e2fsck/unix.c

   1 /*
   2  * unix.c - The unix-specific code for e2fsck
   3  *
   4  * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #include <stdio.h>
  13 #ifdef HAVE_STDLIB_H
  14 #include <stdlib.h>
  15 #endif
  16 #include <string.h>
  17 #include <fcntl.h>
  18 #include <ctype.h>
  19 #include <time.h>
  20 #ifdef HAVE_SIGNAL_H
  21 #include <signal.h>
  22 #endif
  23 #ifdef HAVE_GETOPT_H
  24 #include <getopt.h>
  25 #else
  26 extern char *optarg;
  27 extern int optind;
  28 #endif
  29 #include <unistd.h>
  30 #ifdef HAVE_ERRNO_H
  31 #include <errno.h>
  32 #endif
  33 #ifdef HAVE_MNTENT_H
  34 #include <mntent.h>
  35 #endif
  36 #ifdef HAVE_SYS_IOCTL_H
  37 #include <sys/ioctl.h>
  38 #endif
  39 #ifdef HAVE_MALLOC_H
  40 #include <malloc.h>
  41 #endif
  42 #ifdef HAVE_SYS_TYPES_H
  43 #include <sys/types.h>
  44 #endif
  45 #ifdef HAVE_DIRENT_H
  46 #include <dirent.h>
  47 #endif
  48
  49 #include "et/com_err.h"
  50 #include "e2fsck.h"
  51 #include "problem.h"
  52 #include "../version.h"
  53
  54 /* Command line options */
  55 static int swapfs;
  56 static int normalize_swapfs;
  57 static int cflag;               /* check disk */
  58 static int show_version_only;
  59 static int verbose;
  60
  61 static int replace_bad_blocks;
  62 static int keep_bad_blocks;
  63 static char *bad_blocks_file;
  64
  65 e2fsck_t e2fsck_global_ctx;     /* Try your very best not to use this! */
  66
  67 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jfs-debug */
  68 int journal_enable_debug = -1;
  69 #endif
  70
  71 static void usage(e2fsck_t ctx)
  72 {
  73         fprintf(stderr,
  74                 _("Usage: %s [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]\n"
  75                 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
  76                 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
  77                 "\t\t[-E extended-options] device\n"),
  78                 ctx->program_name);
  79
  80         fprintf(stderr, _("\nEmergency help:\n"
  81                 " -p                   Automatic repair (no questions)\n"
  82                 " -n                   Make no changes to the filesystem\n"
  83                 " -y                   Assume \"yes\" to all questions\n"
  84                 " -c                   Check for bad blocks and add them to the badblock list\n"
  85                 " -f                   Force checking even if filesystem is marked clean\n"));
  86         fprintf(stderr, _(""
  87                 " -v                   Be verbose\n"
  88                 " -b superblock        Use alternative superblock\n"
  89                 " -B blocksize         Force blocksize when looking for superblock\n"
  90                 " -j external_journal  Set location of the external journal\n"
  91                 " -l bad_blocks_file   Add to badblocks list\n"
  92                 " -L bad_blocks_file   Set badblocks list\n"
  93                 ));
  94
  95         exit(FSCK_USAGE);
  96 }
  97
  98 static void show_stats(e2fsck_t ctx)
  99 {
 100         ext2_filsys fs = ctx->fs;
 101         ext2_ino_t inodes, inodes_used;
 102         blk_t blocks, blocks_used;
 103         int dir_links;
 104         int num_files, num_links;
 105         int frag_percent;
 106
 107         dir_links = 2 * ctx->fs_directory_count - 1;
 108         num_files = ctx->fs_total_count - dir_links;
 109         num_links = ctx->fs_links_count - dir_links;
 110         inodes = fs->super->s_inodes_count;
 111         inodes_used = (fs->super->s_inodes_count -
 112                        fs->super->s_free_inodes_count);
 113         blocks = fs->super->s_blocks_count;
 114         blocks_used = (fs->super->s_blocks_count -
 115                        fs->super->s_free_blocks_count);
 116
 117         frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
 118         frag_percent = (frag_percent + 5) / 10;
 119
 120         if (!verbose) {
 121                 printf(_("%s: %u/%u files (%0d.%d%% non-contiguous), %u/%u blocks\n"),
 122                        ctx->device_name, inodes_used, inodes,
 123                        frag_percent / 10, frag_percent % 10,
 124                        blocks_used, blocks);
 125                 return;
 126         }
 127         printf (P_("\n%8u inode used (%2.2f%%)\n", "\n%8u inodes used (%2.2f%%)\n",
 128                    inodes_used), inodes_used, 100.0 * inodes_used / inodes);
 129         printf (P_("%8u non-contiguous inode (%0d.%d%%)\n",
 130                    "%8u non-contiguous inodes (%0d.%d%%)\n",
 131                    ctx->fs_fragmented),
 132                 ctx->fs_fragmented, frag_percent / 10, frag_percent % 10);
 133         printf (_("         # of inodes with ind/dind/tind blocks: %u/%u/%u\n"),
 134                 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
 135         printf (P_("%8u block used (%2.2f%%)\n", "%8u blocks used (%2.2f%%)\n",
 136                    blocks_used), blocks_used, 100.0 * blocks_used / blocks);
 137         printf (P_("%8u bad block\n", "%8u bad blocks\n",
 138                    ctx->fs_badblocks_count), ctx->fs_badblocks_count);
 139         printf (P_("%8u large file\n", "%8u large files\n",
 140                    ctx->large_files), ctx->large_files);
 141         printf (P_("\n%8u regular file\n", "\n%8u regular files\n",
 142                    ctx->fs_regular_count), ctx->fs_regular_count);
 143         printf (P_("%8u directory\n", "%8u directories\n",
 144                    ctx->fs_directory_count), ctx->fs_directory_count);
 145         printf (P_("%8u character device file\n",
 146                    "%8u character device files\n", ctx->fs_chardev_count),
 147                 ctx->fs_chardev_count);
 148         printf (P_("%8u block device file\n", "%8u block device files\n",
 149                    ctx->fs_blockdev_count), ctx->fs_blockdev_count);
 150         printf (P_("%8u fifo\n", "%8u fifos\n", ctx->fs_fifo_count),
 151                 ctx->fs_fifo_count);
 152         printf (P_("%8u link\n", "%8u links\n",
 153                    ctx->fs_links_count - dir_links),
 154                 ctx->fs_links_count - dir_links);
 155         printf (P_("%8u symbolic link", "%8u symbolic links",
 156                    ctx->fs_symlinks_count), ctx->fs_symlinks_count);
 157         printf (P_(" (%u fast symbolic link)\n", " (%u fast symbolic links)\n",
 158                    ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count);
 159         printf (P_("%8u socket\n", "%8u sockets\n", ctx->fs_sockets_count),
 160                 ctx->fs_sockets_count);
 161         printf ("--------\n");
 162         printf (P_("%8u file\n", "%8u files\n",
 163                    ctx->fs_total_count - dir_links),
 164                 ctx->fs_total_count - dir_links);
 165 }
 166
 167 static void check_mount(e2fsck_t ctx)
 168 {
 169         errcode_t       retval;
 170         int             cont;
 171
 172         retval = ext2fs_check_if_mounted(ctx->filesystem_name,
 173                                          &ctx->mount_flags);
 174         if (retval) {
 175                 com_err("ext2fs_check_if_mount", retval,
 176                         _("while determining whether %s is mounted."),
 177                         ctx->filesystem_name);
 178                 return;
 179         }
 180
 181         /*
 182          * If the filesystem isn't mounted, or it's the root
 183          * filesystem and it's mounted read-only, and we're not doing
 184          * a read/write check, then everything's fine.
