libarchive/libarchive_changes.3 - third_party/libarchive - Git at Google

 .\" Copyright (c) 2011 Tim Kientzle
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\" $FreeBSD$
 .\"
 .Dd December 23, 2011
 .Dt LIBARCHIVE_CHANGES 3
 .Os
 .Sh NAME
 .Nd changes in libarchive interface
 .\"
 .Sh CHANGES IN LIBARCHIVE 3
 This page describes user-visible changes in libarchive3, and lists
 public functions and other symbols changed, deprecated or removed
 in libarchive3, along with their replacements if any.
 .Pp
 .\"
 .Ss Multiple Filters
 .\"
 Libarchive2 permitted a single (input or output) filter active
 on an archive.
 Libarchive3 extends this into a variable-length stack.
 Where
 .Fn archive_write_set_compression_XXX
 would replace any existing filter,
 .Fn archive_write_add_filter_XXX
 extends the write pipeline with another filter.
 .\"
 .Ss Character Set Handling
 .\"
 Libarchive2 assumed that the local platform uses
 .Tn Unicode
 as the native
 .Tn wchar_t
 encoding, which is true on
 .Tn Windows ,
 modern
 .Tn Linux ,
 and a few other systems, but is certainly not universal.
 As a result, pax format archives were written incorrectly on some
 systems, since pax format requires
 .Tn UTF-8
 and libarchive 2 incorrectly
 assumed that
 .Tn wchar_t
 strings can be easily converted to
 .Tn UTF-8 .
 .Pp
 Libarchive3 uses the standard iconv library to convert between character
 sets and is introducing the notion of a
 .Dq default character set for the archive .
 To support this,
 .Tn archive_entry
 objects can now be bound to a particular archive when they are created.
 The automatic character set conversions performed by
 .Tn archive_entry
 objects when reading and writing filenames, usernames, and other strings
 will now use an appropriate default character set:
 .Pp
 If the
 .Tn archive_entry
 object is bound to an archive, it will use the
 default character set for that archive.
 .Pp
 The platform default character encoding (as returned by
 .Fn nl_langinfo CHARSET )
 will be used if nothing else is specified.
 .Pp
 Libarchive3 also introduces charset options to many of the archive
 readers and writers to control the character set that will be used for
 filenames written in those archives.
 When possible, this will be set automatically based on information in
 the archive itself.
 Combining this with the notion of a default character set for the
 archive should allow you to configure libarchive to read archives from
 other platforms and have the filenames and other information
 transparently converted to the character encoding suitable for your
 application.
 .\"
 .Ss Prototype Changes
 .\"
 These changes break binary compatibility; libarchive3 has a new shared
 library version to reflect these changes.
 The library now uses portable wide types such as
 .Tn int64_t
 instead of less-portable types such as
 .Tn off_t ,
 .Tn gid_t ,
 .Tn uid_t ,
 and
 .Tn ino_t .
 .Pp
 There are a few cases where these changes will affect your source code:
 .Bl -bullet -width ind
 .It
 In some cases, libarchive's wider types will introduce the possibility
 of truncation: for example, on a system with a 16-bit
 .Tn uid_t , you risk having uid
 .Li 65536
 be truncated to uid
 .Li 0 ,
 which can cause serious security problems.
 .It
 Typedef function pointer types will be incompatible.
 For example, if you define custom skip callbacks, you may have to use
 code similar to the following if you want to support building against
 libarchive2 and libarchive3:
 .Bd -literal
 #if ARCHIVE_VERSION_NUMBER < 3000000
 typedef off_t myoff_t;
 #else
 typedef int64_t myoff_t;
 #endif

 myoff_t
 my_skip_function(struct archive *a, void *v, myoff_t o)
 {
     ... implementation ...
