debugfs/debugfs.c

   1 /*
   2  * debugfs.c --- a program which allows you to attach an ext2fs
   3  * filesystem and play with it.
   4  *
   5  * Copyright (C) 1993 Theodore Ts'o.  This file may be redistributed
   6  * under the terms of the GNU Public License.
   7  *
   8  * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
   9  */
  10
  11 #include "config.h"
  12 #include <stdio.h>
  13 #include <unistd.h>
  14 #include <stdlib.h>
  15 #include <ctype.h>
  16 #include <string.h>
  17 #include <time.h>
  18 #include <libgen.h>
  19 #ifdef HAVE_GETOPT_H
  20 #include <getopt.h>
  21 #else
  22 extern int optind;
  23 extern char *optarg;
  24 #endif
  25 #ifdef HAVE_ERRNO_H
  26 #include <errno.h>
  27 #endif
  28 #include <fcntl.h>
  29 #ifdef HAVE_SYS_SYSMACROS_H
  30 #include <sys/sysmacros.h>
  31 #endif
  32
  33 #include "debugfs.h"
  34 #include "uuid/uuid.h"
  35 #include "e2p/e2p.h"
  36
  37 #include <ext2fs/ext2_ext_attr.h>
  38
  39 #include "../version.h"
  40 #include "jfs_user.h"
  41 #include "support/plausible.h"
  42
  43 #ifndef BUFSIZ
  44 #define BUFSIZ 8192
  45 #endif
  46
  47 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jbd-debug */
  48 int journal_enable_debug = -1;
  49 #endif
  50
  51 /*
  52  * There must be only one definition if we're hooking in extra commands or
  53  * chaging default prompt. Use -DSKIP_GLOBDEF for that.
  54  */
  55 #ifndef SKIP_GLOBDEFS
  56 ss_request_table *extra_cmds;
  57 const char *debug_prog_name;
  58 #endif
  59 int ss_sci_idx;
  60
  61 ext2_filsys     current_fs;
  62 quota_ctx_t     current_qctx;
  63 ext2_ino_t      root, cwd;
  64 int             no_copy_xattrs;
  65
  66 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
  67                              io_manager *io_ptr)
  68 {
  69         errcode_t retval = ENOMEM;
  70         const char      *tdb_dir = NULL;
  71         char            *tdb_file = NULL;
  72         char            *dev_name, *tmp_name;
  73
  74         /* (re)open a specific undo file */
  75         if (undo_file && undo_file[0] != 0) {
  76                 retval = set_undo_io_backing_manager(*io_ptr);
  77                 if (retval)
  78                         goto err;
  79                 *io_ptr = undo_io_manager;
  80                 retval = set_undo_io_backup_file(undo_file);
  81                 if (retval)
  82                         goto err;
  83                 printf("Overwriting existing filesystem; this can be undone "
  84                         "using the command:\n"
  85                         "    e2undo %s %s\n\n",
  86                         undo_file, device_name);
  87                 return retval;
  88         }
  89
  90         /*
  91          * Configuration via a conf file would be
  92          * nice
  93          */
  94         tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
  95         if (!tdb_dir)
  96                 tdb_dir = "/var/lib/e2fsprogs";
  97
  98         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
  99             access(tdb_dir, W_OK))
 100                 return 0;
 101
 102         tmp_name = strdup(device_name);
 103         if (!tmp_name)
 104                 goto errout;
 105         dev_name = basename(tmp_name);
 106         tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
 107         if (!tdb_file) {
 108                 free(tmp_name);
 109                 goto errout;
 110         }
 111         sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
 112         free(tmp_name);
 113
 114         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
 115                 retval = errno;
 116                 com_err("debugfs", retval,
 117                         "while trying to delete %s", tdb_file);
 118                 goto errout;
 119         }
 120
 121         retval = set_undo_io_backing_manager(*io_ptr);
 122         if (retval)
 123                 goto errout;
 124         *io_ptr = undo_io_manager;
 125         retval = set_undo_io_backup_file(tdb_file);
 126         if (retval)
 127                 goto errout;
 128         printf("Overwriting existing filesystem; this can be undone "
 129                 "using the command:\n"
 130                 "    e2undo %s %s\n\n", tdb_file, device_name);
 131
 132         free(tdb_file);
 133         return 0;
 134 errout:
 135         free(tdb_file);
 136 err:
 137         com_err("debugfs", retval, "while trying to setup undo file\n");
 138         return retval;
 139 }
 140
 141 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
 142                             blk64_t blocksize, int catastrophic,
 143                             char *data_filename, char *undo_file)
 144 {
 145         int     retval;
 146         io_channel data_io = 0;
 147         io_manager io_ptr = unix_io_manager;
 148
 149         if (superblock != 0 && blocksize == 0) {
 150                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
 151                 current_fs = NULL;
 152                 return;
 153         }
 154
 155         if (data_filename) {
 156                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
 157                         com_err(device, 0,
 158                                 "The -d option is only valid when reading an e2image file");
 159                         current_fs = NULL;
 160                         return;
 161                 }
 162                 retval = unix_io_manager->open(data_filename, 0, &data_io);
 163                 if (retval) {
 164                         com_err(data_filename, 0, "while opening data source");
 165                         current_fs = NULL;
 166                         return;
 167                 }
 168         }
 169
 170         if (catastrophic)
 171                 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
 172
 173         if (undo_file) {
 174                 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
 175                 if (retval)
 176                         exit(1);
 177         }
 178
 179 try_open_again:
 180         retval = ext2fs_open(device, open_flags, superblock, blocksize,
 181                              io_ptr, &current_fs);
 182         if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
 183             !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
 184                 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
 185                 printf("Checksum errors in superblock!  Retrying...\n");
 186                 goto try_open_again;
 187         }
 188         if (retval) {
 189                 com_err(debug_prog_name, retval,
 190                         "while trying to open %s", device);
 191                 if (retval == EXT2_ET_BAD_MAGIC)
 192                         check_plausibility(device, CHECK_FS_EXIST, NULL);
 193                 current_fs = NULL;
 194                 return;
 195         }
 196         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 197
 198         if (catastrophic)
 199                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
 200         else {
 201                 retval = ext2fs_read_bitmaps(current_fs);
 202                 if (retval) {
 203                         com_err(device, retval,
 204                                 "while reading allocation bitmaps");
 205                         goto errout;
 206                 }
 207         }
 208
 209         if (data_io) {
 210                 retval = ext2fs_set_data_io(current_fs, data_io);
 211                 if (retval) {
 212                         com_err(device, retval,
 213                                 "while setting data source");
 214                         goto errout;
 215                 }
 216         }
 217
 218         root = cwd = EXT2_ROOT_INO;
 219         return;
 220
 221 errout:
 222         retval = ext2fs_close_free(&current_fs);
 223         if (retval)
 224                 com_err(device, retval, "while trying to close filesystem");
 225 }
 226
 227 void do_open_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 228                      void *infop EXT2FS_ATTR((unused)))
 229 {
 230         int     c, err;
 231         int     catastrophic = 0;
 232         blk64_t superblock = 0;
 233         blk64_t blocksize = 0;
 234         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 235         char    *data_filename = 0;
 236         char    *undo_file = NULL;
 237
 238         reset_getopt();
 239         while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
 240                 switch (c) {
 241                 case 'i':
 242                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 243                         break;
 244                 case 'w':
 245 #ifdef READ_ONLY
 246                         goto print_usage;
 247 #else
 248                         open_flags |= EXT2_FLAG_RW;
 249 #endif /* READ_ONLY */
 250                         break;
 251                 case 'f':
 252                         open_flags |= EXT2_FLAG_FORCE;
 253                         break;
 254                 case 'e':
 255                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 256                         break;
 257                 case 'c':
 258                         catastrophic = 1;
 259                         break;
 260                 case 'd':
 261                         data_filename = optarg;
 262                         break;
 263                 case 'D':
 264                         open_flags |= EXT2_FLAG_DIRECT_IO;
 265                         break;
 266                 case 'b':
 267                         blocksize = parse_ulong(optarg, argv[0],
 268                                                 "block size", &err);
 269                         if (err)
 270                                 return;
 271                         break;
 272                 case 's':
 273                         err = strtoblk(argv[0], optarg,
 274                                        "superblock block number", &superblock);
 275                         if (err)
 276                                 return;
 277                         break;
 278                 case 'z':
 279                         undo_file = optarg;
 280                         break;
 281                 default:
 282                         goto print_usage;
 283                 }
 284         }
 285         if (optind != argc-1) {
 286                 goto print_usage;
 287         }
 288         if (check_fs_not_open(argv[0]))
 289                 return;
 290         open_filesystem(argv[optind], open_flags,
 291                         superblock, blocksize, catastrophic,
 292                         data_filename, undo_file);
 293         return;
 294
 295 print_usage:
 296         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 297                 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
 298 #ifndef READ_ONLY
 299                 "[-w] "
 300 #endif
 301                 "<device>\n", argv[0]);
 302 }
 303
 304 void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 305             void *infop EXT2FS_ATTR((unused)))
 306 {
 307         if (argc != 2) {
 308                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 309                 return;
 310         }
 311
 312         if (chdir(argv[1]) == -1) {
 313                 com_err(argv[0], errno,
 314                         "while trying to change native directory to %s",