 185          */
 186         if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) ||
 187             ((ctx->mount_flags & EXT2_MF_ISROOT) &&
 188              (ctx->mount_flags & EXT2_MF_READONLY) &&
 189              !(ctx->options & E2F_OPT_WRITECHECK)))
 190                 return;
 191
 192         if ((ctx->options & E2F_OPT_READONLY) &&
 193             !(ctx->options & E2F_OPT_WRITECHECK)) {
 194                 printf(_("Warning!  %s is mounted.\n"), ctx->filesystem_name);
 195                 return;
 196         }
 197
 198         printf(_("%s is mounted.  "), ctx->filesystem_name);
 199         if (!ctx->interactive)
 200                 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
 201         printf(_("\n\n\007\007\007\007WARNING!!!  "
 202                "Running e2fsck on a mounted filesystem may cause\n"
 203                "SEVERE filesystem damage.\007\007\007\n\n"));
 204         cont = ask_yn(_("Do you really want to continue"), -1);
 205         if (!cont) {
 206                 printf (_("check aborted.\n"));
 207                 exit (0);
 208         }
 209         return;
 210 }
 211
 212 static int is_on_batt(void)
 213 {
 214         FILE    *f;
 215         DIR     *d;
 216         char    tmp[80], tmp2[80], fname[80];
 217         unsigned int    acflag;
 218         struct dirent*  de;
 219
 220         f = fopen("/proc/apm", "r");
 221         if (f) {
 222                 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
 223                         acflag = 1;
 224                 fclose(f);
 225                 return (acflag != 1);
 226         }
 227         d = opendir("/proc/acpi/ac_adapter");
 228         if (d) {
 229                 while ((de=readdir(d)) != NULL) {
 230                         if (!strncmp(".", de->d_name, 1))
 231                                 continue;
 232                         snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
 233                                  de->d_name);
 234                         f = fopen(fname, "r");
 235                         if (!f)
 236                                 continue;
 237                         if (fscanf(f, "%s %s", tmp2, tmp) != 2)
 238                                 tmp[0] = 0;
 239                         fclose(f);
 240                         if (strncmp(tmp, "off-line", 8) == 0) {
 241                                 closedir(d);
 242                                 return 1;
 243                         }
 244                 }
 245                 closedir(d);
 246         }
 247         return 0;
 248 }
 249
 250 /*
 251  * This routine checks to see if a filesystem can be skipped; if so,
 252  * it will exit with E2FSCK_OK.  Under some conditions it will print a
 253  * message explaining why a check is being forced.
 254  */
 255 static void check_if_skip(e2fsck_t ctx)
 256 {
 257         ext2_filsys fs = ctx->fs;
 258         const char *reason = NULL;
 259         unsigned int reason_arg = 0;
 260         long next_check;
 261         int batt = is_on_batt();
 262         int defer_check_on_battery;
 263
 264         profile_get_boolean(ctx->profile, "options",
 265                             "defer_check_on_battery", 0, 1,
 266                             &defer_check_on_battery);
 267         if (!defer_check_on_battery)
 268                 batt = 0;
 269
 270         if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file ||
 271             cflag || swapfs)
 272                 return;
 273
 274         if ((fs->super->s_state & EXT2_ERROR_FS) ||
 275             !ext2fs_test_valid(fs))
 276                 reason = _(" contains a file system with errors");
 277         else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 278                 reason = _(" was not cleanly unmounted");
 279         else if ((fs->super->s_max_mnt_count > 0) &&
 280                  (fs->super->s_mnt_count >=
 281                   (unsigned) fs->super->s_max_mnt_count)) {
 282                 reason = _(" has been mounted %u times without being checked");
 283                 reason_arg = fs->super->s_mnt_count;
 284                 if (batt && (fs->super->s_mnt_count <
 285                              (unsigned) fs->super->s_max_mnt_count*2))
 286                         reason = 0;
 287         } else if (fs->super->s_checkinterval &&
 288                    ((ctx->now - fs->super->s_lastcheck) >=
 289                     fs->super->s_checkinterval)) {
 290                 reason = _(" has gone %u days without being checked");
 291                 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
 292                 if (batt && ((ctx->now - fs->super->s_lastcheck) <
 293                              fs->super->s_checkinterval*2))
 294                         reason = 0;
 295         }
 296         if (reason) {
 297                 fputs(ctx->device_name, stdout);
 298                 printf(reason, reason_arg);
 299                 fputs(_(", check forced.\n"), stdout);
 300                 return;
 301         }
 302         printf(_("%s: clean, %u/%u files, %u/%u blocks"), ctx->device_name,
 303                fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 304                fs->super->s_inodes_count,
 305                fs->super->s_blocks_count - fs->super->s_free_blocks_count,
 306                fs->super->s_blocks_count);
 307         next_check = 100000;
 308         if (fs->super->s_max_mnt_count > 0) {
 309                 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
 310                 if (next_check <= 0)
 311                         next_check = 1;
 312         }
 313         if (fs->super->s_checkinterval &&
 314             ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
 315                 next_check = 1;
 316         if (next_check <= 5) {
 317                 if (next_check == 1) {
 318                         if (batt)
 319                                 fputs(_(" (check deferred; on battery)"),
 320                                       stdout);
 321                         else
 322                                 fputs(_(" (check after next mount)"), stdout);
 323                 } else
 324                         printf(_(" (check in %ld mounts)"), next_check);
 325         }
 326         fputc('\n', stdout);
 327         ext2fs_close(fs);
 328         ctx->fs = NULL;
 329         e2fsck_free_context(ctx);
 330         exit(FSCK_OK);
 331 }
 332
 333 /*
 334  * For completion notice
 335  */
 336 struct percent_tbl {
 337         int     max_pass;
 338         int     table[32];
 339 };