 }
 .Ed
 .El
 .Pp
 Affected functions:
 .Pp
 .Bl -bullet -compact
 .It
 .Xo
 .Fn archive_entry_gid ,
 .Fn archive_entry_set_gid
 .Xc
 .It
 .Xo
 .Fn archive_entry_uid ,
 .Fn archive_entry_set_uid
 .Xc
 .It
 .Xo
 .Fn archive_entry_ino ,
 .Fn archive_entry_set_ino
 .Xc
 .It
 .Xo
 .Fn archive_read_data_block ,
 .Fn archive_write_data_block
 .Xc
 .It
 .Xo
 .Fn archive_read_disk_gname ,
 .Fn archive_read_disk_uname
 .Xc
 .It
 .Xo
 .Fn archive_read_disk_set_gname_lookup ,
 .Fn archive_read_disk_set_group_lookup ,
 .Fn archive_read_disk_set_uname_lookup ,
 .Fn archive_read_disk_set_user_lookup
 .Xc
 .It
 .Fn archive_skip_callback
 .It
 .Xo
 .Fn archive_read_extract_set_skip_file ,
 .Fn archive_write_disk_set_skip_file ,
 .Fn archive_write_set_skip_file
 .Xc
 .It
 .Xo
 .Fn archive_write_disk_set_group_lookup ,
 .Fn archive_write_disk_set_user_lookup
 .Xc
 .El
 .Pp
 Where these functions or their arguments took or returned
 .Tn gid_t ,
 .Tn ino_t ,
 .Tn off_t ,
 or
 .Tn uid_t
 they now take or return
 .Tn int64_t
 or equivalent.
 .\"
 .Ss Deprecated Symbols
 .\"
 Symbols deprecated in libarchive3 will be removed in libarchive4.
 These symbols, along with their replacements if any, are listed below:
 .\"
 .Bl -tag -width ind
 .It Fn archive_position_compressed , Fn archive_position_uncompressed
 .Fn archive_filter_bytes
 .It Fn archive_compression
 .Fn archive_filter_code
 .It Fn archive_compression_name
 .Fn archive_filter_name
 .It Fn archive_read_finish , Fn archive_write_finish
 .Fn archive_read_free ,
 .Fn archive_write_free
 .It Fn archive_read_open_file , Fn archive_write_open_file
 .Fn archive_read_open_filename ,
 .Fn archive_write_open_filename
 .It Fn archive_read_support_compression_all
 .\" archive_read_support_compression_* -> archive_read_support_filter_*
 .Fn archive_read_support_filter_all
 .It Fn archive_read_support_compression_bzip2
 .Fn archive_read_support_filter_bzip2
 .It Fn archive_read_support_compression_compress
 .Fn archive_read_support_filter_compress
 .It Fn archive_read_support_compression_gzip
 .Fn archive_read_support_filter_gzip
 .It Fn archive_read_support_compression_lzip
 .Fn archive_read_support_filter_lzip
 .It Fn archive_read_support_compression_lzma
 .Fn archive_read_support_filter_lzma
 .It Fn archive_read_support_compression_none
 .Fn archive_read_support_filter_none
 .It Fn archive_read_support_compression_program
 .Fn archive_read_support_filter_program
 .It Fn archive_read_support_compression_program_signature
 .Fn archive_read_support_filter_program_signature
 .It Fn archive_read_support_compression_rpm
 .Fn archive_read_support_filter_rpm
 .It Fn archive_read_support_compression_uu
 .Fn archive_read_support_filter_uu
 .It Fn archive_read_support_compression_xz
 .Fn archive_read_support_filter_xz
 .\" archive_write_set_compression_* -> archive_write_add_filter_*
 .It Fn archive_write_set_compression_bzip2
 .Fn archive_write_add_filter_bzip2
 .It Fn archive_write_set_compression_compress
 .Fn archive_write_add_filter_compress
 .It Fn archive_write_set_compression_gzip
 .Fn archive_write_add_filter_gzip
 .It Fn archive_write_set_compression_lzip
 .Fn archive_write_add_filter_lzip
 .It Fn archive_write_set_compression_lzma
 .Fn archive_write_add_filter_lzma
 .It Fn archive_write_set_compression_none
 .Fn archive_write_add_filter_none
 .It Fn archive_write_set_compression_program
 .Fn archive_write_add_filter_program
 .It Fn archive_write_set_compression_filter
 .Fn archive_write_add_filter_filter
 .El
 .\"
 .Ss Removed Symbols
 .\"
 These symbols, listed below along with their replacements if any,
 were deprecated in libarchive2, and are not part of libarchive3.
