main.c revision 1.54
1 /* $NetBSD: main.c,v 1.54 2005/01/13 19:56:02 christos 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 1.54 2005/01/13 19:56:02 christos 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 int main __P((int, char *[])); 74 75 static int argtoi __P((int, char *, char *, int)); 76 static int checkfilesys __P((const char *, char *, long, int)); 77 static void usage __P((void)); 78 79 int 80 main(argc, argv) 81 int argc; 82 char *argv[]; 83 { 84 struct rlimit r; 85 int ch; 86 int ret = 0; 87 88 if (getrlimit(RLIMIT_DATA, &r) == 0) { 89 r.rlim_cur = r.rlim_max; 90 (void) setrlimit(RLIMIT_DATA, &r); 91 } 92 sync(); 93 skipclean = 1; 94 markclean = 1; 95 forceimage = 0; 96 endian = 0; 97 isappleufs = 0; 98 while ((ch = getopt(argc, argv, "aB:b:c:dFfm:npPqy")) != -1) { 99 switch (ch) { 100 case 'a': 101 isappleufs = 1; 102 break; 103 104 case 'B': 105 if (strcmp(optarg, "be") == 0) 106 endian = BIG_ENDIAN; 107 else if (strcmp(optarg, "le") == 0) 108 endian = LITTLE_ENDIAN; 109 else usage(); 110 break; 111 112 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 'c': 119 skipclean = 0; 120 cvtlevel = argtoi('c', "conversion level", optarg, 10); 121 if (cvtlevel > 4) { 122 cvtlevel = 4; 123 warnx("Using maximum conversion level of %d\n",cvtlevel); 124 } 125 break; 126 127 case 'd': 128 debug++; 129 break; 130 131 case 'F': 132 forceimage = 1; 133 break; 134 135 case 'f': 136 skipclean = 0; 137 break; 138 139 case 'm': 140 lfmode = argtoi('m', "mode", optarg, 8); 141 if (lfmode &~ 07777) 142 errx(EEXIT, "bad mode to -m: %o", lfmode); 143 printf("** lost+found creation mode %o\n", lfmode); 144 break; 145 146 case 'n': 147 nflag++; 148 yflag = 0; 149 break; 150 151 case 'p': 152 preen++; 153 break; 154 155 case 'P': 156 progress = 1; 157 break; 158 159 case 'q': 160 quiet++; 161 break; 162 163 case 'y': 164 yflag++; 165 nflag = 0; 166 break; 167 168 default: 169 usage(); 170 } 171 } 172 173 argc -= optind; 174 argv += optind; 175 176 if (!argc) 177 usage(); 178 179 if (debug) 180 progress = 0; 181 182 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 183 (void)signal(SIGINT, catch); 184 if (preen) 185 (void)signal(SIGQUIT, catchquit); 186 #ifdef PROGRESS 187 if (progress) { 188 progress_ttywidth(0); 189 (void)signal(SIGWINCH, progress_ttywidth); 190 } 191 #endif /* ! PROGRESS */ 192 signal(SIGINFO, infohandler); 193 194 while (argc-- > 0) { 195 const char *path = blockcheck(*argv); 196 197 if (path == NULL) 198 pfatal("Can't check %s\n", *argv); 199 else 200 (void)checkfilesys(blockcheck(*argv), 0, 0L, 0); 201 argv++; 202 } 203 204 if (returntosingle) 205 ret = 2; 206 207 exit(ret); 208 } 209 210 static int 211 argtoi(flag, req, str, base) 212 int flag; 213 char *req, *str; 214 int base; 215 { 216 char *cp; 217 int ret; 218 219 ret = (int)strtol(str, &cp, base); 220 if (cp == str || *cp) 221 errx(EEXIT, "-%c flag requires a %s", flag, req); 222 return (ret); 223 } 224 225 /* 226 * Check the specified filesystem. 227 */ 228 /* ARGSUSED */ 229 static int 230 checkfilesys(filesys, mntpt, auxdata, child) 231 const char *filesys; 232 char *mntpt; 233 long auxdata; 234 int child; 235 { 236 daddr_t n_ffree, n_bfree; 237 struct dups *dp; 238 struct zlncnt *zlnp; 239 int cylno; 240 #ifdef LITE2BORKEN 241 int flags; 242 #endif 243 #ifdef PROGRESS 244 off_t progress_total = 0; 245 #endif /* PROGRESS */ 246 247 if (preen && child) 248 (void)signal(SIGQUIT, voidquit); 249 setcdevname(filesys, preen); 250 if (debug && preen) 251 pwarn("starting\n"); 252 switch (setup(filesys)) { 253 case 0: 254 if (preen) 255 pfatal("CAN'T CHECK FILE SYSTEM."); 256 /* fall through */ 257 case -1: 258 return (0); 259 } 260 /* 261 * Cleared if any questions answered no. Used to decide if 262 * the superblock should be marked clean. 263 */ 264 resolved = 1; 265 266 #ifdef PROGRESS 267 /* 268 * Pass 1, Pass 4, and Pass 5 all iterate over cylinder 269 * groups. Account for those now. We'll never need to 270 * add in Pass 1b, since that pass is never executed when 271 * preening. 272 * 273 * Pass 2 and Pass 3 iterate over directory inodes, but we 274 * don't know how many of those exist until after Pass 1. 275 * We'll add those in after Pass 1 has completed. 