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 <stdio.h>
  12 #include <unistd.h>
  13 #include <stdlib.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <time.h>
  17 #ifdef HAVE_GETOPT_H
  18 #include <getopt.h>
  19 #else
  20 extern int optind;
  21 extern char *optarg;
  22 #endif
  23 #ifdef HAVE_ERRNO_H
  24 #include <errno.h>
  25 #endif
  26 #include <fcntl.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29
  30 #include "et/com_err.h"
  31 #include "ss/ss.h"
  32 #include "debugfs.h"
  33 #include "uuid/uuid.h"
  34 #include "e2p/e2p.h"
  35
  36 #include <ext2fs/ext2_ext_attr.h>
  37
  38 #include "../version.h"
  39 #include "jfs_user.h"
  40
  41 extern ss_request_table debug_cmds;
  42 ss_request_table *extra_cmds;
  43 const char *debug_prog_name;
  44
  45 ext2_filsys     current_fs = NULL;
  46 ext2_ino_t      root, cwd;
  47
  48 static void open_filesystem(char *device, int open_flags, blk_t superblock,
  49                             blk_t blocksize, int catastrophic,
  50                             char *data_filename)
  51 {
  52         int     retval;
  53         io_channel data_io = 0;
  54
  55         if (superblock != 0 && blocksize == 0) {
  56                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
  57                 current_fs = NULL;
  58                 return;
  59         }
  60
  61         if (data_filename) {
  62                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
  63                         com_err(device, 0,
  64                                 "The -d option is only valid when reading an e2image file");
  65                         current_fs = NULL;
  66                         return;
  67                 }
  68                 retval = unix_io_manager->open(data_filename, 0, &data_io);
  69                 if (retval) {
  70                         com_err(data_filename, 0, "while opening data source");
  71                         current_fs = NULL;
  72                         return;
  73                 }
  74         }
  75
  76         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
  77                 com_err(device, 0,
  78                         "opening read-only because of catastrophic mode");
  79                 open_flags &= ~EXT2_FLAG_RW;
  80         }
  81
  82         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  83                              unix_io_manager, &current_fs);
  84         if (retval) {
  85                 com_err(device, retval, "while opening filesystem");
  86                 current_fs = NULL;
  87                 return;
  88         }
  89
  90         if (catastrophic)
  91                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  92         else {
  93                 retval = ext2fs_read_inode_bitmap(current_fs);
  94                 if (retval) {
  95                         com_err(device, retval, "while reading inode bitmap");
  96                         goto errout;
  97                 }
  98                 retval = ext2fs_read_block_bitmap(current_fs);
  99                 if (retval) {
 100                         com_err(device, retval, "while reading block bitmap");
 101                         goto errout;
 102                 }
 103         }
 104
 105         if (data_io) {
 106                 retval = ext2fs_set_data_io(current_fs, data_io);
 107                 if (retval) {
 108                         com_err(device, retval,
 109                                 "while setting data source");
 110                         goto errout;
 111                 }
 112         }
 113
 114         root = cwd = EXT2_ROOT_INO;
 115         return;
 116
 117 errout:
 118         retval = ext2fs_close(current_fs);
 119         if (retval)
 120                 com_err(device, retval, "while trying to close filesystem");
 121         current_fs = NULL;
 122 }
 123
 124 void do_open_filesys(int argc, char **argv)
 125 {
 126         int     c, err;
 127         int     catastrophic = 0;
 128         blk_t   superblock = 0;
 129         blk_t   blocksize = 0;
 130         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
 131         char    *data_filename = 0;
 132
 133         reset_getopt();
 134         while ((c = getopt (argc, argv, "iwfecb:s:d:")) != EOF) {
 135                 switch (c) {
 136                 case 'i':
 137                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 138                         break;
 139                 case 'w':
 140                         open_flags |= EXT2_FLAG_RW;
 141                         break;
 142                 case 'f':
 143                         open_flags |= EXT2_FLAG_FORCE;
 144                         break;
 145                 case 'e':
 146                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 147                         break;
 148                 case 'c':
 149                         catastrophic = 1;
 150                         break;
 151                 case 'd':
 152                         data_filename = optarg;
 153                         break;
 154                 case 'b':
 155                         blocksize = parse_ulong(optarg, argv[0],
 156                                                 "block size", &err);
 157                         if (err)
 158                                 return;
 159                         break;
 160                 case 's':
 161                         superblock = parse_ulong(optarg, argv[0],
 162                                                  "superblock number", &err);
 163                         if (err)
 164                                 return;
 165                         break;
 166                 default:
 167                         goto print_usage;
 168                 }
 169         }
 170         if (optind != argc-1) {
 171                 goto print_usage;
 172         }
 173         if (check_fs_not_open(argv[0]))
 174                 return;
 175         open_filesystem(argv[optind], open_flags,
 176                         superblock, blocksize, catastrophic,
 177                         data_filename);
 178         return;
 179
 180 print_usage:
 181         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 182                 "[-c] [-w] <device>\n", argv[0]);
 183 }
 184
 185 void do_lcd(int argc, char **argv)
 186 {
 187         if (argc != 2) {
 188                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 189                 return;
 190         }
 191
 192         if (chdir(argv[1]) == -1) {
 193                 com_err(argv[0], errno,
 194                         "while trying to change native directory to %s",
 195                         argv[1]);
 196                 return;
 197         }
 198 }
 199
 200 static void close_filesystem(NOARGS)
 201 {
 202         int     retval;
 203
 204         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 205                 retval = ext2fs_write_inode_bitmap(current_fs);
 206                 if (retval)
 207                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 208         }
 209         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 210                 retval = ext2fs_write_block_bitmap(current_fs);
 211                 if (retval)
 212                         com_err("ext2fs_write_block_bitmap", retval, 0);
 213         }
 214         retval = ext2fs_close(current_fs);
 215         if (retval)
 216                 com_err("ext2fs_close", retval, 0);
 217         current_fs = NULL;
 218         return;
 219 }
 220
 221 void do_close_filesys(int argc, char **argv)
 222 {
 223         int     c;
 224
 225         if (check_fs_open(argv[0]))
 226                 return;
 227
 228         reset_getopt();
 229         while ((c = getopt (argc, argv, "a")) != EOF) {
 230                 switch (c) {
 231                 case 'a':
 232                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 233                         break;
 234                 default:
 235                         goto print_usage;
 236                 }
 237         }
 238
 239         if (argc > optind) {
 240         print_usage:
 241                 com_err(0, 0, "Usage: close_filesys [-a]");
 242                 return;
 243         }
 244
 245         close_filesystem();
 246 }
