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, blk64_t superblock,
  49                             blk64_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         blk64_t superblock = 0;
 129         blk64_t blocksize = 0;
 130         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 131         char    *data_filename = 0;
 132
 133         reset_getopt();
 134         while ((c = getopt (argc, argv, "iwfecb:s:d: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 'D':
 155                         open_flags |= EXT2_FLAG_DIRECT_IO;
 156                         break;
 157                 case 'b':
 158                         blocksize = parse_ulong(optarg, argv[0],
 159                                                 "block size", &err);
 160                         if (err)
 161                                 return;
 162                         break;
 163                 case 's':
 164                         superblock = parse_ulong(optarg, argv[0],
 165                                                  "superblock number", &err);
 166                         if (err)
 167                                 return;
 168                         break;
 169                 default:
 170                         goto print_usage;
 171                 }
 172         }
 173         if (optind != argc-1) {
 174                 goto print_usage;
 175         }
 176         if (check_fs_not_open(argv[0]))
 177                 return;
 178         open_filesystem(argv[optind], open_flags,
 179                         superblock, blocksize, catastrophic,
 180                         data_filename);
 181         return;
 182
 183 print_usage:
 184         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 185                 "[-c] [-w] <device>\n", argv[0]);
 186 }
 187
 188 void do_lcd(int argc, char **argv)
 189 {
 190         if (argc != 2) {
 191                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 192                 return;
 193         }
 194
 195         if (chdir(argv[1]) == -1) {
 196                 com_err(argv[0], errno,
 197                         "while trying to change native directory to %s",
 198                         argv[1]);
 199                 return;
 200         }
 201 }
 202
 203 static void close_filesystem(NOARGS)
 204 {
 205         int     retval;
 206
 207         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 208                 retval = ext2fs_write_inode_bitmap(current_fs);
 209                 if (retval)
 210                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 211         }
 212         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 213                 retval = ext2fs_write_block_bitmap(current_fs);
 214                 if (retval)
 215                         com_err("ext2fs_write_block_bitmap", retval, 0);
 216         }
 217         retval = ext2fs_close(current_fs);
 218         if (retval)
 219                 com_err("ext2fs_close", retval, 0);
 220         current_fs = NULL;
 221         return;
 222 }
 223
 224 void do_close_filesys(int argc, char **argv)
 225 {
 226         int     c;
 227
 228         if (check_fs_open(argv[0]))
 229                 return;
 230
 231         reset_getopt();
 232         while ((c = getopt (argc, argv, "a")) != EOF) {
 233                 switch (c) {
 234                 case 'a':
 235                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 236                         break;
 237                 default:
 238                         goto print_usage;
 239                 }
 240         }
 241
 242         if (argc > optind) {
 243         print_usage:
 244                 com_err(0, 0, "Usage: close_filesys [-a]");
 245                 return;
 246         }
 247
 248         close_filesystem();
 249 }
 250
 251 void do_init_filesys(int argc, char **argv)
 252 {
 253         struct ext2_super_block param;
 254         errcode_t       retval;
 255         int             err;
 256
 257         if (common_args_process(argc, argv, 3, 3, "initialize",
 258                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 259                 return;
 260
 261         memset(&param, 0, sizeof(struct ext2_super_block));
 262         ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
 263                                                     "blocks count", &err));
 264         if (err)
 265                 return;
 266         retval = ext2fs_initialize(argv[1], 0, &param,
 267                                    unix_io_manager, &current_fs);
 268         if (retval) {
 269                 com_err(argv[1], retval, "while initializing filesystem");
 270                 current_fs = NULL;
 271                 return;
 272         }
 273         root = cwd = EXT2_ROOT_INO;
 274         return;
 275 }
 276
 277 static void print_features(struct ext2_super_block * s, FILE *f)
 278 {
 279         int     i, j, printed=0;
 280         __u32   *mask = &s->s_feature_compat, m;
 281
 282         fputs("Filesystem features:", f);
 283         for (i=0; i <3; i++,mask++) {
 284                 for (j=0,m=1; j < 32; j++, m<<=1) {
 285                         if (*mask & m) {
 286                                 fprintf(f, " %s", e2p_feature2string(i, m));
 287                                 printed++;
 288                         }
 289                 }
 290         }
 291         if (printed == 0)
 292                 fputs("(none)", f);
 293         fputs("\n", f);
 294 }
 295
 296 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 297                           const char *str, int *first, FILE *f)
 298 {
 299         if (ext2fs_bg_flags_test(fs, group, mask)) {
 300                 if (*first) {
 301                         fputs("           [", f);
 302                         *first = 0;
 303                 } else
 304                         fputs(", ", f);
 305                 fputs(str, f);
 306         }
 307 }
 308
 309 void do_show_super_stats(int argc, char *argv[])
 310 {
 311         dgrp_t  i;
 312         FILE    *out;
 313         int     c, header_only = 0;
 314         int     numdirs = 0, first, gdt_csum;
 315
 316         reset_getopt();
 317         while ((c = getopt (argc, argv, "h")) != EOF) {
 318                 switch (c) {
 319                 case 'h':
 320                         header_only++;
 321                         break;
 322                 default:
 323                         goto print_usage;
 324                 }
 325         }
 326         if (optind != argc) {
 327                 goto print_usage;
 328         }
 329         if (check_fs_open(argv[0]))
 330                 return;
 331         out = open_pager();
 332
 333         list_super2(current_fs->super, out);
 334         for (i=0; i < current_fs->group_desc_count; i++)
 335                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 336         fprintf(out, "Directories:              %d\n", numdirs);
 337
 338         if (header_only) {
 339                 close_pager(out);
 340                 return;
 341         }
 342
 343         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 344                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 345         for (i = 0; i < current_fs->group_desc_count; i++) {
 346                 fprintf(out, " Group %2d: block bitmap at %llu, "
 347                         "inode bitmap at %llu, "
 348                         "inode table at %llu\n"
 349                         "           %u free %s, "
 350                         "%u free %s, "
 351                         "%u used %s%s",
 352                         i, ext2fs_block_bitmap_loc(current_fs, i),
 353                         ext2fs_inode_bitmap_loc(current_fs, i),
 354                         ext2fs_inode_table_loc(current_fs, i),
 355                         ext2fs_bg_free_blocks_count(current_fs, i),
 356                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 357                         "blocks" : "block",
 358                         ext2fs_bg_free_inodes_count(current_fs, i),
 359                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 360                         "inodes" : "inode",
 361                         ext2fs_bg_used_dirs_count(current_fs, i),
 362                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 363                                 : "directory", gdt_csum ? ", " : "\n");
 364                 if (gdt_csum)
 365                         fprintf(out, "%u unused %s\n",
 366                                 ext2fs_bg_itable_unused(current_fs, i),
 367                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 368                                 "inodes" : "inode");
 369                 first = 1;
 370                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 371                               &first, out);
 372                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 373                               &first, out);
 374                 if (gdt_csum) {
 375                         fprintf(out, "%sChecksum 0x%04x",
 376                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 377                         first = 0;
 378                 }
 379                 if (!first)
 380                         fputs("]\n", out);
 381         }
 382         close_pager(out);
 383         return;
 384 print_usage:
 385         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 386 }
 387
 388 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 389                       char **argv EXT2FS_ATTR((unused)))
 390 {
 391         if (check_fs_open(argv[0]))
 392                 return;
 393         if (check_fs_read_write(argv[0]))
 394                 return;
 395
 396         if (argv[1] && !strcmp(argv[1], "-clean"))
 397                 current_fs->super->s_state |= EXT2_VALID_FS;
 398         else
 399                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 400         ext2fs_mark_super_dirty(current_fs);
 401 }
 402
 403 struct list_blocks_struct {
 404         FILE            *f;
 405         e2_blkcnt_t     total;
 406         blk64_t         first_block, last_block;
 407         e2_blkcnt_t     first_bcnt, last_bcnt;
 408         e2_blkcnt_t     first;
 409 };
 410
 411 static void finish_range(struct list_blocks_struct *lb)
 412 {
 413         if (lb->first_block == 0)
 414                 return;
 415         if (lb->first)
 416                 lb->first = 0;
 417         else
 418                 fprintf(lb->f, ", ");
 419         if (lb->first_block == lb->last_block)
 420                 fprintf(lb->f, "(%lld):%llu",
 421                         (long long)lb->first_bcnt, lb->first_block);
 422         else
 423                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 424                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 425                         lb->first_block, lb->last_block);
 426         lb->first_block = 0;
 427 }
 428
 429 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 430                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 431                             blk64_t ref_block EXT2FS_ATTR((unused)),
 432                             int ref_offset EXT2FS_ATTR((unused)),
 433                             void *private)
 434 {
 435         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 436
 437         lb->total++;
 438         if (blockcnt >= 0) {
 439                 /*
 440                  * See if we can add on to the existing range (if it exists)
 441                  */
 442                 if (lb->first_block &&
 443                     (lb->last_block+1 == *blocknr) &&
 444                     (lb->last_bcnt+1 == blockcnt)) {
 445                         lb->last_block = *blocknr;
 446                         lb->last_bcnt = blockcnt;
 447                         return 0;
 448                 }
 449                 /*
 450                  * Start a new range.
