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 "e2p/e2p.h"
  51 #include "e2fsck.h"
  52 #include "problem.h"
  53 #include "../version.h"
  54
  55 /* Command line options */
  56 static int cflag;               /* check disk */
  57 static int show_version_only;
  58 static int verbose;
  59
  60 static int replace_bad_blocks;
  61 static int keep_bad_blocks;
  62 static char *bad_blocks_file;
  63
  64 e2fsck_t e2fsck_global_ctx;     /* Try your very best not to use this! */
  65
  66 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jfs-debug */
  67 int journal_enable_debug = -1;
  68 #endif
  69
  70 static void usage(e2fsck_t ctx)
  71 {
  72         fprintf(stderr,
  73                 _("Usage: %s [-panyrcdfvtDFV] [-b superblock] [-B blocksize]\n"
  74                 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
  75                 "\t\t[-l|-L bad_blocks_file] [-C fd] [-j external_journal]\n"
  76                 "\t\t[-E extended-options] device\n"),
  77                 ctx->program_name);
  78
  79         fprintf(stderr, _("\nEmergency help:\n"
  80                 " -p                   Automatic repair (no questions)\n"
  81                 " -n                   Make no changes to the filesystem\n"
  82                 " -y                   Assume \"yes\" to all questions\n"
  83                 " -c                   Check for bad blocks and add them to the badblock list\n"
  84                 " -f                   Force checking even if filesystem is marked clean\n"));
  85         fprintf(stderr, _(""
  86                 " -v                   Be verbose\n"
  87                 " -b superblock        Use alternative superblock\n"
  88                 " -B blocksize         Force blocksize when looking for superblock\n"
  89                 " -j external_journal  Set location of the external journal\n"
  90                 " -l bad_blocks_file   Add to badblocks list\n"
  91                 " -L bad_blocks_file   Set badblocks list\n"
  92                 ));
  93
  94         exit(FSCK_USAGE);
  95 }
  96
  97 static void show_stats(e2fsck_t ctx)
  98 {
  99         ext2_filsys fs = ctx->fs;
 100         ext2_ino_t inodes, inodes_used;
 101         blk_t blocks, blocks_used;
 102         int dir_links;
 103         int num_files, num_links;
 104         int frag_percent;
 105
 106         dir_links = 2 * ctx->fs_directory_count - 1;
 107         num_files = ctx->fs_total_count - dir_links;
 108         num_links = ctx->fs_links_count - dir_links;
 109         inodes = fs->super->s_inodes_count;
 110         inodes_used = (fs->super->s_inodes_count -
 111                        fs->super->s_free_inodes_count);
 112         blocks = fs->super->s_blocks_count;
 113         blocks_used = (fs->super->s_blocks_count -
 114                        fs->super->s_free_blocks_count);
 115
 116         frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
 117         frag_percent = (frag_percent + 5) / 10;
 118
 119         if (!verbose) {
 120                 printf(_("%s: %u/%u files (%0d.%d%% non-contiguous), %u/%u blocks\n"),
 121                        ctx->device_name, inodes_used, inodes,
 122                        frag_percent / 10, frag_percent % 10,
 123                        blocks_used, blocks);
 124                 return;
 125         }
 126         printf (P_("\n%8u inode used (%2.2f%%)\n", "\n%8u inodes used (%2.2f%%)\n",
 127                    inodes_used), inodes_used, 100.0 * inodes_used / inodes);
 128         printf (P_("%8u non-contiguous inode (%0d.%d%%)\n",
 129                    "%8u non-contiguous inodes (%0d.%d%%)\n",
 130                    ctx->fs_fragmented),
 131                 ctx->fs_fragmented, frag_percent / 10, frag_percent % 10);
 132         printf (_("         # of inodes with ind/dind/tind blocks: %u/%u/%u\n"),
 133                 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
 134         printf (P_("%8u block used (%2.2f%%)\n", "%8u blocks used (%2.2f%%)\n",
 135                    blocks_used), blocks_used, 100.0 * blocks_used / blocks);
 136         printf (P_("%8u bad block\n", "%8u bad blocks\n",
 137                    ctx->fs_badblocks_count), ctx->fs_badblocks_count);
 138         printf (P_("%8u large file\n", "%8u large files\n",
 139                    ctx->large_files), ctx->large_files);
 140         printf (P_("\n%8u regular file\n", "\n%8u regular files\n",
 141                    ctx->fs_regular_count), ctx->fs_regular_count);
 142         printf (P_("%8u directory\n", "%8u directories\n",
 143                    ctx->fs_directory_count), ctx->fs_directory_count);
 144         printf (P_("%8u character device file\n",
 145                    "%8u character device files\n", ctx->fs_chardev_count),
 146                 ctx->fs_chardev_count);
 147         printf (P_("%8u block device file\n", "%8u block device files\n",
 148                    ctx->fs_blockdev_count), ctx->fs_blockdev_count);
 149         printf (P_("%8u fifo\n", "%8u fifos\n", ctx->fs_fifo_count),
 150                 ctx->fs_fifo_count);
 151         printf (P_("%8u link\n", "%8u links\n",
 152                    ctx->fs_links_count - dir_links),
 153                 ctx->fs_links_count - dir_links);
 154         printf (P_("%8u symbolic link", "%8u symbolic links",
 155                    ctx->fs_symlinks_count), ctx->fs_symlinks_count);
 156         printf (P_(" (%u fast symbolic link)\n", " (%u fast symbolic links)\n",
 157                    ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count);
 158         printf (P_("%8u socket\n", "%8u sockets\n", ctx->fs_sockets_count),
 159                 ctx->fs_sockets_count);
 160         printf ("--------\n");
 161         printf (P_("%8u file\n", "%8u files\n",
 162                    ctx->fs_total_count - dir_links),
 163                 ctx->fs_total_count - dir_links);
 164 }
 165
 166 static void check_mount(e2fsck_t ctx)
 167 {
 168         errcode_t       retval;
 169         int             cont;
 170
 171         retval = ext2fs_check_if_mounted(ctx->filesystem_name,
 172                                          &ctx->mount_flags);
 173         if (retval) {
 174                 com_err("ext2fs_check_if_mount", retval,
 175                         _("while determining whether %s is mounted."),
 176                         ctx->filesystem_name);
 177                 return;
 178         }
 179
 180         /*
 181          * If the filesystem isn't mounted, or it's the root
 182          * filesystem and it's mounted read-only, and we're not doing
 183          * a read/write check, then everything's fine.
