broadcast-dropbox-listener script is broken in 6.25 and SVN

[Dhiru Kholia <dhiru.kholia () gmail com>]

Hi,

broadcast-dropbox-listener script is broken in 6.25 and SVN.

Command used:  nmap -d -p17500 --script-trace
--script=broadcast-dropbox-listener --script-args=newtargets -Pn

1. broadcast-dropbox-listener script worked best under Nmap 5.51

Pre-scan script results:
| broadcast-dropbox-listener:
| displayname  ip             port   version  host_int   namespaces
|_429883020    192.168.2.253  17500  1.8      429883020  194083623
Nmap scan report for 192.168.2.253
Host is up (0.0054s latency).
PORT      STATE SERVICE

Newer version like 6.0 don't show "Pre-scan script results" which is
super useful.

2. broadcast-dropbox-listener script works partially under Nmap 6.00

Nmap scan report for 192.168.2.253
Host is up (0.0054s latency).
PORT      STATE SERVICE
17500/tcp open  db-lsp

3. broadcast-dropbox-listener script is broken in 6.25 and SVN
...
NSE: Script Pre-scanning.
NSE: Starting runlevel 1 (of 1) scan.
NSE: Starting broadcast-dropbox-listener.
Initiating NSE at 23:11
NSOCK (0.0470s) nsi_new (IOD #1)
NSOCK (0.0470s) UDP unconnected socket (IOD #1)
NSOCK (0.0620s) Read request from IOD #1 (peer unspecified) (timeout:
40000ms) EID 10
NSE Timing: About 0.00% done
NSOCK (40.0620s) Callback: READ TIMEOUT for EID 10 (peer unspecified)
NSE: N/A unknown protocol:0 > unknown protocol:0 | CLOSE
NSOCK (40.0730s) nsi_delete (IOD #1)
NSE: Finished broadcast-dropbox-listener.
Completed NSE at 23:12, 40.01s elapsed
NSOCK (40.0730s) nsi_new (IOD #2)
NSOCK (40.0730s) UDP unconnected socket (IOD #2)
NSE: N/A unknown protocol:0 > unknown protocol:0 | CLOSE
NSOCK (40.0730s) nsi_delete (IOD #2)

Reverting commit "2404fc7d647" partially fixes the problem and we get
behaviour similar to point 2.

However, it would be best if we could get  "Pre-scan script results"
too. "host_int" value is useful in "hijacking" Dropbox accounts.

-- 
Cheers,
Dhiru
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