freebsd-dev/sys/fs/msdosfs/direntry.h
Pedro F. Giffuni d63027b668 sys/fs: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:15:37 +00:00

166 lines
6.0 KiB
C

/* $FreeBSD$ */
/* $NetBSD: direntry.h,v 1.14 1997/11/17 15:36:32 ws Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
* Copyright (C) 1994, 1995, 1997 TooLs GmbH.
* All rights reserved.
* Original code by Paul Popelka (paulp@uts.amdahl.com) (see below).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Written by Paul Popelka (paulp@uts.amdahl.com)
*
* You can do anything you want with this software, just don't say you wrote
* it, and don't remove this notice.
*
* This software is provided "as is".
*
* The author supplies this software to be publicly redistributed on the
* understanding that the author is not responsible for the correct
* functioning of this software in any circumstances and is not liable for
* any damages caused by this software.
*
* October 1992
*/
#ifndef _FS_MSDOSFS_DIRENTRY_H_
#define _FS_MSDOSFS_DIRENTRY_H_
/*
* Structure of a dos directory entry.
*/
struct direntry {
uint8_t deName[11]; /* filename, blank filled */
#define SLOT_EMPTY 0x00 /* slot has never been used */
#define SLOT_E5 0x05 /* the real value is 0xe5 */
#define SLOT_DELETED 0xe5 /* file in this slot deleted */
uint8_t deAttributes; /* file attributes */
#define ATTR_NORMAL 0x00 /* normal file */
#define ATTR_READONLY 0x01 /* file is readonly */
#define ATTR_HIDDEN 0x02 /* file is hidden */
#define ATTR_SYSTEM 0x04 /* file is a system file */
#define ATTR_VOLUME 0x08 /* entry is a volume label */
#define ATTR_DIRECTORY 0x10 /* entry is a directory name */
#define ATTR_ARCHIVE 0x20 /* file is new or modified */
uint8_t deLowerCase; /* NT VFAT lower case flags */
#define LCASE_BASE 0x08 /* filename base in lower case */
#define LCASE_EXT 0x10 /* filename extension in lower case */
uint8_t deCHundredth; /* hundredth of seconds in CTime */
uint8_t deCTime[2]; /* create time */
uint8_t deCDate[2]; /* create date */
uint8_t deADate[2]; /* access date */
uint8_t deHighClust[2]; /* high bytes of cluster number */
uint8_t deMTime[2]; /* last update time */
uint8_t deMDate[2]; /* last update date */
uint8_t deStartCluster[2]; /* starting cluster of file */
uint8_t deFileSize[4]; /* size of file in bytes */
};
/*
* Structure of a Win95 long name directory entry
*/
struct winentry {
uint8_t weCnt;
#define WIN_LAST 0x40
#define WIN_CNT 0x3f
uint8_t wePart1[10];
uint8_t weAttributes;
#define ATTR_WIN95 0x0f
uint8_t weReserved1;
uint8_t weChksum;
uint8_t wePart2[12];
uint16_t weReserved2;
uint8_t wePart3[4];
};
#define WIN_CHARS 13 /* Number of chars per winentry */
/*
* Maximum number of winentries for a filename.
*/
#define WIN_MAXSUBENTRIES 20
/*
* Maximum filename length in Win95
* Note: Must be < sizeof(dirent.d_name)
*/
#define WIN_MAXLEN 255
/*
* This is the format of the contents of the deTime field in the direntry
* structure.
* We don't use bitfields because we don't know how compilers for
* arbitrary machines will lay them out.
*/
#define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */
#define DT_2SECONDS_SHIFT 0
#define DT_MINUTES_MASK 0x7E0 /* minutes */
#define DT_MINUTES_SHIFT 5
#define DT_HOURS_MASK 0xF800 /* hours */
#define DT_HOURS_SHIFT 11
/*
* This is the format of the contents of the deDate field in the direntry
* structure.
*/
#define DD_DAY_MASK 0x1F /* day of month */
#define DD_DAY_SHIFT 0
#define DD_MONTH_MASK 0x1E0 /* month */
#define DD_MONTH_SHIFT 5
#define DD_YEAR_MASK 0xFE00 /* year - 1980 */
#define DD_YEAR_SHIFT 9
#if defined(_KERNEL) || defined(MAKEFS)
struct mbnambuf {
size_t nb_len;
int nb_last_id;
char nb_buf[WIN_MAXLEN + 1];
};
struct dirent;
struct msdosfsmount;
char *mbnambuf_flush(struct mbnambuf *nbp, struct dirent *dp);
void mbnambuf_init(struct mbnambuf *nbp);
int mbnambuf_write(struct mbnambuf *nbp, char *name, int id);
int dos2unixfn(u_char dn[11], u_char *un, int lower,
struct msdosfsmount *pmp);
int unix2dosfn(const u_char *un, u_char dn[12], size_t unlen, u_int gen,
struct msdosfsmount *pmp);
int unix2winfn(const u_char *un, size_t unlen, struct winentry *wep, int cnt,
int chksum, struct msdosfsmount *pmp);
int winChkName(struct mbnambuf *nbp, const u_char *un, size_t unlen,
int chksum, struct msdosfsmount *pmp);
int win2unixfn(struct mbnambuf *nbp, struct winentry *wep, int chksum,
struct msdosfsmount *pmp);
uint8_t winChksum(uint8_t *name);
int winSlotCnt(const u_char *un, size_t unlen, struct msdosfsmount *pmp);
size_t winLenFixup(const u_char *un, size_t unlen);
#endif /* _KERNEL || MAKEFS */
#endif /* !_FS_MSDOSFS_DIRENTRY_H_ */