 184          */
 185         if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) ||
 186             ((ctx->mount_flags & EXT2_MF_ISROOT) &&
 187              (ctx->mount_flags & EXT2_MF_READONLY) &&
 188              !(ctx->options & E2F_OPT_WRITECHECK)))
 189                 return;
 190
 191         if ((ctx->options & E2F_OPT_READONLY) &&
 192             !(ctx->options & E2F_OPT_WRITECHECK)) {
 193                 printf(_("Warning!  %s is mounted.\n"), ctx->filesystem_name);
 194                 return;
 195         }
 196
 197         printf(_("%s is mounted.  "), ctx->filesystem_name);
 198         if (!ctx->interactive)
 199                 fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
 200         printf(_("\n\n\007\007\007\007WARNING!!!  "
 201                "Running e2fsck on a mounted filesystem may cause\n"
 202                "SEVERE filesystem damage.\007\007\007\n\n"));
 203         cont = ask_yn(_("Do you really want to continue"), -1);
 204         if (!cont) {
 205                 printf (_("check aborted.\n"));
 206                 exit (0);
 207         }
 208         return;
 209 }
 210
 211 static int is_on_batt(void)
 212 {
 213         FILE    *f;
 214         DIR     *d;
 215         char    tmp[80], tmp2[80], fname[80];
 216         unsigned int    acflag;
 217         struct dirent*  de;
 218
 219         f = fopen("/proc/apm", "r");
 220         if (f) {
 221                 if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
 222                         acflag = 1;
 223                 fclose(f);
 224                 return (acflag != 1);
 225         }
 226         d = opendir("/proc/acpi/ac_adapter");
 227         if (d) {
 228                 while ((de=readdir(d)) != NULL) {
 229                         if (!strncmp(".", de->d_name, 1))
 230                                 continue;
 231                         snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
 232                                  de->d_name);
 233                         f = fopen(fname, "r");
 234                         if (!f)
 235                                 continue;
 236                         if (fscanf(f, "%s %s", tmp2, tmp) != 2)
 237                                 tmp[0] = 0;
 238                         fclose(f);
 239                         if (strncmp(tmp, "off-line", 8) == 0) {
 240                                 closedir(d);
 241                                 return 1;
 242                         }
 243                 }
 244                 closedir(d);
 245         }
 246         return 0;
 247 }
 248
 249 /*
 250  * This routine checks to see if a filesystem can be skipped; if so,
 251  * it will exit with E2FSCK_OK.  Under some conditions it will print a
 252  * message explaining why a check is being forced.
 253  */
 254 static void check_if_skip(e2fsck_t ctx)
 255 {
 256         ext2_filsys fs = ctx->fs;
 257         const char *reason = NULL;
 258         unsigned int reason_arg = 0;
 259         long next_check;
 260         int batt = is_on_batt();
 261         int defer_check_on_battery;
 262         time_t lastcheck;
 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 || cflag)
 271                 return;
 272
 273         lastcheck = fs->super->s_lastcheck;
 274         if (lastcheck > ctx->now)
 275                 lastcheck -= ctx->time_fudge;
 276         if ((fs->super->s_state & EXT2_ERROR_FS) ||
 277             !ext2fs_test_valid(fs))
 278                 reason = _(" contains a file system with errors");
 279         else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 280                 reason = _(" was not cleanly unmounted");
 281         else if (check_backup_super_block(ctx))
 282                 reason = _(" primary superblock features different from backup");
 283         else if ((fs->super->s_max_mnt_count > 0) &&
 284                  (fs->super->s_mnt_count >=
 285                   (unsigned) fs->super->s_max_mnt_count)) {
 286                 reason = _(" has been mounted %u times without being checked");
 287                 reason_arg = fs->super->s_mnt_count;
 288                 if (batt && (fs->super->s_mnt_count <
 289                              (unsigned) fs->super->s_max_mnt_count*2))
 290                         reason = 0;
 291         } else if (fs->super->s_checkinterval &&
 292                    ((ctx->now - lastcheck) >= fs->super->s_checkinterval)) {
 293                 reason = _(" has gone %u days without being checked");
 294                 reason_arg = (ctx->now - fs->super->s_lastcheck)/(3600*24);
 295                 if (batt && ((ctx->now - fs->super->s_lastcheck) <
 296                              fs->super->s_checkinterval*2))
 297                         reason = 0;
 298         }
 299         if (reason) {
 300                 fputs(ctx->device_name, stdout);
 301                 printf(reason, reason_arg);
 302                 fputs(_(", check forced.\n"), stdout);
 303                 return;
 304         }
 305         printf(_("%s: clean, %u/%u files, %u/%u blocks"), ctx->device_name,
 306                fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 307                fs->super->s_inodes_count,
 308                fs->super->s_blocks_count - fs->super->s_free_blocks_count,
 309                fs->super->s_blocks_count);
 310         next_check = 100000;
 311         if (fs->super->s_max_mnt_count > 0) {
 312                 next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
 313                 if (next_check <= 0)
 314                         next_check = 1;
 315         }
 316         if (fs->super->s_checkinterval &&
 317             ((ctx->now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
 318                 next_check = 1;
 319         if (next_check <= 5) {
 320                 if (next_check == 1) {
 321                         if (batt)
 322                                 fputs(_(" (check deferred; on battery)"),
 323                                       stdout);
 324                         else
 325                                 fputs(_(" (check after next mount)"), stdout);
 326                 } else
 327                         printf(_(" (check in %ld mounts)"), next_check);
 328         }
 329         fputc('\n', stdout);
 330         ext2fs_close(fs);
 331         ctx->fs = NULL;
 332         e2fsck_free_context(ctx);
 333         exit(FSCK_OK);
 334 }
 335
 336 /*
 337  * For completion notice
 338  */
 339 struct percent_tbl {
 340         int     max_pass;
 341         int     table[32];
 342 };
 343 struct percent_tbl e2fsck_tbl = {
 344         5, { 0, 70, 90, 92,  95, 100 }
 345 };
 346 static char bar[128], spaces[128];
 347
 348 static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
 349                           int max)
 350 {
 351         float   percent;
 352
 353         if (pass <= 0)
 354                 return 0.0;
 355         if (pass > tbl->max_pass || max == 0)
 356                 return 100.0;
 357         percent = ((float) curr) / ((float) max);
 358         return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
 359                 + tbl->table[pass-1]);
 360 }
 361
 362 extern void e2fsck_clear_progbar(e2fsck_t ctx)
 363 {
 364         if (!(ctx->flags & E2F_FLAG_PROG_BAR))
 365                 return;
 366
 367         printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
 368                ctx->stop_meta);
 369         fflush(stdout);
 370         ctx->flags &= ~E2F_FLAG_PROG_BAR;
 371 }
 372
 373 int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
 374                            unsigned int dpynum)
 375 {
 376         static const char spinner[] = "\\|/-";
 377         int     i;
 378         unsigned int    tick;
 379         struct timeval  tv;
 380         int dpywidth;
 381         int fixed_percent;
 382
 383         if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
 384                 return 0;
 385
 386         /*
 387          * Calculate the new progress position.  If the
 388          * percentage hasn't changed, then we skip out right
 389          * away.
