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 */
59 struct bufarea *pbp; /* current inode block */
61 long dirhash, inplast;
62 unsigned long numdirs, listmax;
63 long countdirs; /* number of directories we actually found */
64 int adjrefcnt[MIBSIZE]; /* MIB command to adjust inode reference cnt */
65 int adjblkcnt[MIBSIZE]; /* MIB command to adjust inode block count */
66 int setsize[MIBSIZE]; /* MIB command to set inode size */
67 int adjndir[MIBSIZE]; /* MIB command to adjust number of directories */
68 int adjnbfree[MIBSIZE]; /* MIB command to adjust number of free blocks */
69 int adjnifree[MIBSIZE]; /* MIB command to adjust number of free inodes */
70 int adjnffree[MIBSIZE]; /* MIB command to adjust number of free frags */
71 int adjnumclusters[MIBSIZE]; /* MIB command to adjust number of free clusters */
72 int freefiles[MIBSIZE]; /* MIB command to free a set of files */
73 int freedirs[MIBSIZE]; /* MIB command to free a set of directories */
74 int freeblks[MIBSIZE]; /* MIB command to free a set of data blocks */
75 struct fsck_cmd cmd; /* sysctl file system update commands */
76 char snapname[BUFSIZ]; /* when doing snapshots, the name of the file */
77 char *cdevname; /* name of device being checked */
78 long dev_bsize; /* computed value of DEV_BSIZE */
79 long secsize; /* actual disk sector size */
80 u_int real_dev_bsize; /* actual disk sector size, not overridden */
81 char nflag; /* assume a no response */
82 char yflag; /* assume a yes response */
83 int bkgrdflag; /* use a snapshot to run on an active system */
84 off_t bflag; /* location of alternate super block */
85 int debug; /* output debugging info */
86 int Eflag; /* delete empty data blocks */
87 int Zflag; /* zero empty data blocks */
88 int zflag; /* zero unused directory space */
89 int inoopt; /* trim out unused inodes */
90 char ckclean; /* only do work if not cleanly unmounted */
91 int cvtlevel; /* convert to newer file system format */
92 int ckhashadd; /* check hashes to be added */
93 int bkgrdcheck; /* determine if background check is possible */
94 int bkgrdsumadj; /* whether the kernel have ability to adjust superblock summary */
95 char usedsoftdep; /* just fix soft dependency inconsistencies */
96 char preen; /* just fix normal inconsistencies */
97 char rerun; /* rerun fsck. Only used in non-preen mode */
98 int returntosingle; /* 1 => return to single user mode on exit */
99 char resolved; /* cleared if unresolved changes => not clean */
100 char havesb; /* superblock has been read */
101 char skipclean; /* skip clean file systems if preening */
102 int fsmodified; /* 1 => write done to file system */
103 int fsreadfd; /* file descriptor for reading file system */
104 int fswritefd; /* file descriptor for writing file system */
105 int surrender; /* Give up if reads fail */
106 int wantrestart; /* Restart fsck on early termination */
107 ufs2_daddr_t maxfsblock; /* number of blocks in the file system */
108 char *blockmap; /* ptr to primary blk allocation map */
109 ino_t maxino; /* number of inodes in file system */
110 ino_t lfdir; /* lost & found directory inode number */
111 const char *lfname; /* lost & found directory name */
112 int lfmode; /* lost & found directory creation mode */
113 ufs2_daddr_t n_blks; /* number of blocks in use */
114 ino_t n_files; /* number of files in use */
115 volatile sig_atomic_t got_siginfo; /* received a SIGINFO */
116 volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */
117 struct ufs1_dinode ufs1_zino;
118 struct ufs2_dinode ufs2_zino;
123 bzero(readcnt, sizeof(long) * BT_NUMBUFTYPES);
124 bzero(totalreadcnt, sizeof(long) * BT_NUMBUFTYPES);
125 bzero(readtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
126 bzero(totalreadtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
127 bzero(&startprog, sizeof(struct timespec));
128 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);
164 lfname = "lost+found";
170 bzero(&ufs1_zino, sizeof(struct ufs1_dinode));
171 bzero(&ufs2_zino, sizeof(struct ufs2_dinode));