#!/bin/sh

set -eu

AWK_SCRIPT=$(cat << 'EOF'
/^[ \t]*[^ \t]+[ \t]+([0-9]{1,3}\.){3}[0-9]{1,3}[ \t]*$/ {
	print "local-data: \"" $1 " A " $2 "\""
	print "local-data-ptr: \"" $2 " " $1 "\""
}
EOF
)

readonly AWK_SCRIPT

awk "$AWK_SCRIPT"