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freebsd-dev/sbin/ffsinfo/ffsinfo.c
Kirk McKusick e688661642 Move the ability to search for alternate UFS superblocks from fsck_ffs(8) 
into ffs_sbsearch() to allow use by other parts of the system.

Historically only fsck_ffs(8), the UFS filesystem checker, had code
to track down and use alternate UFS superblocks. Since fsdb(8) used
much of the fsck_ffs(8) implementation it had some ability to track
down alternate superblocks.

This change extracts the code to track down alternate superblocks
from fsck_ffs(8) and puts it into a new function ffs_sbsearch() in
sys/ufs/ffs/ffs_subr.c. Like ffs_sbget() and ffs_sbput() also found
in ffs_subr.c, these functions can be used directly by the kernel
subsystems. Additionally they are exported to the UFS library,
libufs(8) so that they can be used by user-level programs. The new
functions added to libufs(8) are sbfind(3) that is an alternative
to sbread(3) and sbsearch(3) that is an alternative to sbget(3).
See their manual pages for further details.

The utilities that have been changed to search for superblocks are
dumpfs(8), fsdb(8), ffsinfo(8), and fsck_ffs(8). Also, the prtblknos(8)
tool found in tools/diag/prtblknos searches for superblocks.

The UFS specific mount code uses the superblock search interface
when mounting the root filesystem and when the administrator doing
a mount(8) command specifies the force flag (-f). The standalone UFS
boot code (found in stand/libsa/ufs.c) uses the superblock search
code in the hope of being able to get the system up and running so
that fsck_ffs(8) can be used to get the filesystem cleaned up.

The following utilities have not been changed to search for
superblocks: clri(8), tunefs(8), snapinfo(8), fstyp(8), quot(8),
dump(8), fsirand(8), growfs(8), quotacheck(8), gjournal(8), and
glabel(8). When these utilities fail, they do report the cause of
the failure. The one exception is the tasting code used to try and
figure what a given disk contains. The tasting code will remain
silent so as not to put out a slew of messages as it trying to taste
every new mass storage device that shows up.

Reviewed by: kib
Reviewed by: Warner Losh
Tested by:   Peter Holm
Differential Revision: https://reviews.freebsd.org/D36053
Sponsored by: The FreeBSD Foundation
2022-08-13 12:43:40 -07:00

