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_OPTRESET
  24 extern int optreset;            /* defined by BSD, but not others */
  25 #endif
  26 #ifdef HAVE_ERRNO_H
  27 #include <errno.h>
  28 #endif
  29 #include <fcntl.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32
  33 #include "et/com_err.h"
  34 #include "ss/ss.h"
  35 #include "debugfs.h"
  36 #include "uuid/uuid.h"
  37 #include "e2p/e2p.h"
  38
  39 #include "../version.h"
  40
  41 extern ss_request_table debug_cmds;
  42
  43 ext2_filsys     current_fs = NULL;
  44 ext2_ino_t      root, cwd;
  45
  46 static void open_filesystem(char *device, int open_flags, blk_t superblock,
  47                             blk_t blocksize, int catastrophic)
  48 {
  49         int     retval;
  50
  51         if (superblock != 0 && blocksize == 0) {
  52                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
  53                 current_fs = NULL;
  54                 return;
  55         }
  56
  57         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
  58                 com_err(device, 0,
  59                         "opening read-only because of catastrophic mode");
  60                 open_flags &= ~EXT2_FLAG_RW;
  61         }
  62
  63         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  64                              unix_io_manager, &current_fs);
  65         if (retval) {
  66                 com_err(device, retval, "while opening filesystem");
  67                 current_fs = NULL;
  68                 return;
  69         }
  70
  71         if (catastrophic)
  72                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  73         else {
  74                 retval = ext2fs_read_inode_bitmap(current_fs);
  75                 if (retval) {
  76                         com_err(device, retval, "while reading inode bitmap");
  77                         goto errout;
  78                 }
  79                 retval = ext2fs_read_block_bitmap(current_fs);
  80                 if (retval) {
  81                         com_err(device, retval, "while reading block bitmap");
  82                         goto errout;
  83                 }
  84         }
  85         root = cwd = EXT2_ROOT_INO;
  86         return;
  87
  88 errout:
  89         retval = ext2fs_close(current_fs);
  90         if (retval)
  91                 com_err(device, retval, "while trying to close filesystem");
  92         current_fs = NULL;
  93 }
  94
  95 void do_open_filesys(int argc, char **argv)
  96 {
  97         const char *usage = "Usage: open [-s superblock] [-b blocksize] [-c] [-w] <device>";
  98         int     c, err;
  99         int     catastrophic = 0;
 100         blk_t   superblock = 0;
 101         blk_t   blocksize = 0;
 102         int open_flags = 0;
 103
 104         optind = 0;
 105 #ifdef HAVE_OPTRESET
 106         optreset = 1;           /* Makes BSD getopt happy */
 107 #endif
 108         while ((c = getopt (argc, argv, "iwfcb:s:")) != EOF) {
 109                 switch (c) {
 110                 case 'i':
 111                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 112                         break;
 113                 case 'w':
 114                         open_flags |= EXT2_FLAG_RW;
 115                         break;
 116                 case 'f':
 117                         open_flags |= EXT2_FLAG_FORCE;
 118                         break;
 119                 case 'c':
 120                         catastrophic = 1;
 121                         break;
 122                 case 'b':
 123                         blocksize = parse_ulong(optarg, argv[0],
 124                                                 "block size", &err);
 125                         if (err)
 126                                 return;
 127                         break;
 128                 case 's':
 129                         superblock = parse_ulong(optarg, argv[0],
 130                                                  "superblock number", &err);
 131                         if (err)
 132                                 return;
 133                         break;
 134                 default:
 135                         com_err(argv[0], 0, usage);
 136                         return;
 137                 }
 138         }
 139         if (optind != argc-1) {
 140                 com_err(argv[0], 0, usage);
 141                 return;
 142         }
 143         if (check_fs_not_open(argv[0]))
 144                 return;
 145         open_filesystem(argv[optind], open_flags,
 146                         superblock, blocksize, catastrophic);
 147 }
 148
 149 void do_lcd(int argc, char **argv)
 150 {
 151         if (common_args_process(argc, argv, 2, 2, "lcd",
 152                                 "<native dir>", 0))
 153                 return;
 154
 155         if (chdir(argv[1]) == -1) {
 156                 com_err(argv[0], errno,
 157                         "while trying to change native directory to %s",
 158                         argv[1]);
 159                 return;
