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windows-nt/Source/XPSP1/NT/public/sdk/inc/windns.h

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/*++
Copyright (c) 1996-2000 Microsoft Corporation
Module Name:
windns.h
Abstract:
Domain Name System (DNS)
DNS definitions and DNS API.
Author:
Jim Gilroy (jamesg) December 7, 1996
Glenn Curtis (glennc) January 22, 1997
Revision History:
--*/
#ifndef _WINDNS_INCLUDED_
#define _WINDNS_INCLUDED_
#ifdef __cplusplus
extern "C"
{
#endif // __cplusplus
//
// Define QWORD -- not yet defined globally
//
typedef unsigned __int64 QWORD;
//
// DNS public types
//
typedef LONG DNS_STATUS, *PDNS_STATUS;
//
// IP Address
//
typedef DWORD IP4_ADDRESS, *PIP4_ADDRESS;
#define SIZEOF_IP4_ADDRESS (4)
#define IP4_ADDRESS_STRING_LENGTH (15)
#define IP4_ADDRESS_STRING_BUFFER_LENGTH (16)
//
// IP Address Array type
//
typedef struct _IP4_ARRAY
{
DWORD AddrCount;
#ifdef MIDL_PASS
[size_is( AddrCount )] IP4_ADDRESS AddrArray[];
#else
IP4_ADDRESS AddrArray[1];
#endif
}
IP4_ARRAY, *PIP4_ARRAY;
//
// IPv6 Address
//
#ifdef MIDL_PASS
typedef struct
{
#ifdef _WIN64
QWORD IP6Qword[2];
#else
DWORD IP6Dword[4];
#endif
}
IP6_ADDRESS, *PIP6_ADDRESS;
#else
typedef union
{
#ifdef _WIN64
QWORD IP6Qword[2];
#endif
DWORD IP6Dword[4];
WORD IP6Word[8];
BYTE IP6Byte[16];
#ifdef IN6_ADDR
IN6_ADDR In6;
#endif
}
IP6_ADDRESS, *PIP6_ADDRESS;
#endif
// Backward compatibility
typedef IP6_ADDRESS DNS_IP6_ADDRESS, *PDNS_IP6_ADDRESS;
//
// IP6 string max is 45 bytes
// - 6 WORDs in colon+hex (5 chars)
// - last DWORD as IP4 (15 chars)
//
#undef IP6_ADDRESS_STRING_LENGTH
#define IP6_ADDRESS_STRING_LENGTH (47)
#define IP6_ADDRESS_STRING_BUFFER_LENGTH (48)
// backcompat
#define IPV6_ADDRESS_STRING_LENGTH IP6_ADDRESS_STRING_LENGTH
//
// Inline byte flipping -- can be done in registers
//
#define INLINE_WORD_FLIP(out, in) \
{ \
WORD _in = (in); \
(out) = (_in << 8) | (_in >> 8); \
}
#define INLINE_HTONS(out, in) INLINE_WORD_FLIP(out, in)
#define INLINE_NTOHS(out, in) INLINE_WORD_FLIP(out, in)
#define INLINE_DWORD_FLIP(out, in) \
{ \
DWORD _in = (in); \
(out) = ((_in << 8) & 0x00ff0000) | \
(_in << 24) | \
((_in >> 8) & 0x0000ff00) | \
(_in >> 24); \
}
#define INLINE_NTOHL(out, in) INLINE_DWORD_FLIP(out, in)
#define INLINE_HTONL(out, in) INLINE_DWORD_FLIP(out, in)
//
// Inline byte flip and write to packet (unaligned)
//
#define INLINE_WRITE_FLIPPED_WORD( pout, in ) \
INLINE_WORD_FLIP( *((UNALIGNED WORD *)(pout)), in )
#define INLINE_WRITE_FLIPPED_DWORD( pout, in ) \
INLINE_DWORD_FLIP( *((UNALIGNED DWORD *)(pout)), in )
//
// Basic DNS definitions
//
//
// DNS port for both UDP and TCP is 53.
//
#define DNS_PORT_HOST_ORDER (0x0035) // port 53
#define DNS_PORT_NET_ORDER (0x3500)
//
// DNS UDP packets no more than 512 bytes
//
#define DNS_RFC_MAX_UDP_PACKET_LENGTH (512)
//
// DNS Names limited to 255, 63 in any one label
//
#define DNS_MAX_NAME_LENGTH (255)
#define DNS_MAX_LABEL_LENGTH (63)
#define DNS_MAX_NAME_BUFFER_LENGTH (256)
#define DNS_MAX_LABEL_BUFFER_LENGTH (64)
//
// Reverse lookup domain names
//
#define DNS_IP4_REVERSE_DOMAIN_STRING ("in-addr.arpa.")
#define DNS_MAX_IP4_REVERSE_NAME_LENGTH \
(IP_ADDRESS_STRING_LENGTH+1+sizeof(DNS_IP4_REVERSE_DOMAIN_STRING))
#define DNS_MAX_IP4_REVERSE_NAME_BUFFER_LENGTH \
(DNS_MAX_IP4_REVERSE_NAME_LENGTH + 1)
#define DNS_IP6_REVERSE_DOMAIN_STRING ("ip6.int.")
#define DNS_MAX_IP6_REVERSE_NAME_LENGTH \
(64+sizeof(DNS_IP6_REVERSE_DOMAIN_STRING))
#define DNS_MAX_IP6_REVERSE_NAME_BUFFER_LENGTH \
(DNS_MAX_IP6_REVERSE_NAME_LENGTH + 1)
// Combined
#define DNS_MAX_REVERSE_NAME_LENGTH \
DNS_MAX_IP6_REVERSE_NAME_LENGTH \
#define DNS_MAX_REVERSE_NAME_BUFFER_LENGTH \
DNS_MAX_IP6_REVERSE_NAME_BUFFER_LENGTH
//
// DNS Text string limited by size representable
// in a single byte length field
#define DNS_MAX_TEXT_STRING_LENGTH (255)
//
// DNS On-The-Wire Structures
//
#pragma pack(1)
//
// DNS Message Header
//
typedef struct _DNS_HEADER
{
WORD Xid;
BYTE RecursionDesired : 1;
BYTE Truncation : 1;
BYTE Authoritative : 1;
BYTE Opcode : 4;
BYTE IsResponse : 1;
BYTE ResponseCode : 4;
BYTE Reserved : 3;
BYTE RecursionAvailable : 1;
WORD QuestionCount;
WORD AnswerCount;
WORD NameServerCount;
WORD AdditionalCount;
}
DNS_HEADER, *PDNS_HEADER;
//
// Flags as WORD
//
#define DNS_HEADER_FLAGS(pHead) ( *((PWORD)(pHead)+1) )
//
// Byte flip DNS header to\from host order.