 451                  */
 452                 finish_range(lb);
 453                 lb->first_block = lb->last_block = *blocknr;
 454                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 455                 return 0;
 456         }
 457         /*
 458          * Not a normal block.  Always force a new range.
 459          */
 460         finish_range(lb);
 461         if (lb->first)
 462                 lb->first = 0;
 463         else
 464                 fprintf(lb->f, ", ");
 465         if (blockcnt == -1)
 466                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 467         else if (blockcnt == -2)
 468                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 469         else if (blockcnt == -3)
 470                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 471         return 0;
 472 }
 473
 474 static void dump_xattr_string(FILE *out, const char *str, int len)
 475 {
 476         int printable = 0;
 477         int i;
 478
 479         /* check: is string "printable enough?" */
 480         for (i = 0; i < len; i++)
 481                 if (isprint(str[i]))
 482                         printable++;
 483
 484         if (printable <= len*7/8)
 485                 printable = 0;
 486
 487         for (i = 0; i < len; i++)
 488                 if (printable)
 489                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 490                                 (unsigned char)str[i]);
 491                 else
 492                         fprintf(out, "%02x ", (unsigned char)str[i]);
 493 }
 494
 495 static void internal_dump_inode_extra(FILE *out,
 496                                       const char *prefix EXT2FS_ATTR((unused)),
 497                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 498                                       struct ext2_inode_large *inode)
 499 {
 500         struct ext2_ext_attr_entry *entry;
 501         __u32 *magic;
 502         char *start, *end;
 503         unsigned int storage_size;
 504
 505         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 506         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 507                         EXT2_GOOD_OLD_INODE_SIZE) {
 508                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 509                                 inode->i_extra_isize);
 510                 return;
 511         }
 512         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 513                         EXT2_GOOD_OLD_INODE_SIZE -
 514                         inode->i_extra_isize;
 515         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 516                         inode->i_extra_isize);
 517         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 518                 fprintf(out, "Extended attributes stored in inode body: \n");
 519                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 520                 start = (char *) magic + sizeof(__u32);
 521                 entry = (struct ext2_ext_attr_entry *) start;
 522                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 523                         struct ext2_ext_attr_entry *next =
 524                                 EXT2_EXT_ATTR_NEXT(entry);
 525                         if (entry->e_value_size > storage_size ||
 526                                         (char *) next >= end) {
 527                                 fprintf(out, "invalid EA entry in inode\n");
 528                                 return;
 529                         }
 530                         fprintf(out, "  ");
 531                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 532                                           entry->e_name_len);
 533                         fprintf(out, " = \"");
 534                         dump_xattr_string(out, start + entry->e_value_offs,
 535                                                 entry->e_value_size);
 536                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 537                         entry = next;
 538                 }
 539         }
 540 }
 541
 542 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 543 {
 544         struct list_blocks_struct lb;
 545
 546         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 547         lb.total = 0;
 548         lb.first_block = 0;
 549         lb.f = f;
 550         lb.first = 1;
 551         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 552                               list_blocks_proc, (void *)&lb);
 553         finish_range(&lb);
 554         if (lb.total)
 555                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 556         fprintf(f,"\n");
 557 }
 558
 559 static int int_log10(unsigned long long arg)
 560 {
 561         int     l = 0;
 562
 563         arg = arg / 10;
 564         while (arg) {
 565                 l++;
 566                 arg = arg / 10;
 567         }
 568         return l;
 569 }
 570
 571 #define DUMP_LEAF_EXTENTS       0x01
 572 #define DUMP_NODE_EXTENTS       0x02
 573 #define DUMP_EXTENT_TABLE       0x04
 574
 575 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 576                          int flags, int logical_width, int physical_width)
 577 {
 578         ext2_extent_handle_t    handle;
 579         struct ext2fs_extent    extent;
 580         struct ext2_extent_info info;
 581         int                     op = EXT2_EXTENT_ROOT;
 582         unsigned int            printed = 0;
 583         errcode_t               errcode;
 584
 585         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 586         if (errcode)
 587                 return;
 588
 589         if (flags & DUMP_EXTENT_TABLE)
 590                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 591                         (logical_width*2)+3, "Logical",
 592                         (physical_width*2)+3, "Physical");
 593         else
 594                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 595
 596         while (1) {
 597                 errcode = ext2fs_extent_get(handle, op, &extent);
 598
 599                 if (errcode)
 600                         break;
 601
 602                 op = EXT2_EXTENT_NEXT;
 603
 604                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 605                         continue;
 606
 607                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 608                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 609                                 continue;
 610                 } else {
 611                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 612                                 continue;
 613                 }
 614
 615                 errcode = ext2fs_extent_get_info(handle, &info);
 616                 if (errcode)
 617                         continue;
 618
 619                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 620                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 621                                 continue;
 622
 623                         if (flags & DUMP_EXTENT_TABLE) {
 624                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 625                                         "%*llu%*s %6u\n",
 626                                         info.curr_level, info.max_depth,
 627                                         info.curr_entry, info.num_entries,
 628                                         logical_width,
 629                                         extent.e_lblk,
 630                                         logical_width,
 631                                         extent.e_lblk + (extent.e_len - 1),
 632                                         physical_width,
 633                                         extent.e_pblk,
 634                                         physical_width+3, "", extent.e_len);
 635                                 continue;
 636                         }
 637
 638                         fprintf(f, "%s(ETB%d):%lld",
 639                                 printed ? ", " : "", info.curr_level,
 640                                 extent.e_pblk);
 641                         printed = 1;
 642                         continue;
 643                 }
 644
 645                 if (flags & DUMP_EXTENT_TABLE) {
 646                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 647                                 "%*llu - %*llu %6u %s\n",
 648                                 info.curr_level, info.max_depth,
 649                                 info.curr_entry, info.num_entries,
 650                                 logical_width,
 651                                 extent.e_lblk,
 652                                 logical_width,
 653                                 extent.e_lblk + (extent.e_len - 1),
 654                                 physical_width,
 655                                 extent.e_pblk,
 656                                 physical_width,
 657                                 extent.e_pblk + (extent.e_len - 1),
 658                                 extent.e_len,
 659                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 660                                         "Uninit" : "");
 661                         continue;
 662                 }
 663
 664                 if (extent.e_len == 0)
 665                         continue;
 666                 else if (extent.e_len == 1)
 667                         fprintf(f,
 668                                 "%s(%lld%s):%lld",
 669                                 printed ? ", " : "",
 670                                 extent.e_lblk,
 671                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 672                                 "[u]" : "",
 673                                 extent.e_pblk);
 674                 else
 675                         fprintf(f,
 676                                 "%s(%lld-%lld%s):%lld-%lld",
 677                                 printed ? ", " : "",
 678                                 extent.e_lblk,
 679                                 extent.e_lblk + (extent.e_len - 1),
