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 cflag;               /* check disk */
  56 static int show_version_only;
  57 static int verbose;
  58
  59 static int replace_bad_blocks;
  60 static int keep_bad_blocks;
  61 static char *bad_blocks_file;
  62
  63 e2fsck_t e2fsck_global_ctx;     /* Try your very best not to use this! */
  64
  65 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jfs-debug */
  66 int journal_enable_debug = -1;
  67 #endif
  68
  69 static void usage(e2fsck_t ctx)
  70 {
  71         fprintf(stderr,
  72                 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
  73                 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
  74                 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
  75                 "\t\t[-E extended-options] device\n"),
  76                 ctx->program_name);
  77
  78         fprintf(stderr, _("\nEmergency help:\n"
  79                 " -p                   Automatic repair (no questions)\n"
  80                 " -n                   Make no changes to the filesystem\n"
  81                 " -y                   Assume \"yes\" to all questions\n"
  82                 " -c                   Check for bad blocks and add them to the badblock list\n"
  83                 " -f                   Force checking even if filesystem is marked clean\n"));
  84         fprintf(stderr, _(""
  85                 " -v                   Be verbose\n"
  86                 " -b superblock        Use alternative superblock\n"
  87                 " -B blocksize         Force blocksize when looking for superblock\n"
  88                 " -j external_journal  Set location of the external journal\n"
  89                 " -l bad_blocks_file   Add to badblocks list\n"
  90                 " -L bad_blocks_file   Set badblocks list\n"
  91                 ));
  92
  93         exit(FSCK_USAGE);
  94 }
  95
  96 static void show_stats(e2fsck_t ctx)
  97 {
  98         ext2_filsys fs = ctx->fs;
  99         ext2_ino_t inodes, inodes_used;
 100         blk_t blocks, blocks_used;
 101         int dir_links;
 102         int num_files, num_links;
 103         int frag_percent;
 104
 105         dir_links = 2 * ctx->fs_directory_count - 1;
 106         num_files = ctx->fs_total_count - dir_links;
 107         num_links = ctx->fs_links_count - dir_links;
 108         inodes = fs->super->s_inodes_count;
 109         inodes_used = (fs->super->s_inodes_count -
 110                        fs->super->s_free_inodes_count);
 111         blocks = fs->super->s_blocks_count;
 112         blocks_used = (fs->super->s_blocks_count -
 113                        fs->super->s_free_blocks_count);
 114
 115         frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
 116         frag_percent = (frag_percent + 5) / 10;
 117
 118         if (!verbose) {
 119                 printf(_("%s: %u/%u files (%0d.%d%% non-contiguous), %u/%u blocks\n"),
 120                        ctx->device_name, inodes_used, inodes,
 121                        frag_percent / 10, frag_percent % 10,
 122                        blocks_used, blocks);
 123                 return;
 124         }
 125         printf (P_("\n%8u inode used (%2.2f%%)\n", "\n%8u inodes used (%2.2f%%)\n",
 126                    inodes_used), inodes_used, 100.0 * inodes_used / inodes);
 127         printf (P_("%8u non-contiguous inode (%0d.%d%%)\n",
 128                    "%8u non-contiguous inodes (%0d.%d%%)\n",
 129                    ctx->fs_fragmented),
 130                 ctx->fs_fragmented, frag_percent / 10, frag_percent % 10);
 131         printf (_("         # of inodes with ind/dind/tind blocks: %u/%u/%u\n"),
 132                 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
 133         printf (P_("%8u block used (%2.2f%%)\n", "%8u blocks used (%2.2f%%)\n",
 134                    blocks_used), blocks_used, 100.0 * blocks_used / blocks);
 135         printf (P_("%8u bad block\n", "%8u bad blocks\n",
 136                    ctx->fs_badblocks_count), ctx->fs_badblocks_count);
 137         printf (P_("%8u large file\n", "%8u large files\n",
 138                    ctx->large_files), ctx->large_files);
 139         printf (P_("\n%8u regular file\n", "\n%8u regular files\n",
 140                    ctx->fs_regular_count), ctx->fs_regular_count);
 141         printf (P_("%8u directory\n", "%8u directories\n",
 142                    ctx->fs_directory_count), ctx->fs_directory_count);
 143         printf (P_("%8u character device file\n",
 144                    "%8u character device files\n", ctx->fs_chardev_count),
 145                 ctx->fs_chardev_count);
 146         printf (P_("%8u block device file\n", "%8u block device files\n",
 147                    ctx->fs_blockdev_count), ctx->fs_blockdev_count);
 148         printf (P_("%8u fifo\n", "%8u fifos\n", ctx->fs_fifo_count),
 149                 ctx->fs_fifo_count);
 150         printf (P_("%8u link\n", "%8u links\n",
 151                    ctx->fs_links_count - dir_links),
 152                 ctx->fs_links_count - dir_links);
 153         printf (P_("%8u symbolic link", "%8u symbolic links",
 154                    ctx->fs_symlinks_count), ctx->fs_symlinks_count);
 155         printf (P_(" (%u fast symbolic link)\n", " (%u fast symbolic links)\n",
 156                    ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count);
 157         printf (P_("%8u socket\n", "%8u sockets\n", ctx->fs_sockets_count),
 158                 ctx->fs_sockets_count);
 159         printf ("--------\n");
 160         printf (P_("%8u file\n", "%8u files\n",
 161                    ctx->fs_total_count - dir_links),
 162                 ctx->fs_total_count - dir_links);
 163 }
 164
 165 static void check_mount(e2fsck_t ctx)
 166 {
 167         errcode_t       retval;
 168         int             cont;
 169
 170         retval = ext2fs_check_if_mounted(ctx->filesystem_name,
 171                                          &ctx->mount_flags);
 172         if (retval) {
 173                 com_err("ext2fs_check_if_mount", retval,
 174                         _("while determining whether %s is mounted."),
 175                         ctx->filesystem_name);
 176                 return;
 177         }
 178
 179         /*
 180          * If the filesystem isn't mounted, or it's the root
 181          * filesystem and it's mounted read-only, and we're not doing
 182          * a read/write check, then everything's fine.