 .\"
 .Bl -tag -width ind
 .It Fn archive_api_feature
 .Fn archive_version_number
 .It Fn archive_api_version
 .Fn archive_version_number
 .It Fn archive_version
 .Fn archive_version_string
 .It Fn archive_version_stamp
 .Fn archive_version_number
 .It Fn archive_read_set_filter_options
 .Fn archive_read_set_options
 or
 .Fn archive_read_set_filter_option
 .It Fn archive_read_set_format_options
 .Fn archive_read_set_options
 or
 .Fn archive_read_set_format_option
 .It Fn archive_write_set_filter_options
 .Fn archive_write_set_options
 or
 .Fn archive_write_set_filter_option
 .It Fn archive_write_set_format_options
 .Fn archive_write_set_options
 or
 .Fn archive_write_set_format_option
 .It Dv ARCHIVE_API_FEATURE
 .Dv ARCHIVE_VERSION_NUMBER
 .It Dv ARCHIVE_API_VERSION
 .Dv ARCHIVE_VERSION_NUMBER
 .It Dv ARCHIVE_VERSION_STAMP
 .Dv ARCHIVE_VERSION_NUMBER
 .It Dv ARCHIVE_LIBRARY_VERSION
 .Dv ARCHIVE_VERSION_STRING
 .\"
 .It Dv ARCHIVE_COMPRESSION_NONE
 .Dv ARCHIVE_FILTER_NONE
 .It Dv ARCHIVE_COMPRESSION_GZIP
 .Dv ARCHIVE_FILTER_GZIP
 .It Dv ARCHIVE_COMPRESSION_BZIP2
 .Dv ARCHIVE_FILTER_BZIP2
 .It Dv ARCHIVE_COMPRESSION_COMPRESS
 .Dv ARCHIVE_FILTER_COMPRESS
 .It Dv ARCHIVE_COMPRESSION_PROGRAM
 .Dv ARCHIVE_FILTER_PROGRAM
 .It Dv ARCHIVE_COMPRESSION_LZMA
 .Dv ARCHIVE_FILTER_LZMA
 .It Dv ARCHIVE_COMPRESSION_XZ
 .Dv ARCHIVE_FILTER_XZ
 .It Dv ARCHIVE_COMPRESSION_UU
 .Dv ARCHIVE_FILTER_UU
 .It Dv ARCHIVE_COMPRESSION_RPM
 .Dv ARCHIVE_FILTER_RPM
 .It Dv ARCHIVE_COMPRESSION_LZIP
 .Dv ARCHIVE_FILTER_LZIP
 .\"
 .It Dv ARCHIVE_BYTES_PER_RECORD
 .Li 512
 .It Dv ARCHIVE_DEFAULT_BYTES_PER_BLOCK
 .Li 10240
 .El
 .Sh SEE ALSO
 .Xr libarchive 3 ,
 .Xr archive_read 3 ,
 .Xr archive_read_filter 3 ,
 .Xr archive_read_format 3 ,
 .Xr archive_read_set_options 3 ,
 .Xr archive_write 3 ,
 .Xr archive_write_filter 3 ,
 .Xr archive_write_format 3 ,
 .Xr archive_write_set_options 3 ,
 .Xr archive_util 3
	.\" Copyright (c) 2011 Tim Kientzle
	.\" All rights reserved.
	.\"
	.\" Redistribution and use in source and binary forms, with or without
	.\" modification, are permitted provided that the following conditions
	.\" are met:
	.\" 1. Redistributions of source code must retain the above copyright
	.\" notice, this list of conditions and the following disclaimer.
