721 lines
30 KiB
C
721 lines
30 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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* $FreeBSD$
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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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#include <sys/stat.h>
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#include <sys/types.h> /* Linux requires this for off_t */
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#if !defined(__WATCOMC__) && !defined(_MSC_VER) && !defined(__INTERIX)
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/* Header unavailable on Watcom C or MS Visual C++ or SFU. */
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#include <inttypes.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(_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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#define __LA_UID_T unsigned int
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#define __LA_GID_T unsigned int
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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 2007000
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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 2.7.0"
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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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/*
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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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/*-
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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_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_tar(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 *,
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struct archive_entry *);
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/*
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* Retrieve the byte offset in UNCOMPRESSED data where last-read
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* header started.
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*/
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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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/*
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* A zero-copy version of archive_read_data that also exposes the file offset
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* of each returned block. Note that the client has no way to specify
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* 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.
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*/
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#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);
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#else
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__LA_DECL int archive_read_data_block(struct archive *a,
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const void **buff, size_t *size,
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__LA_INT64_T *offset);
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#endif
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/*-
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* Some convenience functions that are built on archive_read_data:
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* 'skip': skips entire entry
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* 'into_buffer': writes data into memory buffer that you provide
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* 'into_fd': writes data to specified filedes
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*/
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__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);
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__LA_DECL int archive_read_data_into_fd(struct archive *, int fd);
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/*
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* Set read options.
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*/
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/* Apply option string to the format only. */
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__LA_DECL int archive_read_set_format_options(struct archive *_a,
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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);
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/* Apply option string to both the format and the filter. */
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__LA_DECL int archive_read_set_options(struct archive *_a,
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const char *s);
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/*-
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* Convenience function to recreate the current entry (whose header
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* has just been read) on disk.
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*
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* This does quite a bit more than just copy data to disk. It also:
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* - Creates intermediate directories as required.
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* - Manages directory permissions: non-writable directories will
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* be initially created with write permission enabled; when the
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* archive is closed, dir permissions are edited to the values specified
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* in the archive.
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* - Checks hardlinks: hardlinks will not be extracted unless the
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* linked-to file was also extracted within the same session. (TODO)
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*/
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/* The "flags" argument selects optional behavior, 'OR' the flags you want. */
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/* Default: Do not try to set owner/group. */
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#define ARCHIVE_EXTRACT_OWNER (0x0001)
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/* Default: Do obey umask, do not restore SUID/SGID/SVTX bits. */
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#define ARCHIVE_EXTRACT_PERM (0x0002)
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/* Default: Do not restore mtime/atime. */
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#define ARCHIVE_EXTRACT_TIME (0x0004)
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/* Default: Replace existing files. */
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#define ARCHIVE_EXTRACT_NO_OVERWRITE (0x0008)
|
|
/* Default: Try create first, unlink only if create fails with EEXIST. */
|
|
#define ARCHIVE_EXTRACT_UNLINK (0x0010)
|
|
/* Default: Do not restore ACLs. */
|
|
#define ARCHIVE_EXTRACT_ACL (0x0020)
|
|
/* Default: Do not restore fflags. */
|
|
#define ARCHIVE_EXTRACT_FFLAGS (0x0040)
|
|
/* Default: Do not restore xattrs. */
|
|
#define ARCHIVE_EXTRACT_XATTR (0x0080)
|
|
/* Default: Do not try to guard against extracts redirected by symlinks. */
|
|
/* Note: With ARCHIVE_EXTRACT_UNLINK, will remove any intermediate symlink. */
|
|
#define ARCHIVE_EXTRACT_SECURE_SYMLINKS (0x0100)
|
|
/* Default: Do not reject entries with '..' as path elements. */
|
|
#define ARCHIVE_EXTRACT_SECURE_NODOTDOT (0x0200)
|
|
/* Default: Create parent directories as needed. */
|
|
#define ARCHIVE_EXTRACT_NO_AUTODIR (0x0400)
|
|
/* Default: Overwrite files, even if one on disk is newer. */
|
|
#define ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER (0x0800)
|
|
/* Detect blocks of 0 and write holes instead. */
|
|
#define ARCHIVE_EXTRACT_SPARSE (0x1000)
|
|
|
|
__LA_DECL int archive_read_extract(struct archive *, struct archive_entry *,
|
|
int flags);
|
|
__LA_DECL int archive_read_extract2(struct archive *, struct archive_entry *,
|
|
struct archive * /* dest */);
|
|
__LA_DECL void archive_read_extract_set_progress_callback(struct archive *,
|
|
void (*_progress_func)(void *), void *_user_data);
|
|
|
|
/* Record the dev/ino of a file that will not be written. This is
|
|
* generally set to the dev/ino of the archive being read. */
|
|
__LA_DECL void archive_read_extract_set_skip_file(struct archive *,
|
|
dev_t, ino_t);
|
|
|
|
/* Close the file and release most resources. */
|
|
__LA_DECL int archive_read_close(struct archive *);
|
|
/* Release all resources and destroy the object. */
|
|
/* Note that archive_read_finish will call archive_read_close for you. */
|
|
#if ARCHIVE_VERSION_NUMBER < 2000000
|
|
/* Erroneously declared to return void in libarchive 1.x */
|
|
__LA_DECL void archive_read_finish(struct archive *);
|
|
#else
|
|
__LA_DECL int archive_read_finish(struct archive *);
|
|
#endif
|
|
|
|
/*-
|
|
* To create an archive:
|
|
* 1) Ask archive_write_new for a archive writer object.
