[lwip-devel] [bug #36494] tcp_recved is not called when a remote TCP connection is closed

[Bill Auerbach]

URL:
  <http://savannah.nongnu.org/bugs/?36494>

                 Summary: tcp_recved is not called when a remote TCP
connection is closed
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: billauerbach
            Submitted on: Fri 18 May 2012 04:58:50 PM EDT
                Category: TCP
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: CVS Head

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Details:

Using NO_SYS=1 and the RAW callback API, I just discovered that when a remote
TCP connection is closed (a normal close) tcp_recved is not called with struct
pbuf *p == NULL but instead tcp_err is called.  That conflicts with how I
think it used to be and definitely with how the Wiki describes closing a
socket should be handled.





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