 390          */
 391         fixed_percent = (int) ((10 * percent) + 0.5);
 392         if (ctx->progress_last_percent == fixed_percent)
 393                 return 0;
 394         ctx->progress_last_percent = fixed_percent;
 395
 396         /*
 397          * If we've already updated the spinner once within
 398          * the last 1/8th of a second, no point doing it
 399          * again.
 400          */
 401         gettimeofday(&tv, NULL);
 402         tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
 403         if ((tick == ctx->progress_last_time) &&
 404             (fixed_percent != 0) && (fixed_percent != 1000))
 405                 return 0;
 406         ctx->progress_last_time = tick;
 407
 408         /*
 409          * Advance the spinner, and note that the progress bar
 410          * will be on the screen
 411          */
 412         ctx->progress_pos = (ctx->progress_pos+1) & 3;
 413         ctx->flags |= E2F_FLAG_PROG_BAR;
 414
 415         dpywidth = 66 - strlen(label);
 416         dpywidth = 8 * (dpywidth / 8);
 417         if (dpynum)
 418                 dpywidth -= 8;
 419
 420         i = ((percent * dpywidth) + 50) / 100;
 421         printf("%s%s: |%s%s", ctx->start_meta, label,
 422                bar + (sizeof(bar) - (i+1)),
 423                spaces + (sizeof(spaces) - (dpywidth - i + 1)));
 424         if (fixed_percent == 1000)
 425                 fputc('|', stdout);
 426         else
 427                 fputc(spinner[ctx->progress_pos & 3], stdout);
 428         printf(" %4.1f%%  ", percent);
 429         if (dpynum)
 430                 printf("%u\r", dpynum);
 431         else
 432                 fputs(" \r", stdout);
 433         fputs(ctx->stop_meta, stdout);
 434
 435         if (fixed_percent == 1000)
 436                 e2fsck_clear_progbar(ctx);
 437         fflush(stdout);
 438
 439         return 0;
 440 }
 441
 442 static int e2fsck_update_progress(e2fsck_t ctx, int pass,
 443                                   unsigned long cur, unsigned long max)
 444 {
 445         char buf[1024];
 446         float percent;
 447
 448         if (pass == 0)
 449                 return 0;
 450
 451         if (ctx->progress_fd) {
 452                 snprintf(buf, sizeof(buf), "%d %lu %lu %s\n",
 453                          pass, cur, max, ctx->device_name);
 454                 write(ctx->progress_fd, buf, strlen(buf));
 455         } else {
 456                 percent = calc_percent(&e2fsck_tbl, pass, cur, max);
 457                 e2fsck_simple_progress(ctx, ctx->device_name,
 458                                        percent, 0);
 459         }
 460         return 0;
 461 }
 462
 463 #define PATH_SET "PATH=/sbin"
 464
 465 static void reserve_stdio_fds(void)
 466 {
 467         int     fd;
 468
 469         while (1) {
 470                 fd = open("/dev/null", O_RDWR);
 471                 if (fd > 2)
 472                         break;
 473                 if (fd < 0) {
 474                         fprintf(stderr, _("ERROR: Couldn't open "
 475                                 "/dev/null (%s)\n"),
 476                                 strerror(errno));
 477                         break;
 478                 }
 479         }
 480         close(fd);
 481 }
 482
 483 #ifdef HAVE_SIGNAL_H
 484 static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
 485 {
 486         e2fsck_t ctx = e2fsck_global_ctx;
 487
 488         if (!ctx)
 489                 return;
 490
 491         ctx->progress = e2fsck_update_progress;
 492 }
 493
 494 static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
 495 {
 496         e2fsck_t ctx = e2fsck_global_ctx;
 497
 498         if (!ctx)
 499                 return;
 500
 501         e2fsck_clear_progbar(ctx);
 502         ctx->progress = 0;
 503 }
 504
 505 static void signal_cancel(int sig EXT2FS_ATTR((unused)))
 506 {
 507         e2fsck_t ctx = e2fsck_global_ctx;
 508
 509         if (!ctx)
 510                 exit(FSCK_CANCELED);
 511
 512         ctx->flags |= E2F_FLAG_CANCEL;
 513 }
 514 #endif
 515
 516 static void parse_extended_opts(e2fsck_t ctx, const char *opts)
 517 {
 518         char    *buf, *token, *next, *p, *arg;
 519         int     ea_ver;
 520         int     extended_usage = 0;
 521
 522         buf = string_copy(ctx, opts, 0);
 523         for (token = buf; token && *token; token = next) {
 524                 p = strchr(token, ',');
 525                 next = 0;
 526                 if (p) {
 527                         *p = 0;
 528                         next = p+1;
 529                 }
 530                 arg = strchr(token, '=');
 531                 if (arg) {
 532                         *arg = 0;
 533                         arg++;
 534                 }
 535                 if (strcmp(token, "ea_ver") == 0) {
 536                         if (!arg) {
 537                                 extended_usage++;
 538                                 continue;
 539                         }
 540                         ea_ver = strtoul(arg, &p, 0);
 541                         if (*p ||
 542                             ((ea_ver != 1) && (ea_ver != 2))) {
 543                                 fprintf(stderr,
 544                                         _("Invalid EA version.\n"));
 545                                 extended_usage++;
 546                                 continue;
 547                         }
 548                         ctx->ext_attr_ver = ea_ver;
 549                 } else {
 550                         fprintf(stderr, _("Unknown extended option: %s\n"),
 551                                 token);
 552                         extended_usage++;
 553                 }
 554         }
 555         free(buf);
 556
 557         if (extended_usage) {
 558                 fputs(("\nExtended options are separated by commas, "
 559                        "and may take an argument which\n"
 560                        "is set off by an equals ('=') sign.  "
 561                         "Valid extended options are:\n"
 562                        "\tea_ver=<ea_version (1 or 2)>\n\n"), stderr);
 563                 exit(1);
 564         }
 565 }
 566
 567 static void syntax_err_report(const char *filename, long err, int line_num)
 568 {
 569         fprintf(stderr,
 570                 _("Syntax error in e2fsck config file (%s, line #%d)\n\t%s\n"),
 571                 filename, line_num, error_message(err));
 572         exit(FSCK_ERROR);
 573 }
 574
 575 static const char *config_fn[] = { ROOT_SYSCONFDIR "/e2fsck.conf", 0 };
 576
 577 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
 578 {
 579         int             flush = 0;
 580         int             c, fd;
 581 #ifdef MTRACE
 582         extern void     *mallwatch;
 583 #endif
 584         e2fsck_t        ctx;
 585         errcode_t       retval;
 586 #ifdef HAVE_SIGNAL_H
 587         struct sigaction        sa;
 588 #endif
