The old behavior (of using the default time of 1s) did not allow constructing
packets without this option, which in turn resulted in (1) DHCPINFORM packets
being non-compliant with RFC 2131 and (2) DHCP discovery scripts potentially
receiving non-default IP lease information. Fixes#2197
Mostly just eliminating concatenation-reassignments by chaining
concatenations, reordering assignments to allow better use of bin.pack,
and using tables to store intermediate results before concatenating
them. Used strbuf as a quick fix in dhcp.lua. Eliminated some unused
string variables in vulns.lua.
1. The first paragraph of a function's NSEdoc is used as a short
summary. Some of these were very long, so I split off a shorter summary.
2. Use asterisks (*) to denote bulletted lists, not 'o'
3. Wrap lines at 80 columns
4. a couple other spelling and formatting fixes
socket support to NSE, with updates in scripts and libraries.
o [NSE] Added the ability to send and receive on unconnected sockets.
This can be used, for example, to receive UDP broadcasts without
using pcap. A number of scripts have been changed so that they can
work as prerule scripts to discover services by UDP broadcasting,
optionally add the discovered targets to the scanning queue:
- ms-sql-info
- upnp-info
- dns-service-discovery
The nmap.new_socket function can now optionally take a default
protocol and address family, which will be used if the socket is not
connected. There is a new nmap.sendto function to be used with
unconnected UDP sockets. [David, Patrik]
This is a maintenance fix for the NSE Nsock library binding. The patch focuses
on code correctness and simplicity. The patch also brings some initial updates
with an eye towards the upcoming Lua 5.2 release. See [1] for a post concerning
this branch.
[1] http://seclists.org/nmap-dev/2010/q3/710