 315                         argv[1]);
 316                 return;
 317         }
 318 }
 319
 320 static void close_filesystem(NOARGS)
 321 {
 322         int     retval;
 323
 324         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 325                 retval = ext2fs_write_inode_bitmap(current_fs);
 326                 if (retval)
 327                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 328         }
 329         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 330                 retval = ext2fs_write_block_bitmap(current_fs);
 331                 if (retval)
 332                         com_err("ext2fs_write_block_bitmap", retval, 0);
 333         }
 334         if (current_qctx)
 335                 quota_release_context(&current_qctx);
 336         retval = ext2fs_close_free(&current_fs);
 337         if (retval)
 338                 com_err("ext2fs_close", retval, 0);
 339         return;
 340 }
 341
 342 void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 343                       void *infop EXT2FS_ATTR((unused)))
 344 {
 345         int     c;
 346
 347         if (check_fs_open(argv[0]))
 348                 return;
 349
 350         reset_getopt();
 351         while ((c = getopt (argc, argv, "a")) != EOF) {
 352                 switch (c) {
 353                 case 'a':
 354                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 355                         break;
 356                 default:
 357                         goto print_usage;
 358                 }
 359         }
 360
 361         if (argc > optind) {
 362         print_usage:
 363                 com_err(0, 0, "Usage: close_filesys [-a]");
 364                 return;
 365         }
 366
 367         close_filesystem();
 368 }
 369
 370 #ifndef READ_ONLY
 371 void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 372                      void *infop EXT2FS_ATTR((unused)))
 373 {
 374         struct ext2_super_block param;
 375         errcode_t       retval;
 376         int             err;
 377         blk64_t         blocks;
 378
 379         if (common_args_process(argc, argv, 3, 3, "initialize",
 380                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 381                 return;
 382
 383         memset(&param, 0, sizeof(struct ext2_super_block));
 384         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 385         if (err)
 386                 return;
 387         ext2fs_blocks_count_set(&param, blocks);
 388         retval = ext2fs_initialize(argv[1], 0, &param,
 389                                    unix_io_manager, &current_fs);
 390         if (retval) {
 391                 com_err(argv[1], retval, "while initializing filesystem");
 392                 current_fs = NULL;
 393                 return;
 394         }
 395         root = cwd = EXT2_ROOT_INO;
 396         return;
 397 }
 398
 399 static void print_features(struct ext2_super_block * s, FILE *f)
 400 {
 401         int     i, j, printed=0;
 402         __u32   *mask = &s->s_feature_compat, m;
 403
 404         fputs("Filesystem features:", f);
 405         for (i=0; i <3; i++,mask++) {
 406                 for (j=0,m=1; j < 32; j++, m<<=1) {
 407                         if (*mask & m) {
 408                                 fprintf(f, " %s", e2p_feature2string(i, m));
 409                                 printed++;
 410                         }
 411                 }
 412         }
 413         if (printed == 0)
 414                 fputs("(none)", f);
 415         fputs("\n", f);
 416 }
 417 #endif /* READ_ONLY */
 418
 419 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 420                           const char *str, int *first, FILE *f)
 421 {
 422         if (ext2fs_bg_flags_test(fs, group, mask)) {
 423                 if (*first) {
 424                         fputs("           [", f);
 425                         *first = 0;
 426                 } else
 427                         fputs(", ", f);
 428                 fputs(str, f);
 429         }
 430 }
 431
 432 void do_show_super_stats(int argc, char *argv[],
 433                          int sci_idx EXT2FS_ATTR((unused)),
 434                          void *infop EXT2FS_ATTR((unused)))
 435 {
 436         const char *units ="block";
 437         dgrp_t  i;
 438         FILE    *out;
 439         int     c, header_only = 0;
 440         int     numdirs = 0, first, gdt_csum;
 441
 442         reset_getopt();
 443         while ((c = getopt (argc, argv, "h")) != EOF) {
 444                 switch (c) {
 445                 case 'h':
 446                         header_only++;
 447                         break;
 448                 default:
 449                         goto print_usage;
 450                 }
 451         }
 452         if (optind != argc) {
 453                 goto print_usage;
 454         }
 455         if (check_fs_open(argv[0]))
 456                 return;
 457         out = open_pager();
 458
 459         if (ext2fs_has_feature_bigalloc(current_fs->super))
 460                 units = "cluster";
 461
 462         list_super2(current_fs->super, out);
 463         if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
 464             !ext2fs_superblock_csum_verify(current_fs,
 465                                            current_fs->super)) {
 466                 __u32 orig_csum = current_fs->super->s_checksum;
 467
 468                 ext2fs_superblock_csum_set(current_fs,
 469                                            current_fs->super);
 470                 fprintf(out, "Expected Checksum:        0x%08x\n",
 471                         current_fs->super->s_checksum);
 472                 current_fs->super->s_checksum = orig_csum;
 473         }
 474         for (i=0; i < current_fs->group_desc_count; i++)
 475                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 476         fprintf(out, "Directories:              %u\n", numdirs);
 477
 478         if (header_only) {
 479                 close_pager(out);
 480                 return;
 481         }
 482
 483         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 484         for (i = 0; i < current_fs->group_desc_count; i++) {
 485                 fprintf(out, " Group %2d: block bitmap at %llu, "
 486                         "inode bitmap at %llu, "
 487                         "inode table at %llu\n"
 488                         "           %u free %s%s, "
 489                         "%u free %s, "
 490                         "%u used %s%s",
 491                         i, ext2fs_block_bitmap_loc(current_fs, i),
 492                         ext2fs_inode_bitmap_loc(current_fs, i),
 493                         ext2fs_inode_table_loc(current_fs, i),
 494                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 495                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 496                         "s" : "",
 497                         ext2fs_bg_free_inodes_count(current_fs, i),
 498                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 499                         "inodes" : "inode",
 500                         ext2fs_bg_used_dirs_count(current_fs, i),
 501                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 502                                 : "directory", gdt_csum ? ", " : "\n");
 503                 if (gdt_csum)
 504                         fprintf(out, "%u unused %s\n",
 505                                 ext2fs_bg_itable_unused(current_fs, i),
 506                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 507                                 "inodes" : "inode");
 508                 first = 1;
 509                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 510                               &first, out);
 511                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 512                               &first, out);
 513                 if (gdt_csum) {
 514                         fprintf(out, "%sChecksum 0x%04x",
 515                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 516                         first = 0;
 517                 }
 518                 if (!first)
 519                         fputs("]\n", out);
 520         }
 521         close_pager(out);
 522         return;
 523 print_usage:
 524         fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
 525 }
 526
 527 #ifndef READ_ONLY
 528 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 529                       char **argv EXT2FS_ATTR((unused)),
 530                       int sci_idx EXT2FS_ATTR((unused)),
 531                       void *infop EXT2FS_ATTR((unused)))
 532 {
 533         if (check_fs_open(argv[0]))
 534                 return;
 535         if (check_fs_read_write(argv[0]))
 536                 return;
 537
 538         if (argv[1] && !strcmp(argv[1], "-clean"))
 539                 current_fs->super->s_state |= EXT2_VALID_FS;
 540         else
 541                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 542         ext2fs_mark_super_dirty(current_fs);
 543 }
 544 #endif /* READ_ONLY */
 545
 546 struct list_blocks_struct {
 547         FILE            *f;
 548         e2_blkcnt_t     total;
 549         blk64_t         first_block, last_block;
 550         e2_blkcnt_t     first_bcnt, last_bcnt;
 551         e2_blkcnt_t     first;
 552 };
 553
 554 static void finish_range(struct list_blocks_struct *lb)
 555 {
 556         if (lb->first_block == 0)
 557                 return;
 558         if (lb->first)
 559                 lb->first = 0;
 560         else
 561                 fprintf(lb->f, ", ");
 562         if (lb->first_block == lb->last_block)
 563                 fprintf(lb->f, "(%lld):%llu",
 564                         (long long)lb->first_bcnt, lb->first_block);
 565         else
 566                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 567                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 568                         lb->first_block, lb->last_block);
 569         lb->first_block = 0;
 570 }
 571
 572 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 573                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 574                             blk64_t ref_block EXT2FS_ATTR((unused)),
 575                             int ref_offset EXT2FS_ATTR((unused)),
 576                             void *private)
 577 {
 578         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 579
 580         lb->total++;
 581         if (blockcnt >= 0) {
 582                 /*
 583                  * See if we can add on to the existing range (if it exists)
 584                  */
 585                 if (lb->first_block &&
 586                     (lb->last_block+1 == *blocknr) &&
 587                     (lb->last_bcnt+1 == blockcnt)) {
 588                         lb->last_block = *blocknr;
 589                         lb->last_bcnt = blockcnt;
 590                         return 0;
 591                 }
 592                 /*
 593                  * Start a new range.
 594                  */
 595                 finish_range(lb);
 596                 lb->first_block = lb->last_block = *blocknr;
 597                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 598                 return 0;
 599         }
 600         /*
 601          * Not a normal block.  Always force a new range.
