main.c revision 130245
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 * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 327585Sbdestatic const char copyright[] = 331558Srgrimes"@(#) Copyright (c) 1980, 1986, 1993\n\ 341558Srgrimes The Regents of the University of California. All rights reserved.\n"; 351558Srgrimes#endif /* not lint */ 361558Srgrimes 371558Srgrimes#ifndef lint 3841477Sjulianstatic char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 39114589Sobrien#endif /* not lint */ 4041477Sjulian#endif 4193103Smarkm#include <sys/cdefs.h> 4293103Smarkm__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 128073 2004-04-09 19:58:40Z markm $"); 4393103Smarkm 441558Srgrimes#include <sys/param.h> 4555275Speter#include <sys/stat.h> 4675557Smckusick#include <sys/file.h> 471558Srgrimes#include <sys/time.h> 481558Srgrimes#include <sys/mount.h> 4940918Smjacob#include <sys/resource.h> 5086514Siedowse#include <sys/sysctl.h> 5198542Smckusick#include <sys/disklabel.h> 5223675Speter 531558Srgrimes#include <ufs/ufs/dinode.h> 5423675Speter#include <ufs/ufs/ufsmount.h> 551558Srgrimes#include <ufs/ffs/fs.h> 5623675Speter 5723675Speter#include <err.h> 5855725Speter#include <errno.h> 591558Srgrimes#include <fstab.h> 60120901Smckusick#include <grp.h> 6155725Speter#include <paths.h> 62101037Smux#include <stdint.h> 6386514Siedowse#include <string.h> 6423675Speter 651558Srgrimes#include "fsck.h" 661558Srgrimes 6792839Simpstatic void usage(void) __dead2; 68100935Sphkstatic int argtoi(int flag, const char *req, const char *str, int base); 6992839Simpstatic int checkfilesys(char *filesys); 7092839Simpstatic struct statfs *getmntpt(const char *); 7123675Speter 727585Sbdeint 7392839Simpmain(int argc, char *argv[]) 741558Srgrimes{ 751558Srgrimes int ch; 7641474Sjulian struct rlimit rlimit; 77126345Sscottl struct itimerval itimerval; 7866861Sadrian int ret = 0; 791558Srgrimes 801558Srgrimes sync(); 8166861Sadrian skipclean = 1; 8275927Smckusick while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 831558Srgrimes switch (ch) { 841558Srgrimes case 'b': 8566861Sadrian skipclean = 0; 861558Srgrimes bflag = argtoi('b', "number", optarg, 10); 871558Srgrimes printf("Alternate super block location: %d\n", bflag); 881558Srgrimes break; 891558Srgrimes 9074556Smckusick case 'B': 9174556Smckusick bkgrdflag = 1; 9274556Smckusick break; 9374556Smckusick 941558Srgrimes case 'c': 9566861Sadrian skipclean = 0; 961558Srgrimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 9798542Smckusick if (cvtlevel < 3) 9898542Smckusick errx(EEXIT, "cannot do level %d conversion", 9998542Smckusick cvtlevel); 1001558Srgrimes break; 1018871Srgrimes 1021558Srgrimes case 'd': 1031558Srgrimes debug++; 1041558Srgrimes break; 1051558Srgrimes 1062153Sdg case 'f': 10766861Sadrian skipclean = 0; 1082153Sdg break; 1092153Sdg 11075927Smckusick case 'F': 11175927Smckusick bkgrdcheck = 1; 11275927Smckusick break; 11375927Smckusick 1141558Srgrimes case 'm': 1151558Srgrimes lfmode = argtoi('m', "mode", optarg, 8); 1161558Srgrimes if (lfmode &~ 07777) 11723675Speter errx(EEXIT, "bad mode to -m: %o", lfmode); 1181558Srgrimes printf("** lost+found creation mode %o\n", lfmode); 1191558Srgrimes break; 1201558Srgrimes 1211558Srgrimes case 'n': 1221558Srgrimes nflag++; 1231558Srgrimes yflag = 0; 1241558Srgrimes break; 1251558Srgrimes 12666861Sadrian case 'p': 12766861Sadrian preen++; 12866861Sadrian break; 12966861Sadrian 1301558Srgrimes case 'y': 1311558Srgrimes yflag++; 1321558Srgrimes nflag = 0; 1331558Srgrimes break; 1341558Srgrimes 1351558Srgrimes default: 13666861Sadrian usage(); 1371558Srgrimes } 1381558Srgrimes } 1391558Srgrimes argc -= optind; 1401558Srgrimes argv += optind; 14166861Sadrian 14266861Sadrian if (!argc) 14366861Sadrian usage(); 14466861Sadrian 1451558Srgrimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1461558Srgrimes (void)signal(SIGINT, catch); 1471558Srgrimes if (preen) 1481558Srgrimes (void)signal(SIGQUIT, catchquit); 14970050Siedowse signal(SIGINFO, infohandler); 150126345Sscottl if (bkgrdflag) { 151126345Sscottl signal(SIGALRM, alarmhandler); 152126345Sscottl itimerval.it_interval.tv_sec = 5; 153126345Sscottl itimerval.it_interval.tv_usec = 0; 154126345Sscottl itimerval.it_value.tv_sec = 5; 155126345Sscottl itimerval.it_value.tv_usec = 0; 156126345Sscottl setitimer(ITIMER_REAL, &itimerval, NULL); 157126345Sscottl } 15841474Sjulian /* 15941474Sjulian * Push up our allowed memory limit so we can cope 160102231Strhodes * with huge file systems. 