 247
 248 void do_init_filesys(int argc, char **argv)
 249 {
 250         struct ext2_super_block param;
 251         errcode_t       retval;
 252         int             err;
 253
 254         if (common_args_process(argc, argv, 3, 3, "initialize",
 255                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 256                 return;
 257
 258         memset(&param, 0, sizeof(struct ext2_super_block));
 259         param.s_blocks_count = parse_ulong(argv[2], argv[0],
 260                                            "blocks count", &err);
 261         if (err)
 262                 return;
 263         retval = ext2fs_initialize(argv[1], 0, &param,
 264                                    unix_io_manager, &current_fs);
 265         if (retval) {
 266                 com_err(argv[1], retval, "while initializing filesystem");
 267                 current_fs = NULL;
 268                 return;
 269         }
 270         root = cwd = EXT2_ROOT_INO;
 271         return;
 272 }
 273
 274 static void print_features(struct ext2_super_block * s, FILE *f)
 275 {
 276         int     i, j, printed=0;
 277         __u32   *mask = &s->s_feature_compat, m;
 278
 279         fputs("Filesystem features:", f);
 280         for (i=0; i <3; i++,mask++) {
 281                 for (j=0,m=1; j < 32; j++, m<<=1) {
 282                         if (*mask & m) {
 283                                 fprintf(f, " %s", e2p_feature2string(i, m));
 284                                 printed++;
 285                         }
 286                 }
 287         }
 288         if (printed == 0)
 289                 fputs("(none)", f);
 290         fputs("\n", f);
 291 }
 292
 293 static void print_bg_opts(struct ext2_group_desc *gdp, int mask,
 294                           const char *str, int *first, FILE *f)
 295 {
 296         if (gdp->bg_flags & mask) {
 297                 if (*first) {
 298                         fputs("           [", f);
 299                         *first = 0;
 300                 } else
 301                         fputs(", ", f);
 302                 fputs(str, f);
 303         }
 304 }
 305
 306 void do_show_super_stats(int argc, char *argv[])
 307 {
 308         dgrp_t  i;
 309         FILE    *out;
 310         struct ext2_group_desc *gdp;
 311         int     c, header_only = 0;
 312         int     numdirs = 0, first, gdt_csum;
 313
 314         reset_getopt();
 315         while ((c = getopt (argc, argv, "h")) != EOF) {
 316                 switch (c) {
 317                 case 'h':
 318                         header_only++;
 319                         break;
 320                 default:
 321                         goto print_usage;
 322                 }
 323         }
 324         if (optind != argc) {
 325                 goto print_usage;
 326         }
 327         if (check_fs_open(argv[0]))
 328                 return;
 329         out = open_pager();
 330
 331         list_super2(current_fs->super, out);
 332         for (i=0; i < current_fs->group_desc_count; i++)
 333                 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
 334         fprintf(out, "Directories:              %d\n", numdirs);
 335
 336         if (header_only) {
 337                 close_pager(out);
 338                 return;
 339         }
 340
 341         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 342                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 343         gdp = &current_fs->group_desc[0];
 344         for (i = 0; i < current_fs->group_desc_count; i++, gdp++) {
 345                 fprintf(out, " Group %2d: block bitmap at %u, "
 346                         "inode bitmap at %u, "
 347                         "inode table at %u\n"
 348                         "           %d free %s, "
 349                         "%d free %s, "
 350                         "%d used %s%s",
 351                         i, gdp->bg_block_bitmap,
 352                         gdp->bg_inode_bitmap, gdp->bg_inode_table,
 353                         gdp->bg_free_blocks_count,
 354                         gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
 355                         gdp->bg_free_inodes_count,
 356                         gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
 357                         gdp->bg_used_dirs_count,
 358                         gdp->bg_used_dirs_count != 1 ? "directories"
 359                                 : "directory", gdt_csum ? ", " : "\n");
 360                 if (gdt_csum)
 361                         fprintf(out, "%d unused %s\n",
 362                                 gdp->bg_itable_unused,
 363                                 gdp->bg_itable_unused != 1 ? "inodes":"inode");
 364                 first = 1;
 365                 print_bg_opts(gdp, EXT2_BG_INODE_UNINIT, "Inode not init",
 366                               &first, out);
 367                 print_bg_opts(gdp, EXT2_BG_BLOCK_UNINIT, "Block not init",
 368                               &first, out);
 369                 if (gdt_csum) {
 370                         fprintf(out, "%sChecksum 0x%04x",
 371                                 first ? "           [":", ", gdp->bg_checksum);
 372                         first = 0;
 373                 }
 374                 if (!first)
 375                         fputs("]\n", out);
 376         }
 377         close_pager(out);
 378         return;
 379 print_usage:
 380         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 381 }
 382
 383 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 384                       char **argv EXT2FS_ATTR((unused)))
 385 {
 386         if (check_fs_open(argv[0]))
 387                 return;
 388         if (check_fs_read_write(argv[0]))
 389                 return;
 390
 391         if (argv[1] && !strcmp(argv[1], "-clean"))
 392                 current_fs->super->s_state |= EXT2_VALID_FS;
 393         else
 394                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 395         ext2fs_mark_super_dirty(current_fs);
 396 }
 397
 398 struct list_blocks_struct {
 399         FILE            *f;
 400         e2_blkcnt_t     total;
 401         blk_t           first_block, last_block;
 402         e2_blkcnt_t     first_bcnt, last_bcnt;
 403         e2_blkcnt_t     first;
 404 };
 405
 406 static void finish_range(struct list_blocks_struct *lb)
 407 {
 408         if (lb->first_block == 0)
 409                 return;
 410         if (lb->first)
 411                 lb->first = 0;
 412         else
 413                 fprintf(lb->f, ", ");
 414         if (lb->first_block == lb->last_block)
 415                 fprintf(lb->f, "(%lld):%u",
 416                         (long long)lb->first_bcnt, lb->first_block);
 417         else
 418                 fprintf(lb->f, "(%lld-%lld):%u-%u",
 419                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 420                         lb->first_block, lb->last_block);
 421         lb->first_block = 0;
 422 }
 423
 424 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 425                             blk_t *blocknr, e2_blkcnt_t blockcnt,
 426                             blk_t ref_block EXT2FS_ATTR((unused)),
 427                             int ref_offset EXT2FS_ATTR((unused)),
 428                             void *private)
 429 {
 430         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 431
 432         lb->total++;
 433         if (blockcnt >= 0) {
 434                 /*
 435                  * See if we can add on to the existing range (if it exists)
 436                  */
 437                 if (lb->first_block &&
 438                     (lb->last_block+1 == *blocknr) &&
 439                     (lb->last_bcnt+1 == blockcnt)) {
 440                         lb->last_block = *blocknr;
 441                         lb->last_bcnt = blockcnt;
 442                         return 0;
 443                 }
 444                 /*
 445                  * Start a new range.
 446                  */
 447                 finish_range(lb);
 448                 lb->first_block = lb->last_block = *blocknr;
 449                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 450                 return 0;
 451         }
 452         /*
 453          * Not a normal block.  Always force a new range.