 602          */
 603         finish_range(lb);
 604         if (lb->first)
 605                 lb->first = 0;
 606         else
 607                 fprintf(lb->f, ", ");
 608         if (blockcnt == -1)
 609                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 610         else if (blockcnt == -2)
 611                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 612         else if (blockcnt == -3)
 613                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 614         return 0;
 615 }
 616
 617 static void internal_dump_inode_extra(FILE *out,
 618                                       const char *prefix EXT2FS_ATTR((unused)),
 619                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 620                                       struct ext2_inode_large *inode)
 621 {
 622         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 623         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 624                         EXT2_GOOD_OLD_INODE_SIZE) {
 625                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 626                                 inode->i_extra_isize);
 627                 return;
 628         }
 629 }
 630
 631 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 632 {
 633         struct list_blocks_struct lb;
 634
 635         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 636         lb.total = 0;
 637         lb.first_block = 0;
 638         lb.f = f;
 639         lb.first = 1;
 640         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 641                               list_blocks_proc, (void *)&lb);
 642         finish_range(&lb);
 643         if (lb.total)
 644                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 645         fprintf(f,"\n");
 646 }
 647
 648 static int int_log10(unsigned long long arg)
 649 {
 650         int     l = 0;
 651
 652         arg = arg / 10;
 653         while (arg) {
 654                 l++;
 655                 arg = arg / 10;
 656         }
 657         return l;
 658 }
 659
 660 #define DUMP_LEAF_EXTENTS       0x01
 661 #define DUMP_NODE_EXTENTS       0x02
 662 #define DUMP_EXTENT_TABLE       0x04
 663
 664 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 665                          int flags, int logical_width, int physical_width)
 666 {
 667         ext2_extent_handle_t    handle;
 668         struct ext2fs_extent    extent;
 669         struct ext2_extent_info info;
 670         int                     op = EXT2_EXTENT_ROOT;
 671         unsigned int            printed = 0;
 672         errcode_t               errcode;
 673
 674         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 675         if (errcode)
 676                 return;
 677
 678         if (flags & DUMP_EXTENT_TABLE)
 679                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 680                         (logical_width*2)+3, "Logical",
 681                         (physical_width*2)+3, "Physical");
 682         else
 683                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 684
 685         while (1) {
 686                 errcode = ext2fs_extent_get(handle, op, &extent);
 687
 688                 if (errcode)
 689                         break;
 690
 691                 op = EXT2_EXTENT_NEXT;
 692
 693                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 694                         continue;
 695
 696                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 697                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 698                                 continue;
 699                 } else {
 700                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 701                                 continue;
 702                 }
 703
 704                 errcode = ext2fs_extent_get_info(handle, &info);
 705                 if (errcode)
 706                         continue;
 707
 708                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 709                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 710                                 continue;
 711
 712                         if (flags & DUMP_EXTENT_TABLE) {
 713                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 714                                         "%*llu%*s %6u\n",
 715                                         info.curr_level, info.max_depth,
 716                                         info.curr_entry, info.num_entries,
 717                                         logical_width,
 718                                         extent.e_lblk,
 719                                         logical_width,
 720                                         extent.e_lblk + (extent.e_len - 1),
 721                                         physical_width,
 722                                         extent.e_pblk,
 723                                         physical_width+3, "", extent.e_len);
 724                                 continue;
 725                         }
 726
 727                         fprintf(f, "%s(ETB%d):%llu",
 728                                 printed ? ", " : "", info.curr_level,
 729                                 extent.e_pblk);
 730                         printed = 1;
 731                         continue;
 732                 }
 733
 734                 if (flags & DUMP_EXTENT_TABLE) {
 735                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 736                                 "%*llu - %*llu %6u %s\n",
 737                                 info.curr_level, info.max_depth,
 738                                 info.curr_entry, info.num_entries,
 739                                 logical_width,
 740                                 extent.e_lblk,
 741                                 logical_width,
 742                                 extent.e_lblk + (extent.e_len - 1),
 743                                 physical_width,
 744                                 extent.e_pblk,
 745                                 physical_width,
 746                                 extent.e_pblk + (extent.e_len - 1),
 747                                 extent.e_len,
 748                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 749                                         "Uninit" : "");
 750                         continue;
 751                 }
 752
 753                 if (extent.e_len == 0)
 754                         continue;
 755                 else if (extent.e_len == 1)
 756                         fprintf(f,
 757                                 "%s(%lld%s):%lld",
 758                                 printed ? ", " : "",
 759                                 extent.e_lblk,
 760                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 761                                 "[u]" : "",
 762                                 extent.e_pblk);
 763                 else
 764                         fprintf(f,
 765                                 "%s(%lld-%lld%s):%lld-%lld",
 766                                 printed ? ", " : "",
 767                                 extent.e_lblk,
 768                                 extent.e_lblk + (extent.e_len - 1),
 769                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 770                                         "[u]" : "",
 771                                 extent.e_pblk,
 772                                 extent.e_pblk + (extent.e_len - 1));
 773                 printed = 1;
 774         }
 775         if (printed)
 776                 fprintf(f, "\n");
 777         ext2fs_extent_free(handle);
 778 }
 779
 780 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 781 {
 782         errcode_t retval;
 783         size_t size;
 784
 785         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 786         if (!retval)
 787                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 788 }
 789
 790 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
 791                                 struct ext2_inode *inode, const char *prefix)
 792 {
 793         errcode_t retval;
 794         char *buf = NULL;
 795         size_t size;
 796
 797         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 798         if (retval)
 799                 goto out;
 800
 801         retval = ext2fs_get_memzero(size + 1, &buf);
 802         if (retval)
 803                 goto out;
 804
 805         retval = ext2fs_inline_data_get(current_fs, inode_num,
 806                                         inode, buf, &size);
 807         if (retval)
 808                 goto out;
 809
 810         fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 811                 (int)size, buf);
 812 out:
 813         if (buf)
 814                 ext2fs_free_mem(&buf);
 815         if (retval)
 816                 com_err(__func__, retval, "while dumping link destination");
 817 }
 818
 819 void internal_dump_inode(FILE *out, const char *prefix,
 820                          ext2_ino_t inode_num, struct ext2_inode *inode,
 821                          int do_dump_blocks)
 822 {
 823         const char *i_type;
 824         char frag, fsize;
 825         int os = current_fs->super->s_creator_os;
 826         struct ext2_inode_large *large_inode;
 827         int is_large_inode = 0;
 828
 829         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 830                 is_large_inode = 1;
 831         large_inode = (struct ext2_inode_large *) inode;
 832
 833         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 834         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 835         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 836         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 837         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 838         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 839         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 840         else i_type = "bad type";
 841         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 842         fprintf(out, "%sMode:  0%03o   Flags: 0x%x\n",
 843                 prefix, inode->i_mode & 07777, inode->i_flags);
 844         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 845                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 846                         prefix, inode->i_generation, large_inode->i_version_hi,
 847                         inode->osd1.linux1.l_i_version);
 848         } else {
 849                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 850                         inode->i_generation, inode->osd1.linux1.l_i_version);
 851         }
 852         fprintf(out, "%sUser: %5d   Group: %5d",
 853                 prefix, inode_uid(*inode), inode_gid(*inode));
 854         if (is_large_inode && large_inode->i_extra_isize >= 32)
 855                 fprintf(out, "   Project: %5d", large_inode->i_projid);
 856         fputs("   Size: ", out);
 857         if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
 858                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 859         else
 860                 fprintf(out, "%u\n", inode->i_size);
 861         if (os == EXT2_OS_HURD)
 862                 fprintf(out,
 863                         "%sFile ACL: %u Translator: %u\n",
 864                         prefix,
 865                         inode->i_file_acl,
 866                         inode->osd1.hurd1.h_i_translator);
 867         else
 868                 fprintf(out, "%sFile ACL: %llu\n",
 869                         prefix,
 870                         inode->i_file_acl | ((long long)
 871                                 (inode->osd2.linux2.l_i_file_acl_high) << 32));
 872         if (os != EXT2_OS_HURD)
 873                 fprintf(out, "%sLinks: %u   Blockcount: %llu\n",
 874                         prefix, inode->i_links_count,
 875                         (((unsigned long long)
 876                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 877                         inode->i_blocks);
 878         else
 879                 fprintf(out, "%sLinks: %u   Blockcount: %u\n",
 880                         prefix, inode->i_links_count, inode->i_blocks);
 881         switch (os) {
 882             case EXT2_OS_HURD:
 883                 frag = inode->osd2.hurd2.h_i_frag;
 884                 fsize = inode->osd2.hurd2.h_i_fsize;
 885                 break;
 886             default:
 887                 frag = fsize = 0;
 888         }
 889         fprintf(out, "%sFragment:  Address: %u    Number: %u    Size: %u\n",
 890                 prefix, inode->i_faddr, frag, fsize);
 891         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 892                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 893                         inode->i_ctime, large_inode->i_ctime_extra,
 894                         inode_time_to_string(inode->i_ctime,
 895                                              large_inode->i_ctime_extra));
 896                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 897                         inode->i_atime, large_inode->i_atime_extra,
