* Close file on invalid range.
* Close on seek error
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Moved 'Seek' into server.
* io.ReadSeekCloser is only available in Go 1.16
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>