#doh #dns

doh.sh

# The DNS-over-HTTPS wrapper over curl. It supports JSON format instead of wire format (RFC 8484) 
# For best results, add it to your shell startup config files .e.g. .zshrc, .bashrc, or .bash_profile
# Some usage examples:
# doh www.example.com
# doh www.example.com  AAAA
# doh www.example.com  AAAA  https://cloudflare-dns.com/dns-query


doh() {
  if [ "$1" = "" ]|| [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
    echo "Usage: doh name [rrtype] [doh_url]"
    echo "Default:"
    echo "  rrtype: A"
    echo "  doh_url: https://cloudflare-dns.com/dns-query"
    return 0
  fi
  if [ "$2" = "" ]; then
    rrtype="&type=A"
  else
    rrtype="&type=$2"
  fi
  if [ "$3" = "" ]; then
    url="https://cloudflare-dns.com/dns-query"
  else
    url=$3
  fi
  curl -s -H "accept: application/dns-json" "$url?name=$1$rrtype" | jq
}