 680                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 681                                         "[u]" : "",
 682                                 extent.e_pblk,
 683                                 extent.e_pblk + (extent.e_len - 1));
 684                 printed = 1;
 685         }
 686         if (printed)
 687                 fprintf(f, "\n");
 688 }
 689
 690 void internal_dump_inode(FILE *out, const char *prefix,
 691                          ext2_ino_t inode_num, struct ext2_inode *inode,
 692                          int do_dump_blocks)
 693 {
 694         const char *i_type;
 695         char frag, fsize;
 696         int os = current_fs->super->s_creator_os;
 697         struct ext2_inode_large *large_inode;
 698         int is_large_inode = 0;
 699
 700         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 701                 is_large_inode = 1;
 702         large_inode = (struct ext2_inode_large *) inode;
 703
 704         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 705         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 706         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 707         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 708         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 709         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 710         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 711         else i_type = "bad type";
 712         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 713         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 714                 prefix, inode->i_mode & 0777, inode->i_flags);
 715         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 716                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 717                         prefix, inode->i_generation, large_inode->i_version_hi,
 718                         inode->osd1.linux1.l_i_version);
 719         } else {
 720                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 721                         inode->i_generation, inode->osd1.linux1.l_i_version);
 722         }
 723         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 724                 prefix, inode_uid(*inode), inode_gid(*inode));
 725         if (LINUX_S_ISREG(inode->i_mode)) {
 726                 unsigned long long i_size = (inode->i_size |
 727                                     ((unsigned long long)inode->i_size_high << 32));
 728
 729                 fprintf(out, "%llu\n", i_size);
 730         } else
 731                 fprintf(out, "%d\n", inode->i_size);
 732         if (os == EXT2_OS_HURD)
 733                 fprintf(out,
 734                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 735                         prefix,
 736                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 737                         inode->osd1.hurd1.h_i_translator);
 738         else
 739                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 740                         prefix,
 741                         inode->i_file_acl | ((long long)
 742                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 743                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 744         if (os == EXT2_OS_LINUX)
 745                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 746                         prefix, inode->i_links_count,
 747                         (((unsigned long long)
 748                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 749                         inode->i_blocks);
 750         else
 751                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 752                         prefix, inode->i_links_count, inode->i_blocks);
 753         switch (os) {
 754             case EXT2_OS_HURD:
 755                 frag = inode->osd2.hurd2.h_i_frag;
 756                 fsize = inode->osd2.hurd2.h_i_fsize;
 757                 break;
 758             default:
 759                 frag = fsize = 0;
 760         }
 761         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 762                 prefix, inode->i_faddr, frag, fsize);
 763         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 764                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 765                         inode->i_ctime, large_inode->i_ctime_extra,
 766                         time_to_string(inode->i_ctime));
 767                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 768                         inode->i_atime, large_inode->i_atime_extra,
 769                         time_to_string(inode->i_atime));
 770                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 771                         inode->i_mtime, large_inode->i_mtime_extra,
 772                         time_to_string(inode->i_mtime));
 773                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 774                         large_inode->i_crtime, large_inode->i_crtime_extra,
 775                         time_to_string(large_inode->i_crtime));
 776         } else {
 777                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 778                         time_to_string(inode->i_ctime));
 779                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 780                         time_to_string(inode->i_atime));
 781                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 782                         time_to_string(inode->i_mtime));
 783         }
 784         if (inode->i_dtime)
 785           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 786                   time_to_string(inode->i_dtime));
 787         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 788                 internal_dump_inode_extra(out, prefix, inode_num,
 789                                           (struct ext2_inode_large *) inode);
 790         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 791                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 792                         (int) inode->i_size, (char *)inode->i_block);
 793         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 794                 int major, minor;
 795                 const char *devnote;
 796
 797                 if (inode->i_block[0]) {
 798                         major = (inode->i_block[0] >> 8) & 255;
 799                         minor = inode->i_block[0] & 255;
 800                         devnote = "";
 801                 } else {
 802                         major = (inode->i_block[1] & 0xfff00) >> 8;
 803                         minor = ((inode->i_block[1] & 0xff) |
 804                                  ((inode->i_block[1] >> 12) & 0xfff00));
 805                         devnote = "(New-style) ";
 806                 }
 807                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 808                         devnote, major, minor, major, minor);
 809         } else if (do_dump_blocks) {
 810                 if (inode->i_flags & EXT4_EXTENTS_FL)
 811                         dump_extents(out, prefix, inode_num,
 812                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 813                 else
 814                         dump_blocks(out, prefix, inode_num);
 815         }
 816 }
 817
 818 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 819 {
 820         FILE    *out;
 821
 822         out = open_pager();
 823         internal_dump_inode(out, "", inode_num, inode, 1);
 824         close_pager(out);
 825 }
 826
 827 void do_stat(int argc, char *argv[])
 828 {
 829         ext2_ino_t      inode;
 830         struct ext2_inode * inode_buf;
 831
 832         if (check_fs_open(argv[0]))
 833                 return;
 834
 835         inode_buf = (struct ext2_inode *)
 836                         malloc(EXT2_INODE_SIZE(current_fs->super));
 837         if (!inode_buf) {
 838                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 839                 return;
 840         }
 841
 842         if (common_inode_args_process(argc, argv, &inode, 0)) {
 843                 free(inode_buf);
 844                 return;
 845         }
 846
 847         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 848                                         EXT2_INODE_SIZE(current_fs->super))) {
 849                 free(inode_buf);
 850                 return;
 851         }
 852
 853         dump_inode(inode, inode_buf);
 854         free(inode_buf);
 855         return;
 856 }
 857
 858 void do_dump_extents(int argc, char *argv[])
 859 {
 860         struct ext2_inode inode;
 861         ext2_ino_t      ino;
 862         FILE            *out;
 863         int             c, flags = 0;
 864         int             logical_width;
 865         int             physical_width;
 866
 867         reset_getopt();
 868         while ((c = getopt(argc, argv, "nl")) != EOF) {
 869                 switch (c) {
 870                 case 'n':
 871                         flags |= DUMP_NODE_EXTENTS;
 872                         break;
 873                 case 'l':
 874                         flags |= DUMP_LEAF_EXTENTS;
 875                         break;
 876                 }
 877         }
 878
 879         if (argc != optind+1) {
 880         print_usage:
 881                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 882                 return;
 883         }
 884
 885         if (flags == 0)
 886                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 887         flags |= DUMP_EXTENT_TABLE;
 888
 889         if (check_fs_open(argv[0]))
 890                 return;
 891
 892         ino = string_to_inode(argv[optind]);
 893         if (ino == 0)
 894                 return;
 895
 896         if (debugfs_read_inode(ino, &inode, argv[0]))
 897                 return;
 898
 899         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 900                 fprintf(stderr, "%s: does not uses extent block maps\n",
 901                         argv[optind]);
 902                 return;
 903         }
 904
 905         logical_width = int_log10(((inode.i_size |