 340 struct percent_tbl e2fsck_tbl = {
 341         5, { 0, 70, 90, 92,  95, 100 }
 342 };
 343 static char bar[128], spaces[128];
 344
 345 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
 346                           int max)
 347 {
 348         float   percent;
 349
 350         if (pass <= 0)
 351                 return 0.0;
 352         if (pass > tbl->max_pass || max == 0)
 353                 return 100.0;
 354         percent = ((float) curr) / ((float) max);
 355         return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
 356                 + tbl->table[pass-1]);
 357 }
 358
 359 extern void e2fsck_clear_progbar(e2fsck_t ctx)
 360 {
 361         if (!(ctx->flags & E2F_FLAG_PROG_BAR))
 362                 return;
 363
 364         printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
 365                ctx->stop_meta);
 366         fflush(stdout);
 367         ctx->flags &= ~E2F_FLAG_PROG_BAR;
 368 }
 369
 370 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
 371                            unsigned int dpynum)
 372 {
 373         static const char spinner[] = "\\|/-";
 374         int     i;
 375         unsigned int    tick;
 376         struct timeval  tv;
 377         int dpywidth;
 378         int fixed_percent;
 379
 380         if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
 381                 return 0;
 382
 383         /*
 384          * Calculate the new progress position.  If the
 385          * percentage hasn't changed, then we skip out right
 386          * away.
 387          */
 388         fixed_percent = (int) ((10 * percent) + 0.5);
 389         if (ctx->progress_last_percent == fixed_percent)
 390                 return 0;
 391         ctx->progress_last_percent = fixed_percent;
 392
 393         /*
 394          * If we've already updated the spinner once within
 395          * the last 1/8th of a second, no point doing it
 396          * again.
 397          */
 398         gettimeofday(&tv, NULL);
 399         tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
 400         if ((tick == ctx->progress_last_time) &&
 401             (fixed_percent != 0) && (fixed_percent != 1000))
 402                 return 0;
 403         ctx->progress_last_time = tick;
 404
 405         /*
 406          * Advance the spinner, and note that the progress bar
 407          * will be on the screen
 408          */
 409         ctx->progress_pos = (ctx->progress_pos+1) & 3;
 410         ctx->flags |= E2F_FLAG_PROG_BAR;
 411
 412         dpywidth = 66 - strlen(label);
 413         dpywidth = 8 * (dpywidth / 8);
 414         if (dpynum)
 415                 dpywidth -= 8;
 416
 417         i = ((percent * dpywidth) + 50) / 100;
 418         printf("%s%s: |%s%s", ctx->start_meta, label,
 419                bar + (sizeof(bar) - (i+1)),
 420                spaces + (sizeof(spaces) - (dpywidth - i + 1)));
 421         if (fixed_percent == 1000)
 422                 fputc('|', stdout);
 423         else
 424                 fputc(spinner[ctx->progress_pos & 3], stdout);
 425         printf(" %4.1f%%  ", percent);
 426         if (dpynum)
 427                 printf("%u\r", dpynum);
 428         else
 429                 fputs(" \r", stdout);
 430         fputs(ctx->stop_meta, stdout);
 431
 432         if (fixed_percent == 1000)
 433                 e2fsck_clear_progbar(ctx);
 434         fflush(stdout);
 435
 436         return 0;
 437 }
 438
 439 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
 440                                   unsigned long cur, unsigned long max)
 441 {
 442         char buf[80];
 443         float percent;
 444
 445         if (pass == 0)
 446                 return 0;
 447
 448         if (ctx->progress_fd) {
 449                 sprintf(buf, "%d %lu %lu\n", pass, cur, max);
 450                 write(ctx->progress_fd, buf, strlen(buf));
 451         } else {
 452                 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
 453                 e2fsck_simple_progress(ctx, ctx->device_name,
 454                                        percent, 0);
 455         }
 456         return 0;
 457 }
 458
 459 #define PATH_SET "PATH=/sbin"
 460
 461 static void reserve_stdio_fds(void)
 462 {
 463         int     fd;
 464
 465         while (1) {
 466                 fd = open("/dev/null", O_RDWR);
 467                 if (fd > 2)
 468                         break;
 469                 if (fd < 0) {
 470                         fprintf(stderr, _("ERROR: Couldn't open "
 471                                 "/dev/null (%s)\n"),
 472                                 strerror(errno));
 473                         break;
 474                 }
 475         }
 476         close(fd);
 477 }
 478
 479 #ifdef HAVE_SIGNAL_H
 480 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
 481 {
 482         e2fsck_t ctx = e2fsck_global_ctx;
 483
 484         if (!ctx)
 485                 return;
 486
 487         ctx->progress = e2fsck_update_progress;
 488         ctx->progress_fd = 0;
 489 }
 490
 491 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
 492 {
 493         e2fsck_t ctx = e2fsck_global_ctx;
 494
 495         if (!ctx)
 496                 return;
 497
 498         e2fsck_clear_progbar(ctx);
 499         ctx->progress = 0;
 500 }
 501
 502 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
 503 {
 504         e2fsck_t ctx = e2fsck_global_ctx;
 505
 506         if (!ctx)
 507                 exit(FSCK_CANCELED);
 508
 509         ctx->flags |= E2F_FLAG_CANCEL;
 510 }
 511 #endif
 512
 513 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
 514 {
 515         char    *buf, *token, *next, *p, *arg;
 516         int     ea_ver;
 517         int     extended_usage = 0;
 518
 519         buf = string_copy(ctx, opts, 0);
 520         for (token = buf; token && *token; token = next) {
 521                 p = strchr(token, ',');
 522                 next = 0;
 523                 if (p) {
 524                         *p = 0;
 525                         next = p+1;
 526                 }
 527                 arg = strchr(token, '=');
 528                 if (arg) {
 529                         *arg = 0;
 530                         arg++;
 531                 }
 532                 if (strcmp(token, "ea_ver") == 0) {
 533                         if (!arg) {
 534                                 extended_usage++;
 535                                 continue;
 536                         }
 537                         ea_ver = strtoul(arg, &p, 0);
 538                         if (*p ||
 539                             ((ea_ver != 1) && (ea_ver != 2))) {
