main.c revision 1.62.2.1
1 /* $NetBSD: main.c,v 1.62.2.1 2009/03/24 21:33:59 bouyer 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 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 41 #else 42 __RCSID("$NetBSD: main.c,v 1.62.2.1 2009/03/24 21:33:59 bouyer Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 #include <sys/time.h> 48 #include <sys/mount.h> 49 #include <sys/resource.h> 50 51 #include <ufs/ufs/dinode.h> 52 #include <ufs/ufs/ufsmount.h> 53 #include <ufs/ffs/fs.h> 54 #include <ufs/ffs/ffs_extern.h> 55 56 #include <ctype.h> 57 #include <err.h> 58 #include <fstab.h> 59 #include <string.h> 60 #include <time.h> 61 #include <ctype.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <unistd.h> 65 66 #include "fsck.h" 67 #include "extern.h" 68 #include "fsutil.h" 69 70 int returntosingle; 71 int progress = 0; 72 73 static int argtoi(int, const char *, const char *, int); 74 static int checkfilesys(const char *, char *, long, int); 75 static void usage(void); 76 77 int 78 main(int argc, char *argv[]) 79 { 80 struct rlimit r; 81 int ch; 82 int ret = 0; 83 84 if (getrlimit(RLIMIT_DATA, &r) == 0) { 85 r.rlim_cur = r.rlim_max; 86 (void) setrlimit(RLIMIT_DATA, &r); 87 } 88 sync(); 89 skipclean = 1; 90 markclean = 1; 91 forceimage = 0; 92 endian = 0; 93 isappleufs = 0; 94 while ((ch = getopt(argc, argv, "aB:b:c:dFfm:npPqUy")) != -1) { 95 switch (ch) { 96 case 'a': 97 isappleufs = 1; 98 break; 99 100 case 'B': 101 if (strcmp(optarg, "be") == 0) 102 endian = BIG_ENDIAN; 103 else if (strcmp(optarg, "le") == 0) 104 endian = LITTLE_ENDIAN; 105 else usage(); 106 break; 107 108 case 'b': 109 skipclean = 0; 110 bflag = argtoi('b', "number", optarg, 10); 111 printf("Alternate super block location: %d\n", bflag); 112 break; 113 114 case 'c': 115 skipclean = 0; 116 cvtlevel = argtoi('c', "conversion level", optarg, 10); 117 if (cvtlevel > 4) { 118 cvtlevel = 4; 119 warnx("Using maximum conversion level of %d\n",cvtlevel); 120 } 121 break; 122 123 case 'd': 124 debug++; 125 break; 126 127 case 'F': 128 forceimage = 1; 129 break; 130 131 case 'f': 132 skipclean = 0; 133 break; 134 135 case 'm': 136 lfmode = argtoi('m', "mode", optarg, 8); 137 if (lfmode &~ 07777) 138 errx(EEXIT, "bad mode to -m: %o", lfmode); 139 printf("** lost+found creation mode %o\n", lfmode); 140 break; 141 142 case 'n': 143 nflag++; 144 yflag = 0; 145 break; 146 147 case 'p': 148 preen++; 149 break; 150 151 case 'P': 152 progress = 1; 153 break; 154 155 case 'q': 156 quiet++; 157 break; 158 #ifndef SMALL 159 case 'U': 160 Uflag++; 161 break; 162 #endif 163 164 case 'y': 165 yflag++; 166 nflag = 0; 167 break; 168 169 default: 170 usage(); 171 } 172 } 173 174 argc -= optind; 175 argv += optind; 176 177 if (!argc) 178 usage(); 179 180 if (debug) 181 progress = 0; 182 183 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 184 (void)signal(SIGINT, catch); 185 if (preen) 186 (void)signal(SIGQUIT, catchquit); 187 #ifdef PROGRESS 188 if (progress) { 189 progress_ttywidth(0); 190 (void)signal(SIGWINCH, progress_ttywidth); 191 } 192 #endif /* ! PROGRESS */ 193 signal(SIGINFO, infohandler); 194 195 while (argc-- > 0) { 196 const char *path = blockcheck(*argv); 197 198 if (path == NULL) 199 pfatal("Can't check %s\n", *argv); 200 else 201 (void)checkfilesys(blockcheck(*argv), 0, 0L, 0); 202 argv++; 203 } 204 205 if (returntosingle) 206 ret = 2; 207 208 exit(ret); 209 } 210 211 static int 212 argtoi(int flag, const char *req, const char *str, int base) 213 { 214 char *cp; 215 int ret; 216 217 ret = (int)strtol(str, &cp, base); 218 if (cp == str || *cp) 219 errx(EEXIT, "-%c flag requires a %s", flag, req); 220 return (ret); 221 } 222 223 /* 224 * Check the specified filesystem. 