//
// Note that this does NOT flip flags, as definition above defines
// flags as individual bytes for direct access to net byte order.
//
#define DNS_BYTE_FLIP_HEADER_COUNTS(pHeader) \
{ \
PDNS_HEADER _head = (pHeader); \
INLINE_HTONS(_head->Xid, _head->Xid ); \
INLINE_HTONS(_head->QuestionCount, _head->QuestionCount ); \
INLINE_HTONS(_head->AnswerCount, _head->AnswerCount ); \
INLINE_HTONS(_head->NameServerCount,_head->NameServerCount ); \
INLINE_HTONS(_head->AdditionalCount,_head->AdditionalCount ); \
}
//
// Question name follows header
//
#define DNS_OFFSET_TO_QUESTION_NAME sizeof(DNS_HEADER)
//
// Question immediately follows header so compressed question name
// 0xC000 | sizeof(DNS_HEADER)
#define DNS_COMPRESSED_QUESTION_NAME (0xC00C)
//
// Packet extraction macros
//
#define DNS_QUESTION_NAME_FROM_HEADER( _pHeader_ ) \
( (PCHAR)( (PDNS_HEADER)(_pHeader_) + 1 ) )
#define DNS_ANSWER_FROM_QUESTION( _pQuestion_ ) \
( (PCHAR)( (PDNS_QUESTION)(_pQuestion_) + 1 ) )
//
// DNS Question
//
typedef struct _DNS_WIRE_QUESTION
{
// Preceded by question name
WORD QuestionType;
WORD QuestionClass;
}
DNS_WIRE_QUESTION, *PDNS_WIRE_QUESTION;
//
// DNS Resource Record
//
typedef struct _DNS_WIRE_RECORD
{
// Preceded by record owner name
WORD RecordType;
WORD RecordClass;
DWORD TimeToLive;
WORD DataLength;
// Followed by record data
}
DNS_WIRE_RECORD, *PDNS_WIRE_RECORD;
#pragma pack()
//
// DNS Query Types
//
#define DNS_OPCODE_QUERY 0 // Query
#define DNS_OPCODE_IQUERY 1 // Obsolete: IP to name
#define DNS_OPCODE_SERVER_STATUS 2 // Obsolete: DNS ping
#define DNS_OPCODE_UNKNOWN 3 // Unknown
#define DNS_OPCODE_NOTIFY 4 // Notify
#define DNS_OPCODE_UPDATE 5 // Dynamic Update
//
// DNS response codes.
//
// Sent in the "ResponseCode" field of a DNS_HEADER.
//
#define DNS_RCODE_NOERROR 0
#define DNS_RCODE_FORMERR 1 // Format error
#define DNS_RCODE_SERVFAIL 2 // Server failure
#define DNS_RCODE_NXDOMAIN 3 // Name error
#define DNS_RCODE_NOTIMPL 4 // Not implemented
#define DNS_RCODE_REFUSED 5 // Refused
#define DNS_RCODE_YXDOMAIN 6 // Domain name should not exist
#define DNS_RCODE_YXRRSET 7 // RR set should not exist
#define DNS_RCODE_NXRRSET 8 // RR set does not exist
#define DNS_RCODE_NOTAUTH 9 // Not authoritative for zone
#define DNS_RCODE_NOTZONE 10 // Name is not zone
#define DNS_RCODE_MAX 15
//
// Extended RCODEs
//
#define DNS_RCODE_BADVERS 16 // Bad EDNS version
#define DNS_RCODE_BADSIG 16 // Bad signature
#define DNS_RCODE_BADKEY 17 // Bad key
#define DNS_RCODE_BADTIME 18 // Bad timestamp
//
// Mappings to friendly names
//
#define DNS_RCODE_NO_ERROR DNS_RCODE_NOERROR
#define DNS_RCODE_FORMAT_ERROR DNS_RCODE_FORMERR
#define DNS_RCODE_SERVER_FAILURE DNS_RCODE_SERVFAIL
#define DNS_RCODE_NAME_ERROR DNS_RCODE_NXDOMAIN
#define DNS_RCODE_NOT_IMPLEMENTED DNS_RCODE_NOTIMPL
//
// DNS Classes
//
// Classes are on the wire as WORDs.
//
// _CLASS_ defines in host order.
// _RCLASS_ defines in net byte order.
//
// Generally we'll avoid byte flip and test class in net byte order.
//
#define DNS_CLASS_INTERNET 0x0001 // 1
#define DNS_CLASS_CSNET 0x0002 // 2
#define DNS_CLASS_CHAOS 0x0003 // 3
#define DNS_CLASS_HESIOD 0x0004 // 4
#define DNS_CLASS_NONE 0x00fe // 254
#define DNS_CLASS_ALL 0x00ff // 255
#define DNS_CLASS_ANY 0x00ff // 255
#define DNS_RCLASS_INTERNET 0x0100 // 1
#define DNS_RCLASS_CSNET 0x0200 // 2
#define DNS_RCLASS_CHAOS 0x0300 // 3
#define DNS_RCLASS_HESIOD 0x0400 // 4
#define DNS_RCLASS_NONE 0xfe00 // 254
#define DNS_RCLASS_ALL 0xff00 // 255
#define DNS_RCLASS_ANY 0xff00 // 255
//
// DNS Record Types
//
// _TYPE_ defines are in host byte order.
// _RTYPE_ defines are in net byte order.
//
// Generally always deal with types in host byte order as we index
// resource record functions by type.