 454          */
 455         finish_range(lb);
 456         if (lb->first)
 457                 lb->first = 0;
 458         else
 459                 fprintf(lb->f, ", ");
 460         if (blockcnt == -1)
 461                 fprintf(lb->f, "(IND):%u", *blocknr);
 462         else if (blockcnt == -2)
 463                 fprintf(lb->f, "(DIND):%u", *blocknr);
 464         else if (blockcnt == -3)
 465                 fprintf(lb->f, "(TIND):%u", *blocknr);
 466         return 0;
 467 }
 468
 469 static void dump_xattr_string(FILE *out, const char *str, int len)
 470 {
 471         int printable = 0;
 472         int i;
 473
 474         /* check: is string "printable enough?" */
 475         for (i = 0; i < len; i++)
 476                 if (isprint(str[i]))
 477                         printable++;
 478
 479         if (printable <= len*7/8)
 480                 printable = 0;
 481
 482         for (i = 0; i < len; i++)
 483                 if (printable)
 484                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 485                                 (unsigned char)str[i]);
 486                 else
 487                         fprintf(out, "%02x ", (unsigned char)str[i]);
 488 }
 489
 490 static void internal_dump_inode_extra(FILE *out,
 491                                       const char *prefix EXT2FS_ATTR((unused)),
 492                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 493                                       struct ext2_inode_large *inode)
 494 {
 495         struct ext2_ext_attr_entry *entry;
 496         __u32 *magic;
 497         char *start, *end;
 498         unsigned int storage_size;
 499
 500         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 501         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 502                         EXT2_GOOD_OLD_INODE_SIZE) {
 503                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 504                                 inode->i_extra_isize);
 505                 return;
 506         }
 507         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 508                         EXT2_GOOD_OLD_INODE_SIZE -
 509                         inode->i_extra_isize;
 510         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 511                         inode->i_extra_isize);
 512         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 513                 fprintf(out, "Extended attributes stored in inode body: \n");
 514                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 515                 start = (char *) magic + sizeof(__u32);
 516                 entry = (struct ext2_ext_attr_entry *) start;
 517                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 518                         struct ext2_ext_attr_entry *next =
 519                                 EXT2_EXT_ATTR_NEXT(entry);
 520                         if (entry->e_value_size > storage_size ||
 521                                         (char *) next >= end) {
 522                                 fprintf(out, "invalid EA entry in inode\n");
 523                                 return;
 524                         }
 525                         fprintf(out, "  ");
 526                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 527                                           entry->e_name_len);
 528                         fprintf(out, " = \"");
 529                         dump_xattr_string(out, start + entry->e_value_offs,
 530                                                 entry->e_value_size);
 531                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 532                         entry = next;
 533                 }
 534         }
 535 }
 536
 537 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 538 {
 539         struct list_blocks_struct lb;
 540
 541         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 542         lb.total = 0;
 543         lb.first_block = 0;
 544         lb.f = f;
 545         lb.first = 1;
 546         ext2fs_block_iterate2(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 547                              list_blocks_proc, (void *)&lb);
 548         finish_range(&lb);
 549         if (lb.total)
 550                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 551         fprintf(f,"\n");
 552 }
 553
 554
 555 void internal_dump_inode(FILE *out, const char *prefix,
 556                          ext2_ino_t inode_num, struct ext2_inode *inode,
 557                          int do_dump_blocks)
 558 {
 559         const char *i_type;
 560         char frag, fsize;
 561         int os = current_fs->super->s_creator_os;
 562         struct ext2_inode_large *large_inode;
 563         int is_large_inode = 0;
 564
 565         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 566                 is_large_inode = 1;
 567         large_inode = (struct ext2_inode_large *) inode;
 568
 569         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 570         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 571         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 572         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 573         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 574         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 575         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 576         else i_type = "bad type";
 577         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 578         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 579                 prefix, inode->i_mode & 0777, inode->i_flags);
 580         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 581                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 582                         prefix, inode->i_generation, large_inode->i_version_hi,
 583                         inode->osd1.linux1.l_i_version);
 584         } else {
 585                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 586                         inode->i_generation, inode->osd1.linux1.l_i_version);
 587         }
 588         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 589                 prefix, inode_uid(*inode), inode_gid(*inode));
 590         if (LINUX_S_ISREG(inode->i_mode)) {
 591                 unsigned long long i_size = (inode->i_size |
 592                                     ((unsigned long long)inode->i_size_high << 32));
 593
 594                 fprintf(out, "%llu\n", i_size);
 595         } else
 596                 fprintf(out, "%d\n", inode->i_size);
 597         if (os == EXT2_OS_HURD)
 598                 fprintf(out,
 599                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 600                         prefix,
 601                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 602                         inode->osd1.hurd1.h_i_translator);
 603         else
 604                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 605                         prefix,
 606                         inode->i_file_acl | ((long long)
 607                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 608                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 609         if (os == EXT2_OS_LINUX)
 610                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 611                         prefix, inode->i_links_count,
 612                         (((unsigned long long)
 613                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 614                         inode->i_blocks);
 615         else
 616                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 617                         prefix, inode->i_links_count, inode->i_blocks);
 618         switch (os) {
 619             case EXT2_OS_HURD:
 620                 frag = inode->osd2.hurd2.h_i_frag;
 621                 fsize = inode->osd2.hurd2.h_i_fsize;
 622                 break;
 623             default:
 624                 frag = fsize = 0;
 625         }
 626         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 627                 prefix, inode->i_faddr, frag, fsize);
 628         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 629                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 630                         inode->i_ctime, large_inode->i_ctime_extra,
 631                         time_to_string(inode->i_ctime));
 632                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 633                         inode->i_atime, large_inode->i_atime_extra,
 634                         time_to_string(inode->i_atime));
 635                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 636                         inode->i_mtime, large_inode->i_mtime_extra,
 637                         time_to_string(inode->i_mtime));
 638                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 639                         large_inode->i_crtime, large_inode->i_crtime_extra,
 640                         time_to_string(large_inode->i_crtime));
 641         } else {
 642                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 643                         time_to_string(inode->i_ctime));
 644                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 645                         time_to_string(inode->i_atime));
 646                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 647                         time_to_string(inode->i_mtime));
 648         }
 649         if (inode->i_dtime)
 650           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 651                   time_to_string(inode->i_dtime));
 652         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 653                 internal_dump_inode_extra(out, prefix, inode_num,
 654                                           (struct ext2_inode_large *) inode);
 655         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 656                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 657                         (int) inode->i_size, (char *)inode->i_block);