 898                         inode_time_to_string(inode->i_atime,
 899                                              large_inode->i_atime_extra));
 900                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 901                         inode->i_mtime, large_inode->i_mtime_extra,
 902                         inode_time_to_string(inode->i_mtime,
 903                                              large_inode->i_mtime_extra));
 904                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 905                         large_inode->i_crtime, large_inode->i_crtime_extra,
 906                         inode_time_to_string(large_inode->i_crtime,
 907                                              large_inode->i_crtime_extra));
 908                 if (inode->i_dtime)
 909                         fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
 910                                 large_inode->i_dtime, large_inode->i_ctime_extra,
 911                                 inode_time_to_string(inode->i_dtime,
 912                                                      large_inode->i_ctime_extra));
 913         } else {
 914                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 915                         time_to_string((__s32) inode->i_ctime));
 916                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 917                         time_to_string((__s32) inode->i_atime));
 918                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 919                         time_to_string((__s32) inode->i_mtime));
 920                 if (inode->i_dtime)
 921                         fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
 922                                 inode->i_dtime,
 923                                 time_to_string((__s32) inode->i_dtime));
 924         }
 925         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 926                 internal_dump_inode_extra(out, prefix, inode_num,
 927                                           (struct ext2_inode_large *) inode);
 928         dump_inode_attributes(out, inode_num);
 929         if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
 930                 __u32 crc = inode->i_checksum_lo;
 931                 if (is_large_inode &&
 932                     large_inode->i_extra_isize >=
 933                                 (offsetof(struct ext2_inode_large,
 934                                           i_checksum_hi) -
 935                                  EXT2_GOOD_OLD_INODE_SIZE))
 936                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 937                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 938         }
 939
 940         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
 941                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 942                         (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
 943         else if (LINUX_S_ISLNK(inode->i_mode) &&
 944                    (inode->i_flags & EXT4_INLINE_DATA_FL))
 945                 dump_inline_symlink(out, inode_num, inode, prefix);
 946         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 947                 int major, minor;
 948                 const char *devnote;
 949
 950                 if (inode->i_block[0]) {
 951                         major = (inode->i_block[0] >> 8) & 255;
 952                         minor = inode->i_block[0] & 255;
 953                         devnote = "";
 954                 } else {
 955                         major = (inode->i_block[1] & 0xfff00) >> 8;
 956                         minor = ((inode->i_block[1] & 0xff) |
 957                                  ((inode->i_block[1] >> 12) & 0xfff00));
 958                         devnote = "(New-style) ";
 959                 }
 960                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 961                         devnote, major, minor, major, minor);
 962         } else if (do_dump_blocks) {
 963                 if (inode->i_flags & EXT4_EXTENTS_FL)
 964                         dump_extents(out, prefix, inode_num,
 965                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 966                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 967                         dump_inline_data(out, prefix, inode_num);
 968                 else
 969                         dump_blocks(out, prefix, inode_num);
 970         }
 971 }
 972
 973 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 974 {
 975         FILE    *out;
 976
 977         out = open_pager();
 978         internal_dump_inode(out, "", inode_num, inode, 1);
 979         close_pager(out);
 980 }
 981
 982 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
 983              void *infop EXT2FS_ATTR((unused)))
 984 {
 985         ext2_ino_t      inode;
 986         struct ext2_inode * inode_buf;
 987
 988         if (check_fs_open(argv[0]))
 989                 return;
 990
 991         inode_buf = (struct ext2_inode *)
 992                         malloc(EXT2_INODE_SIZE(current_fs->super));
 993         if (!inode_buf) {
 994                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 995                 return;
 996         }
 997
 998         if (common_inode_args_process(argc, argv, &inode, 0)) {
 999                 free(inode_buf);
1000                 return;
1001         }
1002
1003         if (debugfs_read_inode2(inode, inode_buf, argv[0],
1004                                 EXT2_INODE_SIZE(current_fs->super), 0)) {
1005                 free(inode_buf);
1006                 return;
1007         }
1008
1009         dump_inode(inode, inode_buf);
1010         free(inode_buf);
1011         return;
1012 }
1013
1014 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1015                      void *infop EXT2FS_ATTR((unused)))
1016 {
1017         struct ext2_inode inode;
1018         ext2_ino_t      ino;
1019         FILE            *out;
1020         int             c, flags = 0;
1021         int             logical_width;
1022         int             physical_width;
1023
1024         reset_getopt();
1025         while ((c = getopt(argc, argv, "nl")) != EOF) {
1026                 switch (c) {
1027                 case 'n':
1028                         flags |= DUMP_NODE_EXTENTS;
1029                         break;
1030                 case 'l':
1031                         flags |= DUMP_LEAF_EXTENTS;
1032                         break;
1033                 }
1034         }
1035
1036         if (argc != optind + 1) {
1037                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1038                 return;
1039         }
1040
1041         if (flags == 0)
1042                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1043         flags |= DUMP_EXTENT_TABLE;
1044
1045         if (check_fs_open(argv[0]))
1046                 return;
1047
1048         ino = string_to_inode(argv[optind]);
1049         if (ino == 0)
1050                 return;
1051
1052         if (debugfs_read_inode(ino, &inode, argv[0]))
1053                 return;
1054
1055         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1056                 fprintf(stderr, "%s: does not uses extent block maps\n",
1057                         argv[optind]);
1058                 return;
1059         }
1060
1061         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1062                                   current_fs->blocksize) + 1;
1063         if (logical_width < 5)
1064                 logical_width = 5;
1065         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1066         if (physical_width < 5)
1067                 physical_width = 5;
1068
1069         out = open_pager();
1070         dump_extents(out, "", ino, flags, logical_width, physical_width);
1071         close_pager(out);
1072         return;
1073 }
1074
1075 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1076                              blk64_t *blocknr,
1077                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1078                              blk64_t ref_block EXT2FS_ATTR((unused)),
1079                              int ref_offset EXT2FS_ATTR((unused)),
1080                              void *private EXT2FS_ATTR((unused)))
1081 {
1082         printf("%llu ", *blocknr);
1083         return 0;
1084 }
1085
1086 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1087                void *infop EXT2FS_ATTR((unused)))
1088 {
1089         ext2_ino_t      inode;
1090
1091         if (check_fs_open(argv[0]))
1092                 return;
1093
1094         if (common_inode_args_process(argc, argv, &inode, 0)) {
1095                 return;
1096         }
1097
1098         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1099                               print_blocks_proc, NULL);
1100         fputc('\n', stdout);
1101         return;
1102 }
1103
1104 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1105                void *infop EXT2FS_ATTR((unused)))
1106 {
1107         ext2_ino_t inode;
1108         int retval;
1109
1110         if (common_inode_args_process(argc, argv, &inode, 0))
1111                 return;
1112
1113         retval = ext2fs_check_directory(current_fs, inode);
1114         if (retval)  {
1115                 com_err(argv[1], retval, 0);
1116                 return;
1117         }
1118         root = inode;
1119 }
1120
1121 #ifndef READ_ONLY
1122 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1123              void *infop EXT2FS_ATTR((unused)))
1124 {
1125         ext2_ino_t inode;
1126         struct ext2_inode inode_buf;
1127
1128         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1129                 return;
1130
1131         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1132                 return;
1133         memset(&inode_buf, 0, sizeof(inode_buf));
1134         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1135                 return;
1136 }
1137
1138 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1139               void *infop EXT2FS_ATTR((unused)))
1140 {
1141         unsigned int    len = 1;
1142         int             err = 0;
1143         ext2_ino_t      inode;
1144
1145         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1146                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1147                 return;
1148         if (check_fs_read_write(argv[0]))
1149                 return;
1150
1151         inode = string_to_inode(argv[1]);
1152         if (!inode)
1153                 return;
1154
1155         if (argc == 3) {
1156                 len = parse_ulong(argv[2], argv[0], "length", &err);
1157                 if (err)
1158                         return;
1159         }
1160
1161         if (len == 1 &&
1162             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1163                 com_err(argv[0], 0, "Warning: inode already clear");
1164         while (len-- > 0)
1165                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1166         ext2fs_mark_ib_dirty(current_fs);
1167 }
1168
1169 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1170              void *infop EXT2FS_ATTR((unused)))
1171 {
1172         unsigned int    len = 1;
1173         int             err = 0;
1174         ext2_ino_t      inode;
1175
1176         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1177                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1178                 return;
1179         if (check_fs_read_write(argv[0]))
1180                 return;
1181
1182         inode = string_to_inode(argv[1]);
1183         if (!inode)
1184                 return;
1185
1186         if (argc == 3) {
1187                 len = parse_ulong(argv[2], argv[0], "length", &err);
1188                 if (err)
1189                         return;
1190         }
1191
1192         if ((len == 1) &&
1193             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1194                 com_err(argv[0], 0, "Warning: inode already set");
1195         while (len-- > 0)
1196                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1197         ext2fs_mark_ib_dirty(current_fs);
1198 }
1199 #endif /* READ_ONLY */
1200
1201 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1202               void *infop EXT2FS_ATTR((unused)))
1203 {
1204         ext2_ino_t inode;
1205
1206         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1207                 return;
1208
1209         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1210                 printf("Inode %u is marked in use\n", inode);
1211         else
1212                 printf("Inode %u is not in use\n", inode);
1213 }
1214
1215 #ifndef READ_ONLY
1216 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1217               void *infop EXT2FS_ATTR((unused)))
1218 {
1219         blk64_t block;
1220         blk64_t count = 1;
1221
1222         if (common_block_args_process(argc, argv, &block, &count))
1223                 return;
1224         if (check_fs_read_write(argv[0]))
1225                 return;
1226         while (count-- > 0) {
