Re: [lwip-users] http server and pbuf overflow

[Bernhard 'Gustl' Bauer]

Bob Brusa schrieb:
> Am 18.01.2010, 12:11 Uhr, schrieb Bernhard 'Gustl' Bauer 
> <address@hidden>:
> > Every time http_recv is called I check if this is the 1st packet. If 
> > it is I set a pointer to this pbuf and do not free this pbuf. If it is 
> > not the 1st packet I store the data and free this pbuf.
> >
> > Then I check if this is the last packet. If it is I process all data 
> > and   then free the pbuf of the 1st packet.
> >
> > When there is an tcp_err during a transfer I do free the 1st packet to.
>
> Gustl, what if you miss these last buffers sometimes? I would change the 
> logic:
> If you get a first buffer check if you have some old stuff around and 
> clean up.

Don't I get a tcp_err in this case? This would free pbuf.

I'll try to verify this.