 658         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 659                 int major, minor;
 660                 const char *devnote;
 661
 662                 if (inode->i_block[0]) {
 663                         major = (inode->i_block[0] >> 8) & 255;
 664                         minor = inode->i_block[0] & 255;
 665                         devnote = "";
 666                 } else {
 667                         major = (inode->i_block[1] & 0xfff00) >> 8;
 668                         minor = ((inode->i_block[1] & 0xff) |
 669                                  ((inode->i_block[1] >> 12) & 0xfff00));
 670                         devnote = "(New-style) ";
 671                 }
 672                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 673                         devnote, major, minor, major, minor);
 674         }
 675         else if (do_dump_blocks)
 676                 dump_blocks(out, prefix, inode_num);
 677 }
 678
 679 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 680 {
 681         FILE    *out;
 682
 683         out = open_pager();
 684         internal_dump_inode(out, "", inode_num, inode, 1);
 685         close_pager(out);
 686 }
 687
 688 void do_stat(int argc, char *argv[])
 689 {
 690         ext2_ino_t      inode;
 691         struct ext2_inode * inode_buf;
 692
 693         if (check_fs_open(argv[0]))
 694                 return;
 695
 696         inode_buf = (struct ext2_inode *)
 697                         malloc(EXT2_INODE_SIZE(current_fs->super));
 698         if (!inode_buf) {
 699                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 700                 return;
 701         }
 702
 703         if (common_inode_args_process(argc, argv, &inode, 0)) {
 704                 free(inode_buf);
 705                 return;
 706         }
 707
 708         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 709                                         EXT2_INODE_SIZE(current_fs->super))) {
 710                 free(inode_buf);
 711                 return;
 712         }
 713
 714         dump_inode(inode, inode_buf);
 715         free(inode_buf);
 716         return;
 717 }
 718
 719 void do_chroot(int argc, char *argv[])
 720 {
 721         ext2_ino_t inode;
 722         int retval;
 723
 724         if (common_inode_args_process(argc, argv, &inode, 0))
 725                 return;
 726
 727         retval = ext2fs_check_directory(current_fs, inode);
 728         if (retval)  {
 729                 com_err(argv[1], retval, 0);
 730                 return;
 731         }
 732         root = inode;
 733 }
 734
 735 void do_clri(int argc, char *argv[])
 736 {
 737         ext2_ino_t inode;
 738         struct ext2_inode inode_buf;
 739
 740         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 741                 return;
 742
 743         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 744                 return;
 745         memset(&inode_buf, 0, sizeof(inode_buf));
 746         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 747                 return;
 748 }
 749
 750 void do_freei(int argc, char *argv[])
 751 {
 752         ext2_ino_t inode;
 753
 754         if (common_inode_args_process(argc, argv, &inode,
 755                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 756                 return;
 757
 758         if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 759                 com_err(argv[0], 0, "Warning: inode already clear");
 760         ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
 761         ext2fs_mark_ib_dirty(current_fs);
 762 }
 763
 764 void do_seti(int argc, char *argv[])
 765 {
 766         ext2_ino_t inode;
 767
 768         if (common_inode_args_process(argc, argv, &inode,
 769                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 770                 return;
 771
 772         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 773                 com_err(argv[0], 0, "Warning: inode already set");
 774         ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
 775         ext2fs_mark_ib_dirty(current_fs);
 776 }
 777
 778 void do_testi(int argc, char *argv[])
 779 {
 780         ext2_ino_t inode;
 781
 782         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
 783                 return;
 784
 785         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 786                 printf("Inode %u is marked in use\n", inode);
 787         else
 788                 printf("Inode %u is not in use\n", inode);
 789 }
 790
 791 void do_freeb(int argc, char *argv[])
 792 {
 793         blk_t block;
 794         blk_t count = 1;
 795
 796         if (common_block_args_process(argc, argv, &block, &count))
 797                 return;
 798         if (check_fs_read_write(argv[0]))
 799                 return;
 800         while (count-- > 0) {
 801                 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
 802                         com_err(argv[0], 0, "Warning: block %u already clear",
 803                                 block);
 804                 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
 805                 block++;
 806         }
 807         ext2fs_mark_bb_dirty(current_fs);
 808 }
 809
 810 void do_setb(int argc, char *argv[])
 811 {
 812         blk_t block;
 813         blk_t count = 1;
 814
 815         if (common_block_args_process(argc, argv, &block, &count))
 816                 return;
 817         if (check_fs_read_write(argv[0]))
 818                 return;
 819         while (count-- > 0) {
 820                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
 821                         com_err(argv[0], 0, "Warning: block %u already set",
 822                                 block);
 823                 ext2fs_mark_block_bitmap(current_fs->block_map,block);
 824                 block++;
 825         }
 826         ext2fs_mark_bb_dirty(current_fs);
 827 }
 828
 829 void do_testb(int argc, char *argv[])
 830 {
 831         blk_t block;
 832         blk_t count = 1;
 833
 834         if (common_block_args_process(argc, argv, &block, &count))
 835                 return;
 836         while (count-- > 0) {
 837                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
 838                         printf("Block %u marked in use\n", block);
 839                 else
 840                         printf("Block %u not in use\n", block);
 841                 block++;
 842         }
 843 }
 844
 845 static void modify_u8(char *com, const char *prompt,
 846                       const char *format, __u8 *val)
 847 {
 848         char buf[200];
 849         unsigned long v;
 850         char *tmp;
 851
 852         sprintf(buf, format, *val);
 853         printf("%30s    [%s] ", prompt, buf);
 854         if (!fgets(buf, sizeof(buf), stdin))
 855                 return;
 856         if (buf[strlen (buf) - 1] == '\n')
 857                 buf[strlen (buf) - 1] = '\0';
 858         if (!buf[0])
 859                 return;
 860         v = strtoul(buf, &tmp, 0);
 861         if (*tmp)
 862                 com_err(com, 0, "Bad value - %s", buf);
 863         else
 864                 *val = v;
 865 }
 866
 867 static void modify_u16(char *com, const char *prompt,
 868                        const char *format, __u16 *val)
 869 {
 870         char buf[200];
 871         unsigned long v;
 872         char *tmp;
 873
 874         sprintf(buf, format, *val);
 875         printf("%30s    [%s] ", prompt, buf);
 876         if (!fgets(buf, sizeof(buf), stdin))
 877                 return;
 878         if (buf[strlen (buf) - 1] == '\n')
 879                 buf[strlen (buf) - 1] = '\0';
 880         if (!buf[0])
 881                 return;
 882         v = strtoul(buf, &tmp, 0);
 883         if (*tmp)
 884                 com_err(com, 0, "Bad value - %s", buf);
 885         else
 886                 *val = v;
 887 }
 888
 889 static void modify_u32(char *com, const char *prompt,
 890                        const char *format, __u32 *val)
 891 {
 892         char buf[200];
 893         unsigned long v;
 894         char *tmp;
 895
 896         sprintf(buf, format, *val);
 897         printf("%30s    [%s] ", prompt, buf);
 898         if (!fgets(buf, sizeof(buf), stdin))
 899                 return;
 900         if (buf[strlen (buf) - 1] == '\n')
 901                 buf[strlen (buf) - 1] = '\0';
 902         if (!buf[0])
 903                 return;
 904         v = strtoul(buf, &tmp, 0);
 905         if (*tmp)
 906                 com_err(com, 0, "Bad value - %s", buf);
 907         else
 908                 *val = v;
 909 }
 910
 911
 912 void do_modify_inode(int argc, char *argv[])
 913 {
 914         struct ext2_inode inode;
 915         ext2_ino_t      inode_num;
 916         int             i;
 917         unsigned char   *frag, *fsize;
 918         char            buf[80];
 919         int             os;
 920         const char      *hex_format = "0x%x";
 921         const char      *octal_format = "0%o";
 922         const char      *decimal_format = "%d";
 923         const char      *unsignedlong_format = "%lu";
 924
 925         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
 926                 return;
 927
 928         os = current_fs->super->s_creator_os;
 929
 930         if (debugfs_read_inode(inode_num, &inode, argv[1]))
 931                 return;
 932
 933         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
 934         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
 935         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
 936         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
 937         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
 938         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
 939         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
 940         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
 941         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
 942         if (os == EXT2_OS_LINUX)
 943                 modify_u16(argv[0], "Block count high", unsignedlong_format,
