main.c revision 126345
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 34114589Sobrien#if 0 351558Srgrimes#ifndef lint 367585Sbdestatic const char copyright[] = 371558Srgrimes"@(#) Copyright (c) 1980, 1986, 1993\n\ 381558Srgrimes The Regents of the University of California. All rights reserved.\n"; 391558Srgrimes#endif /* not lint */ 401558Srgrimes 411558Srgrimes#ifndef lint 4241477Sjulianstatic char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 43114589Sobrien#endif /* not lint */ 4441477Sjulian#endif 4593103Smarkm#include <sys/cdefs.h> 4693103Smarkm__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 126345 2004-02-28 07:50:42Z scottl $"); 4793103Smarkm 481558Srgrimes#include <sys/param.h> 4955275Speter#include <sys/stat.h> 5075557Smckusick#include <sys/file.h> 511558Srgrimes#include <sys/time.h> 521558Srgrimes#include <sys/mount.h> 5340918Smjacob#include <sys/resource.h> 5486514Siedowse#include <sys/sysctl.h> 5598542Smckusick#include <sys/disklabel.h> 5623675Speter 571558Srgrimes#include <ufs/ufs/dinode.h> 5823675Speter#include <ufs/ufs/ufsmount.h> 591558Srgrimes#include <ufs/ffs/fs.h> 6023675Speter 6123675Speter#include <err.h> 6255725Speter#include <errno.h> 631558Srgrimes#include <fstab.h> 64120901Smckusick#include <grp.h> 6555725Speter#include <paths.h> 66101037Smux#include <stdint.h> 6786514Siedowse#include <string.h> 6823675Speter 691558Srgrimes#include "fsck.h" 701558Srgrimes 7192839Simpstatic void usage(void) __dead2; 72100935Sphkstatic int argtoi(int flag, const char *req, const char *str, int base); 7392839Simpstatic int checkfilesys(char *filesys); 7492839Simpstatic struct statfs *getmntpt(const char *); 7523675Speter 767585Sbdeint 7792839Simpmain(int argc, char *argv[]) 781558Srgrimes{ 791558Srgrimes int ch; 8041474Sjulian struct rlimit rlimit; 81126345Sscottl struct itimerval itimerval; 8266861Sadrian int ret = 0; 831558Srgrimes 841558Srgrimes sync(); 8566861Sadrian skipclean = 1; 8675927Smckusick while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 871558Srgrimes switch (ch) { 881558Srgrimes case 'b': 8966861Sadrian skipclean = 0; 901558Srgrimes bflag = argtoi('b', "number", optarg, 10); 911558Srgrimes printf("Alternate super block location: %d\n", bflag); 921558Srgrimes break; 931558Srgrimes 9474556Smckusick case 'B': 9574556Smckusick bkgrdflag = 1; 9674556Smckusick break; 9774556Smckusick 981558Srgrimes case 'c': 9966861Sadrian skipclean = 0; 1001558Srgrimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 10198542Smckusick if (cvtlevel < 3) 10298542Smckusick errx(EEXIT, "cannot do level %d conversion", 10398542Smckusick cvtlevel); 1041558Srgrimes break; 1058871Srgrimes 1061558Srgrimes case 'd': 1071558Srgrimes debug++; 1081558Srgrimes break; 1091558Srgrimes 1102153Sdg case 'f': 11166861Sadrian skipclean = 0; 1122153Sdg break; 1132153Sdg 11475927Smckusick case 'F': 11575927Smckusick bkgrdcheck = 1; 11675927Smckusick break; 11775927Smckusick 1181558Srgrimes case 'm': 1191558Srgrimes lfmode = argtoi('m', "mode", optarg, 8); 1201558Srgrimes if (lfmode &~ 07777) 12123675Speter errx(EEXIT, "bad mode to -m: %o", lfmode); 1221558Srgrimes printf("** lost+found creation mode %o\n", lfmode); 1231558Srgrimes break; 1241558Srgrimes 1251558Srgrimes case 'n': 1261558Srgrimes nflag++; 1271558Srgrimes yflag = 0; 1281558Srgrimes break; 1291558Srgrimes 13066861Sadrian case 'p': 13166861Sadrian preen++; 13266861Sadrian break; 13366861Sadrian 1341558Srgrimes case 'y': 1351558Srgrimes yflag++; 1361558Srgrimes nflag = 0; 1371558Srgrimes break; 1381558Srgrimes 1391558Srgrimes default: 14066861Sadrian usage(); 1411558Srgrimes } 1421558Srgrimes } 1431558Srgrimes argc -= optind; 1441558Srgrimes argv += optind; 14566861Sadrian 14666861Sadrian if (!argc) 14766861Sadrian usage(); 14866861Sadrian 1491558Srgrimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1501558Srgrimes (void)signal(SIGINT, catch); 1511558Srgrimes if (preen) 1521558Srgrimes (void)signal(SIGQUIT, catchquit); 15370050Siedowse signal(SIGINFO, infohandler); 154126345Sscottl if (bkgrdflag) { 155126345Sscottl signal(SIGALRM, alarmhandler); 156126345Sscottl itimerval.it_interval.tv_sec = 5; 157126345Sscottl itimerval.it_interval.tv_usec = 0; 158126345Sscottl itimerval.it_value.tv_sec = 5; 159126345Sscottl itimerval.it_value.tv_usec = 0; 160126345Sscottl setitimer(ITIMER_REAL, &itimerval, NULL); 161126345Sscottl } 16241474Sjulian /* 16341474Sjulian * Push up our allowed memory limit so we can cope 164102231Strhodes * with huge file systems. 