main.c revision 1.63
1 /* $NetBSD: main.c,v 1.63 2007/01/17 21:59:49 hubertf 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 1.63 2007/01/17 21:59:49 hubertf 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 <stdio.h> 62 #include <stdlib.h> 63 #include <unistd.h> 64 65 #include "fsck.h" 66 #include "extern.h" 67 #include "fsutil.h" 68 69 int returntosingle; 70 int progress = 0; 71 72 static int argtoi(int, const char *, const char *, int); 73 static int checkfilesys(const char *, char *, long, int); 74 static void usage(void); 75 76 int 77 main(int argc, char *argv[]) 78 { 79 struct rlimit r; 80 int ch; 81 int ret = 0; 82 83 if (getrlimit(RLIMIT_DATA, &r) == 0) { 84 r.rlim_cur = r.rlim_max; 85 (void) setrlimit(RLIMIT_DATA, &r); 86 } 87 sync(); 88 skipclean = 1; 89 markclean = 1; 90 forceimage = 0; 91 endian = 0; 92 isappleufs = 0; 93 while ((ch = getopt(argc, argv, "aB:b:c:dFfm:npPqy")) != -1) { 94 switch (ch) { 95 case 'a': 96 isappleufs = 1; 97 break; 98 99 case 'B': 100 if (strcmp(optarg, "be") == 0) 101 endian = BIG_ENDIAN; 102 else if (strcmp(optarg, "le") == 0) 103 endian = LITTLE_ENDIAN; 104 else usage(); 105 break; 106 107 case 'b': 108 skipclean = 0; 109 bflag = argtoi('b', "number", optarg, 10); 110 printf("Alternate super block location: %d\n", bflag); 111 break; 112 113 case 'c': 114 skipclean = 0; 115 cvtlevel = argtoi('c', "conversion level", optarg, 10); 116 if (cvtlevel > 4) { 117 cvtlevel = 4; 118 warnx("Using maximum conversion level of %d\n",cvtlevel); 119 } 120 break; 121 122 case 'd': 123 debug++; 124 break; 125 126 case 'F': 127 forceimage = 1; 128 break; 129 130 case 'f': 131 skipclean = 0; 132 break; 133 134 case 'm': 135 lfmode = argtoi('m', "mode", optarg, 8); 136 if (lfmode &~ 07777) 137 errx(EEXIT, "bad mode to -m: %o", lfmode); 138 printf("** lost+found creation mode %o\n", lfmode); 139 break; 140 141 case 'n': 142 nflag++; 143 yflag = 0; 144 break; 145 146 case 'p': 147 preen++; 148 break; 149 150 case 'P': 151 progress = 1; 152 break; 153 154 case 'q': 155 quiet++; 156 break; 157 158 case 'y': 159 yflag++; 160 nflag = 0; 161 break; 162 163 default: 164 usage(); 165 } 166 } 167 168 argc -= optind; 169 argv += optind; 170 171 if (!argc) 172 usage(); 173 174 if (debug) 175 progress = 0; 176 177 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 178 (void)signal(SIGINT, catch); 179 if (preen) 180 (void)signal(SIGQUIT, catchquit); 181 #ifdef PROGRESS 182 if (progress) { 183 progress_ttywidth(0); 184 (void)signal(SIGWINCH, progress_ttywidth); 185 } 186 #endif /* ! PROGRESS */ 187 signal(SIGINFO, infohandler); 188 189 while (argc-- > 0) { 190 const char *path = blockcheck(*argv); 191 192 if (path == NULL) 193 pfatal("Can't check %s\n", *argv); 194 else 195 (void)checkfilesys(blockcheck(*argv), 0, 0L, 0); 196 argv++; 197 } 198 199 if (returntosingle) 200 ret = 2; 201 202 exit(ret); 203 } 204 205 static int 206 argtoi(int flag, const char *req, const char *str, int base) 207 { 208 char *cp; 209 int ret; 210 211 ret = (int)strtol(str, &cp, base); 212 if (cp == str || *cp) 213 errx(EEXIT, "-%c flag requires a %s", flag, req); 214 return (ret); 215 } 216 217 /* 218 * Check the specified filesystem. 