 944                            &inode.osd2.linux2.l_i_blocks_hi);
 945         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
 946         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
 947         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
 948 #if 0
 949         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
 950 #endif
 951         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
 952         if (LINUX_S_ISDIR(inode.i_mode))
 953                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
 954         else
 955                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
 956
 957         if (os == EXT2_OS_HURD)
 958                 modify_u32(argv[0], "Translator Block",
 959                             decimal_format, &inode.osd1.hurd1.h_i_translator);
 960
 961         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
 962         switch (os) {
 963             case EXT2_OS_HURD:
 964                 frag = &inode.osd2.hurd2.h_i_frag;
 965                 fsize = &inode.osd2.hurd2.h_i_fsize;
 966                 break;
 967             default:
 968                 frag = fsize = 0;
 969         }
 970         if (frag)
 971                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
 972         if (fsize)
 973                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
 974
 975         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
 976                 sprintf(buf, "Direct Block #%d", i);
 977                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
 978         }
 979         modify_u32(argv[0], "Indirect Block", decimal_format,
 980                     &inode.i_block[EXT2_IND_BLOCK]);
 981         modify_u32(argv[0], "Double Indirect Block", decimal_format,
 982                     &inode.i_block[EXT2_DIND_BLOCK]);
 983         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
 984                     &inode.i_block[EXT2_TIND_BLOCK]);
 985         if (debugfs_write_inode(inode_num, &inode, argv[1]))
 986                 return;
 987 }
 988
 989 void do_change_working_dir(int argc, char *argv[])
 990 {
 991         ext2_ino_t      inode;
 992         int             retval;
 993
 994         if (common_inode_args_process(argc, argv, &inode, 0))
 995                 return;
 996
 997         retval = ext2fs_check_directory(current_fs, inode);
 998         if (retval) {
 999                 com_err(argv[1], retval, 0);
1000                 return;
1001         }
1002         cwd = inode;
1003         return;
1004 }
1005
1006 void do_print_working_directory(int argc, char *argv[])
1007 {
1008         int     retval;
1009         char    *pathname = NULL;
1010
1011         if (common_args_process(argc, argv, 1, 1,
1012                                 "print_working_directory", "", 0))
1013                 return;
1014
1015         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1016         if (retval) {
1017                 com_err(argv[0], retval,
1018                         "while trying to get pathname of cwd");
1019         }
1020         printf("[pwd]   INODE: %6u  PATH: %s\n",
1021                cwd, pathname ? pathname : "NULL");
1022         if (pathname) {
1023                 free(pathname);
1024                 pathname = NULL;
1025         }
1026         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1027         if (retval) {
1028                 com_err(argv[0], retval,
1029                         "while trying to get pathname of root");
1030         }
1031         printf("[root]  INODE: %6u  PATH: %s\n",
1032                root, pathname ? pathname : "NULL");
1033         if (pathname) {
1034                 free(pathname);
1035                 pathname = NULL;
1036         }
1037         return;
1038 }
1039
1040 /*
1041  * Given a mode, return the ext2 file type
1042  */
1043 static int ext2_file_type(unsigned int mode)
1044 {
1045         if (LINUX_S_ISREG(mode))
1046                 return EXT2_FT_REG_FILE;
1047
1048         if (LINUX_S_ISDIR(mode))
1049                 return EXT2_FT_DIR;
1050
1051         if (LINUX_S_ISCHR(mode))
1052                 return EXT2_FT_CHRDEV;
1053
1054         if (LINUX_S_ISBLK(mode))
1055                 return EXT2_FT_BLKDEV;
1056
1057         if (LINUX_S_ISLNK(mode))
1058                 return EXT2_FT_SYMLINK;
1059
1060         if (LINUX_S_ISFIFO(mode))
1061                 return EXT2_FT_FIFO;
1062
1063         if (LINUX_S_ISSOCK(mode))
1064                 return EXT2_FT_SOCK;
1065
1066         return 0;
1067 }
1068
1069 static void make_link(char *sourcename, char *destname)
1070 {
1071         ext2_ino_t      ino;
1072         struct ext2_inode inode;
1073         int             retval;
1074         ext2_ino_t      dir;
1075         char            *dest, *cp, *base_name;
1076
1077         /*
1078          * Get the source inode
1079          */
1080         ino = string_to_inode(sourcename);
1081         if (!ino)
1082                 return;
1083         base_name = strrchr(sourcename, '/');
1084         if (base_name)
1085                 base_name++;
1086         else
1087                 base_name = sourcename;
1088         /*
1089          * Figure out the destination.  First see if it exists and is
1090          * a directory.
1091          */
1092         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1093                 dest = base_name;
1094         else {
1095                 /*
1096                  * OK, it doesn't exist.  See if it is
1097                  * '<dir>/basename' or 'basename'
1098                  */
1099                 cp = strrchr(destname, '/');
1100                 if (cp) {
1101                         *cp = 0;
1102                         dir = string_to_inode(destname);
1103                         if (!dir)
1104                                 return;
1105                         dest = cp+1;
1106                 } else {
1107                         dir = cwd;
1108                         dest = destname;
1109                 }
1110         }
1111
1112         if (debugfs_read_inode(ino, &inode, sourcename))
1113                 return;
1114
1115         retval = ext2fs_link(current_fs, dir, dest, ino,
1116                              ext2_file_type(inode.i_mode));
1117         if (retval)
1118                 com_err("make_link", retval, 0);
1119         return;
1120 }
1121
1122
1123 void do_link(int argc, char *argv[])
1124 {
1125         if (common_args_process(argc, argv, 3, 3, "link",
1126                                 "<source file> <dest_name>", CHECK_FS_RW))
1127                 return;
1128
1129         make_link(argv[1], argv[2]);
1130 }
1131
1132 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1133                             int blockcnt EXT2FS_ATTR((unused)),
1134                             void *private EXT2FS_ATTR((unused)))
1135 {
1136         blk_t   block;
1137
1138         block = *blocknr;
1139         ext2fs_block_alloc_stats(fs, block, +1);
1140         return 0;
1141 }
1142
1143 void do_undel(int argc, char *argv[])
1144 {
1145         ext2_ino_t      ino;
1146         struct ext2_inode inode;
1147
1148         if (common_args_process(argc, argv, 2, 3, "undelete",
1149                                 "<inode_num> [dest_name]",
1150                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1151                 return;
1152
1153         ino = string_to_inode(argv[1]);
1154         if (!ino)
1155                 return;
1156
1157         if (debugfs_read_inode(ino, &inode, argv[1]))
1158                 return;
1159
1160         if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
1161                 com_err(argv[1], 0, "Inode is not marked as deleted");
1162                 return;
1163         }
1164
1165         /*
1166          * XXX this function doesn't handle changing the links count on the
1167          * parent directory when undeleting a directory.
1168          */
1169         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1170         inode.i_dtime = 0;
1171
1172         if (debugfs_write_inode(ino, &inode, argv[0]))
1173                 return;
1174
1175         ext2fs_block_iterate(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1176                              mark_blocks_proc, NULL);
1177
1178         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1179
1180         if (argc > 2)
1181                 make_link(argv[1], argv[2]);
1182 }
1183
1184 static void unlink_file_by_name(char *filename)
1185 {
1186         int             retval;
1187         ext2_ino_t      dir;
1188         char            *base_name;
1189
1190         base_name = strrchr(filename, '/');
1191         if (base_name) {
1192                 *base_name++ = '\0';
1193                 dir = string_to_inode(filename);
1194                 if (!dir)
1195                         return;
1196         } else {
1197                 dir = cwd;
1198                 base_name = filename;
1199         }
1200         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1201         if (retval)
1202                 com_err("unlink_file_by_name", retval, 0);
1203         return;
1204 }
1205
1206 void do_unlink(int argc, char *argv[])
1207 {
1208         if (common_args_process(argc, argv, 2, 2, "link",
1209                                 "<pathname>", CHECK_FS_RW))
1210                 return;
1211
1212         unlink_file_by_name(argv[1]);
1213 }
1214
1215 void do_find_free_block(int argc, char *argv[])
1216 {
1217         blk_t   free_blk, goal, first_free = 0;
1218         int             count;
1219         errcode_t       retval;
1220         char            *tmp;
1221
1222         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1223                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1224                 return;
1225         }
1226         if (check_fs_open(argv[0]))
1227                 return;
1228
1229         if (argc > 1) {
1230                 count = strtol(argv[1],&tmp,0);
1231                 if (*tmp) {
