ADC Advanced Policy Expressions

DNS_HEADER_T

This object provides operations for parsing the DNS header.

This topic lists the expressions that are provided by this class.

ANCOUNT

Returns the answer count in the DNS header.

Returns: num_at

ARCOUNT

Returns the additional record count in the DNS header.

Returns: num_at

FLAGS

Returns the value of DNS header flags

Returns: dns_flag_t

NSCOUNT

Returns the nameserver count in the DNS header.

Returns: num_at

OPCODE

Return the opcode in the DNS header.

Returns: dns_opcode_t

QDCOUNT

Returns the question count in the DNS header.

Returns: num_at

RCODE

Return the response code of the DNS question

Returns: dns_rcode_t

DNS_HEADER_T

In this article