./adnstest default -0x4000
:0x70000000|1 0x40080000/chiark.greenend.org.uk
 start 1414182770.758670
 socket domain=AF_INET type=SOCK_DGRAM
 socket=6
 +0.000142
 fcntl fd=6 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000080
 fcntl fd=6 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000060
 close fd=6
 close=OK
 +0.000170