Re: [NSE] Dropbox LanSync host collection

[Patrik Karlsson <patrik () cqure net>]

On 14 jan 2011, at 17.46, Andrew Orr wrote:

> Usage/output patch attached as requested. Note this is against the current script in svn.
>
> On a side note - while we were working on this script (and just now when I was testing it again) we ran into the 
> problem of trying to bind to a port already in use - ie if you're running the dropbox client on the system you're 
> scanning from. You can see this in the debug output (-d3) but IIRC we couldn't figure out a way to catch this from 
> NSE and display a decent error message.

I just looked at this and as far as I can tell the problem occurs as the real bind isn't performed until a send or 
receive operation is called on the unconnected UDP socket.
The bind call simply populates the socket parameters so that they contain the correct values once the real bind is 
called. I'm not really sure of how to handle/fix this.

> Debug output is: NSOCK (0.0820s) Bind to 0.0.0.0 failed (IOD #1)
>
> In this case, the nmap.new_socket("udp").bind() call is returning a true status in this case when it seemingly should 
> be false. Anyone encounter this before?
>
> On another side note, at our next hackathon (Saturday) we're baking cupcakes for [1]. If only nmap scripts were as 
> tasty as cupcakes :P.
>
> Cheers,
> -Andrew
>
> [1] http://hackerspaces.org/wiki/Global_Hackerspace_Cupcake_Challenge
>
> On 11-01-14 12:33 AM, Fyodor wrote:
> > On Mon, Dec 13, 2010 at 06:30:49PM -0600, Mak Kolybabi wrote:
> > > Yesterday we had the first of (hopefully) many hackathons here in Winnipeg. We
> > > decided to write a bunch of Nmap scripts as our activity. Attached is the first
> > > of these scripts, submitted for (hopefully) inclusion into Nmap. More will
> > > follow.
> >
> > This looks great, and David has checked it in.  But can someone add
> > (or send me a patch for) @output information to this script for the
> > NSEDoc?  I think adding @usage is a good idea too, since the
> > auto-generated default usage at
> > http://nmap.org/nsedoc/scripts/broadcast-dropbox-listener.html isn't
> > reall appropriate for this script (you don't really need to specify
> > targets).  Also, it would be great if the description mentioned that
> > it can optionally add discovered dropbox IPs to the Nmap target list
> > (with --newtargets).  Maybe that could be one of the examples in the
> > new @usage section.
> >
> > Actually I just updated the description a bit, but @output and @usage
> > would still be very nice.
> >
> > I'm going through all the new scripts (45 of them! Wow!) to document
> > the upcoming release.
> >
> > I hope you have more Nmap hackathons!
> >
> > Cheers,
> > Fyodor
> <broadcast-dropbox-listener.nse.patch>_______________________________________________
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//Patrik
--
Patrik Karlsson
http://www.cqure.net
http://www.twitter.com/nevdull77





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