main.c revision 1.62
1 /* $NetBSD: main.c,v 1.62 2006/11/14 22:51:11 apb 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 2006/11/14 22:51:11 apb 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:npPqy")) != -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; 158 159 case 'y': 160 yflag++; 161 nflag = 0; 162 break; 163 164 default: 165 usage(); 166 } 167 } 168 169 argc -= optind; 170 argv += optind; 171 172 if (!argc) 173 usage(); 174 175 if (debug) 176 progress = 0; 177 178 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 179 (void)signal(SIGINT, catch); 180 if (preen) 181 (void)signal(SIGQUIT, catchquit); 182 #ifdef PROGRESS 183 if (progress) { 184 progress_ttywidth(0); 185 (void)signal(SIGWINCH, progress_ttywidth); 186 } 187 #endif /* ! PROGRESS */ 188 signal(SIGINFO, infohandler); 189 190 while (argc-- > 0) { 191 const char *path = blockcheck(*argv); 192 193 if (path == NULL) 194 pfatal("Can't check %s\n", *argv); 195 else 196 (void)checkfilesys(blockcheck(*argv), 0, 0L, 0); 197 argv++; 198 } 199 200 if (returntosingle) 201 ret = 2; 202 203 exit(ret); 204 } 205 206 static int 207 argtoi(int flag, const char *req, const char *str, int base) 208 { 209 char *cp; 210 int ret; 211 212 ret = (int)strtol(str, &cp, base); 213 if (cp == str || *cp) 214 errx(EEXIT, "-%c flag requires a %s", flag, req); 215 return (ret); 216 } 217 218 /* 219 * Check the specified filesystem. 220 */ 221 /* ARGSUSED */ 222 static int 223 checkfilesys(const char *filesys, char *mntpt, long auxdata, int child) 224 { 225 daddr_t n_ffree, n_bfree; 226 struct dups *dp; 227 struct zlncnt *zlnp; 228 int cylno; 229 #ifdef LITE2BORKEN 230 int flags; 231 #endif 232 #ifdef PROGRESS 233 /* 234 * In prune mode, how far does the progress bar travel during 235 * each pass? (In non-prune mode, each pass has a separate 236 * progress bar that travels from 0 to 100%.) 237 * 238 * The numbers below are percentages, intended to correspond 239 * roughly to the cumulative time up to the end of each pass. 240 * They don't have to be accurate. In reality, on a large 241 * file system, Pass 1 and Pass 2 together are likely to use 242 * significantly more than the 95% reflected below, so users 243 * will get a pleasant surprise when the last 5% of the progress 244 * bar runs more quickly than they had expected. 245 */ 246 static int progress_limits[] = {0, 20, 95, 96, 97, 100}; 247 #endif /* PROGRESS */ 248 249 if (preen && child) 250 (void)signal(SIGQUIT, voidquit); 251 setcdevname(filesys, preen); 252 if (debug && preen) 253 pwarn("starting\n"); 254 switch (setup(filesys)) { 255 case 0: 256 if (preen) 257 pfatal("CAN'T CHECK FILE SYSTEM."); 258 /* fall through */ 259 case -1: 260 return (0); 261 } 262 /* 263 * Cleared if any questions answered no. Used to decide if 264 * the superblock should be marked clean. 265 */ 266 resolved = 1; 267 268 #ifdef PROGRESS 269 progress_switch(progress); 270 progress_init(); 271 #endif /* PROGRESS */ 272 273 /* 274 * 1: scan inodes tallying blocks used 275 */ 276 if (preen == 0) { 277 pwarn("** Last Mounted on %s\n", sblock->fs_fsmnt); 278 if (hotroot()) 279 pwarn("** Root file system\n"); 280 pwarn("** Phase 1 - Check Blocks and Sizes\n"); 281 } 282 #ifdef PROGRESS 283 if (preen) 284 progress_setrange(0, progress_limits[1]); 285 #endif /* PROGRESS */ 286 pass1(); 287 288 /* 289 * 1b: locate first references to duplicates, if any 290 */ 291 if (duplist) { 292 if (preen) 293 pfatal("INTERNAL ERROR: dups with -p\n"); 294 if (usedsoftdep) 295 pfatal("INTERNAL ERROR: dups with softdep\n"); 296 pwarn("** Phase 1b - Rescan For More DUPS\n"); 297 pass1b(); 298 } 299 300 /* 301 * 2: traverse directories from root to mark all connected directories 302 */ 303 if (preen == 0) 304 pwarn("** Phase 2 - Check Pathnames\n"); 305 #ifdef PROGRESS 306 if (preen) 307 progress_sethighlim(progress_limits[2]); 308 #endif /* PROGRESS */ 309 pass2(); 310 311 /* 312 * 3: scan inodes looking for disconnected directories 313 */ 314 if (preen == 0) 315 pwarn("** Phase 3 - Check Connectivity\n"); 316 #ifdef