allow/deny host list support about dnsx

[brenocss]

unlike httpx, i believe dnsx should use deny and match list to create a field in json

echo 'localhost.tld'  |  dnsx -deny 127.0.0.1 -json -match 192.168.0.1

{
  "host": "localhost.tld",
  "resolver": [
    "1.0.0.1:53"
  ],
  "a": [
    "127.0.0.1"
  ],
  "status_code": "NOERROR",
  "timestamp": "2022-01-15T18:23:30.841005537Z"
 "deny": true
 "match": false
}

• Use cases

cat domainnames  |  dnsx -match cloudipranges -deny cdniprange -json | anew log.json
# Get all hostnames that belong to cloud
cat log.json |  jq 'select(.match==true).host'
# Get all hostnames that don't belong to cdn
cat log.json |  jq 'select(.deny==true).host'

[ehsandeep]

Closing this ticket, as allow/deny can be only supported after perfroming dns resolution.