PC-BSD/trueos 4e62948sbin/ipfw ipfw2.c

Use correct size for IPv4 address in gethostbyaddr().

When u_long is 8 bytes, it returns EINVAL and 'ipfw -N show' doesn't work.

Reported by:    Claudio Eichenberger <cei at yourshop.com>
MFC after:      1 week
DeltaFile
+2-1sbin/ipfw/ipfw2.c
+2-11 files

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