	.\" 2. Redistributions in binary form must reproduce the above copyright
	.\" notice, this list of conditions and the following disclaimer in the
	.\" documentation and/or other materials provided with the distribution.
	.\"
	.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	.\" SUCH DAMAGE.
	.\"
	.\" $FreeBSD$
	.\"
	.Dd December 23, 2011
	.Dt LIBARCHIVE_CHANGES 3
	.Os
	.Sh NAME
	.Nd changes in libarchive interface
	.\"
	.Sh CHANGES IN LIBARCHIVE 3
	This page describes user-visible changes in libarchive3, and lists
	public functions and other symbols changed, deprecated or removed
	in libarchive3, along with their replacements if any.
	.Pp
	.\"
	.Ss Multiple Filters
	.\"
	Libarchive2 permitted a single (input or output) filter active
	on an archive.
	Libarchive3 extends this into a variable-length stack.
	Where
	.Fn archive_write_set_compression_XXX
	would replace any existing filter,
	.Fn archive_write_add_filter_XXX
	extends the write pipeline with another filter.
	.\"
	.Ss Character Set Handling
	.\"
	Libarchive2 assumed that the local platform uses
	.Tn Unicode
	as the native
	.Tn wchar_t
	encoding, which is true on
	.Tn Windows ,
	modern
	.Tn Linux ,
	and a few other systems, but is certainly not universal.
	As a result, pax format archives were written incorrectly on some
	systems, since pax format requires
	.Tn UTF-8
	and libarchive 2 incorrectly
	assumed that
	.Tn wchar_t
	strings can be easily converted to
	.Tn UTF-8 .
	.Pp
	Libarchive3 uses the standard iconv library to convert between character
	sets and is introducing the notion of a
	.Dq default character set for the archive .
	To support this,
	.Tn archive_entry
	objects can now be bound to a particular archive when they are created.
	The automatic character set conversions performed by
	.Tn archive_entry
	objects when reading and writing filenames, usernames, and other strings
	will now use an appropriate default character set:
	.Pp
	If the
	.Tn archive_entry
	object is bound to an archive, it will use the
	default character set for that archive.
	.Pp
	The platform default character encoding (as returned by
	.Fn nl_langinfo CHARSET )
	will be used if nothing else is specified.
	.Pp
	Libarchive3 also introduces charset options to many of the archive
	readers and writers to control the character set that will be used for
	filenames written in those archives.
	When possible, this will be set automatically based on information in
	the archive itself.
	Combining this with the notion of a default character set for the
	archive should allow you to configure libarchive to read archives from
	other platforms and have the filenames and other information
	transparently converted to the character encoding suitable for your
	application.
	.\"
	.Ss Prototype Changes
	.\"
	These changes break binary compatibility; libarchive3 has a new shared
	library version to reflect these changes.
	The library now uses portable wide types such as
	.Tn int64_t
	instead of less-portable types such as
	.Tn off_t ,
	.Tn gid_t ,
	.Tn uid_t ,
	and
	.Tn ino_t .
	.Pp
	There are a few cases where these changes will affect your source code:
	.Bl -bullet -width ind
	.It
	In some cases, libarchive's wider types will introduce the possibility
	of truncation: for example, on a system with a 16-bit
	.Tn uid_t , you risk having uid
	.Li 65536
	be truncated to uid
	.Li 0 ,
	which can cause serious security problems.
	.It
	Typedef function pointer types will be incompatible.
	For example, if you define custom skip callbacks, you may have to use
	code similar to the following if you want to support building against
	libarchive2 and libarchive3:
	.Bd -literal
	#if ARCHIVE_VERSION_NUMBER < 3000000
	typedef off_t myoff_t;
	#else
	typedef int64_t myoff_t;
	#endif

	myoff_t
	my_skip_function(struct archive a, void v, myoff_t o)
	{
	... implementation ...
