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                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 727         else
 728                 fprintf(out, "%d\n", inode->i_size);
 729         if (os == EXT2_OS_HURD)
 730                 fprintf(out,
 731                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 732                         prefix,
 733                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 734                         inode->osd1.hurd1.h_i_translator);
 735         else
 736                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 737                         prefix,
 738                         inode->i_file_acl | ((long long)
 739                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 740                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 741         if (os == EXT2_OS_LINUX)
 742                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 743                         prefix, inode->i_links_count,
 744                         (((unsigned long long)
 745                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 746                         inode->i_blocks);
 747         else
 748                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 749                         prefix, inode->i_links_count, inode->i_blocks);
 750         switch (os) {
 751             case EXT2_OS_HURD:
 752                 frag = inode->osd2.hurd2.h_i_frag;
 753                 fsize = inode->osd2.hurd2.h_i_fsize;
 754                 break;
 755             default:
 756                 frag = fsize = 0;
 757         }
 758         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 759                 prefix, inode->i_faddr, frag, fsize);
 760         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 761                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 762                         inode->i_ctime, large_inode->i_ctime_extra,
 763                         time_to_string(inode->i_ctime));
 764                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 765                         inode->i_atime, large_inode->i_atime_extra,
 766                         time_to_string(inode->i_atime));
 767                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 768                         inode->i_mtime, large_inode->i_mtime_extra,
 769                         time_to_string(inode->i_mtime));
 770                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 771                         large_inode->i_crtime, large_inode->i_crtime_extra,
 772                         time_to_string(large_inode->i_crtime));
 773         } else {
 774                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 775                         time_to_string(inode->i_ctime));
 776                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 777                         time_to_string(inode->i_atime));
 778                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 779                         time_to_string(inode->i_mtime));
 780         }
 781         if (inode->i_dtime)
 782           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 783                   time_to_string(inode->i_dtime));
 784         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 785                 internal_dump_inode_extra(out, prefix, inode_num,
 786                                           (struct ext2_inode_large *) inode);
 787         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 788                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 789                         (int) inode->i_size, (char *)inode->i_block);
 790         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 791                 int major, minor;
 792                 const char *devnote;
 793
 794                 if (inode->i_block[0]) {
 795                         major = (inode->i_block[0] >> 8) & 255;
 796                         minor = inode->i_block[0] & 255;
 797                         devnote = "";
 798                 } else {
 799                         major = (inode->i_block[1] & 0xfff00) >> 8;
 800                         minor = ((inode->i_block[1] & 0xff) |
 801                                  ((inode->i_block[1] >> 12) & 0xfff00));
 802                         devnote = "(New-style) ";
 803                 }
 804                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 805                         devnote, major, minor, major, minor);
 806         } else if (do_dump_blocks) {
 807                 if (inode->i_flags & EXT4_EXTENTS_FL)
 808                         dump_extents(out, prefix, inode_num,
 809                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 810                 else
 811                         dump_blocks(out, prefix, inode_num);
 812         }
 813 }
 814
 815 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 816 {
 817         FILE    *out;
 818
 819         out = open_pager();
 820         internal_dump_inode(out, "", inode_num, inode, 1);
 821         close_pager(out);
 822 }
 823
 824 void do_stat(int argc, char *argv[])
 825 {
 826         ext2_ino_t      inode;
 827         struct ext2_inode * inode_buf;
 828
 829         if (check_fs_open(argv[0]))
 830                 return;
 831
 832         inode_buf = (struct ext2_inode *)
 833                         malloc(EXT2_INODE_SIZE(current_fs->super));
 834         if (!inode_buf) {
 835                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 836                 return;
 837         }
 838
 839         if (common_inode_args_process(argc, argv, &inode, 0)) {
 840                 free(inode_buf);
 841                 return;
 842         }
 843
 844         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 845                                         EXT2_INODE_SIZE(current_fs->super))) {
 846                 free(inode_buf);
 847                 return;
 848         }
 849
 850         dump_inode(inode, inode_buf);
 851         free(inode_buf);
 852         return;
 853 }
 854
 855 void do_dump_extents(int argc, char **argv)
 856 {
 857         struct ext2_inode inode;
 858         ext2_ino_t      ino;
 859         FILE            *out;
 860         int             c, flags = 0;
 861         int             logical_width;
 862         int             physical_width;
 863
 864         reset_getopt();
 865         while ((c = getopt(argc, argv, "nl")) != EOF) {
 866                 switch (c) {
 867                 case 'n':
 868                         flags |= DUMP_NODE_EXTENTS;
 869                         break;
 870                 case 'l':
 871                         flags |= DUMP_LEAF_EXTENTS;
 872                         break;
 873                 }
 874         }
 875
 876         if (argc != optind + 1) {
 877                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 878                 return;
 879         }
 880
 881         if (flags == 0)
 882                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 883         flags |= DUMP_EXTENT_TABLE;
 884