225 */ 226 /* ARGSUSED */ 227 static int 228 checkfilesys(const char *filesys, char *mntpt, long auxdata, int child) 229 { 230 daddr_t n_ffree, n_bfree; 231 struct dups *dp; 232 struct zlncnt *zlnp; 233 int cylno; 234 #ifdef LITE2BORKEN 235 int flags; 236 #endif 237 #ifdef PROGRESS 238 /* 239 * In prune mode, how far does the progress bar travel during 240 * each pass? (In non-prune mode, each pass has a separate 241 * progress bar that travels from 0 to 100%.) 242 * 243 * The numbers below are percentages, intended to correspond 244 * roughly to the cumulative time up to the end of each pass. 245 * They don't have to be accurate. In reality, on a large 246 * file system, Pass 1 and Pass 2 together are likely to use 247 * significantly more than the 95% reflected below, so users 248 * will get a pleasant surprise when the last 5% of the progress 249 * bar runs more quickly than they had expected. 250 */ 251 static int progress_limits[] = {0, 20, 95, 96, 97, 100}; 252 #endif /* PROGRESS */ 253 254 if (preen && child) 255 (void)signal(SIGQUIT, voidquit); 256 setcdevname(filesys, preen); 257 if (debug && preen) 258 pwarn("starting\n"); 259 switch (setup(filesys)) { 260 case 0: 261 if (preen) 262 pfatal("CAN'T CHECK FILE SYSTEM."); 263 /* fall through */ 264 case -1: 265 return (0); 266 } 267 /* 268 * Cleared if any questions answered no. Used to decide if 269 * the superblock should be marked clean. 270 */ 271 resolved = 1; 272 273 #ifdef PROGRESS 274 progress_switch(progress); 275 progress_init(); 276 #endif /* PROGRESS */ 277 278 /* 279 * 1: scan inodes tallying blocks used 280 */ 281 if (preen == 0) { 282 pwarn("** Last Mounted on %s\n", sblock->fs_fsmnt); 283 if (hotroot()) 284 pwarn("** Root file system\n"); 285 pwarn("** Phase 1 - Check Blocks and Sizes\n"); 286 } 287 #ifdef PROGRESS 288 if (preen) 289 progress_setrange(0, progress_limits[1]); 290 #endif /* PROGRESS */ 291 pass1(); 292 293 /* 294 * 1b: locate first references to duplicates, if any 295 */ 296 if (duplist) { 297 if (preen) 298 pfatal("INTERNAL ERROR: dups with -p\n"); 299 if (usedsoftdep) 300 pfatal("INTERNAL ERROR: dups with softdep\n"); 301 pwarn("** Phase 1b - Rescan For More DUPS\n"); 302 pass1b(); 303 } 304 305 /* 306 * 2: traverse directories from root to mark all connected directories 307 */ 308 if (preen == 0) 309 pwarn("** Phase 2 - Check Pathnames\n"); 310 #ifdef PROGRESS 311 if (preen) 312 progress_sethighlim(progress_limits[2]); 313 #endif /* PROGRESS */ 314 pass2(); 315 316 /* 317 * 3: scan inodes looking for disconnected directories 318 */ 319 if (preen == 0) 320 pwarn("** Phase 3 - Check Connectivity\n"); 321 #ifdef PROGRESS 322 if (preen) 323 progress_sethighlim(progress_limits[3]); 324 #endif /* PROGRESS */ 325 pass3(); 326 327 /* 328 * 4: scan inodes looking for disconnected files; check reference counts 329 */ 330 if (preen == 0) 331 pwarn("** Phase 4 - Check Reference Counts\n"); 332 #ifdef PROGRESS 333 if (preen) 334 progress_sethighlim(progress_limits[4]); 335 #endif /* PROGRESS */ 336 pass4(); 337 338 /* 339 * 5: check and repair resource counts in cylinder groups 340 */ 341 if (preen == 0) 342 pwarn("** Phase 5 - Check Cyl groups\n"); 343 #ifdef PROGRESS 344 if (preen) 345 