2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1980, 1986, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 static const char copyright[] =
35 "@(#) Copyright (c) 1980, 1986, 1993\n\
36 The Regents of the University of California. All rights reserved.\n";
40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
47 #include <ufs/ufs/dinode.h>
48 #include <ufs/ffs/fs.h>
52 long readcnt[BT_NUMBUFTYPES];
53 long totalreadcnt[BT_NUMBUFTYPES];
54 struct timespec readtime[BT_NUMBUFTYPES];
55 struct timespec totalreadtime[BT_NUMBUFTYPES];
56 struct timespec startprog;
57 struct bufarea sblk; /* file system superblock */
58 struct bufarea *pdirbp; /* current directory contents */
60 long dirhash, inplast;
61 unsigned long numdirs, listmax;
62 long countdirs; /* number of directories we actually found */
63 int adjrefcnt[MIBSIZE]; /* MIB command to adjust inode reference cnt */
64 int adjblkcnt[MIBSIZE]; /* MIB command to adjust inode block count */
65 int setsize[MIBSIZE]; /* MIB command to set inode size */
66 int adjndir[MIBSIZE]; /* MIB command to adjust number of directories */
67 int adjnbfree[MIBSIZE]; /* MIB command to adjust number of free blocks */
68 int adjnifree[MIBSIZE]; /* MIB command to adjust number of free inodes */
69 int adjnffree[MIBSIZE]; /* MIB command to adjust number of free frags */
70 int adjnumclusters[MIBSIZE]; /* MIB command to adjust number of free clusters */
71 int freefiles[MIBSIZE]; /* MIB command to free a set of files */
72 int freedirs[MIBSIZE]; /* MIB command to free a set of directories */
73 int freeblks[MIBSIZE]; /* MIB command to free a set of data blocks */
74 struct fsck_cmd cmd; /* sysctl file system update commands */
75 char snapname[BUFSIZ]; /* when doing snapshots, the name of the file */
76 char *cdevname; /* name of device being checked */
77 long dev_bsize; /* computed value of DEV_BSIZE */
78 long secsize; /* actual disk sector size */
79 u_int real_dev_bsize; /* actual disk sector size, not overridden */
80 char nflag; /* assume a no response */
81 char yflag; /* assume a yes response */
82 int bkgrdflag; /* use a snapshot to run on an active system */
83 off_t bflag; /* location of alternate super block */
84 int debug; /* output debugging info */
85 int Eflag; /* delete empty data blocks */
86 int Zflag; /* zero empty data blocks */
87 int zflag; /* zero unused directory space */
88 int inoopt; /* trim out unused inodes */
89 char ckclean; /* only do work if not cleanly unmounted */
90 int cvtlevel; /* convert to newer file system format */
91 int ckhashadd; /* check hashes to be added */
92 int bkgrdcheck; /* determine if background check is possible */
93 int bkgrdsumadj; /* whether the kernel have ability to adjust superblock summary */
94 char usedsoftdep; /* just fix soft dependency inconsistencies */
95 char preen; /* just fix normal inconsistencies */
96 char rerun; /* rerun fsck. Only used in non-preen mode */
97 int returntosingle; /* 1 => return to single user mode on exit */
98 char resolved; /* cleared if unresolved changes => not clean */
99 char havesb; /* superblock has been read */
100 char skipclean; /* skip clean file systems if preening */
101 int fsmodified; /* 1 => write done to file system */
102 int fsreadfd; /* file descriptor for reading file system */
103 int fswritefd; /* file descriptor for writing file system */
104 int surrender; /* Give up if reads fail */
105 int wantrestart; /* Restart fsck on early termination */
106 ufs2_daddr_t maxfsblock; /* number of blocks in the file system */
107 char *blockmap; /* ptr to primary blk allocation map */
108 ino_t maxino; /* number of inodes in file system */
109 ino_t lfdir; /* lost & found directory inode number */
110 const char *lfname; /* lost & found directory name */
111 int lfmode; /* lost & found directory creation mode */
112 ufs2_daddr_t n_blks; /* number of blocks in use */
113 ino_t n_files; /* number of files in use */
114 volatile sig_atomic_t got_siginfo; /* received a SIGINFO */
115 volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */
118 struct dups *duplist;
120 struct inostatlist *inostathead;
125 bzero(readcnt, sizeof(long) * BT_NUMBUFTYPES);
126 bzero(totalreadcnt, sizeof(long) * BT_NUMBUFTYPES);
127 bzero(readtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
128 bzero(totalreadtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
129 bzero(&startprog, sizeof(struct timespec));
130 bzero(&sblk, sizeof(struct bufarea));
132 listmax = numdirs = dirhash = inplast = 0;
134 bzero(adjrefcnt, sizeof(int) * MIBSIZE);
135 bzero(adjblkcnt, sizeof(int) * MIBSIZE);
136 bzero(setsize, sizeof(int) * MIBSIZE);
137 bzero(adjndir, sizeof(int) * MIBSIZE);
138 bzero(adjnbfree, sizeof(int) * MIBSIZE);
139 bzero(adjnifree, sizeof(int) * MIBSIZE);
140 bzero(adjnffree, sizeof(int) * MIBSIZE);
141 bzero(adjnumclusters, sizeof(int) * MIBSIZE);
142 bzero(freefiles, sizeof(int) * MIBSIZE);
143 bzero(freedirs, sizeof(int) * MIBSIZE);
144 bzero(freeblks, sizeof(int) * MIBSIZE);
145 bzero(&cmd, sizeof(struct fsck_cmd));
146 bzero(snapname, sizeof(char) * BUFSIZ);
163 lfname = "lost+found";
169 bzero(&zino.dp1, sizeof(struct ufs1_dinode));
170 bzero(&zino.dp2, sizeof(struct ufs2_dinode));