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> 6424adb851SCraig Rodrigues #include <mntopts.h> 65d0e1503bSPeter Wemm #include <paths.h> 6684fc0d7eSMaxime Henrion #include <stdint.h> 67bf58d635SIan Dowse #include <string.h> 687649cb00SKirk McKusick #include <time.h> 69780a5c1eSPeter Wemm 708fae3551SRodney W. Grimes #include "fsck.h" 71780a5c1eSPeter Wemm 727703a6ffSScott Long int restarts; 737703a6ffSScott Long 74b70cd7eeSWarner Losh static void usage(void) __dead2; 756a5972dbSKirk McKusick static intmax_t argtoimax(int flag, const char *req, const char *str, int base); 76b70cd7eeSWarner Losh static int checkfilesys(char *filesys); 77db3f838dSPawel Jakub Dawidek static int chkdoreload(struct statfs *mntp); 78b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 798fae3551SRodney W. Grimes 8031f4ab50SBruce Evans int 81b70cd7eeSWarner Losh main(int argc, char *argv[]) 828fae3551SRodney W. Grimes { 838fae3551SRodney W. Grimes int ch; 84d33e92f9SJulian Elischer struct rlimit rlimit; 851660ae87SScott Long struct itimerval itimerval; 86469759f8SDavid Bright int fsret; 879ea6f4f0SAdrian Chadd int ret = 0; 888fae3551SRodney W. Grimes 898fae3551SRodney W. Grimes sync(); 909ea6f4f0SAdrian Chadd skipclean = 1; 91910b491eSKirk McKusick inoopt = 0; 920061238fSKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npRrSyZz")) != -1) { 938fae3551SRodney W. Grimes switch (ch) { 948fae3551SRodney W. Grimes case 'b': 959ea6f4f0SAdrian Chadd skipclean = 0; 966a5972dbSKirk McKusick bflag = argtoimax('b', "number", optarg, 10); 976a5972dbSKirk McKusick printf("Alternate super block location: %jd\n", bflag); 988fae3551SRodney W. Grimes break; 998fae3551SRodney W. Grimes 1007578c6abSKirk McKusick case 'B': 1017578c6abSKirk McKusick bkgrdflag = 1; 1027578c6abSKirk McKusick break; 1037578c6abSKirk McKusick 1048fae3551SRodney W. Grimes case 'c': 1059ea6f4f0SAdrian Chadd skipclean = 0; 1066a5972dbSKirk McKusick cvtlevel = argtoimax('c', "conversion level", optarg, 1076a5972dbSKirk McKusick 10); 1081c85e6a3SKirk McKusick if (cvtlevel < 3) 1091c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 1101c85e6a3SKirk McKusick cvtlevel); 1118fae3551SRodney W. Grimes break; 1128fae3551SRodney W. Grimes 1138fae3551SRodney W. Grimes case 'd': 1148fae3551SRodney W. Grimes debug++; 1158fae3551SRodney W. Grimes break; 1168fae3551SRodney W. Grimes 1178d3dfc26SDag-Erling Smørgrav case 'E': 1188d3dfc26SDag-Erling Smørgrav Eflag++; 1198d3dfc26SDag-Erling Smørgrav break; 1208d3dfc26SDag-Erling Smørgrav 12141cee58cSDavid Greenman case 'f': 1229ea6f4f0SAdrian Chadd skipclean = 0; 1238fae3551SRodney W. Grimes break; 1248fae3551SRodney W. Grimes 12515fca934SKirk McKusick case 'F': 12615fca934SKirk McKusick bkgrdcheck = 1; 12715fca934SKirk McKusick break; 12815fca934SKirk McKusick 1298fae3551SRodney W. Grimes case 'm': 1306a5972dbSKirk McKusick lfmode = argtoimax('m', "mode", optarg, 8); 1318fae3551SRodney W. Grimes if (lfmode &~ 07777) 132780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1338fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1348fae3551SRodney W. Grimes break; 1358fae3551SRodney W. Grimes 1368fae3551SRodney W. Grimes case 'n': 1378fae3551SRodney W. Grimes nflag++; 1388fae3551SRodney W. Grimes yflag = 0; 1398fae3551SRodney W. Grimes break; 1408fae3551SRodney W. Grimes 1419ea6f4f0SAdrian Chadd case 'p': 1429ea6f4f0SAdrian Chadd preen++; 143111a5220SDavid E. O'Brien /*FALLTHROUGH*/ 144111a5220SDavid E. O'Brien 145111a5220SDavid E. O'Brien case 'C': 146111a5220SDavid E. O'Brien ckclean++; 1479ea6f4f0SAdrian Chadd break; 1489ea6f4f0SAdrian Chadd 1497703a6ffSScott Long case 'R': 1507703a6ffSScott Long wantrestart = 1; 1517703a6ffSScott Long break; 152910b491eSKirk McKusick case 'r': 153910b491eSKirk McKusick inoopt++; 154910b491eSKirk McKusick break; 155910b491eSKirk McKusick 156ce779f37SScott Long case 'S': 157ce779f37SScott Long surrender = 1; 158ce779f37SScott Long break; 159ce779f37SScott Long 1608fae3551SRodney W. Grimes case 'y': 1618fae3551SRodney W. Grimes yflag++; 1628fae3551SRodney W. Grimes nflag = 0; 1638fae3551SRodney W. Grimes break; 1648fae3551SRodney W. Grimes 1652b5373deSDag-Erling