 885         if (check_fs_open(argv[0]))
 886                 return;
 887
 888         ino = string_to_inode(argv[optind]);
 889         if (ino == 0)
 890                 return;
 891
 892         if (debugfs_read_inode(ino, &inode, argv[0]))
 893                 return;
 894
 895         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 896                 fprintf(stderr, "%s: does not uses extent block maps\n",
 897                         argv[optind]);
 898                 return;
 899         }
 900
 901         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 902                                   current_fs->blocksize) + 1;
 903         if (logical_width < 5)
 904                 logical_width = 5;
 905         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 906         if (physical_width < 5)
 907                 physical_width = 5;
 908
 909         out = open_pager();
 910         dump_extents(out, "", ino, flags, logical_width, physical_width);
 911         close_pager(out);
 912         return;
 913 }
 914
 915 void do_chroot(int argc, char *argv[])
 916 {
 917         ext2_ino_t inode;
 918         int retval;
 919
 920         if (common_inode_args_process(argc, argv, &inode, 0))
 921                 return;
 922
 923         retval = ext2fs_check_directory(current_fs, inode);
 924         if (retval)  {
 925                 com_err(argv[1], retval, 0);
 926                 return;
 927         }
 928         root = inode;
 929 }
 930
 931 void do_clri(int argc, char *argv[])
 932 {
 933         ext2_ino_t inode;
 934         struct ext2_inode inode_buf;
 935
 936         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 937                 return;
 938
 939         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 940                 return;
 941         memset(&inode_buf, 0, sizeof(inode_buf));
 942         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 943                 return;
 944 }
 945
 946 void do_freei(int argc, char *argv[])
 947 {
 948         ext2_ino_t inode;
 949
 950         if (common_inode_args_process(argc, argv, &inode,
 951                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 952                 return;
 953
 954         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 955                 com_err(argv[0], 0, "Warning: inode already clear");
 956         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
 957         ext2fs_mark_ib_dirty(current_fs);
 958 }
 959
 960 void do_seti(int argc, char *argv[])
 961 {
 962         ext2_ino_t inode;
 963
 964         if (common_inode_args_process(argc, argv, &inode,
 965                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 966                 return;
 967
 968         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 969                 com_err(argv[0], 0, "Warning: inode already set");
 970         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
 971         ext2fs_mark_ib_dirty(current_fs);
 972 }
 973
 974 void do_testi(int argc, char *argv[])
 975 {
 976         ext2_ino_t inode;
 977
 978         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
 979                 return;
 980
 981         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 982                 printf("Inode %u is marked in use\n", inode);
 983         else
 984                 printf("Inode %u is not in use\n", inode);
 985 }
 986
 987 void do_freeb(int argc, char *argv[])
 988 {
 989         blk64_t block;
 990         blk64_t count = 1;
 991
 992         if (common_block_args_process(argc, argv, &block, &count))
 993                 return;
 994         if (check_fs_read_write(argv[0]))
 995                 return;
 996         while (count-- > 0) {
 997                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
 998                         com_err(argv[0], 0, "Warning: block %llu already clear",
 999                                 block);
1000                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1001                 block++;
1002         }
1003         ext2fs_mark_bb_dirty(current_fs);
1004 }
1005
1006 void do_setb(int argc, char *argv[])
1007 {
1008         blk64_t block;
1009         blk64_t count = 1;
1010
1011         if (common_block_args_process(argc, argv, &block, &count))
1012                 return;
1013         if (check_fs_read_write(argv[0]))
1014                 return;
1015         while (count-- > 0) {
1016                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1017                         com_err(argv[0], 0, "Warning: block %llu already set",
1018                                 block);
1019                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1020                 block++;
1021         }
1022         ext2fs_mark_bb_dirty(current_fs);
1023 }
1024
1025 void do_testb(int argc, char *argv[])
1026 {
1027         blk64_t block;
1028         blk64_t count = 1;
1029
1030         if (common_block_args_process(argc, argv, &block, &count))
1031                 return;
1032         while (count-- > 0) {
1033                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1034                         printf("Block %llu marked in use\n", block);
1035                 else
1036                         printf("Block %llu not in use\n", block);
1037                 block++;
1038         }
1039 }
1040
1041 static void modify_u8(char *com, const char *prompt,
1042                       const char *format, __u8 *val)
1043 {
1044         char buf[200];
1045         unsigned long v;
1046         char *tmp;
1047
1048         sprintf(buf, format, *val);
1049         printf("%30s    [%s] ", prompt, buf);
1050         if (!fgets(buf, sizeof(buf), stdin))
1051                 return;
1052         if (buf[strlen (buf) - 1] == '\n')
1053                 buf[strlen (buf) - 1] = '\0';
1054         if (!buf[0])
1055                 return;
1056         v = strtoul(buf, &tmp, 0);
1057         if (*tmp)
1058                 com_err(com, 0, "Bad value - %s", buf);
1059         else
1060                 *val = v;
1061 }
1062
1063 static void modify_u16(char *com, const char *prompt,
1064                        const char *format, __u16 *val)
1065 {
1066         char buf[200];
1067         unsigned long v;
1068         char *tmp;
1069
1070         sprintf(buf, format, *val);
1071         printf("%30s    [%s] ", prompt, buf);
1072         if (!fgets(buf, sizeof(buf), stdin))
1073                 return;
1074         if (buf[strlen (buf) - 1] == '\n')
1075                 buf[strlen (buf) - 1] = '\0';
1076         if (!buf[0])
1077                 return;
1078         v = strtoul(buf, &tmp, 0);
1079         if (*tmp)
1080                 com_err(com, 0, "Bad value - %s", buf);
1081         else
1082                 *val = v;
1083 }
1084
1085 static void modify_u32(char *com, const char *prompt,
1086                        const char *format, __u32 *val)
1087 {
1088         char buf[200];
1089         unsigned long v;
1090         char *tmp;
1091
1092         sprintf(buf, format, *val);
1093         printf("%30s    [%s] ", prompt, buf);
