18a16b7a1SPedro F. Giffuni /*- 28a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 38a16b7a1SPedro F. Giffuni * 48fae3551SRodney W. Grimes * Copyright (c) 1980, 1986, 1993 58fae3551SRodney W. Grimes * The Regents of the University of California. All rights reserved. 68fae3551SRodney W. Grimes * 78fae3551SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 88fae3551SRodney W. Grimes * modification, are permitted provided that the following conditions 98fae3551SRodney W. Grimes * are met: 108fae3551SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 118fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 128fae3551SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 138fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 148fae3551SRodney W. Grimes * documentation and/or other materials provided with the distribution. 15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 168fae3551SRodney W. Grimes * may be used to endorse or promote products derived from this software 178fae3551SRodney W. Grimes * without specific prior written permission. 188fae3551SRodney W. Grimes * 198fae3551SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 208fae3551SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 218fae3551SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 228fae3551SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 238fae3551SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 248fae3551SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 258fae3551SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 268fae3551SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 278fae3551SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 288fae3551SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 298fae3551SRodney W. Grimes * SUCH DAMAGE. 308fae3551SRodney W. Grimes */ 318fae3551SRodney W. Grimes 32c69284caSDavid E. O'Brien #if 0 338fae3551SRodney W. Grimes #ifndef lint 3431f4ab50SBruce Evans static const char copyright[] = 358fae3551SRodney W. Grimes "@(#) Copyright (c) 1980, 1986, 1993\n\ 368fae3551SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 378fae3551SRodney W. Grimes #endif /* not lint */ 388fae3551SRodney W. Grimes 398fae3551SRodney W. Grimes #ifndef lint 406b100474SJulian Elischer static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 418fae3551SRodney W. Grimes #endif /* not lint */ 42c69284caSDavid E. O'Brien #endif 438e2e167cSMark Murray #include <sys/cdefs.h> 448e2e167cSMark Murray __FBSDID("$FreeBSD$"); 458e2e167cSMark Murray 4631461aa2SKirk McKusick #define IN_RTLD /* So we pickup the P_OSREL defines */ 478fae3551SRodney W. Grimes #include <sys/param.h> 4838375c40SKirk McKusick #include <sys/file.h> 498fae3551SRodney W. Grimes #include <sys/mount.h> 5033966081SMatt Jacob #include <sys/resource.h> 517649cb00SKirk McKusick #include <sys/stat.h> 52bf58d635SIan Dowse #include <sys/sysctl.h> 5324adb851SCraig Rodrigues #include <sys/uio.h> 541c85e6a3SKirk McKusick #include <sys/disklabel.h> 55780a5c1eSPeter Wemm 568fae3551SRodney W. Grimes #include <ufs/ufs/dinode.h> 578fae3551SRodney W. Grimes #include <ufs/ffs/fs.h> 58780a5c1eSPeter Wemm 59780a5c1eSPeter Wemm #include <err.h> 60d0e1503bSPeter Wemm #include <errno.h> 618fae3551SRodney W. Grimes #include <fstab.h> 62ff76fc7fSKirk McKusick #include <grp.h> 636a5972dbSKirk McKusick #include <inttypes.h> 64f644caadSKirk McKusick #include <libufs.h> 6524adb851SCraig Rodrigues #include <mntopts.h> 66d0e1503bSPeter Wemm #include <paths.h> 6784fc0d7eSMaxime Henrion #include <stdint.h> 68bf58d635SIan Dowse #include <string.h> 697649cb00SKirk McKusick #include <time.h> 70780a5c1eSPeter Wemm 718fae3551SRodney W. Grimes #include "fsck.h" 72780a5c1eSPeter Wemm 735cc52631SKirk McKusick static int restarts; 747703a6ffSScott Long 75b70cd7eeSWarner Losh static void usage(void) __dead2; 766a5972dbSKirk McKusick static intmax_t argtoimax(int flag, const char *req, const char *str, int base); 77b70cd7eeSWarner Losh static int checkfilesys(char *filesys); 78db3f838dSPawel Jakub Dawidek static int chkdoreload(struct statfs *mntp); 79b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 808fae3551SRodney W. Grimes 8131f4ab50SBruce Evans int 82b70cd7eeSWarner Losh main(int argc, char *argv[]) 838fae3551SRodney W. Grimes { 848fae3551SRodney W. Grimes int ch; 85d33e92f9SJulian Elischer struct rlimit rlimit; 861660ae87SScott Long struct itimerval itimerval; 87469759f8SDavid Bright int fsret; 889ea6f4f0SAdrian Chadd int ret = 0; 898fae3551SRodney W. Grimes 908fae3551SRodney W. Grimes sync(); 919ea6f4f0SAdrian Chadd skipclean = 1; 92910b491eSKirk McKusick inoopt = 0; 930061238fSKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npRrSyZz")) != -1) { 948fae3551SRodney W. Grimes switch (ch) { 958fae3551SRodney W. Grimes case 'b': 969ea6f4f0SAdrian Chadd skipclean = 0; 976a5972dbSKirk McKusick bflag = argtoimax('b', "number", optarg, 10); 986a5972dbSKirk McKusick printf("Alternate super block location: %jd\n", bflag); 998fae3551SRodney W. Grimes break; 1008fae3551SRodney W. Grimes 1017578c6abSKirk McKusick case 'B': 1027578c6abSKirk McKusick bkgrdflag = 1; 1037578c6abSKirk McKusick break; 1047578c6abSKirk McKusick 1058fae3551SRodney W. Grimes case 'c': 1069ea6f4f0SAdrian Chadd skipclean = 0; 1076a5972dbSKirk McKusick cvtlevel = argtoimax('c', "conversion level", optarg, 1086a5972dbSKirk McKusick 10); 1091c85e6a3SKirk McKusick if (cvtlevel < 3) 1101c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 1111c85e6a3SKirk McKusick cvtlevel); 1128fae3551SRodney W. Grimes break; 1138fae3551SRodney W. Grimes 1148fae3551SRodney W. Grimes case 'd': 1158fae3551SRodney W. Grimes debug++; 1168fae3551SRodney W. Grimes break; 1178fae3551SRodney W. Grimes 1188d3dfc26SDag-Erling Smørgrav case 'E': 1198d3dfc26SDag-Erling Smørgrav Eflag++; 1208d3dfc26SDag-Erling Smørgrav break; 1218d3dfc26SDag-Erling Smørgrav 12241cee58cSDavid Greenman case 'f': 1239ea6f4f0SAdrian Chadd skipclean = 0; 1248fae3551SRodney W. Grimes break; 1258fae3551SRodney W. Grimes 12615fca934SKirk McKusick case 'F': 12715fca934SKirk McKusick bkgrdcheck = 1; 12815fca934SKirk McKusick break; 12915fca934SKirk McKusick 1308fae3551SRodney W. Grimes case 'm': 1316a5972dbSKirk McKusick lfmode = argtoimax('m', "mode", optarg, 8); 1328fae3551SRodney W. Grimes if (lfmode &~ 07777) 133780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1348fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1358fae3551SRodney W. Grimes break; 1368fae3551SRodney W. Grimes 1378fae3551SRodney W. Grimes case 'n': 1388fae3551SRodney W. Grimes nflag++; 1398fae3551SRodney W. Grimes yflag = 0; 1408fae3551SRodney W. Grimes break; 1418fae3551SRodney W. Grimes 1429ea6f4f0SAdrian Chadd case 'p': 1439ea6f4f0SAdrian Chadd preen++; 144111a5220SDavid E. O'Brien /*FALLTHROUGH*/ 145111a5220SDavid E. O'Brien 146111a5220SDavid E. O'Brien case 'C': 147111a5220SDavid E. O'Brien ckclean++; 1489ea6f4f0SAdrian Chadd break; 1499ea6f4f0SAdrian Chadd 1507703a6ffSScott Long case 'R': 1517703a6ffSScott Long wantrestart = 1; 1527703a6ffSScott Long break; 153910b491eSKirk McKusick case 'r': 154910b491eSKirk McKusick inoopt++; 155910b491eSKirk McKusick break; 156910b491eSKirk McKusick 157ce779f37SScott Long case 'S': 158ce779f37SScott Long surrender = 1; 159ce779f37SScott Long break; 160ce779f37SScott Long 1618fae3551SRodney W. Grimes case 'y': 1628fae3551SRodney W. Grimes yflag++; 1638fae3551SRodney W. Grimes nflag = 0; 1648fae3551SRodney W. Grimes break; 1658fae3551SRodney W. Grimes 1662b5373deSDag-Erling Smørgrav case 'Z': 1672b5373deSDag-Erling Smørgrav Zflag++; 1682b5373deSDag-Erling Smørgrav break; 1692b5373deSDag-Erling Smørgrav 1700061238fSKirk McKusick case 'z': 1710061238fSKirk McKusick zflag++; 1720061238fSKirk McKusick break; 1730061238fSKirk McKusick 1748fae3551SRodney W. Grimes default: 1759ea6f4f0SAdrian Chadd usage(); 1768fae3551SRodney W. Grimes } 1778fae3551SRodney W. Grimes } 1788fae3551SRodney W. Grimes argc -= optind; 1798fae3551SRodney W. Grimes argv += optind; 1809ea6f4f0SAdrian Chadd 1819ea6f4f0SAdrian Chadd if (!argc) 1829ea6f4f0SAdrian Chadd usage(); 1839ea6f4f0SAdrian Chadd 1848fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1858fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 186111a5220SDavid E. O'Brien if (ckclean) 1878fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1886db798caSIan Dowse signal(SIGINFO, infohandler); 1891660ae87SScott Long if (bkgrdflag) { 1901660ae87SScott Long signal(SIGALRM, alarmhandler); 1911660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1921660ae87SScott Long itimerval.it_interval.tv_usec = 0; 1931660ae87SScott Long itimerval.it_value.tv_sec = 5; 1941660ae87SScott Long itimerval.it_value.tv_usec = 0; 1951660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 1961660ae87SScott Long } 197d33e92f9SJulian Elischer /* 198d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 199d33e92f9SJulian Elischer * with huge file systems. 