 183          */
 184         if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) ||
 185             ((ctx->mount_flags & EXT2_MF_ISROOT) &&
 186              (ctx->mount_flags & EXT2_MF_READONLY) &&
 187              !(ctx->options & E2F_OPT_WRITECHECK)))
 188                 return;
 189
 190         if ((ctx->options & E2F_OPT_READONLY) &&
 191             !(ctx->options & E2F_OPT_WRITECHECK)) {
 192                 printf(_("Warning!  %s is mounted.\n"), ctx->filesystem_name);
 193                 return;
 194         }
 195
 196         printf(_("%s is mounted.  "), ctx->filesystem_name);
 197         if (!ctx->interactive)
 198                 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
 199         printf(_("\n\n\007\007\007\007WARNING!!!  "
 200                "Running e2fsck on a mounted filesystem may cause\n"
 201                "SEVERE filesystem damage.\007\007\007\n\n"));
 202         cont = ask_yn(_("Do you really want to continue"), -1);
 203         if (!cont) {
 204                 printf (_("check aborted.\n"));
 205                 exit (0);
 206         }
 207         return;
 208 }
 209
 210 static int is_on_batt(void)
 211 {
 212         FILE    *f;
 213         DIR     *d;
 214         char    tmp[80], tmp2[80], fname[80];
 215         unsigned int    acflag;
 216         struct dirent*  de;
 217
 218         f = fopen("/proc/apm", "r");
 219         if (f) {
 220                 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
 221                         acflag = 1;
 222                 fclose(f);
 223                 return (acflag != 1);
 224         }
 225         d = opendir("/proc/acpi/ac_adapter");
 226         if (d) {
 227                 while ((de=readdir(d)) != NULL) {
 228                         if (!strncmp(".", de->d_name, 1))
 229                                 continue;
 230                         snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
 231                                  de->d_name);
 232                         f = fopen(fname, "r");
 233                         if (!f)
 234                                 continue;
 235                         if (fscanf(f, "%s %s", tmp2, tmp) != 2)
 236                                 tmp[0] = 0;
 237                         fclose(f);
 238                         if (strncmp(tmp, "off-line", 8) == 0) {
 239                                 closedir(d);
 240                                 return 1;
 241                         }
 242                 }
 243                 closedir(d);
 244         }
 245         return 0;
 246 }
 247
 248 /*
 249  * This routine checks to see if a filesystem can be skipped; if so,
 250  * it will exit with E2FSCK_OK.  Under some conditions it will print a
 251  * message explaining why a check is being forced.
 252  */
 253 static void check_if_skip(e2fsck_t ctx)
 254 {
 255         ext2_filsys fs = ctx->fs;
 256         const char *reason = NULL;
 257         unsigned int reason_arg = 0;
 258         long next_check;
 259         int batt = is_on_batt();
 260         int defer_check_on_battery;
 261         time_t lastcheck;
 262
 263         profile_get_boolean(ctx->profile, "options",
 264                             "defer_check_on_battery", 0, 1,
 265                             &defer_check_on_battery);
 266         if (!defer_check_on_battery)
 267                 batt = 0;
 268
 269         if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file || cflag)
 270                 return;
 271
 272         lastcheck = fs->super->s_lastcheck;
 273         if (lastcheck > ctx->now)
 274                 lastcheck -= ctx->time_fudge;
 275         if ((fs->super->s_state & EXT2_ERROR_FS) ||
 276             !ext2fs_test_valid(fs))
 277                 reason = _(" contains a file system with errors");
 278         else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 279                 reason = _(" was not cleanly unmounted");
 280         else if (check_backup_super_block(ctx))
 281                 reason = _(" primary superblock features different from backup");
 282         else if ((fs->super->s_max_mnt_count > 0) &&
 283                  (fs->super->s_mnt_count >=
 284                   (unsigned) fs->super->s_max_mnt_count)) {
 285                 reason = _(" has been mounted %u times without being checked");
 286                 reason_arg = fs->super->s_mnt_count;
 287                 if (batt && (fs->super->s_mnt_count <
 288                              (unsigned) fs->super->s_max_mnt_count*2))
 289                         reason = 0;
 290         } else if (fs->super->s_checkinterval &&
 291                    ((ctx->now - lastcheck) >= fs->super->s_checkinterval)) {
 292                 reason = _(" has gone %u days without being checked");
 293                 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
 294                 if (batt && ((ctx->now - fs->super->s_lastcheck) <
 295                              fs->super->s_checkinterval*2))
 296                         reason = 0;
 297         }
 298         if (reason) {
 299                 fputs(ctx->device_name, stdout);
 300                 printf(reason, reason_arg);
 301                 fputs(_(", check forced.\n"), stdout);
 302                 return;
 303         }
 304         printf(_("%s: clean, %u/%u files, %u/%u blocks"), ctx->device_name,
 305                fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 306                fs->super->s_inodes_count,
 307                fs->super->s_blocks_count - fs->super->s_free_blocks_count,
 308                fs->super->s_blocks_count);
 309         next_check = 100000;
 310         if (fs->super->s_max_mnt_count > 0) {
 311                 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
 312                 if (next_check <= 0)
 313                         next_check = 1;
 314         }
 315         if (fs->super->s_checkinterval &&
 316             ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
 317                 next_check = 1;
 318         if (next_check <= 5) {
 319                 if (next_check == 1) {
 320                         if (batt)
 321                                 fputs(_(" (check deferred; on battery)"),
 322                                       stdout);
 323                         else
 324                                 fputs(_(" (check after next mount)"), stdout);
 325                 } else
 326                         printf(_(" (check in %ld mounts)"), next_check);
 327         }
 328         fputc('\n', stdout);
 329         ext2fs_close(fs);
 330         ctx->fs = NULL;
 331         e2fsck_free_context(ctx);
 332         exit(FSCK_OK);
 333 }
 334
 335 /*
 336  * For completion notice
 337  */
 338 struct percent_tbl {
 339         int     max_pass;
 340         int     table[32];
 341 };
 342 struct percent_tbl e2fsck_tbl = {
 343         5, { 0, 70, 90, 92,  95, 100 }
 344 };
 345 static char bar[128], spaces[128];
 346
 347 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
 348                           int max)
 349 {
 350         float   percent;
 351
 352         if (pass <= 0)
 353                 return 0.0;
 354         if (pass > tbl->max_pass || max == 0)
 355                 return 100.0;
 356         percent = ((float) curr) / ((float) max);
 357         return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
 358                 + tbl->table[pass-1]);
 359 }
 360
 361 extern void e2fsck_clear_progbar(e2fsck_t ctx)
 362 {
 363         if (!(ctx->flags & E2F_FLAG_PROG_BAR))
 364                 return;
 365
 366         printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
 367                ctx->stop_meta);
 368         fflush(stdout);
 369         ctx->flags &= ~E2F_FLAG_PROG_BAR;
 370 }
 371
 372 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
 373                            unsigned int dpynum)
 374 {
 375         static const char spinner[] = "\\|/-";
 376         int     i;
 377         unsigned int    tick;
 378         struct timeval  tv;
 379         int dpywidth;
 380         int fixed_percent;
 381
 382         if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
 383                 return 0;
 384
 385         /*
 386          * Calculate the new progress position.  If the
 387          * percentage hasn't changed, then we skip out right
 388          * away.
