./adnstest default -0x4000
:0x60000000|1 0x40180000/chiark.greenend.org.uk
 start 1414182790.489799
 socket domain=AF_INET type=SOCK_DGRAM
 socket=6
 +0.000123
 fcntl fd=6 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000047
 fcntl fd=6 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000039
 close fd=6
 close=OK
 +0.000149