 589         char            *extended_opts = 0;
 590         char            *cp;
 591         int             res;            /* result of sscanf */
 592 #ifdef CONFIG_JBD_DEBUG
 593         char            *jbd_debug;
 594 #endif
 595
 596         retval = e2fsck_allocate_context(&ctx);
 597         if (retval)
 598                 return retval;
 599
 600         *ret_ctx = ctx;
 601
 602         setvbuf(stdout, NULL, _IONBF, BUFSIZ);
 603         setvbuf(stderr, NULL, _IONBF, BUFSIZ);
 604         if (isatty(0) && isatty(1)) {
 605                 ctx->interactive = 1;
 606         } else {
 607                 ctx->start_meta[0] = '\001';
 608                 ctx->stop_meta[0] = '\002';
 609         }
 610         memset(bar, '=', sizeof(bar)-1);
 611         memset(spaces, ' ', sizeof(spaces)-1);
 612         add_error_table(&et_ext2_error_table);
 613         add_error_table(&et_prof_error_table);
 614         blkid_get_cache(&ctx->blkid, NULL);
 615
 616         if (argc && *argv)
 617                 ctx->program_name = *argv;
 618         else
 619                 ctx->program_name = "e2fsck";
 620         while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
 621                 switch (c) {
 622                 case 'C':
 623                         ctx->progress = e2fsck_update_progress;
 624                         res = sscanf(optarg, "%d", &ctx->progress_fd);
 625                         if (res != 1)
 626                                 goto sscanf_err;
 627
 628                         if (ctx->progress_fd < 0) {
 629                                 ctx->progress = 0;
 630                                 ctx->progress_fd = ctx->progress_fd * -1;
 631                         }
 632                         if (!ctx->progress_fd)
 633                                 break;
 634                         /* Validate the file descriptor to avoid disasters */
 635                         fd = dup(ctx->progress_fd);
 636                         if (fd < 0) {
 637                                 fprintf(stderr,
 638                                 _("Error validating file descriptor %d: %s\n"),
 639                                         ctx->progress_fd,
 640                                         error_message(errno));
 641                                 fatal_error(ctx,
 642                         _("Invalid completion information file descriptor"));
 643                         } else
 644                                 close(fd);
 645                         break;
 646                 case 'D':
 647                         ctx->options |= E2F_OPT_COMPRESS_DIRS;
 648                         break;
 649                 case 'E':
 650                         extended_opts = optarg;
 651                         break;
 652                 case 'p':
 653                 case 'a':
 654                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
 655                         conflict_opt:
 656                                 fatal_error(ctx,
 657         _("Only one of the options -p/-a, -n or -y may be specified."));
 658                         }
 659                         ctx->options |= E2F_OPT_PREEN;
 660                         break;
 661                 case 'n':
 662                         if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
 663                                 goto conflict_opt;
 664                         ctx->options |= E2F_OPT_NO;
 665                         break;
 666                 case 'y':
 667                         if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
 668                                 goto conflict_opt;
 669                         ctx->options |= E2F_OPT_YES;
 670                         break;
 671                 case 't':
 672 #ifdef RESOURCE_TRACK
 673                         if (ctx->options & E2F_OPT_TIME)
 674                                 ctx->options |= E2F_OPT_TIME2;
 675                         else
 676                                 ctx->options |= E2F_OPT_TIME;
 677 #else
 678                         fprintf(stderr, _("The -t option is not "
 679                                 "supported on this version of e2fsck.\n"));
 680 #endif
 681                         break;
 682                 case 'c':
 683                         if (cflag++)
 684                                 ctx->options |= E2F_OPT_WRITECHECK;
 685                         ctx->options |= E2F_OPT_CHECKBLOCKS;
 686                         break;
 687                 case 'r':
 688                         /* What we do by default, anyway! */
 689                         break;
 690                 case 'b':
 691                         res = sscanf(optarg, "%d", &ctx->use_superblock);
 692                         if (res != 1)
 693                                 goto sscanf_err;
 694                         ctx->flags |= E2F_FLAG_SB_SPECIFIED;
 695                         break;
 696                 case 'B':
 697                         ctx->blocksize = atoi(optarg);
 698                         break;
 699                 case 'I':
 700                         res = sscanf(optarg, "%d", &ctx->inode_buffer_blocks);
 701                         if (res != 1)
 702                                 goto sscanf_err;
 703                         break;
 704                 case 'j':
 705                         ctx->journal_name = string_copy(ctx, optarg, 0);
 706                         break;
 707                 case 'P':
 708                         res = sscanf(optarg, "%d", &ctx->process_inode_size);
 709                         if (res != 1)
 710                                 goto sscanf_err;
 711                         break;
 712                 case 'L':
 713                         replace_bad_blocks++;
 714                 case 'l':
 715                         bad_blocks_file = string_copy(ctx, optarg, 0);
 716                         break;
 717                 case 'd':
 718                         ctx->options |= E2F_OPT_DEBUG;
 719                         break;
 720                 case 'f':
 721                         ctx->options |= E2F_OPT_FORCE;
 722                         break;
 723                 case 'F':
 724                         flush = 1;
 725                         break;
 726                 case 'v':
 727                         verbose = 1;
 728                         break;
 729                 case 'V':
 730                         show_version_only = 1;
 731                         break;
 732 #ifdef MTRACE
 733                 case 'M':
 734                         mallwatch = (void *) strtol(optarg, NULL, 0);
 735                         break;
 736 #endif
 737                 case 'N':
 738                         ctx->device_name = string_copy(ctx, optarg, 0);
 739                         break;
 740                 case 'k':
 741                         keep_bad_blocks++;
 742                         break;
