Example in PowerDNS, where the allowance for the "IN" class is hard-coded to remove ambiguity: https://github.com/PowerDNS/pdns/blob/master/pdns/zoneparser-tng

Example in PowerDNS, where the allowance for the "IN" class is hard-coded to remove ambiguity: https://github.com/PowerDNS/pdns/blob/master/pdns/zoneparser-tng.cc#L40 https://github.com/PowerDNS/pdns/blob/master/pdns/zoneparser... And in BIND where the <rdata> parsing is coded up for a bunch of <type>'s: https://github.com/isc-projects/bind9/tree/main/lib/dns/rdata/in_1 https://github.com/isc-projects/bind9/tree/main/lib/dns/rdat...