200d33e92f9SJulian Elischer */ 201d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 202d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 203d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 204d33e92f9SJulian Elischer } 2057703a6ffSScott Long while (argc > 0) { 206469759f8SDavid Bright if ((fsret = checkfilesys(*argv)) == ERESTART) 2077703a6ffSScott Long continue; 208469759f8SDavid Bright ret |= fsret; 2097703a6ffSScott Long argc--; 2107703a6ffSScott Long argv++; 2117703a6ffSScott Long } 212d33e92f9SJulian Elischer 2138fae3551SRodney W. Grimes if (returntosingle) 2149ea6f4f0SAdrian Chadd ret = 2; 2158fae3551SRodney W. Grimes exit(ret); 2168fae3551SRodney W. Grimes } 2178fae3551SRodney W. Grimes 2186a5972dbSKirk McKusick static intmax_t 2196a5972dbSKirk McKusick argtoimax(int flag, const char *req, const char *str, int base) 2208fae3551SRodney W. Grimes { 2218fae3551SRodney W. Grimes char *cp; 2226a5972dbSKirk McKusick intmax_t ret; 2238fae3551SRodney W. Grimes 2246a5972dbSKirk McKusick ret = strtoimax(str, &cp, base); 2258fae3551SRodney W. Grimes if (cp == str || *cp) 226780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 2278fae3551SRodney W. Grimes return (ret); 2288fae3551SRodney W. Grimes } 2298fae3551SRodney W. Grimes 2308fae3551SRodney W. Grimes /* 2318fae3551SRodney W. Grimes * Check the specified file system. 2328fae3551SRodney W. Grimes */ 2338fae3551SRodney W. Grimes /* ARGSUSED */ 234780a5c1eSPeter Wemm static int 235b70cd7eeSWarner Losh checkfilesys(char *filesys) 2368fae3551SRodney W. Grimes { 2371c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 2388fae3551SRodney W. Grimes struct dups *dp; 2397578c6abSKirk McKusick struct statfs *mntp; 240ff76fc7fSKirk McKusick struct stat snapdir; 241ff76fc7fSKirk McKusick struct group *grp; 24224adb851SCraig Rodrigues struct iovec *iov; 24324adb851SCraig Rodrigues char errmsg[255]; 24491882068SKirk McKusick int ofsmodified; 24524adb851SCraig Rodrigues int iovlen; 246db3f838dSPawel Jakub Dawidek int cylno; 247a1c9ec3cSMatthew D Fleming intmax_t blks, files; 24884fc0d7eSMaxime Henrion size_t size; 2498fae3551SRodney W. Grimes 25024adb851SCraig Rodrigues iov = NULL; 25124adb851SCraig Rodrigues iovlen = 0; 25224adb851SCraig Rodrigues errmsg[0] = '\0'; 2537703a6ffSScott Long fsutilinit(); 2547703a6ffSScott Long fsckinit(); 25524adb851SCraig Rodrigues 2568fae3551SRodney W. Grimes cdevname = filesys; 257111a5220SDavid E. O'Brien if (debug && ckclean) 2588fae3551SRodney W. Grimes pwarn("starting\n"); 25915fca934SKirk McKusick /* 26015fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 26115fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 26215fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 26315fca934SKirk McKusick */ 26415fca934SKirk McKusick mntp = getmntpt(filesys); 26515fca934SKirk McKusick if (mntp != NULL) 26615fca934SKirk McKusick filesys = mntp->f_mntfromname; 26715fca934SKirk McKusick else 26815fca934SKirk McKusick filesys = blockcheck(filesys); 26915fca934SKirk McKusick /* 27015fca934SKirk McKusick * If -F flag specified, check to see whether a background check 27115fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 27215fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 27315fca934SKirk McKusick * exit status will cause a foreground check to be run. 27415fca934SKirk McKusick */ 27538375c40SKirk McKusick sblock_init(); 27615fca934SKirk McKusick if (bkgrdcheck) { 27715fca934SKirk McKusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 27815fca934SKirk McKusick exit(3); /* Cannot read superblock */ 27915fca934SKirk McKusick close(fsreadfd); 280113db2ddSJeff Roberson /* Earlier background failed or journaled */ 281113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 282113db2ddSJeff Roberson exit(4); 28315fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 28415fca934SKirk McKusick exit(5); /* Not running soft updates */ 28515fca934SKirk McKusick size = MIBSIZE; 28615fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 28715fca934SKirk McKusick exit(6); /* Lacks kernel support */ 28815fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 28915fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 29015fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 29115fca934SKirk McKusick exit(0); 29215fca934SKirk McKusick } 293111a5220SDavid E. O'Brien if (ckclean && skipclean) { 294aef8d244SPawel Jakub Dawidek /* 295aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 296aef8d244SPawel Jakub Dawidek */ 297aef8d244SPawel Jakub Dawidek if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 298aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 2995cc52631SKirk McKusick if (nflag || (fswritefd = open(filesys, O_WRONLY)) < 0) { 3005cc52631SKirk McKusick fswritefd = -1; 3015cc52631SKirk McKusick if (preen) 3025cc52631SKirk McKusick pfatal("NO WRITE ACCESS"); 3035cc52631SKirk McKusick printf(" (NO WRITE)"); 3045cc52631SKirk McKusick } 305aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 306aef8d244SPawel Jakub Dawidek //printf("GJournaled file system detected on %s.