misc/dumpe2fs.c

   1 /*
   2  * dumpe2fs.c           - List the control structures of a second
   3  *                        extended filesystem
   4  *
   5  * Copyright (C) 1992, 1993, 1994  Remy Card <card@masi.ibp.fr>
   6  *                                 Laboratoire MASI, Institut Blaise Pascal
   7  *                                 Universite Pierre et Marie Curie (Paris VI)
   8  *
   9  * Copyright 1995, 1996, 1997 by Theodore Ts'o.
  10  *
  11  * %Begin-Header%
  12  * This file may be redistributed under the terms of the GNU Public
  13  * License.
  14  * %End-Header%
  15  */
  16
  17 /*
  18  * History:
  19  * 94/01/09     - Creation
  20  * 94/02/27     - Ported to use the ext2fs library
  21  */
  22
  23 #include "config.h"
  24 #ifdef HAVE_GETOPT_H
  25 #include <getopt.h>
  26 #else
  27 extern char *optarg;
  28 extern int optind;
  29 #endif
  30 #include <fcntl.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <unistd.h>
  35
  36 #include "ext2fs/ext2_fs.h"
  37
  38 #include "ext2fs/ext2fs.h"
  39 #include "e2p/e2p.h"
  40 #include "jfs_user.h"
  41 #include <uuid/uuid.h>
  42
  43 #include "../version.h"
  44 #include "nls-enable.h"
  45
  46 #define in_use(m, x)    (ext2fs_test_bit ((x), (m)))
  47
  48 const char * program_name = "dumpe2fs";
  49 char * device_name = NULL;
  50 int hex_format = 0;
  51 int blocks64 = 0;
  52
  53 static void usage(void)
  54 {
  55         fprintf (stderr, _("Usage: %s [-bfhixV] [-o superblock=<num>] "
  56                  "[-o blocksize=<num>] device\n"), program_name);
  57         exit (1);
  58 }
  59
  60 static void print_number(unsigned long long num)
  61 {
  62         if (hex_format) {
  63                 if (blocks64)
  64                         printf("0x%08llx", num);
  65                 else
  66                         printf("0x%04llx", num);
  67         } else
  68                 printf("%llu", num);
  69 }
  70
  71 static void print_range(unsigned long long a, unsigned long long b)
  72 {
  73         if (hex_format) {
  74                 if (blocks64)
  75                         printf("0x%08llx-0x%08llx", a, b);
  76                 else
  77                         printf("0x%04llx-0x%04llx", a, b);
  78         } else
  79                 printf("%llu-%llu", a, b);
  80 }
  81
  82 static void print_free(unsigned long group, char * bitmap,
  83                        unsigned long num, unsigned long offset, int ratio)
  84 {
  85         int p = 0;
  86         unsigned long i;
  87         unsigned long j;
  88
  89         offset /= ratio;
  90         offset += group * num;
  91         for (i = 0; i < num; i++)
  92                 if (!in_use (bitmap, i))
  93                 {
  94                         if (p)
  95                                 printf (", ");
  96                         print_number((i + offset) * ratio);
  97                         for (j = i; j < num && !in_use (bitmap, j); j++)
  98                                 ;
  99                         if (--j != i) {
 100                                 fputc('-', stdout);
 101                                 print_number((j + offset) * ratio);
 102                                 i = j;
 103                         }
 104                         p = 1;
 105                 }
 106 }
 107
 108 static void print_bg_opt(int bg_flags, int mask,
 109                           const char *str, int *first)
 110 {
 111         if (bg_flags & mask) {
 112                 if (*first) {
 113                         fputs(" [", stdout);
 114                         *first = 0;
 115                 } else
 116                         fputs(", ", stdout);
 117                 fputs(str, stdout);
 118         }
 119 }
 120 static void print_bg_opts(ext2_filsys fs, dgrp_t i)
 121 {
 122         int first = 1, bg_flags = 0;
 123
 124         if (ext2fs_has_group_desc_csum(fs))
 125                 bg_flags = ext2fs_bg_flags(fs, i);
 126
 127         print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT",
 128                      &first);
 129         print_bg_opt(bg_flags, EXT2_BG_BLOCK_UNINIT, "BLOCK_UNINIT",
 130                      &first);
 131         print_bg_opt(bg_flags, EXT2_BG_INODE_ZEROED, "ITABLE_ZEROED",
 132                      &first);
 133         if (!first)
 134                 fputc(']', stdout);
 135         fputc('\n', stdout);
 136 }
 137
 138 static void print_bg_rel_offset(ext2_filsys fs, blk64_t block, int itable,
 139                                 blk64_t first_block, blk64_t last_block)
 140 {
 141         if ((block >= first_block) && (block <= last_block)) {
 142                 if (itable && block == first_block)
 143                         return;
 144                 printf(" (+%u)", (unsigned)(block - first_block));
 145         } else if (fs->super->s_feature_incompat &
 146                    EXT4_FEATURE_INCOMPAT_FLEX_BG) {
 147                 dgrp_t flex_grp = ext2fs_group_of_blk2(fs, block);