 540                                 fprintf(stderr,
 541                                         _("Invalid EA version.\n"));
 542                                 extended_usage++;
 543                                 continue;
 544                         }
 545                         ctx->ext_attr_ver = ea_ver;
 546                 } else {
 547                         fprintf(stderr, _("Unknown extended option: %s\n"),
 548                                 token);
 549                         extended_usage++;
 550                 }
 551         }
 552         free(buf);
 553
 554         if (extended_usage) {
 555                 fputs(("\nExtended options are separated by commas, "
 556                        "and may take an argument which\n"
 557                        "is set off by an equals ('=') sign.  "
 558                         "Valid extended options are:\n"
 559                        "\tea_ver=<ea_version (1 or 2)>\n\n"), stderr);
 560                 exit(1);
 561         }
 562 }
 563
 564 static void syntax_err_report(const char *filename, long err, int line_num)
 565 {
 566         fprintf(stderr,
 567                 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
 568                 filename, line_num, error_message(err));
 569         exit(FSCK_ERROR);
 570 }
 571
 572 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
 573
 574 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
 575 {
 576         int             flush = 0;
 577         int             c, fd;
 578 #ifdef MTRACE
 579         extern void     *mallwatch;
 580 #endif
 581         e2fsck_t        ctx;
 582         errcode_t       retval;
 583 #ifdef HAVE_SIGNAL_H
 584         struct sigaction        sa;
 585 #endif
 586         char            *extended_opts = 0;
 587         char            *cp;
 588
 589         retval = e2fsck_allocate_context(&ctx);
 590         if (retval)
 591                 return retval;
 592
 593         *ret_ctx = ctx;
 594
 595         setvbuf(stdout, NULL, _IONBF, BUFSIZ);
 596         setvbuf(stderr, NULL, _IONBF, BUFSIZ);
 597         if (isatty(0) && isatty(1)) {
 598                 ctx->interactive = 1;
 599         } else {
 600                 ctx->start_meta[0] = '\001';
 601                 ctx->stop_meta[0] = '\002';
 602         }
 603         memset(bar, '=', sizeof(bar)-1);
 604         memset(spaces, ' ', sizeof(spaces)-1);
 605         add_error_table(&et_ext2_error_table);
 606         add_error_table(&et_prof_error_table);
 607         blkid_get_cache(&ctx->blkid, NULL);
 608
 609         if (argc && *argv)
 610                 ctx->program_name = *argv;
 611         else
 612                 ctx->program_name = "e2fsck";
 613         while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
 614                 switch (c) {
 615                 case 'C':
 616                         ctx->progress = e2fsck_update_progress;
 617                         ctx->progress_fd = atoi(optarg);
 618                         if (!ctx->progress_fd)
 619                                 break;
 620                         /* Validate the file descriptor to avoid disasters */
 621                         fd = dup(ctx->progress_fd);
 622                         if (fd < 0) {
 623                                 fprintf(stderr,
 624                                 _("Error validating file descriptor %d: %s\n"),
 625                                         ctx->progress_fd,
 626                                         error_message(errno));
 627                                 fatal_error(ctx,
 628                         _("Invalid completion information file descriptor"));
 629                         } else
 630                                 close(fd);
 631                         break;
 632                 case 'D':
 633                         ctx->options |= E2F_OPT_COMPRESS_DIRS;
 634                         break;
 635                 case 'E':
 636                         extended_opts = optarg;
 637                         break;
 638                 case 'p':
 639                 case 'a':
 640                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
 641                         conflict_opt:
 642                                 fatal_error(ctx,
 643         _("Only one of the options -p/-a, -n or -y may be specified."));
 644                         }
 645                         ctx->options |= E2F_OPT_PREEN;
 646                         break;
 647                 case 'n':
 648                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
 649                                 goto conflict_opt;
 650                         ctx->options |= E2F_OPT_NO;
 651                         break;
 652                 case 'y':
 653                         if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
 654                                 goto conflict_opt;
 655                         ctx->options |= E2F_OPT_YES;
 656                         break;
 657                 case 't':
 658 #ifdef RESOURCE_TRACK
 659                         if (ctx->options & E2F_OPT_TIME)
 660                                 ctx->options |= E2F_OPT_TIME2;
 661                         else
 662                                 ctx->options |= E2F_OPT_TIME;
 663 #else
 664                         fprintf(stderr, _("The -t option is not "
 665                                 "supported on this version of e2fsck.\n"));
 666 #endif
 667                         break;
 668                 case 'c':
 669                         if (cflag++)
 670                                 ctx->options |= E2F_OPT_WRITECHECK;
 671                         ctx->options |= E2F_OPT_CHECKBLOCKS;
 672                         break;
 673                 case 'r':
 674                         /* What we do by default, anyway! */
 675                         break;
 676                 case 'b':
 677                         ctx->use_superblock = atoi(optarg);
 678                         ctx->flags |= E2F_FLAG_SB_SPECIFIED;
 679                         break;
 680                 case 'B':
 681                         ctx->blocksize = atoi(optarg);
 682                         break;
 683                 case 'I':
 684                         ctx->inode_buffer_blocks = atoi(optarg);
 685                         break;
 686                 case 'j':
 687                         ctx->journal_name = string_copy(ctx, optarg, 0);
 688                         break;
 689                 case 'P':
 690                         ctx->process_inode_size = atoi(optarg);
 691                         break;
