/* $NetBSD: main.c,v 1.51 2004/06/25 14:50:15 wiz Exp $ */ /* * Copyright (c) 1980, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1993\n\ The Regents of the University of California. All rights reserved.\n"); #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; #else __RCSID("$NetBSD: main.c,v 1.51 2004/06/25 14:50:15 wiz Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fsck.h" #include "extern.h" #include "fsutil.h" int returntosingle; int main __P((int, char *[])); static int argtoi __P((int, char *, char *, int)); static int checkfilesys __P((const char *, char *, long, int)); static void usage __P((void)); int main(argc, argv) int argc; char *argv[]; { struct rlimit r; int ch; int ret = 0; if (getrlimit(RLIMIT_DATA, &r) == 0) { r.rlim_cur = r.rlim_max; (void) setrlimit(RLIMIT_DATA, &r); } sync(); skipclean = 1; markclean = 1; forceimage = 0; endian = 0; isappleufs = 0; while ((ch = getopt(argc, argv, "aB:b:c:dFfm:npqy")) != -1) { switch (ch) { case 'a': isappleufs = 1; break; case 'B': if (strcmp(optarg, "be") == 0) endian = BIG_ENDIAN; else if (strcmp(optarg, "le") == 0) endian = LITTLE_ENDIAN; else usage(); break; case 'b': skipclean = 0; bflag = argtoi('b', "number", optarg, 10); printf("Alternate super block location: %d\n", bflag); break; case 'c': skipclean = 0; cvtlevel = argtoi('c', "conversion level", optarg, 10); if (cvtlevel > 4) { cvtlevel = 4; warnx("Using maximum conversion level of %d\n",cvtlevel); } break; case 'd': debug++; break; case 'F': forceimage = 1; break; case 'f': skipclean = 0; break; case 'm': lfmode = argtoi('m', "mode", optarg, 8); if (lfmode &~ 07777) errx(EEXIT, "bad mode to -m: %o", lfmode); printf("** lost+found creation mode %o\n", lfmode); break; case 'n': nflag++; yflag = 0; break; case 'p': preen++; break; case 'q': quiet++; break; case 'y': yflag++; nflag = 0; break; default: usage(); } } argc -= optind; argv += optind; if (!argc) usage(); if (signal(SIGINT, SIG_IGN) != SIG_IGN) (void)signal(SIGINT, catch); if (preen) (void)signal(SIGQUIT, catchquit); signal(SIGINFO, infohandler); while (argc-- > 0) { const char *path = blockcheck(*argv); if (path == NULL) pfatal("Can't check %s\n", *argv); else (void)checkfilesys(blockcheck(*argv), 0, 0L, 0); argv++; } if (returntosingle) ret = 2; exit(ret); } static int argtoi(flag, req, str, base) int flag; char *req, *str; int base; { char *cp; int ret; ret = (int)strtol(str, &cp, base); if (cp == str || *cp) errx(EEXIT, "-%c flag requires a %s", flag, req); return (ret); } /* * Check the specified filesystem. */ /* ARGSUSED */ static int checkfilesys(filesys, mntpt, auxdata, child) const char *filesys; char *mntpt; long auxdata; int child; { daddr_t n_ffree, n_bfree; struct dups *dp; struct zlncnt *zlnp; int cylno; #ifdef LITE2BORKEN int flags; #endif if (preen && child) (void)signal(SIGQUIT, voidquit); setcdevname(filesys, preen); if (debug && preen) pwarn("starting\n"); switch (setup(filesys)) { case 0: if (preen) pfatal("CAN'T CHECK FILE SYSTEM."); /* fall through */ case -1: return (0); } /* * Cleared if any questions answered no. Used to decide if * the superblock should be marked clean. */ resolved = 1; /* * 1: scan inodes tallying blocks used */ if (preen == 0) { pwarn("** Last Mounted on %s\n", sblock->fs_fsmnt); if (hotroot()) pwarn("** Root file system\n"); pwarn("** Phase 1 - Check Blocks and Sizes\n"); } pass1(); /* * 1b: locate first references to duplicates, if any */ if (duplist) { if (preen) pfatal("INTERNAL ERROR: dups with -p\n"); if (usedsoftdep) pfatal("INTERNAL ERROR: dups with softdep\n"); pwarn("** Phase 1b - Rescan For More DUPS\n"); pass1b(); } /* * 2: traverse directories from root to mark all connected directories */ if (preen == 0) pwarn("** Phase 2 - Check Pathnames\n"); pass2(); /* * 3: scan inodes looking for disconnected directories */ if (preen == 0) pwarn("** Phase 3 - Check Connectivity\n"); pass3(); /* * 4: scan inodes looking for disconnected files; check reference counts */ if (preen == 0) pwarn("** Phase 4 - Check Reference Counts\n"); pass4(); /* * 5: check and repair resource counts in cylinder groups */ if (preen == 0) pwarn("** Phase 5 - Check Cyl groups\n"); pass5(); /* * print out summary statistics */ n_ffree = sblock->fs_cstotal.cs_nffree; n_bfree = sblock->fs_cstotal.cs_nbfree; pwarn("%d files, %lld used, %lld free ", n_files, (long long)n_blks, (long long)(n_ffree + sblock->fs_frag * n_bfree)); printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", (long long)n_ffree, (long long)n_bfree, (long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize), (long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2) / (daddr_t)sblock->fs_dsize) % 10)); if (debug && (n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree)) printf("%d files missing\n", n_files); if (debug) { n_blks += sblock->fs_ncg * (cgdmin(sblock, 0) - cgsblock(sblock, 0)); n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0); n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize); if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree)) printf("%lld blocks missing\n", (long long)n_blks); if (duplist != NULL) { printf("The following duplicate blocks remain:"); for (dp = duplist; dp; dp = dp->next) printf(" %lld,", (long long)dp->dup); printf("\n"); } if (zlnhead != NULL) { printf("The following zero link count inodes remain:"); for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) printf(" %u,", zlnp->zlncnt); printf("\n"); } } zlnhead = (struct zlncnt *)0; duplist = (struct dups *)0; muldup = (struct dups *)0; inocleanup(); if (fsmodified) { sblock->fs_time = time(NULL); sbdirty(); } if (rerun) markclean = 0; #if LITE2BORKEN if (!hotroot()) { ckfini(); } else { struct statvfs stfs_buf; /* * Check to see if root is mounted read-write. */ if (statvfs("/", &stfs_buf) == 0) flags = stfs_buf.f_flag; else flags = 0; if (markclean) markclean = flags & MNT_RDONLY; ckfini(); } #else ckfini(); #endif for (cylno = 0; cylno < sblock->fs_ncg; cylno++) if (inostathead[cylno].il_stat != NULL) free(inostathead[cylno].il_stat); free(inostathead); inostathead = NULL; if (!fsmodified) return (0); if (!preen) pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); if (rerun) pwarn("\n***** PLEASE RERUN FSCK *****\n"); if (hotroot()) { struct statvfs stfs_buf; /* * We modified the root. Do a mount update on * it, unless it is read-write, so we can continue. */ if (statvfs("/", &stfs_buf) == 0) { long flags = stfs_buf.f_flag; struct ufs_args args; int ret; if (flags & MNT_RDONLY) { args.fspec = 0; args.export.ex_flags = 0; args.export.ex_root = 0; flags |= MNT_UPDATE | MNT_RELOAD; ret = mount(MOUNT_FFS, "/", flags, &args); if (ret == 0) return(0); } } if (!preen) pwarn("\n***** REBOOT NOW *****\n"); sync(); return (4); } return (0); } static void usage() { (void) fprintf(stderr, "usage: %s [-adFfnpqy] [-B be|le] [-b block] [-c level] [-m mode]" " filesystem ...\n", getprogname()); exit(1); }