Allows ss (socket statistics) to continously output microsecond timestamped
procfs information about current TCP connections. Based on iproute2 "ss -
another utility to investigate sockets."

Usage:

  ss -g

Install:

  sudo apt-get install iptables-dev
  ./configure
  make

Output:

When using the -g option, ss will output data like the following example. The
delimiter between continuous procfs reads is the TIMESTAMP keyword. mono and
real correspond to the timestamps logged using clock_gettime (see `man 2
clock_gettime`).

  TIMESTAMP
  mono	1296043	253642430
  real	1330444244	341364392
  ESTAB      0      0                                                                              216.165.108.71:44923                                                                         74.125.113.105:443    timer:(keepalive,37sec,0) uid:1046 ino:31840194 sk:ffff8801e3e50000
     mem:(r0,w0,f0,t0) ts sack cubic wscale:6,7 rto:228 rtt:31/13 ato:40 send 731.9Kbps rcv_rtt:26 rcv_space:45800
  ESTAB      0      0                                                                            216.165.108.71:52953                                                                          72.247.238.10:www      timer:(keepalive,22sec,0) users:(("chrome",537,215)) uid:1046 ino:31855725 sk:ffff8801e3ece540
     mem:(r0,w0,f0,t0) ts sack cubic wscale:2,7 rto:204 rtt:6.5/7 ato:40 cwnd:3 send 5.3Mbps rcv_rtt:32 rcv_space:14600