 743                 default:
 744                         usage(ctx);
 745                 }
 746         if (show_version_only)
 747                 return 0;
 748         if (optind != argc - 1)
 749                 usage(ctx);
 750         if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file &&
 751             !cflag && !(ctx->options & E2F_OPT_COMPRESS_DIRS))
 752                 ctx->options |= E2F_OPT_READONLY;
 753
 754         ctx->io_options = strchr(argv[optind], '?');
 755         if (ctx->io_options)
 756                 *ctx->io_options++ = 0;
 757         ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
 758         if (!ctx->filesystem_name) {
 759                 com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
 760                         argv[optind]);
 761                 fatal_error(ctx, 0);
 762         }
 763         ctx->filesystem_name = string_copy(ctx, ctx->filesystem_name, 0);
 764         if (extended_opts)
 765                 parse_extended_opts(ctx, extended_opts);
 766
 767         if ((cp = getenv("E2FSCK_CONFIG")) != NULL)
 768                 config_fn[0] = cp;
 769         profile_set_syntax_err_cb(syntax_err_report);
 770         profile_init(config_fn, &ctx->profile);
 771
 772         if (flush) {
 773                 fd = open(ctx->filesystem_name, O_RDONLY, 0);
 774                 if (fd < 0) {
 775                         com_err("open", errno,
 776                                 _("while opening %s for flushing"),
 777                                 ctx->filesystem_name);
 778                         fatal_error(ctx, 0);
 779                 }
 780                 if ((retval = ext2fs_sync_device(fd, 1))) {
 781                         com_err("ext2fs_sync_device", retval,
 782                                 _("while trying to flush %s"),
 783                                 ctx->filesystem_name);
 784                         fatal_error(ctx, 0);
 785                 }
 786                 close(fd);
 787         }
 788         if (cflag && bad_blocks_file) {
 789                 fprintf(stderr, _("The -c and the -l/-L options may "
 790                                   "not be both used at the same time.\n"));
 791                 exit(FSCK_USAGE);
 792         }
 793 #ifdef HAVE_SIGNAL_H
 794         /*
 795          * Set up signal action
 796          */
 797         memset(&sa, 0, sizeof(struct sigaction));
 798         sa.sa_handler = signal_cancel;
 799         sigaction(SIGINT, &sa, 0);
 800         sigaction(SIGTERM, &sa, 0);
 801 #ifdef SA_RESTART
 802         sa.sa_flags = SA_RESTART;
 803 #endif
 804         e2fsck_global_ctx = ctx;
 805         sa.sa_handler = signal_progress_on;
 806         sigaction(SIGUSR1, &sa, 0);
 807         sa.sa_handler = signal_progress_off;
 808         sigaction(SIGUSR2, &sa, 0);
 809 #endif
 810
 811         /* Update our PATH to include /sbin if we need to run badblocks  */
 812         if (cflag) {
 813                 char *oldpath = getenv("PATH");
 814                 char *newpath;
 815                 int len = sizeof(PATH_SET) + 1;
 816
 817                 if (oldpath)
 818                         len += strlen(oldpath);
 819
 820                 newpath = malloc(len);
 821                 if (!newpath)
 822                         fatal_error(ctx, "Couldn't malloc() newpath");
 823                 strcpy(newpath, PATH_SET);
 824
 825                 if (oldpath) {
 826                         strcat(newpath, ":");
 827                         strcat(newpath, oldpath);
 828                 }
 829                 putenv(newpath);
 830         }
 831 #ifdef CONFIG_JBD_DEBUG
 832         jbd_debug = getenv("E2FSCK_JBD_DEBUG");
 833         if (jbd_debug) {
 834                 res = sscanf(jbd_debug, "%d", &journal_enable_debug);
 835                 if (res != 1) {
 836                         fprintf(stderr,
 837                                 _("E2FSCK_JBD_DEBUG \"%s\" not an integer\n\n"),
 838                                 jbd_debug);
 839                         exit (1);
 840                 }
 841         }
 842 #endif
 843         return 0;
 844
 845 sscanf_err:
 846         fprintf(stderr, _("\nInvalid non-numeric argument to -%c (\"%s\")\n\n"),
 847                 c, optarg);
 848         exit (1);
 849 }
 850
 851 static const char *my_ver_string = E2FSPROGS_VERSION;
 852 static const char *my_ver_date = E2FSPROGS_DATE;
 853
 854 int main (int argc, char *argv[])
 855 {
 856         errcode_t       retval = 0, orig_retval = 0;
 857         int             exit_value = FSCK_OK;
 858         ext2_filsys     fs = 0;
 859         io_manager      io_ptr;
 860         struct ext2_super_block *sb;
 861         const char      *lib_ver_date;
 862         int             my_ver, lib_ver;
 863         e2fsck_t        ctx;
 864         struct problem_context pctx;
 865         int flags, run_result;
 866         int journal_size;
 867         int sysval, sys_page_size = 4096;
 868         __u32 features[3];
 869         char *cp;
 870
 871         clear_problem_context(&pctx);
 872 #ifdef MTRACE
 873         mtrace();
 874 #endif
 875 #ifdef MCHECK
 876         mcheck(0);
 877 #endif
 878 #ifdef ENABLE_NLS
 879         setlocale(LC_MESSAGES, "");
 880         setlocale(LC_CTYPE, "");
 881         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 882         textdomain(NLS_CAT_NAME);
 883 #endif
 884         my_ver = ext2fs_parse_version_string(my_ver_string);
 885         lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
 886         if (my_ver > lib_ver) {
 887                 fprintf( stderr, _("Error: ext2fs library version "
 888                         "out of date!\n"));
 889                 show_version_only++;
 890         }
 891
 892         retval = PRS(argc, argv, &ctx);
 893         if (retval) {
 894                 com_err("e2fsck", retval,
 895                         _("while trying to initialize program"));
 896                 exit(FSCK_ERROR);
 897         }
 898         reserve_stdio_fds();
 899
 900 #ifdef RESOURCE_TRACK
 901         init_resource_track(&ctx->global_rtrack, NULL);
 902 #endif
 903
 904         if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
 905                 fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string,
 906                          my_ver_date);
 907
 908         if (show_version_only) {
 909                 fprintf(stderr, _("\tUsing %s, %s\n"),
 910                         error_message(EXT2_ET_BASE), lib_ver_date);
 911                 exit(FSCK_OK);
 912         }
 913
 914         check_mount(ctx);
 915
 916         if (!(ctx->options & E2F_OPT_PREEN) &&
 917             !(ctx->options & E2F_OPT_NO) &&
 918             !(ctx->options & E2F_OPT_YES)) {
 919                 if (!ctx->interactive)
 920                         fatal_error(ctx,
 921                                     _("need terminal for interactive repairs"));
