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// Verify behavior for the sequence:
// shutdown(SHUT_RD), close().
// Initialize a server socket.
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0
+0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 6>
+0 < . 1:1(0) ack 1 win 257
+0 accept(3, ..., ...) = 4
+.010 shutdown(4, SHUT_RD) = 0
+0 read(4, ..., 1000) = 0
// Verify that writing and sending still works.
+.010 write(4, ..., 1000) = 1000
+0 > P. 1:1001(1000) ack 1
+0 < . 1:1(0) ack 1001 win 257
+.010 close(4) = 0
+0 > F. 1001:1001(0) ack 1
+0 < . 1:1(0) ack 1002 win 257
+.010 < F. 1:1(0) ack 1002 win 257
+0 > . 1002:1002(0) ack 2
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