653 lines
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/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
* Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Christoph Herrmann and Thomas-Henning von Kamptz, Munich and Frankfurt.
*
* 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 acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors, as well as Christoph
* Herrmann and Thomas-Henning von Kamptz.
* 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 REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* $TSHeader: src/sbin/ffsinfo/ffsinfo.c,v 1.4 2000/12/12 19:30:55 tomsoft Exp $
*
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz\n\
Copyright (c) 1980, 1989, 1993 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/* ********************************************************** INCLUDES ***** */
#include <sys/param.h>
#include <sys/disklabel.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <ufs/ufs/extattr.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libufs.h>
#include <paths.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "debug.h"
/* *********************************************************** GLOBALS ***** */
#ifdef FS_DEBUG
int _dbg_lvl_ = (DL_INFO); /* DL_TRC */
#endif /* FS_DEBUG */
static struct uufsd disk;
#define sblock disk.d_fs
#define acg disk.d_cg
static union {
struct fs fs;
char pad[SBLOCKSIZE];
} fsun;
#define osblock fsun.fs
static char i1blk[MAXBSIZE];
static char i2blk[MAXBSIZE];
static char i3blk[MAXBSIZE];
static struct csum *fscs;
/* ******************************************************** PROTOTYPES ***** */
static void usage(void);
static void dump_whole_ufs1_inode(ino_t, int);
static void dump_whole_ufs2_inode(ino_t, int);
#define DUMP_WHOLE_INODE(A,B) \
( disk.d_ufs == 1 \
? dump_whole_ufs1_inode((A),(B)) : dump_whole_ufs2_inode((A),(B)) )
/* ************************************************************** main ***** */
/*
* ffsinfo(8) is a tool to dump all metadata of a file system. It helps to find
* errors is the file system much easier. You can run ffsinfo before and after
* an fsck(8), and compare the two ascii dumps easy with diff, and you see
* directly where the problem is. You can control how much detail you want to
* see with some command line arguments. You can also easy check the status
* of a file system, like is there is enough space for growing a file system,
* or how many active snapshots do we have. It provides much more detailed
* information then dumpfs. Snapshots, as they are very new, are not really
* supported. They are just mentioned currently, but it is planned to run
* also over active snapshots, to even get that output.
*/
int
main(int argc, char **argv)
{
DBG_FUNC("main")
char *device, *special;
int ch;
size_t len;
struct stat st;
struct csum *dbg_csp;
int dbg_csc;
char dbg_line[80];
int cylno,i;
int cfg_cg, cfg_in, cfg_lv;
int cg_start, cg_stop;
ino_t in;
char *out_file;
DBG_ENTER;
cfg_lv = 0xff;
cfg_in = -2;
cfg_cg = -2;
out_file = strdup("-");
while ((ch = getopt(argc, argv, "g:i:l:o:")) != -1) {
switch (ch) {
case 'g':
cfg_cg = strtol(optarg, NULL, 0);
if (errno == EINVAL || errno == ERANGE)
err(1, "%s", optarg);
if (cfg_cg < -1)
usage();
break;
case 'i':
cfg_in = strtol(optarg, NULL, 0);
if (errno == EINVAL || errno == ERANGE)
err(1, "%s", optarg);
if (cfg_in < 0)
usage();
break;
case 'l':
cfg_lv = strtol(optarg, NULL, 0);
if (errno == EINVAL||errno == ERANGE)
err(1, "%s", optarg);
if (cfg_lv < 0x1 || cfg_lv > 0x3ff)
usage();
break;
case 'o':
free(out_file);
out_file = strdup(optarg);
if (out_file == NULL)
errx(1, "strdup failed");
break;
case '?':
/* FALLTHROUGH */
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
device = *argv;
/*
* Now we try to guess the (raw)device name.
*/
if (0 == strrchr(device, '/') && stat(device, &st) == -1) {
/*-
* No path prefix was given, so try in this order:
* /dev/r%s
* /dev/%s
* /dev/vinum/r%s
* /dev/vinum/%s.
*
* FreeBSD now doesn't distinguish between raw and block
* devices any longer, but it should still work this way.
*/
len = strlen(device) + strlen(_PATH_DEV) + 2 + strlen("vinum/");
special = (char *)malloc(len);
if (special == NULL)
errx(1, "malloc failed");
snprintf(special, len, "%sr%s", _PATH_DEV, device);
if (stat(special, &st) == -1) {
snprintf(special, len, "%s%s", _PATH_DEV, device);
if (stat(special, &st) == -1) {
snprintf(special, len, "%svinum/r%s",
_PATH_DEV, device);
if (stat(special, &st) == -1)
/* For now this is the 'last resort' */
snprintf(special, len, "%svinum/%s",
_PATH_DEV, device);
}
}
device = special;
}
if (ufs_disk_fillout_blank(&disk, device) == -1 ||
sbfind(&disk, 0) == -1)
err(1, "superblock fetch(%s) failed: %s", device, disk.d_error);