 922         }
 923         ctx->superblock = ctx->use_superblock;
 924 restart:
 925 #ifdef CONFIG_TESTIO_DEBUG
 926         io_ptr = test_io_manager;
 927         test_io_backing_manager = unix_io_manager;
 928 #else
 929         io_ptr = unix_io_manager;
 930 #endif
 931         flags = EXT2_FLAG_NOFREE_ON_ERROR;
 932         if ((ctx->options & E2F_OPT_READONLY) == 0)
 933                 flags |= EXT2_FLAG_RW;
 934         if ((ctx->mount_flags & EXT2_MF_MOUNTED) == 0)
 935                 flags |= EXT2_FLAG_EXCLUSIVE;
 936
 937         if (ctx->superblock && ctx->blocksize) {
 938                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 939                                       flags, ctx->superblock, ctx->blocksize,
 940                                       io_ptr, &fs);
 941         } else if (ctx->superblock) {
 942                 int blocksize;
 943                 for (blocksize = EXT2_MIN_BLOCK_SIZE;
 944                      blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
 945                         retval = ext2fs_open2(ctx->filesystem_name,
 946                                               ctx->io_options, flags,
 947                                               ctx->superblock, blocksize,
 948                                               io_ptr, &fs);
 949                         if (!retval)
 950                                 break;
 951                 }
 952         } else
 953                 retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
 954                                       flags, 0, 0, io_ptr, &fs);
 955         if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
 956             !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
 957             ((retval == EXT2_ET_BAD_MAGIC) ||
 958              (retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
 959              ((retval == 0) && ext2fs_check_desc(fs)))) {
 960                 if (fs->flags & EXT2_FLAG_NOFREE_ON_ERROR) {
 961                         ext2fs_free(fs);
 962                         fs = NULL;
 963                 }
 964                 if (!fs || (fs->group_desc_count > 1)) {
 965                         printf(_("%s: %s trying backup blocks...\n"),
 966                                ctx->program_name,
 967                                retval ? _("Superblock invalid,") :
 968                                _("Group descriptors look bad..."));
 969                         get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
 970                         if (fs)
 971                                 ext2fs_close(fs);
 972                         orig_retval = retval;
 973                         goto restart;
 974                 }
 975         }
 976         if (((retval == EXT2_ET_UNSUPP_FEATURE) ||
 977              (retval == EXT2_ET_RO_UNSUPP_FEATURE)) &&
 978             fs && fs->super) {
 979                 sb = fs->super;
 980                 features[0] = (sb->s_feature_compat &
 981                                ~EXT2_LIB_FEATURE_COMPAT_SUPP);
 982                 features[1] = (sb->s_feature_incompat &
 983                                ~EXT2_LIB_FEATURE_INCOMPAT_SUPP);
 984                 features[2] = (sb->s_feature_ro_compat &
 985                                ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
 986                 if (features[0] || features[1] || features[2])
 987                         goto print_unsupp_features;
 988         }
 989         if (retval) {
 990                 if (orig_retval)
 991                         retval = orig_retval;
 992                 com_err(ctx->program_name, retval, _("while trying to open %s"),
 993                         ctx->filesystem_name);
 994                 if (retval == EXT2_ET_REV_TOO_HIGH) {
 995                         printf(_("The filesystem revision is apparently "
 996                                "too high for this version of e2fsck.\n"
 997                                "(Or the filesystem superblock "
 998                                "is corrupt)\n\n"));
 999                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1000                 } else if (retval == EXT2_ET_SHORT_READ)
1001                         printf(_("Could this be a zero-length partition?\n"));
1002                 else if ((retval == EPERM) || (retval == EACCES))
1003                         printf(_("You must have %s access to the "
1004                                "filesystem or be root\n"),
1005                                (ctx->options & E2F_OPT_READONLY) ?
1006                                "r/o" : "r/w");
1007                 else if (retval == ENXIO)
1008                         printf(_("Possibly non-existent or swap device?\n"));
1009                 else if (retval == EBUSY)
1010                         printf(_("Filesystem mounted or opened exclusively "
1011                                  "by another program?\n"));
1012 #ifdef EROFS
1013                 else if (retval == EROFS)
1014                         printf(_("Disk write-protected; use the -n option "
1015                                "to do a read-only\n"
1016                                "check of the device.\n"));
1017 #endif
1018                 else
1019                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
1020                 fatal_error(ctx, 0);
1021         }
1022         /*
1023          * We only update the master superblock because (a) paranoia;
1024          * we don't want to corrupt the backup superblocks, and (b) we
1025          * don't need to update the mount count and last checked
1026          * fields in the backup superblock (the kernel doesn't update
1027          * the backup superblocks anyway).  With newer versions of the
1028          * library this flag is set by ext2fs_open2(), but we set this
1029          * here just to be sure.  (No, we don't support e2fsck running
1030          * with some other libext2fs than the one that it was shipped
1031          * with, but just in case....)
1032          */
1033         fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
1034
1035         if (!(ctx->flags & E2F_FLAG_GOT_DEVSIZE)) {
1036                 __u32 blocksize = EXT2_BLOCK_SIZE(fs->super);
1037                 int need_restart = 0;
1038
1039                 pctx.errcode = ext2fs_get_device_size(ctx->filesystem_name,
1040                                                       blocksize,
1041                                                       &ctx->num_blocks);
1042                 /*
1043                  * The floppy driver refuses to allow anyone else to
1044                  * open the device if has been opened with O_EXCL;
1045                  * this is unlike other block device drivers in Linux.
1046                  * To handle this, we close the filesystem and then
1047                  * reopen the filesystem after we get the device size.
