_support_format_raw(struct archive *);
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__LA_DECL int                 archive_read_support_format_tar(struct archive *);
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__LA_DECL int                 archive_read_support_format_xar(struct archive *);
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__LA_DECL int                 archive_read_support_format_zip(struct archive *);
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/* Open the archive using callbacks for archive I/O. */
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__LA_DECL int                 archive_read_open(struct archive *, void *_client_data,
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                     archive_open_callback *, archive_read_callback *,
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                     archive_close_callback *);
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__LA_DECL int                 archive_read_open2(struct archive *, void *_client_data,
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                     archive_open_callback *, archive_read_callback *,
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                     archive_skip_callback *, archive_close_callback *);
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/*
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 * A variety of shortcuts that invoke archive_read_open() with
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 * canned callbacks suitable for common situations.  The ones that
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 * accept a block size handle tape blocking correctly.
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 */
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/* Use this if you know the filename.  Note: NULL indicates stdin. */
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__LA_DECL int                 archive_read_open_filename(struct archive *,
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                     const char *_filename, size_t _block_size);
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/* archive_read_open_file() is a deprecated synonym for ..._open_filename(). */
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__LA_DECL int                 archive_read_open_file(struct archive *,
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                     const char *_filename, size_t _block_size);
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/* Read an archive that's stored in memory. */
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__LA_DECL int                 archive_read_open_memory(struct archive *,
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                     void * buff, size_t size);
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/* A more involved version that is only used for internal testing. */
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__LA_DECL int                archive_read_open_memory2(struct archive *a, void *buff,
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                     size_t size, size_t read_size);
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/* Read an archive that's already open, using the file descriptor. */
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__LA_DECL int                 archive_read_open_fd(struct archive *, int _fd,
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                     size_t _block_size);
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/* Read an archive that's already open, using a FILE *. */
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/* Note: DO NOT use this with tape drives. */
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__LA_DECL int                 archive_read_open_FILE(struct archive *, FILE *_file);
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/* Parses and returns next entry header. */
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__LA_DECL int                 archive_read_next_header(struct archive *,
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                     struct archive_entry **);
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/* Parses and returns next entry header using the archive_entry passed in */
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__LA_DECL int                 archive_read_next_header2(struct archive *,
379
                     struct archive_entry *);
380
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/*
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 * Retrieve the byte offset in UNCOMPRESSED data where last-read
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 * header started.
384
 */
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__LA_DECL __LA_INT64_T                 archive_read_header_position(struct archive *);
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/* Read data from the body of an entry.  Similar to read(2). */
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__LA_DECL __LA_SSIZE_T                 archive_read_data(struct archive *,
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                                    void *, size_t);
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/*
392
 * A zero-copy version of archive_read_data that also exposes the file offset
393
 * of each returned block.  Note that the client has no way to specify
394
 * the desired size of the block.  The API does guarantee that offsets will
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 * be strictly increasing and that returned blocks will not overlap.
396
 */
397
#if ARCHIVE_VERSION_NUMBER < 3000000
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__LA_DECL int                 archive_read_data_block(struct archive *a,
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                            const void **buff, size_t *size, off_t *offset);
400
#else
401
__LA_DECL int                 archive_read_data_block(struct archive *a,
402
                            const void **buff, size_t *size,
403
                            __LA_INT64_T *offset);
404
#endif
405
406
/*-
407
 * Some convenience functions that are built on archive_read_data:
408
 *  'skip': skips entire entry
409
 *  'into_buffer': writes data into memory buffer that you provide
410
 *  'into_fd': writes data to specified filedes
411
 */
412
__LA_DECL int                 archive_read_data_skip(struct archive *);
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__LA_DECL int                 archive_read_data_into_buffer(struct archive *,
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                            void *buffer, __LA_SSIZE_T len);
415
__LA_DECL int                 archive_read_data_into_fd(struct archive *, int fd);
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/*
418
 * Set read options.
419
 */
420
/* Apply option string to the format only. */
421
__LA_DECL int                archive_read_set_format_options(struct archive *_a,
422
                            const char *s);
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/* Apply option string to the filter only. */
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__LA_DECL int                archive_read_set_filter_options(struct archive *_a,
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                            const char *s);
426
/* Apply option string to both the format and the filter. */
427
__LA_DECL int                archive_read_set_options(struct archive *_a,
428
                            const char *s);
429
430
/*-
431
 * Convenience function to recreate the current entry (whose header
432
 * has just been read) on disk.