1094         if (!fgets(buf, sizeof(buf), stdin))
1095                 return;
1096         if (buf[strlen (buf) - 1] == '\n')
1097                 buf[strlen (buf) - 1] = '\0';
1098         if (!buf[0])
1099                 return;
1100         v = strtoul(buf, &tmp, 0);
1101         if (*tmp)
1102                 com_err(com, 0, "Bad value - %s", buf);
1103         else
1104                 *val = v;
1105 }
1106
1107
1108 void do_modify_inode(int argc, char *argv[])
1109 {
1110         struct ext2_inode inode;
1111         ext2_ino_t      inode_num;
1112         int             i;
1113         unsigned char   *frag, *fsize;
1114         char            buf[80];
1115         int             os;
1116         const char      *hex_format = "0x%x";
1117         const char      *octal_format = "0%o";
1118         const char      *decimal_format = "%d";
1119         const char      *unsignedlong_format = "%lu";
1120
1121         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1122                 return;
1123
1124         os = current_fs->super->s_creator_os;
1125
1126         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1127                 return;
1128
1129         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1130         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1131         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1132         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1133         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1134         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1135         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1136         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1137         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1138         if (os == EXT2_OS_LINUX)
1139                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1140                            &inode.osd2.linux2.l_i_blocks_hi);
1141         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1142         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1143         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1144 #if 0
1145         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1146 #endif
1147         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1148         if (LINUX_S_ISDIR(inode.i_mode))
1149                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1150         else
1151                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1152
1153         if (os == EXT2_OS_HURD)
1154                 modify_u32(argv[0], "Translator Block",
1155                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1156
1157         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1158         switch (os) {
1159             case EXT2_OS_HURD:
1160                 frag = &inode.osd2.hurd2.h_i_frag;
1161                 fsize = &inode.osd2.hurd2.h_i_fsize;
1162                 break;
1163             default:
1164                 frag = fsize = 0;
1165         }
1166         if (frag)
1167                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1168         if (fsize)
1169                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1170
1171         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1172                 sprintf(buf, "Direct Block #%d", i);
1173                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1174         }
1175         modify_u32(argv[0], "Indirect Block", decimal_format,
1176                     &inode.i_block[EXT2_IND_BLOCK]);
1177         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1178                     &inode.i_block[EXT2_DIND_BLOCK]);
1179         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1180                     &inode.i_block[EXT2_TIND_BLOCK]);
1181         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1182                 return;
1183 }
1184
1185 void do_change_working_dir(int argc, char *argv[])
1186 {
1187         ext2_ino_t      inode;
1188         int             retval;
1189
1190         if (common_inode_args_process(argc, argv, &inode, 0))
1191                 return;
1192
1193         retval = ext2fs_check_directory(current_fs, inode);
1194         if (retval) {
1195                 com_err(argv[1], retval, 0);
1196                 return;
1197         }
1198         cwd = inode;
1199         return;
1200 }
1201
1202 void do_print_working_directory(int argc, char *argv[])
1203 {
1204         int     retval;
1205         char    *pathname = NULL;
1206
1207         if (common_args_process(argc, argv, 1, 1,
1208                                 "print_working_directory", "", 0))
1209                 return;
1210
1211         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1212         if (retval) {
1213                 com_err(argv[0], retval,
1214                         "while trying to get pathname of cwd");
1215         }
1216         printf("[pwd]   INODE: %6u  PATH: %s\n",
1217                cwd, pathname ? pathname : "NULL");
1218         if (pathname) {
1219                 free(pathname);
1220                 pathname = NULL;
1221         }
1222         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1223         if (retval) {
1224                 com_err(argv[0], retval,
1225                         "while trying to get pathname of root");
1226         }
1227         printf("[root]  INODE: %6u  PATH: %s\n",
1228                root, pathname ? pathname : "NULL");
1229         if (pathname) {
1230                 free(pathname);
1231                 pathname = NULL;
1232         }
1233         return;
1234 }
1235
1236 /*
1237  * Given a mode, return the ext2 file type
1238  */
1239 static int ext2_file_type(unsigned int mode)
1240 {
1241         if (LINUX_S_ISREG(mode))
1242                 return EXT2_FT_REG_FILE;
1243
1244         if (LINUX_S_ISDIR(mode))
1245                 return EXT2_FT_DIR;
1246
1247         if (LINUX_S_ISCHR(mode))
1248                 return EXT2_FT_CHRDEV;
1249
1250         if (LINUX_S_ISBLK(mode))
1251                 return EXT2_FT_BLKDEV;
1252
1253         if (LINUX_S_ISLNK(mode))
1254                 return EXT2_FT_SYMLINK;
1255
1256         if (LINUX_S_ISFIFO(mode))
1257                 return EXT2_FT_FIFO;
1258
1259         if (LINUX_S_ISSOCK(mode))
1260                 return EXT2_FT_SOCK;
1261
1262         return 0;
1263 }
1264
1265 static void make_link(char *sourcename, char *destname)
1266 {
1267         ext2_ino_t      ino;
1268         struct ext2_inode inode;
1269         int             retval;
1270         ext2_ino_t      dir;
1271         char            *dest, *cp, *base_name;
1272
1273         /*
1274          * Get the source inode
1275          */
1276         ino = string_to_inode(sourcename);
1277         if (!ino)
1278                 return;
1279         base_name = strrchr(sourcename, '/');
1280         if (base_name)
1281                 base_name++;
1282         else
1283                 base_name = sourcename;
1284         /*
1285          * Figure out the destination.  First see if it exists and is
1286          * a directory.
