.\" Automatically generated from an mdoc input file.  Do not edit.
.\" zip_source_window.mdoc -- create zip data source overlay
.\" Copyright (C) 2021 Dieter Baron and Thomas Klausner
.\"
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.TH "ZIP_SOURCE_WINDOW" "3" "April 29, 2021" "NiH" "Library Functions Manual"
.nh
.if n .ad l
.SH "NAME"
\fBzip_source_window_create\fR
\- create zip data source overlay
.SH "LIBRARY"
libzip (-lzip)
.SH "SYNOPSIS"
\fB#include <zip.h>\fR
.sp
\fIzip_source_t *\fR
.br
.PD 0
.HP 4n
\fBzip_source_window_create\fR(\fIzip_source_t\ *source\fR, \fIzip_uint64_t\ start\fR, \fIzip_int64_t\ len\fR, \fIzip_error_t\ *error\fR);
.PD
.SH "DESCRIPTION"
The
\fBzip_source_window_create\fR()
function create a zip source from an underlying zip source,
restricting access to a particular window starting at byte
\fIstart\fR
and having size
\fIlen\fR.
If
\fIlen\fR
is \-1, the window spans to the end of the underlying source.
.SH "RETURN VALUES"
Upon successful completion, the created source is returned.
Otherwise,
\fRNULL\fR
is returned and the error code in
\fIerror\fR
is set to indicate the error.
.SH "ERRORS"
\fBzip_source_window_create\fR()
fails if:
.TP 19n
[\fRZIP_ER_INVAL\fR]
\fIsrc\fR
is
\fRNULL\fR;
there is an integer overflow adding
\fIstart\fR
and
\fIlen\fR;
or
\fIlen\fR
is less than \-1.
.TP 19n
[\fRZIP_ER_MEMORY\fR]
Required memory could not be allocated.
.SH "SEE ALSO"
libzip(3),
zip_source(3)
zip_source(3)
.SH "HISTORY"
\fBzip_source_window_create\fR()
was added in libzip 1.8.0.
.SH "AUTHORS"
Dieter Baron <\fIdillo@nih.at\fR>
and
Thomas Klausner <\fItk@giga.or.at\fR>