16541474Sjulian */ 16641474Sjulian if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 16741474Sjulian rlimit.rlim_cur = rlimit.rlim_max; 16841474Sjulian (void)setrlimit(RLIMIT_DATA, &rlimit); 16941474Sjulian } 17066861Sadrian while (argc-- > 0) 17186514Siedowse (void)checkfilesys(*argv++); 17241474Sjulian 1731558Srgrimes if (returntosingle) 17466861Sadrian ret = 2; 1751558Srgrimes exit(ret); 1761558Srgrimes} 1771558Srgrimes 17823675Speterstatic int 179100935Sphkargtoi(int flag, const char *req, const char *str, int base) 1801558Srgrimes{ 1811558Srgrimes char *cp; 1821558Srgrimes int ret; 1831558Srgrimes 1841558Srgrimes ret = (int)strtol(str, &cp, base); 1851558Srgrimes if (cp == str || *cp) 18623675Speter errx(EEXIT, "-%c flag requires a %s", flag, req); 1871558Srgrimes return (ret); 1881558Srgrimes} 1891558Srgrimes 1901558Srgrimes/* 191102231Strhodes * Check the specified file system. 1921558Srgrimes */ 1931558Srgrimes/* ARGSUSED */ 19423675Speterstatic int 19592839Simpcheckfilesys(char *filesys) 1961558Srgrimes{ 19798542Smckusick ufs2_daddr_t n_ffree, n_bfree; 19874556Smckusick struct ufs_args args; 1991558Srgrimes struct dups *dp; 20074556Smckusick struct statfs *mntp; 2011558Srgrimes struct zlncnt *zlnp; 202120901Smckusick struct stat snapdir; 203120901Smckusick struct group *grp; 20498542Smckusick ufs2_daddr_t blks; 205101037Smux int cylno, ret; 20698542Smckusick ino_t files; 207101037Smux size_t size; 2081558Srgrimes 2091558Srgrimes cdevname = filesys; 2101558Srgrimes if (debug && preen) 2111558Srgrimes pwarn("starting\n"); 21275927Smckusick /* 21375927Smckusick * Make best effort to get the disk name. Check first to see 214102231Strhodes * if it is listed among the mounted file systems. Failing that 21575927Smckusick * check to see if it is listed in /etc/fstab. 21675927Smckusick */ 21775927Smckusick mntp = getmntpt(filesys); 21875927Smckusick if (mntp != NULL) 21975927Smckusick filesys = mntp->f_mntfromname; 22075927Smckusick else 22175927Smckusick filesys = blockcheck(filesys); 22275927Smckusick /* 22375927Smckusick * If -F flag specified, check to see whether a background check 22475927Smckusick * is possible and needed. If possible and needed, exit with 22575927Smckusick * status zero. Otherwise exit with status non-zero. A non-zero 22675927Smckusick * exit status will cause a foreground check to be run. 22775927Smckusick */ 22875557Smckusick sblock_init(); 22975927Smckusick if (bkgrdcheck) { 23075927Smckusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 23175927Smckusick exit(3); /* Cannot read superblock */ 23275927Smckusick close(fsreadfd); 23375927Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) 23475927Smckusick exit(4); /* Earlier background failed */ 23575927Smckusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 23675927Smckusick exit(5); /* Not running soft updates */ 23775927Smckusick size = MIBSIZE; 23875927Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 23975927Smckusick exit(6); /* Lacks kernel support */ 24075927Smckusick if ((mntp == NULL && sblock.fs_clean == 1) || 24175927Smckusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 24275927Smckusick exit(7); /* Filesystem clean, report it now */ 24375927Smckusick exit(0); 24475927Smckusick } 24574556Smckusick /* 24674556Smckusick * If we are to do a background check: 247102231Strhodes * Get the mount point information of the file system 24874556Smckusick * create snapshot file 24974556Smckusick * return created snapshot file 25074556Smckusick * if not found, clear bkgrdflag and proceed with normal fsck 25174556Smckusick */ 25274556Smckusick if (bkgrdflag) { 