Nmap Development: Re: [BUG] NSE/Nsock filehandle exhaustion

[Fyodor <fyodor () insecure org>]

On Thu, Aug 30, 2007 at 08:45:34PM +0200, majek04 wrote:
> On 8/28/07, Brandon Enright <bmenrigh () ucsd edu> wrote:
>
> I implemented it exactly as you proposed. nsock_connect blocks when the
> number of opened connections exceeds some threshold.
>
> For this moment this threshold is hardcoded  in
> #define NSOCK_DESCRIPTORS_THRESHOLD 768
Hi Marek.  This patch looks great, thanks!  I've changed it to use
o.max_parallelism instead, which is designed for this purpose.  Also,
Brandon made a great point about a script which might open several
sockets at once (for example an identd-checking script).  So I made it
always allow at least 10 concurrent sockets.  I checked the result
into SVN.  It seems to work from my testing, but I only tested a
couple machines -- not enough to actually reach the limit.

Cheers,
-F


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