main.c revision 98542
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 341558Srgrimes#ifndef lint 357585Sbdestatic const char copyright[] = 361558Srgrimes"@(#) Copyright (c) 1980, 1986, 1993\n\ 371558Srgrimes The Regents of the University of California. All rights reserved.\n"; 381558Srgrimes#endif /* not lint */ 391558Srgrimes 401558Srgrimes#ifndef lint 4141477Sjulian#if 0 4241477Sjulianstatic char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 4341477Sjulian#endif 441558Srgrimes#endif /* not lint */ 451558Srgrimes 4693103Smarkm#include <sys/cdefs.h> 4793103Smarkm__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 98542 2002-06-21 06:18:05Z mckusick $"); 4893103Smarkm 491558Srgrimes#include <sys/param.h> 5055275Speter#include <sys/stat.h> 5175557Smckusick#include <sys/file.h> 521558Srgrimes#include <sys/time.h> 531558Srgrimes#include <sys/mount.h> 5440918Smjacob#include <sys/resource.h> 5586514Siedowse#include <sys/sysctl.h> 5698542Smckusick#include <sys/disklabel.h> 5723675Speter 581558Srgrimes#include <ufs/ufs/dinode.h> 5923675Speter#include <ufs/ufs/ufsmount.h> 601558Srgrimes#include <ufs/ffs/fs.h> 6123675Speter 6223675Speter#include <err.h> 6355725Speter#include <errno.h> 641558Srgrimes#include <fstab.h> 6555725Speter#include <paths.h> 6686514Siedowse#include <string.h> 6723675Speter 681558Srgrimes#include "fsck.h" 691558Srgrimes 7092839Simpstatic void usage(void) __dead2; 7192839Simpstatic int argtoi(int flag, char *req, char *str, int base); 7292839Simpstatic int checkfilesys(char *filesys); 7392839Simpstatic struct statfs *getmntpt(const char *); 7423675Speter 757585Sbdeint 7692839Simpmain(int argc, char *argv[]) 771558Srgrimes{ 781558Srgrimes int ch; 7941474Sjulian struct rlimit rlimit; 8066861Sadrian int ret = 0; 811558Srgrimes 821558Srgrimes sync(); 8366861Sadrian skipclean = 1; 8475927Smckusick while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 851558Srgrimes switch (ch) { 861558Srgrimes case 'b': 8766861Sadrian skipclean = 0; 881558Srgrimes bflag = argtoi('b', "number", optarg, 10); 891558Srgrimes printf("Alternate super block location: %d\n", bflag); 901558Srgrimes break; 911558Srgrimes 9274556Smckusick case 'B': 9374556Smckusick bkgrdflag = 1; 9474556Smckusick break; 9574556Smckusick 961558Srgrimes case 'c': 9766861Sadrian skipclean = 0; 981558Srgrimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 9998542Smckusick if (cvtlevel < 3) 10098542Smckusick errx(EEXIT, "cannot do level %d conversion", 10198542Smckusick cvtlevel); 1021558Srgrimes break; 1038871Srgrimes 1041558Srgrimes case 'd': 1051558Srgrimes debug++; 1061558Srgrimes break; 1071558Srgrimes 1082153Sdg case 'f': 10966861Sadrian skipclean = 0; 1102153Sdg break; 1112153Sdg 11275927Smckusick case 'F': 11375927Smckusick bkgrdcheck = 1; 11475927Smckusick break; 11575927Smckusick 1161558Srgrimes case 'm': 1171558Srgrimes lfmode = argtoi('m', "mode", optarg, 8); 1181558Srgrimes if (lfmode &~ 07777) 11923675Speter errx(EEXIT, "bad mode to -m: %o", lfmode); 1201558Srgrimes printf("** lost+found creation mode %o\n", lfmode); 1211558Srgrimes break; 1221558Srgrimes 1231558Srgrimes case 'n': 1241558Srgrimes nflag++; 1251558Srgrimes yflag = 0; 1261558Srgrimes break; 1271558Srgrimes 12866861Sadrian case 'p': 12966861Sadrian preen++; 13066861Sadrian break; 13166861Sadrian 1321558Srgrimes case 'y': 1331558Srgrimes yflag++; 1341558Srgrimes nflag = 0; 1351558Srgrimes break; 1361558Srgrimes 1371558Srgrimes default: 13866861Sadrian usage(); 1391558Srgrimes } 1401558Srgrimes } 1411558Srgrimes argc -= optind; 1421558Srgrimes argv += optind; 14366861Sadrian 14466861Sadrian if (!argc) 14566861Sadrian usage(); 14666861Sadrian 1471558Srgrimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1481558Srgrimes (void)signal(SIGINT, catch); 1491558Srgrimes if (preen) 1501558Srgrimes (void)signal(SIGQUIT, catchquit); 15170050Siedowse signal(SIGINFO, infohandler); 15241474Sjulian /* 15341474Sjulian * Push up our allowed memory limit so we can cope 15441474Sjulian * with huge filesystems. 