//
#define DNS_TYPE_ZERO 0x0000
// RFC 1034/1035
#define DNS_TYPE_A 0x0001 // 1
#define DNS_TYPE_NS 0x0002 // 2
#define DNS_TYPE_MD 0x0003 // 3
#define DNS_TYPE_MF 0x0004 // 4
#define DNS_TYPE_CNAME 0x0005 // 5
#define DNS_TYPE_SOA 0x0006 // 6
#define DNS_TYPE_MB 0x0007 // 7
#define DNS_TYPE_MG 0x0008 // 8
#define DNS_TYPE_MR 0x0009 // 9
#define DNS_TYPE_NULL 0x000a // 10
#define DNS_TYPE_WKS 0x000b // 11
#define DNS_TYPE_PTR 0x000c // 12
#define DNS_TYPE_HINFO 0x000d // 13
#define DNS_TYPE_MINFO 0x000e // 14
#define DNS_TYPE_MX 0x000f // 15
#define DNS_TYPE_TEXT 0x0010 // 16
// RFC 1183
#define DNS_TYPE_RP 0x0011 // 17
#define DNS_TYPE_AFSDB 0x0012 // 18
#define DNS_TYPE_X25 0x0013 // 19
#define DNS_TYPE_ISDN 0x0014 // 20
#define DNS_TYPE_RT 0x0015 // 21
// RFC 1348
#define DNS_TYPE_NSAP 0x0016 // 22
#define DNS_TYPE_NSAPPTR 0x0017 // 23
// RFC 2065 (DNS security)
#define DNS_TYPE_SIG 0x0018 // 24
#define DNS_TYPE_KEY 0x0019 // 25
// RFC 1664 (X.400 mail)
#define DNS_TYPE_PX 0x001a // 26
// RFC 1712 (Geographic position)
#define DNS_TYPE_GPOS 0x001b // 27
// RFC 1886 (IPv6 Address)
#define DNS_TYPE_AAAA 0x001c // 28
// RFC 1876 (Geographic location)
#define DNS_TYPE_LOC 0x001d // 29
// RFC 2065 (Secure negative response)
#define DNS_TYPE_NXT 0x001e // 30
// Patton (Endpoint Identifier)
#define DNS_TYPE_EID 0x001f // 31
// Patton (Nimrod Locator)
#define DNS_TYPE_NIMLOC 0x0020 // 32
// RFC 2052 (Service location)
#define DNS_TYPE_SRV 0x0021 // 33
// ATM Standard something-or-another (ATM Address)
#define DNS_TYPE_ATMA 0x0022 // 34
// RFC 2168 (Naming Authority Pointer)
#define DNS_TYPE_NAPTR 0x0023 // 35
// RFC 2230 (Key Exchanger)
#define DNS_TYPE_KX 0x0024 // 36
// RFC 2538 (CERT)
#define DNS_TYPE_CERT 0x0025 // 37
// A6 Draft (A6)
#define DNS_TYPE_A6 0x0026 // 38
// DNAME Draft (DNAME)
#define DNS_TYPE_DNAME 0x0027 // 39
// Eastlake (Kitchen Sink)
#define DNS_TYPE_SINK 0x0028 // 40
// RFC 2671 (EDNS OPT)
#define DNS_TYPE_OPT 0x0029 // 41
//
// IANA Reserved
//
#define DNS_TYPE_UINFO 0x0064 // 100
#define DNS_TYPE_UID 0x0065 // 101
#define DNS_TYPE_GID 0x0066 // 102
#define DNS_TYPE_UNSPEC 0x0067 // 103
//
// Query only types (1035, 1995)
// - Crawford (ADDRS)
// - TKEY draft (TKEY)
// - TSIG draft (TSIG)
// - RFC 1995 (IXFR)
// - RFC 1035 (AXFR up)
//
#define DNS_TYPE_ADDRS 0x00f8 // 248
#define DNS_TYPE_TKEY 0x00f9 // 249
#define DNS_TYPE_TSIG 0x00fa // 250
#define DNS_TYPE_IXFR 0x00fb // 251
#define DNS_TYPE_AXFR 0x00fc // 252
#define DNS_TYPE_MAILB 0x00fd // 253
#define DNS_TYPE_MAILA 0x00fe // 254
#define DNS_TYPE_ALL 0x00ff // 255
#define DNS_TYPE_ANY 0x00ff // 255
//
// Temp Microsoft types -- use until get IANA approval for real type
//
#define DNS_TYPE_WINS 0xff01 // 64K - 255
#define DNS_TYPE_WINSR 0xff02 // 64K - 254
#define DNS_TYPE_NBSTAT (DNS_TYPE_WINSR)
//
// DNS Record Types -- Net Byte Order
//
#define DNS_RTYPE_A 0x0100 // 1
#define DNS_RTYPE_NS 0x0200 // 2
#define DNS_RTYPE_MD 0x0300 // 3
#define DNS_RTYPE_MF 0x0400 // 4
#define DNS_RTYPE_CNAME 0x0500 // 5
#define DNS_RTYPE_SOA 0x0600 // 6
#define DNS_RTYPE_MB 0x0700 // 7
#define DNS_RTYPE_MG 0x0800 // 8
#define DNS_RTYPE_MR 0x0900 // 9
#define DNS_RTYPE_NULL 0x0a00 // 10
#define DNS_RTYPE_WKS 0x0b00 // 11
#define DNS_RTYPE_PTR 0x0c00 // 12
#define DNS_RTYPE_HINFO 0x0d00 // 13
#define DNS_RTYPE_MINFO 0x0e00 // 14
#define DNS_RTYPE_MX 0x0f00 // 15
#define DNS_RTYPE_TEXT 0x1000 // 16
#define DNS_RTYPE_RP 0x1100 // 17
#define DNS_RTYPE_AFSDB 0x1200 // 18
#define DNS_RTYPE_X25 0x1300 // 19
#define DNS_RTYPE_ISDN 0x1400 // 20
#define DNS_RTYPE_RT 0x1500 // 21
#define DNS_RTYPE_NSAP 0x1600 // 22
#define DNS_RTYPE_NSAPPTR 0x1700 // 23
#define DNS_RTYPE_SIG 0x1800 // 24
#define DNS_RTYPE_KEY 0x1900 // 25
#define DNS_RTYPE_PX 0x1a00 // 26
#define DNS_RTYPE_GPOS 0x1b00 // 27
#define DNS_RTYPE_AAAA 0x1c00 // 28
#define DNS_RTYPE_LOC 0x1d00 // 29
#define DNS_RTYPE_NXT 0x1e00 // 30
#define DNS_RTYPE_EID 0x1f00 // 31
#define DNS_RTYPE_NIMLOC 0x2000 // 32
#define DNS_RTYPE_SRV 0x2100 // 33
#define DNS_RTYPE_ATMA 0x2200 // 34
#define DNS_RTYPE_NAPTR 0x2300 // 35
#define DNS_RTYPE_KX 0x2400 // 36
#define DNS_RTYPE_CERT 0x2500 // 37
