249 lines
7.9 KiB
C
249 lines
7.9 KiB
C
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/*++
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Copyright (c) 1989-1999 Microsoft Corporation
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Module Name:
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ntfsprop.h
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Abstract:
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This module contains the structure definitions for nt property Fsctl calls.
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Author:
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Mark Zbikowski (MarkZ) 23-April-1996
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--*/
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#ifndef _NTFSPROP_
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#define _NTFSPROP_
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// WARNING! This file requires OBJIDL.H.
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//
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//
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// VARIABLE_STRUCTURE_SIZE returns the size of a structure S that contains
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// an array of C structures V
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//
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#define VARIABLE_STRUCTURE_SIZE(S,V,C) ((int)sizeof( S ) + ((C) - 1) * (int)sizeof( V ))
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//
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// COUNTED_STRING is length-preceded unicode string. This does NOT include
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// a trailing L'\0'
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//
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typedef struct _COUNTED_STRING
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{
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USHORT Length;
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WCHAR Text[1];
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} COUNTED_STRING, *PCOUNTED_STRING;
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#define COUNTED_STRING_SIZE(l) \
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(sizeof( COUNTED_STRING ) - sizeof ( WCHAR ) + (l))
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#define COUNTED_STRING_LENGTH(c) \
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((c)->Length)
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#define COUNTED_STRING_TEXT(c) \
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(&(c)->Text[0])
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//
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// PROPERTY_SPECIFIER is a serialized form of a PROPSPEC. Instead of
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// a LPWSTR, there is an offset from the beginning of the
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// PROPERTY_SPECIFICATIONS to a COUNTED_STRING
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//
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// #define PRSPEC_LPWSTR ( 0 )
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// #define PRSPEC_PROPID ( 1 )
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typedef struct _PROPERTY_SPECIFIER
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{
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ULONG Variant; // Distinguish the type
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union { // Switch on Variant
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PROPID Id; // Property ID
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ULONG NameOffset; // Offset to COUNTED_STRING
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};
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} PROPERTY_SPECIFIER, *PPROPERTY_SPECIFIER;
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//
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// PROPERTY_SPECIFICATIONS is a serialized form of an array PROPERTY_SPECIFIERs.
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// Immediately following PROPERTY_SPECIFICATIONS on a USHORT boundary are
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// of the name strings. Each name string is a COUNTED_STRING
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//
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typedef struct _PROPERTY_SPECIFICATIONS {
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ULONG Length; // Length in bytes of structure and name strings
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ULONG Count; // Count of PROPERTY_SPECIFIERS
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PROPERTY_SPECIFIER Specifiers[1]; // Array of actual specifiers, length Count
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} PROPERTY_SPECIFICATIONS, *PPROPERTY_SPECIFICATIONS;
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#define PROPERTY_SPECIFICATIONS_SIZE(c) \
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(VARIABLE_STRUCTURE_SIZE( PROPERTY_SPECIFICATIONS, PROPERTY_SPECIFIER, (c) ))
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#define PROPERTY_SPECIFIER_ID(PS,I) \
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((PS)->Specifiers[(I)].Id)
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#define PROPERTY_SPECIFIER_COUNTED_STRING(PS,I) \
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((PCOUNTED_STRING)Add2Ptr( (PS), (PS)->Specifiers[(I)].NameOffset))
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#define PROPERTY_SPECIFIER_NAME(PS,I) \
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(&PROPERTY_SPECIFIER_COUNTED_STRING( PS, I )->Text[0])
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#define PROPERTY_SPECIFIER_NAME_LENGTH(PS,I) \
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(PROPERTY_SPECIFIER_COUNTED_STRING( PS, I )->Length)
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//
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// PROPERTY_VALUES is a serialized form of an array of SERIALIZEDPROPERTYVALUES.
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// Immediately following the structure are the values, each of which is on a DWORD
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// boundary. The last PropertyValue (count+1) is used only to help determine the
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// size of the last property value. The offsets to the values are relative
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// to the address of the PROPERTY_VALUES structure itself.
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//
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typedef struct _PROPERTY_VALUES {
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ULONG Length; // Length in bytes of structure and values
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ULONG Count; // Count of SERIALIZEDPROPERTYVALUES
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ULONG PropertyValueOffset[1]; // Array of offsets to actual values, length count + 1
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} PROPERTY_VALUES, *PPROPERTY_VALUES;
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#define PROPERTY_VALUES_SIZE(c) \
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(VARIABLE_STRUCTURE_SIZE( PROPERTY_VALUES, ULONG, (c) + 1 ))
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#define PROPERTY_VALUE_LENGTH(v,i) \
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((v)->PropertyValueOffset[(i) + 1] - (v)->PropertyValueOffset[(i)])
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#define PROPERTY_VALUE(v,i) \
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((SERIALIZEDPROPERTYVALUE *) Add2Ptr( (v), (v)->PropertyValueOffset[(i)]))
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//
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// PROPERTY_IDS is a serialized form of an array of PROPIDs
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//
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typedef struct _PROPERTY_IDS {
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ULONG Count; // Count of the number of propids
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PROPID PropertyIds[1]; // Array of propids, length Count
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} PROPERTY_IDS, *PPROPERTY_IDS;
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#define PROPERTY_IDS_SIZE(c) \
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(VARIABLE_STRUCTURE_SIZE( PROPERTY_IDS, PROPID, (c) ))
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#define PROPERTY_ID(p,i) \
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((p)->PropertyIds[i])
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//
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// PROPERTY_NAMES is a serialized array of strings's. Following the structure
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// are the individual strings, each of which is on a WCHAR boundary. The
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// offsets to the property names are relative to the beginning of the
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// PROPERTY_NAMES structure. There are count+1 offsets allowing the length
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// of each to be calculated.
