DNS_HEADER (Windows CE 5.0)

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This structure contains DNS header information used when sending DNS messages.

typedef struct _DNS_HEADER {WORD Xid;BYTE RecursionDesired;BYTE Truncation;BYTE Authoritative;BYTE Opcode;BYTE IsResponse;BYTE ResponseCode;BYTE Reserved;BYTE RecursionAvailable;WORD QuestionCount;WORD AnswerCount;WORD NameServerCount;WORD AdditionalCount;} DNS_HEADER, *PDNS_HEADER;

Members

• Xid
  [in] DNS message header identifier.
• RecursionDesired
  [in] Specifies whether recursion is desired on the DNS message.
• Truncation
  [in] Specifies whether truncation has been applied to the DNS message.
• Authoritative
  [in] Specifies whether the node from which the DNS Message is being sent is authoritative for the zone.
• Opcode
  [in] Specifies the operation code to be taken on the DNS message.
• IsResponse
  [in] Specifies whether the DNS message is a query response message.
• ResponseCode
  [in] Response code of the DNS message.
• Reserved
  [in] Reserved. Do not use.
• RecursionAvailable
  [in] Specifies whether recursion is available on the DNS query.
• QuestionCount
  [in] Number of queries contained in the DNS message.
• AnswerCount
  [in] Number of answers contained in the DNS message.
• NameServerCount
  [in] Number of DNS Name Servers the message has traversed in its search for resolution.
• AdditionalCount
  [in] Reserved. Do not use.

Remarks

None.

Requirements

OS Versions: Windows CE 5.0 and later.
Header: Windns.h.

See Also

DNS Structures

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