# File tar.rb, line 444
444:       def next_entry
445:         @file.pos = @next_entry_at
446: 
447:         @current_entry = Entry.new( @file )
448:         return nil if @current_entry.nil?
449: 
450:         @entries[ @current_entry.name ] = @current_entry
451:         @next_entry_at = @file.pos
452: 
453:         @current_input_stream = @current_entry.get_input_stream
454:         return @current_entry
455:       end