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+local comm = require "comm"
+local shortport = require "shortport"
+local oops = require "oops"
+
+description = [[
+Retrieves the day and time from the Daytime service.
+]]
+
+---
+-- @output
+-- PORT STATE SERVICE
+-- 13/tcp open daytime
+-- |_daytime: Wed Mar 31 14:48:58 MDT 2010
+
+author = "Diman Todorov"
+
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+
+categories = {"discovery", "safe"}
+
+
+portrule = shortport.port_or_service(13, "daytime", {"tcp", "udp"})
+
+action = function(host, port)
+ return oops.output(comm.exchange(host, port, "dummy", {lines=1}))
+end