|
|
* 2) Set any global properties. In particular, you should set
|
|
* the compression and format to use.
|
|
* 3) Call archive_write_open to open the file (most people
|
|
* will use archive_write_open_file or archive_write_open_fd,
|
|
* which provide convenient canned I/O callbacks for you).
|
|
* 4) For each entry:
|
|
* - construct an appropriate struct archive_entry structure
|
|
* - archive_write_header to write the header
|
|
* - archive_write_data to write the entry data
|
|
* 5) archive_write_close to close the output
|
|
* 6) archive_write_finish to cleanup the writer and release resources
|
|
*/
|
|
__LA_DECL struct archive *archive_write_new(void);
|
|
__LA_DECL int archive_write_set_bytes_per_block(struct archive *,
|
|
int bytes_per_block);
|
|
__LA_DECL int archive_write_get_bytes_per_block(struct archive *);
|
|
/* XXX This is badly misnamed; suggestions appreciated. XXX */
|
|
__LA_DECL int archive_write_set_bytes_in_last_block(struct archive *,
|
|
int bytes_in_last_block);
|
|
__LA_DECL int archive_write_get_bytes_in_last_block(struct archive *);
|
|
|
|
/* The dev/ino of a file that won't be archived. This is used
|
|
* to avoid recursively adding an archive to itself. */
|
|
__LA_DECL int archive_write_set_skip_file(struct archive *, dev_t, ino_t);
|
|
|
|
__LA_DECL int archive_write_set_compression_bzip2(struct archive *);
|
|
__LA_DECL int archive_write_set_compression_compress(struct archive *);
|
|
__LA_DECL int archive_write_set_compression_gzip(struct archive *);
|
|
__LA_DECL int archive_write_set_compression_lzma(struct archive *);
|
|
__LA_DECL int archive_write_set_compression_none(struct archive *);
|
|
__LA_DECL int archive_write_set_compression_program(struct archive *,
|
|
const char *cmd);
|
|
__LA_DECL int archive_write_set_compression_xz(struct archive *);
|
|
/* A convenience function to set the format based on the code or name. */
|
|
__LA_DECL int archive_write_set_format(struct archive *, int format_code);
|
|
__LA_DECL int archive_write_set_format_by_name(struct archive *,
|
|
const char *name);
|
|
/* To minimize link pollution, use one or more of the following. */
|
|
__LA_DECL int archive_write_set_format_ar_bsd(struct archive *);
|
|
__LA_DECL int archive_write_set_format_ar_svr4(struct archive *);
|
|
__LA_DECL int archive_write_set_format_cpio(struct archive *);
|
|
__LA_DECL int archive_write_set_format_cpio_newc(struct archive *);
|
|
__LA_DECL int archive_write_set_format_mtree(struct archive *);
|
|
/* TODO: int archive_write_set_format_old_tar(struct archive *); */
|
|
__LA_DECL int archive_write_set_format_pax(struct archive *);
|
|
__LA_DECL int archive_write_set_format_pax_restricted(struct archive *);
|
|
__LA_DECL int archive_write_set_format_shar(struct archive *);
|
|
__LA_DECL int archive_write_set_format_shar_dump(struct archive *);
|
|
__LA_DECL int archive_write_set_format_ustar(struct archive *);
|
|
__LA_DECL int archive_write_open(struct archive *, void *,
|
|
archive_open_callback *, archive_write_callback *,
|
|
archive_close_callback *);
|
|
__LA_DECL int archive_write_open_fd(struct archive *, int _fd);
|
|
__LA_DECL int archive_write_open_filename(struct archive *, const char *_file);
|
|
/* A deprecated synonym for archive_write_open_filename() */
|
|
__LA_DECL int archive_write_open_file(struct archive *, const char *_file);
|
|
__LA_DECL int archive_write_open_FILE(struct archive *, FILE *);
|
|
/* _buffSize is the size of the buffer, _used refers to a variable that
|
|
* will be updated after each write into the buffer. */
|
|
__LA_DECL int archive_write_open_memory(struct archive *,
|
|
void *_buffer, size_t _buffSize, size_t *_used);
|
|
|
|
/*
|
|
* Note that the library will truncate writes beyond the size provided
|
|
* to archive_write_header or pad if the provided data is short.
