merge soc07 r4798 - Attempts to connect to a hosts finger service and extracts a list of usernames

scripts/finger.nse

@@ -0,0 +1,44 @@
+id="Finger Results"
+
+description="attempts to get a list of usernames via the finger service"
+
+author = "Eddie Bell <ejlbell@gmail.com>"
+
+license = "See nmaps COPYING for licence"
+
+categories = {"discovery"}
+
+portrule = function(host, port)
+	if 	(port.number == 79 
+		or port.service == "finger")
+		and port.protocol == "tcp"
+		and port.state == "open"
+	then
+		return true
+	else
+		return false
+	end
+end
+
+action = function(host, port)
+	local socket = nmap.new_socket()
+	local results = ""
+	local status = true
+
+	local err_catch = function()
+		socket:close()
+	end
+
+	local try = nmap.new_try(err_catch())
+
+	socket:set_timeout(5000)
+	try(socket:connect(host.ip, port.number, port.protocol))
+       	try(socket:send("\n\r"))
+
+	status, results = socket:receive_lines(100)
+	socket:close()
+
+	if status then
+		return results
+	end
+end