[lwip-users] [lwip] uIP: writev() and tap

[Felipe Massia Pereira]

Hello,

it seems that the tap device under Linux gets a packet per write. So the
writev in tapdev_send breaks one packet in 2. Well, I replaced the writev
with

  ret = write(fd,uip_buf,uip_len);

Even thinking "well, there must be a reason to use writev instead of
write"... I suppose it's because sometimes there's a "hole" between the
headers and the data.

Now arp and ping works. But httpd does not. The connection is established
but after the request it gets lost. 

I tried the simulator with the writev and arp/ping/httpd dont work. Since
uIP is already tested and working, I think it may be a problem with the
simulator, or between my chair and my keyboard. :)

cheers,
Felipe


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