 906                                     (__u64) inode.i_size_high << 32) +
 907                                    current_fs->blocksize - 1) /
 908                                   current_fs->blocksize) + 1;
 909         if (logical_width < 5)
 910                 logical_width = 5;
 911         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 912         if (physical_width < 5)
 913                 physical_width = 5;
 914
 915         out = open_pager();
 916         dump_extents(out, "", ino, flags, logical_width, physical_width);
 917         close_pager(out);
 918         return;
 919 }
 920
 921 void do_chroot(int argc, char *argv[])
 922 {
 923         ext2_ino_t inode;
 924         int retval;
 925
 926         if (common_inode_args_process(argc, argv, &inode, 0))
 927                 return;
 928
 929         retval = ext2fs_check_directory(current_fs, inode);
 930         if (retval)  {
 931                 com_err(argv[1], retval, 0);
 932                 return;
 933         }
 934         root = inode;
 935 }
 936
 937 void do_clri(int argc, char *argv[])
 938 {
 939         ext2_ino_t inode;
 940         struct ext2_inode inode_buf;
 941
 942         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 943                 return;
 944
 945         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 946                 return;
 947         memset(&inode_buf, 0, sizeof(inode_buf));
 948         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 949                 return;
 950 }
 951
 952 void do_freei(int argc, char *argv[])
 953 {
 954         ext2_ino_t inode;
 955
 956         if (common_inode_args_process(argc, argv, &inode,
 957                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 958                 return;
 959
 960         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 961                 com_err(argv[0], 0, "Warning: inode already clear");
 962         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
 963         ext2fs_mark_ib_dirty(current_fs);
 964 }
 965
 966 void do_seti(int argc, char *argv[])
 967 {
 968         ext2_ino_t inode;
 969
 970         if (common_inode_args_process(argc, argv, &inode,
 971                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 972                 return;
 973
 974         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 975                 com_err(argv[0], 0, "Warning: inode already set");
 976         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
 977         ext2fs_mark_ib_dirty(current_fs);
 978 }
 979
 980 void do_testi(int argc, char *argv[])
 981 {
 982         ext2_ino_t inode;
 983
 984         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
 985                 return;
 986
 987         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 988                 printf("Inode %u is marked in use\n", inode);
 989         else
 990                 printf("Inode %u is not in use\n", inode);
 991 }
 992
 993 void do_freeb(int argc, char *argv[])
 994 {
 995         blk64_t block;
 996         blk64_t count = 1;
 997
 998         if (common_block_args_process(argc, argv, &block, &count))
 999                 return;
1000         if (check_fs_read_write(argv[0]))
1001                 return;
1002         while (count-- > 0) {
1003                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1004                         com_err(argv[0], 0, "Warning: block %llu already clear",
1005                                 block);
1006                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1007                 block++;
1008         }
1009         ext2fs_mark_bb_dirty(current_fs);
1010 }
1011
1012 void do_setb(int argc, char *argv[])
1013 {
1014         blk64_t block;
1015         blk64_t count = 1;
1016
1017         if (common_block_args_process(argc, argv, &block, &count))
1018                 return;
1019         if (check_fs_read_write(argv[0]))
1020                 return;
1021         while (count-- > 0) {
1022                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1023                         com_err(argv[0], 0, "Warning: block %llu already set",
1024                                 block);
1025                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1026                 block++;
1027         }
1028         ext2fs_mark_bb_dirty(current_fs);
1029 }
1030
1031 void do_testb(int argc, char *argv[])
1032 {
1033         blk64_t block;
1034         blk64_t count = 1;
1035
1036         if (common_block_args_process(argc, argv, &block, &count))
1037                 return;
1038         while (count-- > 0) {
1039                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1040                         printf("Block %llu marked in use\n", block);
1041                 else
1042                         printf("Block %llu not in use\n", block);
1043                 block++;
1044         }
1045 }
1046
1047 static void modify_u8(char *com, const char *prompt,
1048                       const char *format, __u8 *val)
1049 {
1050         char buf[200];
1051         unsigned long v;
1052         char *tmp;
1053
1054         sprintf(buf, format, *val);
1055         printf("%30s    [%s] ", prompt, buf);
1056         if (!fgets(buf, sizeof(buf), stdin))
1057                 return;
1058         if (buf[strlen (buf) - 1] == '\n')
1059                 buf[strlen (buf) - 1] = '\0';
1060         if (!buf[0])
1061                 return;
1062         v = strtoul(buf, &tmp, 0);
1063         if (*tmp)
1064                 com_err(com, 0, "Bad value - %s", buf);
1065         else
1066                 *val = v;
1067 }
1068
1069 static void modify_u16(char *com, const char *prompt,
1070                        const char *format, __u16 *val)
1071 {
1072         char buf[200];
1073         unsigned long v;
1074         char *tmp;
1075
1076         sprintf(buf, format, *val);
1077         printf("%30s    [%s] ", prompt, buf);
1078         if (!fgets(buf, sizeof(buf), stdin))
1079                 return;
1080         if (buf[strlen (buf) - 1] == '\n')
1081                 buf[strlen (buf) - 1] = '\0';
1082         if (!buf[0])
1083                 return;
1084         v = strtoul(buf, &tmp, 0);
1085         if (*tmp)
1086                 com_err(com, 0, "Bad value - %s", buf);
1087         else
1088                 *val = v;
1089 }
1090
1091 static void modify_u32(char *com, const char *prompt,
1092                        const char *format, __u32 *val)
1093 {
1094         char buf[200];
1095         unsigned long v;
1096         char *tmp;
1097
1098         sprintf(buf, format, *val);
1099         printf("%30s    [%s] ", prompt, buf);
1100         if (!fgets(buf, sizeof(buf), stdin))
1101                 return;
1102         if (buf[strlen (buf) - 1] == '\n')
1103                 buf[strlen (buf) - 1] = '\0';
1104         if (!buf[0])
1105                 return;
1106         v = strtoul(buf, &tmp, 0);
1107         if (*tmp)
1108                 com_err(com, 0, "Bad value - %s", buf);
1109         else
1110                 *val = v;
1111 }
1112
1113
1114 void do_modify_inode(int argc, char *argv[])
1115 {
1116         struct ext2_inode inode;
1117         ext2_ino_t      inode_num;
1118         int             i;
1119         unsigned char   *frag, *fsize;
1120         char            buf[80];
1121         int             os;
1122         const char      *hex_format = "0x%x";
1123         const char      *octal_format = "0%o";
1124         const char      *decimal_format = "%d";
1125         const char      *unsignedlong_format = "%lu";
1126
1127         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1128                 return;
1129
1130         os = current_fs->super->s_creator_os;
1131
1132         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1133                 return;
1134
1135         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1136         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1137         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1138         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1139         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1140         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1141         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1142         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1143         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1144         if (os == EXT2_OS_LINUX)
1145                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1146                            &inode.osd2.linux2.l_i_blocks_hi);
1147         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1148         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1149         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1150 #if 0
1151         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1152 #endif
1153         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1154         if (LINUX_S_ISDIR(inode.i_mode))
1155                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1156         else
1157                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1158
1159         if (os == EXT2_OS_HURD)
1160                 modify_u32(argv[0], "Translator Block",
1161                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1162
1163         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1164         switch (os) {
1165             case EXT2_OS_HURD:
1166                 frag = &inode.osd2.hurd2.h_i_frag;
1167                 fsize = &inode.osd2.hurd2.h_i_fsize;
1168                 break;
1169             default:
1170                 frag = fsize = 0;
1171         }
1172         if (frag)
1173                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1174         if (fsize)
1175                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1176
1177         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1178                 sprintf(buf, "Direct Block #%d", i);
1179                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1180         }