\n", 307aef8d244SPawel Jakub Dawidek // filesys); 308aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 309aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 310aef8d244SPawel Jakub Dawidek exit(0); 311aef8d244SPawel Jakub Dawidek } 312aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 313aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 314db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) == 0) 315aef8d244SPawel Jakub Dawidek exit(0); 316db3f838dSPawel Jakub Dawidek exit(4); 317aef8d244SPawel Jakub Dawidek } else { 318bd3c72d0SDavid E. O'Brien pfatal( 319bd3c72d0SDavid E. O'Brien "UNEXPECTED INCONSISTENCY, CANNOT RUN FAST FSCK\n"); 3205cc52631SKirk McKusick close(fsreadfd); 3215cc52631SKirk McKusick close(fswritefd); 322aef8d244SPawel Jakub Dawidek } 323aef8d244SPawel Jakub Dawidek } 324aef8d244SPawel Jakub Dawidek } 3257578c6abSKirk McKusick /* 3267578c6abSKirk McKusick * If we are to do a background check: 3277578c6abSKirk McKusick * Get the mount point information of the file system 3287578c6abSKirk McKusick * create snapshot file 3297578c6abSKirk McKusick * return created snapshot file 3307578c6abSKirk McKusick * if not found, clear bkgrdflag and proceed with normal fsck 3317578c6abSKirk McKusick */ 3327578c6abSKirk McKusick if (bkgrdflag) { 3337578c6abSKirk McKusick if (mntp == NULL) { 3347578c6abSKirk McKusick bkgrdflag = 0; 33538375c40SKirk McKusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 3367578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 3377578c6abSKirk McKusick bkgrdflag = 0; 338bd3c72d0SDavid E. O'Brien pfatal( 339bd3c72d0SDavid E. O'Brien "NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n"); 3407578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 3417578c6abSKirk McKusick bkgrdflag = 0; 34238375c40SKirk McKusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 34338375c40SKirk McKusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 34438375c40SKirk McKusick if (readsb(0) != 0) { 345113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) { 34638375c40SKirk McKusick bkgrdflag = 0; 347bd3c72d0SDavid E. O'Brien pfatal( 348bd3c72d0SDavid E. O'Brien "UNEXPECTED INCONSISTENCY, CANNOT RUN IN BACKGROUND\n"); 34938375c40SKirk McKusick } 35038375c40SKirk McKusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 351111a5220SDavid E. O'Brien skipclean && ckclean) { 35238375c40SKirk McKusick /* 35338375c40SKirk McKusick * file system is clean; 35438375c40SKirk McKusick * skip snapshot and report it clean 35538375c40SKirk McKusick */ 356bd3c72d0SDavid E. O'Brien pwarn( 357bd3c72d0SDavid E. O'Brien "FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 35838375c40SKirk McKusick goto clean; 35938375c40SKirk McKusick } 36038375c40SKirk McKusick } 36138375c40SKirk McKusick close(fsreadfd); 36238375c40SKirk McKusick } 36338375c40SKirk McKusick if (bkgrdflag) { 364ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 3657578c6abSKirk McKusick mntp->f_mntonname); 366ff76fc7fSKirk McKusick if (stat(snapname, &snapdir) < 0) { 367ff76fc7fSKirk McKusick if (errno != ENOENT) { 368ff76fc7fSKirk McKusick bkgrdflag = 0; 369bd3c72d0SDavid E. O'Brien pfatal( 370bd3c72d0SDavid E. O'Brien "CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n", 371bd3c72d0SDavid E. O'Brien snapname, strerror(errno)); 3727d5e6562SPedro F. Giffuni } else if ((grp = getgrnam("operator")) == NULL || 373ff76fc7fSKirk McKusick mkdir(snapname, 0770) < 0 || 374ff76fc7fSKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 375ff76fc7fSKirk McKusick chmod(snapname, 0770) < 0) { 376ff76fc7fSKirk McKusick bkgrdflag = 0; 377bd3c72d0SDavid E. O'Brien pfatal( 378bd3c72d0SDavid E. O'Brien "CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n", 379bd3c72d0SDavid E. O'Brien snapname, strerror(errno)); 380ff76fc7fSKirk McKusick } 381ff76fc7fSKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 382ff76fc7fSKirk McKusick bkgrdflag = 0; 383bd3c72d0SDavid E. O'Brien pfatal( 384bd3c72d0SDavid E. O'Brien "%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n", 385bd3c72d0SDavid E. O'Brien snapname); 386ff76fc7fSKirk McKusick } 387ff76fc7fSKirk McKusick } 388ff76fc7fSKirk McKusick if (bkgrdflag) { 389ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, 390ff76fc7fSKirk McKusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 