DBG_OPEN(out_file); /* already here we need a superblock */
if (cfg_lv & 0x001)
DBG_DUMP_FS(&sblock, "primary sblock");
/* Determine here what cylinder groups to dump */
if (cfg_cg==-2) {
cg_start = 0;
cg_stop = sblock.fs_ncg;
} else if (cfg_cg == -1) {
cg_start = sblock.fs_ncg - 1;
cg_stop = sblock.fs_ncg;
} else if (cfg_cg < sblock.fs_ncg) {
cg_start = cfg_cg;
cg_stop = cfg_cg + 1;
} else {
cg_start = sblock.fs_ncg;
cg_stop = sblock.fs_ncg;
}
if (cfg_lv & 0x004) {
fscs = (struct csum *)calloc((size_t)1,
(size_t)sblock.fs_cssize);
if (fscs == NULL)
errx(1, "calloc failed");
/* get the cylinder summary into the memory ... */
for (i = 0; i < sblock.fs_cssize; i += sblock.fs_bsize) {
if (bread(&disk, fsbtodb(&sblock,
sblock.fs_csaddr + numfrags(&sblock, i)),
(void *)(((char *)fscs)+i),
(size_t)(sblock.fs_cssize-i < sblock.fs_bsize ?
sblock.fs_cssize - i : sblock.fs_bsize)) == -1)
err(1, "bread: %s", disk.d_error);
}
dbg_csp = fscs;
/* ... and dump it */
for (dbg_csc = 0; dbg_csc < sblock.fs_ncg; dbg_csc++) {
snprintf(dbg_line, sizeof(dbg_line),
"%d. csum in fscs", dbg_csc);
DBG_DUMP_CSUM(&sblock,
dbg_line,
dbg_csp++);
}
}
if (cfg_lv & 0xf8) {
/* for each requested cylinder group ... */
for (cylno = cg_start; cylno < cg_stop; cylno++) {
snprintf(dbg_line, sizeof(dbg_line), "cgr %d", cylno);
if (cfg_lv & 0x002) {
/* dump the superblock copies */
if (bread(&disk, fsbtodb(&sblock,
cgsblock(&sblock, cylno)),
(void *)&osblock, SBLOCKSIZE) == -1)
err(1, "bread: %s", disk.d_error);
DBG_DUMP_FS(&osblock, dbg_line);
}
/*
* Read the cylinder group and dump whatever was
* requested.
*/
if (bread(&disk, fsbtodb(&sblock,
cgtod(&sblock, cylno)), (void *)&acg,
(size_t)sblock.fs_cgsize) == -1)
err(1, "bread: %s", disk.d_error);
if (cfg_lv & 0x008)
DBG_DUMP_CG(&sblock, dbg_line, &acg);
if (cfg_lv & 0x010)
DBG_DUMP_INMAP(&sblock, dbg_line, &acg);
if (cfg_lv & 0x020)
DBG_DUMP_FRMAP(&sblock, dbg_line, &acg);
if (cfg_lv & 0x040) {
DBG_DUMP_CLMAP(&sblock, dbg_line, &acg);
DBG_DUMP_CLSUM(&sblock, dbg_line, &acg);
}
#ifdef NOT_CURRENTLY
/*
* See the comment in sbin/growfs/debug.c for why this
* is currently disabled, and what needs to be done to
* re-enable it.
*/
if (disk.d_ufs == 1 && cfg_lv & 0x080)
DBG_DUMP_SPTBL(&sblock, dbg_line, &acg);
#endif
}
}
if (cfg_lv & 0x300) {
/* Dump the requested inode(s) */
if (cfg_in != -2)
DUMP_WHOLE_INODE((ino_t)cfg_in, cfg_lv);
else {
for (in = cg_start * sblock.fs_ipg;
in < (ino_t)cg_stop * sblock.fs_ipg;
in++)
DUMP_WHOLE_INODE(in, cfg_lv);
}
}
DBG_CLOSE;
DBG_LEAVE;
return 0;
}
/* ********************************************** dump_whole_ufs1_inode ***** */
/*
* Here we dump a list of all blocks allocated by this inode. We follow
* all indirect blocks.
*/
void
dump_whole_ufs1_inode(ino_t inode, int level)
{
DBG_FUNC("dump_whole_ufs1_inode")
union dinodep dp;
int rb;
unsigned int ind2ctr, ind3ctr;
ufs1_daddr_t *ind2ptr, *ind3ptr;
char comment[80];
DBG_ENTER;
/*
* Read the inode from disk/cache.
*/
if (getinode(&disk, &dp, inode) == -1)
err(1, "getinode: %s", disk.d_error);
if (dp.dp1->di_nlink == 0) {
DBG_LEAVE;
return; /* inode not in use */
}
/*
* Dump the main inode structure.
*/
snprintf(comment, sizeof(comment), "Inode 0x%08jx", (uintmax_t)inode);
if (level & 0x100) {
DBG_DUMP_INO(&sblock,
comment,
dp.dp1);
}
if (!(level & 0x200)) {
DBG_LEAVE;
return;
}
/*
* Ok, now prepare for dumping all direct and indirect pointers.
*/
rb = howmany(dp.dp1->di_size, sblock.fs_bsize) - UFS_NDADDR;
if (rb > 0) {
/*
* Dump single indirect block.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp1->di_ib[0]),
(void *)&i1blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 0",
(uintmax_t)inode);
DBG_DUMP_IBLK(&sblock,
comment,
i1blk,
(size_t)rb);
rb -= howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t));
}
if (rb > 0) {
/*
* Dump double indirect blocks.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp1->di_ib[1]),
(void *)&i2blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 1",
(uintmax_t)inode);
DBG_DUMP_IBLK(&sblock,
comment,
i2blk,
howmany(rb, howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t))));
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
sizeof(ufs1_daddr_t))) && (rb > 0)); ind2ctr++) {
ind2ptr = &((ufs1_daddr_t *)(void *)&i2blk)[ind2ctr];
if (bread(&disk, fsbtodb(&sblock, *ind2ptr),
(void *)&i1blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 1->%d", (uintmax_t)inode,
ind2ctr);
DBG_DUMP_IBLK(&sblock,
comment,
i1blk,
(size_t)rb);
rb -= howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t));
}
}
if (rb > 0) {
/*
* Dump triple indirect blocks.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp1->di_ib[2]),
