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// Test a RST is not generated in response to a RST and a RST is correctly
// generated when an accepted endpoint is RST due to an incoming RST.
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0
// Establish a connection without timestamps.
+0 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7>
+0 > S. 0:0(0) ack 1 <...>
+0 < P. 1:1(0) ack 1 win 257
+0.100 accept(3, ..., ...) = 4
+0.200 < R 1:1(0) win 0
+0.300 read(4,..., 4) = -1 ECONNRESET (Connection Reset by Peer)
+0.00 < . 1:1(0) ack 1 win 257
// Linux generates a reset with no ack number/bit set. This is contradictory to
// what is specified in Rule 1 under Reset Generation in
// https://tools.ietf.org/html/rfc793#section-3.4.
// "1. If the connection does not exist (CLOSED) then a reset is sent
// in response to any incoming segment except another reset. In
// particular, SYNs addressed to a non-existent connection are rejected
// by this means.
//
// If the incoming segment has an ACK field, the reset takes its
// sequence number from the ACK field of the segment, otherwise the
// reset has sequence number zero and the ACK field is set to the sum
// of the sequence number and segment length of the incoming segment.
// The connection remains in the CLOSED state."
+0.00 > R 1:1(0) win 0
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