39124adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 39224adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", snapname, 39324adb851SCraig Rodrigues (size_t)-1); 39424adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 39524adb851SCraig Rodrigues (size_t)-1); 39624adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 39724adb851SCraig Rodrigues sizeof(errmsg)); 3986910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 3996910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 40024adb851SCraig Rodrigues 401defc9d50SDavid E. O'Brien while (nmount(iov, iovlen, mntp->f_flags) < 0) { 4027578c6abSKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 4037578c6abSKirk McKusick continue; 4047578c6abSKirk McKusick bkgrdflag = 0; 40524adb851SCraig Rodrigues pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 40624adb851SCraig Rodrigues snapname, strerror(errno), errmsg); 4077578c6abSKirk McKusick break; 4087578c6abSKirk McKusick } 4097578c6abSKirk McKusick if (bkgrdflag != 0) 4107578c6abSKirk McKusick filesys = snapname; 4117578c6abSKirk McKusick } 4127578c6abSKirk McKusick } 4137578c6abSKirk McKusick 414780a5c1eSPeter Wemm switch (setup(filesys)) { 415780a5c1eSPeter Wemm case 0: 4168fae3551SRodney W. Grimes if (preen) 4178fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 418e8337044SChuck Silvers return (EEXIT); 419780a5c1eSPeter Wemm case -1: 42038375c40SKirk McKusick clean: 421bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 422bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 423a1c9ec3cSMatthew D Fleming printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n", 424a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nffree, 425a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nbfree, 4266b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 42741cee58cSDavid Greenman return (0); 42841cee58cSDavid Greenman } 429113db2ddSJeff Roberson /* 430113db2ddSJeff Roberson * Determine if we can and should do journal recovery. 431113db2ddSJeff Roberson */ 432edad6026SXin LI if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 433edad6026SXin LI if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 4345cc52631SKirk McKusick sujrecovery = 1; 435113db2ddSJeff Roberson if (suj_check(filesys) == 0) { 436edad6026SXin LI printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 437113db2ddSJeff Roberson if (chkdoreload(mntp) == 0) 438113db2ddSJeff Roberson exit(0); 439113db2ddSJeff Roberson exit(4); 440113db2ddSJeff Roberson } 4415cc52631SKirk McKusick sujrecovery = 0; 442edad6026SXin LI printf("** Skipping journal, falling through to full fsck\n\n"); 443edad6026SXin LI } 444113db2ddSJeff Roberson /* 445113db2ddSJeff Roberson * Write the superblock so we don't try to recover the 44691882068SKirk McKusick * journal on another pass. If this is the only change 44791882068SKirk McKusick * to the filesystem, we do not want it to be called 44891882068SKirk McKusick * out as modified. 449113db2ddSJeff Roberson */ 450113db2ddSJeff Roberson sblock.fs_mtime = time(NULL); 451113db2ddSJeff Roberson sbdirty(); 45291882068SKirk McKusick ofsmodified = fsmodified; 45391882068SKirk McKusick flush(fswritefd, &sblk); 45491882068SKirk McKusick fsmodified = ofsmodified; 455113db2ddSJeff Roberson } 45631461aa2SKirk McKusick /* 45731461aa2SKirk McKusick * If the filesystem was run on an old kernel that did not 45831461aa2SKirk McKusick * support check hashes, clear the check-hash flags so that 45931461aa2SKirk McKusick * we do not try to verify them. 46031461aa2SKirk McKusick */ 46131461aa2SKirk McKusick if ((sblock.fs_flags & FS_METACKHASH) == 0) 46231461aa2SKirk McKusick sblock.fs_metackhash = 0; 46331461aa2SKirk McKusick /* 46431461aa2SKirk McKusick * If we are running on a kernel that can provide check hashes 46531461aa2SKirk McKusick * that are not yet enabled for the filesystem and we are 46631461aa2SKirk McKusick * running manually without the -y flag, offer to add any 46731461aa2SKirk McKusick * supported check hashes that are not already enabled. 