main.c revision 1.32
1 /* $NetBSD: main.c,v 1.32 2008/10/12 20:49:43 wiz Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1997 Manuel Bouyer. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by Manuel Bouyer. 46 * 4. The name of the author may not be used to endorse or promote products 47 * derived from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 52 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 58 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 #ifndef lint 63 __COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1993\ 64 The Regents of the University of California. All rights reserved."); 65 #endif /* not lint */ 66 67 #ifndef lint 68 #if 0 69 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 1/23/94"; 70 #else 71 __RCSID("$NetBSD: main.c,v 1.32 2008/10/12 20:49:43 wiz Exp $"); 72 #endif 73 #endif /* not lint */ 74 75 #include <sys/param.h> 76 #include <sys/time.h> 77 #include <sys/mount.h> 78 #include <ufs/ufs/ufsmount.h> 79 #include <ufs/ext2fs/ext2fs_dinode.h> 80 #include <ufs/ext2fs/ext2fs.h> 81 #include <fstab.h> 82 #include <stdlib.h> 83 #include <string.h> 84 #include <ctype.h> 85 #include <stdio.h> 86 #include <time.h> 87 #include <unistd.h> 88 #include <signal.h> 89 90 #include "fsck.h" 91 #include "extern.h" 92 #include "fsutil.h" 93 #include "exitvalues.h" 94 95 int returntosingle = 0; 96 97 98 static int argtoi(int, const char *, const char *, int); 99 static int checkfilesys(const char *, char *, long, int); 100 static void usage(void) __dead; 101 102 int 103 main(int argc, char *argv[]) 104 { 105 int ch; 106 int ret = FSCK_EXIT_OK; 107 108 sync(); 109 skipclean = 1; 110 while ((ch = getopt(argc, argv, "b:dfm:npqUy")) != -1) { 111 switch (ch) { 112 case 'b': 113 skipclean = 0; 114 bflag = argtoi('b', "number", optarg, 10); 115 printf("Alternate super block location: %d\n", bflag); 116 break; 117 118 case 'd': 119 debug++; 120 break; 121 122 case 'f': 123 skipclean = 0; 124 break; 125 126 case 'm': 127 lfmode = argtoi('m', "mode", optarg, 8); 128 if (lfmode &~ 07777) 129 errexit("bad mode to -m: %o", lfmode); 130 printf("** lost+found creation mode %o\n", lfmode); 131 break; 132 133 case 'n': 134 nflag++; 135 yflag = 0; 136 break; 137 138 case 'p': 139 preen++; 140 break; 141 142 case 'P': 143 /* Progress meter not implemented. */ 144 break; 145 146 case 'q': /* Quiet not implemented */ 147 break; 148 149 #ifndef SMALL 150 case 'U': 151 Uflag++; 152 break; 153 #endif 154 155 case 'y': 156 yflag++; 157 nflag = 0; 158 break; 159 160 default: 161 usage(); 162 } 163 } 164 165 argc -= optind; 166 argv += optind; 167 168 if (!argc) 169 usage(); 170 171 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 172 (void)signal(SIGINT, catch); 173 if (preen) 174 (void)signal(SIGQUIT, catchquit); 175 176 while (argc-- > 0) { 177 int nret = checkfilesys(blockcheck(*argv++), 0, 0L, 0); 178 if (ret < nret) 179 ret = nret; 180 } 181 182 return returntosingle ? FSCK_EXIT_UNRESOLVED : ret; 183 } 184 185 static int 186 argtoi(int flag, const char *req, const char *str, int base) 187 { 188 char *cp; 189 int ret; 190 191 ret = (int)strtol(str, &cp, base); 192 if (cp == str || *cp) 193 errexit("-%c flag requires a %s", flag, req); 194 return (ret); 195 } 196 197 /* 198 * Check the specified filesystem. 