nmap.bind to set NSE socket source address

[David Fifield <david () bamsoftware com>]

On Sat, Aug 29, 2009 at 08:46:39PM -0500, Ron wrote:
> I'm trying to implement a script to send/receive DHCP Inform requests.  
> And, it almost works, except for two problems that I don't know how to  
> resolve.
>
> I know these can both be fixed using raw sockets, but I'd really like to  
> avoid that.
>
> First, I need to set my source port to UDP/68 for these transactions. I  
> don't see any way to do that using the connect() function. I realize  
> that UDP/68 is reserved so r00t is required, but -sU requires root 
> anyways.

Ron, I added the function nmap.bind in r15813. In the DHCP script you
will use it like this:

        try(socket:bind(nil, 68))

Let me know if it provides what you need.

David Fifield

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