 389          */
 390         fixed_percent = (int) ((10 * percent) + 0.5);
 391         if (ctx->progress_last_percent == fixed_percent)
 392                 return 0;
 393         ctx->progress_last_percent = fixed_percent;
 394
 395         /*
 396          * If we've already updated the spinner once within
 397          * the last 1/8th of a second, no point doing it
 398          * again.
 399          */
 400         gettimeofday(&tv, NULL);
 401         tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
 402         if ((tick == ctx->progress_last_time) &&
 403             (fixed_percent != 0) && (fixed_percent != 1000))
 404                 return 0;
 405         ctx->progress_last_time = tick;
 406
 407         /*
 408          * Advance the spinner, and note that the progress bar
 409          * will be on the screen
 410          */
 411         ctx->progress_pos = (ctx->progress_pos+1) & 3;
 412         ctx->flags |= E2F_FLAG_PROG_BAR;
 413
 414         dpywidth = 66 - strlen(label);
 415         dpywidth = 8 * (dpywidth / 8);
 416         if (dpynum)
 417                 dpywidth -= 8;
 418
 419         i = ((percent * dpywidth) + 50) / 100;
 420         printf("%s%s: |%s%s", ctx->start_meta, label,
 421                bar + (sizeof(bar) - (i+1)),
 422                spaces + (sizeof(spaces) - (dpywidth - i + 1)));
 423         if (fixed_percent == 1000)
 424                 fputc('|', stdout);
 425         else
 426                 fputc(spinner[ctx->progress_pos & 3], stdout);
 427         printf(" %4.1f%%  ", percent);
 428         if (dpynum)
 429                 printf("%u\r", dpynum);
 430         else
 431                 fputs(" \r", stdout);
 432         fputs(ctx->stop_meta, stdout);
 433
 434         if (fixed_percent == 1000)
 435                 e2fsck_clear_progbar(ctx);
 436         fflush(stdout);
 437
 438         return 0;
 439 }
 440
 441 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
 442                                   unsigned long cur, unsigned long max)
 443 {
 444         char buf[1024];
 445         float percent;
 446
 447         if (pass == 0)
 448                 return 0;
 449
 450         if (ctx->progress_fd) {
 451                 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
 452                          pass, cur, max, ctx->device_name);
 453                 write(ctx->progress_fd, buf, strlen(buf));
 454         } else {
 455                 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
 456                 e2fsck_simple_progress(ctx, ctx->device_name,
 457                                        percent, 0);
 458         }
 459         return 0;
 460 }
 461
 462 #define PATH_SET "PATH=/sbin"
 463
 464 static void reserve_stdio_fds(void)
 465 {
 466         int     fd;
 467
 468         while (1) {
 469                 fd = open("/dev/null", O_RDWR);
 470                 if (fd > 2)
 471                         break;
 472                 if (fd < 0) {
 473                         fprintf(stderr, _("ERROR: Couldn't open "
 474                                 "/dev/null (%s)\n"),
 475                                 strerror(errno));
 476                         break;
 477                 }
 478         }
 479         close(fd);
 480 }
 481
 482 #ifdef HAVE_SIGNAL_H
 483 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
 484 {
 485         e2fsck_t ctx = e2fsck_global_ctx;
 486
 487         if (!ctx)
 488                 return;
 489
 490         ctx->progress = e2fsck_update_progress;
 491 }
 492
 493 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
 494 {
 495         e2fsck_t ctx = e2fsck_global_ctx;
 496
 497         if (!ctx)
 498                 return;
 499
 500         e2fsck_clear_progbar(ctx);
 501         ctx->progress = 0;
 502 }
 503
 504 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
 505 {
 506         e2fsck_t ctx = e2fsck_global_ctx;
 507
 508         if (!ctx)
 509                 exit(FSCK_CANCELED);
 510
 511         ctx->flags |= E2F_FLAG_CANCEL;
 512 }
 513 #endif
 514
 515 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
 516 {
 517         char    *buf, *token, *next, *p, *arg;
 518         int     ea_ver;
 519         int     extended_usage = 0;
 520
 521         buf = string_copy(ctx, opts, 0);
 522         for (token = buf; token && *token; token = next) {
 523                 p = strchr(token, ',');
 524                 next = 0;
 525                 if (p) {
 526                         *p = 0;
 527                         next = p+1;
 528                 }
 529                 arg = strchr(token, '=');
 530                 if (arg) {
 531                         *arg = 0;
 532                         arg++;
 533                 }
 534                 if (strcmp(token, "ea_ver") == 0) {
 535                         if (!arg) {
 536                                 extended_usage++;
 537                                 continue;
 538                         }
 539                         ea_ver = strtoul(arg, &p, 0);
 540                         if (*p ||
 541                             ((ea_ver != 1) && (ea_ver != 2))) {
 542                                 fprintf(stderr,
 543                                         _("Invalid EA version.\n"));
 544                                 extended_usage++;
 545                                 continue;
 546                         }
 547                         ctx->ext_attr_ver = ea_ver;
 548                 } else {
 549                         fprintf(stderr, _("Unknown extended option: %s\n"),
 550                                 token);
 551                         extended_usage++;
 552                 }
 553         }
 554         free(buf);
 555
 556         if (extended_usage) {
 557                 fputs(("\nExtended options are separated by commas, "
 558                        "and may take an argument which\n"
 559                        "is set off by an equals ('=') sign.  "
 560                         "Valid extended options are:\n"
 561                         "\tea_ver=<ea_version (1 or 2)>\n"
 562                         "\tuninit_groups\n"
 563                         "\tinit_groups\n\n"), stderr);
 564                 exit(1);
 565         }
 566 }
 567
 568 static void syntax_err_report(const char *filename, long err, int line_num)
 569 {
 570         fprintf(stderr,
 571                 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
 572                 filename, line_num, error_message(err));
 573         exit(FSCK_ERROR);
 574 }
 575
