Method unpack_rrs

mitmproxy/dns.py:426–452

(
            section: list[ResourceRecord], section_name: str, count: int
        )

                raise struct.error(f"question #{i}: {e}")

        def unpack_rrs(
            section: list[ResourceRecord], section_name: str, count: int
        ) -> None:
            nonlocal buffer, offset
            for i in range(0, count):
                try:
                    name = unpack_domain_name()
                    type, class_, ttl, len_data = ResourceRecord.HEADER.unpack_from(
                        buffer, offset
                    )
                    offset += ResourceRecord.HEADER.size
                    end_data = offset + len_data
                    if len(buffer) < end_data:
                        raise struct.error(
                            f"unpack requires a data buffer of {len_data} bytes"
                        )
                    data = buffer[offset:end_data]

                    if domain_names.record_data_can_have_compression(type):
                        data = domain_names.decompress_from_record_data(
                            buffer, offset, end_data, cached_names
                        )

                    section.append(ResourceRecord(name, type, class_, ttl, data))
                    offset += len_data
                except struct.error as e:
                    raise struct.error(f"{section_name} #{i}: {e}")

        unpack_rrs(msg.answers, "answer", len_answers)
        unpack_rrs(msg.authorities, "authority", len_authorities)