Smørgrav case 'Z': 1662b5373deSDag-Erling Smørgrav Zflag++; 1672b5373deSDag-Erling Smørgrav break; 1682b5373deSDag-Erling Smørgrav 1690061238fSKirk McKusick case 'z': 1700061238fSKirk McKusick zflag++; 1710061238fSKirk McKusick break; 1720061238fSKirk McKusick 1738fae3551SRodney W. Grimes default: 1749ea6f4f0SAdrian Chadd usage(); 1758fae3551SRodney W. Grimes } 1768fae3551SRodney W. Grimes } 1778fae3551SRodney W. Grimes argc -= optind; 1788fae3551SRodney W. Grimes argv += optind; 1799ea6f4f0SAdrian Chadd 1809ea6f4f0SAdrian Chadd if (!argc) 1819ea6f4f0SAdrian Chadd usage(); 1829ea6f4f0SAdrian Chadd 1838fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1848fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 185111a5220SDavid E. O'Brien if (ckclean) 1868fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1876db798caSIan Dowse signal(SIGINFO, infohandler); 1881660ae87SScott Long if (bkgrdflag) { 1891660ae87SScott Long signal(SIGALRM, alarmhandler); 1901660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1911660ae87SScott Long itimerval.it_interval.tv_usec = 0; 1921660ae87SScott Long itimerval.it_value.tv_sec = 5; 1931660ae87SScott Long itimerval.it_value.tv_usec = 0; 1941660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 1951660ae87SScott Long } 196d33e92f9SJulian Elischer /* 197d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 198d33e92f9SJulian Elischer * with huge file systems. 199d33e92f9SJulian Elischer */ 200d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 201d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 202d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 203d33e92f9SJulian Elischer } 2047703a6ffSScott Long while (argc > 0) { 205469759f8SDavid Bright if ((fsret = checkfilesys(*argv)) == ERESTART) 2067703a6ffSScott Long continue; 207469759f8SDavid Bright ret |= fsret; 2087703a6ffSScott Long argc--; 2097703a6ffSScott Long argv++; 2107703a6ffSScott Long } 211d33e92f9SJulian Elischer 2128fae3551SRodney W. Grimes if (returntosingle) 2139ea6f4f0SAdrian Chadd ret = 2; 2148fae3551SRodney W. Grimes exit(ret); 2158fae3551SRodney W. Grimes } 2168fae3551SRodney W. Grimes 2176a5972dbSKirk McKusick static intmax_t 2186a5972dbSKirk McKusick argtoimax(int flag, const char *req, const char *str, int base) 2198fae3551SRodney W. Grimes { 2208fae3551SRodney W. Grimes char *cp; 2216a5972dbSKirk McKusick intmax_t ret; 2228fae3551SRodney W. Grimes 2236a5972dbSKirk McKusick ret = strtoimax(str, &cp, base); 2248fae3551SRodney W. Grimes if (cp == str || *cp) 225780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 2268fae3551SRodney W. Grimes return (ret); 2278fae3551SRodney W. Grimes } 2288fae3551SRodney W. Grimes 2298fae3551SRodney W. Grimes /* 2308fae3551SRodney W. Grimes * Check the specified file system. 2318fae3551SRodney W. Grimes */ 2328fae3551SRodney W. Grimes /* ARGSUSED */ 233780a5c1eSPeter Wemm static int 234b70cd7eeSWarner Losh checkfilesys(char *filesys) 2358fae3551SRodney W. Grimes { 2361c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 2378fae3551SRodney W. Grimes struct dups *dp; 2387578c6abSKirk McKusick struct statfs *mntp; 239ff76fc7fSKirk McKusick struct stat snapdir; 240ff76fc7fSKirk McKusick struct group *grp; 24124adb851SCraig Rodrigues struct iovec *iov; 24224adb851SCraig Rodrigues char errmsg[255]; 24391882068SKirk McKusick int ofsmodified; 24424adb851SCraig Rodrigues int iovlen; 245db3f838dSPawel Jakub Dawidek int cylno; 246a1c9ec3cSMatthew D Fleming intmax_t blks, files; 24784fc0d7eSMaxime Henrion size_t size; 2488fae3551SRodney W. Grimes 24924adb851SCraig Rodrigues iov = NULL; 25024adb851SCraig Rodrigues iovlen = 0; 25124adb851SCraig Rodrigues errmsg[0] = '\0'; 2527703a6ffSScott Long fsutilinit(); 2537703a6ffSScott Long fsckinit(); 25424adb851SCraig Rodrigues 2558fae3551SRodney W. Grimes cdevname = filesys; 256111a5220SDavid E. O'Brien if (debug && ckclean) 2578fae3551SRodney W. Grimes pwarn("starting\n"); 25815fca934SKirk McKusick /* 25915fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 26015fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 26115fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 