 160         }
 161 }
 162
 163 static void close_filesystem(NOARGS)
 164 {
 165         int     retval;
 166
 167         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 168                 retval = ext2fs_write_inode_bitmap(current_fs);
 169                 if (retval)
 170                         com_err("ext2fs_write_inode_bitmap", retval, "");
 171         }
 172         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 173                 retval = ext2fs_write_block_bitmap(current_fs);
 174                 if (retval)
 175                         com_err("ext2fs_write_block_bitmap", retval, "");
 176         }
 177         retval = ext2fs_close(current_fs);
 178         if (retval)
 179                 com_err("ext2fs_close", retval, "");
 180         current_fs = NULL;
 181         return;
 182 }
 183
 184 void do_close_filesys(int argc, char **argv)
 185 {
 186         if (common_args_process(argc, argv, 1, 1, "close_filesys", "", 0))
 187                 return;
 188         close_filesystem();
 189 }
 190
 191 void do_init_filesys(int argc, char **argv)
 192 {
 193         struct ext2_super_block param;
 194         errcode_t       retval;
 195         int             err;
 196
 197         if (common_args_process(argc, argv, 3, 3, "initialize",
 198                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 199                 return;
 200
 201         memset(&param, 0, sizeof(struct ext2_super_block));
 202         param.s_blocks_count = parse_ulong(argv[0], argv[2],
 203                                            "blocks count", &err);
 204         if (err)
 205                 return;
 206         retval = ext2fs_initialize(argv[1], 0, &param,
 207                                    unix_io_manager, &current_fs);
 208         if (retval) {
 209                 com_err(argv[1], retval, "while initializing filesystem");
 210                 current_fs = NULL;
 211                 return;
 212         }
 213         root = cwd = EXT2_ROOT_INO;
 214         return;
 215 }
 216
 217 static void print_features(struct ext2_super_block * s, FILE *f)
 218 {
 219         int     i, j, printed=0;
 220         __u32   *mask = &s->s_feature_compat, m;
 221
 222         fputs("Filesystem features:", f);
 223         for (i=0; i <3; i++,mask++) {
 224                 for (j=0,m=1; j < 32; j++, m<<=1) {
 225                         if (*mask & m) {
 226                                 fprintf(f, " %s", e2p_feature2string(i, m));
 227                                 printed++;
 228                         }
 229                 }
 230         }
 231         if (printed == 0)
 232                 fputs("(none)", f);
 233         fputs("\n", f);
 234 }
 235
 236 void do_show_super_stats(int argc, char *argv[])
 237 {
 238         int     i;
 239         FILE    *out;
 240         struct ext2_group_desc *gdp;
 241         int     c, header_only = 0;
 242         const char *usage = "Usage: show_super [-h]";
 243
 244         optind = 0;
 245 #ifdef HAVE_OPTRESET
 246         optreset = 1;           /* Makes BSD getopt happy */
 247 #endif
 248         while ((c = getopt (argc, argv, "h")) != EOF) {
 249                 switch (c) {
 250                 case 'h':
 251                         header_only++;
 252                         break;
 253                 default:
 254                         com_err(argv[0], 0, usage);
 255                         return;
 256                 }
 257         }
 258         if (optind != argc) {
 259                 com_err(argv[0], 0, usage);
 260                 return;
 261         }
 262         if (check_fs_open(argv[0]))
 263                 return;
 264         out = open_pager();
 265
 266         list_super2(current_fs->super, out);
 267
 268         if (header_only) {
 269                 close_pager(out);
 270                 return;
 271         }
 272
 273         gdp = &current_fs->group_desc[0];
 274         for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
 275                 fprintf(out, " Group %2d: block bitmap at %d, "
 276                         "inode bitmap at %d, "
 277                         "inode table at %d\n"
 278                         "           %d free %s, "
 279                         "%d free %s, "
 280                         "%d used %s\n",
 281                         i, gdp->bg_block_bitmap,
 282                         gdp->bg_inode_bitmap, gdp->bg_inode_table,
 283                         gdp->bg_free_blocks_count,
 284                         gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
 285                         gdp->bg_free_inodes_count,
 286                         gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
 287                         gdp->bg_used_dirs_count,
 288                         gdp->bg_used_dirs_count != 1 ? "directories"
 289                                 : "directory");
 290         close_pager(out);
 291 }
 292
 293 void do_dirty_filesys(int argc, char **argv)
 294 {
 295         if (check_fs_open(argv[0]))
 296                 return;
