# Read all the stream until the eof.
	#
	# The content of the file is returned verbatim.
	fun read_all_bytes: Bytes
	do
		if last_error != null then return new Bytes.empty
		var s = new Bytes.empty
		var buf = new CString(4096)
		while not eof do
			var rd = read_bytes_to_cstring(buf, 4096)
			s.append_ns(buf, rd)
		end
		return s
	end