1287          */
1288         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1289                 dest = base_name;
1290         else {
1291                 /*
1292                  * OK, it doesn't exist.  See if it is
1293                  * '<dir>/basename' or 'basename'
1294                  */
1295                 cp = strrchr(destname, '/');
1296                 if (cp) {
1297                         *cp = 0;
1298                         dir = string_to_inode(destname);
1299                         if (!dir)
1300                                 return;
1301                         dest = cp+1;
1302                 } else {
1303                         dir = cwd;
1304                         dest = destname;
1305                 }
1306         }
1307
1308         if (debugfs_read_inode(ino, &inode, sourcename))
1309                 return;
1310
1311         retval = ext2fs_link(current_fs, dir, dest, ino,
1312                              ext2_file_type(inode.i_mode));
1313         if (retval)
1314                 com_err("make_link", retval, 0);
1315         return;
1316 }
1317
1318
1319 void do_link(int argc, char *argv[])
1320 {
1321         if (common_args_process(argc, argv, 3, 3, "link",
1322                                 "<source file> <dest_name>", CHECK_FS_RW))
1323                 return;
1324
1325         make_link(argv[1], argv[2]);
1326 }
1327
1328 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1329                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1330                             blk64_t ref_block EXT2FS_ATTR((unused)),
1331                             int ref_offset EXT2FS_ATTR((unused)),
1332                             void *private EXT2FS_ATTR((unused)))
1333 {
1334         blk64_t block;
1335
1336         block = *blocknr;
1337         ext2fs_block_alloc_stats2(fs, block, +1);
1338         return 0;
1339 }
1340
1341 void do_undel(int argc, char *argv[])
1342 {
1343         ext2_ino_t      ino;
1344         struct ext2_inode inode;
1345
1346         if (common_args_process(argc, argv, 2, 3, "undelete",
1347                                 "<inode_num> [dest_name]",
1348                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1349                 return;
1350
1351         ino = string_to_inode(argv[1]);
1352         if (!ino)
1353                 return;
1354
1355         if (debugfs_read_inode(ino, &inode, argv[1]))
1356                 return;
1357
1358         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1359                 com_err(argv[1], 0, "Inode is not marked as deleted");
1360                 return;
1361         }
1362
1363         /*
1364          * XXX this function doesn't handle changing the links count on the
1365          * parent directory when undeleting a directory.
1366          */
1367         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1368         inode.i_dtime = 0;
1369
1370         if (debugfs_write_inode(ino, &inode, argv[0]))
1371                 return;
1372
1373         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1374                               mark_blocks_proc, NULL);
1375
1376         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1377
1378         if (argc > 2)
1379                 make_link(argv[1], argv[2]);
1380 }
1381
1382 static void unlink_file_by_name(char *filename)
1383 {
1384         int             retval;
1385         ext2_ino_t      dir;
1386         char            *base_name;
1387
1388         base_name = strrchr(filename, '/');
1389         if (base_name) {
1390                 *base_name++ = '\0';
1391                 dir = string_to_inode(filename);
1392                 if (!dir)
1393                         return;
1394         } else {
1395                 dir = cwd;
1396                 base_name = filename;
1397         }
1398         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1399         if (retval)
1400                 com_err("unlink_file_by_name", retval, 0);
1401         return;
1402 }
1403
1404 void do_unlink(int argc, char *argv[])
1405 {
1406         if (common_args_process(argc, argv, 2, 2, "link",
1407                                 "<pathname>", CHECK_FS_RW))
1408                 return;
1409
1410         unlink_file_by_name(argv[1]);
1411 }
1412
1413 void do_find_free_block(int argc, char *argv[])
1414 {
1415         blk64_t free_blk, goal, first_free = 0;
1416         int             count;
1417         errcode_t       retval;
1418         char            *tmp;
1419
1420         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1421                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1422                 return;
1423         }
1424         if (check_fs_open(argv[0]))
1425                 return;
1426
1427         if (argc > 1) {
1428                 count = strtol(argv[1],&tmp,0);
1429                 if (*tmp) {
1430                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1431                         return;
1432                 }
1433         } else
1434                 count = 1;
1435
1436         if (argc > 2) {
1437                 goal = strtol(argv[2], &tmp, 0);
1438                 if (*tmp) {
1439                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1440                         return;
1441                 }
1442         }
1443         else
1444                 goal = current_fs->super->s_first_data_block;
1445
1446         printf("Free blocks found: ");
1447         free_blk = goal - 1;
1448         while (count-- > 0) {
1449                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1450                                            &free_blk);
1451                 if (first_free) {
1452                         if (first_free == free_blk)
1453                                 break;
1454                 } else
1455                         first_free = free_blk;
1456                 if (retval) {
1457                         com_err("ext2fs_new_block", retval, 0);
1458                         return;
1459                 } else
1460                         printf("%llu ", free_blk);
1461         }
1462         printf("\n");
1463 }
1464
1465 void do_find_free_inode(int argc, char *argv[])
1466 {
1467         ext2_ino_t      free_inode, dir;
1468         int             mode;
1469         int             retval;
1470         char            *tmp;
1471
1472         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1473                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1474                 return;
1475         }
1476         if (check_fs_open(argv[0]))
1477                 return;
1478
1479         if (argc > 1) {
1480                 dir = strtol(argv[1], &tmp, 0);
1481                 if (*tmp) {
1482                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1483                         return;
1484                 }
1485         }
1486         else
1487                 dir = root;
1488         if (argc > 2) {
1489                 mode = strtol(argv[2], &tmp, 0);
1490                 if (*tmp) {
1491                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1492                         return;
1493                 }
1494         } else
1495                 mode = 010755;
1496
1497         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1498         if (retval)
