Re: nmap 5.20 problem with script engine

[Patrick Donnelly <batrick () batbytes com>]

On Thu, Jan 21, 2010 at 4:47 AM, Onur Küçük <onur () delipenguen net> wrote:
>  Hello,
>
>  I have installed 5.20 from the tarball (compiled without zenmap) but
> have trouble with the script engine
>
>
> # nmap -v -sV 192.168.2.2
>
> Starting Nmap 5.20 ( http://nmap.org ) at 2010-01-21 11:40 EET
> NSE: failed to initialize the script engine:
> /usr/share/nmap/nse_main.lua:97: attempt to call a boolean value
> stack traceback:
>        /usr/share/nmap/nse_main.lua:97: in main chunk
>        [C]: ?
>
> QUITTING!
>
>
> where the hit happens at the strict checking
>
>
> # head -n 100 /usr/share/nmap/nse_main.lua |tail -n 10
>  assert(t == "directory", "could not locate nselib directory!");
>  package.path = package.path..";"..path.."?.lua";
> end
>
> local stdnse = require "stdnse";
>
> (require "strict")() -- strict global checking
>
> -- NSE_YIELD_VALUE
> -- This is the table C uses to yield a thread with a unique value to
>
>
>  I am not familiar with lua so I don't know where the problem is. I am
> using lua 5.1.4 of my Linux distro Pardus. Nmap 5.00 works fine here.
>
>  What may be the problem, and better, how can I fix it ? I can provide
> any info necessary.

Problem is your distribution is apparently installing the original
strict.lua script (included in the Lua sources). We need to force Lua
to always load our version first:

batrick@batbytes:~/nmap/svn/nmap$ svn diff nse_main.lua
Index: nse_main.lua
===================================================================
--- nse_main.lua        (revision 16447)
+++ nse_main.lua        (working copy)
@@ -89,7 +89,7 @@
 do -- Append the nselib directory to the Lua search path
   local t, path = assert(cnse.fetchfile_absolute("nselib/"));
   assert(t == "directory", "could not locate nselib directory!");
-  package.path = package.path..";"..path.."?.lua";
+  package.path = path.."?.lua;"..package.path;
 end

 local stdnse = require "stdnse";



-- 
-Patrick Donnelly

"Let all men know thee, but no man know thee thoroughly: Men freely
ford that see the shallows."

- Benjamin Franklin
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