int dns_scope_emit(DnsScope *s, DnsPacket *p);
int dns_scope_tcp_socket(DnsScope *s, int family, const union in_addr_union *address, uint16_t port);
int dns_scope_emit(DnsScope *s, DnsPacket *p);
int dns_scope_tcp_socket(DnsScope *s, int family, const union in_addr_union *address, uint16_t port);