1227                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1228                         com_err(argv[0], 0, "Warning: block %llu already clear",
1229                                 block);
1230                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1231                 block++;
1232         }
1233         ext2fs_mark_bb_dirty(current_fs);
1234 }
1235
1236 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1237              void *infop EXT2FS_ATTR((unused)))
1238 {
1239         blk64_t block;
1240         blk64_t count = 1;
1241
1242         if (common_block_args_process(argc, argv, &block, &count))
1243                 return;
1244         if (check_fs_read_write(argv[0]))
1245                 return;
1246         while (count-- > 0) {
1247                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1248                         com_err(argv[0], 0, "Warning: block %llu already set",
1249                                 block);
1250                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1251                 block++;
1252         }
1253         ext2fs_mark_bb_dirty(current_fs);
1254 }
1255 #endif /* READ_ONLY */
1256
1257 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1258               void *infop EXT2FS_ATTR((unused)))
1259 {
1260         blk64_t block;
1261         blk64_t count = 1;
1262
1263         if (common_block_args_process(argc, argv, &block, &count))
1264                 return;
1265         while (count-- > 0) {
1266                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1267                         printf("Block %llu marked in use\n", block);
1268                 else
1269                         printf("Block %llu not in use\n", block);
1270                 block++;
1271         }
1272 }
1273
1274 #ifndef READ_ONLY
1275 static void modify_u8(char *com, const char *prompt,
1276                       const char *format, __u8 *val)
1277 {
1278         char buf[200];
1279         unsigned long v;
1280         char *tmp;
1281
1282         sprintf(buf, format, *val);
1283         printf("%30s    [%s] ", prompt, buf);
1284         if (!fgets(buf, sizeof(buf), stdin))
1285                 return;
1286         if (buf[strlen (buf) - 1] == '\n')
1287                 buf[strlen (buf) - 1] = '\0';
1288         if (!buf[0])
1289                 return;
1290         v = strtoul(buf, &tmp, 0);
1291         if (*tmp)
1292                 com_err(com, 0, "Bad value - %s", buf);
1293         else
1294                 *val = v;
1295 }
1296
1297 static void modify_u16(char *com, const char *prompt,
1298                        const char *format, __u16 *val)
1299 {
1300         char buf[200];
1301         unsigned long v;
1302         char *tmp;
1303
1304         sprintf(buf, format, *val);
1305         printf("%30s    [%s] ", prompt, buf);
1306         if (!fgets(buf, sizeof(buf), stdin))
1307                 return;
1308         if (buf[strlen (buf) - 1] == '\n')
1309                 buf[strlen (buf) - 1] = '\0';
1310         if (!buf[0])
1311                 return;
1312         v = strtoul(buf, &tmp, 0);
1313         if (*tmp)
1314                 com_err(com, 0, "Bad value - %s", buf);
1315         else
1316                 *val = v;
1317 }
1318
1319 static void modify_u32(char *com, const char *prompt,
1320                        const char *format, __u32 *val)
1321 {
1322         char buf[200];
1323         unsigned long v;
1324         char *tmp;
1325
1326         sprintf(buf, format, *val);
1327         printf("%30s    [%s] ", prompt, buf);
1328         if (!fgets(buf, sizeof(buf), stdin))
1329                 return;
1330         if (buf[strlen (buf) - 1] == '\n')
1331                 buf[strlen (buf) - 1] = '\0';
1332         if (!buf[0])
1333                 return;
1334         v = strtoul(buf, &tmp, 0);
1335         if (*tmp)
1336                 com_err(com, 0, "Bad value - %s", buf);
1337         else
1338                 *val = v;
1339 }
1340
1341
1342 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1343                      void *infop EXT2FS_ATTR((unused)))
1344 {
1345         struct ext2_inode inode;
1346         ext2_ino_t      inode_num;
1347         int             i;
1348         unsigned char   *frag, *fsize;
1349         char            buf[80];
1350         int             os;
1351         const char      *hex_format = "0x%x";
1352         const char      *octal_format = "0%o";
1353         const char      *decimal_format = "%d";
1354         const char      *unsignedlong_format = "%lu";
1355
1356         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1357                 return;
1358
1359         os = current_fs->super->s_creator_os;
1360
1361         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1362                 return;
1363
1364         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1365         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1366         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1367         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1368         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1369         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1370         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1371         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1372         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1373         if (os == EXT2_OS_LINUX)
1374                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1375                            &inode.osd2.linux2.l_i_blocks_hi);
1376         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1377         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1378         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1379 #if 0
1380         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1381 #endif
1382         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1383
1384         modify_u32(argv[0], "High 32bits of size", decimal_format,
1385                    &inode.i_size_high);
1386
1387         if (os == EXT2_OS_HURD)
1388                 modify_u32(argv[0], "Translator Block",
1389                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1390
1391         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1392         switch (os) {
1393             case EXT2_OS_HURD:
1394                 frag = &inode.osd2.hurd2.h_i_frag;
1395                 fsize = &inode.osd2.hurd2.h_i_fsize;
1396                 break;
1397             default:
1398                 frag = fsize = 0;
1399         }
1400         if (frag)
1401                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1402         if (fsize)
1403                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1404
1405         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1406                 sprintf(buf, "Direct Block #%u", i);
1407                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1408         }
1409         modify_u32(argv[0], "Indirect Block", decimal_format,
1410                     &inode.i_block[EXT2_IND_BLOCK]);
1411         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1412                     &inode.i_block[EXT2_DIND_BLOCK]);
1413         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1414                     &inode.i_block[EXT2_TIND_BLOCK]);
1415         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1416                 return;
1417 }
1418 #endif /* READ_ONLY */
1419
1420 void do_change_working_dir(int argc, char *argv[],
1421                            int sci_idx EXT2FS_ATTR((unused)),
1422                            void *infop EXT2FS_ATTR((unused)))
1423 {
1424         ext2_ino_t      inode;
1425         int             retval;
1426
1427         if (common_inode_args_process(argc, argv, &inode, 0))
1428                 return;
1429
1430         retval = ext2fs_check_directory(current_fs, inode);
1431         if (retval) {
1432                 com_err(argv[1], retval, 0);
1433                 return;
1434         }
1435         cwd = inode;
1436         return;
1437 }
1438
1439 void do_print_working_directory(int argc, char *argv[],
1440                                 int sci_idx EXT2FS_ATTR((unused)),
1441                                 void *infop EXT2FS_ATTR((unused)))
1442 {
1443         int     retval;
1444         char    *pathname = NULL;
1445
1446         if (common_args_process(argc, argv, 1, 1,
1447                                 "print_working_directory", "", 0))
1448                 return;
1449
1450         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1451         if (retval) {
1452                 com_err(argv[0], retval,
1453                         "while trying to get pathname of cwd");
1454         }
1455         printf("[pwd]   INODE: %6u  PATH: %s\n",
1456                cwd, pathname ? pathname : "NULL");
1457         if (pathname) {
1458                 free(pathname);
1459                 pathname = NULL;
1460         }
1461         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1462         if (retval) {
1463                 com_err(argv[0], retval,
1464                         "while trying to get pathname of root");
1465         }
1466         printf("[root]  INODE: %6u  PATH: %s\n",
1467                root, pathname ? pathname : "NULL");
1468         if (pathname) {
1469                 free(pathname);
1470                 pathname = NULL;
1471         }
1472         return;
1473 }
1474
1475 #ifndef READ_ONLY
1476 static void make_link(char *sourcename, char *destname)
1477 {
1478         ext2_ino_t      ino;
1479         struct ext2_inode inode;
1480         int             retval;
1481         ext2_ino_t      dir;
1482         char            *dest, *cp, *base_name;
1483
1484         /*
1485          * Get the source inode
1486          */
1487         ino = string_to_inode(sourcename);
1488         if (!ino)
1489                 return;
1490         base_name = strrchr(sourcename, '/');
1491         if (base_name)
1492                 base_name++;
1493         else
1494                 base_name = sourcename;
1495         /*
1496          * Figure out the destination.  First see if it exists and is
1497          * a directory.
1498          */
1499         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1500                 dest = base_name;
1501         else {
1502                 /*
1503                  * OK, it doesn't exist.  See if it is
1504                  * '<dir>/basename' or 'basename'
1505                  */
1506                 cp = strrchr(destname, '/');
1507                 if (cp) {
1508                         *cp = 0;
1509                         dir = string_to_inode(destname);
1510                         if (!dir)
1511                                 return;
1512                         dest = cp+1;
1513                 } else {
1514                         dir = cwd;
1515                         dest = destname;
1516                 }
1517         }
1518
1519         if (debugfs_read_inode(ino, &inode, sourcename))
1520                 return;
1521
1522         retval = ext2fs_link(current_fs, dir, dest, ino,
1523                              ext2_file_type(inode.i_mode));
1524         if (retval)
1525                 com_err("make_link", retval, 0);
1526         return;
1527 }
1528
1529
1530 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1531              void *infop EXT2FS_ATTR((unused)))
1532 {
1533         if (common_args_process(argc, argv, 3, 3, "link",
1534                                 "<source file> <dest_name>", CHECK_FS_RW))
1535                 return;
1536
1537         make_link(argv[1], argv[2]);
1538 }
1539
1540 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1541                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1542                             blk64_t ref_block EXT2FS_ATTR((unused)),
1543                             int ref_offset EXT2FS_ATTR((unused)),
1544                             void *private EXT2FS_ATTR((unused)))
1545 {
1546         blk64_t block;
1547
1548         block = *blocknr;
1549         ext2fs_block_alloc_stats2(fs, block, +1);
1550         return 0;
1551 }
1552
1553 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1554               void *infop EXT2FS_ATTR((unused)))
1555 {
1556         ext2_ino_t      ino;
1557         struct ext2_inode inode;
1558
1559         if (common_args_process(argc, argv, 2, 3, "undelete",
1560                                 "<inode_num> [dest_name]",
1561                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1562                 return;
1563
1564         ino = string_to_inode(argv[1]);
1565         if (!ino)
1566                 return;
1567
1568         if (debugfs_read_inode(ino, &inode, argv[1]))
1569                 return;
1570
1571         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1572                 com_err(argv[1], 0, "Inode is not marked as deleted");
1573                 return;
1574         }
1575
1576         /*
1577          * XXX this function doesn't handle changing the links count on the
1578          * parent directory when undeleting a directory.