 297         if (check_fs_read_write(argv[0]))
 298                 return;
 299
 300         if (argv[1] && !strcmp(argv[1], "-clean"))
 301                 current_fs->super->s_state |= EXT2_VALID_FS;
 302         else
 303                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 304         ext2fs_mark_super_dirty(current_fs);
 305 }
 306
 307 struct list_blocks_struct {
 308         FILE            *f;
 309         e2_blkcnt_t     total;
 310         blk_t           first_block, last_block;
 311         e2_blkcnt_t     first_bcnt, last_bcnt;
 312         e2_blkcnt_t     first;
 313 };
 314
 315 static void finish_range(struct list_blocks_struct *lb)
 316 {
 317         if (lb->first_block == 0)
 318                 return;
 319         if (lb->first)
 320                 lb->first = 0;
 321         else
 322                 fprintf(lb->f, ", ");
 323         if (lb->first_block == lb->last_block)
 324                 fprintf(lb->f, "(%lld):%d", lb->first_bcnt, lb->first_block);
 325         else
 326                 fprintf(lb->f, "(%lld-%lld):%d-%d", lb->first_bcnt,
 327                         lb->last_bcnt, lb->first_block, lb->last_block);
 328         lb->first_block = 0;
 329 }
 330
 331 static int list_blocks_proc(ext2_filsys fs, blk_t *blocknr,
 332                             e2_blkcnt_t blockcnt, blk_t ref_block,
 333                             int ref_offset, void *private)
 334 {
 335         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 336
 337         lb->total++;
 338         if (blockcnt >= 0) {
 339                 /*
 340                  * See if we can add on to the existing range (if it exists)
 341                  */
 342                 if (lb->first_block &&
 343                     (lb->last_block+1 == *blocknr) &&
 344                     (lb->last_bcnt+1 == blockcnt)) {
 345                         lb->last_block = *blocknr;
 346                         lb->last_bcnt = blockcnt;
 347                         return 0;
 348                 }
 349                 /*
 350                  * Start a new range.
 351                  */
 352                 finish_range(lb);
 353                 lb->first_block = lb->last_block = *blocknr;
 354                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 355                 return 0;
 356         }
 357         /*
 358          * Not a normal block.  Always force a new range.
 359          */
 360         finish_range(lb);
 361         if (lb->first)
 362                 lb->first = 0;
 363         else
 364                 fprintf(lb->f, ", ");
 365         if (blockcnt == -1)
 366                 fprintf(lb->f, "(IND):%d", *blocknr);
 367         else if (blockcnt == -2)
 368                 fprintf(lb->f, "(DIND):%d", *blocknr);
 369         else if (blockcnt == -3)
 370                 fprintf(lb->f, "(TIND):%d", *blocknr);
 371         return 0;
 372 }
 373
 374
 375 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 376 {
 377         struct list_blocks_struct lb;
 378
 379         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 380         lb.total = 0;
 381         lb.first_block = 0;
 382         lb.f = f;
 383         lb.first = 1;
 384         ext2fs_block_iterate2(current_fs, inode, 0, NULL,
 385                              list_blocks_proc, (void *)&lb);
 386         finish_range(&lb);
 387         if (lb.total)
 388                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, lb.total);
 389         fprintf(f,"\n");
 390 }
 391
 392
 393 void internal_dump_inode(FILE *out, const char *prefix,
 394                          ext2_ino_t inode_num, struct ext2_inode *inode,
 395                          int do_dump_blocks)
 396 {
 397         const char *i_type;
 398         char frag, fsize;
 399         int os = current_fs->super->s_creator_os;
 400
 401         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 402         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 403         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 404         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 405         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 406         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 407         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 408         else i_type = "bad type";
 409         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 410         fprintf(out, "%sMode:  %04o   Flags: 0x%x   Generation: %u\n",
 411                 prefix,
 412                 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
 413         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 414                 prefix, inode->i_uid, inode->i_gid);
 415         if (LINUX_S_ISREG(inode->i_mode)) {
 416                 __u64 i_size = (inode->i_size |
 417                                 ((unsigned long long)inode->i_size_high << 32));
 418
 419                 fprintf(out, "%lld\n", i_size);
 420         } else
 421                 fprintf(out, "%d\n", inode->i_size);