#define DNS_RTYPE_A6 0x2600 // 38
#define DNS_RTYPE_DNAME 0x2700 // 39
#define DNS_RTYPE_SINK 0x2800 // 40
#define DNS_RTYPE_OPT 0x2900 // 41
//
// IANA Reserved
//
#define DNS_RTYPE_UINFO 0x6400 // 100
#define DNS_RTYPE_UID 0x6500 // 101
#define DNS_RTYPE_GID 0x6600 // 102
#define DNS_RTYPE_UNSPEC 0x6700 // 103
//
// Query only types
//
#define DNS_RTYPE_TKEY 0xf900 // 249
#define DNS_RTYPE_TSIG 0xfa00 // 250
#define DNS_RTYPE_IXFR 0xfb00 // 251
#define DNS_RTYPE_AXFR 0xfc00 // 252
#define DNS_RTYPE_MAILB 0xfd00 // 253
#define DNS_RTYPE_MAILA 0xfe00 // 254
#define DNS_RTYPE_ALL 0xff00 // 255
#define DNS_RTYPE_ANY 0xff00 // 255
//
// Temp Microsoft types -- use until get IANA approval for real type
//
#define DNS_RTYPE_WINS 0x01ff // 64K - 255
#define DNS_RTYPE_WINSR 0x02ff // 64K - 254
//
// Record type specific definitions
//
//
// ATMA (ATM address type) formats
//
// Define these directly for any environment (ex NT4)
// without winsock2 ATM support (ws2atm.h)
//
#ifndef ATMA_E164
#define DNS_ATMA_FORMAT_E164 1
#define DNS_ATMA_FORMAT_AESA 2
#define DNS_ATMA_MAX_ADDR_LENGTH (20)
#else
#define DNS_ATMA_FORMAT_E164 ATM_E164
#define DNS_ATMA_FORMAT_AESA ATM_AESA
#define DNS_ATMA_MAX_ADDR_LENGTH ATM_ADDR_SIZE
#endif
#define DNS_ATMA_AESA_ADDR_LENGTH (20)
#define DNS_ATMA_MAX_RECORD_LENGTH (DNS_ATMA_MAX_ADDR_LENGTH+1)
//
// DNSSEC defs
//
// DNSSEC algorithms
#define DNSSEC_ALGORITHM_RSAMD5 1
#define DNSSEC_ALGORITHM_NULL 253
#define DNSSEC_ALGORITHM_PRIVATE 254
// DNSSEC KEY protocol table
#define DNSSEC_PROTOCOL_NONE 0
#define DNSSEC_PROTOCOL_TLS 1
#define DNSSEC_PROTOCOL_EMAIL 2
#define DNSSEC_PROTOCOL_DNSSEC 3
#define DNSSEC_PROTOCOL_IPSEC 4
// DNSSEC KEY flag field
#define DNSSEC_KEY_FLAG_NOAUTH 0x0001
#define DNSSEC_KEY_FLAG_NOCONF 0x0002
#define DNSSEC_KEY_FLAG_FLAG2 0x0004
#define DNSSEC_KEY_FLAG_EXTEND 0x0008
#define DNSSEC_KEY_FLAG_
#define DNSSEC_KEY_FLAG_FLAG4 0x0010
#define DNSSEC_KEY_FLAG_FLAG5 0x0020
// bits 6,7 are name type
#define DNSSEC_KEY_FLAG_USER 0x0000
#define DNSSEC_KEY_FLAG_ZONE 0x0040
#define DNSSEC_KEY_FLAG_HOST 0x0080
#define DNSSEC_KEY_FLAG_NTPE3 0x00c0
// bits 8-11 are reserved for future use
#define DNSSEC_KEY_FLAG_FLAG8 0x0100
#define DNSSEC_KEY_FLAG_FLAG9 0x0200
#define DNSSEC_KEY_FLAG_FLAG10 0x0400
#define DNSSEC_KEY_FLAG_FLAG11 0x0800
// bits 12-15 are sig field
#define DNSSEC_KEY_FLAG_SIG0 0x0000
#define DNSSEC_KEY_FLAG_SIG1 0x1000
#define DNSSEC_KEY_FLAG_SIG2 0x2000
#define DNSSEC_KEY_FLAG_SIG3 0x3000
#define DNSSEC_KEY_FLAG_SIG4 0x4000
#define DNSSEC_KEY_FLAG_SIG5 0x5000
#define DNSSEC_KEY_FLAG_SIG6 0x6000
#define DNSSEC_KEY_FLAG_SIG7 0x7000
#define DNSSEC_KEY_FLAG_SIG8 0x8000
#define DNSSEC_KEY_FLAG_SIG9 0x9000
#define DNSSEC_KEY_FLAG_SIG10 0xa000
#define DNSSEC_KEY_FLAG_SIG11 0xb000
#define DNSSEC_KEY_FLAG_SIG12 0xc000
#define DNSSEC_KEY_FLAG_SIG13 0xd000
#define DNSSEC_KEY_FLAG_SIG14 0xe000
#define DNSSEC_KEY_FLAG_SIG15 0xf000
//
// TKEY modes
//
#define DNS_TKEY_MODE_SERVER_ASSIGN 1
#define DNS_TKEY_MODE_DIFFIE_HELLMAN 2
#define DNS_TKEY_MODE_GSS 3
#define DNS_TKEY_MODE_RESOLVER_ASSIGN 4
//
// WINS + NBSTAT flag field
//
#define DNS_WINS_FLAG_SCOPE (0x80000000)
#define DNS_WINS_FLAG_LOCAL (0x00010000)
//
// Helpful checks
//
#define IS_WORD_ALIGNED(p) ( !((UINT_PTR)(p) & (UINT_PTR)1) )
#define IS_DWORD_ALIGNED(p) ( !((UINT_PTR)(p) & (UINT_PTR)3) )
#define IS_QWORD_ALIGNED(p) ( !((UINT_PTR)(p) & (UINT_PTR)7) )
//
// DNS config API
//
//
// Types of DNS configuration info
//
typedef enum
{
// In Win2K
DnsConfigPrimaryDomainName_W,
DnsConfigPrimaryDomainName_A,
DnsConfigPrimaryDomainName_UTF8,
// Not available yet
DnsConfigAdapterDomainName_W,
DnsConfigAdapterDomainName_A,
DnsConfigAdapterDomainName_UTF8,
// In Win2K
DnsConfigDnsServerList,
// Not available yet
DnsConfigSearchList,
DnsConfigAdapterInfo,
// In Win2K
DnsConfigPrimaryHostNameRegistrationEnabled,
DnsConfigAdapterHostNameRegistrationEnabled,
DnsConfigAddressRegistrationMaxCount,
// In WindowsXP
DnsConfigHostName_W,
DnsConfigHostName_A,
DnsConfigHostName_UTF8,
DnsConfigFullHostName_W,
DnsConfigFullHostName_A,
DnsConfigFullHostName_UTF8
}
DNS_CONFIG_TYPE;
//
// Config API flags
//
//