1579          */
1580         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1581         inode.i_dtime = 0;
1582
1583         if (debugfs_write_inode(ino, &inode, argv[0]))
1584                 return;
1585
1586         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1587                               mark_blocks_proc, NULL);
1588
1589         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1590
1591         if (argc > 2)
1592                 make_link(argv[1], argv[2]);
1593 }
1594
1595 static void unlink_file_by_name(char *filename)
1596 {
1597         int             retval;
1598         ext2_ino_t      dir;
1599         char            *base_name;
1600
1601         base_name = strrchr(filename, '/');
1602         if (base_name) {
1603                 *base_name++ = '\0';
1604                 dir = string_to_inode(filename);
1605                 if (!dir)
1606                         return;
1607         } else {
1608                 dir = cwd;
1609                 base_name = filename;
1610         }
1611         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1612         if (retval)
1613                 com_err("unlink_file_by_name", retval, 0);
1614         return;
1615 }
1616
1617 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1618                void *infop EXT2FS_ATTR((unused)))
1619 {
1620         if (common_args_process(argc, argv, 2, 2, "link",
1621                                 "<pathname>", CHECK_FS_RW))
1622                 return;
1623
1624         unlink_file_by_name(argv[1]);
1625 }
1626
1627 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1628                    void *infop EXT2FS_ATTR((unused)))
1629 {
1630         ext2_ino_t      src_ino, dest_ino;
1631         unsigned char   buf[4096];
1632
1633         if (common_args_process(argc, argv, 3, 3, "copy_inode",
1634                                 "<source file> <dest_name>", CHECK_FS_RW))
1635                 return;
1636
1637         src_ino = string_to_inode(argv[1]);
1638         if (!src_ino)
1639                 return;
1640
1641         dest_ino = string_to_inode(argv[2]);
1642         if (!dest_ino)
1643                 return;
1644
1645         if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1646                                 argv[0], sizeof(buf), 0))
1647                 return;
1648
1649         if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1650                                  argv[0], sizeof(buf), 0))
1651                 return;
1652 }
1653
1654 #endif /* READ_ONLY */
1655
1656 void do_find_free_block(int argc, char *argv[],
1657                         int sci_idx EXT2FS_ATTR((unused)),
1658                         void *infop EXT2FS_ATTR((unused)))
1659 {
1660         blk64_t free_blk, goal, first_free = 0;
1661         int             count;
1662         errcode_t       retval;
1663         char            *tmp;
1664
1665         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1666                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1667                 return;
1668         }
1669         if (check_fs_open(argv[0]))
1670                 return;
1671
1672         if (argc > 1) {
1673                 count = strtol(argv[1],&tmp,0);
1674                 if (*tmp) {
1675                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1676                         return;
1677                 }
1678         } else
1679                 count = 1;
1680
1681         if (argc > 2) {
1682                 goal = strtol(argv[2], &tmp, 0);
1683                 if (*tmp) {
1684                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1685                         return;
1686                 }
1687         }
1688         else
1689                 goal = current_fs->super->s_first_data_block;
1690
1691         printf("Free blocks found: ");
1692         free_blk = goal - 1;
1693         while (count-- > 0) {
1694                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1695                                            &free_blk);
1696                 if (first_free) {
1697                         if (first_free == free_blk)
1698                                 break;
1699                 } else
1700                         first_free = free_blk;
1701                 if (retval) {
1702                         com_err("ext2fs_new_block", retval, 0);
1703                         return;
1704                 } else
1705                         printf("%llu ", free_blk);
1706         }
1707         printf("\n");
1708 }
1709
1710 void do_find_free_inode(int argc, char *argv[],
1711                         int sci_idx EXT2FS_ATTR((unused)),
1712                         void *infop EXT2FS_ATTR((unused)))
1713 {
1714         ext2_ino_t      free_inode, dir;
1715         int             mode;
1716         int             retval;
1717         char            *tmp;
1718
1719         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1720                 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1721                 return;
1722         }
1723         if (check_fs_open(argv[0]))
1724                 return;
1725
1726         if (argc > 1) {
1727                 dir = strtol(argv[1], &tmp, 0);
1728                 if (*tmp) {
1729                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1730                         return;
1731                 }
1732         }
1733         else
1734                 dir = root;
1735         if (argc > 2) {
1736                 mode = strtol(argv[2], &tmp, 0);
1737                 if (*tmp) {
1738                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1739                         return;
1740                 }
1741         } else
1742                 mode = 010755;
1743
1744         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1745         if (retval)
1746                 com_err("ext2fs_new_inode", retval, 0);
1747         else
1748                 printf("Free inode found: %u\n", free_inode);
1749 }
1750
1751 #ifndef READ_ONLY
1752 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1753               void *infop EXT2FS_ATTR((unused)))
1754 {
1755         errcode_t       retval;
1756
1757         if (common_args_process(argc, argv, 3, 3, "write",
1758                                 "<native file> <new file>", CHECK_FS_RW))
1759                 return;
1760
1761         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1762         if (retval)
1763                 com_err(argv[0], retval, 0);
1764 }
1765
1766 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1767               void *infop EXT2FS_ATTR((unused)))
1768 {
1769         unsigned long   major, minor;
1770         errcode_t       retval;
1771         int             nr;
1772         struct stat     st;
1773
1774         if (check_fs_open(argv[0]))
1775                 return;
1776         if (argc < 3 || argv[2][1]) {
1777         usage:
1778                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1779                 return;
1780         }
1781
1782         minor = major = 0;
1783         switch (argv[2][0]) {
1784                 case 'p':
1785                         st.st_mode = S_IFIFO;
1786                         nr = 3;
1787                         break;
1788                 case 'c':
1789                         st.st_mode = S_IFCHR;
1790                         nr = 5;
1791                         break;
1792                 case 'b':
1793                         st.st_mode = S_IFBLK;
1794                         nr = 5;
1795                         break;
1796                 default:
1797                         nr = 0;
1798         }
1799
1800         if (nr == 5) {
1801                 major = strtoul(argv[3], argv+3, 0);
1802                 minor = strtoul(argv[4], argv+4, 0);
1803                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1804                         nr = 0;
1805         }
1806
1807         if (argc != nr)
1808                 goto usage;
1809
1810         st.st_rdev = makedev(major, minor);
1811         retval = do_mknod_internal(current_fs, cwd, argv[1],
1812                                    st.st_mode, st.st_rdev);
1813         if (retval)
1814                 com_err(argv[0], retval, 0);
1815 }
1816
1817 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1818               void *infop EXT2FS_ATTR((unused)))
1819 {
1820         errcode_t retval;
1821
1822         if (common_args_process(argc, argv, 2, 2, "mkdir",
1823                                 "<filename>", CHECK_FS_RW))
1824                 return;
1825
1826         retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1827         if (retval)
1828                 com_err(argv[0], retval, 0);
1829
1830 }
1831
1832 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1833                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1834                                blk64_t ref_block EXT2FS_ATTR((unused)),
1835                                int ref_offset EXT2FS_ATTR((unused)),
1836                                void *private)
1837 {
1838         blk64_t block = *blocknr;
1839         blk64_t *last_cluster = (blk64_t *)private;
1840         blk64_t cluster = EXT2FS_B2C(fs, block);
1841
1842         if (cluster == *last_cluster)
1843                 return 0;
1844
1845         *last_cluster = cluster;
1846
1847         ext2fs_block_alloc_stats2(fs, block, -1);
1848         return 0;
1849 }
1850
1851 static void kill_file_by_inode(ext2_ino_t inode)
1852 {
1853         struct ext2_inode inode_buf;
1854
1855         if (debugfs_read_inode(inode, &inode_buf, 0))
1856                 return;
1857         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1858         if (debugfs_write_inode(inode, &inode_buf, 0))
1859                 return;
1860         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1861                 blk64_t last_cluster = 0;
1862                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1863                                       NULL, release_blocks_proc, &last_cluster);
1864         }
1865         printf("\n");
1866         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1867                                   LINUX_S_ISDIR(inode_buf.i_mode));
1868 }
1869
1870
1871 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1872                   void *infop EXT2FS_ATTR((unused)))
1873 {
1874         ext2_ino_t inode_num;
1875
1876         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1877                 return;
1878
1879         kill_file_by_inode(inode_num);
1880 }
1881
1882 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1883            void *infop EXT2FS_ATTR((unused)))
1884 {
1885         int retval;
1886         ext2_ino_t inode_num;
1887         struct ext2_inode inode;
1888
1889         if (common_args_process(argc, argv, 2, 2, "rm",
1890                                 "<filename>", CHECK_FS_RW))
1891                 return;
1892
1893         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1894         if (retval) {
1895                 com_err(argv[0], retval, "while trying to resolve filename");
1896                 return;
1897         }
1898
1899         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1900                 return;
1901
1902         if (LINUX_S_ISDIR(inode.i_mode)) {
1903                 com_err(argv[0], 0, "file is a directory");
1904                 return;
1905         }
1906
1907         --inode.i_links_count;
1908         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1909                 return;
1910
1911         unlink_file_by_name(argv[1]);
1912         if (inode.i_links_count == 0)
1913                 kill_file_by_inode(inode_num);
1914 }
1915
1916 struct rd_struct {
1917         ext2_ino_t      parent;
1918         int             empty;
1919 };
1920
1921 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1922                       int       entry EXT2FS_ATTR((unused)),
1923                       struct ext2_dir_entry *dirent,
1924                       int       offset EXT2FS_ATTR((unused)),
1925                       int       blocksize EXT2FS_ATTR((unused)),
1926                       char      *buf EXT2FS_ATTR((unused)),
1927                       void      *private)
1928 {
1929         struct rd_struct *rds = (struct rd_struct *) private;
1930
1931         if (dirent->inode == 0)
1932                 return 0;
1933         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1934                 return 0;
1935         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1936             (dirent->name[1] == '.')) {
1937                 rds->parent = dirent->inode;
1938                 return 0;
1939         }
1940         rds->empty = 0;
1941         return 0;
1942 }
1943
1944 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1945               void *infop EXT2FS_ATTR((unused)))
1946 {
1947         int retval;
1948         ext2_ino_t inode_num;
1949         struct ext2_inode inode;
1950         struct rd_struct rds;
1951
1952         if (common_args_process(argc, argv, 2, 2, "rmdir",
1953                                 "<filename>", CHECK_FS_RW))
1954                 return;
1955
1956         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1957         if (retval) {
1958                 com_err(argv[0], retval, "while trying to resolve filename");
1959                 return;
1960         }
1961