1499                 com_err("ext2fs_new_inode", retval, 0);
1500         else
1501                 printf("Free inode found: %u\n", free_inode);
1502 }
1503
1504 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1505 {
1506         ext2_file_t     e2_file;
1507         errcode_t       retval;
1508         int             got;
1509         unsigned int    written;
1510         char            buf[8192];
1511         char            *ptr;
1512
1513         retval = ext2fs_file_open(current_fs, newfile,
1514                                   EXT2_FILE_WRITE, &e2_file);
1515         if (retval)
1516                 return retval;
1517
1518         while (1) {
1519                 got = read(fd, buf, sizeof(buf));
1520                 if (got == 0)
1521                         break;
1522                 if (got < 0) {
1523                         retval = errno;
1524                         goto fail;
1525                 }
1526                 ptr = buf;
1527                 while (got > 0) {
1528                         retval = ext2fs_file_write(e2_file, ptr,
1529                                                    got, &written);
1530                         if (retval)
1531                                 goto fail;
1532
1533                         got -= written;
1534                         ptr += written;
1535                 }
1536         }
1537         retval = ext2fs_file_close(e2_file);
1538         return retval;
1539
1540 fail:
1541         (void) ext2fs_file_close(e2_file);
1542         return retval;
1543 }
1544
1545
1546 void do_write(int argc, char *argv[])
1547 {
1548         int             fd;
1549         struct stat     statbuf;
1550         ext2_ino_t      newfile;
1551         errcode_t       retval;
1552         struct ext2_inode inode;
1553
1554         if (common_args_process(argc, argv, 3, 3, "write",
1555                                 "<native file> <new file>", CHECK_FS_RW))
1556                 return;
1557
1558         fd = open(argv[1], O_RDONLY);
1559         if (fd < 0) {
1560                 com_err(argv[1], errno, 0);
1561                 return;
1562         }
1563         if (fstat(fd, &statbuf) < 0) {
1564                 com_err(argv[1], errno, 0);
1565                 close(fd);
1566                 return;
1567         }
1568
1569         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1570         if (retval == 0) {
1571                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1572                 close(fd);
1573                 return;
1574         }
1575
1576         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1577         if (retval) {
1578                 com_err(argv[0], retval, 0);
1579                 close(fd);
1580                 return;
1581         }
1582         printf("Allocated inode: %u\n", newfile);
1583         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1584                              EXT2_FT_REG_FILE);
1585         if (retval == EXT2_ET_DIR_NO_SPACE) {
1586                 retval = ext2fs_expand_dir(current_fs, cwd);
1587                 if (retval) {
1588                         com_err(argv[0], retval, "while expanding directory");
1589                         close(fd);
1590                         return;
1591                 }
1592                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1593                                      EXT2_FT_REG_FILE);
1594         }
1595         if (retval) {
1596                 com_err(argv[2], retval, 0);
1597                 close(fd);
1598                 return;
1599         }
1600         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1601                 com_err(argv[0], 0, "Warning: inode already set");
1602         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1603         memset(&inode, 0, sizeof(inode));
1604         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1605         inode.i_atime = inode.i_ctime = inode.i_mtime =
1606                 current_fs->now ? current_fs->now : time(0);
1607         inode.i_links_count = 1;
1608         inode.i_size = statbuf.st_size;
1609         if (current_fs->super->s_feature_incompat &
1610             EXT3_FEATURE_INCOMPAT_EXTENTS)
1611                 inode.i_flags |= EXT4_EXTENTS_FL;
1612         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1613                 close(fd);
1614                 return;
1615         }
1616         if (LINUX_S_ISREG(inode.i_mode)) {
1617                 retval = copy_file(fd, newfile);
1618                 if (retval)
1619                         com_err("copy_file", retval, 0);
1620         }
1621         close(fd);
1622 }
1623
1624 void do_mknod(int argc, char *argv[])
1625 {
1626         unsigned long   mode, major, minor;
1627         ext2_ino_t      newfile;
1628         errcode_t       retval;
1629         struct ext2_inode inode;
1630         int             filetype, nr;
1631
1632         if (check_fs_open(argv[0]))
1633                 return;
1634         if (argc < 3 || argv[2][1]) {
1635         usage:
1636                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1637                 return;
1638         }
1639         mode = minor = major = 0;
1640         switch (argv[2][0]) {
1641                 case 'p':
1642                         mode = LINUX_S_IFIFO;
1643                         filetype = EXT2_FT_FIFO;
1644                         nr = 3;
1645                         break;
1646                 case 'c':
1647                         mode = LINUX_S_IFCHR;
1648                         filetype = EXT2_FT_CHRDEV;
1649                         nr = 5;
1650                         break;
1651                 case 'b':
1652                         mode = LINUX_S_IFBLK;
1653                         filetype = EXT2_FT_BLKDEV;
1654                         nr = 5;
1655                         break;
1656                 default:
1657                         filetype = 0;
1658                         nr = 0;
1659         }
1660         if (nr == 5) {
1661                 major = strtoul(argv[3], argv+3, 0);
1662                 minor = strtoul(argv[4], argv+4, 0);
1663                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1664                         nr = 0;
1665         }
1666         if (argc != nr)
1667                 goto usage;
1668         if (check_fs_read_write(argv[0]))
1669                 return;
1670         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1671         if (retval) {
1672                 com_err(argv[0], retval, 0);
1673                 return;
1674         }
1675         printf("Allocated inode: %u\n", newfile);
1676         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1677         if (retval == EXT2_ET_DIR_NO_SPACE) {
1678                 retval = ext2fs_expand_dir(current_fs, cwd);
1679                 if (retval) {
1680                         com_err(argv[0], retval, "while expanding directory");
1681                         return;
1682                 }
1683                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1684                                      filetype);
1685         }
1686         if (retval) {
1687                 com_err(argv[1], retval, 0);
1688                 return;
1689         }
1690         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1691                 com_err(argv[0], 0, "Warning: inode already set");