|
|
*/
|
|
__LA_DECL int archive_write_header(struct archive *,
|
|
struct archive_entry *);
|
|
#if ARCHIVE_VERSION_NUMBER < 2000000
|
|
/* This was erroneously declared to return "int" in libarchive 1.x. */
|
|
__LA_DECL int archive_write_data(struct archive *,
|
|
const void *, size_t);
|
|
#else
|
|
/* Libarchive 2.0 and later return ssize_t here. */
|
|
__LA_DECL __LA_SSIZE_T archive_write_data(struct archive *,
|
|
const void *, size_t);
|
|
#endif
|
|
|
|
#if ARCHIVE_VERSION_NUMBER < 3000000
|
|
/* Libarchive 1.x and 2.x use off_t for the argument, but that's not
|
|
* stable on Linux. */
|
|
__LA_DECL __LA_SSIZE_T archive_write_data_block(struct archive *,
|
|
const void *, size_t, off_t);
|
|
#else
|
|
/* Libarchive 3.0 uses explicit int64_t to ensure consistent 64-bit support. */
|
|
__LA_DECL __LA_SSIZE_T archive_write_data_block(struct archive *,
|
|
const void *, size_t, __LA_INT64_T);
|
|
#endif
|
|
__LA_DECL int archive_write_finish_entry(struct archive *);
|
|
__LA_DECL int archive_write_close(struct archive *);
|
|
#if ARCHIVE_VERSION_NUMBER < 2000000
|
|
/* Return value was incorrect in libarchive 1.x. */
|
|
__LA_DECL void archive_write_finish(struct archive *);
|
|
#else
|
|
/* Libarchive 2.x and later returns an error if this fails. */
|
|
/* It can fail if the archive wasn't already closed, in which case
|
|
* archive_write_finish() will implicitly call archive_write_close(). */
|
|
__LA_DECL int archive_write_finish(struct archive *);
|
|
#endif
|
|
|
|
/*
|
|
* Set write options.
|
|
*/
|
|
/* Apply option string to the format only. */
|
|
__LA_DECL int archive_write_set_format_options(struct archive *_a,
|
|
const char *s);
|
|
/* Apply option string to the compressor only. */
|
|
__LA_DECL int archive_write_set_compressor_options(struct archive *_a,
|
|
const char *s);
|
|
/* Apply option string to both the format and the compressor. */
|
|
__LA_DECL int archive_write_set_options(struct archive *_a,
|
|
const char *s);
|
|
|
|
|
|
/*-
|
|
* ARCHIVE_WRITE_DISK API
|
|
*
|
|
* To create objects on disk:
|
|
* 1) Ask archive_write_disk_new for a new archive_write_disk object.
|
|
* 2) Set any global properties. In particular, you probably
|
|
* want to set the options.
|
|
* 3) For each entry:
|
|
* - construct an appropriate struct archive_entry structure
|
|
* - archive_write_header to create the file/dir/etc on disk
|
|
* - archive_write_data to write the entry data
|
|
* 4) archive_write_finish to cleanup the writer and release resources
|
|
*
|
|
* In particular, you can use this in conjunction with archive_read()
|
|
* to pull entries out of an archive and create them on disk.
|
|
*/
|
|
__LA_DECL struct archive *archive_write_disk_new(void);
|
|
/* This file will not be overwritten. */
|
|
__LA_DECL int archive_write_disk_set_skip_file(struct archive *,
|
|
dev_t, ino_t);
|
|
/* Set flags to control how the next item gets created.
|
|
* This accepts a bitmask of ARCHIVE_EXTRACT_XXX flags defined above. */
|
|
__LA_DECL int archive_write_disk_set_options(struct archive *,
|
|
int flags);
|
|
/*
|
|
* The lookup functions are given uname/uid (or gname/gid) pairs and
|
|
* return a uid (gid) suitable for this system. These are used for
|
|
* restoring ownership and for setting ACLs. The default functions
|
|
* are naive, they just return the uid/gid. These are small, so reasonable
|
|
* for applications that don't need to preserve ownership; they
|
|
* are probably also appropriate for applications that are doing
|
|
* same-system backup and restore.
|
|
*/
|
|
/*
|
|
* The "standard" lookup functions use common system calls to lookup
|
|
* the uname/gname, falling back to the uid/gid if the names can't be
|
|
* found. They cache lookups and are reasonably fast, but can be very
|
|
* large, so they are not used unless you ask for them. In
|
|
* particular, these match the specifications of POSIX "pax" and old
|
|
* POSIX "tar".
