--- title: "mg_dns_copy_questions()" decl_name: "mg_dns_copy_questions" symbol_kind: "func" signature: | int mg_dns_copy_questions(struct mbuf *io, struct mg_dns_message *msg); ---
Appends already encoded questions from an existing message.
This is useful when generating a DNS reply message which includes all question records.
Returns the number of appended bytes.