 692                 case 'L':
 693                         replace_bad_blocks++;
 694                 case 'l':
 695                         bad_blocks_file = string_copy(ctx, optarg, 0);
 696                         break;
 697                 case 'd':
 698                         ctx->options |= E2F_OPT_DEBUG;
 699                         break;
 700                 case 'f':
 701                         ctx->options |= E2F_OPT_FORCE;
 702                         break;
 703                 case 'F':
 704                         flush = 1;
 705                         break;
 706                 case 'v':
 707                         verbose = 1;
 708                         break;
 709                 case 'V':
 710                         show_version_only = 1;
 711                         break;
 712 #ifdef MTRACE
 713                 case 'M':
 714                         mallwatch = (void *) strtol(optarg, NULL, 0);
 715                         break;
 716 #endif
 717                 case 'N':
 718                         ctx->device_name = optarg;
 719                         break;
 720 #ifdef ENABLE_SWAPFS
 721                 case 's':
 722                         normalize_swapfs = 1;
 723                 case 'S':
 724                         swapfs = 1;
 725                         break;
 726 #else
 727                 case 's':
 728                 case 'S':
 729                         fprintf(stderr, _("Byte-swapping filesystems "
 730                                           "not compiled in this version "
 731                                           "of e2fsck\n"));
 732                         exit(1);
 733 #endif
 734                 case 'k':
 735                         keep_bad_blocks++;
 736                         break;
 737                 default:
 738                         usage(ctx);
 739                 }
 740         if (show_version_only)
 741                 return 0;
 742         if (optind != argc - 1)
 743                 usage(ctx);
 744         if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file &&
 745             !cflag && !swapfs && !(ctx->options & E2F_OPT_COMPRESS_DIRS))
 746                 ctx->options |= E2F_OPT_READONLY;
 747         ctx->io_options = strchr(argv[optind], '?');
 748         if (ctx->io_options)
 749                 *ctx->io_options++ = 0;
 750         ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
 751         if (!ctx->filesystem_name) {
 752                 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
 753                         argv[optind]);
 754                 fatal_error(ctx, 0);
 755         }
 756         if (extended_opts)
 757                 parse_extended_opts(ctx, extended_opts);
 758
 759         if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
 760                 config_fn[0] = cp;
 761         profile_set_syntax_err_cb(syntax_err_report);
 762         profile_init(config_fn, &ctx->profile);
 763
 764         if (flush) {
 765                 fd = open(ctx->filesystem_name, O_RDONLY, 0);
 766                 if (fd < 0) {
 767                         com_err("open", errno,
 768                                 _("while opening %s for flushing"),
 769                                 ctx->filesystem_name);
 770                         fatal_error(ctx, 0);
 771                 }
 772                 if ((retval = ext2fs_sync_device(fd, 1))) {
 773                         com_err("ext2fs_sync_device", retval,
 774                                 _("while trying to flush %s"),
 775                                 ctx->filesystem_name);
 776                         fatal_error(ctx, 0);
 777                 }
 778                 close(fd);
 779         }
 780 #ifdef ENABLE_SWAPFS
 781         if (swapfs) {
 782                 if (cflag || bad_blocks_file) {
 783                         fprintf(stderr, _("Incompatible options not "
 784                                           "allowed when byte-swapping.\n"));
 785                         exit(FSCK_USAGE);
 786                 }
 787         }
 788 #endif
 789         if (cflag && bad_blocks_file) {
 790                 fprintf(stderr, _("The -c and the -l/-L options may "
 791                                   "not be both used at the same time.\n"));
 792                 exit(FSCK_USAGE);
 793         }
 794 #ifdef HAVE_SIGNAL_H
 795         /*
 796          * Set up signal action
 797          */
 798         memset(&sa, 0, sizeof(struct sigaction));
 799         sa.sa_handler = signal_cancel;
 800         sigaction(SIGINT, &sa, 0);
 801         sigaction(SIGTERM, &sa, 0);
 802 #ifdef SA_RESTART
 803         sa.sa_flags = SA_RESTART;
 804 #endif
 805         e2fsck_global_ctx = ctx;
 806         sa.sa_handler = signal_progress_on;
 807         sigaction(SIGUSR1, &sa, 0);
 808         sa.sa_handler = signal_progress_off;
 809         sigaction(SIGUSR2, &sa, 0);
 810 #endif
 811
 812         /* Update our PATH to include /sbin if we need to run badblocks  */
 813         if (cflag) {
 814                 char *oldpath = getenv("PATH");
 815                 char *newpath;
 816                 int len = sizeof(PATH_SET) + 1;
 817
 818                 if (oldpath)
 819                         len += strlen(oldpath);
 820
 821                 newpath = malloc(len);
 822                 if (!newpath)
 823                         fatal_error(ctx, "Couldn't malloc() newpath");
 824                 strcpy(newpath, PATH_SET);
 825
 826                 if (oldpath) {
 827                         strcat(newpath, ":");
 828                         strcat(newpath, oldpath);
 829                 }
 830                 putenv(newpath);
 831         }
 832 #ifdef CONFIG_JBD_DEBUG
 833         if (getenv("E2FSCK_JBD_DEBUG"))
 834                 journal_enable_debug = atoi(getenv("E2FSCK_JBD_DEBUG"));
 835 #endif
 836         return 0;
 837 }
 838
 839 static const char *my_ver_string = E2FSPROGS_VERSION;
 840 static const char *my_ver_date = E2FSPROGS_DATE;
 841
 842 int main (int argc, char *argv[])
 843 {
 844         errcode_t       retval = 0;
 845         int             exit_value = FSCK_OK;
 846         ext2_filsys     fs = 0;
 847         io_manager      io_ptr;
 848         struct ext2_super_block *sb;
 849         const char      *lib_ver_date;
 850         int             my_ver, lib_ver;
 851         e2fsck_t        ctx;
 852         struct problem_context pctx;
 853         int flags, run_result;
 854         int journal_size;
 855
 856         clear_problem_context(&pctx);
 857 #ifdef MTRACE
 858         mtrace();
 859 #endif
 860 #ifdef MCHECK