15541474Sjulian */ 15641474Sjulian if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 15741474Sjulian rlimit.rlim_cur = rlimit.rlim_max; 15841474Sjulian (void)setrlimit(RLIMIT_DATA, &rlimit); 15941474Sjulian } 16066861Sadrian while (argc-- > 0) 16186514Siedowse (void)checkfilesys(*argv++); 16241474Sjulian 1631558Srgrimes if (returntosingle) 16466861Sadrian ret = 2; 1651558Srgrimes exit(ret); 1661558Srgrimes} 1671558Srgrimes 16823675Speterstatic int 16992839Simpargtoi(int flag, char *req, char *str, int base) 1701558Srgrimes{ 1711558Srgrimes char *cp; 1721558Srgrimes int ret; 1731558Srgrimes 1741558Srgrimes ret = (int)strtol(str, &cp, base); 1751558Srgrimes if (cp == str || *cp) 17623675Speter errx(EEXIT, "-%c flag requires a %s", flag, req); 1771558Srgrimes return (ret); 1781558Srgrimes} 1791558Srgrimes 1801558Srgrimes/* 1811558Srgrimes * Check the specified filesystem. 1821558Srgrimes */ 1831558Srgrimes/* ARGSUSED */ 18423675Speterstatic int 18592839Simpcheckfilesys(char *filesys) 1861558Srgrimes{ 18798542Smckusick ufs2_daddr_t n_ffree, n_bfree; 18874556Smckusick struct ufs_args args; 1891558Srgrimes struct dups *dp; 19074556Smckusick struct statfs *mntp; 1911558Srgrimes struct zlncnt *zlnp; 19298542Smckusick ufs2_daddr_t blks; 19375927Smckusick int cylno, size; 19498542Smckusick ino_t files; 1951558Srgrimes 1961558Srgrimes cdevname = filesys; 1971558Srgrimes if (debug && preen) 1981558Srgrimes pwarn("starting\n"); 19975927Smckusick /* 20075927Smckusick * Make best effort to get the disk name. Check first to see 20175927Smckusick * if it is listed among the mounted filesystems. Failing that 20275927Smckusick * check to see if it is listed in /etc/fstab. 20375927Smckusick */ 20475927Smckusick mntp = getmntpt(filesys); 20575927Smckusick if (mntp != NULL) 20675927Smckusick filesys = mntp->f_mntfromname; 20775927Smckusick else 20875927Smckusick filesys = blockcheck(filesys); 20975927Smckusick /* 21075927Smckusick * If -F flag specified, check to see whether a background check 21175927Smckusick * is possible and needed. If possible and needed, exit with 21275927Smckusick * status zero. Otherwise exit with status non-zero. A non-zero 21375927Smckusick * exit status will cause a foreground check to be run. 21475927Smckusick */ 21575557Smckusick sblock_init(); 21675927Smckusick if (bkgrdcheck) { 21775927Smckusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 21875927Smckusick exit(3); /* Cannot read superblock */ 21975927Smckusick close(fsreadfd); 22075927Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) 22175927Smckusick exit(4); /* Earlier background failed */ 22275927Smckusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 22375927Smckusick exit(5); /* Not running soft updates */ 22475927Smckusick size = MIBSIZE; 22575927Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 22675927Smckusick exit(6); /* Lacks kernel support */ 22775927Smckusick if ((mntp == NULL && sblock.fs_clean == 1) || 22875927Smckusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 22975927Smckusick exit(7); /* Filesystem clean, report it now */ 23075927Smckusick exit(0); 23175927Smckusick } 23274556Smckusick /* 23374556Smckusick * If we are to do a background check: 23474556Smckusick * Get the mount point information of the filesystem 23574556Smckusick * create snapshot file 23674556Smckusick * return created