25374556Smckusick if (mntp == NULL) { 25474556Smckusick bkgrdflag = 0; 25575557Smckusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 25674556Smckusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 25774556Smckusick bkgrdflag = 0; 25875557Smckusick pfatal("NOT USING SOFT UPDATES, %s\n", 25975557Smckusick "CANNOT RUN IN BACKGROUND"); 26074556Smckusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 26174556Smckusick bkgrdflag = 0; 26275557Smckusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 26375557Smckusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 26475557Smckusick if (readsb(0) != 0) { 26575557Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) { 26675557Smckusick bkgrdflag = 0; 26775557Smckusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 26875557Smckusick "CANNOT RUN IN BACKGROUND\n"); 26975557Smckusick } 27075557Smckusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 27175557Smckusick skipclean && preen) { 27275557Smckusick /* 273102231Strhodes * file system is clean; 27475557Smckusick * skip snapshot and report it clean 27575557Smckusick */ 276118302Sru pwarn("FILE SYSTEM CLEAN; %s\n", 27775557Smckusick "SKIPPING CHECKS"); 27875557Smckusick goto clean; 27975557Smckusick } 28075557Smckusick } 28175557Smckusick close(fsreadfd); 28275557Smckusick } 28375557Smckusick if (bkgrdflag) { 284120901Smckusick snprintf(snapname, sizeof snapname, "%s/.snap", 28574556Smckusick mntp->f_mntonname); 286120901Smckusick if (stat(snapname, &snapdir) < 0) { 287120901Smckusick if (errno != ENOENT) { 288120901Smckusick bkgrdflag = 0; 289120901Smckusick pfatal("CANNOT FIND %s %s: %s, %s\n", 290120901Smckusick "SNAPSHOT DIRECTORY", 291120901Smckusick snapname, strerror(errno), 292120901Smckusick "CANNOT RUN IN BACKGROUND"); 293120901Smckusick } else if ((grp = getgrnam("operator")) == 0 || 294120901Smckusick mkdir(snapname, 0770) < 0 || 295120901Smckusick chown(snapname, -1, grp->gr_gid) < 0 || 296120901Smckusick chmod(snapname, 0770) < 0) { 297120901Smckusick bkgrdflag = 0; 298120901Smckusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 299120901Smckusick "SNAPSHOT DIRECTORY", 300120901Smckusick snapname, strerror(errno), 301120901Smckusick "CANNOT RUN IN BACKGROUND"); 302120901Smckusick } 303120901Smckusick } else if (!S_ISDIR(snapdir.st_mode)) { 304120901Smckusick bkgrdflag = 0; 305120901Smckusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 306120901Smckusick "CANNOT RUN IN BACKGROUND"); 307120901Smckusick } 308120901Smckusick } 309120901Smckusick if (bkgrdflag) { 310120901Smckusick snprintf(snapname, sizeof snapname, 311120901Smckusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 31274556Smckusick args.fspec = snapname; 31374556Smckusick while (mount("ffs", mntp->f_mntonname, 31474556Smckusick mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 31574556Smckusick &args) < 0) { 31674556Smckusick if (errno == EEXIST && unlink(snapname) == 0) 31774556Smckusick continue; 31874556Smckusick bkgrdflag = 0; 31975557Smckusick pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 32074556Smckusick snapname, strerror(errno)); 32174556Smckusick break; 32274556Smckusick } 32374556Smckusick if (bkgrdflag != 0) 32474556Smckusick filesys = snapname; 32574556Smckusick } 32674556Smckusick } 32774556Smckusick 32823675Speter switch (setup(filesys)) { 32923675Speter case 0: 3301558Srgrimes if (preen) 3311558Srgrimes pfatal("CAN'T CHECK FILE SYSTEM."); 33241477Sjulian return (0); 33323675Speter case -1: 33475557Smckusick clean: 33586514Siedowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 33686514Siedowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 337100935Sphk printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 338100935Sphk (long long)sblock.fs_cstotal.cs_nffree, 339100935Sphk (long long)sblock.fs_cstotal.cs_nbfree, 34041477Sjulian sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 34131904Sbde return (0); 3422153Sdg } 34355275Speter 34455275Speter /* 34534266Sjulian * Cleared if any questions answered no. Used to decide if 34634266Sjulian * the superblock should be marked clean. 