ccc3fadfd5
floating point better in the percentage calculation there to avoid overflow when there are more than about 20 million fragments. Start using floating point in the other percentage calculation to avoid overflow when there are more than about 2 million fragments. Fixed printf format strings. Converted sccsid to rcsid.
354 lines
8.6 KiB
C
354 lines
8.6 KiB
C
/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1986, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/mount.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ffs/fs.h>
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#include <ctype.h>
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#include <err.h>
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#include <fstab.h>
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#include <string.h>
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#include "fsck.h"
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int returntosingle;
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static int argtoi __P((int flag, char *req, char *str, int base));
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static int docheck __P((struct fstab *fsp));
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static int checkfilesys __P((char *filesys, char *mntpt, long auxdata,
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int child));
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int main __P((int argc, char *argv[]));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int ch;
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int ret, maxrun = 0;
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sync();
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while ((ch = getopt(argc, argv, "dfpnNyYb:c:l:m:")) != -1) {
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switch (ch) {
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case 'p':
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preen++;
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break;
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case 'b':
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bflag = argtoi('b', "number", optarg, 10);
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printf("Alternate super block location: %d\n", bflag);
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break;
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case 'c':
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cvtlevel = argtoi('c', "conversion level", optarg, 10);
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break;
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case 'd':
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debug++;
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break;
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case 'f':
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fflag++;
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break;
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case 'l':
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maxrun = argtoi('l', "number", optarg, 10);
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break;
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case 'm':
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lfmode = argtoi('m', "mode", optarg, 8);
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if (lfmode &~ 07777)
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errx(EEXIT, "bad mode to -m: %o", lfmode);
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printf("** lost+found creation mode %o\n", lfmode);
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break;
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case 'n':
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case 'N':
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nflag++;
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yflag = 0;
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break;
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case 'y':
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case 'Y':
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yflag++;
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nflag = 0;
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break;
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default:
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errx(EEXIT, "%c option?", ch);
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}
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}
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argc -= optind;
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argv += optind;
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if (signal(SIGINT, SIG_IGN) != SIG_IGN)
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(void)signal(SIGINT, catch);
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if (preen)
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(void)signal(SIGQUIT, catchquit);
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if (argc) {
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while (argc-- > 0)
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(void)checkfilesys(blockcheck(*argv++), 0, 0L, 0);
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exit(0);
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}
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ret = checkfstab(preen, maxrun, docheck, checkfilesys);
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if (returntosingle)
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exit(2);
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exit(ret);
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}
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static int
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argtoi(flag, req, str, base)
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int flag;
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char *req, *str;
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int base;
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{
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char *cp;
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int ret;
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ret = (int)strtol(str, &cp, base);
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if (cp == str || *cp)
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errx(EEXIT, "-%c flag requires a %s", flag, req);
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return (ret);
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}
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/*
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* Determine whether a filesystem should be checked.
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*/
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static int
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docheck(fsp)
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register struct fstab *fsp;
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{
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if (strcmp(fsp->fs_vfstype, "ufs") ||
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(strcmp(fsp->fs_type, FSTAB_RW) &&
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strcmp(fsp->fs_type, FSTAB_RO)) ||
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fsp->fs_passno == 0)
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return (0);
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return (1);
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}
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/*
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* Check the specified filesystem.
