.\" zip_get_file_comment.mdoc -- get comment for file in zip
.\" Copyright (C) 2006 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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.Dd April 23, 2006
.Dt ZIP_GET_FILE_COMMENT 3
.Os
.Sh NAME
.Nm zip_get_file_comment
.Nd get comment for file in zip
.Sh LIBRARY
libzip (-lzip)
.Sh SYNOPSIS
.In zip.h
.Ft const char *
.Fn zip_get_file_comment "struct zip *archive" "int index" "int *lenp" "int flags"
.Sh DESCRIPTION
The
.Fn zip_get_file_comment
function returns the comment for the file at position
.Ar index
in the zip archive.
This pointer should not be modified or
.Xr free 3 Ap d .
If
.Ar lenp
is not
.Dv NULL ,
the integer to which it points will be set to the length of the
comment.
If
.Ar flags
is set to
.Dv ZIP_FL_UNCHANGED ,
the original unchanged comment is returned.
.Sh RETURN VALUES
Upon successful completion, a pointer to the comment is returned,
or
.Dv NULL
if there is no comment.
In case of an error,
.Dv NULL
is returned and the error code in
.Ar archive
is set to indicate the error.
.Sh ERRORS
.Fn zip_get_file_comment
fails if:
.Bl -tag -width Er
.It Bq Er ZIP_ER_INVAL
.Ar index
is not a valid file index in
.Ar archive .
.Sh SEE ALSO
.Xr libzip 3 ,
.Xr zip_get_archive_comment 3
.Sh AUTHORS
.An -nosplit
.An Dieter Baron Aq dillo@giga.or.at
and
.An Thomas Klausner Aq tk@giga.or.at