1181         modify_u32(argv[0], "Indirect Block", decimal_format,
1182                     &inode.i_block[EXT2_IND_BLOCK]);
1183         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1184                     &inode.i_block[EXT2_DIND_BLOCK]);
1185         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1186                     &inode.i_block[EXT2_TIND_BLOCK]);
1187         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1188                 return;
1189 }
1190
1191 void do_change_working_dir(int argc, char *argv[])
1192 {
1193         ext2_ino_t      inode;
1194         int             retval;
1195
1196         if (common_inode_args_process(argc, argv, &inode, 0))
1197                 return;
1198
1199         retval = ext2fs_check_directory(current_fs, inode);
1200         if (retval) {
1201                 com_err(argv[1], retval, 0);
1202                 return;
1203         }
1204         cwd = inode;
1205         return;
1206 }
1207
1208 void do_print_working_directory(int argc, char *argv[])
1209 {
1210         int     retval;
1211         char    *pathname = NULL;
1212
1213         if (common_args_process(argc, argv, 1, 1,
1214                                 "print_working_directory", "", 0))
1215                 return;
1216
1217         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1218         if (retval) {
1219                 com_err(argv[0], retval,
1220                         "while trying to get pathname of cwd");
1221         }
1222         printf("[pwd]   INODE: %6u  PATH: %s\n",
1223                cwd, pathname ? pathname : "NULL");
1224         if (pathname) {
1225                 free(pathname);
1226                 pathname = NULL;
1227         }
1228         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1229         if (retval) {
1230                 com_err(argv[0], retval,
1231                         "while trying to get pathname of root");
1232         }
1233         printf("[root]  INODE: %6u  PATH: %s\n",
1234                root, pathname ? pathname : "NULL");
1235         if (pathname) {
1236                 free(pathname);
1237                 pathname = NULL;
1238         }
1239         return;
1240 }
1241
1242 /*
1243  * Given a mode, return the ext2 file type
1244  */
1245 static int ext2_file_type(unsigned int mode)
1246 {
1247         if (LINUX_S_ISREG(mode))
1248                 return EXT2_FT_REG_FILE;
1249
1250         if (LINUX_S_ISDIR(mode))
1251                 return EXT2_FT_DIR;
1252
1253         if (LINUX_S_ISCHR(mode))
1254                 return EXT2_FT_CHRDEV;
1255
1256         if (LINUX_S_ISBLK(mode))
1257                 return EXT2_FT_BLKDEV;
1258
1259         if (LINUX_S_ISLNK(mode))
1260                 return EXT2_FT_SYMLINK;
1261
1262         if (LINUX_S_ISFIFO(mode))
1263                 return EXT2_FT_FIFO;
1264
1265         if (LINUX_S_ISSOCK(mode))
1266                 return EXT2_FT_SOCK;
1267
1268         return 0;
1269 }
1270
1271 static void make_link(char *sourcename, char *destname)
1272 {
1273         ext2_ino_t      ino;
1274         struct ext2_inode inode;
1275         int             retval;
1276         ext2_ino_t      dir;
1277         char            *dest, *cp, *base_name;
1278
1279         /*
1280          * Get the source inode
1281          */
1282         ino = string_to_inode(sourcename);
1283         if (!ino)
1284                 return;
1285         base_name = strrchr(sourcename, '/');
1286         if (base_name)
1287                 base_name++;
1288         else
1289                 base_name = sourcename;
1290         /*
1291          * Figure out the destination.  First see if it exists and is
1292          * a directory.
1293          */
1294         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1295                 dest = base_name;
1296         else {
1297                 /*
1298                  * OK, it doesn't exist.  See if it is
1299                  * '<dir>/basename' or 'basename'
1300                  */
1301                 cp = strrchr(destname, '/');
1302                 if (cp) {
1303                         *cp = 0;
1304                         dir = string_to_inode(destname);
1305                         if (!dir)
1306                                 return;
1307                         dest = cp+1;
1308                 } else {
1309                         dir = cwd;
1310                         dest = destname;
1311                 }
1312         }
1313
1314         if (debugfs_read_inode(ino, &inode, sourcename))
1315                 return;
1316
1317         retval = ext2fs_link(current_fs, dir, dest, ino,
1318                              ext2_file_type(inode.i_mode));
1319         if (retval)
1320                 com_err("make_link", retval, 0);
1321         return;
1322 }
1323
1324
1325 void do_link(int argc, char *argv[])
1326 {
1327         if (common_args_process(argc, argv, 3, 3, "link",
1328                                 "<source file> <dest_name>", CHECK_FS_RW))
1329                 return;
1330
1331         make_link(argv[1], argv[2]);
1332 }
1333
1334 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1335                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1336                             blk64_t ref_block EXT2FS_ATTR((unused)),
1337                             int ref_offset EXT2FS_ATTR((unused)),
1338                             void *private EXT2FS_ATTR((unused)))
1339 {
1340         blk64_t block;
1341
1342         block = *blocknr;
1343         ext2fs_block_alloc_stats2(fs, block, +1);
1344         return 0;
1345 }
1346
1347 void do_undel(int argc, char *argv[])
1348 {
1349         ext2_ino_t      ino;
1350         struct ext2_inode inode;
1351
1352         if (common_args_process(argc, argv, 2, 3, "undelete",
1353                                 "<inode_num> [dest_name]",
1354                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1355                 return;
1356
1357         ino = string_to_inode(argv[1]);
1358         if (!ino)
1359                 return;
1360
1361         if (debugfs_read_inode(ino, &inode, argv[1]))
1362                 return;
1363
1364         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1365                 com_err(argv[1], 0, "Inode is not marked as deleted");
1366                 return;
1367         }
1368
1369         /*
1370          * XXX this function doesn't handle changing the links count on the
1371          * parent directory when undeleting a directory.
1372          */
1373         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1374         inode.i_dtime = 0;
1375
1376         if (debugfs_write_inode(ino, &inode, argv[0]))
1377                 return;
1378
1379         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1380                               mark_blocks_proc, NULL);
1381
1382         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1383
1384         if (argc > 2)
1385                 make_link(argv[1], argv[2]);
1386 }
1387
1388 static void unlink_file_by_name(char *filename)
1389 {
1390         int             retval;
1391         ext2_ino_t      dir;
1392         char            *base_name;
1393
1394         base_name = strrchr(filename, '/');
1395         if (base_name) {
1396                 *base_name++ = '\0';
1397                 dir = string_to_inode(filename);
1398                 if (!dir)
1399                         return;
1400         } else {
1401                 dir = cwd;
1402                 base_name = filename;
1403         }
1404         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1405         if (retval)
1406                 com_err("unlink_file_by_name", retval, 0);
1407         return;
1408 }
1409
1410 void do_unlink(int argc, char *argv[])
1411 {
1412         if (common_args_process(argc, argv, 2, 2, "link",
1413                                 "<pathname>", CHECK_FS_RW))
1414                 return;
1415
1416         unlink_file_by_name(argv[1]);
1417 }
1418
1419 void do_find_free_block(int argc, char *argv[])
1420 {
1421         blk64_t free_blk, goal, first_free = 0;
1422         int             count;
1423         errcode_t       retval;
1424         char            *tmp;
1425
1426         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1427                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1428                 return;
1429         }
1430         if (check_fs_open(argv[0]))
1431                 return;
1432
1433         if (argc > 1) {
1434                 count = strtol(argv[1],&tmp,0);
1435                 if (*tmp) {
1436                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1437                         return;
1438                 }
1439         } else
1440                 count = 1;
1441
1442         if (argc > 2) {
1443                 goal = strtol(argv[2], &tmp, 0);
1444                 if (*tmp) {
1445                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1446                         return;
1447                 }
1448         }
1449         else
1450                 goal = current_fs->super->s_first_data_block;
1451
1452         printf("Free blocks found: ");
1453         free_blk = goal - 1;
1454         while (count-- > 0) {
1455                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1456                                            &free_blk);
1457                 if (first_free) {
1458                         if (first_free == free_blk)
1459                                 break;
1460                 } else
1461                         first_free = free_blk;
1462                 if (retval) {
1463                         com_err("ext2fs_new_block", retval, 0);
1464                         return;
1465                 } else
1466                         printf("%llu ", free_blk);
1467         }
1468         printf("\n");
1469 }
1470
1471 void do_find_free_inode(int argc, char *argv[])
1472 {
1473         ext2_ino_t      free_inode, dir;
1474         int             mode;
1475         int             retval;
1476         char            *tmp;
1477