snapshot file 23774556Smckusick * if not found, clear bkgrdflag and proceed with normal fsck 23874556Smckusick */ 23974556Smckusick if (bkgrdflag) { 24074556Smckusick if (mntp == NULL) { 24174556Smckusick bkgrdflag = 0; 24275557Smckusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 24374556Smckusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 24474556Smckusick bkgrdflag = 0; 24575557Smckusick pfatal("NOT USING SOFT UPDATES, %s\n", 24675557Smckusick "CANNOT RUN IN BACKGROUND"); 24774556Smckusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 24874556Smckusick bkgrdflag = 0; 24975557Smckusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 25075557Smckusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 25175557Smckusick if (readsb(0) != 0) { 25275557Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) { 25375557Smckusick bkgrdflag = 0; 25475557Smckusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 25575557Smckusick "CANNOT RUN IN BACKGROUND\n"); 25675557Smckusick } 25775557Smckusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 25875557Smckusick skipclean && preen) { 25975557Smckusick /* 26075557Smckusick * filesystem is clean; 26175557Smckusick * skip snapshot and report it clean 26275557Smckusick */ 26375557Smckusick pwarn("FILESYSTEM CLEAN; %s\n", 26475557Smckusick "SKIPPING CHECKS"); 26575557Smckusick goto clean; 26675557Smckusick } 26775557Smckusick } 26875557Smckusick close(fsreadfd); 26975557Smckusick } 27075557Smckusick if (bkgrdflag) { 27174556Smckusick snprintf(snapname, sizeof snapname, "%s/.fsck_snapshot", 27274556Smckusick mntp->f_mntonname); 27374556Smckusick args.fspec = snapname; 27474556Smckusick while (mount("ffs", mntp->f_mntonname, 27574556Smckusick mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 27674556Smckusick &args) < 0) { 27774556Smckusick if (errno == EEXIST && unlink(snapname) == 0) 27874556Smckusick continue; 27974556Smckusick bkgrdflag = 0; 28075557Smckusick pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 28174556Smckusick snapname, strerror(errno)); 28274556Smckusick break; 28374556Smckusick } 28474556Smckusick if (bkgrdflag != 0) 28574556Smckusick filesys = snapname; 28674556Smckusick } 28774556Smckusick } 28874556Smckusick 28923675Speter switch (setup(filesys)) { 29023675Speter case 0: 2911558Srgrimes if (preen) 2921558Srgrimes pfatal("CAN'T CHECK FILE SYSTEM."); 29341477Sjulian return (0); 29423675Speter case -1: 29575557Smckusick clean: 29686514Siedowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 29786514Siedowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 29841477Sjulian printf("(%d frags, %d blocks, %.1f%% fragmentation)\n", 29941477Sjulian sblock.fs_cstotal.cs_nffree, sblock.fs_cstotal.cs_nbfree, 30041477Sjulian sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 30131904Sbde return (0); 3022153Sdg } 30355275Speter 30455275Speter /* 30534266Sjulian * Cleared if any questions answered no. Used to decide if 30634266Sjulian * the superblock should be marked clean. 30734266Sjulian */ 30834266Sjulian resolved = 1; 30934266Sjulian /* 3101558Srgrimes * 1: scan inodes tallying blocks used 3111558Srgrimes */ 3121558Srgrimes if (preen == 0) { 3131558Srgrimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 31474556Smckusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 31596707Strhodes printf("** Root filesystem\n"); 3161558Srgrimes printf("** Phase 1 - Check Blocks and Sizes\n"); 3171558Srgrimes } 3181558Srgrimes pass1(); 3191558Srgrimes 3201558Srgrimes /* 3211558Srgrimes * 1b: locate first references to duplicates, if any 3221558Srgrimes */ 3231558Srgrimes if (duplist) { 32434266Sjulian if (preen || usedsoftdep) 3251558Srgrimes