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Use string packing instead of bitwise operators in ipOps.lua

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dmiller
2017-03-09 05:13:45 +00:00
parent 5fe8df548d
commit a2e22523a4
1 changed files with 1 additions and 9 deletions
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10
nselib/ipOps.lua
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@@ -3,8 +3,6 @@
--
-- @copyright Same as Nmap--See https://nmap.org/book/man-legal.html
local bin = require "bin"
local bit = require "bit"
local stdnse = require "stdnse"
local string = require "string"
local table = require "table"
@@ -163,13 +161,7 @@ fromdword = function( ip )
stdnse.debug1("Error in ipOps.fromdword: Expected 32-bit number.")
return nil
end
local n1 = bit.band(bit.rshift(ip, 0), 0x000000FF)
local n2 = bit.band(bit.rshift(ip, 8), 0x000000FF)
local n3 = bit.band(bit.rshift(ip, 16), 0x000000FF)
local n4 = bit.band(bit.rshift(ip, 24), 0x000000FF)
return string.format("%d.%d.%d.%d", n1, n2, n3, n4)
return string.format("%d.%d.%d.%d", string.unpack("BBBB", string.pack(">I4", ip)))
end
---