Source code of Windows XP (NT5)
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75 lines
2.5 KiB

;** Break <Directory entry>
; NOTE: These offsets are also used in the DTA for
; extended FCB SearchFirst/Next. DIR_NAME lines up
; with the FCB filename field, and the rest of the
; DIR_ENTRY fields follow. -DavidOls
;** DIRENT.INC - FAT Directory Entry Definition
;
; +---------------------------+
; | (12 BYTE) filename/ext | 0 0
; +---------------------------+
; | (BYTE) attributes | 11 B
; +---------------------------+
; | (10 BYTE) reserved | 12 C
; +---------------------------+
; | (WORD) time of last write | 22 16
; +---------------------------+
; | (WORD) date of last write | 24 18
; +---------------------------+
; | (WORD) First cluster | 26 1A
; +---------------------------+
; | (DWORD) file size | 28 1C
; +---------------------------+
;
; First byte of filename = E5 -> free directory entry
; = 00 -> end of allocated directory
; Time: Bits 0-4=seconds/2, bits 5-10=minute, 11-15=hour
; Date: Bits 0-4=day, bits 5-8=month, bits 9-15=year-1980
;
DIR_ENTRY STRUC
DIR_NAME db 11 DUP (?) ; file name
DIR_ATTR db ? ; attribute bits
DIR_CODEPG dw ? ; code page DOS 4.00
DIR_EXTCLUSTER dw ? ; extended attribute starting cluster
DIR_ATTR2 db ? ; reserved
DIR_PAD db 5 DUP (?) ; reserved for expansion
DIR_TIME dw ? ; time of last write
DIR_DATE dw ? ; date of last write
DIR_FIRST dw ? ; first allocation unit of file
DIR_SIZE_L dw ? ; low 16 bits of file size
DIR_SIZE_H dw ? ; high 16 bits of file size
; Caution: An extended FCB SearchFirst/Next on a network
; drive under Novell Netware 286 or 386 returns the time/date
; in the SIZE fields for subdirectory files. Ordinarily,
; this field is zero for subdirectory files.
DIR_ENTRY ENDS
ATTR_READ_ONLY equ 1h
ATTR_HIDDEN equ 2h
ATTR_SYSTEM equ 4h
ATTR_VOLUME_ID equ 8h
ATTR_DIRECTORY equ 10h
ATTR_ARCHIVE equ 20h
ATTR_DEVICE equ 40h ; This is a VERY special bit.
; NO directory entry on a disk EVER
; has this bit set. It is set non-zero
; when a device is found by GETPATH
ATTR_ALL equ attr_hidden+attr_system+attr_directory
; OR of hard attributes for FINDENTRY
ATTR_IGNORE equ attr_read_only+attr_archive+attr_device
; ignore this(ese) attribute(s) during
; search first/next
ATTR_CHANGEABLE equ attr_read_only+attr_hidden+attr_system+attr_archive
; changeable via CHMOD
DIRFREE equ 0E5h ; stored in dir_name[0] to indicate free slot