Nmap Development mailing list archives
RE: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets
From: "Thomas Buchanan" <TBuchanan () thecompassgrp net>
Date: Wed, 23 Apr 2008 22:57:41 -0500
-----Original Message----- From: nmap-dev-bounces () insecure org [mailto:nmap-dev-bounces () insecure org] On Behalf Of Brandon Enright Sent: Wednesday, April 23, 2008 10:38 PM To: Fyodor Cc: nmap-dev; jah; bmenrigh () ucsd edu Subject: Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 23 Apr 2008 20:30:30 -0700 or thereabouts Fyodor <fyodor () insecure org> wrote:I just checked in this fix, which seems to fix the problem in my testing. I moved the Nmap srand to be much earlier in the code to reduce the chances of it clobbering other srand() calls, and I also made it unique from the srand() call used by nbase. Thanksto Jah andBrandon for your help.Hmm, I don't think we're out of the woods yet. I think we're hitting a very short cycle problem of Visual Studio's rand LCG that won't show up using GCC on Linux. We may need to use rand_s() on Windows. I just sent a follow up note to your previous one. I don't have a Windows dev box or I'd help test this. Brandon
The new code certainly looks better on my system: Windows XP Pro SP2 w/VS Express 2005 Nmap 4.60 downloaded from nmap.org: Thomas Buchanan@xp-shuttle /cygdrive/d/Utils/nmap-4.60 $ for i in 100 200 400 600 800 1200 1600 3200 6400 10000 100000 ; do COUNT=`./nmap -n -sL -iR $i | egrep '^Host' | sort -u |wc -l`; echo $i $COUNT; done 100 100 200 200 400 351 600 354 800 432 1200 843 1600 1258 3200 2863 6400 6035 10000 9637 100000 99649 Nmap built from svn at revision 7183: Thomas Buchanan@xp-shuttle /cygdrive/e/Dev/svn/nmap/mswin32/Release $ for i in 100 200 400 600 800 1200 1600 3200 6400 10000 100000 ; do COUNT=`./nmap -n -sL -iR $i | egrep '^Host' | sort -u |wc -l`; echo $i $COUNT; done 100 100 200 200 400 400 600 600 800 800 1200 1200 1600 1600 3200 3200 6400 6400 10000 10000 100000 99999 Thomas _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- [Bug]? -iR <num_hosts> on windows XP generates duplicate targets jah (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Fyodor (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets jah (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Fyodor (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (Apr 23)
- RE: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Thomas Buchanan (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Fyodor (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets jah (Apr 24)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (Apr 30)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets jah (Apr 30)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets David Fifield (Apr 30)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (Apr 30)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Kris Katterjohn (May 01)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (May 01)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Kris Katterjohn (May 01)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets doug (May 01)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Brandon Enright (Apr 23)
- Re: [Bug]? -iR <num_hosts> on windows XP generates duplicate targets Fyodor (Apr 23)