 422         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
 423                 fprintf(out,
 424                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 425                         prefix,
 426                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 427                         inode->osd1.hurd1.h_i_translator);
 428         else
 429                 fprintf(out, "%sFile ACL: %d    Directory ACL: %d\n",
 430                         prefix,
 431                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 432         fprintf(out, "%sLinks: %d   Blockcount: %d\n",
 433                 prefix, inode->i_links_count, inode->i_blocks);
 434         switch (os) {
 435             case EXT2_OS_LINUX:
 436                 frag = inode->osd2.linux2.l_i_frag;
 437                 fsize = inode->osd2.linux2.l_i_fsize;
 438                 break;
 439             case EXT2_OS_HURD:
 440                 frag = inode->osd2.hurd2.h_i_frag;
 441                 fsize = inode->osd2.hurd2.h_i_fsize;
 442                 break;
 443             case EXT2_OS_MASIX:
 444                 frag = inode->osd2.masix2.m_i_frag;
 445                 fsize = inode->osd2.masix2.m_i_fsize;
 446                 break;
 447             default:
 448                 frag = fsize = 0;
 449         }
 450         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 451                 prefix, inode->i_faddr, frag, fsize);
 452         fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 453                 time_to_string(inode->i_ctime));
 454         fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 455                 time_to_string(inode->i_atime));
 456         fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 457                 time_to_string(inode->i_mtime));
 458         if (inode->i_dtime)
 459           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 460                   time_to_string(inode->i_dtime));
 461         if (LINUX_S_ISLNK(inode->i_mode) && inode->i_blocks == 0)
 462                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 463                         (int) inode->i_size, (char *)inode->i_block);
 464         else if (do_dump_blocks)
 465                 dump_blocks(out, prefix, inode_num);
 466 }
 467
 468 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode inode)
 469 {
 470         FILE    *out;
 471
 472         out = open_pager();
 473         internal_dump_inode(out, "", inode_num, &inode, 1);
 474         close_pager(out);
 475 }
 476
 477 void do_stat(int argc, char *argv[])
 478 {
 479         ext2_ino_t      inode;
 480         struct ext2_inode inode_buf;
 481
 482         if (common_inode_args_process(argc, argv, &inode, 0))
 483                 return;
 484
 485         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 486                 return;
 487
 488         dump_inode(inode,inode_buf);
 489         return;
 490 }
 491
 492 void do_chroot(int argc, char *argv[])
 493 {
 494         ext2_ino_t inode;
 495         int retval;
 496
 497         if (common_inode_args_process(argc, argv, &inode, 0))
 498                 return;
 499
 500         retval = ext2fs_check_directory(current_fs, inode);
 501         if (retval)  {
 502                 com_err(argv[1], retval, "");
 503                 return;
 504         }
 505         root = inode;
 506 }
 507
 508 void do_clri(int argc, char *argv[])
 509 {
 510         ext2_ino_t inode;
 511         struct ext2_inode inode_buf;
 512
 513         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 514                 return;
 515
 516         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 517                 return;
 518         memset(&inode_buf, 0, sizeof(inode_buf));
 519         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 520                 return;
 521 }
 522
 523 void do_freei(int argc, char *argv[])
 524 {
 525         ext2_ino_t inode;
 526
 527         if (common_inode_args_process(argc, argv, &inode,
 528                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 529                 return;
 530
 531         if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 532                 com_err(argv[0], 0, "Warning: inode already clear");
 533         ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
 534         ext2fs_mark_ib_dirty(current_fs);
 535 }
 536
 537 void do_seti(int argc, char *argv[])
 538 {
 539         ext2_ino_t inode;
 540
 541         if (common_inode_args_process(argc, argv, &inode,
 542                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 543                 return;
 544
 545         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 546                 com_err(argv[0], 0, "Warning: inode already set");
 547         ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
 548         ext2fs_mark_ib_dirty(current_fs);
 549 }
 550
 551 void do_testi(int argc, char *argv[])
 552 {
 553         ext2_ino_t inode;
 554
 555         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
 556                 return;
