Nmap Development mailing list archives
Re: [PATCH] [Ncat] Fix EOF handling
From: David Fifield <david () bamsoftware com>
Date: Mon, 8 Jun 2009 11:11:14 -0600
On Sun, Jun 07, 2009 at 11:20:41PM -0500, Kris Katterjohn wrote:
David Fifield wrote:That's a good idea. In svn://svn.insecure.org/nmap-exp/david/nmap-listen I added -k/--keep-open like you suggested. -k doesn't conflict with any nc or GNU Netcat options. However, I see that a Windows version of Netcat uses -L ("listen harder") for much the same feature. http://osdir.com/ml/os.apple.macports.user/2007-07/msg00072.html There was a request for -L in Ncat, and Kris pointed out that -l already does that. http://seclists.org/nmap-dev/2009/q1/0037.html But because persistent connections cause some programs to lose the tail end of transfers, we're thinking of making non-persistent the default. I think the ncat-listen branch does what we need, but it remains to choose the user interface. I like -k/--keep-open, but -L (and maybe --Listen?) has the benefit of a precedent. Does anyone have a preference?I'm confused: Daniel said in his initial post that the -k option in his patch is like the same option from BSD netcat. So -k has precedent too, right?
Silly me, I forgot that there was a patch at the beginning of this long thread. I ended up doing almost exactly the same thing in the ncat-listen branch. It's because I didn't understand the problem at first. I'm glad BSD nc has -k, because I like that better also. Ours works a little differently; nc -k handles one connection at a time and other connections block until the first is ended. I move that we adopt Daniel's listen-mode patch, because ncat-listen also had a refactoring of --exec that I don't think is worth it. David Fifield _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- Re: [PATCH] [Ncat] Fix EOF handling, (continued)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Apr 19)
- Re: [PATCH] [Ncat] Fix EOF handling (client-side) Daniel Roethlisberger (May 02)
- Re: [PATCH] [Ncat] Fix EOF handling (client-side) David Fifield (May 03)
- Re: [PATCH] [Ncat] Fix EOF handling (server side) Daniel Roethlisberger (May 02)
- Re: [PATCH] [Ncat] Fix EOF handling (server side) David Fifield (May 03)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 01)
- Re: [PATCH] [Ncat] Fix EOF handling Daniel Roethlisberger (Jun 02)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 07)
- Re: [PATCH] [Ncat] Fix EOF handling Kris Katterjohn (Jun 07)
- Re: [PATCH] [Ncat] Fix EOF handling Daniel Roethlisberger (Jun 07)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 08)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 09)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 10)
- Re: [PATCH] [Ncat] Fix EOF handling Fyodor (Jun 02)
- Re: [PATCH] [Ncat] Fix EOF handling David Fifield (Jun 04)
- Re: Ncat EOF handling, one-connection listen mode branch David Fifield (Jun 06)
- Re: Ncat EOF handling, one-connection listen mode branch Daniel Roethlisberger (Jun 06)
- Re: Ncat EOF handling, one-connection listen mode branch Daniel Roethlisberger (Jun 06)
- Re: Ncat EOF handling, one-connection listen mode branch David Fifield (Jun 06)
- Re: Ncat EOF handling, one-connection listen mode branch Daniel Roethlisberger (Jun 06)