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//
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typedef struct _PROPERTY_NAMES {
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ULONG Length; // Length in bytes of structure and values
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ULONG Count; // Count of strings
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ULONG PropertyNameOffset[1]; // Array of offsets to property names.
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} PROPERTY_NAMES, *PPROPERTY_NAMES;
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#define PROPERTY_NAMES_SIZE(c) \
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(VARIABLE_STRUCTURE_SIZE( PROPERTY_NAMES, ULONG, (c) + 1 ))
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#define PROPERTY_NAME_LENGTH(v,i) \
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((v)->PropertyNameOffset[(i) + 1] - (v)->PropertyNameOffset[(i)])
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#define PROPERTY_NAME(v,i) \
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((PWCHAR) Add2Ptr( (v), (v)->PropertyNameOffset[(i)]))
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//
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// All property output buffers are preceded by PROPERTY_OUTPUT_HEADER
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// which contains the amount of data returned. If STATUS_BUFFER_OVERFLOW
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// is returned, the Length field contains the length required to satisfy
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// the request.
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//
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typedef struct _PROPERTY_OUTPUT_HEADER {
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ULONG Length; // Total length in bytes of output buffer
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} PROPERTY_OUTPUT_HEADER, *PPROPERTY_OUTPUT_HEADER;
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//
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// PROPERTY_READ_CONTROL is the structure used to control all property read
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// operations. Following the structure on a DWORD boundary is either
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// an instaence of PROPERTY_IDS or PROPERTY_SPECIFICATIONS, depending on
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// the operation code.
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//
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// On successful output, the data buffer will contain, on DWORD boundaries,
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// in order PROPERTY_VALUES, PROPERTY_IDS, and PROPERTY_NAMES. Each structure
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// may be absent depending on the setting of the operation code:
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//
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// PRC_READ_PROP: PROPERTY_SPECIFICATIONS => PROPERTY_OUTPUT_HEADER
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// PROPERTY_VALUES
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//
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// PRC_READ_NAME: PROPERTY_IDS => PROPERTY_OUTPUT_HEADER
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// PROPERTY_NAMES
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//
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// / PROPERTY_OUTPUT_HEADER
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// PRC_READ_ALL: <empty> => PROPERTY_IDS
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// \ PROPERTY_NAMES
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// PROPERTY_VALUES
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//
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typedef enum _READ_CONTROL_OPERATION {
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PRC_READ_PROP = 0,
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PRC_READ_NAME = 1,
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PRC_READ_ALL = 2,
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} READ_CONTROL_OPERATION;
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typedef struct _PROPERTY_READ_CONTROL {
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READ_CONTROL_OPERATION Op;
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} PROPERTY_READ_CONTROL, *PPROPERTY_READ_CONTROL;
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//
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// PROPERTY_WRITE_CONTROL is the structure used to control all property write
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// operations. Following the structure on a DWORD boundary is either an instance
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// of PROPERTY_IDS or PROPERTY_SPECIFICATIONS (used to control which properties are
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// being changed) and followed by PROPERTY_VALUES and PROPERTY_NAMES. The
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// presence of these are dependent on the operation code.
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//
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// On successful outputs, the data buffer will contain, on DWORD boundaries,
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// in order PROPERTY_IDS. Each structure may be absent
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// depending on the setting of the operation code:
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//
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// PWC_WRITE_PROP: PROPERTY_SPECIFICATIONS \__/ PROPERTY_OUTPUT_HEADER
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// PROPERTY_VALUES / \ PROPERTY_IDS
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//
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// PWC_DELETE_PROP: PROPERTY_SPECIFICATIONS => <empty>
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//
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// PWC_WRITE_NAME: PROPERTY_IDS \__ <empty>
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// PROPERTY_NAMES /
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//
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// PWC_DELETE_NAME: PROPERTY_IDS => <empty>
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//
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// PROPERTY_IDS \
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// PWC_WRITE_ALL: PROPERTY_NAMES => <empty>
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// PROPERTY_VALUES /
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typedef enum _WRITE_CONTROL_OPERATION {
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PWC_WRITE_PROP = 0,
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PWC_DELETE_PROP = 1,
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PWC_WRITE_NAME = 2,
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PWC_DELETE_NAME = 3,
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PWC_WRITE_ALL = 4,
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} WRITE_CONTROL_OPERATION;
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typedef struct _PROPERTY_WRITE_CONTROL {
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WRITE_CONTROL_OPERATION Op;
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PROPID NextPropertyId;
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} PROPERTY_WRITE_CONTROL, *PPROPERTY_WRITE_CONTROL;
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#ifdef __cplusplus
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}
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#endif
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#endif // _NTFSPROP_
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