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Faster RPC number lookup

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dmiller
2022-09-29 22:19:28 +00:00
parent d81ead72dc
commit 32eaa828b7
1 changed files with 5 additions and 7 deletions
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12
nselib/rpc.lua
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@@ -82,6 +82,7 @@ local nmap = require "nmap"
local stdnse = require "stdnse" local stdnse = require "stdnse"
local string = require "string" local string = require "string"
local table = require "table" local table = require "table"
local tableaux = require "tableaux"
_ENV = stdnse.module("rpc", stdnse.seeall) _ENV = stdnse.module("rpc", stdnse.seeall)
-- Version 0.3 -- Version 0.3
@@ -114,7 +115,7 @@ local RPC_PROTOCOLS = (nmap.registry.args and nmap.registry.args[RPC_args['rpcbi
nmap.registry.args[RPC_args['rpcbind'].proto] or { "tcp", "udp" } nmap.registry.args[RPC_args['rpcbind'].proto] or { "tcp", "udp" }
-- used to cache the contents of the rpc datafile -- used to cache the contents of the rpc datafile
local RPC_PROGRAMS local RPC_PROGRAMS, RPC_NUMBERS
-- local mutex to synchronize I/O operations on nmap.registry[host.ip]['portmapper'] -- local mutex to synchronize I/O operations on nmap.registry[host.ip]['portmapper']
local mutex = nmap.mutex("rpc") local mutex = nmap.mutex("rpc")
@@ -3450,13 +3451,10 @@ Util =
return return
end end
end end
for num, name in pairs(RPC_PROGRAMS) do if not RPC_NUMBERS then
if ( prog_name == name ) then RPC_NUMBERS = tableaux.invert(RPC_PROGRAMS)
return num
end
end end
return RPC_NUMBERS[prog_name]
return
end, end,
--- Converts the RPC program number to its equivalent name --- Converts the RPC program number to its equivalent name