Hi , I have one doubt regarding the interface of LWIP TCP module to HTTP client. The case is where we have a HTTP client on top of LWIP stack, and are downloading a web page from HTTP server. In one special case, lwip_recvfrom() returns NULL., on enabling prints we see, "lwip_recvfrom(4): buf == NULL!" I am not sure why it is returning NULL, looks like netconn_recv() returns NULL.
My question is, in this case, should the application close the TCP connection, calling lwip_close()? Or what best can the application do? Also, what might be the possible reasons for netconn_recv() to return NULL? Thanks in advance! Best Regards, Achuth M Kamath
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