 148                 printf(" (bg #%u + %u)", flex_grp,
 149                        (unsigned)(block-ext2fs_group_first_block2(fs,flex_grp)));
 150         }
 151 }
 152
 153 static void list_desc (ext2_filsys fs)
 154 {
 155         unsigned long i;
 156         blk64_t first_block, last_block;
 157         blk64_t super_blk, old_desc_blk, new_desc_blk;
 158         char *block_bitmap=NULL, *inode_bitmap=NULL;
 159         const char *units = _("blocks");
 160         int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
 161         int             block_nbytes, inode_nbytes;
 162         int has_super;
 163         blk64_t         blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
 164         ext2_ino_t      ino_itr = 1;
 165         errcode_t       retval;
 166
 167         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 168                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 169                 units = _("clusters");
 170
 171         block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
 172         inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
 173
 174         if (fs->block_map)
 175                 block_bitmap = malloc(block_nbytes);
 176         if (fs->inode_map)
 177                 inode_bitmap = malloc(inode_nbytes);
 178
 179         inode_blocks_per_group = ((fs->super->s_inodes_per_group *
 180                                    EXT2_INODE_SIZE(fs->super)) +
 181                                   EXT2_BLOCK_SIZE(fs->super) - 1) /
 182                                  EXT2_BLOCK_SIZE(fs->super);
 183         reserved_gdt = fs->super->s_reserved_gdt_blocks;
 184         fputc('\n', stdout);
 185         first_block = fs->super->s_first_data_block;
 186         if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
 187                 old_desc_blocks = fs->super->s_first_meta_bg;
 188         else
 189                 old_desc_blocks = fs->desc_blocks;
 190         for (i = 0; i < fs->group_desc_count; i++) {
 191                 first_block = ext2fs_group_first_block2(fs, i);
 192                 last_block = ext2fs_group_last_block2(fs, i);
 193
 194                 ext2fs_super_and_bgd_loc2(fs, i, &super_blk,
 195                                           &old_desc_blk, &new_desc_blk, 0);
 196
 197                 printf (_("Group %lu: (Blocks "), i);
 198                 print_range(first_block, last_block);
 199                 fputs(")", stdout);
 200                 print_bg_opts(fs, i);
 201                 if (ext2fs_has_group_desc_csum(fs)) {
 202                         unsigned csum = ext2fs_bg_checksum(fs, i);
 203                         unsigned exp_csum = ext2fs_group_desc_csum(fs, i);
 204
 205                         printf(_("  Checksum 0x%04x"), csum);
 206                         if (csum != exp_csum)
 207                                 printf(_(" (EXPECTED 0x%04x)"), exp_csum);
 208                         printf(_(", unused inodes %u\n"),
 209                                ext2fs_bg_itable_unused(fs, i));
 210                 }
 211                 has_super = ((i==0) || super_blk);
 212                 if (has_super) {
 213                         printf (_("  %s superblock at "),
 214                                 i == 0 ? _("Primary") : _("Backup"));
 215                         print_number(super_blk);
 216                 }
 217                 if (old_desc_blk) {
 218                         printf("%s", _(", Group descriptors at "));
 219                         print_range(old_desc_blk,
 220                                     old_desc_blk + old_desc_blocks - 1);
 221                         if (reserved_gdt) {
 222                                 printf("%s", _("\n  Reserved GDT blocks at "));
 223                                 print_range(old_desc_blk + old_desc_blocks,
 224                                             old_desc_blk + old_desc_blocks +
 225                                             reserved_gdt - 1);
 226                         }
 227                 } else if (new_desc_blk) {
 228                         fputc(has_super ? ',' : ' ', stdout);
 229                         printf("%s", _(" Group descriptor at "));
 230                         print_number(new_desc_blk);
 231                         has_super++;
 232                 }
 233                 if (has_super)
 234                         fputc('\n', stdout);
 235                 fputs(_("  Block bitmap at "), stdout);
 236                 print_number(ext2fs_block_bitmap_loc(fs, i));
 237                 print_bg_rel_offset(fs, ext2fs_block_bitmap_loc(fs, i), 0,
 238                                     first_block, last_block);
 239                 if (fs->super->s_feature_ro_compat &
 240                     EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
 241                         printf(_(", csum 0x%08x"),
 242                                ext2fs_block_bitmap_checksum(fs, i));
 243                 fputs(_(", Inode bitmap at "), stdout);