// Causes config info to be allocated with LocalAlloc()
//
#define DNS_CONFIG_FLAG_ALLOC (0x00000001)
DNS_STATUS
WINAPI
DnsQueryConfig(
IN DNS_CONFIG_TYPE Config,
IN DWORD Flag,
IN PWSTR pwsAdapterName,
IN PVOID pReserved,
OUT PVOID pBuffer,
IN OUT PDWORD pBufferLength
);
//
// DNS resource record structure
//
//
// Record data for specific types
//
typedef struct
{
IP4_ADDRESS IpAddress;
}
DNS_A_DATA, *PDNS_A_DATA;
typedef struct
{
LPTSTR pNameHost;
}
DNS_PTR_DATA, *PDNS_PTR_DATA;
typedef struct
{
LPTSTR pNamePrimaryServer;
LPTSTR pNameAdministrator;
DWORD dwSerialNo;
DWORD dwRefresh;
DWORD dwRetry;
DWORD dwExpire;
DWORD dwDefaultTtl;
}
DNS_SOA_DATA, *PDNS_SOA_DATA;
typedef struct
{
LPTSTR pNameMailbox;
LPTSTR pNameErrorsMailbox;
}
DNS_MINFO_DATA, *PDNS_MINFO_DATA;
typedef struct
{
LPTSTR pNameExchange;
WORD wPreference;
WORD Pad; // keep ptrs DWORD aligned
}
DNS_MX_DATA, *PDNS_MX_DATA;
typedef struct
{
DWORD dwStringCount;
#ifdef MIDL_PASS
[size_is(dwStringCount)] LPTSTR pStringArray[];
#else
LPTSTR pStringArray[1];
#endif
}
DNS_TXT_DATA, *PDNS_TXT_DATA;
typedef struct
{
DWORD dwByteCount;
#ifdef MIDL_PASS
[size_is(dwByteCount)] BYTE Data[];
#else
BYTE Data[1];
#endif
}
DNS_NULL_DATA, *PDNS_NULL_DATA;
typedef struct
{
IP4_ADDRESS IpAddress;
UCHAR chProtocol;
BYTE BitMask[1];
}
DNS_WKS_DATA, *PDNS_WKS_DATA;
typedef struct
{
DNS_IP6_ADDRESS Ip6Address;
}
DNS_AAAA_DATA, *PDNS_AAAA_DATA;
typedef struct
{
LPTSTR pNameSigner;
WORD wTypeCovered;
BYTE chAlgorithm;
BYTE chLabelCount;
DWORD dwOriginalTtl;
DWORD dwExpiration;
DWORD dwTimeSigned;
WORD wKeyTag;
WORD Pad; // keep byte field aligned
BYTE Signature[1];
}
DNS_SIG_DATA, *PDNS_SIG_DATA;
typedef struct
{
WORD wFlags;
BYTE chProtocol;
BYTE chAlgorithm;
BYTE Key[1];
}
DNS_KEY_DATA, *PDNS_KEY_DATA;
typedef struct
{
WORD wVersion;
WORD wSize;
WORD wHorPrec;
WORD wVerPrec;
DWORD dwLatitude;
DWORD dwLongitude;
DWORD dwAltitude;
}
DNS_LOC_DATA, *PDNS_LOC_DATA;
typedef struct
{
LPTSTR pNameNext;
WORD wNumTypes;
WORD wTypes[1];
}
DNS_NXT_DATA, *PDNS_NXT_DATA;
typedef struct
{
LPTSTR pNameTarget;
WORD wPriority;
WORD wWeight;
WORD wPort;
WORD Pad; // keep ptrs DWORD aligned
}
DNS_SRV_DATA, *PDNS_SRV_DATA;
typedef struct
{
BYTE AddressType;
BYTE Address[ DNS_ATMA_MAX_ADDR_LENGTH ];
// E164 -- Null terminated string of less than
// DNS_ATMA_MAX_ADDR_LENGTH
//
// For NSAP (AESA) BCD encoding of exactly
// DNS_ATMA_AESA_ADDR_LENGTH
}
DNS_ATMA_DATA, *PDNS_ATMA_DATA;
typedef struct
{
LPTSTR pNameAlgorithm;
PBYTE pAlgorithmPacket;
PBYTE pKey;
PBYTE pOtherData;
DWORD dwCreateTime;
DWORD dwExpireTime;
WORD wMode;
WORD wError;
WORD wKeyLength;
WORD wOtherLength;
UCHAR cAlgNameLength;
BOOL bPacketPointers;
}
DNS_TKEY_DATA, *PDNS_TKEY_DATA;
typedef struct
{
LPTSTR pNameAlgorithm;
PBYTE pAlgorithmPacket;
PBYTE pSignature;
PBYTE pOtherData;
LONGLONG i64CreateTime;
WORD wFudgeTime;
WORD wOriginalXid;
WORD wError;
WORD wSigLength;
WORD wOtherLength;
UCHAR cAlgNameLength;
BOOL bPacketPointers;
}
DNS_TSIG_DATA, *PDNS_TSIG_DATA;
//
// MS only types -- only hit the wire in MS-MS zone transfer
//
typedef struct
{
DWORD dwMappingFlag;
DWORD dwLookupTimeout;
DWORD dwCacheTimeout;
DWORD cWinsServerCount;
IP4_ADDRESS WinsServers[1];
}
DNS_WINS_DATA, *PDNS_WINS_DATA;
typedef struct
{
DWORD dwMappingFlag;
DWORD dwLookupTimeout;
DWORD dwCacheTimeout;
LPTSTR pNameResultDomain;
}
DNS_WINSR_DATA, *PDNS_WINSR_DATA;
//
// Length of non-fixed-length data types
//
#define DNS_TEXT_RECORD_LENGTH(StringCount) \
(FIELD_OFFSET(DNS_TXT_DATA, pStringArray) + ((StringCount) * sizeof(PCHAR)))
#define DNS_NULL_RECORD_LENGTH(ByteCount) \
(FIELD_OFFSET(DNS_NULL_DATA, Data) + (ByteCount))
#define DNS_WKS_RECORD_LENGTH(ByteCount) \
(FIELD_OFFSET(DNS_WKS_DATA, BitMask) + (ByteCount))
#define DNS_WINS_RECORD_LENGTH(IpCount) \
(FIELD_OFFSET(DNS_WINS_DATA, WinsServers) + ((IpCount) * sizeof(IP4_ADDRESS)))
//
// Record flags
//
typedef struct _DnsRecordFlags
{
DWORD Section : 2;
DWORD Delete : 1;
DWORD CharSet : 2;
DWORD Unused : 3;
DWORD Reserved : 24;
}
DNS_RECORD_FLAGS;
//
// Wire Record Sections
//
// Useable both in record flags "Section" and as index into
// wire message header section counts.
