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- /*
- * Copyright (c) 1980, 1986 The Regents of the University of California.
- * All rights reserved.
- *
- * 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 acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 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.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1980, 1986 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)main.c 5.27 (Berkeley) 8/7/90";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <ufs/dinode.h>
- #include <ufs/fs.h>
- #include <fstab.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
- #include <stdio.h>
- #include "fsck.h"
-
- void catch(), catchquit(), voidquit();
- int returntosingle;
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- int ch;
- int ret, maxrun = 0;
- extern int docheck(), checkfilesys();
- extern char *optarg;
- extern int optind;
-
- sync();
- while ((ch = getopt(argc, argv, "cdpnNyYb:l:m:")) != EOF) {
- switch (ch) {
- case 'p':
- preen++;
- break;
-
- case 'b':
- bflag = argtoi('b', "number", optarg, 10);
- printf("Alternate super block location: %d\n", bflag);
- break;
-
- case 'c':
- cvtflag++;
- break;
-
- case 'd':
- debug++;
- break;
-
- case 'l':
- maxrun = argtoi('l', "number", optarg, 10);
- break;
-
- case 'm':
- lfmode = argtoi('m', "mode", optarg, 8);
- if (lfmode &~ 07777)
- errexit("bad mode to -m: %o\n", lfmode);
- printf("** lost+found creation mode %o\n", lfmode);
- break;
-
- case 'n':
- case 'N':
- nflag++;
- yflag = 0;
- break;
-
- case 'y':
- case 'Y':
- yflag++;
- nflag = 0;
- break;
-
- default:
- errexit("%c option?\n", ch);
- }
- }
- argc -= optind;
- argv += optind;
- if (signal(SIGINT, SIG_IGN) != SIG_IGN)
- (void)signal(SIGINT, catch);
- if (preen)
- (void)signal(SIGQUIT, catchquit);
- if (argc) {
- while (argc-- > 0)
- (void)checkfilesys(*argv++, (char *)0, 0L, 0);
- exit(0);
- }
- ret = checkfstab(preen, maxrun, docheck, checkfilesys);
- if (returntosingle)
- exit(2);
- exit(ret);
- }
-
- argtoi(flag, req, str, base)
- int flag;
- char *req, *str;
- int base;
- {
- char *cp;
- int ret;
-
- ret = (int)strtol(str, &cp, base);
- if (cp == str || *cp)
- errexit("-%c flag requires a %s\n", flag, req);
- return (ret);
- }
-
- /*
- * Determine whether a filesystem should be checked.
- */
- docheck(fsp)
- register struct fstab *fsp;
- {
-
- if (strcmp(fsp->fs_vfstype, "ufs") ||
- (strcmp(fsp->fs_type, FSTAB_RW) &&
- strcmp(fsp->fs_type, FSTAB_RO)) ||
- fsp->fs_passno == 0)
- return (0);
- return (1);
- }
-
- /*
- * Check the specified filesystem.
- */
- /* ARGSUSED */
- checkfilesys(filesys, mntpt, auxdata, child)
- char *filesys, *mntpt;
- long auxdata;
- {
- daddr_t n_ffree, n_bfree;
- struct dups *dp;
- struct zlncnt *zlnp;
-
- if (preen && child)
- (void)signal(SIGQUIT, voidquit);
- devname = filesys;
- if (debug && preen)
- pwarn("starting\n");
- if (setup(filesys) == 0) {
- if (preen)
- pfatal("CAN'T CHECK FILE SYSTEM.");
- return (0);
- }
- /*
- * 1: scan inodes tallying blocks used
- */
- if (preen == 0) {
- printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
- if (hotroot)
- printf("** Root file system\n");
- printf("** Phase 1 - Check Blocks and Sizes\n");
- }
- pass1();
-
- /*
- * 1b: locate first references to duplicates, if any
- */
- if (duplist) {
- if (preen)
- pfatal("INTERNAL ERROR: dups with -p");
- printf("** Phase 1b - Rescan For More DUPS\n");
- pass1b();
- }
-
- /*
- * 2: traverse directories from root to mark all connected directories
- */
- if (preen == 0)
- printf("** Phase 2 - Check Pathnames\n");
- pass2();
-
- /*
- * 3: scan inodes looking for disconnected directories
- */
- if (preen == 0)
- printf("** Phase 3 - Check Connectivity\n");
- pass3();
-
- /*
- * 4: scan inodes looking for disconnected files; check reference counts
- */
- if (preen == 0)
- printf("** Phase 4 - Check Reference Counts\n");
- pass4();
-
- /*
- * 5: check and repair resource counts in cylinder groups
- */
- if (preen == 0)
- printf("** Phase 5 - Check Cyl groups\n");
- pass5();
-
- /*
- * print out summary statistics
- */
- n_ffree = sblock.fs_cstotal.cs_nffree;
- n_bfree = sblock.fs_cstotal.cs_nbfree;
- pwarn("%ld files, %ld used, %ld free ",
- n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree);
- printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n",
- n_ffree, n_bfree, (float)(n_ffree * 100) / sblock.fs_dsize);
- if (debug &&
- (n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree))
- printf("%ld files missing\n", n_files);
- if (debug) {
- n_blks += sblock.fs_ncg *
- (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
- n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
- n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
- if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree))
- printf("%ld blocks missing\n", n_blks);
- if (duplist != NULL) {
- printf("The following duplicate blocks remain:");
- for (dp = duplist; dp; dp = dp->next)
- printf(" %ld,", dp->dup);
- printf("\n");
- }
- if (zlnhead != NULL) {
- printf("The following zero link count inodes remain:");
- for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
- printf(" %lu,", zlnp->zlncnt);
- printf("\n");
- }
- }
- zlnhead = (struct zlncnt *)0;
- duplist = (struct dups *)0;
- inocleanup();
- if (fsmodified) {
- (void)time(&sblock.fs_time);
- sbdirty();
- }
- ckfini();
- free(blockmap);
- free(statemap);
- free((char *)lncntp);
- if (!fsmodified)
- return (0);
- if (!preen) {
- printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
- if (hotroot)
- printf("\n***** REBOOT UNIX *****\n");
- }
- if (hotroot) {
- sync();
- return (4);
- }
- return (0);
- }
-