1692         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1693         ext2fs_mark_ib_dirty(current_fs);
1694         memset(&inode, 0, sizeof(inode));
1695         inode.i_mode = mode;
1696         inode.i_atime = inode.i_ctime = inode.i_mtime =
1697                 current_fs->now ? current_fs->now : time(0);
1698         if ((major < 256) && (minor < 256)) {
1699                 inode.i_block[0] = major*256+minor;
1700                 inode.i_block[1] = 0;
1701         } else {
1702                 inode.i_block[0] = 0;
1703                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1704         }
1705         inode.i_links_count = 1;
1706         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1707                 return;
1708 }
1709
1710 void do_mkdir(int argc, char *argv[])
1711 {
1712         char    *cp;
1713         ext2_ino_t      parent;
1714         char    *name;
1715         errcode_t retval;
1716
1717         if (common_args_process(argc, argv, 2, 2, "mkdir",
1718                                 "<filename>", CHECK_FS_RW))
1719                 return;
1720
1721         cp = strrchr(argv[1], '/');
1722         if (cp) {
1723                 *cp = 0;
1724                 parent = string_to_inode(argv[1]);
1725                 if (!parent) {
1726                         com_err(argv[1], ENOENT, 0);
1727                         return;
1728                 }
1729                 name = cp+1;
1730         } else {
1731                 parent = cwd;
1732                 name = argv[1];
1733         }
1734
1735 try_again:
1736         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1737         if (retval == EXT2_ET_DIR_NO_SPACE) {
1738                 retval = ext2fs_expand_dir(current_fs, parent);
1739                 if (retval) {
1740                         com_err(argv[0], retval, "while expanding directory");
1741                         return;
1742                 }
1743                 goto try_again;
1744         }
1745         if (retval) {
1746                 com_err("ext2fs_mkdir", retval, 0);
1747                 return;
1748         }
1749
1750 }
1751
1752 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1753                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1754                                blk64_t ref_block EXT2FS_ATTR((unused)),
1755                                int ref_offset EXT2FS_ATTR((unused)),
1756                                void *private EXT2FS_ATTR((unused)))
1757 {
1758         blk64_t block;
1759
1760         block = *blocknr;
1761         ext2fs_block_alloc_stats2(fs, block, -1);
1762         return 0;
1763 }
1764
1765 static void kill_file_by_inode(ext2_ino_t inode)
1766 {
1767         struct ext2_inode inode_buf;
1768
1769         if (debugfs_read_inode(inode, &inode_buf, 0))
1770                 return;
1771         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1772         if (debugfs_write_inode(inode, &inode_buf, 0))
1773                 return;
1774         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1775                 return;
1776
1777         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1778                               release_blocks_proc, NULL);
1779         printf("\n");
1780         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1781                                   LINUX_S_ISDIR(inode_buf.i_mode));
1782 }
1783
1784
1785 void do_kill_file(int argc, char *argv[])
1786 {
1787         ext2_ino_t inode_num;
1788
1789         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1790                 return;
1791
1792         kill_file_by_inode(inode_num);
1793 }
1794
1795 void do_rm(int argc, char *argv[])
1796 {
1797         int retval;
1798         ext2_ino_t inode_num;
1799         struct ext2_inode inode;
1800
1801         if (common_args_process(argc, argv, 2, 2, "rm",
1802                                 "<filename>", CHECK_FS_RW))
1803                 return;
1804
1805         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1806         if (retval) {
1807                 com_err(argv[0], retval, "while trying to resolve filename");
1808                 return;
1809         }
1810
1811         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1812                 return;
1813
1814         if (LINUX_S_ISDIR(inode.i_mode)) {
1815                 com_err(argv[0], 0, "file is a directory");
1816                 return;
1817         }
1818
1819         --inode.i_links_count;
1820         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1821                 return;
1822
1823         unlink_file_by_name(argv[1]);
1824         if (inode.i_links_count == 0)
1825                 kill_file_by_inode(inode_num);
1826 }
1827
1828 struct rd_struct {
1829         ext2_ino_t      parent;
1830         int             empty;
1831 };
1832
1833 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1834                       int       entry EXT2FS_ATTR((unused)),
1835                       struct ext2_dir_entry *dirent,
1836                       int       offset EXT2FS_ATTR((unused)),
1837                       int       blocksize EXT2FS_ATTR((unused)),
1838                       char      *buf EXT2FS_ATTR((unused)),
1839                       void      *private)
1840 {
1841         struct rd_struct *rds = (struct rd_struct *) private;
1842
1843         if (dirent->inode == 0)
1844                 return 0;
1845         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1846                 return 0;
1847         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1848             (dirent->name[1] == '.')) {
1849                 rds->parent = dirent->inode;
1850                 return 0;
1851         }
1852         rds->empty = 0;
1853         return 0;
1854 }
1855
1856 void do_rmdir(int argc, char *argv[])
1857 {
1858         int retval;
1859         ext2_ino_t inode_num;
1860         struct ext2_inode inode;
1861         struct rd_struct rds;
1862
1863         if (common_args_process(argc, argv, 2, 2, "rmdir",
1864                                 "<filename>", CHECK_FS_RW))
1865                 return;
1866
1867         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1868         if (retval) {
1869                 com_err(argv[0], retval, "while trying to resolve filename");
1870                 return;
1871         }
1872
1873         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1874                 return;
1875
1876         if (!LINUX_S_ISDIR(inode.i_mode)) {
1877                 com_err(argv[0], 0, "file is not a directory");
1878                 return;
1879         }
1880
1881         rds.parent = 0;
1882         rds.empty = 1;
1883
1884         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1885                                     0, rmdir_proc, &rds);
1886         if (retval) {
1887                 com_err(argv[0], retval, "while iterating over directory");
1888                 return;
1889         }
1890         if (rds.empty == 0) {
1891                 com_err(argv[0], 0, "directory not empty");
1892                 return;
1893         }
1894
1895         inode.i_links_count = 0;
1896         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1897                 return;
1898
