.\" zip_source_filep.mdoc -- create data source from a file stream
.\" Copyright (C) 2004-2014 Dieter Baron and Thomas Klausner
.\"
.\" This file is part of libzip, a library to manipulate ZIP archives.
.\" The authors can be contacted at <libzip@nih.at>
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.Dd August 2, 2014
.Dt ZIP_SOURCE_FILEP 3
.Os
.Sh NAME
.Nm zip_source_filep
.Nd create data source from FILE *
.Sh LIBRARY
libzip (-lzip)
.Sh SYNOPSIS
.Ft zip_source_t *
.Fn zip_source_filep "zip_t *archive" "FILE *file" \
"zip_uint64_t start" "zip_int64_t len"
.Sh DESCRIPTION
The function
.Fn zip_source_filep
creates a zip source from a file stream.
.Fn zip_source_filep
reads
.Ar len
bytes from offset
.Ar start
from the open file stream
.Ar file .
If
.Ar len
is 0 or \-1, the whole file (starting from
.Ar start )
is used.
.Sh RETURN VALUES
Upon successful completion, the created source is returned.
Otherwise,
.Dv NULL
is returned and the error code in
.Ar archive
is set to indicate the error.
.Sh ERRORS
.Fn zip_source_filep
fails if:
.Bl -tag -width Er
.It Bq Er ZIP_ER_INVAL
.Ar file ,
.Ar start ,
or
.Ar len
are invalid.
.It Bq Er ZIP_ER_MEMORY
Required memory could not be allocated.
.El
.Sh SEE ALSO
.Xr libzip 3 ,
.Xr zip_add 3 ,
.Xr zip_replace 3 ,
.Xr zip_source 3
.Sh AUTHORS
.An -nosplit
.An Dieter Baron Aq Mt dillo@nih.at
and
.An Thomas Klausner Aq Mt tk@giga.or.at