433
 *
434
 * This does quite a bit more than just copy data to disk. It also:
435
 *  - Creates intermediate directories as required.
436
 *  - Manages directory permissions:  non-writable directories will
437
 *    be initially created with write permission enabled; when the
438
 *    archive is closed, dir permissions are edited to the values specified
439
 *    in the archive.
440
 *  - Checks hardlinks:  hardlinks will not be extracted unless the
441
 *    linked-to file was also extracted within the same session. (TODO)
442
 */
443
444
/* The "flags" argument selects optional behavior, 'OR' the flags you want. */
445
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/* Default: Do not try to set owner/group. */
447
#define        ARCHIVE_EXTRACT_OWNER                        (0x0001)
448
/* Default: Do obey umask, do not restore SUID/SGID/SVTX bits. */
449
#define        ARCHIVE_EXTRACT_PERM                        (0x0002)
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/* Default: Do not restore mtime/atime. */
451
#define        ARCHIVE_EXTRACT_TIME                        (0x0004)
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/* Default: Replace existing files. */
453
#define        ARCHIVE_EXTRACT_NO_OVERWRITE                 (0x0008)
454
/* Default: Try create first, unlink only if create fails with EEXIST. */
455
#define        ARCHIVE_EXTRACT_UNLINK                        (0x0010)
456
/* Default: Do not restore ACLs. */
457
#define        ARCHIVE_EXTRACT_ACL                        (0x0020)
458
/* Default: Do not restore fflags. */
459
#define        ARCHIVE_EXTRACT_FFLAGS                        (0x0040)
460
/* Default: Do not restore xattrs. */
461
#define        ARCHIVE_EXTRACT_XATTR                         (0x0080)
462
/* Default: Do not try to guard against extracts redirected by symlinks. */
463
/* Note: With ARCHIVE_EXTRACT_UNLINK, will remove any intermediate symlink. */
464
#define        ARCHIVE_EXTRACT_SECURE_SYMLINKS                (0x0100)
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/* Default: Do not reject entries with '..' as path elements. */
466
#define        ARCHIVE_EXTRACT_SECURE_NODOTDOT                (0x0200)
467
/* Default: Create parent directories as needed. */
468
#define        ARCHIVE_EXTRACT_NO_AUTODIR                (0x0400)
469
/* Default: Overwrite files, even if one on disk is newer. */
470
#define        ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER        (0x0800)
471
/* Detect blocks of 0 and write holes instead. */
472
#define        ARCHIVE_EXTRACT_SPARSE                        (0x1000)
473
474
__LA_DECL int         archive_read_extract(struct archive *, struct archive_entry *,
475
                     int flags);
476
__LA_DECL int         archive_read_extract2(struct archive *, struct archive_entry *,
477
                     struct archive * /* dest */);
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__LA_DECL void         archive_read_extract_set_progress_callback(struct archive *,
479
                     void (*_progress_func)(void *), void *_user_data);
480
481
/* Record the dev/ino of a file that will not be written.  This is
482
 * generally set to the dev/ino of the archive being read. */
483
__LA_DECL void                archive_read_extract_set_skip_file(struct archive *,
484
                     dev_t, ino_t);
485
486
/* Close the file and release most resources. */
487
__LA_DECL int                 archive_read_close(struct archive *);
488
/* Release all resources and destroy the object. */
489
/* Note that archive_read_finish will call archive_read_close for you. */
490
#if ARCHIVE_VERSION_NUMBER < 2000000
491
/* Erroneously declared to return void in libarchive 1.x */
492
__LA_DECL void                 archive_read_finish(struct archive *);
493
#else
494
__LA_DECL int                 archive_read_finish(struct archive *);
495
#endif
496
497
/*-
498
 * To create an archive:
499
 *   1) Ask archive_write_new for a archive writer object.
500
 *   2) Set any global properties.  In particular, you should set
501
 *      the compression and format to use.
502
 *   3) Call archive_write_open to open the file (most people
503
 *       will use archive_write_open_file or archive_write_open_fd,
504
 *       which provide convenient canned I/O callbacks for you).