16141474Sjulian */ 16241474Sjulian if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 16341474Sjulian rlimit.rlim_cur = rlimit.rlim_max; 16441474Sjulian (void)setrlimit(RLIMIT_DATA, &rlimit); 16541474Sjulian } 16666861Sadrian while (argc-- > 0) 16786514Siedowse (void)checkfilesys(*argv++); 16841474Sjulian 1691558Srgrimes if (returntosingle) 17066861Sadrian ret = 2; 1711558Srgrimes exit(ret); 1721558Srgrimes} 1731558Srgrimes 17423675Speterstatic int 175100935Sphkargtoi(int flag, const char *req, const char *str, int base) 1761558Srgrimes{ 1771558Srgrimes char *cp; 1781558Srgrimes int ret; 1791558Srgrimes 1801558Srgrimes ret = (int)strtol(str, &cp, base); 1811558Srgrimes if (cp == str || *cp) 18223675Speter errx(EEXIT, "-%c flag requires a %s", flag, req); 1831558Srgrimes return (ret); 1841558Srgrimes} 1851558Srgrimes 1861558Srgrimes/* 187102231Strhodes * Check the specified file system. 1881558Srgrimes */ 1891558Srgrimes/* ARGSUSED */ 19023675Speterstatic int 19192839Simpcheckfilesys(char *filesys) 1921558Srgrimes{ 19398542Smckusick ufs2_daddr_t n_ffree, n_bfree; 19474556Smckusick struct ufs_args args; 1951558Srgrimes struct dups *dp; 19674556Smckusick struct statfs *mntp; 1971558Srgrimes struct zlncnt *zlnp; 198120901Smckusick struct stat snapdir; 199120901Smckusick struct group *grp; 20098542Smckusick ufs2_daddr_t blks; 201101037Smux int cylno, ret; 20298542Smckusick ino_t files; 203101037Smux size_t size; 2041558Srgrimes 2051558Srgrimes cdevname = filesys; 2061558Srgrimes if (debug && preen) 2071558Srgrimes pwarn("starting\n"); 20875927Smckusick /* 20975927Smckusick * Make best effort to get the disk name. Check first to see 210102231Strhodes * if it is listed among the mounted file systems. Failing that 21175927Smckusick * check to see if it is listed in /etc/fstab. 21275927Smckusick */ 21375927Smckusick mntp = getmntpt(filesys); 21475927Smckusick if (mntp != NULL) 21575927Smckusick filesys = mntp->f_mntfromname; 21675927Smckusick else 21775927Smckusick filesys = blockcheck(filesys); 21875927Smckusick /* 21975927Smckusick * If -F flag specified, check to see whether a background check 22075927Smckusick * is possible and needed. If possible and needed, exit with 22175927Smckusick * status zero. Otherwise exit with status non-zero. A non-zero 22275927Smckusick * exit status will cause a foreground check to be run. 22375927Smckusick */ 22475557Smckusick sblock_init(); 22575927Smckusick if (bkgrdcheck) { 22675927Smckusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 22775927Smckusick exit(3); /* Cannot read superblock */ 22875927Smckusick close(fsreadfd); 22975927Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) 23075927Smckusick exit(4); /* Earlier background failed */ 23175927Smckusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 23275927Smckusick exit(5); /* Not running soft updates */ 23375927Smckusick size = MIBSIZE; 23475927Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 23575927Smckusick exit(6); /* Lacks kernel support */ 23675927Smckusick if ((mntp == NULL && sblock.fs_clean == 1) || 23775927Smckusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 23875927Smckusick exit(7); /* Filesystem clean, report it now */ 23975927Smckusick exit(0); 24075927Smckusick } 24174556Smckusick /* 24274556Smckusick * If we are to do a background check: 243102231Strhodes * Get the mount point information of the file system 24474556Smckusick * create snapshot file 24574556Smckusick * return created snapshot file 24674556Smckusick * if not found, clear bkgrdflag and proceed with normal fsck 24774556Smckusick */ 24874556Smckusick if (bkgrdflag) { 