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Normalize indentation in dns-recursion.nse.

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david
2010-05-03 15:16:10 +00:00
parent 3cc34c37ee
commit 52400c1f88
1 changed files with 8 additions and 9 deletions
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17
scripts/dns-recursion.nse
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@@ -1,4 +1,3 @@
description = [[ description = [[
Checks if a DNS server allows queries for third-party names. Checks if a DNS server allows queries for third-party names.
@@ -26,20 +25,20 @@ portrule = shortport.portnumber(53, "udp")
action = function(host, port) action = function(host, port)
-- generate dns query, Transaction-ID 0xdead, www.wikipedia.org (type A, class IN) -- generate dns query, Transaction-ID 0xdead, www.wikipedia.org (type A, class IN)
local request = string.char(0xde, 0xad, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03) .. "www" .. string.char(0x09) .. "wikipedia" .. string.char(0x03) .. "org" .. string.char(0x00, 0x00, 0x01, 0x00, 0x01) local request = string.char(0xde, 0xad, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03) .. "www" .. string.char(0x09) .. "wikipedia" .. string.char(0x03) .. "org" .. string.char(0x00, 0x00, 0x01, 0x00, 0x01)
local status, result = comm.exchange(host, port, request, {proto="udp"}) local status, result = comm.exchange(host, port, request, {proto="udp"})
if not status then if not status then
return return
end end
-- parse response for dns flags -- parse response for dns flags
if (bit.band(string.byte(result,3), 0x80) == 0x80 if (bit.band(string.byte(result,3), 0x80) == 0x80
and bit.band(string.byte(result,4), 0x85) == 0x80) and bit.band(string.byte(result,4), 0x85) == 0x80)
then then
return "Recursion appears to be enabled" return "Recursion appears to be enabled"
end end
return return
end end