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Localize functions and variables.

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This commit is contained in:
david
2011-04-20 07:45:12 +00:00
parent 5726c875e9
commit 7880167e48
1 changed files with 9 additions and 10 deletions
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19
scripts/backorifice-info.nse
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@@ -73,12 +73,11 @@ portrule = shortport.port_or_service (31337, "BackOrifice", "udp")
--variables
rand =31337
g_packet = 0
local g_packet = 0
--"constants"
MAGICSTRING ="*!*QWTY?"
TYPE = {
local MAGICSTRING ="*!*QWTY?"
local TYPE = {
ERROR = 0x00,
PARTIAL_PACKET = 0x80,
CONTINUED_PACKET = 0x40,
@@ -94,7 +93,7 @@ TYPE = {
--table of commands which have output
cmds ={
local cmds = {
{cmd_name="PING REPLY",p_code=TYPE.PING,arg1="",arg2="",
filter = function(data)
data = string.gsub(data," ","")
@@ -141,13 +140,13 @@ cmds ={
end}
}
function gen_next_seed(seed)
local function gen_next_seed(seed)
seed = seed*214013 + 2531011
seed = bit.band(seed,0xffffff)
return seed
end
function gen_initial_seed(password)
local function gen_initial_seed(password)
if password == nil then
return 31337
else
@@ -174,7 +173,7 @@ function gen_initial_seed(password)
end
--BOcrypt returns encrypted/decrypted data
function BOcrypt(data, password, initial_seed )
local function BOcrypt(data, password, initial_seed )
local output =""
if data==nil then return end
@@ -205,7 +204,7 @@ function BOcrypt(data, password, initial_seed )
return output
end
function BOpack(type_packet, str1, str2)
local function BOpack(type_packet, str1, str2)
-- create BO packet
local data = ""
local size = #MAGICSTRING + 4*2 + 3 + #str1 + #str2
@@ -214,7 +213,7 @@ function BOpack(type_packet, str1, str2)
return data
end
function BOunpack(packet)
local function BOunpack(packet)
local pos, magic = bin.unpack("A8",packet)
if magic ~= MAGICSTRING then return nul,TYPE.ERROR end --received non-BO packet