 244                 print_number(ext2fs_inode_bitmap_loc(fs, i));
 245                 print_bg_rel_offset(fs, ext2fs_inode_bitmap_loc(fs, i), 0,
 246                                     first_block, last_block);
 247                 if (fs->super->s_feature_ro_compat &
 248                     EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
 249                         printf(_(", csum 0x%08x"),
 250                                ext2fs_inode_bitmap_checksum(fs, i));
 251                 fputs(_("\n  Inode table at "), stdout);
 252                 print_range(ext2fs_inode_table_loc(fs, i),
 253                             ext2fs_inode_table_loc(fs, i) +
 254                             inode_blocks_per_group - 1);
 255                 print_bg_rel_offset(fs, ext2fs_inode_table_loc(fs, i), 1,
 256                                     first_block, last_block);
 257                 printf (_("\n  %u free %s, %u free inodes, "
 258                           "%u directories%s"),
 259                         ext2fs_bg_free_blocks_count(fs, i), units,
 260                         ext2fs_bg_free_inodes_count(fs, i),
 261                         ext2fs_bg_used_dirs_count(fs, i),
 262                         ext2fs_bg_itable_unused(fs, i) ? "" : "\n");
 263                 if (ext2fs_bg_itable_unused(fs, i))
 264                         printf (_(", %u unused inodes\n"),
 265                                 ext2fs_bg_itable_unused(fs, i));
 266                 if (block_bitmap) {
 267                         fputs(_("  Free blocks: "), stdout);
 268                         retval = ext2fs_get_block_bitmap_range2(fs->block_map,
 269                                  blk_itr, block_nbytes << 3, block_bitmap);
 270                         if (retval)
 271                                 com_err("list_desc", retval,
 272                                         "while reading block bitmap");
 273                         else
 274                                 print_free(i, block_bitmap,
 275                                            fs->super->s_clusters_per_group,
 276                                            fs->super->s_first_data_block,
 277                                            EXT2FS_CLUSTER_RATIO(fs));
 278                         fputc('\n', stdout);
 279                         blk_itr += fs->super->s_clusters_per_group;
 280                 }
 281                 if (inode_bitmap) {
 282                         fputs(_("  Free inodes: "), stdout);
 283                         retval = ext2fs_get_inode_bitmap_range2(fs->inode_map,
 284                                  ino_itr, inode_nbytes << 3, inode_bitmap);
 285                         if (retval)
 286                                 com_err("list_desc", retval,
 287                                         "while reading inode bitmap");
 288                         else
 289                                 print_free(i, inode_bitmap,
 290                                            fs->super->s_inodes_per_group,
 291                                            1, 1);
 292                         fputc('\n', stdout);
 293                         ino_itr += fs->super->s_inodes_per_group;
 294                 }
 295         }
 296         if (block_bitmap)
 297                 free(block_bitmap);
 298         if (inode_bitmap)
 299                 free(inode_bitmap);
 300 }
 301
 302 static void list_bad_blocks(ext2_filsys fs, int dump)
 303 {
 304         badblocks_list          bb_list = 0;
 305         badblocks_iterate       bb_iter;
 306         blk_t                   blk;
 307         errcode_t               retval;
 308         const char              *header, *fmt;
 309
 310         retval = ext2fs_read_bb_inode(fs, &bb_list);
 311         if (retval) {
 312                 com_err("ext2fs_read_bb_inode", retval, 0);
 313                 return;
 314         }
 315         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 316         if (retval) {
 317                 com_err("ext2fs_badblocks_list_iterate_begin", retval,
 318                         "%s", _("while printing bad block list"));
 319                 return;
 320         }
 321         if (dump) {
 322                 header = fmt = "%u\n";
 323         } else {
 324                 header =  _("Bad blocks: %u");
 325                 fmt = ", %u";
 326         }
 327         while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) {
 328                 printf(header ? header : fmt, blk);
 329                 header = 0;
 330         }
 331         ext2fs_badblocks_list_iterate_end(bb_iter);
 332         if (!dump)
 333                 fputc('\n', stdout);
 334         ext2fs_badblocks_list_free(bb_list);
 335 }
 336
 337 static const char *journal_checksum_type_str(__u8 type)
 338 {
 339         switch (type) {
 340         case JBD2_CRC32C_CHKSUM:
 341                 return "crc32c";
 342         default:
 343                 return "unknown";