24974556Smckusick if (mntp == NULL) { 25074556Smckusick bkgrdflag = 0; 25175557Smckusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 25274556Smckusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 25374556Smckusick bkgrdflag = 0; 25475557Smckusick pfatal("NOT USING SOFT UPDATES, %s\n", 25575557Smckusick "CANNOT RUN IN BACKGROUND"); 25674556Smckusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 25774556Smckusick bkgrdflag = 0; 25875557Smckusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 25975557Smckusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 26075557Smckusick if (readsb(0) != 0) { 26175557Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) { 26275557Smckusick bkgrdflag = 0; 26375557Smckusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 26475557Smckusick "CANNOT RUN IN BACKGROUND\n"); 26575557Smckusick } 26675557Smckusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 26775557Smckusick skipclean && preen) { 26875557Smckusick /* 269102231Strhodes * file system is clean; 27075557Smckusick * skip snapshot and report it clean 27175557Smckusick */ 272118302Sru pwarn("FILE SYSTEM CLEAN; %s\n", 27375557Smckusick "SKIPPING CHECKS"); 27475557Smckusick goto clean; 27575557Smckusick } 27675557Smckusick } 27775557Smckusick close(fsreadfd); 27875557Smckusick } 27975557Smckusick if (bkgrdflag) { 280120901Smckusick snprintf(snapname, sizeof snapname, "%s/.snap", 28174556Smckusick mntp->f_mntonname); 282120901Smckusick if (stat(snapname, &snapdir) < 0) { 283120901Smckusick if (errno != ENOENT) { 284120901Smckusick bkgrdflag = 0; 285120901Smckusick pfatal("CANNOT FIND %s %s: %s, %s\n", 286120901Smckusick "SNAPSHOT DIRECTORY", 287120901Smckusick snapname, strerror(errno), 288120901Smckusick "CANNOT RUN IN BACKGROUND"); 289120901Smckusick } else if ((grp = getgrnam("operator")) == 0 || 290120901Smckusick mkdir(snapname, 0770) < 0 || 291120901Smckusick chown(snapname, -1, grp->gr_gid) < 0 || 292120901Smckusick chmod(snapname, 0770) < 0) { 293120901Smckusick bkgrdflag = 0; 294120901Smckusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 295120901Smckusick "SNAPSHOT DIRECTORY", 296120901Smckusick snapname, strerror(errno), 297120901Smckusick "CANNOT RUN IN BACKGROUND"); 298120901Smckusick } 299120901Smckusick } else if (!S_ISDIR(snapdir.st_mode)) { 300120901Smckusick bkgrdflag = 0; 301120901Smckusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 302120901Smckusick "CANNOT RUN IN BACKGROUND"); 303120901Smckusick } 304120901Smckusick } 305120901Smckusick if (bkgrdflag) { 306120901Smckusick snprintf(snapname, sizeof snapname, 307120901Smckusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 30874556Smckusick args.fspec = snapname; 30974556Smckusick while (mount("ffs", mntp->f_mntonname, 31074556Smckusick mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 31174556Smckusick &args) < 0) { 31274556Smckusick if (errno == EEXIST && unlink(snapname) == 0) 31374556Smckusick continue; 31474556Smckusick bkgrdflag = 0; 31575557Smckusick pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 31674556Smckusick snapname, strerror(errno)); 31774556Smckusick break; 31874556Smckusick } 31974556Smckusick if (bkgrdflag != 0) 32074556Smckusick filesys = snapname; 32174556Smckusick } 32274556Smckusick } 32374556Smckusick 32423675Speter switch (setup(filesys)) { 32523675Speter case 0: 3261558Srgrimes if (preen) 3271558Srgrimes pfatal("CAN'T CHECK FILE SYSTEM."); 32841477Sjulian return (0); 32923675Speter case -1: 33075557Smckusick clean: 33186514Siedowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 33286514Siedowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 333100935Sphk printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 334100935Sphk (long long)sblock.fs_cstotal.cs_nffree, 335100935Sphk (long long)sblock.fs_cstotal.cs_nbfree, 33641477Sjulian sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 33731904Sbde return (0); 3382153Sdg } 33955275Speter 34055275Speter /* 34134266Sjulian * Cleared if any questions answered no. Used to decide if 34234266Sjulian * the superblock should be marked clean. 