ipv4 quadonly, make test program compile

[adns] / regress / case-manya.sys

adnstest default
:1 manyaddrs.test.iwj.relativity.greenend.org.uk
 start 912888920.123769
 socket type=SOCK_DGRAM
 socket=4
 +0.000245
 fcntl fd=4 cmd=F_GETFL
 fcntl=~O_NONBLOCK&...
 +0.000705
 fcntl fd=4 cmd=F_SETFL O_NONBLOCK|...
 fcntl=OK
 +0.000073
 sendto fd=4 addr=172.18.45.6:53
     311f0100 00010000 00000000 096d616e 79616464 72730474 65737403 69776a0a
     72656c61 74697669 74790867 7265656e 656e6403 6f726702 756b0000 010001.
 sendto=63
 +0.000698
 select max=5 rfds=[4] wfds=[] efds=[] to=1.999302
 select=1 rfds=[4] wfds=[] efds=[]
 +0.006236
 recvfrom fd=4 buflen=512 *addrlen=16
 recvfrom=OK addr=172.18.45.6:53
     311f8580 00010004 00010001 096d616e 79616464 72730474 65737403 69776a0a
     72656c61 74697669 74790867 7265656e 656e6403 6f726702 756b0000 010001c0
     0c000100 01000000 3c0004ac 122d23c0 0c000100 01000000 3c0004ac 122d06c0
     0c000100 01000000 3c0004ac 122d01c0 0c000100 01000000 3c00047f 00000104
     74657374 0369776a 0a72656c 61746976 69747908 67726565 6e656e64 036f7267
     02756b00 00020001 0000003c 0006036e 7330c088 c0ae0001 00010001 51800004
     ac122d06.
 +0.001078
 recvfrom fd=4 buflen=512 *addrlen=16
 recvfrom=EAGAIN
 +0.000329
 close fd=4
 close=OK
 +0.000240