 576 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
 577
 578 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
 579 {
 580         int             flush = 0;
 581         int             c, fd;
 582 #ifdef MTRACE
 583         extern void     *mallwatch;
 584 #endif
 585         e2fsck_t        ctx;
 586         errcode_t       retval;
 587 #ifdef HAVE_SIGNAL_H
 588         struct sigaction        sa;
 589 #endif
 590         char            *extended_opts = 0;
 591         char            *cp;
 592         int             res;            /* result of sscanf */
 593 #ifdef CONFIG_JBD_DEBUG
 594         char            *jbd_debug;
 595 #endif
 596
 597         retval = e2fsck_allocate_context(&ctx);
 598         if (retval)
 599                 return retval;
 600
 601         *ret_ctx = ctx;
 602
 603         setvbuf(stdout, NULL, _IONBF, BUFSIZ);
 604         setvbuf(stderr, NULL, _IONBF, BUFSIZ);
 605         if (isatty(0) && isatty(1)) {
 606                 ctx->interactive = 1;
 607         } else {
 608                 ctx->start_meta[0] = '\001';
 609                 ctx->stop_meta[0] = '\002';
 610         }
 611         memset(bar, '=', sizeof(bar)-1);
 612         memset(spaces, ' ', sizeof(spaces)-1);
 613         add_error_table(&et_ext2_error_table);
 614         add_error_table(&et_prof_error_table);
 615         blkid_get_cache(&ctx->blkid, NULL);
 616
 617         if (argc && *argv)
 618                 ctx->program_name = *argv;
 619         else
 620                 ctx->program_name = "e2fsck";
 621         while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
 622                 switch (c) {
 623                 case 'C':
 624                         ctx->progress = e2fsck_update_progress;
 625                         res = sscanf(optarg, "%d", &ctx->progress_fd);
 626                         if (res != 1)
 627                                 goto sscanf_err;
 628
 629                         if (ctx->progress_fd < 0) {
 630                                 ctx->progress = 0;
 631                                 ctx->progress_fd = ctx->progress_fd * -1;
 632                         }
 633                         if (!ctx->progress_fd)
 634                                 break;
 635                         /* Validate the file descriptor to avoid disasters */
 636                         fd = dup(ctx->progress_fd);
 637                         if (fd < 0) {
 638                                 fprintf(stderr,
 639                                 _("Error validating file descriptor %d: %s\n"),
 640                                         ctx->progress_fd,
 641                                         error_message(errno));
 642                                 fatal_error(ctx,
 643                         _("Invalid completion information file descriptor"));
 644                         } else
 645                                 close(fd);
 646                         break;
 647                 case 'D':
 648                         ctx->options |= E2F_OPT_COMPRESS_DIRS;
 649                         break;
 650                 case 'E':
 651                         extended_opts = optarg;
 652                         break;
 653                 case 'p':
 654                 case 'a':
 655                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
 656                         conflict_opt:
 657                                 fatal_error(ctx,
 658         _("Only one of the options -p/-a, -n or -y may be specified."));
 659                         }
 660                         ctx->options |= E2F_OPT_PREEN;
 661                         break;
 662                 case 'n':
 663                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
 664                                 goto conflict_opt;
 665                         ctx->options |= E2F_OPT_NO;
 666                         break;
 667                 case 'y':
 668                         if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
 669                                 goto conflict_opt;
 670                         ctx->options |= E2F_OPT_YES;
 671                         break;
 672                 case 't':
 673 #ifdef RESOURCE_TRACK
 674                         if (ctx->options & E2F_OPT_TIME)
 675                                 ctx->options |= E2F_OPT_TIME2;
 676                         else
 677                                 ctx->options |= E2F_OPT_TIME;
 678 #else
 679                         fprintf(stderr, _("The -t option is not "
 680                                 "supported on this version of e2fsck.\n"));
 681 #endif
 682                         break;
 683                 case 'c':
 684                         if (cflag++)
 685                                 ctx->options |= E2F_OPT_WRITECHECK;
 686                         ctx->options |= E2F_OPT_CHECKBLOCKS;
 687                         break;
 688                 case 'r':
 689                         /* What we do by default, anyway! */
 690                         break;
 691                 case 'b':
 692                         res = sscanf(optarg, "%d", &ctx->use_superblock);
 693                         if (res != 1)
 694                                 goto sscanf_err;
 695                         ctx->flags |= E2F_FLAG_SB_SPECIFIED;
 696                         break;
 697                 case 'B':
 698                         ctx->blocksize = atoi(optarg);
 699                         break;
 700                 case 'I':
 701                         res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
 702                         if (res != 1)
 703                                 goto sscanf_err;
 704                         break;
 705                 case 'j':
 706                         ctx->journal_name = string_copy(ctx, optarg, 0);
 707                         break;
 708                 case 'P':
 709                         res = sscanf(optarg, "%d", &ctx->process_inode_size);
 710                         if (res != 1)
 711                                 goto sscanf_err;
 712                         break;
 713                 case 'L':
 714                         replace_bad_blocks++;
 715                 case 'l':
 716                         bad_blocks_file = string_copy(ctx, optarg, 0);
 717                         break;
 718                 case 'd':
 719                         ctx->options |= E2F_OPT_DEBUG;
 720                         break;
 721                 case 'f':
 722                         ctx->options |= E2F_OPT_FORCE;