26215fca934SKirk McKusick */ 26315fca934SKirk McKusick mntp = getmntpt(filesys); 26415fca934SKirk McKusick if (mntp != NULL) 26515fca934SKirk McKusick filesys = mntp->f_mntfromname; 26615fca934SKirk McKusick else 26715fca934SKirk McKusick filesys = blockcheck(filesys); 26815fca934SKirk McKusick /* 26915fca934SKirk McKusick * If -F flag specified, check to see whether a background check 27015fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 27115fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 27215fca934SKirk McKusick * exit status will cause a foreground check to be run. 27315fca934SKirk McKusick */ 27438375c40SKirk McKusick sblock_init(); 27515fca934SKirk McKusick if (bkgrdcheck) { 27615fca934SKirk McKusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 27715fca934SKirk McKusick exit(3); /* Cannot read superblock */ 27815fca934SKirk McKusick close(fsreadfd); 279113db2ddSJeff Roberson /* Earlier background failed or journaled */ 280113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 281113db2ddSJeff Roberson exit(4); 28215fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 28315fca934SKirk McKusick exit(5); /* Not running soft updates */ 28415fca934SKirk McKusick size = MIBSIZE; 28515fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 28615fca934SKirk McKusick exit(6); /* Lacks kernel support */ 28715fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 28815fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 28915fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 29015fca934SKirk McKusick exit(0); 29115fca934SKirk McKusick } 292111a5220SDavid E. O'Brien if (ckclean && skipclean) { 293aef8d244SPawel Jakub Dawidek /* 294aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 295aef8d244SPawel Jakub Dawidek */ 296aef8d244SPawel Jakub Dawidek if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 297aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 298aef8d244SPawel Jakub Dawidek close(fsreadfd); 299aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 300aef8d244SPawel Jakub Dawidek //printf("GJournaled file system detected on %s.\n", 301aef8d244SPawel Jakub Dawidek // filesys); 302aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 303aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 304aef8d244SPawel Jakub Dawidek exit(0); 305aef8d244SPawel Jakub Dawidek } 306aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 307aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 308db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) == 0) 309aef8d244SPawel Jakub Dawidek exit(0); 310db3f838dSPawel Jakub Dawidek exit(4); 311aef8d244SPawel Jakub Dawidek } else { 312bd3c72d0SDavid E. O'Brien pfatal( 313bd3c72d0SDavid E. O'Brien "UNEXPECTED INCONSISTENCY, CANNOT RUN FAST FSCK\n"); 314aef8d244SPawel Jakub Dawidek } 315aef8d244SPawel Jakub Dawidek } 316aef8d244SPawel Jakub Dawidek } 3177578c6abSKirk McKusick /* 3187578c6abSKirk McKusick * If we are to do a background check: 3197578c6abSKirk McKusick * Get the mount point information of the file system 3207578c6abSKirk McKusick * create snapshot file 3217578c6abSKirk McKusick * return created snapshot file 3227578c6abSKirk McKusick * if not found, clear bkgrdflag and proceed with normal fsck 3237578c6abSKirk McKusick */ 3247578c6abSKirk McKusick if (bkgrdflag) { 3257578c6abSKirk McKusick if (mntp == NULL) { 3267578c6abSKirk McKusick bkgrdflag = 0; 32738375c40SKirk McKusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 3287578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 3297578c6abSKirk McKusick bkgrdflag = 0; 330bd3c72d0SDavid E. O'Brien pfatal( 331bd3c72d0SDavid E. O'Brien "NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n"); 3327578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 3337578c6abSKirk McKusick bkgrdflag = 0; 33438375c40SKirk McKusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 33538375c40SKirk McKusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 33638375c40SKirk McKusick if (readsb(0) != 0) { 337113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) { 33838375c40SKirk McKusick bkgrdflag = 0; 339bd3c72d0SDavid E. O'Brien