1232                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1233                         return;
1234                 }
1235         } else
1236                 count = 1;
1237
1238         if (argc > 2) {
1239                 goal = strtol(argv[2], &tmp, 0);
1240                 if (*tmp) {
1241                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1242                         return;
1243                 }
1244         }
1245         else
1246                 goal = current_fs->super->s_first_data_block;
1247
1248         printf("Free blocks found: ");
1249         free_blk = goal - 1;
1250         while (count-- > 0) {
1251                 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
1252                                           &free_blk);
1253                 if (first_free) {
1254                         if (first_free == free_blk)
1255                                 break;
1256                 } else
1257                         first_free = free_blk;
1258                 if (retval) {
1259                         com_err("ext2fs_new_block", retval, 0);
1260                         return;
1261                 } else
1262                         printf("%u ", free_blk);
1263         }
1264         printf("\n");
1265 }
1266
1267 void do_find_free_inode(int argc, char *argv[])
1268 {
1269         ext2_ino_t      free_inode, dir;
1270         int             mode;
1271         int             retval;
1272         char            *tmp;
1273
1274         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1275                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1276                 return;
1277         }
1278         if (check_fs_open(argv[0]))
1279                 return;
1280
1281         if (argc > 1) {
1282                 dir = strtol(argv[1], &tmp, 0);
1283                 if (*tmp) {
1284                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1285                         return;
1286                 }
1287         }
1288         else
1289                 dir = root;
1290         if (argc > 2) {
1291                 mode = strtol(argv[2], &tmp, 0);
1292                 if (*tmp) {
1293                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1294                         return;
1295                 }
1296         } else
1297                 mode = 010755;
1298
1299         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1300         if (retval)
1301                 com_err("ext2fs_new_inode", retval, 0);
1302         else
1303                 printf("Free inode found: %u\n", free_inode);
1304 }
1305
1306 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1307 {
1308         ext2_file_t     e2_file;
1309         errcode_t       retval;
1310         int             got;
1311         unsigned int    written;
1312         char            buf[8192];
1313         char            *ptr;
1314
1315         retval = ext2fs_file_open(current_fs, newfile,
1316                                   EXT2_FILE_WRITE, &e2_file);
1317         if (retval)
1318                 return retval;
1319
1320         while (1) {
1321                 got = read(fd, buf, sizeof(buf));
1322                 if (got == 0)
1323                         break;
1324                 if (got < 0) {
1325                         retval = errno;
1326                         goto fail;
1327                 }
1328                 ptr = buf;
1329                 while (got > 0) {
1330                         retval = ext2fs_file_write(e2_file, ptr,
1331                                                    got, &written);
1332                         if (retval)
1333                                 goto fail;
1334
1335                         got -= written;
1336                         ptr += written;
1337                 }
1338         }
1339         retval = ext2fs_file_close(e2_file);
1340         return retval;
1341
1342 fail:
1343         (void) ext2fs_file_close(e2_file);
1344         return retval;
1345 }
1346
1347
1348 void do_write(int argc, char *argv[])
1349 {
1350         int             fd;
1351         struct stat     statbuf;
1352         ext2_ino_t      newfile;
1353         errcode_t       retval;
1354         struct ext2_inode inode;
1355
1356         if (common_args_process(argc, argv, 3, 3, "write",
1357                                 "<native file> <new file>", CHECK_FS_RW))
1358                 return;
1359
1360         fd = open(argv[1], O_RDONLY);
1361         if (fd < 0) {
1362                 com_err(argv[1], errno, 0);
1363                 return;
1364         }
1365         if (fstat(fd, &statbuf) < 0) {
1366                 com_err(argv[1], errno, 0);
1367                 close(fd);
1368                 return;
1369         }
1370
1371         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1372         if (retval == 0) {
1373                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1374                 close(fd);
1375                 return;
1376         }
1377
1378         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1379         if (retval) {
1380                 com_err(argv[0], retval, 0);
1381                 close(fd);
1382                 return;
1383         }
1384         printf("Allocated inode: %u\n", newfile);
1385         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1386                              EXT2_FT_REG_FILE);
1387         if (retval == EXT2_ET_DIR_NO_SPACE) {
1388                 retval = ext2fs_expand_dir(current_fs, cwd);
1389                 if (retval) {
1390                         com_err(argv[0], retval, "while expanding directory");
1391                         close(fd);
1392                         return;
1393                 }
1394                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1395                                      EXT2_FT_REG_FILE);
1396         }
1397         if (retval) {
1398                 com_err(argv[2], retval, 0);
1399                 close(fd);
1400                 return;
1401         }
1402         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1403                 com_err(argv[0], 0, "Warning: inode already set");
1404         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1405         memset(&inode, 0, sizeof(inode));
1406         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1407         inode.i_atime = inode.i_ctime = inode.i_mtime =
1408                 current_fs->now ? current_fs->now : time(0);
1409         inode.i_links_count = 1;
1410         inode.i_size = statbuf.st_size;
1411         if (current_fs->super->s_feature_incompat &
1412             EXT3_FEATURE_INCOMPAT_EXTENTS)
1413                 inode.i_flags |= EXT4_EXTENTS_FL;
1414         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1415                 close(fd);
1416                 return;
1417         }
1418         if (LINUX_S_ISREG(inode.i_mode)) {
1419                 retval = copy_file(fd, newfile);
1420                 if (retval)
1421                         com_err("copy_file", retval, 0);
1422         }
1423         close(fd);
1424 }
1425
1426 void do_mknod(int argc, char *argv[])
1427 {
1428         unsigned long   mode, major, minor;
1429         ext2_ino_t      newfile;
1430         errcode_t       retval;
1431         struct ext2_inode inode;
1432         int             filetype, nr;
1433
1434         if (check_fs_open(argv[0]))
1435                 return;
1436         if (argc < 3 || argv[2][1]) {
1437         usage:
1438                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1439                 return;
1440         }
1441         mode = minor = major = 0;
1442         switch (argv[2][0]) {
1443                 case 'p':
1444                         mode = LINUX_S_IFIFO;
1445                         filetype = EXT2_FT_FIFO;
1446                         nr = 3;
1447                         break;
1448                 case 'c':
1449                         mode = LINUX_S_IFCHR;
1450                         filetype = EXT2_FT_CHRDEV;
1451                         nr = 5;
1452                         break;
1453                 case 'b':
1454                         mode = LINUX_S_IFBLK;
1455                         filetype = EXT2_FT_BLKDEV;
1456                         nr = 5;
1457                         break;
1458                 default:
1459                         filetype = 0;
1460                         nr = 0;
1461         }
1462         if (nr == 5) {
1463                 major = strtoul(argv[3], argv+3, 0);
1464                 minor = strtoul(argv[4], argv+4, 0);
1465                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1466                         nr = 0;
1467         }
1468         if (argc != nr)
1469                 goto usage;
1470         if (check_fs_read_write(argv[0]))
1471                 return;
1472         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1473         if (retval) {
1474                 com_err(argv[0], retval, 0);
1475                 return;
1476         }
1477         printf("Allocated inode: %u\n", newfile);
1478         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1479         if (retval == EXT2_ET_DIR_NO_SPACE) {
1480                 retval = ext2fs_expand_dir(current_fs, cwd);
1481                 if (retval) {
1482                         com_err(argv[0], retval, "while expanding directory");
1483                         return;
1484                 }
1485                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1486                                      filetype);
1487         }
1488         if (retval) {
1489                 com_err(argv[1], retval, 0);
1490                 return;
1491         }
1492         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1493                 com_err(argv[0], 0, "Warning: inode already set");
1494         ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1495         ext2fs_mark_ib_dirty(current_fs);
1496         memset(&inode, 0, sizeof(inode));
1497         inode.i_mode = mode;
1498         inode.i_atime = inode.i_ctime = inode.i_mtime =
