.\" Automatically generated from an mdoc input file.  Do not edit.
.\" zip_fseek.mdoc -- seek in file
.\" Copyright (C) 2016-2017 Dieter Baron and Thomas Klausner
.\"
.\" This file is part of libzip, a library to manipulate ZIP archives.
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.TH "ZIP_FSEEK" "3" "November 13, 2021" "NiH" "Library Functions Manual"
.nh
.if n .ad l
.SH "NAME"
\fBzip_fseek\fR,
\fBzip_file_is_seekable\fR
\- seek in file
.SH "LIBRARY"
libzip (-lzip)
.SH "SYNOPSIS"
\fB#include <zip.h>\fR
.sp
\fIzip_int8_t\fR
.br
.PD 0
.HP 4n
\fBzip_fseek\fR(\fIzip_file_t\ *file\fR, \fIzip_int64_t\ offset\fR, \fIint\ whence\fR);
.PD
.PP
\fIint\fR
.br
.PD 0
.HP 4n
\fBzip_file_is_seekable\fR(\fIzip_file_t\ *file\fR);
.PD
.SH "DESCRIPTION"
The
\fBzip_fseek\fR()
function seeks to the specified
\fIoffset\fR
relative to
\fIwhence\fR,
just like
fseek(3).
.PP
\fBzip_fseek\fR
only works on uncompressed (stored), unencrypted data.
When called on compressed or encrypted data it will return an error.
.PP
The
\fBzip_file_is_seekable\fR()
function returns 1 if a file is seekable.
.SH "RETURN VALUES"
If successful,
\fBzip_fseek\fR()
returns 0.
Otherwise, \-1 is returned.
.PP
\fBzip_file_is_seekable\fR()
returns 1 if a file is seekable and 0 if not.
On an invalid argument, it returns \-1.
.SH "SEE ALSO"
libzip(3),
zip_fclose(3),
zip_fopen(3),
zip_fread(3),
zip_ftell(3)
.SH "HISTORY"
\fBzip_fseek\fR()
was added in libzip 1.2.0.
\fBzip_file_is_seekable\fR()
was added in libzip 1.9.0.
.SH "AUTHORS"
Dieter Baron <\fIdillo@nih.at\fR>
and
Thomas Klausner <\fItk@giga.or.at\fR>