 723                         break;
 724                 case 'F':
 725                         flush = 1;
 726                         break;
 727                 case 'v':
 728                         verbose = 1;
 729                         break;
 730                 case 'V':
 731                         show_version_only = 1;
 732                         break;
 733 #ifdef MTRACE
 734                 case 'M':
 735                         mallwatch = (void *) strtol(optarg, NULL, 0);
 736                         break;
 737 #endif
 738                 case 'N':
 739                         ctx->device_name = string_copy(ctx, optarg, 0);
 740                         break;
 741                 case 'k':
 742                         keep_bad_blocks++;
 743                         break;
 744                 default:
 745                         usage(ctx);
 746                 }
 747         if (show_version_only)
 748                 return 0;
 749         if (optind != argc - 1)
 750                 usage(ctx);
 751         if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file &&
 752             !cflag && !(ctx->options & E2F_OPT_COMPRESS_DIRS))
 753                 ctx->options |= E2F_OPT_READONLY;
 754
 755         ctx->io_options = strchr(argv[optind], '?');
 756         if (ctx->io_options)
 757                 *ctx->io_options++ = 0;
 758         ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
 759         if (!ctx->filesystem_name) {
 760                 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
 761                         argv[optind]);
 762                 fatal_error(ctx, 0);
 763         }
 764         ctx->filesystem_name = string_copy(ctx, ctx->filesystem_name, 0);
 765         if (extended_opts)
 766                 parse_extended_opts(ctx, extended_opts);
 767
 768         if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
 769                 config_fn[0] = cp;
 770         profile_set_syntax_err_cb(syntax_err_report);
 771         profile_init(config_fn, &ctx->profile);
 772
 773         if (flush) {
 774                 fd = open(ctx->filesystem_name, O_RDONLY, 0);
 775                 if (fd < 0) {
 776                         com_err("open", errno,
 777                                 _("while opening %s for flushing"),
 778                                 ctx->filesystem_name);
 779                         fatal_error(ctx, 0);
 780                 }
 781                 if ((retval = ext2fs_sync_device(fd, 1))) {
 782                         com_err("ext2fs_sync_device", retval,
 783                                 _("while trying to flush %s"),
 784                                 ctx->filesystem_name);
 785                         fatal_error(ctx, 0);
 786                 }
 787                 close(fd);
 788         }
 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         jbd_debug = getenv("E2FSCK_JBD_DEBUG");
 834         if (jbd_debug) {
 835                 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
 836                 if (res != 1) {
 837                         fprintf(stderr,
 838                                 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
 839                                 jbd_debug);
 840                         exit (1);
 841                 }
 842         }
 843 #endif
 844         return 0;
 845
 846 sscanf_err:
 847         fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
 848                 c, optarg);
 849         exit (1);
 850 }
 851
 852 static const char *my_ver_string = E2FSPROGS_VERSION;
 853 static const char *my_ver_date = E2FSPROGS_DATE;
 854
 855 int main (int argc, char *argv[])
 856 {
 857         errcode_t       retval = 0, orig_retval = 0;
 858         int             exit_value = FSCK_OK;
 859         ext2_filsys     fs = 0;
 860         io_manager      io_ptr;
 861         struct ext2_super_block *sb;
 862         const char      *lib_ver_date;
 863         int             my_ver, lib_ver;
 864         e2fsck_t        ctx;
 865         struct problem_context pctx;
 866         int flags, run_result;
 867         int journal_size;
 868         int sysval, sys_page_size = 4096;
 869         __u32 features[3];
 870         char *cp;
 871
 872         clear_problem_context(&pctx);
 873 #ifdef MTRACE
 874         mtrace();
 875 #endif
 876 #ifdef MCHECK
 877         mcheck(0);
 878 #endif
 879 #ifdef ENABLE_NLS
 880         setlocale(LC_MESSAGES, "");
 881         setlocale(LC_CTYPE, "");
 882         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 883         textdomain(NLS_CAT_NAME);
 884 #endif
 885         my_ver = ext2fs_parse_version_string(my_ver_string);
 886         lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
 887         if (my_ver > lib_ver) {
 888                 fprintf( stderr, _("Error: ext2fs library version "
 889                         "out of date!\n"));
 890                 show_version_only++;
 891         }
 892
 893         retval = PRS(argc, argv, &ctx);
 894         if (retval) {
 895                 com_err("e2fsck", retval,
 896                         _("while trying to initialize program"));
 897                 exit(FSCK_ERROR);
 898         }
 899         reserve_stdio_fds();
 900
 901 #ifdef RESOURCE_TRACK
 902         init_resource_track(&ctx->global_rtrack, NULL);
 903 #endif
 904
 905         if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
 906                 fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string,
 907                          my_ver_date);
 908
 909         if (show_version_only) {
 910                 fprintf(stderr, _("\tUsing %s, %s\n"),
 911                         error_message(EXT2_ET_BASE), lib_ver_date);
 912                 exit(FSCK_OK);
 913         }
 914
 915         check_mount(ctx);
 916
 917         if (!(ctx->options & E2F_OPT_PREEN) &&
 918             !(ctx->options & E2F_OPT_NO) &&
 919             !(ctx->options & E2F_OPT_YES)) {
 920                 if (!ctx->interactive)
 921                         fatal_error(ctx,
 922                                     _("need terminal for interactive repairs"));
 923         }
 924         ctx->superblock = ctx->use_superblock;
 925 restart:
 926 #ifdef CONFIG_TESTIO_DEBUG
 927         io_ptr = test_io_manager;
 928         test_io_backing_manager = unix_io_manager;
 929 #else
 930         io_ptr = unix_io_manager;
 931 #endif
 932         flags = EXT2_FLAG_NOFREE_ON_ERROR;
 933         if ((ctx->options & E2F_OPT_READONLY) == 0)
 934                 flags |= EXT2_FLAG_RW;