1899         unlink_file_by_name(argv[1]);
1900         kill_file_by_inode(inode_num);
1901
1902         if (rds.parent) {
1903                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1904                         return;
1905                 if (inode.i_links_count > 1)
1906                         inode.i_links_count--;
1907                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1908                         return;
1909         }
1910 }
1911
1912 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1913                             char *argv[] EXT2FS_ATTR((unused)))
1914 {
1915         FILE *out = stdout;
1916
1917         if (current_fs)
1918                 fprintf(out, "Open mode: read-%s\n",
1919                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1920         fprintf(out, "Filesystem in use: %s\n",
1921                 current_fs ? current_fs->device_name : "--none--");
1922 }
1923
1924 void do_expand_dir(int argc, char *argv[])
1925 {
1926         ext2_ino_t inode;
1927         int retval;
1928
1929         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1930                 return;
1931
1932         retval = ext2fs_expand_dir(current_fs, inode);
1933         if (retval)
1934                 com_err("ext2fs_expand_dir", retval, 0);
1935         return;
1936 }
1937
1938 void do_features(int argc, char *argv[])
1939 {
1940         int     i;
1941
1942         if (check_fs_open(argv[0]))
1943                 return;
1944
1945         if ((argc != 1) && check_fs_read_write(argv[0]))
1946                 return;
1947         for (i=1; i < argc; i++) {
1948                 if (e2p_edit_feature(argv[i],
1949                                      &current_fs->super->s_feature_compat, 0))
1950                         com_err(argv[0], 0, "Unknown feature: %s\n",
1951                                 argv[i]);
1952                 else
1953                         ext2fs_mark_super_dirty(current_fs);
1954         }
1955         print_features(current_fs->super, stdout);
1956 }
1957
1958 void do_bmap(int argc, char *argv[])
1959 {
1960         ext2_ino_t      ino;
1961         blk64_t         blk, pblk;
1962         int             err;
1963         errcode_t       errcode;
1964
1965         if (common_args_process(argc, argv, 3, 3, argv[0],
1966                                 "<file> logical_blk", 0))
1967                 return;
1968
1969         ino = string_to_inode(argv[1]);
1970         if (!ino)
1971                 return;
1972         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1973
1974         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1975         if (errcode) {
1976                 com_err("argv[0]", errcode,
1977                         "while mapping logical block %llu\n", blk);
1978                 return;
1979         }
1980         printf("%llu\n", pblk);
1981 }
1982
1983 void do_imap(int argc, char *argv[])
1984 {
1985         ext2_ino_t      ino;
1986         unsigned long   group, block, block_nr, offset;
1987
1988         if (common_args_process(argc, argv, 2, 2, argv[0],
1989                                 "<file>", 0))
1990                 return;
1991         ino = string_to_inode(argv[1]);
1992         if (!ino)
1993                 return;
1994
1995         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1996         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1997                 EXT2_INODE_SIZE(current_fs->super);
1998         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1999         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2000                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2001                         group);
2002                 return;
2003         }
2004         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2005                 block;
2006         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2007
2008         printf("Inode %d is part of block group %lu\n"
2009                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2010                block_nr, offset);
2011
2012 }
2013
2014 void do_set_current_time(int argc, char *argv[])
2015 {
2016         time_t now;
2017
2018         if (common_args_process(argc, argv, 2, 2, argv[0],
2019                                 "<time>", 0))
2020                 return;
2021
2022         now = string_to_time(argv[1]);
2023         if (now == ((time_t) -1)) {
2024                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2025                         argv[1]);
2026                 return;
2027
2028         } else {
2029                 printf("Setting current time to %s\n", time_to_string(now));
2030                 current_fs->now = now;
2031         }
2032 }
2033
2034 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2035 {
2036         int compat, bit, ret;
2037         unsigned int feature_mask;
2038
2039         if (name) {
2040                 if (feature_type == E2P_FS_FEATURE)
2041                         ret = e2p_string2feature(name, &compat, &feature_mask);
2042                 else
2043                         ret = e2p_jrnl_string2feature(name, &compat,
2044                                                       &feature_mask);
2045                 if (ret)
2046                         return ret;
2047
2048                 if (!(supp[compat] & feature_mask))
2049                         return 1;
2050         } else {
2051                 for (compat = 0; compat < 3; compat++) {
2052                         for (bit = 0, feature_mask = 1; bit < 32;
2053                              bit++, feature_mask <<= 1) {
2054                                 if (supp[compat] & feature_mask) {
2055                                         if (feature_type == E2P_FS_FEATURE)
2056                                                 fprintf(stdout, " %s",
2057                                                 e2p_feature2string(compat,
2058                                                 feature_mask));
2059                                         else
2060                                                 fprintf(stdout, " %s",
2061                                                 e2p_jrnl_feature2string(compat,
2062                                                 feature_mask));
2063                                 }
2064                         }
2065                 }
2066                 fprintf(stdout, "\n");
2067         }
2068
2069         return 0;
2070 }
2071
2072 void do_supported_features(int argc, char *argv[])
2073 {
2074         int     ret;
2075         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2076                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2077                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2078         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2079                                  JFS_KNOWN_INCOMPAT_FEATURES,
2080                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2081
2082         if (argc > 1) {
2083                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2084                 if (ret) {
2085                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2086                                                 argv[1]);
2087                 }
2088                 if (ret)
2089                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2090                 else
