[lwip-devel] [bug #9455] The sockets API does not correctly inform a process that a RST has been received

[Simon Goldschmidt]

Follow-up Comment #3, bug #9455 (project lwip):

(I'm referring to the explanation given in
http://www.opengroup.org/onlinepubs/000095399/functions/send.html)

Since we can't close a connection for writing only (can we?), I think both
error codes (ECONNRESET and EPIPE) are correct. So it's up to us to decide
which one we want to use. Since ERR_RST is only used with tcp, defining
ERR_RST to EPIPE should do the trick. (Or is EPIPE also returned to UDP
sockets when an icmp-packet 'dest unreachable' was received for that udp
port? I don't think we support that).

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