pfatal("INTERNAL ERROR: dups with -p"); 3261558Srgrimes printf("** Phase 1b - Rescan For More DUPS\n"); 3271558Srgrimes pass1b(); 3281558Srgrimes } 3291558Srgrimes 3301558Srgrimes /* 3311558Srgrimes * 2: traverse directories from root to mark all connected directories 3321558Srgrimes */ 3331558Srgrimes if (preen == 0) 3341558Srgrimes printf("** Phase 2 - Check Pathnames\n"); 3351558Srgrimes pass2(); 3361558Srgrimes 3371558Srgrimes /* 3381558Srgrimes * 3: scan inodes looking for disconnected directories 3391558Srgrimes */ 3401558Srgrimes if (preen == 0) 3411558Srgrimes printf("** Phase 3 - Check Connectivity\n"); 3421558Srgrimes pass3(); 3431558Srgrimes 3441558Srgrimes /* 3451558Srgrimes * 4: scan inodes looking for disconnected files; check reference counts 3461558Srgrimes */ 3471558Srgrimes if (preen == 0) 3481558Srgrimes printf("** Phase 4 - Check Reference Counts\n"); 3491558Srgrimes pass4(); 3501558Srgrimes 3511558Srgrimes /* 3521558Srgrimes * 5: check and repair resource counts in cylinder groups 3531558Srgrimes */ 3541558Srgrimes if (preen == 0) 3551558Srgrimes printf("** Phase 5 - Check Cyl groups\n"); 3561558Srgrimes pass5(); 3571558Srgrimes 3581558Srgrimes /* 3591558Srgrimes * print out summary statistics 3601558Srgrimes */ 3611558Srgrimes n_ffree = sblock.fs_cstotal.cs_nffree; 3621558Srgrimes n_bfree = sblock.fs_cstotal.cs_nbfree; 36374556Smckusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 36474556Smckusick blks = n_blks + 36574556Smckusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 36674556Smckusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 36774556Smckusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 36874556Smckusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 36974556Smckusick if (bkgrdflag && (files > 0 || blks > 0)) { 37074556Smckusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 37186514Siedowse pwarn("Reclaimed: %ld directories, %ld files, %d fragments\n", 37286514Siedowse countdirs, (long)files - countdirs, blks); 37374556Smckusick } 37498542Smckusick pwarn("%ld files, %ld used, %qu free ", 37598542Smckusick (long)n_files, (long)n_blks, n_ffree + sblock.fs_frag * n_bfree); 37698542Smckusick printf("(%qu frags, %qu blocks, %.1f%% fragmentation)\n", 37731904Sbde n_ffree, n_bfree, n_ffree * 100.0 / sblock.fs_dsize); 3781558Srgrimes if (debug) { 37974556Smckusick if (files < 0) 38074556Smckusick printf("%d inodes missing\n", -files); 38174556Smckusick if (blks < 0) 38274556Smckusick printf("%d blocks missing\n", -blks); 3831558Srgrimes if (duplist != NULL) { 3841558Srgrimes printf("The following duplicate blocks remain:"); 3851558Srgrimes for (dp = duplist; dp; dp = dp->next) 38631904Sbde printf(" %d,", dp->dup); 3871558Srgrimes printf("\n"); 3881558Srgrimes } 3891558Srgrimes if (zlnhead != NULL) { 3901558Srgrimes printf("The following zero link count inodes remain:"); 3911558Srgrimes for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 39231904Sbde printf(" %u,", zlnp->zlncnt); 3931558Srgrimes printf("\n"); 3941558Srgrimes } 3951558Srgrimes } 3961558Srgrimes zlnhead = (struct zlncnt *)0; 3971558Srgrimes duplist = (struct dups *)0; 3981558Srgrimes muldup = (struct dups *)0; 3991558Srgrimes inocleanup(); 4002179Sdg if (fsmodified) { 40141474Sjulian sblock.fs_time = time(NULL); 4021558Srgrimes sbdirty(); 4031558Srgrimes } 4041558Srgrimes if (cvtlevel && sblk.b_dirty) { 4058871Srgrimes /* 4061558Srgrimes * Write out the duplicate super blocks 4071558Srgrimes */ 4081558Srgrimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 4091558Srgrimes bwrite(fswritefd, (char *)&sblock, 41098542Smckusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 41198542Smckusick SBLOCKSIZE); 4121558Srgrimes } 41334266Sjulian if (rerun) 41434266Sjulian resolved = 0; 41555275Speter 41655725Speter /* 41755773Speter * Check to see if the filesystem is mounted read-write. 