	}
	.Ed
	.El
	.Pp
	Affected functions:
	.Pp
	.Bl -bullet -compact
	.It
	.Xo
	.Fn archive_entry_gid ,
	.Fn archive_entry_set_gid
	.Xc
	.It
	.Xo
	.Fn archive_entry_uid ,
	.Fn archive_entry_set_uid
	.Xc
	.It
	.Xo
	.Fn archive_entry_ino ,
	.Fn archive_entry_set_ino
	.Xc
	.It
	.Xo
	.Fn archive_read_data_block ,
	.Fn archive_write_data_block
	.Xc
	.It
	.Xo
	.Fn archive_read_disk_gname ,
	.Fn archive_read_disk_uname
	.Xc
	.It
	.Xo
	.Fn archive_read_disk_set_gname_lookup ,
	.Fn archive_read_disk_set_group_lookup ,
	.Fn archive_read_disk_set_uname_lookup ,
	.Fn archive_read_disk_set_user_lookup
	.Xc
	.It
	.Fn archive_skip_callback
	.It
	.Xo
	.Fn archive_read_extract_set_skip_file ,
	.Fn archive_write_disk_set_skip_file ,
	.Fn archive_write_set_skip_file
	.Xc
	.It
	.Xo
	.Fn archive_write_disk_set_group_lookup ,
	.Fn archive_write_disk_set_user_lookup
	.Xc
	.El
	.Pp
	Where these functions or their arguments took or returned
	.Tn gid_t ,
	.Tn ino_t ,
	.Tn off_t ,
	or
	.Tn uid_t
	they now take or return
	.Tn int64_t
	or equivalent.
	.\"
	.Ss Deprecated Symbols
	.\"
	Symbols deprecated in libarchive3 will be removed in libarchive4.
	These symbols, along with their replacements if any, are listed below:
	.\"
	.Bl -tag -width ind
	.It Fn archive_position_compressed , Fn archive_position_uncompressed
	.Fn archive_filter_bytes
	.It Fn archive_compression
	.Fn archive_filter_code
	.It Fn archive_compression_name
	.Fn archive_filter_name
	.It Fn archive_read_finish , Fn archive_write_finish
	.Fn archive_read_free ,
	.Fn archive_write_free
	.It Fn archive_read_open_file , Fn archive_write_open_file
	.Fn archive_read_open_filename ,
	.Fn archive_write_open_filename
	.It Fn archive_read_support_compression_all
	.\" archive_read_support_compression_* -> archive_read_support_filter_*
	.Fn archive_read_support_filter_all
	.It Fn archive_read_support_compression_bzip2
	.Fn archive_read_support_filter_bzip2
	.It Fn archive_read_support_compression_compress
	.Fn archive_read_support_filter_compress
	.It Fn archive_read_support_compression_gzip
	.Fn archive_read_support_filter_gzip
	.It Fn archive_read_support_compression_lzip
	.Fn archive_read_support_filter_lzip
	.It Fn archive_read_support_compression_lzma
	.Fn archive_read_support_filter_lzma
	.It Fn archive_read_support_compression_none
	.Fn archive_read_support_filter_none
	.It Fn archive_read_support_compression_program
	.Fn archive_read_support_filter_program
	.It Fn archive_read_support_compression_program_signature
	.Fn archive_read_support_filter_program_signature
	.It Fn archive_read_support_compression_rpm
	.Fn archive_read_support_filter_rpm
	.It Fn archive_read_support_compression_uu
	.Fn archive_read_support_filter_uu
	.It Fn archive_read_support_compression_xz
	.Fn archive_read_support_filter_xz
	.\" archive_write_set_compression_* -> archive_write_add_filter_*
	.It Fn archive_write_set_compression_bzip2
	.Fn archive_write_add_filter_bzip2
	.It Fn archive_write_set_compression_compress
	.Fn archive_write_add_filter_compress
	.It Fn archive_write_set_compression_gzip
	.Fn archive_write_add_filter_gzip
	.It Fn archive_write_set_compression_lzip
	.Fn archive_write_add_filter_lzip
	.It Fn archive_write_set_compression_lzma
	.Fn archive_write_add_filter_lzma
	.It Fn archive_write_set_compression_none
	.Fn archive_write_add_filter_none
	.It Fn archive_write_set_compression_program
	.Fn archive_write_add_filter_program
	.It Fn archive_write_set_compression_filter
	.Fn archive_write_add_filter_filter
	.El
	.\"
	.Ss Removed Symbols
	.\"
	These symbols, listed below along with their replacements if any,
	were deprecated in libarchive2, and are not part of libarchive3.