|
|
*/
|
|
__LA_DECL int archive_write_disk_set_standard_lookup(struct archive *);
|
|
/*
|
|
* If neither the default (naive) nor the standard (big) functions suit
|
|
* your needs, you can write your own and register them. Be sure to
|
|
* include a cleanup function if you have allocated private data.
|
|
*/
|
|
__LA_DECL int archive_write_disk_set_group_lookup(struct archive *,
|
|
void * /* private_data */,
|
|
__LA_GID_T (*)(void *, const char *, __LA_GID_T),
|
|
void (* /* cleanup */)(void *));
|
|
__LA_DECL int archive_write_disk_set_user_lookup(struct archive *,
|
|
void * /* private_data */,
|
|
__LA_UID_T (*)(void *, const char *, __LA_UID_T),
|
|
void (* /* cleanup */)(void *));
|
|
|
|
/*
|
|
* ARCHIVE_READ_DISK API
|
|
*
|
|
* This is still evolving and somewhat experimental.
|
|
*/
|
|
__LA_DECL struct archive *archive_read_disk_new(void);
|
|
/* The names for symlink modes here correspond to an old BSD
|
|
* command-line argument convention: -L, -P, -H */
|
|
/* Follow all symlinks. */
|
|
__LA_DECL int archive_read_disk_set_symlink_logical(struct archive *);
|
|
/* Follow no symlinks. */
|
|
__LA_DECL int archive_read_disk_set_symlink_physical(struct archive *);
|
|
/* Follow symlink initially, then not. */
|
|
__LA_DECL int archive_read_disk_set_symlink_hybrid(struct archive *);
|
|
/* TODO: Handle Linux stat32/stat64 ugliness. <sigh> */
|
|
__LA_DECL int archive_read_disk_entry_from_file(struct archive *,
|
|
struct archive_entry *, int /* fd */, const struct stat *);
|
|
/* Look up gname for gid or uname for uid. */
|
|
/* Default implementations are very, very stupid. */
|
|
__LA_DECL const char *archive_read_disk_gname(struct archive *, __LA_GID_T);
|
|
__LA_DECL const char *archive_read_disk_uname(struct archive *, __LA_UID_T);
|
|
/* "Standard" implementation uses getpwuid_r, getgrgid_r and caches the
|
|
* results for performance. */
|
|
__LA_DECL int archive_read_disk_set_standard_lookup(struct archive *);
|
|
/* You can install your own lookups if you like. */
|
|
__LA_DECL int archive_read_disk_set_gname_lookup(struct archive *,
|
|
void * /* private_data */,
|
|
const char *(* /* lookup_fn */)(void *, __LA_GID_T),
|
|
void (* /* cleanup_fn */)(void *));
|
|
__LA_DECL int archive_read_disk_set_uname_lookup(struct archive *,
|
|
void * /* private_data */,
|
|
const char *(* /* lookup_fn */)(void *, __LA_UID_T),
|
|
void (* /* cleanup_fn */)(void *));
|
|
|
|
/*
|
|
* Accessor functions to read/set various information in
|
|
* the struct archive object:
|
|
*/
|
|
/* Bytes written after compression or read before decompression. */
|
|
__LA_DECL __LA_INT64_T archive_position_compressed(struct archive *);
|
|
/* Bytes written to compressor or read from decompressor. */
|
|
__LA_DECL __LA_INT64_T archive_position_uncompressed(struct archive *);
|
|
|
|
__LA_DECL const char *archive_compression_name(struct archive *);
|
|
__LA_DECL int archive_compression(struct archive *);
|
|
__LA_DECL int archive_errno(struct archive *);
|
|
__LA_DECL const char *archive_error_string(struct archive *);
|
|
__LA_DECL const char *archive_format_name(struct archive *);
|
|
__LA_DECL int archive_format(struct archive *);
|
|
__LA_DECL void archive_clear_error(struct archive *);
|
|
__LA_DECL void archive_set_error(struct archive *, int _err,
|
|
const char *fmt, ...);
|
|
__LA_DECL void archive_copy_error(struct archive *dest,
|
|
struct archive *src);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/* These are meaningless outside of this header. */
|
|
#undef __LA_DECL
|
|
#undef __LA_GID_T
|
|
#undef __LA_UID_T
|
|
|
|
/* These need to remain defined because they're used in the
|
|
* callback type definitions. XXX Fix this. This is ugly. XXX */
|
|
/* #undef __LA_INT64_T */
|
|
/* #undef __LA_SSIZE_T */
|
|
|
|
#endif /* !ARCHIVE_H_INCLUDED */
|