| /*- |
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD |
| * |
| * Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank |
| * Copyright (c) 1995 Martin Husemann |
| * |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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 <sys/cdefs.h> |
| #ifndef lint |
| __RCSID("$NetBSD: check.c,v 1.14 2006/06/05 16:51:18 christos Exp $"); |
| static const char rcsid[] = |
| "$FreeBSD$"; |
| #endif /* not lint */ |
| |
| #ifdef HAVE_LIBUTIL_H |
| #include <libutil.h> |
| #endif |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "ext.h" |
| #include "fsutil.h" |
| |
| int |
| checkfilesys(const char *fname) |
| { |
| int dosfs; |
| struct bootblock boot; |
| struct fat_descriptor *fat = NULL; |
| int finish_dosdirsection=0; |
| int mod = 0; |
| int ret = 8; |
| int64_t freebytes; |
| int64_t badbytes; |
| |
| rdonly = alwaysno; |
| if (!preen) |
| printf("** %s", fname); |
| |
| dosfs = open(fname, rdonly ? O_RDONLY : O_RDWR, 0); |
| if (dosfs < 0 && !rdonly) { |
| dosfs = open(fname, O_RDONLY, 0); |
| if (dosfs >= 0) |
| pwarn(" (NO WRITE)\n"); |
| else if (!preen) |
| printf("\n"); |
| rdonly = 1; |
| } else if (!preen) |
| printf("\n"); |
| |
| if (dosfs < 0) { |
| perr("Can't open `%s'", fname); |
| printf("\n"); |
| return 8; |
| } |
| |
| if (readboot(dosfs, &boot) == FSFATAL) { |
| close(dosfs); |
| printf("\n"); |
| return 8; |
| } |
| |
| if (skipclean && preen && checkdirty(dosfs, &boot)) { |
| printf("%s: ", fname); |
| printf("FILESYSTEM CLEAN; SKIPPING CHECKS\n"); |
| ret = 0; |
| goto out; |
| } |
| |
| if (!preen) { |
| printf("** Phase 1 - Read FAT and checking connectivity\n"); |
| } |
| |
| mod |= readfat(dosfs, &boot, &fat); |
| if (mod & FSFATAL) { |
| close(dosfs); |
| return 8; |
| } |
| |
| if (!preen) |
| printf("** Phase 2 - Checking Directories\n"); |
| |
| mod |= resetDosDirSection(fat); |
| finish_dosdirsection = 1; |
| if (mod & FSFATAL) |
| goto out; |
| /* delay writing FATs */ |
| |
| mod |= handleDirTree(fat); |
| if (mod & FSFATAL) |
| goto out; |
| |
| if (!preen) |
| printf("** Phase 3 - Checking for Lost Files\n"); |
| |
| mod |= checklost(fat); |
| if (mod & FSFATAL) |
| goto out; |
| |
| /* now write the FATs */ |
| if (mod & FSFATMOD) { |
| if (ask(1, "Update FATs")) { |
| mod |= writefat(fat); |
| if (mod & FSFATAL) |
| goto out; |
| } else |
| mod |= FSERROR; |
| } |
| |
| freebytes = (int64_t)boot.NumFree * boot.ClusterSize; |
| badbytes = (int64_t)boot.NumBad * boot.ClusterSize; |
| |
| #ifdef HAVE_LIBUTIL_H |
| char freestr[7], badstr[7]; |
| |
| humanize_number(freestr, sizeof(freestr), freebytes, "", |
| HN_AUTOSCALE, HN_DECIMAL | HN_IEC_PREFIXES); |
| if (boot.NumBad) { |
| humanize_number(badstr, sizeof(badstr), badbytes, "", |
| HN_AUTOSCALE, HN_B | HN_DECIMAL | HN_IEC_PREFIXES); |
| |
| pwarn("%d files, %sB free (%d clusters), %sB bad (%d clusters)\n", |
| boot.NumFiles, freestr, boot.NumFree, |
| badstr, boot.NumBad); |
| } else { |
| pwarn("%d files, %sB free (%d clusters)\n", |
| boot.NumFiles, freestr, boot.NumFree); |
| } |
| #else |
| if (boot.NumBad) |
| pwarn("%d files, %jd KiB free (%d clusters), %jd KiB bad (%d clusters)\n", |
| boot.NumFiles, (intmax_t)freebytes / 1024, boot.NumFree, |
| (intmax_t)badbytes / 1024, boot.NumBad); |
| else |
| pwarn("%d files, %jd KiB free (%d clusters)\n", |
| boot.NumFiles, (intmax_t)freebytes / 1024, boot.NumFree); |
| #endif |
| |
| if (mod && (mod & FSERROR) == 0) { |
| if (mod & FSDIRTY) { |
| if (ask(1, "MARK FILE SYSTEM CLEAN") == 0) |
| mod &= ~FSDIRTY; |
| |
| if (mod & FSDIRTY) { |
| pwarn("MARKING FILE SYSTEM CLEAN\n"); |
| mod |= cleardirty(fat); |
| } else { |
| pwarn("\n***** FILE SYSTEM IS LEFT MARKED AS DIRTY *****\n"); |
| mod |= FSERROR; /* file system not clean */ |
| } |
| } |
| } |
| |
| if (mod & (FSFATAL | FSERROR)) |
| goto out; |
| |
| ret = 0; |
| |
| out: |
| if (finish_dosdirsection) |
| finishDosDirSection(); |
| free(fat); |
| close(dosfs); |
| |
| if (mod & (FSFATMOD|FSDIRMOD)){ |
| pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); |
| return 4; |
| } |
| |
| return ret; |
| } |