pfatal( 340bd3c72d0SDavid E. O'Brien "UNEXPECTED INCONSISTENCY, CANNOT RUN IN BACKGROUND\n"); 34138375c40SKirk McKusick } 34238375c40SKirk McKusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 343111a5220SDavid E. O'Brien skipclean && ckclean) { 34438375c40SKirk McKusick /* 34538375c40SKirk McKusick * file system is clean; 34638375c40SKirk McKusick * skip snapshot and report it clean 34738375c40SKirk McKusick */ 348bd3c72d0SDavid E. O'Brien pwarn( 349bd3c72d0SDavid E. O'Brien "FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 35038375c40SKirk McKusick goto clean; 35138375c40SKirk McKusick } 35238375c40SKirk McKusick } 35338375c40SKirk McKusick close(fsreadfd); 35438375c40SKirk McKusick } 35538375c40SKirk McKusick if (bkgrdflag) { 356ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 3577578c6abSKirk McKusick mntp->f_mntonname); 358ff76fc7fSKirk McKusick if (stat(snapname, &snapdir) < 0) { 359ff76fc7fSKirk McKusick if (errno != ENOENT) { 360ff76fc7fSKirk McKusick bkgrdflag = 0; 361bd3c72d0SDavid E. O'Brien pfatal( 362bd3c72d0SDavid E. O'Brien "CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n", 363bd3c72d0SDavid E. O'Brien snapname, strerror(errno)); 3647d5e6562SPedro F. Giffuni } else if ((grp = getgrnam("operator")) == NULL || 365ff76fc7fSKirk McKusick mkdir(snapname, 0770) < 0 || 366ff76fc7fSKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 367ff76fc7fSKirk McKusick chmod(snapname, 0770) < 0) { 368ff76fc7fSKirk McKusick bkgrdflag = 0; 369bd3c72d0SDavid E. O'Brien pfatal( 370bd3c72d0SDavid E. O'Brien "CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n", 371bd3c72d0SDavid E. O'Brien snapname, strerror(errno)); 372ff76fc7fSKirk McKusick } 373ff76fc7fSKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 374ff76fc7fSKirk McKusick bkgrdflag = 0; 375bd3c72d0SDavid E. O'Brien pfatal( 376bd3c72d0SDavid E. O'Brien "%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n", 377bd3c72d0SDavid E. O'Brien snapname); 378ff76fc7fSKirk McKusick } 379ff76fc7fSKirk McKusick } 380ff76fc7fSKirk McKusick if (bkgrdflag) { 381ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, 382ff76fc7fSKirk McKusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 38324adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 38424adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", snapname, 38524adb851SCraig Rodrigues (size_t)-1); 38624adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 38724adb851SCraig Rodrigues (size_t)-1); 38824adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 38924adb851SCraig Rodrigues sizeof(errmsg)); 3906910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 3916910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 39224adb851SCraig Rodrigues 393defc9d50SDavid E. O'Brien while (nmount(iov, iovlen, mntp->f_flags) < 0) { 3947578c6abSKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 3957578c6abSKirk McKusick continue; 3967578c6abSKirk McKusick bkgrdflag = 0; 39724adb851SCraig Rodrigues pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 39824adb851SCraig Rodrigues snapname, strerror(errno), errmsg); 3997578c6abSKirk McKusick break; 4007578c6abSKirk McKusick } 4017578c6abSKirk McKusick if (bkgrdflag != 0) 4027578c6abSKirk McKusick filesys = snapname; 4037578c6abSKirk McKusick } 4047578c6abSKirk McKusick } 4057578c6abSKirk McKusick 406780a5c1eSPeter Wemm switch (setup(filesys)) { 407780a5c1eSPeter Wemm case 0: 4088fae3551SRodney W. Grimes if (preen) 4098fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 4106b100474SJulian Elischer return (0); 411780a5c1eSPeter Wemm case -1: 41238375c40SKirk McKusick clean: 413bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 414bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 415a1c9ec3cSMatthew D Fleming printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n", 416a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nffree, 417a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nbfree, 4186b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 41941cee58cSDavid Greenman return (0); 42041cee58cSDavid Greenman } 421113db2ddSJeff Roberson /* 422113db2ddSJeff Roberson * Determine if we can and should do journal recovery. 