 344         }
 345 }
 346
 347 static void print_inline_journal_information(ext2_filsys fs)
 348 {
 349         journal_superblock_t    *jsb;
 350         struct ext2_inode       inode;
 351         ext2_file_t             journal_file;
 352         errcode_t               retval;
 353         ino_t                   ino = fs->super->s_journal_inum;
 354         char                    buf[1024];
 355         __u32                   *mask_ptr, mask, m;
 356         int                     i, j, size, printed = 0;
 357
 358         retval = ext2fs_read_inode(fs, ino,  &inode);
 359         if (retval) {
 360                 com_err(program_name, retval, "%s",
 361                         _("while reading journal inode"));
 362                 exit(1);
 363         }
 364         retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file);
 365         if (retval) {
 366                 com_err(program_name, retval, "%s",
 367                         _("while opening journal inode"));
 368                 exit(1);
 369         }
 370         retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0);
 371         if (retval) {
 372                 com_err(program_name, retval, "%s",
 373                         _("while reading journal super block"));
 374                 exit(1);
 375         }
 376         ext2fs_file_close(journal_file);
 377         jsb = (journal_superblock_t *) buf;
 378         if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) {
 379                 fprintf(stderr, "%s",
 380                         _("Journal superblock magic number invalid!\n"));
 381                 exit(1);
 382         }
 383         printf("%s", _("Journal features:        "));
 384         for (i=0, mask_ptr=&jsb->s_feature_compat; i <3; i++,mask_ptr++) {
 385                 mask = be32_to_cpu(*mask_ptr);
 386                 for (j=0,m=1; j < 32; j++, m<<=1) {
 387                         if (mask & m) {
 388                                 printf(" %s", e2p_jrnl_feature2string(i, m));
 389                                 printed++;
 390                         }
 391                 }
 392         }
 393         if (printed == 0)
 394                 printf(" (none)");
 395         printf("\n");
 396         fputs(_("Journal size:             "), stdout);
 397         if ((fs->super->s_feature_ro_compat &
 398              EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
 399             (inode.i_flags & EXT4_HUGE_FILE_FL))
 400                 size = inode.i_blocks / (fs->blocksize / 1024);
 401         else
 402                 size = inode.i_blocks >> 1;
 403         if (size < 8192)
 404                 printf("%uk\n", size);
 405         else
 406                 printf("%uM\n", size >> 10);
 407         printf(_("Journal length:           %u\n"
 408                  "Journal sequence:         0x%08x\n"
 409                  "Journal start:            %u\n"),
 410                (unsigned int)ntohl(jsb->s_maxlen),
 411                (unsigned int)ntohl(jsb->s_sequence),
 412                (unsigned int)ntohl(jsb->s_start));
 413         if (jsb->s_feature_compat &
 414             ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM))
 415                 printf(_("Journal checksum type:    crc32\n"));
 416         if (jsb->s_feature_incompat &
 417             ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))
 418                 printf(_("Journal checksum type:    %s\n"
 419                          "Journal checksum:         0x%08x\n"),
 420                        journal_checksum_type_str(jsb->s_checksum_type),
 421                        ext2fs_be32_to_cpu(jsb->s_checksum));
 422         if (jsb->s_errno != 0)
 423                 printf(_("Journal errno:            %d\n"),
 424                        (int) ntohl(jsb->s_errno));
 425 }
 426
 427 static void print_journal_information(ext2_filsys fs)
 428 {
 429         errcode_t       retval;
 430         char            buf[1024];
 431         char            str[80];
 432         unsigned int    i;
 433         journal_superblock_t    *jsb;
 434
 435         /* Get the journal superblock */
 436         if ((retval = io_channel_read_blk64(fs->io,
 437                                             fs->super->s_first_data_block + 1,
 438                                             -1024, buf))) {
 439                 com_err(program_name, retval, "%s",
 440                         _("while reading journal superblock"));
 441                 exit(1);
 442         }
 443         jsb = (journal_superblock_t *) buf;
 444         if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) ||
 445             (jsb->s_header.h_blocktype !=
 446              (unsigned) ntohl(JFS_SUPERBLOCK_V2))) {
 447                 com_err(program_name, 0, "%s",
 448                         _("Couldn't find journal superblock magic numbers"));
 449                 exit(1);
 450         }
 451
 452         if (jsb->s_feature_compat &