1048                  */
1049                 if (pctx.errcode == EBUSY) {
1050                         ext2fs_close(fs);
1051                         need_restart++;
1052                         pctx.errcode =
1053                                 ext2fs_get_device_size(ctx->filesystem_name,
1054                                                        blocksize,
1055                                                        &ctx->num_blocks);
1056                 }
1057                 if (pctx.errcode == EXT2_ET_UNIMPLEMENTED)
1058                         ctx->num_blocks = 0;
1059                 else if (pctx.errcode) {
1060                         fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
1061                         ctx->flags |= E2F_FLAG_ABORT;
1062                         fatal_error(ctx, 0);
1063                 }
1064                 ctx->flags |= E2F_FLAG_GOT_DEVSIZE;
1065                 if (need_restart)
1066                         goto restart;
1067         }
1068
1069         ctx->fs = fs;
1070         fs->priv_data = ctx;
1071         fs->now = ctx->now;
1072         sb = fs->super;
1073         if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
1074                 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
1075                         _("while trying to open %s"),
1076                         ctx->filesystem_name);
1077         get_newer:
1078                 fatal_error(ctx, _("Get a newer version of e2fsck!"));
1079         }
1080
1081         /*
1082          * Set the device name, which is used whenever we print error
1083          * or informational messages to the user.
1084          */
1085         if (ctx->device_name == 0 &&
1086             (sb->s_volume_name[0] != 0)) {
1087                 ctx->device_name = string_copy(ctx, sb->s_volume_name,
1088                                                sizeof(sb->s_volume_name));
1089         }
1090         if (ctx->device_name == 0)
1091                 ctx->device_name = string_copy(ctx, ctx->filesystem_name, 0);
1092         for (cp = ctx->device_name; *cp; cp++)
1093                 if (isspace(*cp) || *cp == ':')
1094                         *cp = '_';
1095
1096         /*
1097          * Make sure the ext3 superblock fields are consistent.
1098          */
1099         retval = e2fsck_check_ext3_journal(ctx);
1100         if (retval) {
1101                 com_err(ctx->program_name, retval,
1102                         _("while checking ext3 journal for %s"),
1103                         ctx->device_name);
1104                 fatal_error(ctx, 0);
1105         }
1106
1107         /*
1108          * Check to see if we need to do ext3-style recovery.  If so,
1109          * do it, and then restart the fsck.
1110          */
1111         if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
1112                 if (ctx->options & E2F_OPT_READONLY) {
1113                         printf(_("Warning: skipping journal recovery "
1114                                  "because doing a read-only filesystem "
1115                                  "check.\n"));
1116                         io_channel_flush(ctx->fs->io);
1117                 } else {
1118                         if (ctx->flags & E2F_FLAG_RESTARTED) {
1119                                 /*
1120                                  * Whoops, we attempted to run the
1121                                  * journal twice.  This should never
1122                                  * happen, unless the hardware or
1123                                  * device driver is being bogus.
1124                                  */
1125                                 com_err(ctx->program_name, 0,
1126                                         _("unable to set superblock flags on %s\n"), ctx->device_name);
1127                                 fatal_error(ctx, 0);
1128                         }
1129                         retval = e2fsck_run_ext3_journal(ctx);
1130                         if (retval) {
1131                                 com_err(ctx->program_name, retval,
1132                                 _("while recovering ext3 journal of %s"),
1133                                         ctx->device_name);
1134                                 fatal_error(ctx, 0);
1135                         }
1136                         ext2fs_close(ctx->fs);
1137                         ctx->fs = 0;
1138                         ctx->flags |= E2F_FLAG_RESTARTED;
1139                         goto restart;
1140                 }
1141         }
1142
1143         /*
1144          * Check for compatibility with the feature sets.  We need to
1145          * be more stringent than ext2fs_open().
1146          */
1147         features[0] = sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP;
1148         features[1] = sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP;
1149         features[2] = (sb->s_feature_ro_compat &
1150                        ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP);
1151 print_unsupp_features:
1152         if (features[0] || features[1] || features[2]) {
1153                 int     i, j;
1154                 __u32   *mask = features, m;
1155
1156                 fprintf(stderr, _("%s has unsupported feature(s):"),
1157                         ctx->filesystem_name);
1158
1159                 for (i=0; i <3; i++,mask++) {
1160                         for (j=0,m=1; j < 32; j++, m<<=1) {
1161                                 if (*mask & m)
1162                                         fprintf(stderr, " %s",
1163                                                 e2p_feature2string(i, m));
1164                         }
1165                 }
1166                 putc('\n', stderr);
1167                 goto get_newer;
1168         }
1169 #ifdef ENABLE_COMPRESSION
1170         if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
1171                 com_err(ctx->program_name, 0,
1172                         _("Warning: compression support is experimental.\n"));
1173 #endif
1174 #ifndef ENABLE_HTREE
1175         if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
1176                 com_err(ctx->program_name, 0,
1177                         _("E2fsck not compiled with HTREE support,\n\t"
1178                           "but filesystem %s has HTREE directories.\n"),
1179                         ctx->device_name);
1180                 goto get_newer;
1181         }
1182 #endif
1183
1184         /*
1185          * If the user specified a specific superblock, presumably the
1186          * master superblock has been trashed.  So we mark the
1187          * superblock as dirty, so it can be written out.
1188          */
1189         if (ctx->superblock &&
1190             !(ctx->options & E2F_OPT_READONLY))
1191                 ext2fs_mark_super_dirty(fs);
1192
1193         /*
1194          * Calculate the number of filesystem blocks per pagesize.  If
1195          * fs->blocksize > page_size, set the number of blocks per
1196          * pagesize to 1 to avoid division by zero errors.
1197          */
1198 #ifdef _SC_PAGESIZE
1199         sysval = sysconf(_SC_PAGESIZE);
1200         if (sysval > 0)
1201                 sys_page_size = sysval;
1202 #endif /* _SC_PAGESIZE */
1203         ctx->blocks_per_page = sys_page_size / fs->blocksize;
1204         if (ctx->blocks_per_page == 0)
1205                 ctx->blocks_per_page = 1;
1206
1207         ehandler_init(fs->io);
1208
1209         if (ctx->superblock)
1210                 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
1211         ext2fs_mark_valid(fs);
1212         check_super_block(ctx);
1213         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1214                 fatal_error(ctx, 0);
1215         check_if_skip(ctx);
1216         if (bad_blocks_file)
1217                 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
1218         else if (cflag)
1219                 read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
1220         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1221                 fatal_error(ctx, 0);
1222
1223         /*
1224          * Mark the system as valid, 'til proven otherwise
1225          */
1226         ext2fs_mark_valid(fs);
1227
1228         retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
1229         if (retval) {
1230                 com_err(ctx->program_name, retval,
1231                         _("while reading bad blocks inode"));
1232                 preenhalt(ctx);
1233                 printf(_("This doesn't bode well,"
1234                          " but we'll try to go on...\n"));
1235         }
1236
1237         /*
1238          * Save the journal size in megabytes.