34334266Sjulian */ 34434266Sjulian resolved = 1; 34534266Sjulian /* 3461558Srgrimes * 1: scan inodes tallying blocks used 3471558Srgrimes */ 3481558Srgrimes if (preen == 0) { 3491558Srgrimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 35074556Smckusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 351102231Strhodes printf("** Root file system\n"); 3521558Srgrimes printf("** Phase 1 - Check Blocks and Sizes\n"); 3531558Srgrimes } 3541558Srgrimes pass1(); 3551558Srgrimes 3561558Srgrimes /* 3571558Srgrimes * 1b: locate first references to duplicates, if any 3581558Srgrimes */ 3591558Srgrimes if (duplist) { 36034266Sjulian if (preen || usedsoftdep) 3611558Srgrimes pfatal("INTERNAL ERROR: dups with -p"); 3621558Srgrimes printf("** Phase 1b - Rescan For More DUPS\n"); 3631558Srgrimes pass1b(); 3641558Srgrimes } 3651558Srgrimes 3661558Srgrimes /* 3671558Srgrimes * 2: traverse directories from root to mark all connected directories 3681558Srgrimes */ 3691558Srgrimes if (preen == 0) 3701558Srgrimes printf("** Phase 2 - Check Pathnames\n"); 3711558Srgrimes pass2(); 3721558Srgrimes 3731558Srgrimes /* 3741558Srgrimes * 3: scan inodes looking for disconnected directories 3751558Srgrimes */ 3761558Srgrimes if (preen == 0) 3771558Srgrimes printf("** Phase 3 - Check Connectivity\n"); 3781558Srgrimes pass3(); 3791558Srgrimes 3801558Srgrimes /* 3811558Srgrimes * 4: scan inodes looking for disconnected files; check reference counts 3821558Srgrimes */ 3831558Srgrimes if (preen == 0) 3841558Srgrimes printf("** Phase 4 - Check Reference Counts\n"); 3851558Srgrimes pass4(); 3861558Srgrimes 3871558Srgrimes /* 3881558Srgrimes * 5: check and repair resource counts in cylinder groups 3891558Srgrimes */ 3901558Srgrimes if (preen == 0) 3911558Srgrimes printf("** Phase 5 - Check Cyl groups\n"); 3921558Srgrimes pass5(); 3931558Srgrimes 3941558Srgrimes /* 3951558Srgrimes * print out summary statistics 3961558Srgrimes */ 3971558Srgrimes n_ffree = sblock.fs_cstotal.cs_nffree; 3981558Srgrimes n_bfree = sblock.fs_cstotal.cs_nbfree; 39974556Smckusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 40074556Smckusick blks = n_blks + 40174556Smckusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 40274556Smckusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 40374556Smckusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 40474556Smckusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 40574556Smckusick if (bkgrdflag && (files > 0 || blks > 0)) { 40674556Smckusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 407100935Sphk pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 408100935Sphk countdirs, (long)files - countdirs, (long long)blks); 40974556Smckusick } 410101037Smux pwarn("%ld files, %jd used, %ju free ", 411101037Smux (long)n_files, (intmax_t)n_blks, 412101037Smux (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 413101037Smux printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 414101037Smux (uintmax_t)n_ffree, (uintmax_t)n_bfree, 415101037Smux n_ffree * 100.0 / sblock.fs_dsize); 4161558Srgrimes if (debug) { 41774556Smckusick if (files < 0) 41874556Smckusick printf("%d inodes missing\n", -files); 41974556Smckusick if (blks < 0) 420100935Sphk printf("%lld blocks missing\n", -(long long)blks); 4211558Srgrimes if (duplist != NULL) { 4221558Srgrimes printf("The following duplicate blocks remain:"); 4231558Srgrimes for (dp = duplist; dp; dp = dp->next) 424100935Sphk printf(" %lld,", (long long)dp->dup); 4251558Srgrimes printf("\n"); 4261558Srgrimes } 4271558Srgrimes if (zlnhead != NULL) { 4281558Srgrimes printf("The following zero link count inodes remain:"); 4291558Srgrimes for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 43031904Sbde printf(" %u,", zlnp->zlncnt); 4311558Srgrimes printf("\n"); 4321558Srgrimes } 4331558Srgrimes } 4341558Srgrimes zlnhead = (struct zlncnt *)0; 4351558Srgrimes duplist = (struct dups *)0; 4361558Srgrimes muldup = (struct dups *)0; 4371558Srgrimes inocleanup(); 4382179Sdg if (fsmodified) { 43941474Sjulian