// A simple client-side HTTP-style test that does a connect, sends a
// short request, and receives a short response.

// Create a socket and set it to non-blocking.
0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
0.000 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
0.000 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0

// Establish connection and verify that there was no error.
0.100 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
0.100 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 6>
0.200 < S. 0:0(0) ack 1 win 5792 <mss 1460,sackOK,TS val 700 ecr 100,nop,wscale 7>
0.200 > . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 700>
0.200 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
0.200 fcntl(3, F_SETFL, O_RDWR) = 0   // set back to blocking

// Send the HTTP request.
0.200 write(3, ..., 57) = 57
0.200 > P. 1:58(57) ack 1 <nop,nop,TS val 200 ecr 700>
0.300 < . 1:1(0) ack 58 win 92 <nop,nop,TS val 800 ecr 200>

// Receive the HTTP response and the server's FIN.
0.300 < P. 1:786(785) ack 58 win 92 <nop,nop,TS val 800 ecr 200>
0.300 > . 58:58(0) ack 786 <nop,nop,TS val 300 ecr 800>
0.300 < F. 786:786(0) ack 58 win 92 <nop,nop,TS val 800 ecr 200>
0.300 read(3, ..., 1024) = 785
0.300 read(3, ..., 1024) = 0
// Delayed ACK.
0.340 > . 58:58(0) ack 787 <nop,nop,TS val 300 ecr 800>

// Close the connection.
0.350 close(3) = 0
0.350 > F. 58:58(0) ack 787 <nop,nop,TS val 300 ecr 800>
0.450 < . 787:787(0) ack 59 win 92 <nop,nop,TS val 900 ecr 300>