 557
 558         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
 559                 printf("Inode %u is marked in use\n", inode);
 560         else
 561                 printf("Inode %u is not in use\n", inode);
 562 }
 563
 564 void do_freeb(int argc, char *argv[])
 565 {
 566         blk_t block;
 567         int count = 1;
 568
 569         if (common_block_args_process(argc, argv, &block, &count))
 570                 return;
 571         if (check_fs_read_write(argv[0]))
 572                 return;
 573         while (count-- > 0) {
 574                 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
 575                         com_err(argv[0], 0, "Warning: block %d already clear",
 576                                 block);
 577                 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
 578                 block++;
 579         }
 580         ext2fs_mark_bb_dirty(current_fs);
 581 }
 582
 583 void do_setb(int argc, char *argv[])
 584 {
 585         blk_t block;
 586         int count = 1;
 587
 588         if (common_block_args_process(argc, argv, &block, &count))
 589                 return;
 590         if (check_fs_read_write(argv[0]))
 591                 return;
 592         while (count-- > 0) {
 593                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
 594                         com_err(argv[0], 0, "Warning: block %d already set",
 595                                 block);
 596                 ext2fs_mark_block_bitmap(current_fs->block_map,block);
 597                 block++;
 598         }
 599         ext2fs_mark_bb_dirty(current_fs);
 600 }
 601
 602 void do_testb(int argc, char *argv[])
 603 {
 604         blk_t block;
 605         int count = 1;
 606
 607         if (common_block_args_process(argc, argv, &block, &count))
 608                 return;
 609         while (count-- > 0) {
 610                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
 611                         printf("Block %d marked in use\n", block);
 612                 else
 613                         printf("Block %d not in use\n", block);
 614                 block++;
 615         }
 616 }
 617
 618 static void modify_u8(char *com, const char *prompt,
 619                       const char *format, __u8 *val)
 620 {
 621         char buf[200];
 622         unsigned long v;
 623         char *tmp;
 624
 625         sprintf(buf, format, *val);
 626         printf("%30s    [%s] ", prompt, buf);
 627         fgets(buf, sizeof(buf), stdin);
 628         if (buf[strlen (buf) - 1] == '\n')
 629                 buf[strlen (buf) - 1] = '\0';
 630         if (!buf[0])
 631                 return;
 632         v = strtoul(buf, &tmp, 0);
 633         if (*tmp)
 634                 com_err(com, 0, "Bad value - %s", buf);
 635         else
 636                 *val = v;
 637 }
 638
 639 static void modify_u16(char *com, const char *prompt,
 640                        const char *format, __u16 *val)
 641 {
 642         char buf[200];
 643         unsigned long v;
 644         char *tmp;
 645
 646         sprintf(buf, format, *val);
 647         printf("%30s    [%s] ", prompt, buf);
 648         fgets(buf, sizeof(buf), stdin);
 649         if (buf[strlen (buf) - 1] == '\n')
 650                 buf[strlen (buf) - 1] = '\0';
 651         if (!buf[0])
 652                 return;
 653         v = strtoul(buf, &tmp, 0);
 654         if (*tmp)
 655                 com_err(com, 0, "Bad value - %s", buf);
 656         else
 657                 *val = v;
 658 }
 659
 660 static void modify_u32(char *com, const char *prompt,
 661                        const char *format, __u32 *val)
 662 {
 663         char buf[200];
 664         unsigned long v;
 665         char *tmp;
 666
 667         sprintf(buf, format, *val);
 668         printf("%30s    [%s] ", prompt, buf);
 669         fgets(buf, sizeof(buf), stdin);
 670         if (buf[strlen (buf) - 1] == '\n')
 671                 buf[strlen (buf) - 1] = '\0';
 672         if (!buf[0])
 673                 return;
 674         v = strtoul(buf, &tmp, 0);
 675         if (*tmp)
 676                 com_err(com, 0, "Bad value - %s", buf);
 677         else
 678                 *val = v;
 679 }
 680
 681
 682 void do_modify_inode(int argc, char *argv[])
 683 {
 684         struct ext2_inode inode;
 685         ext2_ino_t      inode_num;
 686         int             i;
 687         unsigned char   *frag, *fsize;
 688         char            buf[80];
 689         int             os;
 690         const char      *hex_format = "0x%x";
 691         const char      *octal_format = "0%o";
 692         const char      *decimal_format = "%d";
 693
 694         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
 695                 return;
 696
 697         os = current_fs->super->s_creator_os;
 698
 699         if (debugfs_read_inode(inode_num, &inode, argv[1]))
 700                 return;
 701
 702         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
 703         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