219 */ 220 /* ARGSUSED */ 221 static int 222 checkfilesys(const char *filesys, char *mntpt, long auxdata, int child) 223 { 224 daddr_t n_ffree, n_bfree; 225 struct dups *dp; 226 struct zlncnt *zlnp; 227 int cylno; 228 #ifdef LITE2BORKEN 229 int flags; 230 #endif 231 #ifdef PROGRESS 232 /* 233 * In prune mode, how far does the progress bar travel during 234 * each pass? (In non-prune mode, each pass has a separate 235 * progress bar that travels from 0 to 100%.) 236 * 237 * The numbers below are percentages, intended to correspond 238 * roughly to the cumulative time up to the end of each pass. 239 * They don't have to be accurate. In reality, on a large 240 * file system, Pass 1 and Pass 2 together are likely to use 241 * significantly more than the 95% reflected below, so users 242 * will get a pleasant surprise when the last 5% of the progress 243 * bar runs more quickly than they had expected. 244 */ 245 static int progress_limits[] = {0, 20, 95, 96, 97, 100}; 246 #endif /* PROGRESS */ 247 248 if (preen && child) 249 (void)signal(SIGQUIT, voidquit); 250 setcdevname(filesys, preen); 251 if (debug && preen) 252 pwarn("starting\n"); 253 switch (setup(filesys)) { 254 case 0: 255 if (preen) 256 pfatal("CAN'T CHECK FILE SYSTEM."); 257 /* fall through */ 258 case -1: 259 return (0); 260 } 261 /* 262 * Cleared if any questions answered no. Used to decide if 263 * the superblock should be marked clean. 264 */ 265 resolved = 1; 266 267 #ifdef PROGRESS 268 progress_switch(progress); 269 progress_init(); 270 #endif /* PROGRESS */ 271 272 /* 273 * 1: scan inodes tallying blocks used 274 */ 275 if (preen == 0) { 276 pwarn("** Last Mounted on %s\n", sblock->fs_fsmnt); 277 if (hotroot()) 278 pwarn("** Root file system\n"); 279 pwarn("** Phase 1 - Check Blocks and Sizes\n"); 280 } 281 #ifdef PROGRESS 282 if (preen) 283 progress_setrange(0, progress_limits[1]); 284 #endif /* PROGRESS */ 285 pass1(); 286 287 /* 288 * 1b: locate first references to duplicates, if any 289 */ 290 if (duplist) { 291 if (preen) 292 pfatal("INTERNAL ERROR: dups with -p\n"); 293 if (usedsoftdep) 294 pfatal("INTERNAL ERROR: dups with softdep\n"); 295 pwarn("** Phase 1b - Rescan For More DUPS\n"); 296 pass1b(); 297 } 298 299 /* 300 * 2: traverse directories from root to mark all connected directories 301 */ 302 if (preen == 0) 303 pwarn("** Phase 2 - Check Pathnames\n"); 304 #ifdef PROGRESS 305 if (preen) 306 progress_sethighlim(progress_limits[2]); 307 #endif /* PROGRESS */ 308 pass2(); 309 310 /* 311 * 3: scan inodes looking for disconnected directories 312 */ 313 if (preen == 0) 314 pwarn("** Phase 3 - Check Connectivity\n"); 315 #ifdef PROGRESS 316 if (preen) 317 progress_sethighlim(progress_limits[3]); 318 #endif /* PROGRESS */ 319 pass3(); 320 321 /* 322 * 4: scan inodes looking for disconnected files; check reference counts 323 */ 324 if (preen == 0) 325 pwarn("** Phase 4 - Check Reference Counts\n"); 326 #ifdef PROGRESS 327 if (preen) 328 progress_sethighlim(progress_limits[4]); 329 #endif /* PROGRESS */ 330 pass4(); 331 332 /* 333 * 5: check and repair resource counts in cylinder groups 334 */ 335 if (preen == 0) 336 pwarn("** Phase 5 - Check Cyl groups\n"); 337 #ifdef PROGRESS 338 if (preen) 339 progress_sethighlim(progress_limits[5]); 340 #endif /* PROGRESS */ 341 pass5(); 342 343 /* 344 * print out summary statistics 345 */ 346 n_ffree = sblock->fs_cstotal.cs_nffree; 347 n_bfree = sblock->fs_cstotal.cs_nbfree; 348 pwarn("%llu files, %lld used, %lld free ", 349 (unsigned long long)n_files, (long long)n_blks, 350 (long long)(n_ffree + sblock->fs_frag * n_bfree)); 351 printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", 352 (long long)n_ffree, (long long)n_bfree, 353 (long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize), 354 (long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2) 355 / (daddr_t)sblock->fs_dsize) % 10)); 356 if (debug && 357 (n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree)) 358 printf("%llu files missing\n", (unsigned long long)n_files); 359 if (debug) { 360 n_blks += sblock->fs_ncg * 361 (cgdmin(sblock, 0) - cgsblock(sblock, 0)); 362 n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0); 363 n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize); 364 if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree)) 365 printf("%lld blocks missing\n", (long long)n_blks); 366 if (duplist != NULL) { 367 printf("The following duplicate blocks remain:"); 368 for (dp = duplist; dp; dp = dp->next) 369 printf(" %lld,", (long long)dp->dup); 370 printf("\n"); 371 } 372 if (zlnhead != NULL) { 373 printf("The following zero link count inodes remain:"); 374 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 375 printf(" %llu,", 376 (unsigned long long)zlnp->zlncnt); 377 printf("\n"); 378 } 379 } 380 zlnhead = (struct zlncnt *)0; 381 duplist = (struct dups *)0; 382 muldup = (struct dups *)0; 383 inocleanup(); 384 if (fsmodified) { 385 sblock->fs_time = time(NULL); 386 sbdirty(); 387 } 388 if (rerun) 389 markclean = 0; 390 #if LITE2BORKEN 391 if (!hotroot()) { 392 ckfini(); 393 } else { 394 struct statvfs stfs_buf; 395 /* 396 * Check to see if root is mounted read-write. 397 */ 398 if (statvfs("/", &stfs_buf) == 0) 399 flags = stfs_buf.f_flag; 400 else 401 flags = 0; 402 if (markclean) 403 markclean = flags & MNT_RDONLY; 404 ckfini(); 405 } 406 #else 407 ckfini(); 408 #endif 409 for (cylno = 0; cylno < sblock->fs_ncg; cylno++) 410 if (inostathead[cylno].il_stat != NULL) 411 free(inostathead[cylno].il_stat); 412 free(inostathead); 413 inostathead = NULL; 414 415 if (!resolved || rerun) { 416 pwarn("\n***** UNRESOLVED INCONSISTENCIES REMAIN *****\n"); 417 returntosingle = 1; 418 } 419 if (!fsmodified) 420 return (0); 421 if (!preen) 422 pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 423 if (rerun) 424 pwarn("\n***** PLEASE RERUN FSCK *****\n"); 425 if (hotroot()) { 426 struct statvfs stfs_buf; 427 /* 428 * We modified the root. Do a mount update on 429 * it, unless it is read-write, so we can continue. 430 */ 431 if (statvfs("/", &stfs_buf) == 0) { 432 long flags = stfs_buf.f_flag; 433 struct ufs_args args; 434 int ret; 435 436 if (flags & MNT_RDONLY) { 437 args.fspec = 0; 438 flags |= MNT_UPDATE | MNT_RELOAD; 439 ret = mount(MOUNT_FFS, "/", flags, &args); 440 if (ret == 0) 441 return(0); 442 } 443 } 444 if (!preen) 445 pwarn("\n***** REBOOT NOW *****\n"); 446 sync(); 447 return (4); 448 } 449 return (0); 450 } 451 452 static void 453 usage(void) 454 { 455 456 (void) fprintf(stderr, 457 "usage: %s [-adFfnPpqy] [-B be|le] [-b block] [-c level] [-m mode]" 458 " filesystem ...\n", 459 getprogname()); 460 exit(1); 461 } 462 463
Indexes created Mon Oct 27 08:10:08 GMT 2025