(void *)&i3blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 2",
(uintmax_t)inode);
#define SQUARE(a) ((a)*(a))
DBG_DUMP_IBLK(&sblock,
comment,
i3blk,
howmany(rb,
SQUARE(howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t)))));
#undef SQUARE
for (ind3ctr = 0; ((ind3ctr < howmany(sblock.fs_bsize,
sizeof(ufs1_daddr_t))) && (rb > 0)); ind3ctr++) {
ind3ptr = &((ufs1_daddr_t *)(void *)&i3blk)[ind3ctr];
if (bread(&disk, fsbtodb(&sblock, *ind3ptr),
(void *)&i2blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 2->%d", (uintmax_t)inode,
ind3ctr);
DBG_DUMP_IBLK(&sblock,
comment,
i2blk,
howmany(rb,
howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t))));
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
sizeof(ufs1_daddr_t))) && (rb > 0)); ind2ctr++) {
ind2ptr=&((ufs1_daddr_t *)(void *)&i2blk)
[ind2ctr];
if (bread(&disk, fsbtodb(&sblock, *ind2ptr),
(void *)&i1blk, (size_t)sblock.fs_bsize)
== -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 2->%d->%d",
(uintmax_t)inode, ind3ctr, ind3ctr);
DBG_DUMP_IBLK(&sblock,
comment,
i1blk,
(size_t)rb);
rb -= howmany(sblock.fs_bsize,
sizeof(ufs1_daddr_t));
}
}
}
DBG_LEAVE;
return;
}
/* ********************************************** dump_whole_ufs2_inode ***** */
/*
* Here we dump a list of all blocks allocated by this inode. We follow
* all indirect blocks.
*/
void
dump_whole_ufs2_inode(ino_t inode, int level)
{
DBG_FUNC("dump_whole_ufs2_inode")
union dinodep dp;
int rb;
unsigned int ind2ctr, ind3ctr;
ufs2_daddr_t *ind2ptr, *ind3ptr;
char comment[80];
DBG_ENTER;
/*
* Read the inode from disk/cache.
*/
if (getinode(&disk, &dp, inode) == -1)
err(1, "getinode: %s", disk.d_error);
if (dp.dp2->di_nlink == 0) {
DBG_LEAVE;
return; /* inode not in use */
}
/*
* Dump the main inode structure.
*/
snprintf(comment, sizeof(comment), "Inode 0x%08jx", (uintmax_t)inode);
if (level & 0x100) {
DBG_DUMP_INO(&sblock, comment, dp.dp2);
}
if (!(level & 0x200)) {
DBG_LEAVE;
return;
}
/*
* Ok, now prepare for dumping all direct and indirect pointers.
*/
rb = howmany(dp.dp2->di_size, sblock.fs_bsize) - UFS_NDADDR;
if (rb > 0) {
/*
* Dump single indirect block.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp2->di_ib[0]),
(void *)&i1blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 0",
(uintmax_t)inode);
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
}
if (rb > 0) {
/*
* Dump double indirect blocks.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp2->di_ib[1]),
(void *)&i2blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 1",
(uintmax_t)inode);
DBG_DUMP_IBLK(&sblock,
comment,
i2blk,
howmany(rb, howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t))));
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
sizeof(ufs2_daddr_t))) && (rb>0)); ind2ctr++) {
ind2ptr = &((ufs2_daddr_t *)(void *)&i2blk)[ind2ctr];
if (bread(&disk, fsbtodb(&sblock, *ind2ptr),
(void *)&i1blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 1->%d",
(uintmax_t)inode, ind2ctr);
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
}
}
if (rb > 0) {
/*
* Dump triple indirect blocks.
*/
if (bread(&disk, fsbtodb(&sblock, dp.dp2->di_ib[2]),
(void *)&i3blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 2",
(uintmax_t)inode);
#define SQUARE(a) ((a)*(a))
DBG_DUMP_IBLK(&sblock,
comment,
i3blk,
howmany(rb,
SQUARE(howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t)))));
#undef SQUARE
for (ind3ctr = 0; ((ind3ctr < howmany(sblock.fs_bsize,
sizeof(ufs2_daddr_t))) && (rb > 0)); ind3ctr++) {
ind3ptr = &((ufs2_daddr_t *)(void *)&i3blk)[ind3ctr];
if (bread(&disk, fsbtodb(&sblock, *ind3ptr),
(void *)&i2blk, (size_t)sblock.fs_bsize) == -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 2->%d",
(uintmax_t)inode, ind3ctr);
DBG_DUMP_IBLK(&sblock,
comment,
i2blk,
howmany(rb,
howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t))));
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
sizeof(ufs2_daddr_t))) && (rb > 0)); ind2ctr++) {
ind2ptr = &((ufs2_daddr_t *)(void *)&i2blk) [ind2ctr];
if (bread(&disk, fsbtodb(&sblock, *ind2ptr),
(void *)&i1blk, (size_t)sblock.fs_bsize)
== -1) {
err(1, "bread: %s", disk.d_error);
}
snprintf(comment, sizeof(comment),
"Inode 0x%08jx: indirect 2->%d->%d",
(uintmax_t)inode, ind3ctr, ind3ctr);
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
}
}
}
DBG_LEAVE;
return;
}
/* ************************************************************* usage ***** */
/*
* Dump a line of usage.
*/
void
usage(void)
{
DBG_FUNC("usage")
DBG_ENTER;
fprintf(stderr,
"usage: ffsinfo [-g cylinder_group] [-i inode] [-l level] "
"[-o outfile]\n"
" special | file\n");
DBG_LEAVE;
exit(1);
}
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