Re: nmap 3.93 dumps core when exclude cidr netmask is less than 32

[Ismail Donmez <ismail () uludag org tr>]

On Wednesday 16 November 2005 00:12, Adam wrote:
> On Thu, 10 Nov 2005 nmapuser () globalmegahost com wrote:
>
> [snip]
>
> > % nmap -n -sL --exclude 10.1.1.3/30 10.1.1.0/29
> >
> > Starting nmap 3.93 ( http://www.insecure.org/nmap/ ) at 2005-11-10 15:10
> > MST Assertion failed: (targets_type == IPV6_ADDRESS), function
> > get_next_host, file TargetGroup.cc, line 429. Abort (core dumped)
>
> [snip]
>
> I rebuilt nmap with `-g3' so I could use debugging tools like gdb and
> valgrind in hopes of finding where I should start in making a patch so
> that networks expressed in cidr notion could properly be excluded.  While
> I am still operating on the assumption that I may be using nmap's
> --exclude incorrectly, I am also open to the possibility that nmap has a
> bug and that fixing it may yield the result I desire.  In replaying the
> above scenario with gdb I see the following output.
>
> % ./nmap -n -sL --exclude 10.1.1.0/30 10.1.1.10/29

Must be a *BSD thing as it certainly works fine on Linux :

cartman@pardus ~ $ nmap -n -sL --exclude 10.1.1.3/30 10.1.1.0/29

Starting nmap 3.93 ( http://www.insecure.org/nmap/ ) at 2005-11-16 02:35 EET
Host 10.1.1.4 not scanned
Host 10.1.1.5 not scanned
Host 10.1.1.6 not scanned
Host 10.1.1.7 not scanned
Nmap finished: 4 IP addresses (0 hosts up) scanned in 0.105 seconds

Regards,
ismail


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