34734266Sjulian */ 34834266Sjulian resolved = 1; 34934266Sjulian /* 3501558Srgrimes * 1: scan inodes tallying blocks used 3511558Srgrimes */ 3521558Srgrimes if (preen == 0) { 3531558Srgrimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 35474556Smckusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 355102231Strhodes printf("** Root file system\n"); 3561558Srgrimes printf("** Phase 1 - Check Blocks and Sizes\n"); 3571558Srgrimes } 3581558Srgrimes pass1(); 3591558Srgrimes 3601558Srgrimes /* 3611558Srgrimes * 1b: locate first references to duplicates, if any 3621558Srgrimes */ 3631558Srgrimes if (duplist) { 36434266Sjulian if (preen || usedsoftdep) 3651558Srgrimes pfatal("INTERNAL ERROR: dups with -p"); 3661558Srgrimes printf("** Phase 1b - Rescan For More DUPS\n"); 3671558Srgrimes pass1b(); 3681558Srgrimes } 3691558Srgrimes 3701558Srgrimes /* 3711558Srgrimes * 2: traverse directories from root to mark all connected directories 3721558Srgrimes */ 3731558Srgrimes if (preen == 0) 3741558Srgrimes printf("** Phase 2 - Check Pathnames\n"); 3751558Srgrimes pass2(); 3761558Srgrimes 3771558Srgrimes /* 3781558Srgrimes * 3: scan inodes looking for disconnected directories 3791558Srgrimes */ 3801558Srgrimes if (preen == 0) 3811558Srgrimes printf("** Phase 3 - Check Connectivity\n"); 3821558Srgrimes pass3(); 3831558Srgrimes 3841558Srgrimes /* 3851558Srgrimes * 4: scan inodes looking for disconnected files; check reference counts 3861558Srgrimes */ 3871558Srgrimes if (preen == 0) 3881558Srgrimes printf("** Phase 4 - Check Reference Counts\n"); 3891558Srgrimes pass4(); 3901558Srgrimes 3911558Srgrimes /* 3921558Srgrimes * 5: check and repair resource counts in cylinder groups 3931558Srgrimes */ 3941558Srgrimes if (preen == 0) 3951558Srgrimes printf("** Phase 5 - Check Cyl groups\n"); 3961558Srgrimes pass5(); 3971558Srgrimes 3981558Srgrimes /* 3991558Srgrimes * print out summary statistics 4001558Srgrimes */ 4011558Srgrimes n_ffree = sblock.fs_cstotal.cs_nffree; 4021558Srgrimes n_bfree = sblock.fs_cstotal.cs_nbfree; 40374556Smckusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 40474556Smckusick blks = n_blks + 40574556Smckusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 40674556Smckusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 40774556Smckusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 40874556Smckusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 40974556Smckusick if (bkgrdflag && (files > 0 || blks > 0)) { 41074556Smckusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 411100935Sphk pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 412100935Sphk countdirs, (long)files - countdirs, (long long)blks); 41374556Smckusick } 414101037Smux pwarn("%ld files, %jd used, %ju free ", 415101037Smux (long)n_files, (intmax_t)n_blks, 416101037Smux (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 417101037Smux printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 418101037Smux (uintmax_t)n_ffree, (uintmax_t)n_bfree, 419101037Smux n_ffree * 100.0 / sblock.fs_dsize); 4201558Srgrimes if (debug) { 42174556Smckusick if (files < 0) 42274556Smckusick printf("%d inodes missing\n", -files); 42374556Smckusick if (blks < 0) 424100935Sphk printf("%lld blocks missing\n", -(long long)blks); 4251558Srgrimes if (duplist != NULL) { 4261558Srgrimes printf("The following duplicate blocks remain:"); 4271558Srgrimes for (dp = duplist; dp; dp = dp->next) 428100935Sphk printf(" %lld,", (long long)dp->dup); 4291558Srgrimes printf("\n"); 4301558Srgrimes } 4311558Srgrimes if (zlnhead != NULL) { 4321558Srgrimes printf("The following zero link count inodes remain:"); 4331558Srgrimes for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 43431904Sbde printf(" %u,", zlnp->zlncnt); 4351558Srgrimes printf("\n"); 4361558Srgrimes } 4371558Srgrimes } 4381558Srgrimes zlnhead = (struct zlncnt *)0; 4391558Srgrimes duplist = (struct dups *)0; 4401558Srgrimes muldup = (struct dups *)0; 4411558Srgrimes inocleanup(); 4422179Sdg if (fsmodified) { 44341474Sjulian