//
typedef enum _DnsSection
{
DnsSectionQuestion,
DnsSectionAnswer,
DnsSectionAuthority,
DnsSectionAddtional,
}
DNS_SECTION;
// Update message section names
#define DnsSectionZone DnsSectionQuestion
#define DnsSectionPrereq DnsSectionAnswer
#define DnsSectionUpdate DnsSectionAuthority
//
// Record flags as bit flags
// These may be or'd together to set the fields
//
// RR Section in packet
#define DNSREC_SECTION (0x00000003)
#define DNSREC_QUESTION (0x00000000)
#define DNSREC_ANSWER (0x00000001)
#define DNSREC_AUTHORITY (0x00000002)
#define DNSREC_ADDITIONAL (0x00000003)
// RR Section in packet (update)
#define DNSREC_ZONE (0x00000000)
#define DNSREC_PREREQ (0x00000001)
#define DNSREC_UPDATE (0x00000002)
// Delete RR (update) or No-exist (prerequisite)
#define DNSREC_DELETE (0x00000004)
#define DNSREC_NOEXIST (0x00000004)
//
// Record \ RR set structure
//
// Note: The dwReserved flag serves to insure that the substructures
// start on 64-bit boundaries. Do NOT pack this structure, as the
// substructures may contain pointers or int64 values which are
// properly aligned unpacked.
//
#ifdef MIDL_PASS
#define PDNS_RECORD PVOID
#else
typedef struct _DnsRecord
{
struct _DnsRecord * pNext;
LPTSTR pName;
WORD wType;
WORD wDataLength; // Not referenced for DNS record types
// defined above.
union
{
DWORD DW; // flags as DWORD
DNS_RECORD_FLAGS S; // flags as structure
} Flags;
DWORD dwTtl;
DWORD dwReserved;
// Record Data
union
{
DNS_A_DATA A;
DNS_SOA_DATA SOA, Soa;
DNS_PTR_DATA PTR, Ptr,
NS, Ns,
CNAME, Cname,
MB, Mb,
MD, Md,
MF, Mf,
MG, Mg,
MR, Mr;
DNS_MINFO_DATA MINFO, Minfo,
RP, Rp;
DNS_MX_DATA MX, Mx,
AFSDB, Afsdb,
RT, Rt;
DNS_TXT_DATA HINFO, Hinfo,
ISDN, Isdn,
TXT, Txt,
X25;
DNS_NULL_DATA Null;
DNS_WKS_DATA WKS, Wks;
DNS_AAAA_DATA AAAA;
DNS_KEY_DATA KEY, Key;
DNS_SIG_DATA SIG, Sig;
DNS_ATMA_DATA ATMA, Atma;
DNS_NXT_DATA NXT, Nxt;
DNS_SRV_DATA SRV, Srv;
DNS_TKEY_DATA TKEY, Tkey;
DNS_TSIG_DATA TSIG, Tsig;
DNS_WINS_DATA WINS, Wins;
DNS_WINSR_DATA WINSR, WinsR, NBSTAT, Nbstat;
} Data;
}
DNS_RECORD, *PDNS_RECORD;
//
// Header or fixed size of DNS_RECORD
//
#define DNS_RECORD_FIXED_SIZE FIELD_OFFSET( DNS_RECORD, Data )
#define SIZEOF_DNS_RECORD_HEADER DNS_RECORD_FIXED_SIZE
#endif // PRIVATE_DNS_RECORD
//
// Resource record set building
//
// pFirst points to first record in list.
// pLast points to last record in list.
//
typedef struct _DnsRRSet
{
PDNS_RECORD pFirstRR;
PDNS_RECORD pLastRR;
}
DNS_RRSET, *PDNS_RRSET;
//
// To init pFirst is NULL.
// But pLast points at the location of the pFirst pointer -- essentially
// treating the pFirst ptr as a DNS_RECORD. (It is a DNS_RECORD with
// only a pNext field, but that's the only part we use.)
//
// Then when the first record is added to the list, the pNext field of
// this dummy record (which corresponds to pFirst's value) is set to
// point at the first record. So pFirst then properly points at the
// first record.
//
// (This works only because pNext is the first field in a
// DNS_RECORD structure and hence casting a PDNS_RECORD ptr to
// PDNS_RECORD* and dereferencing yields its pNext field)
//
// Use TERMINATE when have built RR set by grabbing records out of
// existing set. This makes sure that at the end, the last RR is
// properly NULL terminated.