46831461aa2SKirk McKusick */ 46931461aa2SKirk McKusick ckhashadd = 0; 47031461aa2SKirk McKusick if (preen == 0 && yflag == 0 && sblock.fs_magic != FS_UFS1_MAGIC && 47131461aa2SKirk McKusick fswritefd != -1 && getosreldate() >= P_OSREL_CK_CYLGRP) { 47231461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_CYLGRP) == 0 && 4739fc5d538SKirk McKusick reply("ADD CYLINDER GROUP CHECK-HASH PROTECTION") != 0) { 47431461aa2SKirk McKusick ckhashadd |= CK_CYLGRP; 4759fc5d538SKirk McKusick sblock.fs_metackhash |= CK_CYLGRP; 4769fc5d538SKirk McKusick } 47731461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_SUPERBLOCK) == 0 && 47831461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_SUPERBLOCK && 479ec888383SKirk McKusick reply("ADD SUPERBLOCK CHECK-HASH PROTECTION") != 0) { 4809fc5d538SKirk McKusick ckhashadd |= CK_SUPERBLOCK; 481ec888383SKirk McKusick sblock.fs_metackhash |= CK_SUPERBLOCK; 482ec888383SKirk McKusick } 48331461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INODE) == 0 && 48431461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INODE && 4859fc5d538SKirk McKusick reply("ADD INODE CHECK-HASH PROTECTION") != 0) { 48631461aa2SKirk McKusick ckhashadd |= CK_INODE; 4879fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INODE; 4889fc5d538SKirk McKusick } 4898f829a5cSKirk McKusick #ifdef notyet 49031461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INDIR) == 0 && 49131461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INDIR && 4929fc5d538SKirk McKusick reply("ADD INDIRECT BLOCK CHECK-HASH PROTECTION") != 0) { 49331461aa2SKirk McKusick ckhashadd |= CK_INDIR; 4949fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INDIR; 4959fc5d538SKirk McKusick } 49631461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_DIR) == 0 && 49731461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_DIR && 4989fc5d538SKirk McKusick reply("ADD DIRECTORY CHECK-HASH PROTECTION") != 0) { 49931461aa2SKirk McKusick ckhashadd |= CK_DIR; 5009fc5d538SKirk McKusick sblock.fs_metackhash |= CK_DIR; 5019fc5d538SKirk McKusick } 50231461aa2SKirk McKusick #endif /* notyet */ 5039fc5d538SKirk McKusick if (ckhashadd != 0) { 50431461aa2SKirk McKusick sblock.fs_flags |= FS_METACKHASH; 5059fc5d538SKirk McKusick sbdirty(); 5069fc5d538SKirk McKusick } 50731461aa2SKirk McKusick } 5088fae3551SRodney W. Grimes /* 509b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 510b1897c19SJulian Elischer * the superblock should be marked clean. 511b1897c19SJulian Elischer */ 512b1897c19SJulian Elischer resolved = 1; 513b1897c19SJulian Elischer /* 5148fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 5158fae3551SRodney W. Grimes */ 5168fae3551SRodney W. Grimes if (preen == 0) { 5178fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 5187578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 5198fae3551SRodney W. Grimes printf("** Root file system\n"); 5208fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 5218fae3551SRodney W. Grimes } 522ed75b5a1SKirk McKusick clock_gettime(CLOCK_REALTIME_PRECISE, &startprog); 5238fae3551SRodney W. Grimes pass1(); 524ed75b5a1SKirk McKusick IOstats("Pass1"); 5258fae3551SRodney W. Grimes 5268fae3551SRodney W. Grimes /* 5278fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 5288fae3551SRodney W. Grimes */ 5298fae3551SRodney W. Grimes if (duplist) { 530b1897c19SJulian Elischer if (preen || usedsoftdep) 53121be55ccSKirk McKusick pfatal("INTERNAL ERROR: dups with %s%s%s", 53221be55ccSKirk McKusick preen ? "-p" : "", 53321be55ccSKirk McKusick (preen && usedsoftdep) ? " and " : "", 53421be55ccSKirk McKusick usedsoftdep ? "softupdates" : ""); 5358fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 5368fae3551SRodney W. Grimes pass1b(); 537ed75b5a1SKirk McKusick IOstats("Pass1b"); 5388fae3551SRodney W. Grimes } 5398fae3551SRodney W. Grimes 5408fae3551SRodney W. Grimes /* 5418fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 5428fae3551SRodney W. Grimes */ 5438fae3551SRodney W. Grimes if (preen == 0) 5448fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 5458fae3551SRodney W. Grimes pass2(); 546ed75b5a1SKirk McKusick IOstats("Pass2"); 5478fae3551SRodney W. Grimes 5488fae3551SRodney W. Grimes /* 5498fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 5508fae3551SRodney W. Grimes */ 5518fae3551SRodney W. Grimes if (preen == 0) 5528fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 5538fae3551SRodney W. Grimes pass3(); 554ed75b5a1SKirk McKusick IOstats("Pass3"); 5558fae3551SRodney W. Grimes 5568fae3551SRodney W. Grimes /* 5578fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 5588fae3551SRodney W. Grimes */ 5598fae3551SRodney W. Grimes if (preen == 0) 5608fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 5618fae3551SRodney W. Grimes pass4(); 562ed75b5a1SKirk McKusick IOstats("Pass4"); 5638fae3551SRodney W. Grimes 5648fae3551SRodney W. Grimes /* 5658fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 5668fae3551SRodney W. Grimes */ 5678fae3551SRodney W. Grimes if (preen == 0) 5688fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 5698fae3551SRodney W. Grimes pass5(); 570ed75b5a1SKirk