 861         mcheck(0);
 862 #endif
 863 #ifdef ENABLE_NLS
 864         setlocale(LC_MESSAGES, "");
 865         setlocale(LC_CTYPE, "");
 866         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 867         textdomain(NLS_CAT_NAME);
 868 #endif
 869         my_ver = ext2fs_parse_version_string(my_ver_string);
 870         lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
 871         if (my_ver > lib_ver) {
 872                 fprintf( stderr, _("Error: ext2fs library version "
 873                         "out of date!\n"));
 874                 show_version_only++;
 875         }
 876
 877         retval = PRS(argc, argv, &ctx);
 878         if (retval) {
 879                 com_err("e2fsck", retval,
 880                         _("while trying to initialize program"));
 881                 exit(FSCK_ERROR);
 882         }
 883         reserve_stdio_fds();
 884
 885 #ifdef RESOURCE_TRACK
 886         init_resource_track(&ctx->global_rtrack, NULL);
 887 #endif
 888
 889         if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
 890                 fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string,
 891                          my_ver_date);
 892
 893         if (show_version_only) {
 894                 fprintf(stderr, _("\tUsing %s, %s\n"),
 895                         error_message(EXT2_ET_BASE), lib_ver_date);
 896                 exit(FSCK_OK);
 897         }
 898
 899         check_mount(ctx);
 900
 901         if (!(ctx->options & E2F_OPT_PREEN) &&
 902             !(ctx->options & E2F_OPT_NO) &&
 903             !(ctx->options & E2F_OPT_YES)) {
 904                 if (!ctx->interactive)
 905                         fatal_error(ctx,
 906                                     _("need terminal for interactive repairs"));
 907         }
 908         ctx->superblock = ctx->use_superblock;
 909 restart:
 910 #ifdef CONFIG_TESTIO_DEBUG
 911         io_ptr = test_io_manager;
 912         test_io_backing_manager = unix_io_manager;
 913 #else
 914         io_ptr = unix_io_manager;
 915 #endif
 916         flags = 0;
 917         if ((ctx->options & E2F_OPT_READONLY) == 0)
 918                 flags |= EXT2_FLAG_RW;
 919         if ((ctx->mount_flags & EXT2_MF_MOUNTED) == 0)
 920                 flags |= EXT2_FLAG_EXCLUSIVE;
 921
 922         if (ctx->superblock && ctx->blocksize) {
 923                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 924                                       flags, ctx->superblock, ctx->blocksize,
 925                                       io_ptr, &fs);
 926         } else if (ctx->superblock) {
 927                 int blocksize;
 928                 for (blocksize = EXT2_MIN_BLOCK_SIZE;
 929                      blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
 930                         retval = ext2fs_open2(ctx->filesystem_name,
 931                                               ctx->io_options, flags,
 932                                               ctx->superblock, blocksize,
 933                                               io_ptr, &fs);
 934                         if (!retval)
 935                                 break;
 936                 }
 937         } else
 938                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 939                                       flags, 0, 0, io_ptr, &fs);
 940         if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
 941             !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
 942             ((retval == EXT2_ET_BAD_MAGIC) ||
 943              ((retval == 0) && ext2fs_check_desc(fs)))) {
 944                 if (!fs || (fs->group_desc_count > 1)) {
 945                         printf(_("%s trying backup blocks...\n"),
 946                                retval ? _("Couldn't find ext2 superblock,") :
 947                                _("Group descriptors look bad..."));
 948                         get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
 949                         if (fs)
 950                                 ext2fs_close(fs);
 951                         goto restart;
 952                 }
 953         }
 954         if (retval) {
 955                 com_err(ctx->program_name, retval, _("while trying to open %s"),
 956                         ctx->filesystem_name);
 957                 if (retval == EXT2_ET_REV_TOO_HIGH) {
 958                         printf(_("The filesystem revision is apparently "
 959                                "too high for this version of e2fsck.\n"
 960                                "(Or the filesystem superblock "
 961                                "is corrupt)\n\n"));
 962                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
 963                 } else if (retval == EXT2_ET_SHORT_READ)
 964                         printf(_("Could this be a zero-length partition?\n"));
 965                 else if ((retval == EPERM) || (retval == EACCES))
 966                         printf(_("You must have %s access to the "
 967                                "filesystem or be root\n"),
 968                                (ctx->options & E2F_OPT_READONLY) ?
 969                                "r/o" : "r/w");
 970                 else if (retval == ENXIO)
 971                         printf(_("Possibly non-existent or swap device?\n"));
 972                 else if (retval == EBUSY)
 973                         printf(_("Filesystem mounted or opened exclusively "
 974                                  "by another program?\n"));
 975 #ifdef EROFS
 976                 else if (retval == EROFS)
 977                         printf(_("Disk write-protected; use the -n option "
 978                                "to do a read-only\n"
 979                                "check of the device.\n"));
 980 #endif
 981                 else
 982                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
 983                 fatal_error(ctx, 0);
 984         }
 985         /*
 986          * We only update the master superblock because (a) paranoia;
 987          * we don't want to corrupt the backup superblocks, and (b) we
 988          * don't need to update the mount count and last checked
 989          * fields in the backup superblock (the kernel doesn't update
 990          * the backup superblocks anyway).  With newer versions of the
 991          * library this flag is set by ext2fs_open2(), but we set this
 992          * here just to be sure.  (No, we don't support e2fsck running
 993          * with some other libext2fs than the one that it was shipped
 994          * with, but just in case....)
