r11113 - prelude-correlator/trunk/plugins/lua/ruleset

Author: yoann
Date: 2009-04-03 16:45:24 +0200 (Fri, 03 Apr 2009)
New Revision: 11113

Modified:
   prelude-correlator/trunk/plugins/lua/ruleset/dshield.lua
Log:
Re-implement normalize_ip() using string.format(). This speedup and simplify
the function greatly.

Modified: prelude-correlator/trunk/plugins/lua/ruleset/dshield.lua
===================================================================
--- prelude-correlator/trunk/plugins/lua/ruleset/dshield.lua	2009-04-03 14:45:20 UTC (rev 11112)
+++ prelude-correlator/trunk/plugins/lua/ruleset/dshield.lua	2009-04-03 14:45:24 UTC (rev 11113)
@@ -32,28 +32,13 @@
 
 
 
-function make_zeroed_str(quad)
-        if tonumber(quad) < 100 and tonumber(quad) >= 10 then
-                return "0" .. quad
-        end
-        if tonumber(quad) < 10 then
-                return "00" .. quad
-        end
-
-        return quad
+function normalize_ip(ipaddr)
+        quads = string.split(ipaddr, ".")
+        return string.format("%.3d.%.3d.%.3d.%.3d", quads[1], quads[2], quads[3], quads[4])
 end
 
-function normalize_ip(ipaddr)
-        quads = string.split(ipaddr,".")
 
-        q1 = make_zeroed_str(quads[0])
-        q2 = make_zeroed_str(quads[1])
-        q3 = make_zeroed_str(quads[2])
-        q4 = make_zeroed_str(quads[3])
 
-        return q1 .. "." .. q2 .. "." .. q3 .. "." .. q4
-end
-
 function dshield(INPUT)
 
 io.input("/etc/prelude-correlator/ipsascii.html")

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