.\" Converted with mdoc2man 0.2
.\" from NiH: zip_unchange.mdoc,v 1.7 2005/06/09 18:50:27 wiz Exp 
.\" $NiH: zip_unchange.mdoc,v 1.7 2005/06/09 18:50:27 wiz Exp $
.\"
.\" zip_unchange.mdoc \-- undo changes to file in zip archive
.\" Copyright (C) 2003 Dieter Baron and Thomas Klausner
.\"
.\" This file is part of libzip, a library to manipulate ZIP archives.
.\" The authors can be contacted at <nih@giga.or.at>
.\"
.\" 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.
.\" 3. The names of the authors may not be used to endorse or promote
.\"    products derived from this software without specific prior
.\"    written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
.\"
.TH ZIP_UNCHANGE 3 "November 30, 2004" NiH
.SH "NAME"
zip_unchange \- undo changes to file in zip archive
.SH "LIBRARY"
libzip (-lzip)
.SH "SYNOPSIS"
.In zip.h
.Ft int
.Fn zip_unchange "struct zip *archive" "int index"
.SH "DESCRIPTION"
Changes to the file at position
\fBindex\fR
are reverted.
.SH "RETURN VALUES"
Upon successful completion 0 is returned.
Otherwise, \-1 is returned and the error code in
\fBarchive\fR
is set to indicate the error.
.SH "ERRORS"
.Fn zip_unchange
fails if:
.RS
.TP 4
Bq Er ZIP_ER_EXISTS
Unchanging the name would result in a duplicate name in the archive.
.TP 4
Bq Er ZIP_ER_INVAL
\fBindex\fR
is not a valid file index in
\fBzip.\fR
.\: XXX: also ch_func ZIP_CMD_CLOSE errors
.RE
.SH "SEE ALSO"
libzip(3),
zip_unchange_all(3)