199 */ 200 /* ARGSUSED */ 201 static int 202 checkfilesys(const char *filesys, char *mntpt, long auxdata, int child) 203 { 204 daddr_t n_bfree; 205 struct dups *dp; 206 struct zlncnt *zlnp; 207 int i; 208 209 if (preen && child) 210 (void)signal(SIGQUIT, voidquit); 211 setcdevname(filesys, preen); 212 if (debug && preen) 213 pwarn("starting\n"); 214 switch (setup(filesys)) { 215 case 0: 216 if (preen) 217 pfatal("CAN'T CHECK FILE SYSTEM."); 218 case -1: 219 return FSCK_EXIT_OK; 220 } 221 /* 222 * 1: scan inodes tallying blocks used 223 */ 224 if (preen == 0) { 225 if (sblock.e2fs.e2fs_rev > E2FS_REV0) { 226 printf("** Last Mounted on %s\n", 227 sblock.e2fs.e2fs_fsmnt); 228 } 229 if (hotroot()) 230 printf("** Root file system\n"); 231 printf("** Phase 1 - Check Blocks and Sizes\n"); 232 } 233 pass1(); 234 235 /* 236 * 1b: locate first references to duplicates, if any 237 */ 238 if (duplist) { 239 if (preen) 240 pfatal("INTERNAL ERROR: dups with -p"); 241 printf("** Phase 1b - Rescan For More DUPS\n"); 242 pass1b(); 243 } 244 245 /* 246 * 2: traverse directories from root to mark all connected directories 247 */ 248 if (preen == 0) 249 printf("** Phase 2 - Check Pathnames\n"); 250 pass2(); 251 252 /* 253 * 3: scan inodes looking for disconnected directories 254 */ 255 if (preen == 0) 256 printf("** Phase 3 - Check Connectivity\n"); 257 pass3(); 258 259 /* 260 * 4: scan inodes looking for disconnected files; check reference counts 261 */ 262 if (preen == 0) 263 printf("** Phase 4 - Check Reference Counts\n"); 264 pass4(); 265 266 /* 267 * 5: check and repair resource counts in cylinder groups 268 */ 269 if (preen == 0) 270 printf("** Phase 5 - Check Cyl groups\n"); 271 pass5(); 272 273 /* 274 * print out summary statistics 275 */ 276 n_bfree = sblock.e2fs.e2fs_fbcount; 277 278 pwarn("%lld files, %lld used, %lld free\n", 279 (long long)n_files, (long long)n_blks, (long long)n_bfree); 280 if (debug && 281 /* 9 reserved and unused inodes in FS */ 282 (n_files -= maxino - 9 - sblock.e2fs.e2fs_ficount)) 283 printf("%lld files missing\n", (long long)n_files); 284 if (debug) { 285 for (i = 0; i < sblock.e2fs_ncg; i++) 286 n_blks += cgoverhead(i); 287 n_blks += sblock.e2fs.e2fs_first_dblock; 288 if (n_blks -= maxfsblock - n_bfree) 289 printf("%lld blocks missing\n", (long long)n_blks); 290 if (duplist != NULL) { 291 printf("The following duplicate blocks remain:"); 292 for (dp = duplist; dp; dp = dp->next) 293 printf(" %lld,", (long long)dp->dup); 294 printf("\n"); 295 } 296 if (zlnhead != NULL) { 297 printf("The following zero link count inodes remain:"); 298 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 299 printf(" %llu,", 300 (unsigned long long)zlnp->zlncnt); 301 printf("\n"); 302 } 303 } 304 zlnhead = (struct zlncnt *)0; 305 duplist = (struct dups *)0; 306 muldup = (struct dups *)0; 307 inocleanup(); 308 if (fsmodified) { 309 time_t t; 310 (void)time(&t); 311 sblock.e2fs.e2fs_wtime = t; 312 sblock.e2fs.e2fs_lastfsck = t; 313 sbdirty(); 314 } 315 ckfini(1); 316 free(blockmap); 317 free(statemap); 318 free((char *)lncntp); 319 if (!fsmodified) 320 return FSCK_EXIT_OK; 321 if (!preen) 322 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 323 if (rerun) 324 printf("\n***** PLEASE RERUN FSCK *****\n"); 325 if (hotroot()) { 326 struct statvfs stfs_buf; 327 /* 328 * We modified the root. Do a mount update on 329 * it, unless it is read-write, so we can continue. 330 */ 331 if (statvfs("/", &stfs_buf) == 0) { 332 long flags = stfs_buf.f_flag; 333 struct ufs_args args; 334 335 if (flags & MNT_RDONLY) { 336 args.fspec = 0; 337 flags |= MNT_UPDATE | MNT_RELOAD; 338 if (mount(MOUNT_EXT2FS, "/", flags, 339 &args, sizeof args) == 0) 340 return FSCK_EXIT_OK; 341 } 342 } 343 if (!preen) 344 printf("\n***** REBOOT NOW *****\n"); 345 sync(); 346 return FSCK_EXIT_ROOT_CHANGED; 347 } 348 return FSCK_EXIT_OK; 349 } 350 351 static void 352 usage(void) 353 { 354 355 (void) fprintf(stderr, 356 "usage: %s [-dfnpUy] [-b block] [-c level] [-m mode] filesystem ...\n", 357 getprogname()); 358 exit(FSCK_EXIT_USAGE); 359 } 360 361
Indexes created Sun Sep 28 07:09:56 GMT 2025