 935         if ((ctx->mount_flags & EXT2_MF_MOUNTED) == 0)
 936                 flags |= EXT2_FLAG_EXCLUSIVE;
 937
 938         if (ctx->superblock && ctx->blocksize) {
 939                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 940                                       flags, ctx->superblock, ctx->blocksize,
 941                                       io_ptr, &fs);
 942         } else if (ctx->superblock) {
 943                 int blocksize;
 944                 for (blocksize = EXT2_MIN_BLOCK_SIZE;
 945                      blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
 946                         retval = ext2fs_open2(ctx->filesystem_name,
 947                                               ctx->io_options, flags,
 948                                               ctx->superblock, blocksize,
 949                                               io_ptr, &fs);
 950                         if (!retval)
 951                                 break;
 952                 }
 953         } else
 954                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 955                                       flags, 0, 0, io_ptr, &fs);
 956         if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
 957             !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
 958             ((retval == EXT2_ET_BAD_MAGIC) ||
 959              (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
 960              ((retval == 0) && ext2fs_check_desc(fs)))) {
 961                 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
 962                         ext2fs_free(fs);
 963                         fs = NULL;
 964                 }
 965                 if (!fs || (fs->group_desc_count > 1)) {
 966                         printf(_("%s: %s trying backup blocks...\n"),
 967                                ctx->program_name,
 968                                retval ? _("Superblock invalid,") :
 969                                _("Group descriptors look bad..."));
 970                         get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
 971                         if (fs)
 972                                 ext2fs_close(fs);
 973                         orig_retval = retval;
 974                         goto restart;
 975                 }
 976         }
 977         if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
 978              (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
 979             fs && fs->super) {
 980                 sb = fs->super;
 981                 features[0] = (sb->s_feature_compat &
 982                                ~EXT2_LIB_FEATURE_COMPAT_SUPP);
 983                 features[1] = (sb->s_feature_incompat &
 984                                ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
 985                 features[2] = (sb->s_feature_ro_compat &
 986                                ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
 987                 if (features[0] || features[1] || features[2])
 988                         goto print_unsupp_features;
 989         }
 990         if (retval) {
 991                 if (orig_retval)
 992                         retval = orig_retval;
 993                 com_err(ctx->program_name, retval, _("while trying to open %s"),
 994                         ctx->filesystem_name);
 995                 if (retval == EXT2_ET_REV_TOO_HIGH) {
 996                         printf(_("The filesystem revision is apparently "
 997                                "too high for this version of e2fsck.\n"
 998                                "(Or the filesystem superblock "
 999                                "is corrupt)\n\n"));
1000                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1001                 } else if (retval == EXT2_ET_SHORT_READ)
1002                         printf(_("Could this be a zero-length partition?\n"));
1003                 else if ((retval == EPERM) || (retval == EACCES))
1004                         printf(_("You must have %s access to the "
1005                                "filesystem or be root\n"),
1006                                (ctx->options & E2F_OPT_READONLY) ?
1007                                "r/o" : "r/w");
1008                 else if (retval == ENXIO)
1009                         printf(_("Possibly non-existent or swap device?\n"));
1010                 else if (retval == EBUSY)
1011                         printf(_("Filesystem mounted or opened exclusively "
1012                                  "by another program?\n"));
1013 #ifdef EROFS
1014                 else if (retval == EROFS)
1015                         printf(_("Disk write-protected; use the -n option "
1016                                "to do a read-only\n"
1017                                "check of the device.\n"));
1018 #endif
1019                 else
1020                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1021                 fatal_error(ctx, 0);
1022         }
1023         /*
1024          * We only update the master superblock because (a) paranoia;
1025          * we don't want to corrupt the backup superblocks, and (b) we
1026          * don't need to update the mount count and last checked
1027          * fields in the backup superblock (the kernel doesn't update
1028          * the backup superblocks anyway).  With newer versions of the
1029          * library this flag is set by ext2fs_open2(), but we set this
1030          * here just to be sure.  (No, we don't support e2fsck running
1031          * with some other libext2fs than the one that it was shipped
1032          * with, but just in case....)
1033          */
1034         fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1035
1036         if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1037                 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1038                 int need_restart = 0;
1039
1040                 pctx.errcode = ext2fs_get_device_size(ctx->filesystem_name,
1041                                                       blocksize,
1042                                                       &ctx->num_blocks);
1043                 /*
1044                  * The floppy driver refuses to allow anyone else to
1045                  * open the device if has been opened with O_EXCL;
1046                  * this is unlike other block device drivers in Linux.
1047                  * To handle this, we close the filesystem and then
1048                  * reopen the filesystem after we get the device size.