 995          */
 996         fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
 997
 998         if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
 999                 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1000                 int need_restart = 0;
1001
1002                 pctx.errcode = ext2fs_get_device_size(ctx->filesystem_name,
1003                                                       blocksize,
1004                                                       &ctx->num_blocks);
1005                 /*
1006                  * The floppy driver refuses to allow anyone else to
1007                  * open the device if has been opened with O_EXCL;
1008                  * this is unlike other block device drivers in Linux.
1009                  * To handle this, we close the filesystem and then
1010                  * reopen the filesystem after we get the device size.
1011                  */
1012                 if (pctx.errcode == EBUSY) {
1013                         ext2fs_close(fs);
1014                         need_restart++;
1015                         pctx.errcode =
1016                                 ext2fs_get_device_size(ctx->filesystem_name,
1017                                                        blocksize,
1018                                                        &ctx->num_blocks);
1019                 }
1020                 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1021                         ctx->num_blocks = 0;
1022                 else if (pctx.errcode) {
1023                         fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1024                         ctx->flags |= E2F_FLAG_ABORT;
1025                         fatal_error(ctx, 0);
1026                 }
1027                 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1028                 if (need_restart)
1029                         goto restart;
1030         }
1031
1032         ctx->fs = fs;
1033         fs->priv_data = ctx;
1034         fs->now = ctx->now;
1035         sb = fs->super;
1036         if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1037                 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1038                         _("while trying to open %s"),
1039                         ctx->filesystem_name);
1040         get_newer:
1041                 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1042         }
1043
1044         /*
1045          * Set the device name, which is used whenever we print error
1046          * or informational messages to the user.
1047          */
1048         if (ctx->device_name == 0 &&
1049             (sb->s_volume_name[0] != 0)) {
1050                 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1051                                                sizeof(sb->s_volume_name));
1052         }
1053         if (ctx->device_name == 0)
1054                 ctx->device_name = ctx->filesystem_name;
1055
1056         /*
1057          * Make sure the ext3 superblock fields are consistent.
1058          */
1059         retval = e2fsck_check_ext3_journal(ctx);
1060         if (retval) {
1061                 com_err(ctx->program_name, retval,
1062                         _("while checking ext3 journal for %s"),
1063                         ctx->device_name);
1064                 fatal_error(ctx, 0);
1065         }
1066
1067         /*
1068          * Check to see if we need to do ext3-style recovery.  If so,
1069          * do it, and then restart the fsck.
1070          */
1071         if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1072                 if (ctx->options & E2F_OPT_READONLY) {
1073                         printf(_("Warning: skipping journal recovery "
1074                                  "because doing a read-only filesystem "
1075                                  "check.\n"));
1076                         io_channel_flush(ctx->fs->io);
1077                 } else {
1078                         if (ctx->flags & E2F_FLAG_RESTARTED) {
1079                                 /*
1080                                  * Whoops, we attempted to run the
1081                                  * journal twice.  This should never
1082                                  * happen, unless the hardware or
1083                                  * device driver is being bogus.
1084                                  */
1085                                 com_err(ctx->program_name, 0,
1086                                         _("unable to set superblock flags on %s\n"), ctx->device_name);
1087                                 fatal_error(ctx, 0);
1088                         }
1089                         retval = e2fsck_run_ext3_journal(ctx);
1090                         if (retval) {
1091                                 com_err(ctx->program_name, retval,
1092                                 _("while recovering ext3 journal of %s"),
1093                                         ctx->device_name);
1094                                 fatal_error(ctx, 0);
1095                         }
1096                         ext2fs_close(ctx->fs);
1097                         ctx->fs = 0;
1098                         ctx->flags |= E2F_FLAG_RESTARTED;
1099                         goto restart;
1100                 }
1101         }
1102
1103         /*
1104          * Check for compatibility with the feature sets.  We need to
1105          * be more stringent than ext2fs_open().
1106          */
1107         if ((sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) ||
1108             (sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP)) {
1109                 com_err(ctx->program_name, EXT2_ET_UNSUPP_FEATURE,
1110                         "(%s)", ctx->device_name);
1111                 goto get_newer;
1112         }
1113         if (sb->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {
1114                 com_err(ctx->program_name, EXT2_ET_RO_UNSUPP_FEATURE,
1115                         "(%s)", ctx->device_name);
1116                 goto get_newer;
1117         }
1118 #ifdef ENABLE_COMPRESSION
1119         if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
1120                 com_err(ctx->program_name, 0,
1121                         _("Warning: compression support is experimental.\n"));
1122 #endif
1123 #ifndef ENABLE_HTREE
1124         if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1125                 com_err(ctx->program_name, 0,
1126                         _("E2fsck not compiled with HTREE support,\n\t"
1127                           "but filesystem %s has HTREE directories.\n"),
1128                         ctx->device_name);
1129                 goto get_newer;
1130         }
1131 #endif
1132
1133         /*
1134          * If the user specified a specific superblock, presumably the
1135          * master superblock has been trashed.  So we mark the
1136          * superblock as dirty, so it can be written out.