1499                 current_fs->now ? current_fs->now : time(0);
1500         if ((major < 256) && (minor < 256)) {
1501                 inode.i_block[0] = major*256+minor;
1502                 inode.i_block[1] = 0;
1503         } else {
1504                 inode.i_block[0] = 0;
1505                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1506         }
1507         inode.i_links_count = 1;
1508         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1509                 return;
1510 }
1511
1512 void do_mkdir(int argc, char *argv[])
1513 {
1514         char    *cp;
1515         ext2_ino_t      parent;
1516         char    *name;
1517         errcode_t retval;
1518
1519         if (common_args_process(argc, argv, 2, 2, "mkdir",
1520                                 "<filename>", CHECK_FS_RW))
1521                 return;
1522
1523         cp = strrchr(argv[1], '/');
1524         if (cp) {
1525                 *cp = 0;
1526                 parent = string_to_inode(argv[1]);
1527                 if (!parent) {
1528                         com_err(argv[1], ENOENT, 0);
1529                         return;
1530                 }
1531                 name = cp+1;
1532         } else {
1533                 parent = cwd;
1534                 name = argv[1];
1535         }
1536
1537 try_again:
1538         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1539         if (retval == EXT2_ET_DIR_NO_SPACE) {
1540                 retval = ext2fs_expand_dir(current_fs, parent);
1541                 if (retval) {
1542                         com_err(argv[0], retval, "while expanding directory");
1543                         return;
1544                 }
1545                 goto try_again;
1546         }
1547         if (retval) {
1548                 com_err("ext2fs_mkdir", retval, 0);
1549                 return;
1550         }
1551
1552 }
1553
1554 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1555                                int blockcnt EXT2FS_ATTR((unused)),
1556                                void *private EXT2FS_ATTR((unused)))
1557 {
1558         blk_t   block;
1559
1560         block = *blocknr;
1561         ext2fs_block_alloc_stats(fs, block, -1);
1562         return 0;
1563 }
1564
1565 static void kill_file_by_inode(ext2_ino_t inode)
1566 {
1567         struct ext2_inode inode_buf;
1568
1569         if (debugfs_read_inode(inode, &inode_buf, 0))
1570                 return;
1571         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1572         if (debugfs_write_inode(inode, &inode_buf, 0))
1573                 return;
1574         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1575                 return;
1576
1577         ext2fs_block_iterate(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1578                              release_blocks_proc, NULL);
1579         printf("\n");
1580         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1581                                   LINUX_S_ISDIR(inode_buf.i_mode));
1582 }
1583
1584
1585 void do_kill_file(int argc, char *argv[])
1586 {
1587         ext2_ino_t inode_num;
1588
1589         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1590                 return;
1591
1592         kill_file_by_inode(inode_num);
1593 }
1594
1595 void do_rm(int argc, char *argv[])
1596 {
1597         int retval;
1598         ext2_ino_t inode_num;
1599         struct ext2_inode inode;
1600
1601         if (common_args_process(argc, argv, 2, 2, "rm",
1602                                 "<filename>", CHECK_FS_RW))
1603                 return;
1604
1605         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1606         if (retval) {
1607                 com_err(argv[0], retval, "while trying to resolve filename");
1608                 return;
1609         }
1610
1611         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1612                 return;
1613
1614         if (LINUX_S_ISDIR(inode.i_mode)) {
1615                 com_err(argv[0], 0, "file is a directory");
1616                 return;
1617         }
1618
1619         --inode.i_links_count;
1620         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1621                 return;
1622
1623         unlink_file_by_name(argv[1]);
1624         if (inode.i_links_count == 0)
1625                 kill_file_by_inode(inode_num);
1626 }
1627
1628 struct rd_struct {
1629         ext2_ino_t      parent;
1630         int             empty;
1631 };
1632
1633 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1634                       int       entry EXT2FS_ATTR((unused)),
1635                       struct ext2_dir_entry *dirent,
1636                       int       offset EXT2FS_ATTR((unused)),
1637                       int       blocksize EXT2FS_ATTR((unused)),
1638                       char      *buf EXT2FS_ATTR((unused)),
1639                       void      *private)
1640 {
1641         struct rd_struct *rds = (struct rd_struct *) private;
1642
1643         if (dirent->inode == 0)
1644                 return 0;
1645         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1646                 return 0;
1647         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1648             (dirent->name[1] == '.')) {
1649                 rds->parent = dirent->inode;
1650                 return 0;
1651         }
1652         rds->empty = 0;
1653         return 0;
1654 }
1655
1656 void do_rmdir(int argc, char *argv[])
1657 {
1658         int retval;
1659         ext2_ino_t inode_num;
1660         struct ext2_inode inode;
1661         struct rd_struct rds;
1662
1663         if (common_args_process(argc, argv, 2, 2, "rmdir",
1664                                 "<filename>", CHECK_FS_RW))
1665                 return;
1666
1667         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1668         if (retval) {
1669                 com_err(argv[0], retval, "while trying to resolve filename");
1670                 return;
1671         }
1672
1673         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1674                 return;
1675
1676         if (!LINUX_S_ISDIR(inode.i_mode)) {
1677                 com_err(argv[0], 0, "file is not a directory");
1678                 return;
1679         }
1680
1681         rds.parent = 0;
1682         rds.empty = 1;
1683
1684         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1685                                     0, rmdir_proc, &rds);
1686         if (retval) {
1687                 com_err(argv[0], retval, "while iterating over directory");
1688                 return;
1689         }
1690         if (rds.empty == 0) {
1691                 com_err(argv[0], 0, "directory not empty");
1692                 return;
1693         }
1694
1695         inode.i_links_count = 0;
1696         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1697                 return;
1698
1699         unlink_file_by_name(argv[1]);
1700         kill_file_by_inode(inode_num);
1701
1702         if (rds.parent) {
1703                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1704                         return;
1705                 if (inode.i_links_count > 1)
1706                         inode.i_links_count--;
1707                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1708                         return;
1709         }
1710 }
1711
1712 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1713                             char *argv[] EXT2FS_ATTR((unused)))
1714 {
1715         FILE *out = stdout;
1716
1717         if (current_fs)
1718                 fprintf(out, "Open mode: read-%s\n",
1719                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1720         fprintf(out, "Filesystem in use: %s\n",
1721                 current_fs ? current_fs->device_name : "--none--");
1722 }
1723
1724 void do_expand_dir(int argc, char *argv[])
1725 {
1726         ext2_ino_t inode;
1727         int retval;
1728
1729         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1730                 return;
1731
1732         retval = ext2fs_expand_dir(current_fs, inode);
1733         if (retval)
1734                 com_err("ext2fs_expand_dir", retval, 0);
1735         return;
1736 }
1737
1738 void do_features(int argc, char *argv[])
1739 {
1740         int     i;
1741
1742         if (check_fs_open(argv[0]))
1743                 return;
1744
1745         if ((argc != 1) && check_fs_read_write(argv[0]))
1746                 return;
1747         for (i=1; i < argc; i++) {
1748                 if (e2p_edit_feature(argv[i],
1749                                      &current_fs->super->s_feature_compat, 0))
1750                         com_err(argv[0], 0, "Unknown feature: %s\n",
1751                                 argv[i]);
1752                 else
1753                         ext2fs_mark_super_dirty(current_fs);
1754         }
1755         print_features(current_fs->super, stdout);
1756 }
1757
1758 void do_bmap(int argc, char *argv[])
1759 {
1760         ext2_ino_t      ino;
1761         blk_t           blk, pblk;
1762         int             err;
1763         errcode_t       errcode;
1764
1765         if (common_args_process(argc, argv, 3, 3, argv[0],
1766                                 "<file> logical_blk", 0))
1767                 return;
1768
1769         ino = string_to_inode(argv[1]);
1770         if (!ino)
1771                 return;
1772         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1773
1774         errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1775         if (errcode) {
1776                 com_err("argv[0]", errcode,
1777                         "while mapping logical block %u\n", blk);
1778                 return;
1779         }
1780         printf("%u\n", pblk);
1781 }
1782
1783 void do_imap(int argc, char *argv[])
1784 {
1785         ext2_ino_t      ino;
1786         unsigned long   group, block, block_nr, offset;
1787
1788         if (common_args_process(argc, argv, 2, 2, argv[0],
1789                                 "<file>", 0))
1790                 return;
1791         ino = string_to_inode(argv[1]);
1792         if (!ino)
1793                 return;