 704         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
 705         modify_u32(argv[0], "Size", decimal_format, &inode.i_size);
 706         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
 707         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
 708         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
 709         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
 710         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
 711         modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks);
 712         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
 713         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
 714 #if 0
 715         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
 716 #endif
 717         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
 718         if (LINUX_S_ISDIR(inode.i_mode))
 719                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
 720         else
 721                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
 722
 723         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
 724                 modify_u32(argv[0], "Translator Block",
 725                             decimal_format, &inode.osd1.hurd1.h_i_translator);
 726
 727         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
 728         switch (os) {
 729             case EXT2_OS_LINUX:
 730                 frag = &inode.osd2.linux2.l_i_frag;
 731                 fsize = &inode.osd2.linux2.l_i_fsize;
 732                 break;
 733             case EXT2_OS_HURD:
 734                 frag = &inode.osd2.hurd2.h_i_frag;
 735                 fsize = &inode.osd2.hurd2.h_i_fsize;
 736                 break;
 737             case EXT2_OS_MASIX:
 738                 frag = &inode.osd2.masix2.m_i_frag;
 739                 fsize = &inode.osd2.masix2.m_i_fsize;
 740                 break;
 741             default:
 742                 frag = fsize = 0;
 743         }
 744         if (frag)
 745                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
 746         if (fsize)
 747                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
 748
 749         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
 750                 sprintf(buf, "Direct Block #%d", i);
 751                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
 752         }
 753         modify_u32(argv[0], "Indirect Block", decimal_format,
 754                     &inode.i_block[EXT2_IND_BLOCK]);
 755         modify_u32(argv[0], "Double Indirect Block", decimal_format,
 756                     &inode.i_block[EXT2_DIND_BLOCK]);
 757         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
 758                     &inode.i_block[EXT2_TIND_BLOCK]);
 759         if (debugfs_write_inode(inode_num, &inode, argv[1]))
 760                 return;
 761 }
 762
 763 void do_change_working_dir(int argc, char *argv[])
 764 {
 765         ext2_ino_t      inode;
 766         int             retval;
 767
 768         if (common_inode_args_process(argc, argv, &inode, 0))
 769                 return;
 770
 771         retval = ext2fs_check_directory(current_fs, inode);
 772         if (retval) {
 773                 com_err(argv[1], retval, "");
 774                 return;
 775         }
 776         cwd = inode;
 777         return;
 778 }
 779
 780 void do_print_working_directory(int argc, char *argv[])
 781 {
 782         int     retval;
 783         char    *pathname = NULL;
 784
 785         if (common_args_process(argc, argv, 1, 1,
 786                                 "print_working_directory", "", 0))
 787                 return;
 788
 789         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
 790         if (retval) {
 791                 com_err(argv[0], retval,
 792                         "while trying to get pathname of cwd");
 793         }
 794         printf("[pwd]   INODE: %6u  PATH: %s\n", cwd, pathname);
 795         free(pathname);
 796         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
 797         if (retval) {
 798                 com_err(argv[0], retval,
 799                         "while trying to get pathname of root");
 800         }
 801         printf("[root]  INODE: %6u  PATH: %s\n", root, pathname);
 802         free(pathname);
 803         return;
 804 }
 805
 806 static void make_link(char *sourcename, char *destname)
 807 {
 808         ext2_ino_t      inode;
 809         int             retval;
 810         ext2_ino_t      dir;
 811         char            *dest, *cp, *basename;
 812
 813         /*
 814          * Get the source inode
 815          */
 816         inode = string_to_inode(sourcename);
 817         if (!inode)
 818                 return;
 819         basename = strrchr(sourcename, '/');
 820         if (basename)
 821                 basename++;
 822         else
 823                 basename = sourcename;
 824         /*
 825          * Figure out the destination.  First see if it exists and is
 826          * a directory.
