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local bitcoin = require "bitcoin"
local shortport = require "shortport"
local stdnse = require "stdnse"
local table = require "table"
description = [[
Extracts version and node information from a Bitcoin server
]]
---
-- @usage
-- nmap -p 8333 --script bitcoin-info <ip>
--
-- @output
-- PORT STATE SERVICE
-- 8333/tcp open unknown
-- | bitcoin-info:
-- | Timestamp: Wed Nov 9 19:47:23 2011
-- | Network: main
-- | Version: 0.4.0
-- | Node Id: DD5DFCBAAD0F882D
-- |_ Lastblock: 152589
--
author = "Patrik Karlsson"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"discovery", "safe"}
--
-- Version 0.1
--
-- Created 11/09/2011 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
--
portrule = shortport.port_or_service(8333, "bitcoin", "tcp" )
action = function(host, port)
local NETWORK = {
[3652501241] = "main",
[3669344250] = "testnet"
}
local bcoin = bitcoin.Helper:new(host, port, { timeout = 10000 })
local status = bcoin:connect()
if ( not(status) ) then
return "\n ERROR: Failed to connect to server"
end
local status, ver = bcoin:exchVersion()
if ( not(status) ) then
return "\n ERROR: Failed to extract version information"
end
bcoin:close()
local result = {}
table.insert(result, ("Timestamp: %s"):format(stdnse.format_timestamp(ver.timestamp)))
table.insert(result, ("Network: %s"):format(NETWORK[ver.magic]))
table.insert(result, ("Version: %s"):format(ver.ver))
table.insert(result, ("Node Id: %s"):format(ver.nodeid))
table.insert(result, ("Lastblock: %s"):format(ver.lastblock))
return stdnse.format_output(true, result)
end