11de7b4b8SPedro F. Giffuni /*- 21de7b4b8SPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 31de7b4b8SPedro F. Giffuni * 40121b42aSDavid E. O'Brien * Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank 50121b42aSDavid E. O'Brien * Copyright (c) 1995 Martin Husemann 60121b42aSDavid E. O'Brien * 70121b42aSDavid E. O'Brien * Redistribution and use in source and binary forms, with or without 80121b42aSDavid E. O'Brien * modification, are permitted provided that the following conditions 90121b42aSDavid E. O'Brien * are met: 100121b42aSDavid E. O'Brien * 1. Redistributions of source code must retain the above copyright 110121b42aSDavid E. O'Brien * notice, this list of conditions and the following disclaimer. 120121b42aSDavid E. O'Brien * 2. Redistributions in binary form must reproduce the above copyright 130121b42aSDavid E. O'Brien * notice, this list of conditions and the following disclaimer in the 140121b42aSDavid E. O'Brien * documentation and/or other materials provided with the distribution. 150121b42aSDavid E. O'Brien * 160121b42aSDavid E. O'Brien * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 170121b42aSDavid E. O'Brien * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 180121b42aSDavid E. O'Brien * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 190121b42aSDavid E. O'Brien * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 200121b42aSDavid E. O'Brien * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 210121b42aSDavid E. O'Brien * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 220121b42aSDavid E. O'Brien * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 230121b42aSDavid E. O'Brien * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 240121b42aSDavid E. O'Brien * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 250121b42aSDavid E. O'Brien * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 260121b42aSDavid E. O'Brien */ 270121b42aSDavid E. O'Brien 280121b42aSDavid E. O'Brien 290121b42aSDavid E. O'Brien #include <sys/cdefs.h> 300121b42aSDavid E. O'Brien #ifndef lint 316cf357bcSUlrich Spörlein __RCSID("$NetBSD: check.c,v 1.14 2006/06/05 16:51:18 christos Exp $"); 320121b42aSDavid E. O'Brien static const char rcsid[] = 330121b42aSDavid E. O'Brien "$FreeBSD$"; 340121b42aSDavid E. O'Brien #endif /* not lint */ 350121b42aSDavid E. O'Brien 360121b42aSDavid E. O'Brien #include <stdlib.h> 370121b42aSDavid E. O'Brien #include <string.h> 380121b42aSDavid E. O'Brien #include <stdio.h> 390121b42aSDavid E. O'Brien #include <unistd.h> 400121b42aSDavid E. O'Brien #include <fcntl.h> 410121b42aSDavid E. O'Brien 420121b42aSDavid E. O'Brien #include "ext.h" 430121b42aSDavid E. O'Brien #include "fsutil.h" 440121b42aSDavid E. O'Brien 450121b42aSDavid E. O'Brien int 46565e3e65STom Rhodes checkfilesys(const char *fname) 470121b42aSDavid E. O'Brien { 480121b42aSDavid E. O'Brien int dosfs; 490121b42aSDavid E. O'Brien struct bootblock boot; 50*9708ba9fSXin LI struct fat_descriptor *fat = NULL; 516069db97SKonstantin Belousov int finish_dosdirsection=0; 520121b42aSDavid E. O'Brien int mod = 0; 530121b42aSDavid E. O'Brien int ret = 8; 540121b42aSDavid E. O'Brien 550121b42aSDavid E. O'Brien rdonly = alwaysno; 560121b42aSDavid E. O'Brien if (!preen) 570121b42aSDavid E. O'Brien printf("** %s", fname); 580121b42aSDavid E. O'Brien 590121b42aSDavid E. O'Brien dosfs = open(fname, rdonly ? O_RDONLY : O_RDWR, 0); 600121b42aSDavid E. O'Brien if (dosfs < 0 && !rdonly) { 610121b42aSDavid E. O'Brien dosfs = open(fname, O_RDONLY, 0); 620121b42aSDavid E. O'Brien if (dosfs >= 0) 630121b42aSDavid E. O'Brien pwarn(" (NO WRITE)\n"); 640121b42aSDavid E. O'Brien else if (!preen) 650121b42aSDavid E. O'Brien printf("\n"); 660121b42aSDavid E. O'Brien rdonly = 1; 670121b42aSDavid E. O'Brien } else if (!preen) 680121b42aSDavid E. O'Brien printf("\n"); 690121b42aSDavid E. O'Brien 700121b42aSDavid E. O'Brien if (dosfs < 0) { 716cf357bcSUlrich Spörlein perr("Can't open `%s'", fname); 722923ae8aSJaakko Heinonen printf("\n"); 730121b42aSDavid E. O'Brien return 8; 740121b42aSDavid E. O'Brien } 750121b42aSDavid E. O'Brien 763e855e9cSXin LI if (readboot(dosfs, &boot) == FSFATAL) { 770121b42aSDavid E. O'Brien close(dosfs); 