1239          * Try and use the journal size from the backup else let e2fsck
1240          * find the default journal size.
1241          */
1242         if (sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS)
1243                 journal_size = sb->s_jnl_blocks[16] >> 20;
1244         else
1245                 journal_size = -1;
1246
1247         run_result = e2fsck_run(ctx);
1248         e2fsck_clear_progbar(ctx);
1249
1250         if (ctx->flags & E2F_FLAG_JOURNAL_INODE) {
1251                 if (fix_problem(ctx, PR_6_RECREATE_JOURNAL, &pctx)) {
1252                         if (journal_size < 1024)
1253                                 journal_size = ext2fs_default_journal_size(fs->super->s_blocks_count);
1254                         if (journal_size < 0) {
1255                                 fs->super->s_feature_compat &=
1256                                         ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1257                                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1258                                 com_err(ctx->program_name, 0,
1259                                         _("Couldn't determine journal size"));
1260                                 goto no_journal;
1261                         }
1262                         printf(_("Creating journal (%d blocks): "),
1263                                journal_size);
1264                         fflush(stdout);
1265                         retval = ext2fs_add_journal_inode(fs,
1266                                                           journal_size, 0);
1267                         if (retval) {
1268                                 com_err("Error ", retval,
1269                                         _("\n\twhile trying to create journal"));
1270                                 goto no_journal;
1271                         }
1272                         printf(_(" Done.\n"));
1273                         printf(_("\n*** journal has been re-created - "
1274                                        "filesystem is now ext3 again ***\n"));
1275                 }
1276         }
1277 no_journal:
1278
1279         if (run_result == E2F_FLAG_RESTART) {
1280                 printf(_("Restarting e2fsck from the beginning...\n"));
1281                 retval = e2fsck_reset_context(ctx);
1282                 if (retval) {
1283                         com_err(ctx->program_name, retval,
1284                                 _("while resetting context"));
1285                         fatal_error(ctx, 0);
1286                 }
1287                 ext2fs_close(fs);
1288                 goto restart;
1289         }
1290         if (run_result & E2F_FLAG_CANCEL) {
1291                 printf(_("%s: e2fsck canceled.\n"), ctx->device_name ?
1292                        ctx->device_name : ctx->filesystem_name);
1293                 exit_value |= FSCK_CANCELED;
1294         }
1295         if (run_result & E2F_FLAG_ABORT)
1296                 fatal_error(ctx, _("aborted"));
1297         if (check_backup_super_block(ctx)) {
1298                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1299                 ext2fs_mark_super_dirty(fs);
1300         }
1301
1302 #ifdef MTRACE
1303         mtrace_print("Cleanup");
1304 #endif
1305         if (ext2fs_test_changed(fs)) {
1306                 exit_value |= FSCK_NONDESTRUCT;
1307                 if (!(ctx->options & E2F_OPT_PREEN))
1308                     printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
1309                                ctx->device_name);
1310                 if (ctx->mount_flags & EXT2_MF_ISROOT) {
1311                         printf(_("%s: ***** REBOOT LINUX *****\n"),
1312                                ctx->device_name);
1313                         exit_value |= FSCK_REBOOT;
1314                 }
1315         }
1316         if (!ext2fs_test_valid(fs) ||
1317             ((exit_value & FSCK_CANCELED) &&
1318              (sb->s_state & EXT2_ERROR_FS))) {
1319                 printf(_("\n%s: ********** WARNING: Filesystem still has "
1320                          "errors **********\n\n"), ctx->device_name);
1321                 exit_value |= FSCK_UNCORRECTED;
1322                 exit_value &= ~FSCK_NONDESTRUCT;
1323         }
1324         if (exit_value & FSCK_CANCELED) {
1325                 int     allow_cancellation;
1326
1327                 profile_get_boolean(ctx->profile, "options",
1328                                     "allow_cancellation", 0, 0,
1329                                     &allow_cancellation);
1330                 exit_value &= ~FSCK_NONDESTRUCT;
1331                 if (allow_cancellation && ext2fs_test_valid(fs) &&
1332                     (sb->s_state & EXT2_VALID_FS) &&
1333                     !(sb->s_state & EXT2_ERROR_FS))
1334                         exit_value = 0;
1335         } else {
1336                 show_stats(ctx);
1337                 if (!(ctx->options & E2F_OPT_READONLY)) {
1338                         if (ext2fs_test_valid(fs)) {
1339                                 if (!(sb->s_state & EXT2_VALID_FS))
1340                                         exit_value |= FSCK_NONDESTRUCT;
1341                                 sb->s_state = EXT2_VALID_FS;
1342                         } else
1343                                 sb->s_state &= ~EXT2_VALID_FS;
1344                         sb->s_mnt_count = 0;
1345                         sb->s_lastcheck = ctx->now;
1346                         ext2fs_mark_super_dirty(fs);
1347                 }
1348         }
1349
1350         if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM &&
1351             !(ctx->options & E2F_OPT_READONLY)) {
1352                 retval = ext2fs_set_gdt_csum(ctx->fs);
1353                 if (retval) {
1354                         com_err(ctx->program_name, retval,
1355                                 _("while setting block group checksum info"));
1356                         fatal_error(ctx, 0);
1357                 }
1358         }
1359
1360         e2fsck_write_bitmaps(ctx);
1361 #ifdef RESOURCE_TRACK
1362         io_channel_flush(ctx->fs->io);
1363         if (ctx->options & E2F_OPT_TIME)
1364                 print_resource_track(NULL, &ctx->global_rtrack, ctx->fs->io);
1365 #endif
1366         ext2fs_close(fs);
1367         ctx->fs = NULL;
1368         free(ctx->journal_name);
1369
1370         e2fsck_free_context(ctx);
1371         remove_error_table(&et_ext2_error_table);
1372         remove_error_table(&et_prof_error_table);
1373         return exit_value;
1374 }