423113db2ddSJeff Roberson */ 424edad6026SXin LI if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 425edad6026SXin LI if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 42608bb15b9SBjoern A. Zeeb if (preen || reply("USE JOURNAL")) { 427113db2ddSJeff Roberson if (suj_check(filesys) == 0) { 428edad6026SXin LI printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 429113db2ddSJeff Roberson if (chkdoreload(mntp) == 0) 430113db2ddSJeff Roberson exit(0); 431113db2ddSJeff Roberson exit(4); 432113db2ddSJeff Roberson } 433113db2ddSJeff Roberson } 434edad6026SXin LI printf("** Skipping journal, falling through to full fsck\n\n"); 435edad6026SXin LI } 436113db2ddSJeff Roberson /* 437113db2ddSJeff Roberson * Write the superblock so we don't try to recover the 43891882068SKirk McKusick * journal on another pass. If this is the only change 43991882068SKirk McKusick * to the filesystem, we do not want it to be called 44091882068SKirk McKusick * out as modified. 441113db2ddSJeff Roberson */ 442113db2ddSJeff Roberson sblock.fs_mtime = time(NULL); 443113db2ddSJeff Roberson sbdirty(); 44491882068SKirk McKusick ofsmodified = fsmodified; 44591882068SKirk McKusick flush(fswritefd, &sblk); 44691882068SKirk McKusick fsmodified = ofsmodified; 447113db2ddSJeff Roberson } 44831461aa2SKirk McKusick /* 44931461aa2SKirk McKusick * If the filesystem was run on an old kernel that did not 45031461aa2SKirk McKusick * support check hashes, clear the check-hash flags so that 45131461aa2SKirk McKusick * we do not try to verify them. 45231461aa2SKirk McKusick */ 45331461aa2SKirk McKusick if ((sblock.fs_flags & FS_METACKHASH) == 0) 45431461aa2SKirk McKusick sblock.fs_metackhash = 0; 45531461aa2SKirk McKusick /* 45631461aa2SKirk McKusick * If we are running on a kernel that can provide check hashes 45731461aa2SKirk McKusick * that are not yet enabled for the filesystem and we are 45831461aa2SKirk McKusick * running manually without the -y flag, offer to add any 45931461aa2SKirk McKusick * supported check hashes that are not already enabled. 46031461aa2SKirk McKusick */ 46131461aa2SKirk McKusick ckhashadd = 0; 46231461aa2SKirk McKusick if (preen == 0 && yflag == 0 && sblock.fs_magic != FS_UFS1_MAGIC && 46331461aa2SKirk McKusick fswritefd != -1 && getosreldate() >= P_OSREL_CK_CYLGRP) { 46431461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_CYLGRP) == 0 && 4659fc5d538SKirk McKusick reply("ADD CYLINDER GROUP CHECK-HASH PROTECTION") != 0) { 46631461aa2SKirk McKusick ckhashadd |= CK_CYLGRP; 4679fc5d538SKirk McKusick sblock.fs_metackhash |= CK_CYLGRP; 4689fc5d538SKirk McKusick } 46931461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_SUPERBLOCK) == 0 && 47031461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_SUPERBLOCK && 471ec888383SKirk McKusick reply("ADD SUPERBLOCK CHECK-HASH PROTECTION") != 0) { 4729fc5d538SKirk McKusick ckhashadd |= CK_SUPERBLOCK; 473ec888383SKirk McKusick sblock.fs_metackhash |= CK_SUPERBLOCK; 474ec888383SKirk McKusick } 47531461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INODE) == 0 && 47631461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INODE && 4779fc5d538SKirk McKusick reply("ADD INODE CHECK-HASH PROTECTION") != 0) { 47831461aa2SKirk McKusick ckhashadd |= CK_INODE; 4799fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INODE; 4809fc5d538SKirk McKusick } 4818f829a5cSKirk McKusick #ifdef notyet 48231461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INDIR) == 0 && 48331461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INDIR && 4849fc5d538SKirk McKusick reply("ADD INDIRECT BLOCK CHECK-HASH PROTECTION") != 0) { 48531461aa2SKirk McKusick ckhashadd |= CK_INDIR; 4869fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INDIR; 4879fc5d538SKirk McKusick } 48831461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_DIR) == 0 && 48931461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_DIR && 4909fc5d538SKirk McKusick reply("ADD DIRECTORY CHECK-HASH PROTECTION") != 0) { 49131461aa2SKirk McKusick ckhashadd |= CK_DIR; 4929fc5d538SKirk McKusick sblock.fs_metackhash |= CK_DIR; 4939fc5d538SKirk McKusick } 49431461aa2SKirk McKusick #endif /* notyet */ 4959fc5d538SKirk McKusick if (ckhashadd != 0) { 49631461aa2SKirk McKusick sblock.fs_flags |= FS_METACKHASH; 4979fc5d538SKirk McKusick sbdirty(); 4989fc5d538SKirk McKusick } 49931461aa2SKirk McKusick } 5008fae3551SRodney W. Grimes /* 501b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 502b1897c19SJulian Elischer * the superblock should be marked clean. 