780121b42aSDavid E. O'Brien printf("\n"); 790121b42aSDavid E. O'Brien return 8; 800121b42aSDavid E. O'Brien } 810121b42aSDavid E. O'Brien 82ae62d940SBruce Evans if (skipclean && preen && checkdirty(dosfs, &boot)) { 83f7bf3122SBruce Evans printf("%s: ", fname); 84cede1f56STom Rhodes printf("FILESYSTEM CLEAN; SKIPPING CHECKS\n"); 85cede1f56STom Rhodes ret = 0; 86cede1f56STom Rhodes goto out; 87cede1f56STom Rhodes } 88cede1f56STom Rhodes 890121b42aSDavid E. O'Brien if (!preen) { 90*9708ba9fSXin LI printf("** Phase 1 - Read FAT and checking connectivity\n"); 910121b42aSDavid E. O'Brien } 920121b42aSDavid E. O'Brien 93*9708ba9fSXin LI mod |= readfat(dosfs, &boot, &fat); 940121b42aSDavid E. O'Brien if (mod & FSFATAL) { 950121b42aSDavid E. O'Brien close(dosfs); 960121b42aSDavid E. O'Brien return 8; 970121b42aSDavid E. O'Brien } 980121b42aSDavid E. O'Brien 9973db93b8SXin LI if (!preen) 100*9708ba9fSXin LI printf("** Phase 2 - Checking Directories\n"); 10173db93b8SXin LI 102*9708ba9fSXin LI mod |= resetDosDirSection(fat); 1030121b42aSDavid E. O'Brien finish_dosdirsection = 1; 1040121b42aSDavid E. O'Brien if (mod & FSFATAL) 1050121b42aSDavid E. O'Brien goto out; 1060121b42aSDavid E. O'Brien /* delay writing FATs */ 1070121b42aSDavid E. O'Brien 108*9708ba9fSXin LI mod |= handleDirTree(fat); 1090121b42aSDavid E. O'Brien if (mod & FSFATAL) 1100121b42aSDavid E. O'Brien goto out; 1110121b42aSDavid E. O'Brien 1120121b42aSDavid E. O'Brien if (!preen) 113*9708ba9fSXin LI printf("** Phase 3 - Checking for Lost Files\n"); 1140121b42aSDavid E. O'Brien 115*9708ba9fSXin LI mod |= checklost(fat); 1160121b42aSDavid E. O'Brien if (mod & FSFATAL) 1170121b42aSDavid E. O'Brien goto out; 1180121b42aSDavid E. O'Brien 1190121b42aSDavid E. O'Brien /* now write the FATs */ 120*9708ba9fSXin LI if (mod & FSFATMOD) { 1210121b42aSDavid E. O'Brien if (ask(1, "Update FATs")) { 122*9708ba9fSXin LI mod |= writefat(fat); 1230121b42aSDavid E. O'Brien if (mod & FSFATAL) 1240121b42aSDavid E. O'Brien goto out; 1250121b42aSDavid E. O'Brien } else 1260121b42aSDavid E. O'Brien mod |= FSERROR; 1270121b42aSDavid E. O'Brien } 1280121b42aSDavid E. O'Brien 1290121b42aSDavid E. O'Brien if (boot.NumBad) 1300121b42aSDavid E. O'Brien pwarn("%d files, %d free (%d clusters), %d bad (%d clusters)\n", 1310121b42aSDavid E. O'Brien boot.NumFiles, 1320121b42aSDavid E. O'Brien boot.NumFree * boot.ClusterSize / 1024, boot.NumFree, 1330121b42aSDavid E. O'Brien boot.NumBad * boot.ClusterSize / 1024, boot.NumBad); 1340121b42aSDavid E. O'Brien else 1350121b42aSDavid E. O'Brien pwarn("%d files, %d free (%d clusters)\n", 1360121b42aSDavid E. O'Brien boot.NumFiles, 1370121b42aSDavid E. O'Brien boot.NumFree * boot.ClusterSize / 1024, boot.NumFree); 1380121b42aSDavid E. O'Brien 1390121b42aSDavid E. O'Brien if (mod && (mod & FSERROR) == 0) { 1400121b42aSDavid E. O'Brien if (mod & FSDIRTY) { 1410121b42aSDavid E. O'Brien if (ask(1, "MARK FILE SYSTEM CLEAN") == 0) 1420121b42aSDavid E. O'Brien mod &= ~FSDIRTY; 1430121b42aSDavid E. O'Brien 1440121b42aSDavid E. O'Brien if (mod & FSDIRTY) { 1450121b42aSDavid E. O'Brien pwarn("MARKING FILE SYSTEM CLEAN\n"); 146*9708ba9fSXin LI mod |= writefat(fat); 1470121b42aSDavid E. O'Brien } else { 1480121b42aSDavid E. O'Brien pwarn("\n***** FILE SYSTEM IS LEFT MARKED AS DIRTY *****\n"); 1490121b42aSDavid E. O'Brien mod |= FSERROR; /* file system not clean */ 1500121b42aSDavid E. O'Brien } 1510121b42aSDavid E. O'Brien } 1520121b42aSDavid E. O'Brien } 1530121b42aSDavid E. O'Brien 1540121b42aSDavid E. O'Brien if (mod & (FSFATAL | FSERROR)) 1550121b42aSDavid E. O'Brien goto out; 1560121b42aSDavid E. O'Brien 1570121b42aSDavid E. O'Brien ret = 0; 1580121b42aSDavid E. O'Brien 1590121b42aSDavid E. O'Brien out: 1600121b42aSDavid E. O'Brien if (finish_dosdirsection) 1610121b42aSDavid E. O'Brien finishDosDirSection(); 1620121b42aSDavid E. O'Brien free(fat); 1630121b42aSDavid E. O'Brien close(dosfs); 1640121b42aSDavid E. O'Brien 1650121b42aSDavid E. O'Brien if (mod & (FSFATMOD|FSDIRMOD)) 1660121b42aSDavid E. O'Brien pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 1670121b42aSDavid E. O'Brien 1680121b42aSDavid E. O'Brien return ret; 1690121b42aSDavid E. O'Brien } 170