// Test for connect timeout.

// Attempt to establish a connection.
 +.0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 500
+.1 connect(500, ..., ...) = 0

// Send SYN packet.
+.0 TCP > S seq 0(0) win 65535 <mss 1450, wscale 0>

// Retransmit SYN packet (1).
+3 TCP > S seq 0(0) win 65535 <mss 1450, wscale 0>

// Retransmit SYN packet (2).
+3 TCP > S seq 0(0) win 65535 <mss 1450, wscale 0>

// Retransmit SYN packet (3).
+3 TCP > S seq 0(0) win 65535 <mss 1450, wscale 0>

// Retransmit SYN packet (4).
+3 TCP > S seq 0(0) win 65535 <mss 1450, wscale 0>

// Fail to connect.
+3 wait(500, ...) = ECONNREFUSED