//
#define DNS_RRSET_INIT( rrset ) \
{ \
PDNS_RRSET _prrset = &(rrset); \
_prrset->pFirstRR = NULL; \
_prrset->pLastRR = (PDNS_RECORD) &_prrset->pFirstRR; \
}
#define DNS_RRSET_ADD( rrset, pnewRR ) \
{ \
PDNS_RRSET _prrset = &(rrset); \
PDNS_RECORD _prrnew = (pnewRR); \
_prrset->pLastRR->pNext = _prrnew; \
_prrset->pLastRR = _prrnew; \
}
#define DNS_RRSET_TERMINATE( rrset ) \
{ \
PDNS_RRSET _prrset = &(rrset); \
_prrset->pLastRR->pNext = NULL; \
}
//
// Record set manipulation
//
//
// Record Copy
// Record copy functions also do conversion between character sets.
//
// Note, it might be advisable to directly expose non-Ex copy
// functions _W, _A for record and set, to avoid exposing the
// conversion enum.
//
typedef enum _DNS_CHARSET
{
DnsCharSetUnknown,
DnsCharSetUnicode,
DnsCharSetUtf8,
DnsCharSetAnsi,
}
DNS_CHARSET;
PDNS_RECORD
WINAPI
DnsRecordCopyEx(
IN PDNS_RECORD pRecord,
IN DNS_CHARSET CharSetIn,
IN DNS_CHARSET CharSetOut
);
PDNS_RECORD
WINAPI
DnsRecordSetCopyEx(
IN PDNS_RECORD pRecordSet,
IN DNS_CHARSET CharSetIn,
IN DNS_CHARSET CharSetOut
);
#ifdef UNICODE
#define DnsRecordCopy(pRR) \
DnsRecordCopyEx( (pRR), DnsCharSetUnicode, DnsCharSetUnicode )
#define DnsRecordSetCopy(pRR) \
DnsRecordSetCopyEx( (pRR), DnsCharSetUnicode, DnsCharSetUnicode )
#else
#define DnsRecordCopy(pRR) \
DnsRecordCopyEx( (pRR), DnsCharSetAnsi, DnsCharSetAnsi )
#define DnsRecordSetCopy(pRR) \
DnsRecordSetCopyEx( (pRR), DnsCharSetAnsi, DnsCharSetAnsi )
#endif
//
// Record Compare
//
// Note: these routines only compare records of the SAME character set.
// (ANSI, unicode or UTF8). Furthermore the routines assume the character
// set is indicated within the record. If compare of user created, rather
// than DNS API created record lists is desired, then caller should use
// DnsRecordCopy API and compare copies.
//
BOOL
WINAPI
DnsRecordCompare(
IN PDNS_RECORD pRecord1,
IN PDNS_RECORD pRecord2
);
BOOL
WINAPI
DnsRecordSetCompare(
IN OUT PDNS_RECORD pRR1,
IN OUT PDNS_RECORD pRR2,
OUT PDNS_RECORD * ppDiff1,
OUT PDNS_RECORD * ppDiff2
);
//
// Detach next record set from record list
//
PDNS_RECORD
DnsRecordSetDetach(
IN OUT PDNS_RECORD pRecordList
);
//
// Free record list
//
// Only supported free is deep free of entire record list with LocalFree().
// This correctly frees record list returned by DnsQuery() or DnsRecordSetCopy()
//
typedef enum
{
DnsFreeFlat = 0,
DnsFreeRecordList
}
DNS_FREE_TYPE;
#define DnsFreeRecordListDeep DnsFreeRecordList
VOID
WINAPI
DnsRecordListFree(
IN OUT PDNS_RECORD pRecordList,
IN DNS_FREE_TYPE FreeType
);
VOID
WINAPI
DnsFree(
IN OUT PVOID pData,
IN DNS_FREE_TYPE FreeType
);
//
// DNS Query API
//
//
// Options for DnsQuery
//
#define DNS_QUERY_STANDARD 0x00000000
#define DNS_QUERY_ACCEPT_TRUNCATED_RESPONSE 0x00000001
#define DNS_QUERY_USE_TCP_ONLY 0x00000002
#define DNS_QUERY_NO_RECURSION 0x00000004
#define DNS_QUERY_BYPASS_CACHE 0x00000008
#define DNS_QUERY_NO_WIRE_QUERY 0x00000010
#define DNS_QUERY_NO_LOCAL_NAME 0x00000020
#define DNS_QUERY_NO_HOSTS_FILE 0x00000040
#define DNS_QUERY_NO_NETBT 0x00000080
#define DNS_QUERY_WIRE_ONLY 0x00000100
#define DNS_QUERY_RETURN_MESSAGE 0x00000200
#define DNS_QUERY_TREAT_AS_FQDN 0x00001000
#define DNS_QUERY_DONT_RESET_TTL_VALUES 0x00100000
#define DNS_QUERY_RESERVED 0xff000000
// Backward compatibility with Win2K
// Do not use
#define DNS_QUERY_CACHE_ONLY DNS_QUERY_NO_WIRE_QUERY
DNS_STATUS
WINAPI
DnsQuery_A(
IN PCSTR pszName,
IN WORD wType,
IN DWORD Options,
IN PIP4_ARRAY aipServers OPTIONAL,
IN OUT PDNS_RECORD * ppQueryResults OPTIONAL,
IN OUT PVOID * pReserved OPTIONAL
);
DNS_STATUS
WINAPI
DnsQuery_UTF8(
IN PCSTR pszName,
IN WORD wType,
IN DWORD Options,
IN PIP4_ARRAY aipServers OPTIONAL,
IN OUT PDNS_RECORD * ppQueryResults OPTIONAL,
IN OUT PVOID * pReserved OPTIONAL
);
DNS_STATUS
WINAPI
DnsQuery_W(
IN PCWSTR pszName,
IN WORD wType,
IN DWORD Options,
IN PIP4_ARRAY aipServers OPTIONAL,
IN OUT PDNS_RECORD * ppQueryResults OPTIONAL,
IN OUT PVOID * pReserved OPTIONAL
);
#ifdef UNICODE
#define DnsQuery DnsQuery_W
#else
#define DnsQuery DnsQuery_A
#endif
//
// DNS Update API
//
// DnsAcquireContextHandle
// DnsReleaseContextHandle
// DnsModifyRecordsInSet
// DnsReplaceRecordSet
//
//
// Update flags
//
#define DNS_UPDATE_SECURITY_USE_DEFAULT 0x00000000
#define DNS_UPDATE_SECURITY_OFF 0x00000010
#define DNS_UPDATE_SECURITY_ON 0x00000020
#define DNS_UPDATE_SECURITY_ONLY 0x00000100
#define DNS_UPDATE_CACHE_SECURITY_CONTEXT 0x00000200
#define DNS_UPDATE_TEST_USE_LOCAL_SYS_ACCT 0x00000400
#define DNS_UPDATE_FORCE_SECURITY_NEGO 0x00000800
#define DNS_UPDATE_TRY_ALL_MASTER_SERVERS 0x00001000
#define DNS_UPDATE_SKIP_NO_UPDATE_ADAPTERS 0x00002000
#define DNS_UPDATE_RESERVED 0xffff0000
//
// Note: pCredentials paramater is currently respectively
// PSEC_WINNT_AUTH_IDENTITY_W or PSEC_WINNT_AUTH_IDENTITY_A.
