proposal. This only affects Nmap's root directory. We might also need to
modify the code which autogenerates Nmap's source code files such as IPv6
fingerprinting code.
Previously we always took the destination address from the packet
buffer, which failed for IPv6 link-local addresses because the packet
buffer does not contain the scope id.
The comment in struct_ip.h explains the reasoning for this. The AIX C library
uses #defines that change the names of members of struct ip, and conflict with
some existing code. (Notably struct ip_hdr in libdnet and IPv4Header::h in
libnetutil.) We can still use the AIX files if we include <netinet/ip.h> after
this other code has been preprocessed. That's hard to enforce when
<netinet/ip.h> is included from another header file; this new file allows
including it always late, and only where needed.
Heretofore we have always extracted teh destination address directly
from the packet contents. But the raw packet bytes do not contain enough
information in one case: IPv6 link-local addresses. For those we really
need the scope ID, and for that we must pass this information all the
way down.
Before this, I got "no route to host" on OS link-local addresses. I
think that it was working on Linux only on accident, by the OS picking a
default interface or something.
scripts to bail. (This is why Ron saw a backtrace when path-mtu elicited an
EMSGSIZE [a separate issue I'm still working on] instead of path-mtu
recognizing the failure and resending with a smaller MTU like it would do
before.) I'm changing this back to the original design of returning false to
scripts (just like connect-mode send failures).
I've changed safe_error() in nse_utility.cc to support varargs.
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