McKusick IOstats("Pass5"); 5718fae3551SRodney W. Grimes 5728fae3551SRodney W. Grimes /* 5738fae3551SRodney W. Grimes * print out summary statistics 5748fae3551SRodney W. Grimes */ 5758fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 5768fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 5771dc349abSEd Maste files = maxino - UFS_ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 5787578c6abSKirk McKusick blks = n_blks + 5797578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 5807578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 5817578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 5827578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 5837578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 5847578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 585a1c9ec3cSMatthew D Fleming pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n", 586a1c9ec3cSMatthew D Fleming countdirs, files - countdirs, blks); 5877578c6abSKirk McKusick } 58884fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 58984fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 59084fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 59184fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 59284fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 59384fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 5948fae3551SRodney W. Grimes if (debug) { 5957578c6abSKirk McKusick if (files < 0) 596a1c9ec3cSMatthew D Fleming printf("%jd inodes missing\n", -files); 5977578c6abSKirk McKusick if (blks < 0) 598a1c9ec3cSMatthew D Fleming printf("%jd blocks missing\n", -blks); 5998fae3551SRodney W. Grimes if (duplist != NULL) { 6008fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 6018fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 602a1c9ec3cSMatthew D Fleming printf(" %jd,", (intmax_t)dp->dup); 6038fae3551SRodney W. Grimes printf("\n"); 6048fae3551SRodney W. Grimes } 6058fae3551SRodney W. Grimes } 6068fae3551SRodney W. Grimes duplist = (struct dups *)0; 6078fae3551SRodney W. Grimes muldup = (struct dups *)0; 6088fae3551SRodney W. Grimes inocleanup(); 609802cd8e6SDavid Greenman if (fsmodified) { 610d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 6118fae3551SRodney W. Grimes sbdirty(); 6128fae3551SRodney W. Grimes } 6135cc52631SKirk McKusick if (cvtlevel && (sblk.b_flags & B_DIRTY) != 0) { 6148fae3551SRodney W. Grimes /* 6158fae3551SRodney W. Grimes * Write out the duplicate super blocks 6168fae3551SRodney W. Grimes */ 617f644caadSKirk McKusick if (sbput(fswritefd, &sblock, sblock.fs_ncg) == 0) 618f644caadSKirk McKusick fsmodified = 1; 6198fae3551SRodney W. Grimes } 620b1897c19SJulian Elischer if (rerun) 621b1897c19SJulian Elischer resolved = 0; 622571b29eeSPeter Wemm 623d0e1503bSPeter Wemm /* 624aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 625d0e1503bSPeter Wemm */ 6267578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 627b1897c19SJulian Elischer resolved = 0; 628b1897c19SJulian Elischer ckfini(resolved); 629d33e92f9SJulian Elischer 630d33e92f9SJulian Elischer for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 631d33e92f9SJulian Elischer if (inostathead[cylno].il_stat != NULL) 632d33e92f9SJulian Elischer free((char *)inostathead[cylno].il_stat); 633d33e92f9SJulian Elischer free((char *)inostathead); 634d33e92f9SJulian Elischer inostathead = NULL; 635d33e92f9SJulian Elischer if (fsmodified && !preen) 6368fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 6377703a6ffSScott Long if (rerun) { 6387703a6ffSScott Long if (wantrestart && (restarts++ < 10) && 6397703a6ffSScott Long (preen || reply("RESTART"))) 6407703a6ffSScott Long return (ERESTART); 64147ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 6427703a6ffSScott Long } 643db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) != 0) { 644d33e92f9SJulian Elischer if (!fsmodified) 645d33e92f9SJulian Elischer return (0); 6468fae3551SRodney W. Grimes if (!preen) 6478fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 6488fae3551SRodney W. Grimes sync(); 6498fae3551SRodney W. Grimes return (4); 6508fae3551SRodney W. Grimes } 651469759f8SDavid Bright return (rerun ? ERERUN : 0); 6528fae3551SRodney W. Grimes } 653571b29eeSPeter Wemm 654db3f838dSPawel Jakub Dawidek static int 655db3f838dSPawel Jakub Dawidek chkdoreload(struct statfs *mntp) 656db3f838dSPawel Jakub Dawidek { 65724adb851SCraig Rodrigues struct iovec *iov; 65824adb851SCraig Rodrigues int iovlen; 65924adb851SCraig Rodrigues char errmsg[255]; 660db3f838dSPawel Jakub Dawidek 661db3f838dSPawel Jakub Dawidek if (mntp == NULL) 662db3f838dSPawel Jakub Dawidek return (0); 66324adb851SCraig Rodrigues 66424adb851SCraig Rodrigues iov = NULL; 66524adb851SCraig Rodrigues iovlen = 0; 66624adb851SCraig Rodrigues errmsg[0] = '\0'; 667db3f838dSPawel Jakub Dawidek /* 668db3f838dSPawel Jakub Dawidek * We modified a mounted file system. Do a mount update on 669db3f838dSPawel Jakub Dawidek * it unless it is read-write, so we can continue using it 670db3f838dSPawel Jakub Dawidek * as safely as possible. 