// Using PVOID to obviate the need for including rpcdce.h
// in order to include this file and to leave open the
// possibility of alternative credential specifications in
// the future.
//
DNS_STATUS
WINAPI
DnsAcquireContextHandle_W(
IN DWORD CredentialFlags,
IN PVOID pCredentials, OPTIONAL
//IN PSEC_WINNT_AUTH_IDENTITY_W pCredentials,
OUT PHANDLE pContextHandle
);
DNS_STATUS
WINAPI
DnsAcquireContextHandle_A(
IN DWORD CredentialFlags,
IN PVOID pCredentials, OPTIONAL
//IN PSEC_WINNT_AUTH_IDENTITY_A pCredentials,
OUT PHANDLE pContextHandle
);
#ifdef UNICODE
#define DnsAcquireContextHandle DnsAcquireContextHandle_W
#else
#define DnsAcquireContextHandle DnsAcquireContextHandle_A
#endif
VOID
WINAPI
DnsReleaseContextHandle(
IN HANDLE hContext
);
//
// Dynamic Update API
//
DNS_STATUS
WINAPI
DnsModifyRecordsInSet_W(
IN PDNS_RECORD pAddRecords,
IN PDNS_RECORD pDeleteRecords,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
DNS_STATUS
WINAPI
DnsModifyRecordsInSet_A(
IN PDNS_RECORD pAddRecords,
IN PDNS_RECORD pDeleteRecords,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
DNS_STATUS
WINAPI
DnsModifyRecordsInSet_UTF8(
IN PDNS_RECORD pAddRecords,
IN PDNS_RECORD pDeleteRecords,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
#ifdef UNICODE
#define DnsModifyRecordsInSet DnsModifyRecordsInSet_W
#else
#define DnsModifyRecordsInSet DnsModifyRecordsInSet_A
#endif
DNS_STATUS
WINAPI
DnsReplaceRecordSetW(
IN PDNS_RECORD pNewSet,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
DNS_STATUS
WINAPI
DnsReplaceRecordSetA(
IN PDNS_RECORD pNewSet,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
DNS_STATUS
WINAPI
DnsReplaceRecordSetUTF8(
IN PDNS_RECORD pNewSet,
IN DWORD Options,
IN HANDLE hContext, OPTIONAL
IN PIP4_ARRAY pServerList, OPTIONAL
IN PVOID pReserved
);
#ifdef UNICODE
#define DnsReplaceRecordSet DnsReplaceRecordSetW
#else
#define DnsReplaceRecordSet DnsReplaceRecordSetA
#endif
//
// DNS name validation
//
typedef enum _DNS_NAME_FORMAT
{
DnsNameDomain,
DnsNameDomainLabel,
DnsNameHostnameFull,
DnsNameHostnameLabel,
DnsNameWildcard,
DnsNameSrvRecord
}
DNS_NAME_FORMAT;
DNS_STATUS
DnsValidateName_UTF8(
IN LPCSTR pszName,
IN DNS_NAME_FORMAT Format
);
DNS_STATUS
DnsValidateName_W(
IN LPCWSTR pwszName,
IN DNS_NAME_FORMAT Format
);
DNS_STATUS
DnsValidateName_A(
IN LPCSTR pszName,
IN DNS_NAME_FORMAT Format
);
#ifdef UNICODE
#define DnsValidateName(p,f) DnsValidateName_W( (p), (f) )
#else
#define DnsValidateName(p,f) DnsValidateName_A( (p), (f) )
#endif
//
// DNS name comparison
//
BOOL
WINAPI
DnsNameCompare_A(
IN LPSTR pName1,
IN LPSTR pName2
);
BOOL
WINAPI
DnsNameCompare_W(
IN LPWSTR pName1,
IN LPWSTR pName2
);
#ifdef UNICODE
#define DnsNameCompare(n1,n2) DnsNameCompare_W( (n1),(n2) )
#else
#define DnsNameCompare(n1,n2) DnsNameCompare_A( (n1),(n2) )
#endif
//
// DNS message "roll-your-own" routines
//
typedef struct _DNS_MESSAGE_BUFFER
{
DNS_HEADER MessageHead;
CHAR MessageBody[1];
}
DNS_MESSAGE_BUFFER, *PDNS_MESSAGE_BUFFER;
BOOL
WINAPI
DnsWriteQuestionToBuffer_W(
IN OUT PDNS_MESSAGE_BUFFER pDnsBuffer,
IN OUT LPDWORD pdwBufferSize,
IN LPWSTR pszName,
IN WORD wType,
IN WORD Xid,
IN BOOL fRecursionDesired
);
BOOL WINAPI
DnsWriteQuestionToBuffer_UTF8(
IN OUT PDNS_MESSAGE_BUFFER pDnsBuffer,
IN OUT LPDWORD pdwBufferSize,
IN LPSTR pszName,
IN WORD wType,
IN WORD Xid,
IN BOOL fRecursionDesired
);
DNS_STATUS
WINAPI
DnsExtractRecordsFromMessage_W(
IN PDNS_MESSAGE_BUFFER pDnsBuffer,
IN WORD wMessageLength,
OUT PDNS_RECORD * ppRecord
);
DNS_STATUS
WINAPI
DnsExtractRecordsFromMessage_UTF8(
IN PDNS_MESSAGE_BUFFER pDnsBuffer,
IN WORD wMessageLength,
OUT PDNS_RECORD * ppRecord
);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _WINDNS_INCLUDED_
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