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#!/usr/bin/env bash
set -e
if [ "$#" -ne 1 ]; then
echo "Usage: $0 AS-Number" >&2
exit 1
fi
LIST=/tmp/asn.json
ORIGIN="https://stat.ripe.net/data/announced-prefixes/data.json?resource=$1"
http_response=$(curl -s -o "${LIST}" -w "%{http_code}" "${ORIGIN}")
if [ "$http_response" != "200" ]; then
echo "Error $http_response: service temporiarally not available?" >&2
exit 1
elif [ "$http_response" != "200" ]; then
echo "Error $http_response: wrong ASN number/format?" >&2
exit 1
fi
jq -r '.data.prefixes[].prefix' $LIST | grep -v ":"
rm -f $LIST
exit 0
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