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local nmap = require "nmap"
local stdnse = require "stdnse"
local string = require "string"
local table = require "table"
local target = require "target"
description = [[
Resolves hostnames and adds every address (IPv4 or IPv6, depending on
Nmap mode) to Nmap's target list. This differs from Nmap's normal
host resolution process, which only scans the first address (A or AAAA
record) returned for each host name.
]]
---
-- @usage
-- nmap --script=resolveall --script-args=newtargets,resolveall.hosts={<host1>, ...} ...
-- @args resolveall.hosts Table of hosts to resolve
-- @output
-- Pre-scan script results:
-- | resolveall:
-- | Host 'google.com' resolves to:
-- | 74.125.39.106
-- | 74.125.39.147
-- | 74.125.39.99
-- | 74.125.39.103
-- | 74.125.39.105
-- | 74.125.39.104
-- |_ Successfully added 6 new targets
author = "Kris Katterjohn"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"safe", "discovery"}
prerule = function()
if not stdnse.get_script_args("resolveall.hosts") then
stdnse.print_debug(3,
"Skipping '%s' %s, 'resolveall.hosts' argument is missing.",
SCRIPT_NAME, SCRIPT_TYPE)
return false
end
return true
end
local addtargets = function(list)
local sum = 0
for _, t in ipairs(list) do
local st, err = target.add(t)
if st then
sum = sum + 1
else
stdnse.print_debug("Couldn't add target " .. t .. ": " .. err)
end
end
return sum
end
action = function()
local hosts = stdnse.get_script_args("resolveall.hosts")
if type(hosts) ~= "table" then
hosts = {hosts}
end
local sum, output = 0, {}
for _, host in ipairs(hosts) do
local status, list = nmap.resolve(host, nmap.address_family())
if status and #list > 0 then
if target.ALLOW_NEW_TARGETS then
sum = sum + addtargets(list)
end
table.insert(output,
string.format("Host '%s' resolves to:", host))
table.insert(output, list)
end
end
if sum > 0 then
table.insert(output,
string.format("Successfully added %d new targets",
tostring(sum)))
else
table.insert(output, "Use the 'newtargets' script-arg to add the results as targets")
end
return stdnse.format_output(true, output)
end