503b1897c19SJulian Elischer */ 504b1897c19SJulian Elischer resolved = 1; 505b1897c19SJulian Elischer /* 5068fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 5078fae3551SRodney W. Grimes */ 5088fae3551SRodney W. Grimes if (preen == 0) { 5098fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 5107578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 5118fae3551SRodney W. Grimes printf("** Root file system\n"); 5128fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 5138fae3551SRodney W. Grimes } 514ed75b5a1SKirk McKusick clock_gettime(CLOCK_REALTIME_PRECISE, &startprog); 5158fae3551SRodney W. Grimes pass1(); 516ed75b5a1SKirk McKusick IOstats("Pass1"); 5178fae3551SRodney W. Grimes 5188fae3551SRodney W. Grimes /* 5198fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 5208fae3551SRodney W. Grimes */ 5218fae3551SRodney W. Grimes if (duplist) { 522b1897c19SJulian Elischer if (preen || usedsoftdep) 52321be55ccSKirk McKusick pfatal("INTERNAL ERROR: dups with %s%s%s", 52421be55ccSKirk McKusick preen ? "-p" : "", 52521be55ccSKirk McKusick (preen && usedsoftdep) ? " and " : "", 52621be55ccSKirk McKusick usedsoftdep ? "softupdates" : ""); 5278fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 5288fae3551SRodney W. Grimes pass1b(); 529ed75b5a1SKirk McKusick IOstats("Pass1b"); 5308fae3551SRodney W. Grimes } 5318fae3551SRodney W. Grimes 5328fae3551SRodney W. Grimes /* 5338fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 5348fae3551SRodney W. Grimes */ 5358fae3551SRodney W. Grimes if (preen == 0) 5368fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 5378fae3551SRodney W. Grimes pass2(); 538ed75b5a1SKirk McKusick IOstats("Pass2"); 5398fae3551SRodney W. Grimes 5408fae3551SRodney W. Grimes /* 5418fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 5428fae3551SRodney W. Grimes */ 5438fae3551SRodney W. Grimes if (preen == 0) 5448fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 5458fae3551SRodney W. Grimes pass3(); 546ed75b5a1SKirk McKusick IOstats("Pass3"); 5478fae3551SRodney W. Grimes 5488fae3551SRodney W. Grimes /* 5498fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 5508fae3551SRodney W. Grimes */ 5518fae3551SRodney W. Grimes if (preen == 0) 5528fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 5538fae3551SRodney W. Grimes pass4(); 554ed75b5a1SKirk McKusick IOstats("Pass4"); 5558fae3551SRodney W. Grimes 5568fae3551SRodney W. Grimes /* 5578fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 5588fae3551SRodney W. Grimes */ 5598fae3551SRodney W. Grimes if (preen == 0) 5608fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 5618fae3551SRodney W. Grimes pass5(); 562ed75b5a1SKirk McKusick IOstats("Pass5"); 5638fae3551SRodney W. Grimes 5648fae3551SRodney W. Grimes /* 5658fae3551SRodney W. Grimes * print out summary statistics 5668fae3551SRodney W. Grimes */ 5678fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 5688fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 5691dc349abSEd Maste files = maxino - UFS_ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 5707578c6abSKirk McKusick blks = n_blks + 5717578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 5727578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 5737578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 5747578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 5757578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 5767578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 577a1c9ec3cSMatthew D Fleming pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n", 578a1c9ec3cSMatthew D Fleming countdirs, files - countdirs, blks); 5797578c6abSKirk McKusick } 58084fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 