sblock.fs_time = time(NULL); 4441558Srgrimes sbdirty(); 4451558Srgrimes } 4461558Srgrimes if (cvtlevel && sblk.b_dirty) { 4478871Srgrimes /* 4481558Srgrimes * Write out the duplicate super blocks 4491558Srgrimes */ 4501558Srgrimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 4511558Srgrimes bwrite(fswritefd, (char *)&sblock, 45298542Smckusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 45398542Smckusick SBLOCKSIZE); 4541558Srgrimes } 45534266Sjulian if (rerun) 45634266Sjulian resolved = 0; 45755275Speter 45855725Speter /* 459102231Strhodes * Check to see if the file system is mounted read-write. 46055725Speter */ 46174556Smckusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 46255275Speter resolved = 0; 46334266Sjulian ckfini(resolved); 46441474Sjulian 46541474Sjulian for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 46641474Sjulian if (inostathead[cylno].il_stat != NULL) 46741474Sjulian free((char *)inostathead[cylno].il_stat); 46841474Sjulian free((char *)inostathead); 46941474Sjulian inostathead = NULL; 47041474Sjulian if (fsmodified && !preen) 4711558Srgrimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 47218808Sguido if (rerun) 47318808Sguido printf("\n***** PLEASE RERUN FSCK *****\n"); 47474556Smckusick if (mntp != NULL) { 47555725Speter /* 476102231Strhodes * We modified a mounted file system. Do a mount update on 47755725Speter * it unless it is read-write, so we can continue using it 47855725Speter * as safely as possible. 47955725Speter */ 48074556Smckusick if (mntp->f_flags & MNT_RDONLY) { 48155725Speter args.fspec = 0; 48255725Speter args.export.ex_flags = 0; 48355725Speter args.export.ex_root = 0; 48474556Smckusick ret = mount("ufs", mntp->f_mntonname, 48574556Smckusick mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 48655725Speter if (ret == 0) 48755725Speter return (0); 48855725Speter pwarn("mount reload of '%s' failed: %s\n\n", 48974556Smckusick mntp->f_mntonname, strerror(errno)); 49055725Speter } 49141474Sjulian if (!fsmodified) 49241474Sjulian return (0); 4931558Srgrimes if (!preen) 4941558Srgrimes printf("\n***** REBOOT NOW *****\n"); 4951558Srgrimes sync(); 4961558Srgrimes return (4); 4971558Srgrimes } 4981558Srgrimes return (0); 4991558Srgrimes} 50055275Speter 50155275Speter/* 50275927Smckusick * Get the mount point information for name. 50355275Speter */ 50455275Speterstatic struct statfs * 50592839Simpgetmntpt(const char *name) 50655275Speter{ 50755725Speter struct stat devstat, mntdevstat; 50855725Speter char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 509100935Sphk char *ddevname; 51075927Smckusick struct statfs *mntbuf, *statfsp; 51175927Smckusick int i, mntsize, isdev; 51255275Speter 51375927Smckusick if (stat(name, &devstat) != 0) 51455275Speter return (NULL); 51575927Smckusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 51675927Smckusick isdev = 1; 51775927Smckusick else 51875927Smckusick isdev = 0; 51955275Speter mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 52055275Speter for (i = 0; i < mntsize; i++) { 52175927Smckusick statfsp = &mntbuf[i]; 522100935Sphk ddevname = statfsp->f_mntfromname; 523100935Sphk if (*ddevname != '/') { 52455725Speter strcpy(device, _PATH_DEV); 525100935Sphk strcat(device, ddevname); 52675927Smckusick strcpy(statfsp->f_mntfromname, device); 52755725Speter } 52875927Smckusick if (isdev == 0) { 52975927Smckusick if (strcmp(name, statfsp->f_mntonname)) 53075927Smckusick continue; 53175927Smckusick return (statfsp); 53275927Smckusick } 533100935Sphk if (stat(ddevname, &mntdevstat) == 0 && 53455725Speter mntdevstat.st_rdev == devstat.st_rdev) 53575927Smckusick return (statfsp); 53655275Speter } 53775927Smckusick statfsp = NULL; 53875927Smckusick return (statfsp); 53955275Speter} 54066861Sadrian 54166861Sadrianstatic void 54292839Simpusage(void) 54366861Sadrian{ 54466861Sadrian (void) fprintf(stderr, 54595258Sdes "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 546102231Strhodes "file system ...\n", 54793103Smarkm getprogname()); 54866861Sadrian exit(1); 54966861Sadrian} 550