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.\" Copyright (c) 2003-2011 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.
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.\" $FreeBSD$
.\"
.Dd August 14, 2014
.Dt ARCHIVE_WRITE_FILTER 3
.Os
.Sh NAME
.Nm archive_write_add_filter_b64encode ,
.Nm archive_write_add_filter_by_name ,
.Nm archive_write_add_filter_bzip2 ,
.Nm archive_write_add_filter_compress ,
.Nm archive_write_add_filter_grzip ,
.Nm archive_write_add_filter_gzip ,
.Nm archive_write_add_filter_lrzip ,
.Nm archive_write_add_filter_lz4 ,
.Nm archive_write_add_filter_lzip ,
.Nm archive_write_add_filter_lzma ,
.Nm archive_write_add_filter_lzop ,
.Nm archive_write_add_filter_none ,
.Nm archive_write_add_filter_program ,
.Nm archive_write_add_filter_uuencode ,
.Nm archive_write_add_filter_xz
.Nd functions enabling output filters
.Sh LIBRARY
Streaming Archive Library (libarchive, -larchive)
.Sh SYNOPSIS
.In archive.h
.Ft int
.Fn archive_write_add_filter_b64encode "struct archive *"
.Ft int
.Fn archive_write_add_filter_bzip2 "struct archive *"
.Ft int
.Fn archive_write_add_filter_compress "struct archive *"
.Ft int
.Fn archive_write_add_filter_grzip "struct archive *"
.Ft int
.Fn archive_write_add_filter_gzip "struct archive *"
.Ft int
.Fn archive_write_add_filter_lrzip "struct archive *"
.Ft int
.Fn archive_write_add_filter_lz4 "struct archive *"
.Ft int
.Fn archive_write_add_filter_lzip "struct archive *"
.Ft int
.Fn archive_write_add_filter_lzma "struct archive *"
.Ft int
.Fn archive_write_add_filter_lzop "struct archive *"
.Ft int
.Fn archive_write_add_filter_none "struct archive *"
.Ft int
.Fn archive_write_add_filter_program "struct archive *" "const char * cmd"
.Ft int
.Fn archive_write_add_filter_uuencode "struct archive *"
.Ft int
.Fn archive_write_add_filter_xz "struct archive *"
.Sh DESCRIPTION
.Bl -tag -width indent
.It Xo
.Fn archive_write_add_filter_bzip2 ,
.Fn archive_write_add_filter_compress ,
.Fn archive_write_add_filter_grzip ,
.Fn archive_write_add_filter_gzip ,
.Fn archive_write_add_filter_lrzip ,
.Fn archive_write_add_filter_lz4 ,
.Fn archive_write_add_filter_lzip ,
.Fn archive_write_add_filter_lzma ,
.Fn archive_write_add_filter_lzop ,
.Fn archive_write_add_filter_xz ,
.Xc
The resulting archive will be compressed as specified.
Note that the compressed output is always properly blocked.
.It Xo
.Fn archive_write_add_filter_b64encode ,
.Fn archive_write_add_filter_uuencode ,
.Xc
The output will be encoded as specified.
The encoded output is always properly blocked.
.It Fn archive_write_add_filter_none
This is never necessary.
It is provided only for backwards compatibility.
.It Fn archive_write_add_filter_program
The archive will be fed into the specified compression program.
The output of that program is blocked and written to the client
write callbacks.
.El
.Sh RETURN VALUES
These functions return
.Cm ARCHIVE_OK
on success, or
.Cm ARCHIVE_FATAL .
.\"
.Sh ERRORS
Detailed error codes and textual descriptions are available from the
.Fn archive_errno
and
.Fn archive_error_string
functions.
.\"
.Sh SEE ALSO
.Xr tar 1 ,
.Xr libarchive 3 ,
.Xr archive_write 3 ,
.Xr archive_write_format 3 ,
.Xr archive_write_set_options 3 ,
.Xr cpio 5 ,
.Xr mtree 5 ,
.Xr tar 5