// If we close the connection after read()'ing what
// the other side sent, a FIN will be generated. This
// behavior conforms to RFC 793.

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

0.400 read(4, ..., 1000) = 1000

// 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
0.701 > F. 1001:1001(0) ack 1002