 453             ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM))
 454                 printf(_("Journal checksum type:    crc32\n"));
 455         if (jsb->s_feature_incompat &
 456             ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))
 457                 printf(_("Journal checksum type:    %s\n"
 458                          "Journal checksum:         0x%08x\n"),
 459                        journal_checksum_type_str(jsb->s_checksum_type),
 460                        ext2fs_be32_to_cpu(jsb->s_checksum));
 461
 462         printf(_("\nJournal block size:       %u\n"
 463                  "Journal length:           %u\n"
 464                  "Journal first block:      %u\n"
 465                  "Journal sequence:         0x%08x\n"
 466                  "Journal start:            %u\n"
 467                  "Journal number of users:  %u\n"),
 468                (unsigned int)ntohl(jsb->s_blocksize),  (unsigned int)ntohl(jsb->s_maxlen),
 469                (unsigned int)ntohl(jsb->s_first), (unsigned int)ntohl(jsb->s_sequence),
 470                (unsigned int)ntohl(jsb->s_start), (unsigned int)ntohl(jsb->s_nr_users));
 471
 472         for (i=0; i < ntohl(jsb->s_nr_users); i++) {
 473                 uuid_unparse(&jsb->s_users[i*16], str);
 474                 printf(i ? "                          %s\n"
 475                        : _("Journal users:            %s\n"),
 476                        str);
 477         }
 478 }
 479
 480 static void parse_extended_opts(const char *opts, blk64_t *superblock,
 481                                 int *blocksize)
 482 {
 483         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 484         int     len;
 485         int     do_usage = 0;
 486
 487         len = strlen(opts);
 488         buf = malloc(len+1);
 489         if (!buf) {
 490                 fprintf(stderr, "%s",
 491                         _("Couldn't allocate memory to parse options!\n"));
 492                 exit(1);
 493         }
 494         strcpy(buf, opts);
 495         for (token = buf; token && *token; token = next) {
 496                 p = strchr(token, ',');
 497                 next = 0;
 498                 if (p) {
 499                         *p = 0;
 500                         next = p+1;
 501                 }
 502                 arg = strchr(token, '=');
 503                 if (arg) {
 504                         *arg = 0;
 505                         arg++;
 506                 }
 507                 if (strcmp(token, "superblock") == 0 ||
 508                     strcmp(token, "sb") == 0) {
 509                         if (!arg) {
 510                                 do_usage++;
 511                                 badopt = token;
 512                                 continue;
 513                         }
 514                         *superblock = strtoul(arg, &p, 0);
 515                         if (*p) {
 516                                 fprintf(stderr,
 517                                         _("Invalid superblock parameter: %s\n"),
 518                                         arg);
 519                                 do_usage++;
 520                                 continue;
 521                         }
 522                 } else if (strcmp(token, "blocksize") == 0 ||
 523                            strcmp(token, "bs") == 0) {
 524                         if (!arg) {
 525                                 do_usage++;
 526                                 badopt = token;
 527                                 continue;
 528                         }
 529                         *blocksize = strtoul(arg, &p, 0);
 530                         if (*p) {
 531                                 fprintf(stderr,
 532                                         _("Invalid blocksize parameter: %s\n"),
 533                                         arg);
 534                                 do_usage++;
 535                                 continue;
 536                         }
 537                 } else {
 538                         do_usage++;
 539                         badopt = token;
 540                 }
 541         }
 542         if (do_usage) {
 543                 fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n"
 544                         "Extended options are separated by commas, "
 545                         "and may take an argument which\n"
 546                         "\tis set off by an equals ('=') sign.\n\n"
 547                         "Valid extended options are:\n"
 548                         "\tsuperblock=<superblock number>\n"
 549                         "\tblocksize=<blocksize>\n"),
 550                         badopt ? badopt : "");
 551                 free(buf);
 552                 exit(1);
 553         }
 554         free(buf);
 555 }
 556
 557 int main (int argc, char ** argv)
 558 {
 559         errcode_t       retval;
 560         ext2_filsys     fs;
 561         int             print_badblocks = 0;