41855725Speter */ 41974556Smckusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 42055275Speter resolved = 0; 42134266Sjulian ckfini(resolved); 42241474Sjulian 42341474Sjulian for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 42441474Sjulian if (inostathead[cylno].il_stat != NULL) 42541474Sjulian free((char *)inostathead[cylno].il_stat); 42641474Sjulian free((char *)inostathead); 42741474Sjulian inostathead = NULL; 42841474Sjulian if (fsmodified && !preen) 4291558Srgrimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 43018808Sguido if (rerun) 43118808Sguido printf("\n***** PLEASE RERUN FSCK *****\n"); 43274556Smckusick if (mntp != NULL) { 43323675Speter struct ufs_args args; 43423675Speter int ret; 43555725Speter /* 43655725Speter * We modified a mounted filesystem. Do a mount update on 43755725Speter * it unless it is read-write, so we can continue using it 43855725Speter * as safely as possible. 43955725Speter */ 44074556Smckusick if (mntp->f_flags & MNT_RDONLY) { 44155725Speter args.fspec = 0; 44255725Speter args.export.ex_flags = 0; 44355725Speter args.export.ex_root = 0; 44474556Smckusick ret = mount("ufs", mntp->f_mntonname, 44574556Smckusick mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 44655725Speter if (ret == 0) 44755725Speter return (0); 44855725Speter pwarn("mount reload of '%s' failed: %s\n\n", 44974556Smckusick mntp->f_mntonname, strerror(errno)); 45055725Speter } 45141474Sjulian if (!fsmodified) 45241474Sjulian return (0); 4531558Srgrimes if (!preen) 4541558Srgrimes printf("\n***** REBOOT NOW *****\n"); 4551558Srgrimes sync(); 4561558Srgrimes return (4); 4571558Srgrimes } 4581558Srgrimes return (0); 4591558Srgrimes} 46055275Speter 46155275Speter/* 46275927Smckusick * Get the mount point information for name. 46355275Speter */ 46455275Speterstatic struct statfs * 46592839Simpgetmntpt(const char *name) 46655275Speter{ 46755725Speter struct stat devstat, mntdevstat; 46855725Speter char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 46955725Speter char *devname; 47075927Smckusick struct statfs *mntbuf, *statfsp; 47175927Smckusick int i, mntsize, isdev; 47255275Speter 47375927Smckusick if (stat(name, &devstat) != 0) 47455275Speter return (NULL); 47575927Smckusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 47675927Smckusick isdev = 1; 47775927Smckusick else 47875927Smckusick isdev = 0; 47955275Speter mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 48055275Speter for (i = 0; i < mntsize; i++) { 48175927Smckusick statfsp = &mntbuf[i]; 48275927Smckusick devname = statfsp->f_mntfromname; 48355725Speter if (*devname != '/') { 48455725Speter strcpy(device, _PATH_DEV); 48555725Speter strcat(device, devname); 48675927Smckusick strcpy(statfsp->f_mntfromname, device); 48755725Speter } 48875927Smckusick if (isdev == 0) { 48975927Smckusick if (strcmp(name, statfsp->f_mntonname)) 49075927Smckusick continue; 49175927Smckusick return (statfsp); 49275927Smckusick } 49355773Speter if (stat(devname, &mntdevstat) == 0 && 49455725Speter mntdevstat.st_rdev == devstat.st_rdev) 49575927Smckusick return (statfsp); 49655275Speter } 49775927Smckusick statfsp = NULL; 49875927Smckusick return (statfsp); 49955275Speter} 50066861Sadrian 50166861Sadrianstatic void 50292839Simpusage(void) 50366861Sadrian{ 50466861Sadrian (void) fprintf(stderr, 50595258Sdes "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 50666861Sadrian "filesystem ...\n", 50793103Smarkm getprogname()); 50866861Sadrian exit(1); 50966861Sadrian} 510