cede1f563c
Enable lockf support. PR: 55861 Submitted by: Jun Su <junsu@m-net.arbornet.org> (original version) Reviewed by: make universe
150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/*
|
|
* Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank
|
|
* Copyright (c) 1995 Martin Husemann
|
|
*
|
|
* 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 Martin Husemann
|
|
* and Wolfgang Solfrank.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 THE AUTHORS 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.
|
|
* $NetBSD: ext.h,v 1.6 2000/04/25 23:02:51 jdolecek Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef EXT_H
|
|
#define EXT_H
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include "dosfs.h"
|
|
|
|
#define LOSTDIR "LOST.DIR"
|
|
|
|
/*
|
|
* Options:
|
|
*/
|
|
extern int alwaysno; /* assume "no" for all questions */
|
|
extern int alwaysyes; /* assume "yes" for all questions */
|
|
extern int preen; /* we are preening */
|
|
extern int rdonly; /* device is opened read only (supersedes above) */
|
|
extern int force;
|
|
|
|
extern struct dosDirEntry *rootDir;
|
|
|
|
/*
|
|
* function declarations
|
|
*/
|
|
int ask(int, const char *, ...) __attribute__((__format__(__printf__,2,3)));
|
|
|
|
/*
|
|
* Check file system given as arg
|
|
*/
|
|
int checkfilesys(const char *);
|
|
|
|
/*
|
|
* Return values of various functions
|
|
*/
|
|
#define FSOK 0 /* Check was OK */
|
|
#define FSBOOTMOD 1 /* Boot block was modified */
|
|
#define FSDIRMOD 2 /* Some directory was modified */
|
|
#define FSFATMOD 4 /* The FAT was modified */
|
|
#define FSERROR 8 /* Some unrecovered error remains */
|
|
#define FSFATAL 16 /* Some unrecoverable error occured */
|
|
#define FSDIRTY 32 /* File system is dirty */
|
|
#define FSFIXFAT 64 /* Fix file system FAT */
|
|
|
|
/*
|
|
* read a boot block in a machine independend fashion and translate
|
|
* it into our struct bootblock.
|
|
*/
|
|
int readboot(int, struct bootblock *);
|
|
|
|
/*
|
|
* Correct the FSInfo block.
|
|
*/
|
|
int writefsinfo(int, struct bootblock *);
|
|
|
|
/*
|
|
* Check the dirty flag. If clean return 1, otherwise return 0.
|
|
* If it is FAT12, return 0 always.
|
|
*/
|
|
int checkdirty(int, struct bootblock *);
|
|
|
|
/*
|
|
* Read one of the FAT copies and return a pointer to the new
|
|
* allocated array holding our description of it.
|
|
*/
|
|
int readfat(int, struct bootblock *, int, struct fatEntry **);
|
|
|
|
/*
|
|
* Check two FAT copies for consistency and merge changes into the
|
|
* first if neccessary.
|
|
*/
|
|
int comparefat(struct bootblock *, struct fatEntry *, struct fatEntry *, int);
|
|
|
|
/*
|
|
* Check a FAT
|
|
*/
|
|
int checkfat(struct bootblock *, struct fatEntry *);
|
|
|
|
/*
|
|
* Write back FAT entries
|
|
*/
|
|
int writefat(int, struct bootblock *, struct fatEntry *, int);
|
|
|
|
/*
|
|
* Read a directory
|
|
*/
|
|
int resetDosDirSection(struct bootblock *, struct fatEntry *);
|
|
void finishDosDirSection(void);
|
|
int handleDirTree(int, struct bootblock *, struct fatEntry *);
|
|
|
|
/*
|
|
* Cross-check routines run after everything is completely in memory
|
|
*/
|
|
/*
|
|
* Check for lost cluster chains
|
|
*/
|
|
int checklost(int, struct bootblock *, struct fatEntry *);
|
|
/*
|
|
* Try to reconnect a lost cluster chain
|
|
*/
|
|
int reconnect(int, struct bootblock *, struct fatEntry *, cl_t);
|
|
void finishlf(void);
|
|
|
|
/*
|
|
* Small helper functions
|
|
*/
|
|
/*
|
|
* Return the type of a reserved cluster as text
|
|
*/
|
|
char *rsrvdcltype(cl_t);
|
|
|
|
/*
|
|
* Clear a cluster chain in a FAT
|
|
*/
|
|
void clearchain(struct bootblock *, struct fatEntry *, cl_t);
|
|
|
|
#endif
|