sblock.fs_time = time(NULL); 4401558Srgrimes sbdirty(); 4411558Srgrimes } 4421558Srgrimes if (cvtlevel && sblk.b_dirty) { 4438871Srgrimes /* 4441558Srgrimes * Write out the duplicate super blocks 4451558Srgrimes */ 4461558Srgrimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 4471558Srgrimes bwrite(fswritefd, (char *)&sblock, 44898542Smckusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 44998542Smckusick SBLOCKSIZE); 4501558Srgrimes } 45134266Sjulian if (rerun) 45234266Sjulian resolved = 0; 45355275Speter 45455725Speter /* 455102231Strhodes * Check to see if the file system is mounted read-write. 45655725Speter */ 45774556Smckusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 45855275Speter resolved = 0; 45934266Sjulian ckfini(resolved); 46041474Sjulian 46141474Sjulian for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 46241474Sjulian if (inostathead[cylno].il_stat != NULL) 46341474Sjulian free((char *)inostathead[cylno].il_stat); 46441474Sjulian free((char *)inostathead); 46541474Sjulian inostathead = NULL; 46641474Sjulian if (fsmodified && !preen) 4671558Srgrimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 46818808Sguido if (rerun) 46918808Sguido printf("\n***** PLEASE RERUN FSCK *****\n"); 47074556Smckusick if (mntp != NULL) { 47155725Speter /* 472102231Strhodes * We modified a mounted file system. Do a mount update on 47355725Speter * it unless it is read-write, so we can continue using it 47455725Speter * as safely as possible. 47555725Speter */ 47674556Smckusick if (mntp->f_flags & MNT_RDONLY) { 47755725Speter args.fspec = 0; 47855725Speter args.export.ex_flags = 0; 47955725Speter args.export.ex_root = 0; 48074556Smckusick ret = mount("ufs", mntp->f_mntonname, 48174556Smckusick mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 48255725Speter if (ret == 0) 48355725Speter return (0); 48455725Speter pwarn("mount reload of '%s' failed: %s\n\n", 48574556Smckusick mntp->f_mntonname, strerror(errno)); 48655725Speter } 48741474Sjulian if (!fsmodified) 48841474Sjulian return (0); 4891558Srgrimes if (!preen) 4901558Srgrimes printf("\n***** REBOOT NOW *****\n"); 4911558Srgrimes sync(); 4921558Srgrimes return (4); 4931558Srgrimes } 4941558Srgrimes return (0); 4951558Srgrimes} 49655275Speter 49755275Speter/* 49875927Smckusick * Get the mount point information for name. 49955275Speter */ 50055275Speterstatic struct statfs * 50192839Simpgetmntpt(const char *name) 50255275Speter{ 50355725Speter struct stat devstat, mntdevstat; 50455725Speter char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 505100935Sphk char *ddevname; 50675927Smckusick struct statfs *mntbuf, *statfsp; 50775927Smckusick int i, mntsize, isdev; 50855275Speter 50975927Smckusick if (stat(name, &devstat) != 0) 51055275Speter return (NULL); 51175927Smckusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 51275927Smckusick isdev = 1; 51375927Smckusick else 51475927Smckusick isdev = 0; 51555275Speter mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 51655275Speter for (i = 0; i < mntsize; i++) { 51775927Smckusick statfsp = &mntbuf[i]; 518100935Sphk ddevname = statfsp->f_mntfromname; 519100935Sphk if (*ddevname != '/') { 52055725Speter strcpy(device, _PATH_DEV); 521100935Sphk strcat(device, ddevname); 52275927Smckusick strcpy(statfsp->f_mntfromname, device); 52355725Speter } 52475927Smckusick if (isdev == 0) { 52575927Smckusick if (strcmp(name, statfsp->f_mntonname)) 52675927Smckusick continue; 52775927Smckusick return (statfsp); 52875927Smckusick } 529100935Sphk if (stat(ddevname, &mntdevstat) == 0 && 53055725Speter mntdevstat.st_rdev == devstat.st_rdev) 53175927Smckusick return (statfsp); 53255275Speter } 53375927Smckusick statfsp = NULL; 53475927Smckusick return (statfsp); 53555275Speter} 53666861Sadrian 53766861Sadrianstatic void 53892839Simpusage(void) 53966861Sadrian{ 54066861Sadrian (void) fprintf(stderr, 54195258Sdes "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 542102231Strhodes "file system ...\n", 54393103Smarkm getprogname()); 54466861Sadrian exit(1); 54566861Sadrian} 546