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I was working on my "dump iptables rules using only syscalls" branch and had a bunch of C structure decoding to do. Rather than manually calculating the padding or using unsafe trickery to actually cast variable-length structures to Go types, I'd rather use a helper package that deals with padding for me. Padding rules were taken from the following article: http://www.catb.org/esr/structure-packing/ Signed-off-by: Andrew Dunham <andrew@du.nham.ca>