505
 *   4) For each entry:
506
 *      - construct an appropriate struct archive_entry structure
507
 *      - archive_write_header to write the header
508
 *      - archive_write_data to write the entry data
509
 *   5) archive_write_close to close the output
510
 *   6) archive_write_finish to cleanup the writer and release resources
511
 */
512
__LA_DECL struct archive        *archive_write_new(void);
513
__LA_DECL int                 archive_write_set_bytes_per_block(struct archive *,
514
                     int bytes_per_block);
515
__LA_DECL int                 archive_write_get_bytes_per_block(struct archive *);
516
/* XXX This is badly misnamed; suggestions appreciated. XXX */
517
__LA_DECL int                 archive_write_set_bytes_in_last_block(struct archive *,
518
                     int bytes_in_last_block);
519
__LA_DECL int                 archive_write_get_bytes_in_last_block(struct archive *);
520
521
/* The dev/ino of a file that won't be archived.  This is used
522
 * to avoid recursively adding an archive to itself. */
523
__LA_DECL int                 archive_write_set_skip_file(struct archive *, dev_t, ino_t);
524
525
__LA_DECL int                 archive_write_set_compression_bzip2(struct archive *);
526
__LA_DECL int                 archive_write_set_compression_compress(struct archive *);
527
__LA_DECL int                 archive_write_set_compression_gzip(struct archive *);
528
__LA_DECL int                 archive_write_set_compression_lzma(struct archive *);
529
__LA_DECL int                 archive_write_set_compression_none(struct archive *);
530
__LA_DECL int                 archive_write_set_compression_program(struct archive *,
531
                     const char *cmd);
532
__LA_DECL int                 archive_write_set_compression_xz(struct archive *);
533
/* A convenience function to set the format based on the code or name. */
534
__LA_DECL int                 archive_write_set_format(struct archive *, int format_code);
535
__LA_DECL int                 archive_write_set_format_by_name(struct archive *,
536
                     const char *name);
537
/* To minimize link pollution, use one or more of the following. */
538
__LA_DECL int                 archive_write_set_format_ar_bsd(struct archive *);
539
__LA_DECL int                 archive_write_set_format_ar_svr4(struct archive *);
540
__LA_DECL int                 archive_write_set_format_cpio(struct archive *);
541
__LA_DECL int                 archive_write_set_format_cpio_newc(struct archive *);
542
__LA_DECL int                 archive_write_set_format_mtree(struct archive *);
543
/* TODO: int archive_write_set_format_old_tar(struct archive *); */
544
__LA_DECL int                 archive_write_set_format_pax(struct archive *);
545
__LA_DECL int                 archive_write_set_format_pax_restricted(struct archive *);
546
__LA_DECL int                 archive_write_set_format_shar(struct archive *);
547
__LA_DECL int                 archive_write_set_format_shar_dump(struct archive *);
548
__LA_DECL int                 archive_write_set_format_ustar(struct archive *);
549
__LA_DECL int                 archive_write_set_format_zip(struct archive *);
550
__LA_DECL int                 archive_write_open(struct archive *, void *,
551
                     archive_open_callback *, archive_write_callback *,
552
                     archive_close_callback *);
553
__LA_DECL int                 archive_write_open_fd(struct archive *, int _fd);
554
__LA_DECL int                 archive_write_open_filename(struct archive *, const char *_file);
555
/* A deprecated synonym for archive_write_open_filename() */
556
__LA_DECL int                 archive_write_open_file(struct archive *, const char *_file);
557
__LA_DECL int                 archive_write_open_FILE(struct archive *, FILE *);
558
/* _buffSize is the size of the buffer, _used refers to a variable that
559
 * will be updated after each write into the buffer. */
560
__LA_DECL int                 archive_write_open_memory(struct archive *,
561
                        void *_buffer, size_t _buffSize, size_t *_used);
562
563
/*
564
 * Note that the library will truncate writes beyond the size provided
565
 * to archive_write_header or pad if the provided data is short.
