58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
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/******************************************************************************
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*
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* Copyright (c) 1999 Microsoft Corporation
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*
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* Module Name:
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* ifsr3.h
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*
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* Abstract:
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* This file contains definitions from ring 0 required in ring 3
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*
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* Revision History:
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* Kanwaljit S Marok ( kmarok ) 05/17/99
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* created
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*
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*****************************************************************************/
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#ifndef _IFSR3_H_
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#define _IFSR3_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CALC_PPATH_SIZE( a ) ( ( a + 3 ) * sizeof( WCHAR ) )
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#define MAX_PPATH_SIZE CALC_PPATH_SIZE(MAX_PATH)
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typedef struct PathElement PathElement;
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typedef struct ParsedPath ParsedPath;
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typedef ParsedPath *path_t;
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struct PathElement {
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unsigned short pe_length;
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unsigned short pe_unichars[1];
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}; /* PathElement */
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struct ParsedPath {
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unsigned short pp_totalLength;
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unsigned short pp_prefixLength;
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struct PathElement pp_elements[1];
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}; /* ParsedPath */
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#define IFSPathSize(ppath) ((ppath)->pp_totalLength + sizeof(short))
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#define IFSPathLength(ppath) ((ppath)->pp_totalLength - sizeof(short)*2)
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#define IFSLastElement(ppath) ((PathElement *)((char *)(ppath) + (ppath)->pp_prefixLength))
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#define IFSNextElement(pel) ((PathElement *)((char *)(pel) + (pel)->pe_length))
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#define IFSIsRoot(ppath) ((ppath)->pp_totalLength == 4)
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// New defines
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#define IFSPathElemChars(pel) ( (((PathElement*)pel)->pe_length/sizeof(USHORT)) - 1 )
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#ifdef __cplusplus
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}
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#endif
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#endif // _IFSR3_H_
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