[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[lwip-users] Re: [lwip] tcp_connect
From: |
Adam Dunkels |
Subject: |
[lwip-users] Re: [lwip] tcp_connect |
Date: |
Wed, 08 Jan 2003 22:35:08 -0000 |
Hi!
On Sunday 25 November 2001 19:42, you wrote:
> I want to create a new connection between the board IP: 192,168,1,2 and
> a server listening in 192,168,1,3 port 4443
> This code down here dont work.It seems that never call the
> write_asnwer_to server function.
You could try to use a network sniffer such as tcpdump
[http://www.tcpdump.org] or ethereal [http://www.ethereal.com] to see what is
actually going on on the wire.
The callback function specified in the call to tcp_connect() should be called
even if the connected is refused. In that case, the "err" argument to the
callback function is set to ERR_RST or similar.
Also, you have written the code the right way.
> if i want to create a new connection i call tcp_connect. but Which value
> has to have last arg in the function if its a NEW connection??
This is the value that should be passed as the first argument to the callback
function (i.e, write_answer_to_server() in your case).
Note that this is changed in lwIP 0.5. Instead of specifying the callback
argument in the call to tcp_connect(), the callback argument is specified
with a new tcp_arg() function.
/adam
--
Adam Dunkels <address@hidden>
http://www.sics.se/~adam
[This message was sent through the lwip discussion list.]
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [lwip-users] Re: [lwip] tcp_connect,
Adam Dunkels <=