Nmap Development mailing list archives
Re: [NSE] WHOIS - Attempts to queue coroutines to limit the number of whois queries.
From: Fyodor <fyodor () insecure org>
Date: Sat, 5 Apr 2008 16:12:45 -0700
On Fri, Feb 15, 2008 at 01:54:53AM +0000, jah wrote:
On 03/02/2008 22:47, Fyodor wrote:On Sun, Feb 03, 2008 at 01:46:35AM +0000, jah wrote:On some occasions, a service will take so long to respond that a huge number of queries are generated and this is very undesirable given the possibility of having ones IP address banned from using the service. I've set about trying to find a way to queue coroutines and have them wait in the queue until either a matching cached result was available (->return a pointer) or the coroutine arrives at the front of the queue (->proceed with a query). My problem is; how to make a coroutine wait? I've tried coroutine.yield() which does exactly what it says on the tin, but there's seemingly no way to make a yield() from inside a script resume() again and the coroutine sits there waiting for a callback from NSOCK, which it never gets.
Great question. I'm not sure of the best way to do this. Does anyone have ideas? Jah included a bunch more details in his email at http://seclists.org/nmap-dev/2008/q1/0294.html . A solution to this would help with whois.nse, and likely many other scripts too. Cheers, -F _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- Re: [NSE] WHOIS - Attempts to queue coroutines to limit the number of whois queries. Fyodor (Apr 05)
- <Possible follow-ups>
- Re: [NSE] WHOIS - Attempts to queue coroutines to limit the number of whois queries. majek04 (Apr 08)
- Re: [NSE] WHOIS - Now with Queuing and Cached Results. jah (Apr 22)
- Re: [NSE] WHOIS - Now with Queuing and Cached Results. Fyodor (Jun 13)
- Re: [NSE] WHOIS - Now with Queuing and Cached Results. jah (Jun 14)
- Re: [NSE] WHOIS - Now with Queuing and Cached Results. Patrick Donnelly (Jun 14)
- Re: [NSE] WHOIS - Now with Queuing and Cached Results. jah (Apr 22)