1478         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1479                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1480                 return;
1481         }
1482         if (check_fs_open(argv[0]))
1483                 return;
1484
1485         if (argc > 1) {
1486                 dir = strtol(argv[1], &tmp, 0);
1487                 if (*tmp) {
1488                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1489                         return;
1490                 }
1491         }
1492         else
1493                 dir = root;
1494         if (argc > 2) {
1495                 mode = strtol(argv[2], &tmp, 0);
1496                 if (*tmp) {
1497                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1498                         return;
1499                 }
1500         } else
1501                 mode = 010755;
1502
1503         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1504         if (retval)
1505                 com_err("ext2fs_new_inode", retval, 0);
1506         else
1507                 printf("Free inode found: %u\n", free_inode);
1508 }
1509
1510 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1511 {
1512         ext2_file_t     e2_file;
1513         errcode_t       retval;
1514         int             got;
1515         unsigned int    written;
1516         char            buf[8192];
1517         char            *ptr;
1518
1519         retval = ext2fs_file_open(current_fs, newfile,
1520                                   EXT2_FILE_WRITE, &e2_file);
1521         if (retval)
1522                 return retval;
1523
1524         while (1) {
1525                 got = read(fd, buf, sizeof(buf));
1526                 if (got == 0)
1527                         break;
1528                 if (got < 0) {
1529                         retval = errno;
1530                         goto fail;
1531                 }
1532                 ptr = buf;
1533                 while (got > 0) {
1534                         retval = ext2fs_file_write(e2_file, ptr,
1535                                                    got, &written);
1536                         if (retval)
1537                                 goto fail;
1538
1539                         got -= written;
1540                         ptr += written;
1541                 }
1542         }
1543         retval = ext2fs_file_close(e2_file);
1544         return retval;
1545
1546 fail:
1547         (void) ext2fs_file_close(e2_file);
1548         return retval;
1549 }
1550
1551
1552 void do_write(int argc, char *argv[])
1553 {
1554         int             fd;
1555         struct stat     statbuf;
1556         ext2_ino_t      newfile;
1557         errcode_t       retval;
1558         struct ext2_inode inode;
1559
1560         if (common_args_process(argc, argv, 3, 3, "write",
1561                                 "<native file> <new file>", CHECK_FS_RW))
1562                 return;
1563
1564         fd = open(argv[1], O_RDONLY);
1565         if (fd < 0) {
1566                 com_err(argv[1], errno, 0);
1567                 return;
1568         }
1569         if (fstat(fd, &statbuf) < 0) {
1570                 com_err(argv[1], errno, 0);
1571                 close(fd);
1572                 return;
1573         }
1574
1575         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1576         if (retval == 0) {
1577                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1578                 close(fd);
1579                 return;
1580         }
1581
1582         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1583         if (retval) {
1584                 com_err(argv[0], retval, 0);
1585                 close(fd);
1586                 return;
1587         }
1588         printf("Allocated inode: %u\n", newfile);
1589         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1590                              EXT2_FT_REG_FILE);
1591         if (retval == EXT2_ET_DIR_NO_SPACE) {
1592                 retval = ext2fs_expand_dir(current_fs, cwd);
1593                 if (retval) {
1594                         com_err(argv[0], retval, "while expanding directory");
1595                         close(fd);
1596                         return;
1597                 }
1598                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1599                                      EXT2_FT_REG_FILE);
1600         }
1601         if (retval) {
1602                 com_err(argv[2], retval, 0);
1603                 close(fd);
1604                 return;
1605         }
1606         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1607                 com_err(argv[0], 0, "Warning: inode already set");
1608         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1609         memset(&inode, 0, sizeof(inode));
1610         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1611         inode.i_atime = inode.i_ctime = inode.i_mtime =
1612                 current_fs->now ? current_fs->now : time(0);
1613         inode.i_links_count = 1;
1614         inode.i_size = statbuf.st_size;
1615         if (current_fs->super->s_feature_incompat &
1616             EXT3_FEATURE_INCOMPAT_EXTENTS)
1617                 inode.i_flags |= EXT4_EXTENTS_FL;
1618         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1619                 close(fd);
1620                 return;
1621         }
1622         if (LINUX_S_ISREG(inode.i_mode)) {
1623                 retval = copy_file(fd, newfile);
1624                 if (retval)
1625                         com_err("copy_file", retval, 0);
1626         }
1627         close(fd);
1628 }
1629
1630 void do_mknod(int argc, char *argv[])
1631 {
1632         unsigned long   mode, major, minor;
1633         ext2_ino_t      newfile;
1634         errcode_t       retval;
1635         struct ext2_inode inode;
1636         int             filetype, nr;
1637
1638         if (check_fs_open(argv[0]))
1639                 return;
1640         if (argc < 3 || argv[2][1]) {
1641         usage:
1642                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1643                 return;
1644         }
1645         mode = minor = major = 0;
1646         switch (argv[2][0]) {
1647                 case 'p':
1648                         mode = LINUX_S_IFIFO;
1649                         filetype = EXT2_FT_FIFO;
1650                         nr = 3;
1651                         break;
1652                 case 'c':
1653                         mode = LINUX_S_IFCHR;
1654                         filetype = EXT2_FT_CHRDEV;
1655                         nr = 5;
1656                         break;
1657                 case 'b':
1658                         mode = LINUX_S_IFBLK;
1659                         filetype = EXT2_FT_BLKDEV;
1660                         nr = 5;
1661                         break;
1662                 default:
1663                         filetype = 0;
1664                         nr = 0;
1665         }
1666         if (nr == 5) {
1667                 major = strtoul(argv[3], argv+3, 0);
1668                 minor = strtoul(argv[4], argv+4, 0);
1669                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1670                         nr = 0;
1671         }
1672         if (argc != nr)
1673                 goto usage;
1674         if (check_fs_read_write(argv[0]))
1675                 return;
1676         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1677         if (retval) {
1678                 com_err(argv[0], retval, 0);
1679                 return;
1680         }
1681         printf("Allocated inode: %u\n", newfile);
1682         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1683         if (retval == EXT2_ET_DIR_NO_SPACE) {
1684                 retval = ext2fs_expand_dir(current_fs, cwd);
1685                 if (retval) {
1686                         com_err(argv[0], retval, "while expanding directory");
1687                         return;
1688                 }
1689                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1690                                      filetype);
1691         }
1692         if (retval) {
1693                 com_err(argv[1], retval, 0);
1694                 return;
1695         }
1696         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1697                 com_err(argv[0], 0, "Warning: inode already set");
1698         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1699         ext2fs_mark_ib_dirty(current_fs);
1700         memset(&inode, 0, sizeof(inode));
1701         inode.i_mode = mode;
1702         inode.i_atime = inode.i_ctime = inode.i_mtime =
1703                 current_fs->now ? current_fs->now : time(0);
1704         if ((major < 256) && (minor < 256)) {
1705                 inode.i_block[0] = major*256+minor;
1706                 inode.i_block[1] = 0;
1707         } else {
1708                 inode.i_block[0] = 0;
1709                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1710         }
1711         inode.i_links_count = 1;
1712         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1713                 return;
1714 }
1715
1716 void do_mkdir(int argc, char *argv[])
1717 {
1718         char    *cp;
1719         ext2_ino_t      parent;
1720         char    *name;
1721         errcode_t retval;
1722
1723         if (common_args_process(argc, argv, 2, 2, "mkdir",
1724                                 "<filename>", CHECK_FS_RW))
1725                 return;
1726
1727         cp = strrchr(argv[1], '/');
1728         if (cp) {
1729                 *cp = 0;
1730                 parent = string_to_inode(argv[1]);
1731                 if (!parent) {
1732                         com_err(argv[1], ENOENT, 0);
1733                         return;
1734                 }
1735                 name = cp+1;
1736         } else {
1737                 parent = cwd;
1738                 name = argv[1];
1739         }
1740
1741 try_again:
1742         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1743         if (retval == EXT2_ET_DIR_NO_SPACE) {
1744                 retval = ext2fs_expand_dir(current_fs, parent);
