def putbinaryfile(localfile, remotefile = File.basename(localfile),
		      blocksize = DEFAULT_BLOCKSIZE, &block) # :yield: data
      if @resume
        begin
          rest_offset = size(remotefile)
        rescue Net::FTPPermError
          rest_offset = nil
        end
      else
	rest_offset = nil
      end
      f = open(localfile)
      begin
	f.binmode
	storbinary("STOR " + remotefile, f, blocksize, rest_offset, &block)
      ensure
	f.close
      end
    end
def putbinaryfile(localfile, remotefile = File.basename(localfile),
		      blocksize = DEFAULT_BLOCKSIZE, &block) # :yield: data
      if @resume
        begin
          rest_offset = size(remotefile)
        rescue Net::FTPPermError
          rest_offset = nil
        end
      else
	rest_offset = nil
      end
      f = open(localfile)
      begin
	f.binmode
	storbinary("STOR " + remotefile, f, blocksize, rest_offset, &block)
      ensure
	f.close
      end
    end
Transfers +localfile+ to the server in binary mode, storing the result in
 +remotefile+. If a block is supplied, calls it, passing in the transmitted
 data in +blocksize+ chunks.