1962         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1963                 return;
1964
1965         if (!LINUX_S_ISDIR(inode.i_mode)) {
1966                 com_err(argv[0], 0, "file is not a directory");
1967                 return;
1968         }
1969
1970         rds.parent = 0;
1971         rds.empty = 1;
1972
1973         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1974                                     0, rmdir_proc, &rds);
1975         if (retval) {
1976                 com_err(argv[0], retval, "while iterating over directory");
1977                 return;
1978         }
1979         if (rds.empty == 0) {
1980                 com_err(argv[0], 0, "directory not empty");
1981                 return;
1982         }
1983
1984         inode.i_links_count = 0;
1985         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1986                 return;
1987
1988         unlink_file_by_name(argv[1]);
1989         kill_file_by_inode(inode_num);
1990
1991         if (rds.parent) {
1992                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1993                         return;
1994                 if (inode.i_links_count > 1)
1995                         inode.i_links_count--;
1996                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1997                         return;
1998         }
1999 }
2000 #endif /* READ_ONLY */
2001
2002 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2003                             char *argv[] EXT2FS_ATTR((unused)),
2004                             int sci_idx EXT2FS_ATTR((unused)),
2005                             void *infop EXT2FS_ATTR((unused)))
2006 {
2007         if (current_fs)
2008                 printf("Open mode: read-%s\n",
2009                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2010         printf("Filesystem in use: %s\n",
2011                current_fs ? current_fs->device_name : "--none--");
2012 }
2013
2014 #ifndef READ_ONLY
2015 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2016                     void *infop EXT2FS_ATTR((unused)))
2017 {
2018         ext2_ino_t inode;
2019         int retval;
2020
2021         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2022                 return;
2023
2024         retval = ext2fs_expand_dir(current_fs, inode);
2025         if (retval)
2026                 com_err("ext2fs_expand_dir", retval, 0);
2027         return;
2028 }
2029
2030 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2031                  void *infop EXT2FS_ATTR((unused)))
2032 {
2033         int     i;
2034
2035         if (check_fs_open(argv[0]))
2036                 return;
2037
2038         if ((argc != 1) && check_fs_read_write(argv[0]))
2039                 return;
2040         for (i=1; i < argc; i++) {
2041                 if (e2p_edit_feature(argv[i],
2042                                      &current_fs->super->s_feature_compat, 0))
2043                         com_err(argv[0], 0, "Unknown feature: %s\n",
2044                                 argv[i]);
2045                 else
2046                         ext2fs_mark_super_dirty(current_fs);
2047         }
2048         print_features(current_fs->super, stdout);
2049 }
2050 #endif /* READ_ONLY */
2051
2052 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2053              void *infop EXT2FS_ATTR((unused)))
2054 {
2055         ext2_ino_t      ino;
2056         blk64_t         blk, pblk = 0;
2057         int             c, err, flags = 0, ret_flags = 0;
2058         errcode_t       errcode;
2059
2060         if (check_fs_open(argv[0]))
2061                 return;
2062
2063         reset_getopt();
2064         while ((c = getopt (argc, argv, "a")) != EOF) {
2065                 switch (c) {
2066                 case 'a':
2067                         flags |= BMAP_ALLOC;
2068                         break;
2069                 default:
2070                         goto print_usage;
2071                 }
2072         }
2073
2074         if (argc <= optind+1) {
2075         print_usage:
2076                 com_err(0, 0,
2077                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2078                 return;
2079         }
2080
2081         ino = string_to_inode(argv[optind++]);
2082         if (!ino)
2083                 return;
2084         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2085         if (err)
2086                 return;
2087
2088         if (argc > optind+1)
2089                 goto print_usage;
2090
2091         if (argc == optind+1) {
2092                 err = strtoblk(argv[0], argv[optind++],
2093                                "physical block", &pblk);
2094                 if (err)
2095                         return;
2096                 if (flags & BMAP_ALLOC) {
2097                         com_err(0, 0, "Can't set and allocate a block");
2098                         return;
2099                 }
2100                 flags |= BMAP_SET;
2101         }
2102
2103         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2104                                &ret_flags, &pblk);
2105         if (errcode) {
2106                 com_err(argv[0], errcode,
2107                         "while mapping logical block %llu\n", blk);
2108                 return;
2109         }
2110         printf("%llu", pblk);
2111         if (ret_flags & BMAP_RET_UNINIT)
2112                 fputs(" (uninit)", stdout);
2113         fputc('\n', stdout);
2114 }
2115
2116 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2117              void *infop EXT2FS_ATTR((unused)))
2118 {
2119         ext2_ino_t      ino;
2120         unsigned long   group, block, block_nr, offset;
2121
2122         if (common_args_process(argc, argv, 2, 2, argv[0],
2123                                 "<file>", 0))
2124                 return;
2125         ino = string_to_inode(argv[1]);
2126         if (!ino)
2127                 return;
2128
2129         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2130         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2131                 EXT2_INODE_SIZE(current_fs->super);
2132         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2133         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2134                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2135                         group);
2136                 return;
2137         }
2138         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2139                 block;
2140         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2141
2142         printf("Inode %u is part of block group %lu\n"
2143                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2144                block_nr, offset);
2145
2146 }
2147
2148 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2149               void *infop EXT2FS_ATTR((unused)))
2150 {
2151         struct ext2_inode_large *inode;
2152         ext2_ino_t      ino;
2153         unsigned char   *buf;
2154         errcode_t       err;
2155         unsigned int    isize, size, offset = 0;
2156         int             c, mode = 0;
2157
2158         reset_getopt();
2159         while ((c = getopt (argc, argv, "bex")) != EOF) {
2160                 if (mode || c == '?') {
2161                         com_err(argv[0], 0,
2162                                 "Usage: inode_dump [-b]|[-e] <file>");
2163                         return;
2164                 }
2165                 mode = c;
2166         }
2167         if (optind != argc-1)
2168                 return;
2169
2170         if (check_fs_open(argv[0]))
2171                 return;
2172
2173         ino = string_to_inode(argv[optind]);
2174         if (!ino)
2175                 return;
2176
2177         isize = EXT2_INODE_SIZE(current_fs->super);
2178         err = ext2fs_get_mem(isize, &buf);
2179         if (err) {
2180                 com_err(argv[0], err, "while allocating memory");
2181                 return;
2182         }
2183
2184         err = ext2fs_read_inode_full(current_fs, ino,
2185                                      (struct ext2_inode *)buf, isize);
2186         if (err) {
2187                 com_err(argv[0], err, "while reading inode %u", ino);
2188                 goto err;
2189         }
2190
2191         inode = (struct ext2_inode_large *) buf;
2192         size = isize;
2193         switch (mode) {
2194         case 'b':
2195                 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2196                 size = sizeof(inode->i_block);
2197                 break;
2198         case 'x':
2199         case 'e':
2200                 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2201                         com_err(argv[0], 0, "No extra space in inode");
2202                         goto err;
2203                 }
2204                 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2205                 if (offset > size)
2206                         goto err;
2207                 size -= offset;
2208                 break;
2209         }
2210         if (mode == 'x')
2211                 raw_inode_xattr_dump(stdout, buf + offset, size);
2212         else
2213                 do_byte_hexdump(stdout, buf + offset, size);
2214 err:
2215         ext2fs_free_mem(&buf);
2216 }
2217
2218 #ifndef READ_ONLY
2219 void do_set_current_time(int argc, char *argv[],
2220                          int sci_idx EXT2FS_ATTR((unused)),
2221                          void *infop EXT2FS_ATTR((unused)))
2222 {
2223         __s64 now;
2224
2225         if (common_args_process(argc, argv, 2, 2, argv[0],
2226                                 "<time>", 0))
2227                 return;
2228
2229         now = string_to_time(argv[1]);
2230         if (now == -1) {
2231                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2232                         argv[1]);
2233                 return;
2234
2235         } else {
2236                 printf("Setting current time to %s\n", time_to_string(now));
2237                 current_fs->now = now;
2238         }
2239 }
2240 #endif /* READ_ONLY */
2241
2242 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2243 {
2244         int compat, bit, ret;
2245         unsigned int feature_mask;
2246
2247         if (name) {
2248                 if (feature_type == E2P_FS_FEATURE)
2249                         ret = e2p_string2feature(name, &compat, &feature_mask);
2250                 else
2251                         ret = e2p_jrnl_string2feature(name, &compat,
2252                                                       &feature_mask);
2253                 if (ret)
2254                         return ret;
2255
2256                 if (!(supp[compat] & feature_mask))
2257                         return 1;
2258         } else {
2259                 for (compat = 0; compat < 3; compat++) {
2260                         for (bit = 0, feature_mask = 1; bit < 32;
2261                              bit++, feature_mask <<= 1) {
2262                                 if (supp[compat] & feature_mask) {
2263                                         if (feature_type == E2P_FS_FEATURE)
2264                                                 fprintf(stdout, " %s",
2265                                                 e2p_feature2string(compat,
2266                                                 feature_mask));
2267                                         else
2268                                                 fprintf(stdout, " %s",
2269                                                 e2p_jrnl_feature2string(compat,
2270                                                 feature_mask));
2271                                 }
2272                         }
2273                 }
2274                 fprintf(stdout, "\n");
2275         }
2276
2277         return 0;
2278 }
2279
2280 void do_supported_features(int argc, char *argv[],
2281                            int sci_idx EXT2FS_ATTR((unused)),
2282                            void *infop EXT2FS_ATTR((unused)))
2283 {
2284         int     ret;
2285         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2286                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2287                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2288         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2289                                  JFS_KNOWN_INCOMPAT_FEATURES,
2290                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2291
2292         if (argc > 1) {
2293                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2294                 if (ret) {
2295                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2296                                                 argv[1]);
2297                 }
2298                 if (ret)
2299                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2300                 else
2301                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2302         } else {
2303                 fprintf(stdout, "Supported features:");
2304                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2305                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2306         }
2307 }
2308
2309 #ifndef READ_ONLY
2310 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2311               void *infop EXT2FS_ATTR((unused)))
2312 {
2313         ext2_ino_t      ino;
2314         blk64_t         start, end;
2315         int             err;
2316         errcode_t       errcode;
2317