1745                 if (retval) {
1746                         com_err(argv[0], retval, "while expanding directory");
1747                         return;
1748                 }
1749                 goto try_again;
1750         }
1751         if (retval) {
1752                 com_err("ext2fs_mkdir", retval, 0);
1753                 return;
1754         }
1755
1756 }
1757
1758 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1759                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1760                                blk64_t ref_block EXT2FS_ATTR((unused)),
1761                                int ref_offset EXT2FS_ATTR((unused)),
1762                                void *private EXT2FS_ATTR((unused)))
1763 {
1764         blk64_t block;
1765
1766         block = *blocknr;
1767         ext2fs_block_alloc_stats2(fs, block, -1);
1768         return 0;
1769 }
1770
1771 static void kill_file_by_inode(ext2_ino_t inode)
1772 {
1773         struct ext2_inode inode_buf;
1774
1775         if (debugfs_read_inode(inode, &inode_buf, 0))
1776                 return;
1777         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1778         if (debugfs_write_inode(inode, &inode_buf, 0))
1779                 return;
1780         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1781                 return;
1782
1783         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1784                               release_blocks_proc, NULL);
1785         printf("\n");
1786         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1787                                   LINUX_S_ISDIR(inode_buf.i_mode));
1788 }
1789
1790
1791 void do_kill_file(int argc, char *argv[])
1792 {
1793         ext2_ino_t inode_num;
1794
1795         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1796                 return;
1797
1798         kill_file_by_inode(inode_num);
1799 }
1800
1801 void do_rm(int argc, char *argv[])
1802 {
1803         int retval;
1804         ext2_ino_t inode_num;
1805         struct ext2_inode inode;
1806
1807         if (common_args_process(argc, argv, 2, 2, "rm",
1808                                 "<filename>", CHECK_FS_RW))
1809                 return;
1810
1811         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1812         if (retval) {
1813                 com_err(argv[0], retval, "while trying to resolve filename");
1814                 return;
1815         }
1816
1817         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1818                 return;
1819
1820         if (LINUX_S_ISDIR(inode.i_mode)) {
1821                 com_err(argv[0], 0, "file is a directory");
1822                 return;
1823         }
1824
1825         --inode.i_links_count;
1826         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1827                 return;
1828
1829         unlink_file_by_name(argv[1]);
1830         if (inode.i_links_count == 0)
1831                 kill_file_by_inode(inode_num);
1832 }
1833
1834 struct rd_struct {
1835         ext2_ino_t      parent;
1836         int             empty;
1837 };
1838
1839 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1840                       int       entry EXT2FS_ATTR((unused)),
1841                       struct ext2_dir_entry *dirent,
1842                       int       offset EXT2FS_ATTR((unused)),
1843                       int       blocksize EXT2FS_ATTR((unused)),
1844                       char      *buf EXT2FS_ATTR((unused)),
1845                       void      *private)
1846 {
1847         struct rd_struct *rds = (struct rd_struct *) private;
1848
1849         if (dirent->inode == 0)
1850                 return 0;
1851         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1852                 return 0;
1853         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1854             (dirent->name[1] == '.')) {
1855                 rds->parent = dirent->inode;
1856                 return 0;
1857         }
1858         rds->empty = 0;
1859         return 0;
1860 }
1861
1862 void do_rmdir(int argc, char *argv[])
1863 {
1864         int retval;
1865         ext2_ino_t inode_num;
1866         struct ext2_inode inode;
1867         struct rd_struct rds;
1868
1869         if (common_args_process(argc, argv, 2, 2, "rmdir",
1870                                 "<filename>", CHECK_FS_RW))
1871                 return;
1872
1873         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1874         if (retval) {
1875                 com_err(argv[0], retval, "while trying to resolve filename");
1876                 return;
1877         }
1878
1879         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1880                 return;
1881
1882         if (!LINUX_S_ISDIR(inode.i_mode)) {
1883                 com_err(argv[0], 0, "file is not a directory");
1884                 return;
1885         }
1886
1887         rds.parent = 0;
1888         rds.empty = 1;
1889
1890         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1891                                     0, rmdir_proc, &rds);
1892         if (retval) {
1893                 com_err(argv[0], retval, "while iterating over directory");
1894                 return;
1895         }
1896         if (rds.empty == 0) {
1897                 com_err(argv[0], 0, "directory not empty");
1898                 return;
1899         }
1900
1901         inode.i_links_count = 0;
1902         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1903                 return;
1904
1905         unlink_file_by_name(argv[1]);
1906         kill_file_by_inode(inode_num);
1907
1908         if (rds.parent) {
1909                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1910                         return;
1911                 if (inode.i_links_count > 1)
1912                         inode.i_links_count--;
1913                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1914                         return;
1915         }
1916 }
1917
1918 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1919                             char *argv[] EXT2FS_ATTR((unused)))
1920 {
1921         FILE *out = stdout;
1922
1923         if (current_fs)
1924                 fprintf(out, "Open mode: read-%s\n",
1925                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1926         fprintf(out, "Filesystem in use: %s\n",
1927                 current_fs ? current_fs->device_name : "--none--");
1928 }
1929
1930 void do_expand_dir(int argc, char *argv[])
1931 {
1932         ext2_ino_t inode;
1933         int retval;
1934
1935         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1936                 return;
1937
1938         retval = ext2fs_expand_dir(current_fs, inode);
1939         if (retval)
1940                 com_err("ext2fs_expand_dir", retval, 0);
1941         return;
1942 }
1943
1944 void do_features(int argc, char *argv[])
1945 {
1946         int     i;
1947
1948         if (check_fs_open(argv[0]))
1949                 return;
1950
1951         if ((argc != 1) && check_fs_read_write(argv[0]))
1952                 return;
1953         for (i=1; i < argc; i++) {
1954                 if (e2p_edit_feature(argv[i],
1955                                      &current_fs->super->s_feature_compat, 0))
1956                         com_err(argv[0], 0, "Unknown feature: %s\n",
1957                                 argv[i]);
1958                 else
1959                         ext2fs_mark_super_dirty(current_fs);
1960         }
1961         print_features(current_fs->super, stdout);
1962 }
1963
1964 void do_bmap(int argc, char *argv[])
1965 {
1966         ext2_ino_t      ino;
1967         blk64_t         blk, pblk;
1968         int             err;
1969         errcode_t       errcode;
1970
1971         if (common_args_process(argc, argv, 3, 3, argv[0],
1972                                 "<file> logical_blk", 0))
1973                 return;
1974
1975         ino = string_to_inode(argv[1]);
1976         if (!ino)
1977                 return;
1978         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1979
1980         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1981         if (errcode) {
1982                 com_err("argv[0]", errcode,
1983                         "while mapping logical block %llu\n", blk);
1984                 return;
1985         }
1986         printf("%llu\n", pblk);
1987 }
1988
1989 void do_imap(int argc, char *argv[])
1990 {
1991         ext2_ino_t      ino;
1992         unsigned long   group, block, block_nr, offset;
1993
1994         if (common_args_process(argc, argv, 2, 2, argv[0],
1995                                 "<file>", 0))
1996                 return;
1997         ino = string_to_inode(argv[1]);
1998         if (!ino)
1999                 return;
2000
2001         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2002         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2003                 EXT2_INODE_SIZE(current_fs->super);
2004         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2005         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2006                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2007                         group);
2008                 return;
2009         }
2010         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2011                 block;
2012         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2013
2014         printf("Inode %d is part of block group %lu\n"
2015                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2016                block_nr, offset);
2017
2018 }
2019
2020 void do_set_current_time(int argc, char *argv[])
2021 {
2022         time_t now;
2023
2024         if (common_args_process(argc, argv, 2, 2, argv[0],
2025                                 "<time>", 0))
2026                 return;
2027
2028         now = string_to_time(argv[1]);
2029         if (now == ((time_t) -1)) {
2030                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2031                         argv[1]);
2032                 return;
2033
2034         } else {