	.\"
	.Bl -tag -width ind
	.It Fn archive_api_feature
	.Fn archive_version_number
	.It Fn archive_api_version
	.Fn archive_version_number
	.It Fn archive_version
	.Fn archive_version_string
	.It Fn archive_version_stamp
	.Fn archive_version_number
	.It Fn archive_read_set_filter_options
	.Fn archive_read_set_options
	or
	.Fn archive_read_set_filter_option
	.It Fn archive_read_set_format_options
	.Fn archive_read_set_options
	or
	.Fn archive_read_set_format_option
	.It Fn archive_write_set_filter_options
	.Fn archive_write_set_options
	or
	.Fn archive_write_set_filter_option
	.It Fn archive_write_set_format_options
	.Fn archive_write_set_options
	or
	.Fn archive_write_set_format_option
	.It Dv ARCHIVE_API_FEATURE
	.Dv ARCHIVE_VERSION_NUMBER
	.It Dv ARCHIVE_API_VERSION
	.Dv ARCHIVE_VERSION_NUMBER
	.It Dv ARCHIVE_VERSION_STAMP
	.Dv ARCHIVE_VERSION_NUMBER
	.It Dv ARCHIVE_LIBRARY_VERSION
	.Dv ARCHIVE_VERSION_STRING
	.\"
	.It Dv ARCHIVE_COMPRESSION_NONE
	.Dv ARCHIVE_FILTER_NONE
	.It Dv ARCHIVE_COMPRESSION_GZIP
	.Dv ARCHIVE_FILTER_GZIP
	.It Dv ARCHIVE_COMPRESSION_BZIP2
	.Dv ARCHIVE_FILTER_BZIP2
	.It Dv ARCHIVE_COMPRESSION_COMPRESS
	.Dv ARCHIVE_FILTER_COMPRESS
	.It Dv ARCHIVE_COMPRESSION_PROGRAM
	.Dv ARCHIVE_FILTER_PROGRAM
	.It Dv ARCHIVE_COMPRESSION_LZMA
	.Dv ARCHIVE_FILTER_LZMA
	.It Dv ARCHIVE_COMPRESSION_XZ
	.Dv ARCHIVE_FILTER_XZ
	.It Dv ARCHIVE_COMPRESSION_UU
	.Dv ARCHIVE_FILTER_UU
	.It Dv ARCHIVE_COMPRESSION_RPM
	.Dv ARCHIVE_FILTER_RPM
	.It Dv ARCHIVE_COMPRESSION_LZIP
	.Dv ARCHIVE_FILTER_LZIP
	.\"
	.It Dv ARCHIVE_BYTES_PER_RECORD
	.Li 512
	.It Dv ARCHIVE_DEFAULT_BYTES_PER_BLOCK
	.Li 10240
	.El
	.Sh SEE ALSO
	.Xr libarchive 3 ,
	.Xr archive_read 3 ,
	.Xr archive_read_filter 3 ,
	.Xr archive_read_format 3 ,
	.Xr archive_read_set_options 3 ,
	.Xr archive_write 3 ,
	.Xr archive_write_filter 3 ,
	.Xr archive_write_format 3 ,
	.Xr archive_write_set_options 3 ,
	.Xr archive_util 3