2318         if (common_args_process(argc, argv, 3, 4, argv[0],
2319                                 "<file> start_blk [end_blk]",
2320                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2321                 return;
2322
2323         ino = string_to_inode(argv[1]);
2324         if (!ino)
2325                 return;
2326         err = strtoblk(argv[0], argv[2], "logical block", &start);
2327         if (err)
2328                 return;
2329         if (argc == 4) {
2330                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2331                 if (err)
2332                         return;
2333         } else
2334                 end = ~0;
2335
2336         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2337
2338         if (errcode) {
2339                 com_err(argv[0], errcode,
2340                         "while truncating inode %u from %llu to %llu\n", ino,
2341                         (unsigned long long) start, (unsigned long long) end);
2342                 return;
2343         }
2344 }
2345
2346 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2347                   void *infop EXT2FS_ATTR((unused)))
2348 {
2349         ext2_ino_t      ino;
2350         blk64_t         start, end;
2351         int             err;
2352         errcode_t       errcode;
2353
2354         if (common_args_process(argc, argv, 3, 4, argv[0],
2355                                 "<file> start_blk [end_blk]",
2356                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2357                 return;
2358
2359         ino = string_to_inode(argv[1]);
2360         if (!ino)
2361                 return;
2362         err = strtoblk(argv[0], argv[2], "logical block", &start);
2363         if (err)
2364                 return;
2365         if (argc == 4) {
2366                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2367                 if (err)
2368                         return;
2369         } else
2370                 end = ~0;
2371
2372         errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2373                                    ino, NULL, ~0ULL, start, end - start + 1);
2374
2375         if (errcode) {
2376                 com_err(argv[0], errcode,
2377                         "while fallocating inode %u from %llu to %llu\n", ino,
2378                         (unsigned long long) start, (unsigned long long) end);
2379                 return;
2380         }
2381 }
2382 #endif /* READ_ONLY */
2383
2384 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2385                 void *infop EXT2FS_ATTR((unused)))
2386 {
2387         errcode_t       retval;
2388
2389         if (common_args_process(argc, argv, 3, 3, "symlink",
2390                                 "<filename> <target>", CHECK_FS_RW))
2391                 return;
2392
2393         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2394         if (retval)
2395                 com_err(argv[0], retval, 0);
2396
2397 }
2398
2399 #if CONFIG_MMP
2400 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2401                  int sci_idx EXT2FS_ATTR((unused)),
2402                  void *infop EXT2FS_ATTR((unused)))
2403 {
2404         struct mmp_struct *mmp_s;
2405         unsigned long long mmp_block;
2406         time_t t;
2407         errcode_t retval = 0;
2408
2409         if (check_fs_open(argv[0]))
2410                 return;
2411
2412         if (argc > 1) {
2413                 char *end = NULL;
2414                 mmp_block = strtoull(argv[1], &end, 0);
2415                 if (end == argv[0] || mmp_block == 0) {
2416                         fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2417                                 argv[0], argv[1]);
2418                         return;
2419                 }
2420         } else {
2421                 mmp_block = current_fs->super->s_mmp_block;
2422         }
2423
2424         if (mmp_block == 0) {
2425                 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2426                         argv[0]);
2427                 return;
2428         }
2429
2430         if (current_fs->mmp_buf == NULL) {
2431                 retval = ext2fs_get_mem(current_fs->blocksize,
2432                                         &current_fs->mmp_buf);
2433                 if (retval) {
2434                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2435                         return;
2436                 }
2437         }
2438
2439         mmp_s = current_fs->mmp_buf;
2440
2441         retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2442         if (retval) {
2443                 com_err(argv[0], retval, "reading MMP block %llu.\n",
2444                         mmp_block);
2445                 return;
2446         }
2447
2448         t = mmp_s->mmp_time;
2449         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2450         fprintf(stdout, "update_interval: %d\n",
2451                 current_fs->super->s_mmp_update_interval);
2452         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2453         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2454         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2455         fprintf(stdout, "node_name: %.*s\n",
2456                 EXT2_LEN_STR(mmp_s->mmp_nodename));
2457         fprintf(stdout, "device_name: %.*s\n",
2458                 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2459         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2460         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2461 }
2462 #else
2463 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2464                  char *argv[] EXT2FS_ATTR((unused)),
2465                  int sci_idx EXT2FS_ATTR((unused)),
2466                  void *infop EXT2FS_ATTR((unused)))
2467 {
2468         fprintf(stdout, "MMP is unsupported, please recompile with "
2469                         "--enable-mmp\n");
2470 }
2471 #endif
2472
2473 static int source_file(const char *cmd_file, int ss_idx)
2474 {
2475         FILE            *f;
2476         char            buf[BUFSIZ];
2477         char            *cp;
2478         int             exit_status = 0;
2479         int             retval;
2480
2481         if (strcmp(cmd_file, "-") == 0)
2482                 f = stdin;
2483         else {
2484                 f = fopen(cmd_file, "r");
2485                 if (!f) {
2486                         perror(cmd_file);
2487                         exit(1);
2488                 }
2489         }
2490         fflush(stdout);
2491         fflush(stderr);
2492         setbuf(stdout, NULL);
2493         setbuf(stderr, NULL);
2494         while (!feof(f)) {
2495                 if (fgets(buf, sizeof(buf), f) == NULL)
2496                         break;
2497                 if (buf[0] == '#') {
2498                         printf("%s", buf);
2499                         continue;
2500                 }
2501                 cp = strchr(buf, '\n');
2502                 if (cp)
2503                         *cp = 0;
2504                 cp = strchr(buf, '\r');
2505                 if (cp)
2506                         *cp = 0;
2507                 printf("debugfs: %s\n", buf);
2508                 retval = ss_execute_line(ss_idx, buf);
2509                 if (retval) {
2510                         ss_perror(ss_idx, retval, buf);
2511                         exit_status++;
2512                 }
2513         }
2514         if (f != stdin)
2515                 fclose(f);
2516         return exit_status;
2517 }
2518
2519 int main(int argc, char **argv)
2520 {
2521         int             retval;
2522         const char      *usage =
2523                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2524                 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2525 #ifndef READ_ONLY
2526                 "[-w] [-z undo_file] "
2527 #endif
2528                 "[-c]] [device]";
2529         int             c;
2530         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2531         char            *request = 0;
2532         int             exit_status = 0;
2533         char            *cmd_file = 0;
2534         blk64_t         superblock = 0;
2535         blk64_t         blocksize = 0;
2536         int             catastrophic = 0;
2537         char            *data_filename = 0;
2538 #ifdef READ_ONLY
2539         const char      *opt_string = "nicR:f:b:s:Vd:D";
2540 #else
2541         const char      *opt_string = "niwcR:f:b:s:Vd:Dz:";
2542         char            *undo_file = NULL;
2543 #endif
2544 #ifdef CONFIG_JBD_DEBUG
2545         char            *jbd_debug;
2546 #endif
2547
2548         if (debug_prog_name == 0)
2549 #ifdef READ_ONLY
2550                 debug_prog_name = "rdebugfs";
2551 #else
2552                 debug_prog_name = "debugfs";
2553 #endif
2554         add_error_table(&et_ext2_error_table);
2555         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2556                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2557
2558 #ifdef CONFIG_JBD_DEBUG
2559         jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2560         if (jbd_debug) {
2561                 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2562
2563                 if (res != 1) {
2564                         fprintf(stderr,
2565                                 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2566                                 jbd_debug);
2567                         exit(1);
2568                 }
2569         }
2570 #endif
2571         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2572                 switch (c) {
2573                 case 'R':
2574                         request = optarg;
2575                         break;
2576                 case 'f':
2577                         cmd_file = optarg;
2578                         break;
2579                 case 'd':
2580                         data_filename = optarg;
2581                         break;
2582                 case 'i':
2583                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2584                         break;
2585                 case 'n':
2586                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2587                         break;
2588 #ifndef READ_ONLY
2589                 case 'w':
2590                         open_flags |= EXT2_FLAG_RW;
2591                         break;
2592 #endif
2593                 case 'D':
2594                         open_flags |= EXT2_FLAG_DIRECT_IO;
2595                         break;
2596                 case 'b':
2597                         blocksize = parse_ulong(optarg, argv[0],
2598                                                 "block size", 0);
2599                         break;
2600                 case 's':
2601                         retval = strtoblk(argv[0], optarg,
2602                                           "superblock block number",
2603                                           &superblock);
2604                         if (retval)
2605                                 return 1;
2606                         break;
2607                 case 'c':
2608                         catastrophic = 1;
2609                         break;
2610                 case 'V':
2611                         /* Print version number and exit */
2612                         fprintf(stderr, "\tUsing %s\n",
2613                                 error_message(EXT2_ET_BASE));
2614                         exit(0);
2615                 case 'z':
2616                         undo_file = optarg;
2617                         break;
2618                 default:
2619                         com_err(argv[0], 0, usage, debug_prog_name);
2620                         return 1;
2621                 }
2622         }
2623         if (optind < argc)
2624                 open_filesystem(argv[optind], open_flags,
2625                                 superblock, blocksize, catastrophic,
2626                                 data_filename, undo_file);
2627
2628         ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2629                                           &debug_cmds, &retval);
2630         if (retval) {
2631                 ss_perror(ss_sci_idx, retval, "creating invocation");
2632                 exit(1);
2633         }
2634         ss_get_readline(ss_sci_idx);
2635
2636         (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2637         if (retval) {
2638                 ss_perror(ss_sci_idx, retval, "adding standard requests");
2639                 exit (1);
2640         }
2641         if (extra_cmds)
2642                 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2643         if (retval) {
2644                 ss_perror(ss_sci_idx, retval, "adding extra requests");
2645                 exit (1);
2646         }
2647         if (request) {
2648                 retval = 0;
2649                 retval = ss_execute_line(ss_sci_idx, request);
2650                 if (retval) {
2651                         ss_perror(ss_sci_idx, retval, request);
2652                         exit_status++;
2653                 }
2654         } else if (cmd_file) {
2655                 exit_status = source_file(cmd_file, ss_sci_idx);
2656         } else {
2657                 ss_listen(ss_sci_idx);
2658         }
2659
2660         ss_delete_invocation(ss_sci_idx);
2661
2662         if (current_fs)
2663                 close_filesystem();
2664
2665         remove_error_table(&et_ext2_error_table);
2666         return exit_status;
2667 }