1049                  */
1050                 if (pctx.errcode == EBUSY) {
1051                         ext2fs_close(fs);
1052                         need_restart++;
1053                         pctx.errcode =
1054                                 ext2fs_get_device_size(ctx->filesystem_name,
1055                                                        blocksize,
1056                                                        &ctx->num_blocks);
1057                 }
1058                 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1059                         ctx->num_blocks = 0;
1060                 else if (pctx.errcode) {
1061                         fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1062                         ctx->flags |= E2F_FLAG_ABORT;
1063                         fatal_error(ctx, 0);
1064                 }
1065                 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1066                 if (need_restart)
1067                         goto restart;
1068         }
1069
1070         ctx->fs = fs;
1071         fs->priv_data = ctx;
1072         fs->now = ctx->now;
1073         sb = fs->super;
1074         if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1075                 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1076                         _("while trying to open %s"),
1077                         ctx->filesystem_name);
1078         get_newer:
1079                 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1080         }
1081
1082         /*
1083          * Set the device name, which is used whenever we print error
1084          * or informational messages to the user.
1085          */
1086         if (ctx->device_name == 0 &&
1087             (sb->s_volume_name[0] != 0)) {
1088                 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1089                                                sizeof(sb->s_volume_name));
1090         }
1091         if (ctx->device_name == 0)
1092                 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1093         for (cp = ctx->device_name; *cp; cp++)
1094                 if (isspace(*cp) || *cp == ':')
1095                         *cp = '_';
1096
1097         /*
1098          * Make sure the ext3 superblock fields are consistent.
1099          */
1100         retval = e2fsck_check_ext3_journal(ctx);
1101         if (retval) {
1102                 com_err(ctx->program_name, retval,
1103                         _("while checking ext3 journal for %s"),
1104                         ctx->device_name);
1105                 fatal_error(ctx, 0);
1106         }
1107
1108         /*
1109          * Check to see if we need to do ext3-style recovery.  If so,
1110          * do it, and then restart the fsck.
1111          */
1112         if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1113                 if (ctx->options & E2F_OPT_READONLY) {
1114                         printf(_("Warning: skipping journal recovery "
1115                                  "because doing a read-only filesystem "
1116                                  "check.\n"));
1117                         io_channel_flush(ctx->fs->io);
1118                 } else {
1119                         if (ctx->flags & E2F_FLAG_RESTARTED) {
1120                                 /*
1121                                  * Whoops, we attempted to run the
1122                                  * journal twice.  This should never
1123                                  * happen, unless the hardware or
1124                                  * device driver is being bogus.
1125                                  */
1126                                 com_err(ctx->program_name, 0,
1127                                         _("unable to set superblock flags on %s\n"), ctx->device_name);
1128                                 fatal_error(ctx, 0);
1129                         }
1130                         retval = e2fsck_run_ext3_journal(ctx);
1131                         if (retval) {
1132                                 com_err(ctx->program_name, retval,
1133                                 _("while recovering ext3 journal of %s"),
1134                                         ctx->device_name);
1135                                 fatal_error(ctx, 0);
1136                         }
1137                         ext2fs_close(ctx->fs);
1138                         ctx->fs = 0;
1139                         ctx->flags |= E2F_FLAG_RESTARTED;
1140                         goto restart;
1141                 }
1142         }
1143
1144         /*
1145          * Check for compatibility with the feature sets.  We need to
1146          * be more stringent than ext2fs_open().
1147          */
1148         features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1149         features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1150         features[2] = (sb->s_feature_ro_compat &
1151                        ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1152 print_unsupp_features:
1153         if (features[0] || features[1] || features[2]) {
1154                 int     i, j;
1155                 __u32   *mask = features, m;
1156
1157                 fprintf(stderr, _("%s has unsupported feature(s):"),
1158                         ctx->filesystem_name);
1159
1160                 for (i=0; i <3; i++,mask++) {
1161                         for (j=0,m=1; j < 32; j++, m<<=1) {
1162                                 if (*mask & m)
1163                                         fprintf(stderr, " %s",
1164                                                 e2p_feature2string(i, m));
1165                         }
1166                 }
1167                 putc('\n', stderr);
1168                 goto get_newer;
1169         }
1170 #ifdef ENABLE_COMPRESSION
1171         if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
1172                 com_err(ctx->program_name, 0,
1173                         _("Warning: compression support is experimental.\n"));
1174 #endif
1175 #ifndef ENABLE_HTREE
1176         if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1177                 com_err(ctx->program_name, 0,
1178                         _("E2fsck not compiled with HTREE support,\n\t"
1179                           "but filesystem %s has HTREE directories.\n"),
1180                         ctx->device_name);
1181                 goto get_newer;
1182         }
1183 #endif
1184
1185         /*
1186          * If the user specified a specific superblock, presumably the
1187          * master superblock has been trashed.  So we mark the
1188          * superblock as dirty, so it can be written out.
1189          */
1190         if (ctx->superblock &&
1191             !(ctx->options & E2F_OPT_READONLY))
1192                 ext2fs_mark_super_dirty(fs);
1193
1194         /*
1195          * Calculate the number of filesystem blocks per pagesize.  If
1196          * fs->blocksize > page_size, set the number of blocks per
1197          * pagesize to 1 to avoid division by zero errors.
1198          */
1199 #ifdef _SC_PAGESIZE
1200         sysval = sysconf(_SC_PAGESIZE);
1201         if (sysval > 0)
1202                 sys_page_size = sysval;
1203 #endif /* _SC_PAGESIZE */
1204         ctx->blocks_per_page = sys_page_size / fs->blocksize;
1205         if (ctx->blocks_per_page == 0)
1206                 ctx->blocks_per_page = 1;
1207
1208         ehandler_init(fs->io);
1209
1210         if (ctx->superblock)
1211                 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1212         ext2fs_mark_valid(fs);
1213         check_super_block(ctx);
1214         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1215                 fatal_error(ctx, 0);
1216         check_if_skip(ctx);
1217         if (bad_blocks_file)
1218                 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1219         else if (cflag)
1220                 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1221         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1222                 fatal_error(ctx, 0);
1223
1224         /*
1225          * Mark the system as valid, 'til proven otherwise
1226          */
1227         ext2fs_mark_valid(fs);
1228
1229         retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1230         if (retval) {
1231                 com_err(ctx->program_name, retval,
1232                         _("while reading bad blocks inode"));
1233                 preenhalt(ctx);
1234                 printf(_("This doesn't bode well,"
1235                          " but we'll try to go on...\n"));
1236         }
1237
1238         /*
1239          * Save the journal size in megabytes.