1137          */
1138         if (ctx->superblock &&
1139             !(ctx->options & E2F_OPT_READONLY))
1140                 ext2fs_mark_super_dirty(fs);
1141
1142         ehandler_init(fs->io);
1143
1144         if (ctx->superblock)
1145                 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1146         ext2fs_mark_valid(fs);
1147         check_super_block(ctx);
1148         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1149                 fatal_error(ctx, 0);
1150         check_if_skip(ctx);
1151         if (bad_blocks_file)
1152                 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1153         else if (cflag)
1154                 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1155         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1156                 fatal_error(ctx, 0);
1157 #ifdef ENABLE_SWAPFS
1158         if (normalize_swapfs) {
1159                 if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ==
1160                     ext2fs_native_flag()) {
1161                         fprintf(stderr, _("%s: Filesystem byte order "
1162                                 "already normalized.\n"), ctx->device_name);
1163                         fatal_error(ctx, 0);
1164                 }
1165         }
1166         if (swapfs) {
1167                 swap_filesys(ctx);
1168                 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1169                         fatal_error(ctx, 0);
1170         }
1171 #endif
1172
1173         /*
1174          * Mark the system as valid, 'til proven otherwise
1175          */
1176         ext2fs_mark_valid(fs);
1177
1178         retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1179         if (retval) {
1180                 com_err(ctx->program_name, retval,
1181                         _("while reading bad blocks inode"));
1182                 preenhalt(ctx);
1183                 printf(_("This doesn't bode well,"
1184                          " but we'll try to go on...\n"));
1185         }
1186
1187         /*
1188          * Save the journal size in megabytes.
1189          * Try and use the journal size from the backup else let e2fsck
1190          * find the default journal size.
1191          */
1192         if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1193                 journal_size = sb->s_jnl_blocks[16] >> 20;
1194         else
1195                 journal_size = -1;
1196
1197         run_result = e2fsck_run(ctx);
1198         e2fsck_clear_progbar(ctx);
1199
1200         if (ctx->flags & E2F_FLAG_JOURNAL_INODE) {
1201                 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1202                         if (journal_size < 1024)
1203                                 journal_size = ext2fs_default_journal_size(fs->super->s_blocks_count);
1204                         if (journal_size < 0) {
1205                                 fs->super->s_feature_compat &=
1206                                         ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1207                                 com_err(ctx->program_name, 0,
1208                                         _("Couldn't determine journal size"));
1209                                 goto no_journal;
1210                         }
1211                         printf(_("Creating journal (%d blocks): "),
1212                                journal_size);
1213                         fflush(stdout);
1214                         retval = ext2fs_add_journal_inode(fs,
1215                                                           journal_size, 0);
1216                         if (retval) {
1217                                 com_err("Error ", retval,
1218                                         _("\n\twhile trying to create journal"));
1219                                 goto no_journal;
1220                         }
1221                         printf(_(" Done.\n"));
1222                         printf(_("\n*** journal has been re-created - "
1223                                        "filesystem is now ext3 again ***\n"));
1224                 }
1225         }
1226 no_journal:
1227
1228         if (run_result == E2F_FLAG_RESTART) {
1229                 printf(_("Restarting e2fsck from the beginning...\n"));
1230                 retval = e2fsck_reset_context(ctx);
1231                 if (retval) {
1232                         com_err(ctx->program_name, retval,
1233                                 _("while resetting context"));
1234                         fatal_error(ctx, 0);
1235                 }
1236                 ext2fs_close(fs);
1237                 goto restart;
1238         }
1239         if (run_result & E2F_FLAG_CANCEL) {
1240                 printf(_("%s: e2fsck canceled.\n"), ctx->device_name ?
1241                        ctx->device_name : ctx->filesystem_name);
1242                 exit_value |= FSCK_CANCELED;
1243         }
1244         if (run_result & E2F_FLAG_ABORT)
1245                 fatal_error(ctx, _("aborted"));
1246
1247 #ifdef MTRACE
1248         mtrace_print("Cleanup");
1249 #endif
1250         if (ext2fs_test_changed(fs)) {
1251                 exit_value |= FSCK_NONDESTRUCT;
1252                 if (!(ctx->options & E2F_OPT_PREEN))
1253                     printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1254                                ctx->device_name);
1255                 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1256                         printf(_("%s: ***** REBOOT LINUX *****\n"),
1257                                ctx->device_name);
1258                         exit_value |= FSCK_REBOOT;
1259                 }
1260         }
1261         if (!ext2fs_test_valid(fs) ||
1262             ((exit_value & FSCK_CANCELED) &&
1263              (sb->s_state & EXT2_ERROR_FS))) {
1264                 printf(_("\n%s: ********** WARNING: Filesystem still has "
1265                          "errors **********\n\n"), ctx->device_name);
1266                 exit_value |= FSCK_UNCORRECTED;
1267                 exit_value &= ~FSCK_NONDESTRUCT;
1268         }
1269         if (exit_value & FSCK_CANCELED) {
1270                 int     allow_cancellation;
1271
1272                 profile_get_boolean(ctx->profile, "options",
1273                                     "allow_cancellation", 0, 0,
1274                                     &allow_cancellation);
1275                 exit_value &= ~FSCK_NONDESTRUCT;
1276                 if (allow_cancellation && ext2fs_test_valid(fs) &&
1277                     (sb->s_state & EXT2_VALID_FS) &&
1278                     !(sb->s_state & EXT2_ERROR_FS))
1279                         exit_value = 0;
1280         } else {
1281                 show_stats(ctx);
1282                 if (!(ctx->options & E2F_OPT_READONLY)) {
1283                         if (ext2fs_test_valid(fs)) {
1284                                 if (!(sb->s_state & EXT2_VALID_FS))
1285                                         exit_value |= FSCK_NONDESTRUCT;
1286                                 sb->s_state = EXT2_VALID_FS;
1287                         } else
1288                                 sb->s_state &= ~EXT2_VALID_FS;
1289                         sb->s_mnt_count = 0;
1290                         sb->s_lastcheck = ctx->now;
1291                         ext2fs_mark_super_dirty(fs);
1292                 }
1293         }
1294
1295         e2fsck_write_bitmaps(ctx);
1296 #ifdef RESOURCE_TRACK
1297         io_channel_flush(ctx->fs->io);
1298         if (ctx->options & E2F_OPT_TIME)
1299                 print_resource_track(NULL, &ctx->global_rtrack, ctx->fs->io);
1300 #endif
1301         ext2fs_close(fs);
1302         ctx->fs = NULL;
1303         free(ctx->filesystem_name);
1304         free(ctx->journal_name);
1305
1306         e2fsck_free_context(ctx);
1307         remove_error_table(&et_ext2_error_table);
1308         remove_error_table(&et_prof_error_table);
1309         return exit_value;
1310 }