 562         blk64_t         use_superblock = 0;
 563         int             use_blocksize = 0;
 564         int             image_dump = 0;
 565         int             force = 0;
 566         int             flags;
 567         int             header_only = 0;
 568         int             c;
 569
 570 #ifdef ENABLE_NLS
 571         setlocale(LC_MESSAGES, "");
 572         setlocale(LC_CTYPE, "");
 573         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 574         textdomain(NLS_CAT_NAME);
 575         set_com_err_gettext(gettext);
 576 #endif
 577         add_error_table(&et_ext2_error_table);
 578         fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
 579                  E2FSPROGS_DATE);
 580         if (argc && *argv)
 581                 program_name = *argv;
 582
 583         while ((c = getopt (argc, argv, "bfhixVo:")) != EOF) {
 584                 switch (c) {
 585                 case 'b':
 586                         print_badblocks++;
 587                         break;
 588                 case 'f':
 589                         force++;
 590                         break;
 591                 case 'h':
 592                         header_only++;
 593                         break;
 594                 case 'i':
 595                         image_dump++;
 596                         break;
 597                 case 'o':
 598                         parse_extended_opts(optarg, &use_superblock,
 599                                             &use_blocksize);
 600                         break;
 601                 case 'V':
 602                         /* Print version number and exit */
 603                         fprintf(stderr, _("\tUsing %s\n"),
 604                                 error_message(EXT2_ET_BASE));
 605                         exit(0);
 606                 case 'x':
 607                         hex_format++;
 608                         break;
 609                 default:
 610                         usage();
 611                 }
 612         }
 613         if (optind > argc - 1)
 614                 usage();
 615         device_name = argv[optind++];
 616         flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 617         if (force)
 618                 flags |= EXT2_FLAG_FORCE;
 619         if (image_dump)
 620                 flags |= EXT2_FLAG_IMAGE_FILE;
 621
 622         if (use_superblock && !use_blocksize) {
 623                 for (use_blocksize = EXT2_MIN_BLOCK_SIZE;
 624                      use_blocksize <= EXT2_MAX_BLOCK_SIZE;
 625                      use_blocksize *= 2) {
 626                         retval = ext2fs_open (device_name, flags,
 627                                               use_superblock,
 628                                               use_blocksize, unix_io_manager,
 629                                               &fs);
 630                         if (!retval)
 631                                 break;
 632                 }
 633         } else
 634                 retval = ext2fs_open (device_name, flags, use_superblock,
 635                                       use_blocksize, unix_io_manager, &fs);
 636         if (retval) {
 637                 com_err (program_name, retval, _("while trying to open %s"),
 638                          device_name);
 639                 printf("%s", _("Couldn't find valid filesystem superblock.\n"));
 640                 exit (1);
 641         }
 642         fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 643         if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
 644                 blocks64 = 1;
 645         if (print_badblocks) {
 646                 list_bad_blocks(fs, 1);
 647         } else {
 648                 list_super (fs->super);
 649                 if (fs->super->s_feature_incompat &
 650                       EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
 651                         print_journal_information(fs);
 652                         ext2fs_close(fs);
 653                         exit(0);
 654                 }
 655                 if ((fs->super->s_feature_compat &
 656                      EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
 657                     (fs->super->s_journal_inum != 0))
 658                         print_inline_journal_information(fs);
 659                 list_bad_blocks(fs, 0);
 660                 if (header_only) {
 661                         ext2fs_close (fs);
 662                         exit (0);
 663                 }
 664                 retval = ext2fs_read_bitmaps (fs);
 665                 list_desc (fs);
 666                 if (retval) {
 667                         printf(_("\n%s: %s: error reading bitmaps: %s\n"),
 668                                program_name, device_name,
 669                                error_message(retval));
 670                 }
 671         }
 672         ext2fs_close (fs);
 673         remove_error_table(&et_ext2_error_table);
 674         exit (0);
 675 }