freebsd-dev/sbin/fsdb/fsdb.h
Kirk McKusick d51bdf327d Have fsdb(8) only mark a filesystem dirty when it is modified.
Until this update, the fsdb(8) command always marked a filesystem
as needing a full fsck unless it was run with the -n flag which
allowed no changes to be made.

This change tracks modifications to the filesystem. Two types of
changes are tracked. The first type of changes are those that are
not critical to the integrity of the filesystem such as changes to
owner, group, time stamps, access mode, and generation number. The
second type of changes are those that do affect the integrity of
the filesystem including zeroing inodes, changing block pointers,
directory entries, link counts, file lengths, file types, and file
flags.

When quitting having made no changes or only changes to data that
is not critical to filesystem integrity, the clean state of the
filesystem is left unchanged. But if filesystem critical data are
changed then fsdb will set the unclean flag which will require a
full fsck to be run before the filesystem can be mounted.

MFC-after:    1 week
Sponsored-by: The FreeBSD Foundation
2023-07-25 19:29:05 -07:00

67 lines
2.6 KiB
C

/* $NetBSD: fsdb.h,v 1.2 1995/10/08 23:18:11 thorpej Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1995 John T. Kohl
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `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 AUTHOR 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.
*
* $FreeBSD$
*/
extern int blread(int fd, char *buf, ufs2_daddr_t blk, long size);
extern void rwerror(const char *mesg, ufs2_daddr_t blk);
extern int reply(const char *question);
extern long dev_bsize;
extern long secsize;
extern int fsmodified;
extern int fsfd;
struct cmdtable {
const char *cmd;
const char *helptxt;
unsigned int minargc;
unsigned int maxargc;
unsigned int flags;
#define FL_RO 0x0000 /* for symmetry */
#define FL_WR 0x0001 /* wants to write */
#define FL_CWR 0x0002 /* wants to write critical data */
#define FL_ST 0x0003 /* resplit final string if argc > maxargc */
int (*handler)(int argc, char *argv[]);
};
extern struct inode curip;
extern union dinode *curinode;
extern ino_t curinum;
int argcount(struct cmdtable *cmdp, int argc, char *argv[]);
char **crack(char *line, int *argc);
char **recrack(char *line, int *argc, int argc_max);
void printstat(const char *cp, ino_t inum, union dinode *dp);
int printactive(int doblocks);
int checkactive(void);
int checkactivedir(void);