566
 */
567
__LA_DECL int                 archive_write_header(struct archive *,
568
                     struct archive_entry *);
569
#if ARCHIVE_VERSION_NUMBER < 2000000
570
/* This was erroneously declared to return "int" in libarchive 1.x. */
571
__LA_DECL int                 archive_write_data(struct archive *,
572
                            const void *, size_t);
573
#else
574
/* Libarchive 2.0 and later return ssize_t here. */
575
__LA_DECL __LA_SSIZE_T         archive_write_data(struct archive *,
576
                            const void *, size_t);
577
#endif
578
579
#if ARCHIVE_VERSION_NUMBER < 3000000
580
/* Libarchive 1.x and 2.x use off_t for the argument, but that's not
581
 * stable on Linux. */
582
__LA_DECL __LA_SSIZE_T         archive_write_data_block(struct archive *,
583
                                    const void *, size_t, off_t);
584
#else
585
/* Libarchive 3.0 uses explicit int64_t to ensure consistent 64-bit support. */
586
__LA_DECL __LA_SSIZE_T         archive_write_data_block(struct archive *,
587
                                    const void *, size_t, __LA_INT64_T);
588
#endif
589
__LA_DECL int                 archive_write_finish_entry(struct archive *);
590
__LA_DECL int                 archive_write_close(struct archive *);
591
#if ARCHIVE_VERSION_NUMBER < 2000000
592
/* Return value was incorrect in libarchive 1.x. */
593
__LA_DECL void                 archive_write_finish(struct archive *);
594
#else
595
/* Libarchive 2.x and later returns an error if this fails. */
596
/* It can fail if the archive wasn't already closed, in which case
597
 * archive_write_finish() will implicitly call archive_write_close(). */
598
__LA_DECL int                 archive_write_finish(struct archive *);
599
#endif
600
601
/*
602
 * Set write options.
603
 */
604
/* Apply option string to the format only. */
605
__LA_DECL int                archive_write_set_format_options(struct archive *_a,
606
                            const char *s);
607
/* Apply option string to the compressor only. */
608
__LA_DECL int                archive_write_set_compressor_options(struct archive *_a,
609
                            const char *s);
610
/* Apply option string to both the format and the compressor. */
611
__LA_DECL int                archive_write_set_options(struct archive *_a,
612
                            const char *s);
613
614
615
/*-
616
 * ARCHIVE_WRITE_DISK API
617
 *
618
 * To create objects on disk:
619
 *   1) Ask archive_write_disk_new for a new archive_write_disk object.
620
 *   2) Set any global properties.  In particular, you probably
621
 *      want to set the options.
622
 *   3) For each entry:
623
 *      - construct an appropriate struct archive_entry structure
624
 *      - archive_write_header to create the file/dir/etc on disk
625
 *      - archive_write_data to write the entry data
626
 *   4) archive_write_finish to cleanup the writer and release resources
627
 *
628
 * In particular, you can use this in conjunction with archive_read()
629
 * to pull entries out of an archive and create them on disk.
630
 */
631
__LA_DECL struct archive        *archive_write_disk_new(void);
632
/* This file will not be overwritten. */
633
__LA_DECL int                 archive_write_disk_set_skip_file(struct archive *,
634
                     dev_t, ino_t);
635
/* Set flags to control how the next item gets created.
636
 * This accepts a bitmask of ARCHIVE_EXTRACT_XXX flags defined above. */
637
__LA_DECL int                 archive_write_disk_set_options(struct archive *,
638
                     int flags);
639
/*
640
 * The lookup functions are given uname/uid (or gname/gid) pairs and
641
 * return a uid (gid) suitable for this system.  These are used for
642
 * restoring ownership and for setting ACLs.  The default functions
643
 * are naive, they just return the uid/gid.  These are small, so reasonable
644
 * for applications that don't need to preserve ownership; they
645
 * are probably also appropriate for applications that are doing
646
 * same-system backup and restore.
647
 */
648
/*
649
 * The "standard" lookup functions use common system calls to lookup
650
 * the uname/gname, falling back to the uid/gid if the names can't be
651
 * found.  They cache lookups and are reasonably fast, but can be very
652
 * large, so they are not used unless you ask for them.  In
653
 * particular, these match the specifications of POSIX "pax" and old
654
 * POSIX "tar".
655
 */
656
__LA_DECL int         archive_write_disk_set_standard_lookup(struct archive *);
657
/*
658
 * If neither the default (naive) nor the standard (big) functions suit
659
 * your needs, you can write your own and register them.  Be sure to
660
 * include a cleanup function if you have allocated private data.
