/* $OpenBSD: main.c,v 1.25 2003/06/02 20:06:15 millert Exp $ */ /* $NetBSD: main.c,v 1.22 1996/10/11 20:15:48 thorpej 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. */ #ifndef lint static const char 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 8.2 (Berkeley) 1/23/94"; #else static const char rcsid[] = "$OpenBSD: main.c,v 1.25 2003/06/02 20:06:15 millert Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include "fsck.h" #include "extern.h" #include "fsutil.h" volatile sig_atomic_t returntosingle; int argtoi(int, char *, char *, int); int checkfilesys(char *, char *, long, int); int docheck(struct fstab *); int main(int, char *[]); extern char *__progname; int main(int argc, char *argv[]) { int ch; int ret = 0; sync(); skipclean = 1; while ((ch = getopt(argc, argv, "dfpnNyYb:c:l:m:")) != -1) { switch (ch) { case 'p': preen++; 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); break; case 'd': debug++; break; case 'f': skipclean = 0; break; case 'm': lfmode = argtoi('m', "mode", optarg, 8); if (lfmode &~ 07777) errexit("bad mode to -m: %o\n", lfmode); printf("** lost+found creation mode %o\n", lfmode); break; case 'n': case 'N': nflag++; yflag = 0; break; case 'y': case 'Y': yflag++; nflag = 0; break; default: errexit("usage: %s -p [-f] [-m mode]\n %s [-f] [-b block#] [-c level] [-y] [-n] [-m mode] [filesystem] ...\n", __progname, __progname); } } argc -= optind; argv += optind; if (signal(SIGINT, SIG_IGN) != SIG_IGN) (void)signal(SIGINT, catch); if (preen) (void)signal(SIGQUIT, catchquit); (void)signal(SIGINFO, catchinfo); if (argc) while (argc-- > 0) (void)checkfilesys(blockcheck(*argv++), 0, 0L, 0); if (returntosingle) ret = 2; exit(ret); } int argtoi(int flag, char *req, char *str, int base) { char *cp; int ret; ret = (int)strtol(str, &cp, base); if (cp == str || *cp) errexit("-%c flag requires a %s\n", flag, req); return (ret); } /* * Determine whether a filesystem should be checked. */ int docheck(struct fstab *fsp) { if ((strcmp(fsp->fs_vfstype, "ufs") && strcmp(fsp->fs_vfstype, "ffs")) || (strcmp(fsp->fs_type, FSTAB_RW) && strcmp(fsp->fs_type, FSTAB_RO)) || fsp->fs_passno == 0) return (0); return (1); } /* * Check the specified filesystem. */ /* ARGSUSED */ int checkfilesys(char *filesys, char *mntpt, long auxdata, int child) { daddr_t n_ffree, n_bfree; struct dups *dp; struct zlncnt *zlnp; int cylno; 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."); case -1: return (0); } info_filesys = filesys; /* * 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) { printf("** Last Mounted on %s\n", sblock.fs_fsmnt); if (hotroot()) printf("** Root file system\n"); printf("** Phase 1 - Check Blocks and Sizes\n"); } pass1(); /* * 1b: locate first references to duplicates, if any */ if (duplist) { if (preen || usedsoftdep) pfatal("INTERNAL ERROR: dups with -p"); printf("** Phase 1b - Rescan For More DUPS\n"); pass1b(); } /* * 2: traverse directories from root to mark all connected directories */ if (preen == 0) printf("** Phase 2 - Check Pathnames\n"); pass2(); /* * 3: scan inodes looking for disconnected directories */ if (preen == 0) printf("** Phase 3 - Check Connectivity\n"); pass3(); /* * 4: scan inodes looking for disconnected files; check reference counts */ if (preen == 0) printf("** Phase 4 - Check Reference Counts\n"); pass4(); /* * 5: check and repair resource counts in cylinder groups */ if (preen == 0) printf("** 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, %d used, %d free ", n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree); printf("(%d frags, %d blocks, %d.%d%% fragmentation)\n", n_ffree, n_bfree, (n_ffree * 100) / sblock.fs_dsize, ((n_ffree * 1000 + sblock.fs_dsize / 2) / 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("%d blocks missing\n", n_blks); if (duplist != NULL) { printf("The following duplicate blocks remain:"); for (dp = duplist; dp; dp = dp->next) printf(" %d,", 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 = NULL; duplist = NULL; muldup = NULL; inocleanup(); if (fsmodified) { (void)time(&sblock.fs_time); sbdirty(); } if (cvtlevel && sblk.b_dirty) { /* * Write out the duplicate super blocks */ for (cylno = 0; cylno < sblock.fs_ncg; cylno++) bwrite(fswritefd, (char *)&sblock, fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE); } if (rerun) resolved = 0; ckfini(resolved); /* Don't mark fs clean if fsck needs to be re-run */ free(blockmap); blockmap = NULL; free(statemap); statemap = NULL; free(lncntp); lncntp = NULL; if (!fsmodified) return (0); if (!preen) printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); if (rerun || !resolved) printf("\n***** PLEASE RERUN FSCK *****\n"); if (hotroot()) { struct statfs stfs_buf; /* * We modified the root. Do a mount update on * it, unless it is read-write, so we can continue. */ if (statfs("/", &stfs_buf) == 0) { long flags = stfs_buf.f_flags; struct ufs_args args; int ret; if (flags & MNT_RDONLY) { args.fspec = 0; args.export_info.ex_flags = 0; args.export_info.ex_root = 0; flags |= MNT_UPDATE | MNT_RELOAD; ret = mount(MOUNT_FFS, "/", flags, &args); if (ret == 0) return(0); } } if (!preen) printf("\n***** REBOOT NOW *****\n"); sync(); return (4); } return (0); }