276 */ 277 if (preen) 278 progress_total += sblock->fs_ncg * 3; 279 #endif /* PROGRESS */ 280 281 /* 282 * 1: scan inodes tallying blocks used 283 */ 284 if (preen == 0) { 285 pwarn("** Last Mounted on %s\n", sblock->fs_fsmnt); 286 if (hotroot()) 287 pwarn("** Root file system\n"); 288 pwarn("** Phase 1 - Check Blocks and Sizes\n"); 289 } 290 pass1(); 291 292 #ifdef PROGRESS 293 /* Account for number of directory inodes (used twice). */ 294 if (preen) 295 progress_total += inplast * 2; 296 progress_switch(progress); 297 progress_init(progress_total); 298 #endif /* PROGRESS */ 299 300 301 /* 302 * 1b: locate first references to duplicates, if any 303 */ 304 if (duplist) { 305 if (preen) 306 pfatal("INTERNAL ERROR: dups with -p\n"); 307 if (usedsoftdep) 308 pfatal("INTERNAL ERROR: dups with softdep\n"); 309 pwarn("** Phase 1b - Rescan For More DUPS\n"); 310 pass1b(); 311 } 312 313 /* 314 * 2: traverse directories from root to mark all connected directories 315 */ 316 if (preen == 0) 317 pwarn("** Phase 2 - Check Pathnames\n"); 318 pass2(); 319 320 /* 321 * 3: scan inodes looking for disconnected directories 322 */ 323 if (preen == 0) 324 pwarn("** Phase 3 - Check Connectivity\n"); 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 pass4(); 333 334 /* 335 * 5: check and repair resource counts in cylinder groups 336 */ 337 if (preen == 0) 338 pwarn("** Phase 5 - Check Cyl groups\n"); 339 pass5(); 340 341 /* 342 * print out summary statistics 343 */ 344 n_ffree = sblock->fs_cstotal.cs_nffree; 345 n_bfree = sblock->fs_cstotal.cs_nbfree; 346 pwarn("%d files, %lld used, %lld free ", 347 n_files, (long long)n_blks, 348 (long long)(n_ffree + sblock->fs_frag * n_bfree)); 349 printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n", 350 (long long)n_ffree, (long long)n_bfree, 351 (long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize), 352 (long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2) 353 / (daddr_t)sblock->fs_dsize) % 10)); 354 if (debug && 355 (n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree)) 356 printf("%d files missing\n", n_files); 357 if (debug) { 358 n_blks += sblock->fs_ncg * 359 (cgdmin(sblock, 0) - cgsblock(sblock, 0)); 360 n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0); 361 n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize); 362 if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree)) 363 printf("%lld blocks missing\n", (long long)n_blks); 364 if (duplist != NULL) { 365 printf("The following duplicate blocks remain:"); 366 for (dp = duplist; dp; dp = dp->next) 367 printf(" %lld,", (long long)dp->dup); 368 printf("\n"); 369 } 370 if (zlnhead != NULL) { 371 printf("The following zero link count inodes remain:"); 372 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 373 printf(" %u,", zlnp->zlncnt); 374 printf("\n"); 375 } 376 } 377 zlnhead = (struct zlncnt *)0; 378 duplist = (struct dups *)0; 379 muldup = (struct dups *)0; 380 inocleanup(); 381 if (fsmodified) { 382 sblock->fs_time = time(NULL); 383 sbdirty(); 384 } 385 if (rerun) 386 markclean = 0; 387 #if LITE2BORKEN 388 if (!hotroot()) { 389 ckfini(); 390 } else { 391 struct statvfs stfs_buf; 392 /* 393 * Check to see if root is mounted read-write. 394 */ 395 if (statvfs("/", &stfs_buf) == 0) 396 flags = stfs_buf.f_flag; 397 else 398 flags = 0; 399 if (markclean) 400 markclean = flags & MNT_RDONLY; 401 ckfini(); 402 } 403 #else 404 ckfini(); 405 #endif 406 for (cylno = 0; cylno < sblock->fs_ncg; cylno++) 407 if (inostathead[cylno].il_stat != NULL) 408 free(inostathead[cylno].il_stat); 409 free(inostathead); 410 inostathead = NULL; 411 412 if (!resolved || rerun) { 413 pwarn("\n***** UNRESOLVED INCONSISTENCIES REMAIN *****\n"); 414 returntosingle = 1; 415 } 416 if (!fsmodified) 417 return (0); 418 if (!preen) 419 pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 420 if (rerun) 421 pwarn("\n***** PLEASE RERUN FSCK *****\n"); 422 if (hotroot()) { 423 struct statvfs stfs_buf; 424 /* 425 * We modified the root. Do a mount update on 426 * it, unless it is read-write, so we can continue. 427 */ 428 if (statvfs("/", &stfs_buf) == 0) { 429 long flags = stfs_buf.f_flag; 430 struct ufs_args args; 431 int ret; 432 433 if (flags & MNT_RDONLY) { 434 args.fspec = 0; 435 args.export.ex_flags = 0; 436 args.export.ex_root = 0; 437 flags |= MNT_UPDATE | MNT_RELOAD; 438 ret = mount(MOUNT_FFS, "/", flags, &args); 439 if (ret == 0) 440 return(0); 441 } 442 } 443 if (!preen) 444 pwarn("\n***** REBOOT NOW *****\n"); 445 sync(); 446 return (4); 447 } 448 return (0); 449 } 450 451 static void 452 usage() 453 { 454 455 (void) fprintf(stderr, 456 "usage: %s [-adFfnpqy] [-B be|le] [-b block] [-c level] [-m mode]" 457 " filesystem ...\n", 458 getprogname()); 459 exit(1); 460 } 461 462
Indexes created Mon Sep 29 21:09:56 GMT 2025