671db3f838dSPawel Jakub Dawidek */ 672db3f838dSPawel Jakub Dawidek if (mntp->f_flags & MNT_RDONLY) { 67324adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 67424adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 67524adb851SCraig Rodrigues (size_t)-1); 67624adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 67724adb851SCraig Rodrigues (size_t)-1); 67824adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 67924adb851SCraig Rodrigues sizeof(errmsg)); 680d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 6816910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "reload", NULL, 0); 682205e074fSCraig Rodrigues /* 683205e074fSCraig Rodrigues * XX: We need the following line until we clean up 684205e074fSCraig Rodrigues * nmount parsing of root mounts and NFS root mounts. 685205e074fSCraig Rodrigues */ 686d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "ro", NULL, 0); 687defc9d50SDavid E. O'Brien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 688db3f838dSPawel Jakub Dawidek return (0); 689db3f838dSPawel Jakub Dawidek } 69024adb851SCraig Rodrigues pwarn("mount reload of '%s' failed: %s %s\n\n", 69124adb851SCraig Rodrigues mntp->f_mntonname, strerror(errno), errmsg); 692db3f838dSPawel Jakub Dawidek return (1); 693db3f838dSPawel Jakub Dawidek } 694db3f838dSPawel Jakub Dawidek return (0); 695db3f838dSPawel Jakub Dawidek } 696db3f838dSPawel Jakub Dawidek 697571b29eeSPeter Wemm /* 69815fca934SKirk McKusick * Get the mount point information for name. 699571b29eeSPeter Wemm */ 700571b29eeSPeter Wemm static struct statfs * 701b70cd7eeSWarner Losh getmntpt(const char *name) 702571b29eeSPeter Wemm { 703571b29eeSPeter Wemm struct stat devstat, mntdevstat; 704d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 705599304a4SPoul-Henning Kamp char *ddevname; 70615fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 70715fca934SKirk McKusick int i, mntsize, isdev; 708571b29eeSPeter Wemm 70915fca934SKirk McKusick if (stat(name, &devstat) != 0) 710571b29eeSPeter Wemm return (NULL); 71115fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 71215fca934SKirk McKusick isdev = 1; 71315fca934SKirk McKusick else 71415fca934SKirk McKusick isdev = 0; 715571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 716571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 71715fca934SKirk McKusick statfsp = &mntbuf[i]; 718599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 719599304a4SPoul-Henning Kamp if (*ddevname != '/') { 720333d0284SConrad Meyer if (strlen(_PATH_DEV) + strlen(ddevname) + 1 > 721333d0284SConrad Meyer sizeof(statfsp->f_mntfromname)) 722333d0284SConrad Meyer continue; 723d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 724599304a4SPoul-Henning Kamp strcat(device, ddevname); 72515fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 72615fca934SKirk McKusick } 72715fca934SKirk McKusick if (isdev == 0) { 72815fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 72915fca934SKirk McKusick continue; 73015fca934SKirk McKusick return (statfsp); 731d0e1503bSPeter Wemm } 732599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 733d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 73415fca934SKirk McKusick return (statfsp); 735571b29eeSPeter Wemm } 73615fca934SKirk McKusick statfsp = NULL; 73715fca934SKirk McKusick return (statfsp); 738571b29eeSPeter Wemm } 7399ea6f4f0SAdrian Chadd 7409ea6f4f0SAdrian Chadd static void 741b70cd7eeSWarner Losh usage(void) 7429ea6f4f0SAdrian Chadd { 7439ea6f4f0SAdrian Chadd (void) fprintf(stderr, 744db83b143SRenato Botelho "usage: %s [-BCdEFfnpRrSyZ] [-b block] [-c level] [-m mode] filesystem ...\n", 7458e2e167cSMark Murray getprogname()); 7469ea6f4f0SAdrian Chadd exit(1); 7479ea6f4f0SAdrian Chadd } 7487703a6ffSScott Long 7497703a6ffSScott Long void 7507703a6ffSScott Long infohandler(int sig __unused) 7517703a6ffSScott Long { 7527703a6ffSScott Long got_siginfo = 1; 7537703a6ffSScott Long } 7547703a6ffSScott Long 7557703a6ffSScott Long void 7567703a6ffSScott Long alarmhandler(int sig __unused) 7577703a6ffSScott Long { 7587703a6ffSScott Long got_sigalarm = 1; 7597703a6ffSScott Long } 760