58184fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 58284fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 58384fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 58484fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 58584fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 5868fae3551SRodney W. Grimes if (debug) { 5877578c6abSKirk McKusick if (files < 0) 588a1c9ec3cSMatthew D Fleming printf("%jd inodes missing\n", -files); 5897578c6abSKirk McKusick if (blks < 0) 590a1c9ec3cSMatthew D Fleming printf("%jd blocks missing\n", -blks); 5918fae3551SRodney W. Grimes if (duplist != NULL) { 5928fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 5938fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 594a1c9ec3cSMatthew D Fleming printf(" %jd,", (intmax_t)dp->dup); 5958fae3551SRodney W. Grimes printf("\n"); 5968fae3551SRodney W. Grimes } 5978fae3551SRodney W. Grimes } 5988fae3551SRodney W. Grimes duplist = (struct dups *)0; 5998fae3551SRodney W. Grimes muldup = (struct dups *)0; 6008fae3551SRodney W. Grimes inocleanup(); 601802cd8e6SDavid Greenman if (fsmodified) { 602d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 6038fae3551SRodney W. Grimes sbdirty(); 6048fae3551SRodney W. Grimes } 6058fae3551SRodney W. Grimes if (cvtlevel && sblk.b_dirty) { 6068fae3551SRodney W. Grimes /* 6078fae3551SRodney W. Grimes * Write out the duplicate super blocks 6088fae3551SRodney W. Grimes */ 6098fae3551SRodney W. Grimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 610aef8d244SPawel Jakub Dawidek blwrite(fswritefd, (char *)&sblock, 6111c85e6a3SKirk McKusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 6121c85e6a3SKirk McKusick SBLOCKSIZE); 6138fae3551SRodney W. Grimes } 614b1897c19SJulian Elischer if (rerun) 615b1897c19SJulian Elischer resolved = 0; 616ed75b5a1SKirk McKusick finalIOstats(); 617571b29eeSPeter Wemm 618d0e1503bSPeter Wemm /* 619aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 620d0e1503bSPeter Wemm */ 6217578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 622b1897c19SJulian Elischer resolved = 0; 623b1897c19SJulian Elischer ckfini(resolved); 624d33e92f9SJulian Elischer 625d33e92f9SJulian Elischer for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 626d33e92f9SJulian Elischer if (inostathead[cylno].il_stat != NULL) 627d33e92f9SJulian Elischer free((char *)inostathead[cylno].il_stat); 628d33e92f9SJulian Elischer free((char *)inostathead); 629d33e92f9SJulian Elischer inostathead = NULL; 630d33e92f9SJulian Elischer if (fsmodified && !preen) 6318fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 6327703a6ffSScott Long if (rerun) { 6337703a6ffSScott Long if (wantrestart && (restarts++ < 10) && 6347703a6ffSScott Long (preen || reply("RESTART"))) 6357703a6ffSScott Long return (ERESTART); 63647ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 6377703a6ffSScott Long } 638db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) != 0) { 639d33e92f9SJulian Elischer if (!fsmodified) 640d33e92f9SJulian Elischer return (0); 6418fae3551SRodney W. Grimes if (!preen) 6428fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 6438fae3551SRodney W. Grimes sync(); 6448fae3551SRodney W. Grimes return (4); 6458fae3551SRodney W. Grimes } 646469759f8SDavid Bright return (rerun ? ERERUN : 0); 6478fae3551SRodney W. Grimes } 648571b29eeSPeter Wemm 649db3f838dSPawel Jakub Dawidek static int 650db3f838dSPawel Jakub Dawidek chkdoreload(struct statfs *mntp) 651db3f838dSPawel Jakub Dawidek { 65224adb851SCraig Rodrigues struct iovec *iov; 65324adb851SCraig Rodrigues int iovlen; 65424adb851SCraig Rodrigues char errmsg[255]; 655db3f838dSPawel Jakub Dawidek 656db3f838dSPawel Jakub Dawidek if (mntp == NULL) 657db3f838dSPawel Jakub Dawidek return (0); 65824adb851SCraig Rodrigues 65924adb851SCraig Rodrigues iov = NULL; 66024adb851SCraig Rodrigues iovlen = 0; 66124adb851SCraig Rodrigues errmsg[0] = '\0'; 662db3f838dSPawel Jakub Dawidek /* 663db3f838dSPawel Jakub Dawidek * We modified a mounted file system. Do a mount update on 664db3f838dSPawel Jakub Dawidek * it unless it is read-write, so we can continue using it 665db3f838dSPawel Jakub Dawidek * as safely as possible. 