/* * Copyright (c) 1980, 1986, 1993 * The Regents of the University of California. All rights reserved. * * %sccs.include.redist.c% */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1980, 1986, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 04/27/95"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include "fsck.h" int returntosingle; static int argtoi __P((int flag, char *req, char *str, int base)); static int docheck __P((struct fstab *fsp)); static int checkfilesys __P((char *filesys, char *mntpt, long auxdata, int child)); void main __P((int argc, char *argv[])); void main(argc, argv) int argc; char *argv[]; { int ch; int ret, maxrun = 0; extern char *optarg; extern int optind; sync(); while ((ch = getopt(argc, argv, "dpnNyYb:c:l:m:")) != EOF) { switch (ch) { case 'p': preen++; break; case 'b': bflag = argtoi('b', "number", optarg, 10); printf("Alternate super block location: %d\n", bflag); break; case 'c': cvtlevel = argtoi('c', "conversion level", optarg, 10); break; case 'd': debug++; break; case 'l': maxrun = argtoi('l', "number", optarg, 10); 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': case 'N': nflag++; yflag = 0; break; case 'y': case 'Y': yflag++; nflag = 0; break; default: errx(EEXIT, "%c option?", ch); } } argc -= optind; argv += optind; if (signal(SIGINT, SIG_IGN) != SIG_IGN) (void)signal(SIGINT, catch); if (preen) (void)signal(SIGQUIT, catchquit); if (argc) { while (argc-- > 0) (void)checkfilesys(blockcheck(*argv++), 0, 0L, 0); exit(0); } ret = checkfstab(preen, maxrun, docheck, checkfilesys); if (returntosingle) exit(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); } /* * Determine whether a filesystem should be checked. */ static int docheck(fsp) register struct fstab *fsp; { if (strcmp(fsp->fs_vfstype, "ufs") || (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 */ static int checkfilesys(filesys, mntpt, auxdata, child) char *filesys, *mntpt; long auxdata; int child; { ufs_daddr_t n_ffree, n_bfree; struct dups *dp; struct zlncnt *zlnp; int cylno; if (preen && child) (void)signal(SIGQUIT, voidquit); cdevname = filesys; if (debug && preen) pwarn("starting\n"); if (setup(filesys) == 0) { if (preen) pfatal("CAN'T CHECK FILE SYSTEM."); return (0); } /* * 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) 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("%ld files, %ld used, %ld free ", n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree); printf("(%ld frags, %ld 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("%ld 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("%ld blocks missing\n", n_blks); if (duplist != NULL) { printf("The following duplicate blocks remain:"); for (dp = duplist; dp; dp = dp->next) printf(" %ld,", dp->dup); printf("\n"); } if (zlnhead != NULL) { printf("The following zero link count inodes remain:"); for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) printf(" %lu,", zlnp->zlncnt); printf("\n"); } } zlnhead = (struct zlncnt *)0; duplist = (struct dups *)0; muldup = (struct dups *)0; 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); } ckfini(); free(blockmap); free(statemap); free((char *)lncntp); if (!fsmodified) return (0); if (!preen) printf("\n***** FILE SYSTEM WAS MODIFIED *****\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.ex_flags = 0; args.export.ex_root = 0; flags |= MNT_UPDATE | MNT_RELOAD; ret = mount("ufs", "/", flags, &args); if (ret == 0) return(0); } } if (!preen) printf("\n***** REBOOT NOW *****\n"); sync(); return (4); } return (0); }