1794
1795         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1796         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1797                 EXT2_INODE_SIZE(current_fs->super);
1798         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1799         if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
1800                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1801                         group);
1802                 return;
1803         }
1804         block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table +
1805                 block;
1806         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1807
1808         printf("Inode %d is part of block group %lu\n"
1809                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1810                block_nr, offset);
1811
1812 }
1813
1814 void do_set_current_time(int argc, char *argv[])
1815 {
1816         time_t now;
1817
1818         if (common_args_process(argc, argv, 2, 2, argv[0],
1819                                 "<time>", 0))
1820                 return;
1821
1822         now = string_to_time(argv[1]);
1823         if (now == ((time_t) -1)) {
1824                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1825                         argv[1]);
1826                 return;
1827
1828         } else {
1829                 printf("Setting current time to %s\n", time_to_string(now));
1830                 current_fs->now = now;
1831         }
1832 }
1833
1834 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
1835 {
1836         int compat, bit, ret;
1837         unsigned int feature_mask;
1838
1839         if (name) {
1840                 if (feature_type == E2P_FS_FEATURE)
1841                         ret = e2p_string2feature(name, &compat, &feature_mask);
1842                 else
1843                         ret = e2p_jrnl_string2feature(name, &compat,
1844                                                       &feature_mask);
1845                 if (ret)
1846                         return ret;
1847
1848                 if (!(supp[compat] & feature_mask))
1849                         return 1;
1850         } else {
1851                 for (compat = 0; compat < 3; compat++) {
1852                         for (bit = 0, feature_mask = 1; bit < 32;
1853                              bit++, feature_mask <<= 1) {
1854                                 if (supp[compat] & feature_mask) {
1855                                         if (feature_type == E2P_FS_FEATURE)
1856                                                 fprintf(stdout, " %s",
1857                                                 e2p_feature2string(compat,
1858                                                 feature_mask));
1859                                         else
1860                                                 fprintf(stdout, " %s",
1861                                                 e2p_jrnl_feature2string(compat,
1862                                                 feature_mask));
1863                                 }
1864                         }
1865                 }
1866                 fprintf(stdout, "\n");
1867         }
1868
1869         return 0;
1870 }
1871
1872 void do_supported_features(int argc, char *argv[])
1873 {
1874         int     i, j, ret;
1875         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
1876                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
1877                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
1878         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
1879                                  JFS_KNOWN_INCOMPAT_FEATURES,
1880                                  JFS_KNOWN_ROCOMPAT_FEATURES };
1881
1882         if (argc > 1) {
1883                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
1884                 if (ret) {
1885                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
1886                                                 argv[1]);
1887                 }
1888                 if (ret)
1889                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
1890                 else
1891                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
1892         } else {
1893                 fprintf(stdout, "Supported features:");
1894                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
1895                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
1896         }
1897 }
1898
1899 static int source_file(const char *cmd_file, int sci_idx)
1900 {
1901         FILE            *f;
1902         char            buf[256];
1903         char            *cp;
1904         int             exit_status = 0;
1905         int             retval;
1906
1907         if (strcmp(cmd_file, "-") == 0)
1908                 f = stdin;
1909         else {
1910                 f = fopen(cmd_file, "r");
1911                 if (!f) {
1912                         perror(cmd_file);
1913                         exit(1);
1914                 }
1915         }
1916         fflush(stdout);
1917         fflush(stderr);
1918         setbuf(stdout, NULL);
1919         setbuf(stderr, NULL);
1920         while (!feof(f)) {
1921                 if (fgets(buf, sizeof(buf), f) == NULL)
1922                         break;
1923                 cp = strchr(buf, '\n');
1924                 if (cp)
1925                         *cp = 0;
1926                 cp = strchr(buf, '\r');
1927                 if (cp)
1928                         *cp = 0;
1929                 printf("debugfs: %s\n", buf);
1930                 retval = ss_execute_line(sci_idx, buf);
1931                 if (retval) {
1932                         ss_perror(sci_idx, retval, buf);
1933                         exit_status++;
1934                 }
1935         }
1936         return exit_status;
1937 }
1938
1939 int main(int argc, char **argv)
1940 {
1941         int             retval;
1942         int             sci_idx;
1943         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1944         int             c;
1945         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
1946         char            *request = 0;
1947         int             exit_status = 0;
1948         char            *cmd_file = 0;
1949         blk_t           superblock = 0;
1950         blk_t           blocksize = 0;
1951         int             catastrophic = 0;
1952         char            *data_filename = 0;
1953
1954         if (debug_prog_name == 0)
1955                 debug_prog_name = "debugfs";
1956
1957         add_error_table(&et_ext2_error_table);
1958         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
1959                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
1960
1961         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
1962                 switch (c) {
1963                 case 'R':
1964                         request = optarg;
1965                         break;
1966                 case 'f':
1967                         cmd_file = optarg;
1968                         break;
1969                 case 'd':
1970                         data_filename = optarg;
1971                         break;
1972                 case 'i':
1973                         open_flags |= EXT2_FLAG_IMAGE_FILE;
1974                         break;
1975                 case 'w':
1976                         open_flags |= EXT2_FLAG_RW;
1977                         break;
1978                 case 'b':
1979                         blocksize = parse_ulong(optarg, argv[0],
1980                                                 "block size", 0);
1981                         break;
1982                 case 's':
1983                         superblock = parse_ulong(optarg, argv[0],
1984                                                  "superblock number", 0);
1985                         break;
1986                 case 'c':
1987                         catastrophic = 1;
1988                         break;
1989                 case 'V':
1990                         /* Print version number and exit */
1991                         fprintf(stderr, "\tUsing %s\n",
1992                                 error_message(EXT2_ET_BASE));
1993                         exit(0);
1994                 default:
1995                         com_err(argv[0], 0, usage, debug_prog_name);
1996                         return 1;
1997                 }
1998         }
1999         if (optind < argc)
2000                 open_filesystem(argv[optind], open_flags,
2001                                 superblock, blocksize, catastrophic,
2002                                 data_filename);
2003
2004         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2005                                        &debug_cmds, &retval);
2006         if (retval) {
2007                 ss_perror(sci_idx, retval, "creating invocation");
2008                 exit(1);
2009         }
2010         ss_get_readline(sci_idx);
2011
2012         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2013         if (retval) {
2014                 ss_perror(sci_idx, retval, "adding standard requests");
2015                 exit (1);
2016         }
2017         if (extra_cmds)
2018                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2019         if (retval) {
2020                 ss_perror(sci_idx, retval, "adding extra requests");
2021                 exit (1);
2022         }
2023         if (request) {
2024                 retval = 0;
2025                 retval = ss_execute_line(sci_idx, request);
2026                 if (retval) {
2027                         ss_perror(sci_idx, retval, request);
2028                         exit_status++;
2029                 }
2030         } else if (cmd_file) {
2031                 exit_status = source_file(cmd_file, sci_idx);
2032         } else {
2033                 ss_listen(sci_idx);
2034         }
2035
2036         if (current_fs)
2037                 close_filesystem();
2038
2039         remove_error_table(&et_ext2_error_table);
2040         return exit_status;
2041 }