PROGRESS 317 if (preen) 318 progress_sethighlim(progress_limits[3]); 319 #endif /* PROGRESS */ 320 pass3(); 321 322 /* 323 * 4: scan inodes looking for disconnected files; check reference counts 324 */ 325 if (preen == 0) 326 pwarn("** Phase 4 - Check Reference Counts\n"); 327 #ifdef PROGRESS 328 if (preen) 329 progress_sethighlim(progress_limits[4]); 330 #endif /* PROGRESS */ 331 pass4(); 332 333 /* 334 * 5: check and repair resource counts in cylinder groups 335 */ 336 if (preen == 0) 337 pwarn("** Phase 5 - Check Cyl groups\n"); 338 #ifdef PROGRESS 339 if (preen) 340 progress_sethighlim(progress_limits[5]); 341 #endif /* PROGRESS */ 342 pass5(); 343 344 /* 345 * print out summary statistics 346 */ 347 n_ffree = sblock->fs_cstotal.cs_nffree; 348 n_bfree = sblock->fs_cstotal.cs_nbfree; 349 pwarn("%llu files, %lld used, %lld free ", 350 (unsigned long long)n_files, (long long)n_blks, 351 (long long)(n_ffree + sblock->fs_frag * n_bfree)); 352 printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", 353 (long long)n_ffree, (long long)n_bfree, 354 (long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize), 355 (long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2) 356 / (daddr_t)sblock->fs_dsize) % 10)); 357 if (debug && 358 (n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree)) 359 printf("%llu files missing\n", (unsigned long long)n_files); 360 if (debug) { 361 n_blks += sblock->fs_ncg * 362 (cgdmin(sblock, 0) - cgsblock(sblock, 0)); 363 n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0); 364 n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize); 365 if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree)) 366 printf("%lld blocks missing\n", (long long)n_blks); 367 if (duplist != NULL) { 368 printf("The following duplicate blocks remain:"); 369 for (dp = duplist; dp; dp = dp->next) 370 printf(" %lld,", (long long)dp->dup); 371 printf("\n"); 372 } 373 if (zlnhead != NULL) { 374 printf("The following zero link count inodes remain:"); 375 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 376 printf(" %llu,", 377 (unsigned long long)zlnp->zlncnt); 378 printf("\n"); 379 } 380 } 381 zlnhead = (struct zlncnt *)0; 382 duplist = (struct dups *)0; 383 muldup = (struct dups *)0; 384 inocleanup(); 385 if (fsmodified) { 386 sblock->fs_time = time(NULL); 387 sbdirty(); 388 } 389 if (rerun) 390 markclean = 0; 391 #if LITE2BORKEN 392 if (!hotroot()) { 393 ckfini(); 394 } else { 395 struct statvfs stfs_buf; 396 /* 397 * Check to see if root is mounted read-write. 398 */ 399 if (statvfs("/", &stfs_buf) == 0) 400 flags = stfs_buf.f_flag; 401 else 402 flags = 0; 403 if (markclean) 404 markclean = flags & MNT_RDONLY; 405 ckfini(); 406 } 407 #else 408 ckfini(); 409 #endif 410 for (cylno = 0; cylno < sblock->fs_ncg; cylno++) 411 if (inostathead[cylno].il_stat != NULL) 412 free(inostathead[cylno].il_stat); 413 free(inostathead); 414 inostathead = NULL; 415 416 if (!resolved || rerun) { 417 pwarn("\n***** UNRESOLVED INCONSISTENCIES REMAIN *****\n"); 418 returntosingle = 1; 419 } 420 if (!fsmodified) 421 return (0); 422 if (!preen) 423 pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 424 if (rerun) 425 pwarn("\n***** PLEASE RERUN FSCK *****\n"); 426 if (hotroot()) { 427 struct statvfs stfs_buf; 428 /* 429 * We modified the root. Do a mount update on 430 * it, unless it is read-write, so we can continue. 431 */ 432 if (statvfs("/", &stfs_buf) == 0) { 433 long flags = stfs_buf.f_flag; 434 struct ufs_args args; 435 int ret; 436 437 if (flags & MNT_RDONLY) { 438 args.fspec = 0; 439 flags |= MNT_UPDATE | MNT_RELOAD; 440 ret = mount(MOUNT_FFS, "/", flags, &args); 441 if (ret == 0) 442 return(0); 443 } 444 } 445 if (!preen) 446 pwarn("\n***** REBOOT NOW *****\n"); 447 sync(); 448 return (4); 449 } 450 return (0); 451 } 452 453 static void 454 usage(void) 455 { 456 457 (void) fprintf(stderr, 458 "usage: %s [-adFfnPpqy] [-B be|le] [-b block] [-c level] [-m mode]" 459 " filesystem ...\n", 460 getprogname()); 461 exit(1); 462 } 463 464
Indexes created Mon Sep 29 21:09:56 GMT 2025