1240          * Try and use the journal size from the backup else let e2fsck
1241          * find the default journal size.
1242          */
1243         if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1244                 journal_size = sb->s_jnl_blocks[16] >> 20;
1245         else
1246                 journal_size = -1;
1247
1248         run_result = e2fsck_run(ctx);
1249         e2fsck_clear_progbar(ctx);
1250
1251         if (ctx->flags & E2F_FLAG_JOURNAL_INODE) {
1252                 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1253                         if (journal_size < 1024)
1254                                 journal_size = ext2fs_default_journal_size(fs->super->s_blocks_count);
1255                         if (journal_size < 0) {
1256                                 fs->super->s_feature_compat &=
1257                                         ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1258                                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1259                                 com_err(ctx->program_name, 0,
1260                                         _("Couldn't determine journal size"));
1261                                 goto no_journal;
1262                         }
1263                         printf(_("Creating journal (%d blocks): "),
1264                                journal_size);
1265                         fflush(stdout);
1266                         retval = ext2fs_add_journal_inode(fs,
1267                                                           journal_size, 0);
1268                         if (retval) {
1269                                 com_err("Error ", retval,
1270                                         _("\n\twhile trying to create journal"));
1271                                 goto no_journal;
1272                         }
1273                         printf(_(" Done.\n"));
1274                         printf(_("\n*** journal has been re-created - "
1275                                        "filesystem is now ext3 again ***\n"));
1276                 }
1277         }
1278 no_journal:
1279
1280         if (run_result == E2F_FLAG_RESTART) {
1281                 printf(_("Restarting e2fsck from the beginning...\n"));
1282                 retval = e2fsck_reset_context(ctx);
1283                 if (retval) {
1284                         com_err(ctx->program_name, retval,
1285                                 _("while resetting context"));
1286                         fatal_error(ctx, 0);
1287                 }
1288                 ext2fs_close(fs);
1289                 goto restart;
1290         }
1291         if (run_result & E2F_FLAG_CANCEL) {
1292                 printf(_("%s: e2fsck canceled.\n"), ctx->device_name ?
1293                        ctx->device_name : ctx->filesystem_name);
1294                 exit_value |= FSCK_CANCELED;
1295         }
1296         if (run_result & E2F_FLAG_ABORT)
1297                 fatal_error(ctx, _("aborted"));
1298         if (check_backup_super_block(ctx)) {
1299                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1300                 ext2fs_mark_super_dirty(fs);
1301         }
1302
1303 #ifdef MTRACE
1304         mtrace_print("Cleanup");
1305 #endif
1306         if (ext2fs_test_changed(fs)) {
1307                 exit_value |= FSCK_NONDESTRUCT;
1308                 if (!(ctx->options & E2F_OPT_PREEN))
1309                     printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1310                                ctx->device_name);
1311                 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1312                         printf(_("%s: ***** REBOOT LINUX *****\n"),
1313                                ctx->device_name);
1314                         exit_value |= FSCK_REBOOT;
1315                 }
1316         }
1317         if (!ext2fs_test_valid(fs) ||
1318             ((exit_value & FSCK_CANCELED) &&
1319              (sb->s_state & EXT2_ERROR_FS))) {
1320                 printf(_("\n%s: ********** WARNING: Filesystem still has "
1321                          "errors **********\n\n"), ctx->device_name);
1322                 exit_value |= FSCK_UNCORRECTED;
1323                 exit_value &= ~FSCK_NONDESTRUCT;
1324         }
1325         if (exit_value & FSCK_CANCELED) {
1326                 int     allow_cancellation;
1327
1328                 profile_get_boolean(ctx->profile, "options",
1329                                     "allow_cancellation", 0, 0,
1330                                     &allow_cancellation);
1331                 exit_value &= ~FSCK_NONDESTRUCT;
1332                 if (allow_cancellation && ext2fs_test_valid(fs) &&
1333                     (sb->s_state & EXT2_VALID_FS) &&
1334                     !(sb->s_state & EXT2_ERROR_FS))
1335                         exit_value = 0;
1336         } else {
1337                 show_stats(ctx);
1338                 if (!(ctx->options & E2F_OPT_READONLY)) {
1339                         if (ext2fs_test_valid(fs)) {
1340                                 if (!(sb->s_state & EXT2_VALID_FS))
1341                                         exit_value |= FSCK_NONDESTRUCT;
1342                                 sb->s_state = EXT2_VALID_FS;
1343                         } else
1344                                 sb->s_state &= ~EXT2_VALID_FS;
1345                         sb->s_mnt_count = 0;
1346                         sb->s_lastcheck = ctx->now;
1347                         ext2fs_mark_super_dirty(fs);
1348                 }
1349         }
1350
1351         if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM &&
1352             !(ctx->options & E2F_OPT_READONLY))
1353                 ext2fs_set_gdt_csum(ctx->fs);
1354
1355         e2fsck_write_bitmaps(ctx);
1356 #ifdef RESOURCE_TRACK
1357         io_channel_flush(ctx->fs->io);
1358         if (ctx->options & E2F_OPT_TIME)
1359                 print_resource_track(NULL, &ctx->global_rtrack, ctx->fs->io);
1360 #endif
1361         ext2fs_close(fs);
1362         ctx->fs = NULL;
1363         free(ctx->filesystem_name);
1364         free(ctx->journal_name);
1365
1366         e2fsck_free_context(ctx);
1367         remove_error_table(&et_ext2_error_table);
1368         remove_error_table(&et_prof_error_table);
1369         return exit_value;
1370 }