2035                 printf("Setting current time to %s\n", time_to_string(now));
2036                 current_fs->now = now;
2037         }
2038 }
2039
2040 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2041 {
2042         int compat, bit, ret;
2043         unsigned int feature_mask;
2044
2045         if (name) {
2046                 if (feature_type == E2P_FS_FEATURE)
2047                         ret = e2p_string2feature(name, &compat, &feature_mask);
2048                 else
2049                         ret = e2p_jrnl_string2feature(name, &compat,
2050                                                       &feature_mask);
2051                 if (ret)
2052                         return ret;
2053
2054                 if (!(supp[compat] & feature_mask))
2055                         return 1;
2056         } else {
2057                 for (compat = 0; compat < 3; compat++) {
2058                         for (bit = 0, feature_mask = 1; bit < 32;
2059                              bit++, feature_mask <<= 1) {
2060                                 if (supp[compat] & feature_mask) {
2061                                         if (feature_type == E2P_FS_FEATURE)
2062                                                 fprintf(stdout, " %s",
2063                                                 e2p_feature2string(compat,
2064                                                 feature_mask));
2065                                         else
2066                                                 fprintf(stdout, " %s",
2067                                                 e2p_jrnl_feature2string(compat,
2068                                                 feature_mask));
2069                                 }
2070                         }
2071                 }
2072                 fprintf(stdout, "\n");
2073         }
2074
2075         return 0;
2076 }
2077
2078 void do_supported_features(int argc, char *argv[])
2079 {
2080         int     ret;
2081         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2082                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2083                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2084         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2085                                  JFS_KNOWN_INCOMPAT_FEATURES,
2086                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2087
2088         if (argc > 1) {
2089                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2090                 if (ret) {
2091                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2092                                                 argv[1]);
2093                 }
2094                 if (ret)
2095                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2096                 else
2097                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2098         } else {
2099                 fprintf(stdout, "Supported features:");
2100                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2101                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2102         }
2103 }
2104
2105 void do_punch(int argc, char *argv[])
2106 {
2107         ext2_ino_t      ino;
2108         blk64_t         start, end;
2109         int             err;
2110         errcode_t       errcode;
2111
2112         if (common_args_process(argc, argv, 3, 4, argv[0],
2113                                 "<file> start_blk [end_blk]",
2114                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2115                 return;
2116
2117         ino = string_to_inode(argv[1]);
2118         if (!ino)
2119                 return;
2120         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2121         if (argc == 4)
2122                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2123         else
2124                 end = ~0;
2125
2126         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2127
2128         if (errcode) {
2129                 com_err(argv[0], errcode,
2130                         "while truncating inode %u from %llu to %llu\n", ino,
2131                         (unsigned long long) start, (unsigned long long) end);
2132                 return;
2133         }
2134 }
2135
2136 static int source_file(const char *cmd_file, int sci_idx)
2137 {
2138         FILE            *f;
2139         char            buf[256];
2140         char            *cp;
2141         int             exit_status = 0;
2142         int             retval;
2143
2144         if (strcmp(cmd_file, "-") == 0)
2145                 f = stdin;
2146         else {
2147                 f = fopen(cmd_file, "r");
2148                 if (!f) {
2149                         perror(cmd_file);
2150                         exit(1);
2151                 }
2152         }
2153         fflush(stdout);
2154         fflush(stderr);
2155         setbuf(stdout, NULL);
2156         setbuf(stderr, NULL);
2157         while (!feof(f)) {
2158                 if (fgets(buf, sizeof(buf), f) == NULL)
2159                         break;
2160                 cp = strchr(buf, '\n');
2161                 if (cp)
2162                         *cp = 0;
2163                 cp = strchr(buf, '\r');
2164                 if (cp)
2165                         *cp = 0;
2166                 printf("debugfs: %s\n", buf);
2167                 retval = ss_execute_line(sci_idx, buf);
2168                 if (retval) {
2169                         ss_perror(sci_idx, retval, buf);
2170                         exit_status++;
2171                 }
2172         }
2173         if (f != stdin)
2174                 fclose(f);
2175         return exit_status;
2176 }
2177
2178 int main(int argc, char **argv)
2179 {
2180         int             retval;
2181         int             sci_idx;
2182         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2183         int             c;
2184         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2185         char            *request = 0;
2186         int             exit_status = 0;
2187         char            *cmd_file = 0;
2188         blk64_t         superblock = 0;
2189         blk64_t         blocksize = 0;
2190         int             catastrophic = 0;
2191         char            *data_filename = 0;
2192
2193         if (debug_prog_name == 0)
2194                 debug_prog_name = "debugfs";
2195
2196         add_error_table(&et_ext2_error_table);
2197         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2198                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2199
2200         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2201                 switch (c) {
2202                 case 'R':
2203                         request = optarg;
2204                         break;
2205                 case 'f':
2206                         cmd_file = optarg;
2207                         break;
2208                 case 'd':
2209                         data_filename = optarg;
2210                         break;
2211                 case 'i':
2212                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2213                         break;
2214                 case 'w':
2215                         open_flags |= EXT2_FLAG_RW;
2216                         break;
2217                 case 'D':
2218                         open_flags |= EXT2_FLAG_DIRECT_IO;
2219                         break;
2220                 case 'b':
2221                         blocksize = parse_ulong(optarg, argv[0],
2222                                                 "block size", 0);
2223                         break;
2224                 case 's':
2225                         superblock = parse_ulong(optarg, argv[0],
2226                                                  "superblock number", 0);
2227                         break;
2228                 case 'c':
2229                         catastrophic = 1;
2230                         break;
2231                 case 'V':
2232                         /* Print version number and exit */
2233                         fprintf(stderr, "\tUsing %s\n",
2234                                 error_message(EXT2_ET_BASE));
2235                         exit(0);
2236                 default:
2237                         com_err(argv[0], 0, usage, debug_prog_name);
2238                         return 1;
2239                 }
2240         }
2241         if (optind < argc)
2242                 open_filesystem(argv[optind], open_flags,
2243                                 superblock, blocksize, catastrophic,
2244                                 data_filename);
2245
2246         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2247                                        &debug_cmds, &retval);
2248         if (retval) {
2249                 ss_perror(sci_idx, retval, "creating invocation");
2250                 exit(1);
2251         }
2252         ss_get_readline(sci_idx);
2253
2254         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2255         if (retval) {
2256                 ss_perror(sci_idx, retval, "adding standard requests");
2257                 exit (1);
2258         }
2259         if (extra_cmds)
2260                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2261         if (retval) {
2262                 ss_perror(sci_idx, retval, "adding extra requests");
2263                 exit (1);
2264         }
2265         if (request) {
2266                 retval = 0;
2267                 retval = ss_execute_line(sci_idx, request);
2268                 if (retval) {
2269                         ss_perror(sci_idx, retval, request);
2270                         exit_status++;
2271                 }
2272         } else if (cmd_file) {
2273                 exit_status = source_file(cmd_file, sci_idx);
2274         } else {
2275                 ss_listen(sci_idx);
2276         }
2277
2278         ss_delete_invocation(sci_idx);
2279
2280         if (current_fs)
2281                 close_filesystem();
2282
2283         remove_error_table(&et_ext2_error_table);
2284         return exit_status;
2285 }