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// If we close the connection before read()'ing what
// the other side sent, a RST will be generated instead
// of a FIN.
0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
0.000 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
0.000 bind(3, ..., ...) = 0
0.000 listen(3, 1) = 0
0.100 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7>
0.100 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 6>
0.200 < . 1:1(0) ack 1 win 257
0.200 accept(3, ..., ...) = 4
// Receive first segment.
0.210 < P. 1:1001(1000) ack 1 win 46
// Send one ACK.
0.210 > . 1:1(0) ack 1001
// Application writes 1000 bytes.
0.250 write(4, ..., 1000) = 1000
0.250 > P. 1:1001(1000) ack 1001
// ACK
0.300 < . 1001:1001(0) ack 1001 win 257
// Client closes the connection.
0.610 < F. 1001:1001(0) ack 1001 win 260
// Respond with (delayed) ACK.
0.650 > . 1001:1001(0) ack 1002
// We close the connection.
0.700 close(4) = 0
// Since we have not read, we generate a RST instead of a FIN
// conforming to RFC 1122 section 4.2.2.13.
0.701 > R. 1001:1001(0) ack 1002
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