2 * Copyright (c) 1980, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 static const char copyright[] =
33 "@(#) Copyright (c) 1980, 1986, 1993\n\
34 The Regents of the University of California. All rights reserved.\n";
38 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
44 #include <sys/param.h>
45 #include <ufs/ufs/dinode.h>
46 #include <ufs/ffs/fs.h>
50 long readcnt[BT_NUMBUFTYPES];
51 long totalreadcnt[BT_NUMBUFTYPES];
52 struct timespec readtime[BT_NUMBUFTYPES];
53 struct timespec totalreadtime[BT_NUMBUFTYPES];
54 struct timespec startprog;
55 struct bufarea sblk; /* file system superblock */
56 struct bufarea *pdirbp; /* current directory contents */
57 struct bufarea *pbp; /* current inode block */
59 long dirhash, inplast;
60 unsigned long numdirs, listmax;
61 long countdirs; /* number of directories we actually found */
62 int adjrefcnt[MIBSIZE]; /* MIB command to adjust inode reference cnt */
63 int adjblkcnt[MIBSIZE]; /* MIB command to adjust inode block count */
64 int setsize[MIBSIZE]; /* MIB command to set inode size */
65 int adjndir[MIBSIZE]; /* MIB command to adjust number of directories */
66 int adjnbfree[MIBSIZE]; /* MIB command to adjust number of free blocks */
67 int adjnifree[MIBSIZE]; /* MIB command to adjust number of free inodes */
68 int adjnffree[MIBSIZE]; /* MIB command to adjust number of free frags */
69 int adjnumclusters[MIBSIZE]; /* MIB command to adjust number of free clusters */
70 int freefiles[MIBSIZE]; /* MIB command to free a set of files */
71 int freedirs[MIBSIZE]; /* MIB command to free a set of directories */
72 int freeblks[MIBSIZE]; /* MIB command to free a set of data blocks */
73 struct fsck_cmd cmd; /* sysctl file system update commands */
74 char snapname[BUFSIZ]; /* when doing snapshots, the name of the file */
75 char *cdevname; /* name of device being checked */
76 long dev_bsize; /* computed value of DEV_BSIZE */
77 long secsize; /* actual disk sector size */
78 u_int real_dev_bsize; /* actual disk sector size, not overridden */
79 char nflag; /* assume a no response */
80 char yflag; /* assume a yes response */
81 int bkgrdflag; /* use a snapshot to run on an active system */
82 ufs2_daddr_t bflag; /* location of alternate super block */
83 int debug; /* output debugging info */
84 int Eflag; /* delete empty data blocks */
85 int Zflag; /* zero empty data blocks */
86 int zflag; /* zero unused directory space */
87 int inoopt; /* trim out unused inodes */
88 char ckclean; /* only do work if not cleanly unmounted */
89 int cvtlevel; /* convert to newer file system format */
90 int bkgrdcheck; /* determine if background check is possible */
91 int bkgrdsumadj; /* whether the kernel have ability to adjust superblock summary */
92 char usedsoftdep; /* just fix soft dependency inconsistencies */
93 char preen; /* just fix normal inconsistencies */
94 char rerun; /* rerun fsck. Only used in non-preen mode */
95 int returntosingle; /* 1 => return to single user mode on exit */
96 char resolved; /* cleared if unresolved changes => not clean */
97 char havesb; /* superblock has been read */
98 char skipclean; /* skip clean file systems if preening */
99 int fsmodified; /* 1 => write done to file system */
100 int fsreadfd; /* file descriptor for reading file system */
101 int fswritefd; /* file descriptor for writing file system */
102 int surrender; /* Give up if reads fail */
103 int wantrestart; /* Restart fsck on early termination */
104 ufs2_daddr_t maxfsblock; /* number of blocks in the file system */
105 char *blockmap; /* ptr to primary blk allocation map */
106 ino_t maxino; /* number of inodes in file system */
107 ino_t lfdir; /* lost & found directory inode number */
108 const char *lfname; /* lost & found directory name */
109 int lfmode; /* lost & found directory creation mode */
110 ufs2_daddr_t n_blks; /* number of blocks in use */
111 ino_t n_files; /* number of files in use */
112 volatile sig_atomic_t got_siginfo; /* received a SIGINFO */
113 volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */
114 struct ufs1_dinode ufs1_zino;
115 struct ufs2_dinode ufs2_zino;
120 bzero(readcnt, sizeof(long) * BT_NUMBUFTYPES);
121 bzero(totalreadcnt, sizeof(long) * BT_NUMBUFTYPES);
122 bzero(readtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
123 bzero(totalreadtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
124 bzero(&startprog, sizeof(struct timespec));
125 bzero(&sblk, sizeof(struct bufarea));
129 listmax = numdirs = dirhash = inplast = 0;
131 bzero(adjrefcnt, sizeof(int) * MIBSIZE);
132 bzero(adjblkcnt, sizeof(int) * MIBSIZE);
133 bzero(setsize, sizeof(int) * MIBSIZE);
134 bzero(adjndir, sizeof(int) * MIBSIZE);
135 bzero(adjnbfree, sizeof(int) * MIBSIZE);
136 bzero(adjnifree, sizeof(int) * MIBSIZE);
137 bzero(adjnffree, sizeof(int) * MIBSIZE);
138 bzero(adjnumclusters, sizeof(int) * MIBSIZE);
139 bzero(freefiles, sizeof(int) * MIBSIZE);
140 bzero(freedirs, sizeof(int) * MIBSIZE);
141 bzero(freeblks, sizeof(int) * MIBSIZE);
142 bzero(&cmd, sizeof(struct fsck_cmd));
143 bzero(snapname, sizeof(char) * BUFSIZ);
161 lfname = "lost+found";
167 bzero(&ufs1_zino, sizeof(struct ufs1_dinode));
168 bzero(&ufs2_zino, sizeof(struct ufs2_dinode));