./adnstest unkopts
:0x0|1 chiark.greenend.org.uk
 start 1414184606.322883
 socket domain=AF_INET type=SOCK_DGRAM
 socket=6
 +0.000116
 fcntl fd=6 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000047
 fcntl fd=6 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000040
 sendto fd=6 addr=172.18.45.6:53
     311f0100 00010000 00000000 06636869 61726b08 67726565 6e656e64 036f7267
     02756b00 00010001.
 sendto=40
 +0.000202
 select max=7 rfds=[6] wfds=[] efds=[] to=1.999798
 select=1 rfds=[6] wfds=[] efds=[]
 +0.002958
 recvfrom fd=6 buflen=512
 recvfrom=OK addr=172.18.45.6:53
     311f8580 00010001 00020002 06636869 61726b08 67726565 6e656e64 036f7267
     02756b00 00010001 c00c0001 00010000 0e100004 d40dc5e5 c0130002 00010001
     51800011 036e7331 0a72656c 61746976 697479c0 13c01300 02000100 01518000
     06036e73 30c048c0 61000100 01000151 800004ac 122d06c0 44000100 01000151
     800004ac 122d0b.
 +0.000383
 recvfrom fd=6 buflen=512
 recvfrom=EAGAIN
 +0.000138
 close fd=6
 close=OK
 +0.000180