set and return the pubkey_pinsets on the upstream resolvers
set and return the pubkey_pinsets on the upstream resolvers

shane-kerr/getdns,shane-kerr/getdns,smogali/getdns,shane-kerr/getdns,huitema/getdns,huitema/getdns,huitema/getdns,shane-kerr/getdns,smogali/getdns,huitema/getdns,smogali/getdns,smogali/getdns