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Re: [lwip-users] Unusual termination of a TCP connection.

From: Roger Cover
Subject: Re: [lwip-users] Unusual termination of a TCP connection.
Date: Wed, 28 Sep 2016 13:06:13 -0700


I am using the callback API. Sorry I did not mention that. What more details do 
you want?

The content-length=0 is due to the old server not supporting the command to 
report its version in the same way. There is no additional data waiting to be 
sent. This is a side effect of using the same program to do both tests with 
just a file name change.

-----Original Message-----
From: lwip-users [mailto:address@hidden On Behalf Of Sergio R. Caprile
Sent: Wednesday, September 28, 2016 11:18 AM
To: address@hidden
Subject: Re: [lwip-users] Unusual termination of a TCP connection.

I see what you mean.
I also see that the 1.2.0 version sent content-length=0 and the 1.4.1 version 
sends content-length=115 IIRC, this is not unusual, lwIP might be indicating 
that there is still data to be sent. Is it possible that you left some data in 
the buffer ?
Thank you very much indeed for the capture files, could you be even nicer and 
tell us how you use lwIP's API, and, by the way, which one ?


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