.\" Automatically generated from an mdoc input file.  Do not edit.
.\" zip_file_set_comment.mdoc -- set comment for file in zip
.\" Copyright (C) 2006-2017 Dieter Baron and Thomas Klausner
.\"
.\" This file is part of libzip, a library to manipulate ZIP files.
.\" The authors can be contacted at <libzip@nih.at>
.\"
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.TH "ZIP_FILE_SET_COMMENT" "3" "September 22, 2020" "NiH" "Library Functions Manual"
.nh
.if n .ad l
.SH "NAME"
\fBzip_file_set_comment\fR
\- set comment for file in zip
.SH "LIBRARY"
libzip (-lzip)
.SH "SYNOPSIS"
\fB#include <zip.h>\fR
.sp
\fIint\fR
.br
.PD 0
.HP 4n
\fBzip_file_set_comment\fR(\fIzip_t\ *archive\fR, \fIzip_uint64_t\ index\fR, \fIconst\ char\ *comment\fR, \fIzip_uint16_t\ len\fR, \fIzip_flags_t\ flags\fR);
.PD
.SH "DESCRIPTION"
The
\fBzip_file_set_comment\fR()
function sets the comment for the file at position
\fIindex\fR
in the zip archive to
\fIcomment\fR
of length
\fIlen\fR.
If
\fIcomment\fR
is
\fRNULL\fR
and
\fIlen\fR
is 0, the file comment will be removed.
The
\fIflags\fR
argument can be any of:
.TP 22n
\fRZIP_FL_ENC_GUESS\fR
Guess encoding of
\fIcomment\fR
(default).
(Only CP-437 and UTF-8 are recognized.)
.TP 22n
\fRZIP_FL_ENC_UTF_8\fR
Interpret
\fIcomment\fR
as UTF-8.
.TP 22n
\fRZIP_FL_ENC_CP437\fR
Interpret
\fIcomment\fR
as code page 437 (CP-437).
.SH "RETURN VALUES"
Upon successful completion 0 is returned.
Otherwise, \-1 is returned and the error information in
\fIarchive\fR
is set to indicate the error.
.SH "ERRORS"
\fBzip_file_set_comment\fR()
fails if:
.TP 19n
[\fRZIP_ER_INVAL\fR]
\fIindex\fR
is not a valid file index in
\fIarchive\fR,
or
\fIlen\fR
is less than 0 or longer than the maximum comment length in a zip file
(65535), or
\fIcomment\fR
is not a valid UTF-8 encoded string.
.TP 19n
[\fRZIP_ER_MEMORY\fR]
Required memory could not be allocated.
.TP 19n
[\fRZIP_ER_RDONLY\fR]
The
\fIarchive\fR
was opened in read-only mode.
.SH "SEE ALSO"
libzip(3),
zip_file_get_comment(3),
zip_get_archive_comment(3),
zip_set_archive_comment(3)
.SH "HISTORY"
\fBzip_file_set_comment\fR()
was added in libzip 0.11.
.SH "AUTHORS"
Dieter Baron <\fIdillo@nih.at\fR>
and
Thomas Klausner <\fItk@giga.or.at\fR>