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*/
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/* ARGSUSED */
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static int
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checkfilesys(filesys, mntpt, auxdata, child)
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char *filesys, *mntpt;
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long auxdata;
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int child;
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{
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ufs_daddr_t n_ffree, n_bfree;
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struct dups *dp;
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struct zlncnt *zlnp;
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int cylno, flags;
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if (preen && child)
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(void)signal(SIGQUIT, voidquit);
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cdevname = filesys;
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if (debug && preen)
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pwarn("starting\n");
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switch (setup(filesys)) {
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case 0:
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if (preen)
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pfatal("CAN'T CHECK FILE SYSTEM.");
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return (0);
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case -1:
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pwarn("clean, %ld free ", sblock.fs_cstotal.cs_nffree +
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sblock.fs_frag * sblock.fs_cstotal.cs_nbfree);
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printf("(%d frags, %d blocks, %.1f%% fragmentation)\n",
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sblock.fs_cstotal.cs_nffree, sblock.fs_cstotal.cs_nbfree,
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sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize);
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return (0);
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}
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/*
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* 1: scan inodes tallying blocks used
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*/
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if (preen == 0) {
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printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
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if (hotroot)
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printf("** Root file system\n");
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printf("** Phase 1 - Check Blocks and Sizes\n");
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}
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pass1();
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/*
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* 1b: locate first references to duplicates, if any
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*/
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if (duplist) {
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if (preen)
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pfatal("INTERNAL ERROR: dups with -p");
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printf("** Phase 1b - Rescan For More DUPS\n");
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pass1b();
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}
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/*
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* 2: traverse directories from root to mark all connected directories
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*/
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if (preen == 0)
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printf("** Phase 2 - Check Pathnames\n");
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pass2();
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/*
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* 3: scan inodes looking for disconnected directories
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*/
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if (preen == 0)
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printf("** Phase 3 - Check Connectivity\n");
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pass3();
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/*
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* 4: scan inodes looking for disconnected files; check reference counts
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*/
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if (preen == 0)
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printf("** Phase 4 - Check Reference Counts\n");
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pass4();
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/*
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* 5: check and repair resource counts in cylinder groups
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*/
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if (preen == 0)
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printf("** Phase 5 - Check Cyl groups\n");
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pass5();
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/*
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* print out summary statistics
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*/
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n_ffree = sblock.fs_cstotal.cs_nffree;
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n_bfree = sblock.fs_cstotal.cs_nbfree;
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pwarn("%ld files, %ld used, %ld free ",
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n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree);
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printf("(%d frags, %d blocks, %.1f%% fragmentation)\n",
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n_ffree, n_bfree, n_ffree * 100.0 / sblock.fs_dsize);
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if (debug &&
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(n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree))
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printf("%d files missing\n", n_files);
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if (debug) {
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n_blks += sblock.fs_ncg *
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(cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
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n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
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n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
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if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree))
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printf("%d blocks missing\n", n_blks);
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if (duplist != NULL) {
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printf("The following duplicate blocks remain:");
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for (dp = duplist; dp; dp = dp->next)
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printf(" %d,", dp->dup);
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printf("\n");
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}
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if (zlnhead != NULL) {
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printf("The following zero link count inodes remain:");
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for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
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printf(" %u,", zlnp->zlncnt);
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printf("\n");
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}
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}
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zlnhead = (struct zlncnt *)0;
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duplist = (struct dups *)0;
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muldup = (struct dups *)0;
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inocleanup();
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if (fsmodified) {
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(void)time(&sblock.fs_time);
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sbdirty();
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}
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if (cvtlevel && sblk.b_dirty) {
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/*
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* Write out the duplicate super blocks
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*/
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for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
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bwrite(fswritefd, (char *)&sblock,
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fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE);
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}
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if (!hotroot) {
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ckfini(1);
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} else {
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struct statfs stfs_buf;
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/*
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* Check to see if root is mounted read-write.
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*/
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if (statfs("/", &stfs_buf) == 0)
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flags = stfs_buf.f_flags;
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else
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flags = 0;
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ckfini(flags & MNT_RDONLY);
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}
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free(blockmap);
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free(statemap);
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free((char *)lncntp);
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if (!fsmodified)
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return (0);
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if (!preen)
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printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
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if (rerun)
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printf("\n***** PLEASE RERUN FSCK *****\n");
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if (hotroot) {
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struct ufs_args args;
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int ret;
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/*
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* We modified the root. Do a mount update on
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* it, unless it is read-write, so we can continue.
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*/
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if (flags & MNT_RDONLY) {
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args.fspec = 0;
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args.export.ex_flags = 0;
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args.export.ex_root = 0;
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flags |= MNT_UPDATE | MNT_RELOAD;
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ret = mount("ufs", "/", flags, &args);
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if (ret == 0)
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return (0);
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}
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if (!preen)
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printf("\n***** REBOOT NOW *****\n");
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sync();
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return (4);
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}
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return (0);
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}
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