661
 */
662
__LA_DECL int         archive_write_disk_set_group_lookup(struct archive *,
663
                            void * /* private_data */,
664
                            __LA_GID_T (*)(void *, const char *, __LA_GID_T),
665
                            void (* /* cleanup */)(void *));
666
__LA_DECL int         archive_write_disk_set_user_lookup(struct archive *,
667
                            void * /* private_data */,
668
                            __LA_UID_T (*)(void *, const char *, __LA_UID_T),
669
                            void (* /* cleanup */)(void *));
670
671
/*
672
 * ARCHIVE_READ_DISK API
673
 *
674
 * This is still evolving and somewhat experimental.
675
 */
676
__LA_DECL struct archive *archive_read_disk_new(void);
677
/* The names for symlink modes here correspond to an old BSD
678
 * command-line argument convention: -L, -P, -H */
679
/* Follow all symlinks. */
680
__LA_DECL int archive_read_disk_set_symlink_logical(struct archive *);
681
/* Follow no symlinks. */
682
__LA_DECL int archive_read_disk_set_symlink_physical(struct archive *);
683
/* Follow symlink initially, then not. */
684
__LA_DECL int archive_read_disk_set_symlink_hybrid(struct archive *);
685
/* TODO: Handle Linux stat32/stat64 ugliness. <sigh> */
686
__LA_DECL int archive_read_disk_entry_from_file(struct archive *,
687
    struct archive_entry *, int /* fd */, const struct stat *);
688
/* Look up gname for gid or uname for uid. */
689
/* Default implementations are very, very stupid. */
690
__LA_DECL const char *archive_read_disk_gname(struct archive *, __LA_GID_T);
691
__LA_DECL const char *archive_read_disk_uname(struct archive *, __LA_UID_T);
692
/* "Standard" implementation uses getpwuid_r, getgrgid_r and caches the
693
 * results for performance. */
694
__LA_DECL int        archive_read_disk_set_standard_lookup(struct archive *);
695
/* You can install your own lookups if you like. */
696
__LA_DECL int        archive_read_disk_set_gname_lookup(struct archive *,
697
    void * /* private_data */,
698
    const char *(* /* lookup_fn */)(void *, __LA_GID_T),
699
    void (* /* cleanup_fn */)(void *));
700
__LA_DECL int        archive_read_disk_set_uname_lookup(struct archive *,
701
    void * /* private_data */,
702
    const char *(* /* lookup_fn */)(void *, __LA_UID_T),
703
    void (* /* cleanup_fn */)(void *));
704
705
/*
706
 * Accessor functions to read/set various information in
707
 * the struct archive object:
708
 */
709
/* Bytes written after compression or read before decompression. */
710
__LA_DECL __LA_INT64_T         archive_position_compressed(struct archive *);
711
/* Bytes written to compressor or read from decompressor. */
712
__LA_DECL __LA_INT64_T         archive_position_uncompressed(struct archive *);
713
714
__LA_DECL const char        *archive_compression_name(struct archive *);
715
__LA_DECL int                 archive_compression(struct archive *);
716
__LA_DECL int                 archive_errno(struct archive *);
717
__LA_DECL const char        *archive_error_string(struct archive *);
718
__LA_DECL const char        *archive_format_name(struct archive *);
719
__LA_DECL int                 archive_format(struct archive *);
720
__LA_DECL void                 archive_clear_error(struct archive *);
721
__LA_DECL void                 archive_set_error(struct archive *, int _err,
722
                            const char *fmt, ...)
723
                         __attribute__((__format__(__printf__,3,4)));
724
__LA_DECL void                 archive_copy_error(struct archive *dest,
725
                            struct archive *src);
726
__LA_DECL int                 archive_file_count(struct archive *);
727
728
#ifdef __cplusplus
729
}
730
#endif
731
732
/* These are meaningless outside of this header. */
733
#undef __LA_DECL
734
#undef __LA_GID_T
735
#undef __LA_UID_T
736
737
/* These need to remain defined because they're used in the
738
 * callback type definitions.  XXX Fix this.  This is ugly. XXX */
739
/* #undef __LA_INT64_T */
740
/* #undef __LA_SSIZE_T */
741
742
#endif /* !ARCHIVE_H_INCLUDED */