Apropos opcode

ares_dns_class_fromstr(3), ares_dns_class_tostr(3), ares_dns_datatype_t(3), ares_dns_opcode_tostr(3), ares_dns_opt_datatype_t(3), ares_dns_opt_get_datatype(3), ares_dns_opt_get_name(3), ares_dns_rcode_tostr(3), ares_dns_rec_type_fromstr(3), ares_dns_rr_get_keys(3), ares_dns_rr_key_datatype(3), ares_dns_rr_key_to_rec_type(3), ares_dns_rr_key_tostr(3), ares_dns_section_tostr(3), ares_opt_param_t(3), ares_svcb_param_t(3)

ares_dns_class_t(3), ares_dns_flags_t(3), ares_dns_opcode_t(3), ares_dns_parse(3), ares_dns_rcode_t(3), ares_dns_record_create(3), ares_dns_record_destroy(3), ares_dns_record_get_flags(3), ares_dns_record_get_id(3), ares_dns_record_get_opcode(3), ares_dns_record_get_rcode(3), ares_dns_record_query_add(3), ares_dns_record_query_cnt(3), ares_dns_record_query_get(3), ares_dns_rec_type_t(3), ares_dns_write(3)

ldns_pkt_id(3), ldns_pkt_qr(3), ldns_pkt_aa(3), ldns_pkt_tc(3), ldns_pkt_rd(3), ldns_pkt_cd(3), ldns_pkt_ra(3), ldns_pkt_ad(3), ldns_pkt_get_opcode(3), ldns_pkt_get_rcode(3), ldns_pkt_qdcount(3), ldns_pkt_ancount(3), ldns_pkt_nscount(3), ldns_pkt_arcount(3), ldns_pkt_answerfrom(3), ldns_pkt_querytime(3), ldns_pkt_size(3), ldns_pkt_tsig(3), ldns_pkt_question(3), ldns_pkt_answer(3), ldns_pkt_authority(3), ldns_pkt_additional(3), ldns_pkt_get_section_clone(3), ldns_pkt_rr_list_by_name(3), ldns_pkt_rr_list_by_type(3), ldns_pkt_rr_list_by_name_and_type(3)

ldns_pkt_set_flags(3), ldns_pkt_set_id(3), ldns_pkt_set_qr(3), ldns_pkt_set_aa(3), ldns_pkt_set_tc(3), ldns_pkt_set_rd(3), ldns_pkt_set_cd(3), ldns_pkt_set_ra(3), ldns_pkt_set_ad(3), ldns_pkt_set_opcode(3), ldns_pkt_set_rcode(3), ldns_pkt_set_qdcount(3), ldns_pkt_set_ancount(3), ldns_pkt_set_nscount(3), ldns_pkt_set_arcount(3), ldns_pkt_set_answerfrom(3), ldns_pkt_set_querytime(3), ldns_pkt_set_size(3), ldns_pkt_set_section_count(3), ldns_pkt_set_tsig(3)