freebsd-dev/sbin/fsck_msdosfs/ext.h
Pedro F. Giffuni 1de7b4b805 various: general 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.

No functional change intended.
2017-11-27 15:37:16 +00:00

144 lines
4.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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.
*
* 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 skipclean; /* skip clean file systems if preening */
/*
* function declarations
*/
int ask(int, const char *, ...) __printflike(2, 3);
/*
* Check the dirty flag. If the file system is clean, then return 1.
* Otherwise, return 0 (this includes the case of FAT12 file systems --
* they have no dirty flag, so they must be assumed to be unclean).
*/
int checkdirty(int, struct bootblock *);
/*
* 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 occurred */
#define FSDIRTY 32 /* File system is dirty */
#define FSFIXFAT 64 /* Fix file system FAT */
/*
* read a boot block in a machine independent fashion and translate
* it into our struct bootblock.
*/
int readboot(int, struct bootblock *);
/*
* Correct the FSInfo block.
*/
int writefsinfo(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 *, u_int, struct fatEntry **);
/*
* Check two FAT copies for consistency and merge changes into the
* first if necessary.
*/
int comparefat(struct bootblock *, struct fatEntry *, struct fatEntry *, u_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
*/
const char *rsrvdcltype(cl_t);
/*
* Clear a cluster chain in a FAT
*/
void clearchain(struct bootblock *, struct fatEntry *, cl_t);
#endif