progress_sethighlim(progress_limits[5]); 346 #endif /* PROGRESS */ 347 pass5(); 348 349 /* 350 * print out summary statistics 351 */ 352 n_ffree = sblock->fs_cstotal.cs_nffree; 353 n_bfree = sblock->fs_cstotal.cs_nbfree; 354 pwarn("%llu files, %lld used, %lld free ", 355 (unsigned long long)n_files, (long long)n_blks, 356 (long long)(n_ffree + sblock->fs_frag * n_bfree)); 357 printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", 358 (long long)n_ffree, (long long)n_bfree, 359 (long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize), 360 (long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2) 361 / (daddr_t)sblock->fs_dsize) % 10)); 362 if (debug && 363 (n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree)) 364 printf("%llu files missing\n", (unsigned long long)n_files); 365 if (debug) { 366 n_blks += sblock->fs_ncg * 367 (cgdmin(sblock, 0) - cgsblock(sblock, 0)); 368 n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0); 369 n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize); 370 if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree)) 371 printf("%lld blocks missing\n", (long long)n_blks); 372 if (duplist != NULL) { 373 printf("The following duplicate blocks remain:"); 374 for (dp = duplist; dp; dp = dp->next) 375 printf(" %lld,", (long long)dp->dup); 376 printf("\n"); 377 } 378 if (zlnhead != NULL) { 379 printf("The following zero link count inodes remain:"); 380 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 381 printf(" %llu,", 382 (unsigned long long)zlnp->zlncnt); 383 printf("\n"); 384 } 385 } 386 zlnhead = (struct zlncnt *)0; 387 duplist = (struct dups *)0; 388 muldup = (struct dups *)0; 389 inocleanup(); 390 if (fsmodified) { 391 sblock->fs_time = time(NULL); 392 sbdirty(); 393 } 394 if (rerun) 395 markclean = 0; 396 #if LITE2BORKEN 397 if (!hotroot()) { 398 ckfini(); 399 } else { 400 struct statvfs stfs_buf; 401 /* 402 * Check to see if root is mounted read-write. 403 */ 404 if (statvfs("/", &stfs_buf) == 0) 405 flags = stfs_buf.f_flag; 406 else 407 flags = 0; 408 if (markclean) 409 markclean = flags & MNT_RDONLY; 410 ckfini(); 411 } 412 #else 413 ckfini(); 414 #endif 415 for (cylno = 0; cylno < sblock->fs_ncg; cylno++) 416 if (inostathead[cylno].il_stat != NULL) 417 free(inostathead[cylno].il_stat); 418 free(inostathead); 419 inostathead = NULL; 420 421 if (!resolved || rerun) { 422 pwarn("\n***** UNRESOLVED INCONSISTENCIES REMAIN *****\n"); 423 returntosingle = 1; 424 } 425 if (!fsmodified) 426 return (0); 427 if (!preen) 428 pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 429 if (rerun) 430 pwarn("\n***** PLEASE RERUN FSCK *****\n"); 431 if (hotroot()) { 432 struct statvfs stfs_buf; 433 /* 434 * We modified the root. Do a mount update on 435 * it, unless it is read-write, so we can continue. 436 */ 437 if (statvfs("/", &stfs_buf) == 0) { 438 long flags = stfs_buf.f_flag; 439 struct ufs_args args; 440 int ret; 441 442 if (flags & MNT_RDONLY) { 443 args.fspec = 0; 444 flags |= MNT_UPDATE | MNT_RELOAD; 445 ret = mount(MOUNT_FFS, "/", flags, &args); 446 if (ret == 0) 447 return(0); 448 } 449 } 450 if (!preen) 451 pwarn("\n***** REBOOT NOW *****\n"); 452 sync(); 453 return (4); 454 } 455 return (0); 456 } 457 458 static void 459 usage(void) 460 { 461 462 (void) fprintf(stderr, 463 "usage: %s [-adFfnPpqy] [-B be|le] [-b block] [-c level] [-m mode]" 464 " filesystem ...\n", 465 getprogname()); 466 exit(1); 467 } 468 469
Indexes created Mon Oct 27 08:10:08 GMT 2025