close() on tcp socket.

connect() system call establishes a connection as shown in below steps.

1.   |client |  ----------------- syn --------------->  | server |

2.  |Server|  --------------syn+ ack --------------> | client |

3.  | Client | -----------------ack --------------------> | Server |


But establishing connection , client calls close() system call. Client
is sending FIN+ ACK to server  [ i expected only FIN to be sent from
client to server ]

Is this a valid scenario.?  what could be the problem ?


-Ratheesh