2091                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2092         } else {
2093                 fprintf(stdout, "Supported features:");
2094                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2095                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2096         }
2097 }
2098
2099 void do_punch(int argc, char *argv[])
2100 {
2101         ext2_ino_t      ino;
2102         blk64_t         start, end;
2103         int             err;
2104         errcode_t       errcode;
2105
2106         if (common_args_process(argc, argv, 3, 4, argv[0],
2107                                 "<file> start_blk [end_blk]",
2108                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2109                 return;
2110
2111         ino = string_to_inode(argv[1]);
2112         if (!ino)
2113                 return;
2114         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2115         if (argc == 4)
2116                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2117         else
2118                 end = ~0;
2119
2120         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2121
2122         if (errcode) {
2123                 com_err(argv[0], errcode,
2124                         "while truncating inode %u from %llu to %llu\n", ino,
2125                         (unsigned long long) start, (unsigned long long) end);
2126                 return;
2127         }
2128 }
2129
2130 static int source_file(const char *cmd_file, int sci_idx)
2131 {
2132         FILE            *f;
2133         char            buf[256];
2134         char            *cp;
2135         int             exit_status = 0;
2136         int             retval;
2137
2138         if (strcmp(cmd_file, "-") == 0)
2139                 f = stdin;
2140         else {
2141                 f = fopen(cmd_file, "r");
2142                 if (!f) {
2143                         perror(cmd_file);
2144                         exit(1);
2145                 }
2146         }
2147         fflush(stdout);
2148         fflush(stderr);
2149         setbuf(stdout, NULL);
2150         setbuf(stderr, NULL);
2151         while (!feof(f)) {
2152                 if (fgets(buf, sizeof(buf), f) == NULL)
2153                         break;
2154                 cp = strchr(buf, '\n');
2155                 if (cp)
2156                         *cp = 0;
2157                 cp = strchr(buf, '\r');
2158                 if (cp)
2159                         *cp = 0;
2160                 printf("debugfs: %s\n", buf);
2161                 retval = ss_execute_line(sci_idx, buf);
2162                 if (retval) {
2163                         ss_perror(sci_idx, retval, buf);
2164                         exit_status++;
2165                 }
2166         }
2167         if (f != stdin)
2168                 fclose(f);
2169         return exit_status;
2170 }
2171
2172 int main(int argc, char **argv)
2173 {
2174         int             retval;
2175         int             sci_idx;
2176         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2177         int             c;
2178         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2179         char            *request = 0;
2180         int             exit_status = 0;
2181         char            *cmd_file = 0;
2182         blk64_t         superblock = 0;
2183         blk64_t         blocksize = 0;
2184         int             catastrophic = 0;
2185         char            *data_filename = 0;
2186
2187         if (debug_prog_name == 0)
2188                 debug_prog_name = "debugfs";
2189
2190         add_error_table(&et_ext2_error_table);
2191         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2192                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2193
2194         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2195                 switch (c) {
2196                 case 'R':
2197                         request = optarg;
2198                         break;
2199                 case 'f':
2200                         cmd_file = optarg;
2201                         break;
2202                 case 'd':
2203                         data_filename = optarg;
2204                         break;
2205                 case 'i':
2206                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2207                         break;
2208                 case 'w':
2209                         open_flags |= EXT2_FLAG_RW;
2210                         break;
2211                 case 'D':
2212                         open_flags |= EXT2_FLAG_DIRECT_IO;
2213                         break;
2214                 case 'b':
2215                         blocksize = parse_ulong(optarg, argv[0],
2216                                                 "block size", 0);
2217                         break;
2218                 case 's':
2219                         superblock = parse_ulong(optarg, argv[0],
2220                                                  "superblock number", 0);
2221                         break;
2222                 case 'c':
2223                         catastrophic = 1;
2224                         break;
2225                 case 'V':
2226                         /* Print version number and exit */
2227                         fprintf(stderr, "\tUsing %s\n",
2228                                 error_message(EXT2_ET_BASE));
2229                         exit(0);
2230                 default:
2231                         com_err(argv[0], 0, usage, debug_prog_name);
2232                         return 1;
2233                 }
2234         }
2235         if (optind < argc)
2236                 open_filesystem(argv[optind], open_flags,
2237                                 superblock, blocksize, catastrophic,
2238                                 data_filename);
2239
2240         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2241                                        &debug_cmds, &retval);
2242         if (retval) {
2243                 ss_perror(sci_idx, retval, "creating invocation");
2244                 exit(1);
2245         }
2246         ss_get_readline(sci_idx);
2247
2248         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2249         if (retval) {
2250                 ss_perror(sci_idx, retval, "adding standard requests");
2251                 exit (1);
2252         }
2253         if (extra_cmds)
2254                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2255         if (retval) {
2256                 ss_perror(sci_idx, retval, "adding extra requests");
2257                 exit (1);
2258         }
2259         if (request) {
2260                 retval = 0;
2261                 retval = ss_execute_line(sci_idx, request);
2262                 if (retval) {
2263                         ss_perror(sci_idx, retval, request);
2264                         exit_status++;
2265                 }
2266         } else if (cmd_file) {
2267                 exit_status = source_file(cmd_file, sci_idx);
2268         } else {
2269                 ss_listen(sci_idx);
2270         }
2271
2272         ss_delete_invocation(sci_idx);
2273
2274         if (current_fs)
2275                 close_filesystem();
2276
2277         remove_error_table(&et_ext2_error_table);
2278         return exit_status;
2279 }