666db3f838dSPawel Jakub Dawidek */ 667db3f838dSPawel Jakub Dawidek if (mntp->f_flags & MNT_RDONLY) { 66824adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 66924adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 67024adb851SCraig Rodrigues (size_t)-1); 67124adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 67224adb851SCraig Rodrigues (size_t)-1); 67324adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 67424adb851SCraig Rodrigues sizeof(errmsg)); 675d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 6766910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "reload", NULL, 0); 677205e074fSCraig Rodrigues /* 678205e074fSCraig Rodrigues * XX: We need the following line until we clean up 679205e074fSCraig Rodrigues * nmount parsing of root mounts and NFS root mounts. 680205e074fSCraig Rodrigues */ 681d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "ro", NULL, 0); 682defc9d50SDavid E. O'Brien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 683db3f838dSPawel Jakub Dawidek return (0); 684db3f838dSPawel Jakub Dawidek } 68524adb851SCraig Rodrigues pwarn("mount reload of '%s' failed: %s %s\n\n", 68624adb851SCraig Rodrigues mntp->f_mntonname, strerror(errno), errmsg); 687db3f838dSPawel Jakub Dawidek return (1); 688db3f838dSPawel Jakub Dawidek } 689db3f838dSPawel Jakub Dawidek return (0); 690db3f838dSPawel Jakub Dawidek } 691db3f838dSPawel Jakub Dawidek 692571b29eeSPeter Wemm /* 69315fca934SKirk McKusick * Get the mount point information for name. 694571b29eeSPeter Wemm */ 695571b29eeSPeter Wemm static struct statfs * 696b70cd7eeSWarner Losh getmntpt(const char *name) 697571b29eeSPeter Wemm { 698571b29eeSPeter Wemm struct stat devstat, mntdevstat; 699d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 700599304a4SPoul-Henning Kamp char *ddevname; 70115fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 70215fca934SKirk McKusick int i, mntsize, isdev; 703571b29eeSPeter Wemm 70415fca934SKirk McKusick if (stat(name, &devstat) != 0) 705571b29eeSPeter Wemm return (NULL); 70615fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 70715fca934SKirk McKusick isdev = 1; 70815fca934SKirk McKusick else 70915fca934SKirk McKusick isdev = 0; 710571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 711571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 71215fca934SKirk McKusick statfsp = &mntbuf[i]; 713599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 714599304a4SPoul-Henning Kamp if (*ddevname != '/') { 715333d0284SConrad Meyer if (strlen(_PATH_DEV) + strlen(ddevname) + 1 > 716333d0284SConrad Meyer sizeof(statfsp->f_mntfromname)) 717333d0284SConrad Meyer continue; 718d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 719599304a4SPoul-Henning Kamp strcat(device, ddevname); 72015fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 72115fca934SKirk McKusick } 72215fca934SKirk McKusick if (isdev == 0) { 72315fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 72415fca934SKirk McKusick continue; 72515fca934SKirk McKusick return (statfsp); 726d0e1503bSPeter Wemm } 727599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 728d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 72915fca934SKirk McKusick return (statfsp); 730571b29eeSPeter Wemm } 73115fca934SKirk McKusick statfsp = NULL; 73215fca934SKirk McKusick return (statfsp); 733571b29eeSPeter Wemm } 7349ea6f4f0SAdrian Chadd 7359ea6f4f0SAdrian Chadd static void 736b70cd7eeSWarner Losh usage(void) 7379ea6f4f0SAdrian Chadd { 7389ea6f4f0SAdrian Chadd (void) fprintf(stderr, 739db83b143SRenato Botelho "usage: %s [-BCdEFfnpRrSyZ] [-b block] [-c level] [-m mode] filesystem ...\n", 7408e2e167cSMark Murray getprogname()); 7419ea6f4f0SAdrian Chadd exit(1); 7429ea6f4f0SAdrian Chadd } 7437703a6ffSScott Long 7447703a6ffSScott Long void 7457703a6ffSScott Long infohandler(int sig __unused) 7467703a6ffSScott Long { 7477703a6ffSScott Long got_siginfo = 1; 7487703a6ffSScott Long } 7497703a6ffSScott Long 7507703a6ffSScott Long void 7517703a6ffSScott Long alarmhandler(int sig __unused) 7527703a6ffSScott Long { 7537703a6ffSScott Long got_sigalarm = 1; 7547703a6ffSScott Long } 755