2 * Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank
3 * Copyright (c) 1995 Martin Husemann
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
29 __RCSID("$NetBSD: check.c,v 1.10 2000/04/25 23:02:51 jdolecek Exp $");
30 static const char rcsid[] =
44 checkfilesys(const char *fname)
47 struct bootblock boot;
48 struct fatEntry *fat = NULL;
49 int finish_dosdirsection=0;
56 printf("** %s", fname);
58 dosfs = open(fname, rdonly ? O_RDONLY : O_RDWR, 0);
59 if (dosfs < 0 && !rdonly) {
60 dosfs = open(fname, O_RDONLY, 0);
62 pwarn(" (NO WRITE)\n");
75 if (readboot(dosfs, &boot) != FSOK) {
81 if (skipclean && preen && checkdirty(dosfs, &boot)) {
82 printf("%s: ", fname);
83 printf("FILESYSTEM CLEAN; SKIPPING CHECKS\n");
89 if (boot.ValidFat < 0)
90 printf("** Phase 1 - Read and Compare FATs\n");
92 printf("** Phase 1 - Read FAT\n");
95 mod |= readfat(dosfs, &boot, boot.ValidFat >= 0 ? boot.ValidFat : 0, &fat);
101 if (boot.ValidFat < 0)
102 for (i = 1; i < boot.bpbFATs; i++) {
103 struct fatEntry *currentFat;
105 mod |= readfat(dosfs, &boot, i, ¤tFat);
110 mod |= comparefat(&boot, fat, currentFat, i);
117 printf("** Phase 2 - Check Cluster Chains\n");
119 mod |= checkfat(&boot, fat);
122 /* delay writing FATs */
125 printf("** Phase 3 - Checking Directories\n");
127 mod |= resetDosDirSection(&boot, fat);
128 finish_dosdirsection = 1;
131 /* delay writing FATs */
133 mod |= handleDirTree(dosfs, &boot, fat);
138 printf("** Phase 4 - Checking for Lost Files\n");
140 mod |= checklost(dosfs, &boot, fat);
144 /* now write the FATs */
145 if (mod & (FSFATMOD|FSFIXFAT)) {
146 if (ask(1, "Update FATs")) {
147 mod |= writefat(dosfs, &boot, fat, mod & FSFIXFAT);
155 pwarn("%d files, %d free (%d clusters), %d bad (%d clusters)\n",
157 boot.NumFree * boot.ClusterSize / 1024, boot.NumFree,
158 boot.NumBad * boot.ClusterSize / 1024, boot.NumBad);
160 pwarn("%d files, %d free (%d clusters)\n",
162 boot.NumFree * boot.ClusterSize / 1024, boot.NumFree);
164 if (mod && (mod & FSERROR) == 0) {
166 if (ask(1, "MARK FILE SYSTEM CLEAN") == 0)
170 pwarn("MARKING FILE SYSTEM CLEAN\n");
171 mod |= writefat(dosfs, &boot, fat, 1);
173 pwarn("\n***** FILE SYSTEM IS LEFT MARKED AS DIRTY *****\n");
174 mod |= FSERROR; /* file system not clean */
179 if (mod & (FSFATAL | FSERROR))
185 if (finish_dosdirsection)
186 finishDosDirSection();
190 if (mod & (FSFATMOD|FSDIRMOD))
191 pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n");