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.\" Copyright (c) 2014 Michihiro NAKAJIMA
.\" 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 September 14, 2014
.Dt ARCHIVE_READ_ADD_PASSPHRASE 3
.Os
.Sh NAME
.Nm archive_read_add_passphrase ,
.Nm archive_read_set_passphrase_callback
.Nd functions for reading encrypted archives
.Sh LIBRARY
Streaming Archive Library (libarchive, -larchive)
.Sh SYNOPSIS
.In archive.h
.Ft int
.Fo archive_read_add_passphrase
.Fa "struct archive *"
.Fa "const char *passphrase"
.Fc
.Ft int
.Fo archive_read_set_passphrase_callback
.Fa "struct archive *"
.Fa "void *client_data"
.Fa "archive_passphrase_callback *"
.Fc
.Sh DESCRIPTION
.Bl -tag -width indent
.It Fn archive_read_add_passphrase
Register passphrases for reading an encryption archive.
If
.Ar passphrase
is
.Dv NULL
or empty, this function will do nothing and
.Cm ARCHIVE_FAILED
will be returned.
Otherwise,
.Cm ARCHIVE_OK
will be returned.
.It Fn archive_read_set_passphrase_callback
Register callback function that will be invoked to get a passphrase
for decrption after trying all passphrases registered by the
.Fn archive_read_add_passphrase
function failed.
.El
.\" .Sh ERRORS
.Sh SEE ALSO
.Xr tar 1 ,
.Xr libarchive 3 ,
.Xr archive_read 3 ,
.Xr archive_read_set_options 3
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