 827          */
 828         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
 829                 dest = basename;
 830         else {
 831                 /*
 832                  * OK, it doesn't exist.  See if it is
 833                  * '<dir>/basename' or 'basename'
 834                  */
 835                 cp = strrchr(destname, '/');
 836                 if (cp) {
 837                         *cp = 0;
 838                         dir = string_to_inode(destname);
 839                         if (!dir)
 840                                 return;
 841                         dest = cp+1;
 842                 } else {
 843                         dir = cwd;
 844                         dest = destname;
 845                 }
 846         }
 847
 848         retval = ext2fs_link(current_fs, dir, dest, inode, 0);
 849         if (retval)
 850                 com_err("make_link", retval, "");
 851         return;
 852 }
 853
 854
 855 void do_link(int argc, char *argv[])
 856 {
 857         if (common_args_process(argc, argv, 3, 3, "link",
 858                                 "<source file> <dest_name>", CHECK_FS_RW))
 859                 return;
 860
 861         make_link(argv[1], argv[2]);
 862 }
 863
 864 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
 865                             int blockcnt, void *private)
 866 {
 867         blk_t   block;
 868
 869         block = *blocknr;
 870         ext2fs_block_alloc_stats(fs, block, +1);
 871         return 0;
 872 }
 873
 874 void do_undel(int argc, char *argv[])
 875 {
 876         ext2_ino_t      ino;
 877         struct ext2_inode inode;
 878
 879         if (common_args_process(argc, argv, 3, 3, "undelete",
 880                                 "<inode_num> <dest_name>",
 881                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
 882                 return;
 883
 884         ino = string_to_inode(argv[1]);
 885         if (!ino)
 886                 return;
 887
 888         if (debugfs_read_inode(ino, &inode, argv[1]))
 889                 return;
 890
 891         if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
 892                 com_err(argv[1], 0, "Inode is not marked as deleted");
 893                 return;
 894         }
 895
 896         /*
 897          * XXX this function doesn't handle changing the links count on the
 898          * parent directory when undeleting a directory.
 899          */
 900         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
 901         inode.i_dtime = 0;
 902
 903         if (debugfs_write_inode(ino, &inode, argv[0]))
 904                 return;
 905
 906         ext2fs_block_iterate(current_fs, ino, 0, NULL,
 907                              mark_blocks_proc, NULL);
 908
 909         ext2fs_inode_alloc_stats(current_fs, ino, +1);
 910
 911         make_link(argv[1], argv[2]);
 912 }
 913
 914 static void unlink_file_by_name(char *filename)
 915 {
 916         int             retval;
 917         ext2_ino_t      dir;
 918         char            *basename;
 919
 920         basename = strrchr(filename, '/');
 921         if (basename) {
 922                 *basename++ = '\0';
 923                 dir = string_to_inode(filename);
 924                 if (!dir)
 925                         return;
 926         } else {
 927                 dir = cwd;
 928                 basename = filename;
 929         }
 930         retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
 931         if (retval)
 932                 com_err("unlink_file_by_name", retval, "");
 933         return;
 934 }
 935
 936 void do_unlink(int argc, char *argv[])
 937 {
 938         if (common_args_process(argc, argv, 2, 2, "link",
 939                                 "<pathname>", CHECK_FS_RW))
 940                 return;
 941
 942         unlink_file_by_name(argv[1]);
 943 }
 944
 945 void do_find_free_block(int argc, char *argv[])
 946 {
 947         blk_t   free_blk, goal;
 948         int             count;
 949         errcode_t       retval;
 950         char            *tmp;
 951
 952         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
 953                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
 954                 return;
 955         }
 956         if (check_fs_open(argv[0]))
 957                 return;
 958
 959         if (argc > 1) {
 960                 count = strtol(argv[1],&tmp,0);
 961                 if (*tmp) {
 962                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
 963                         return;
 964                 }
 965         } else
 966                 count = 1;
 967
 968         if (argc > 2) {
 969                 goal = strtol(argv[2], &tmp, 0);
 970                 if (*tmp) {
 971                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
 972                         return;
 973                 }
 974         }
 975         else
 976                 goal = current_fs->super->s_first_data_block;
 977
 978         printf("Free blocks found: ");
 979         free_blk = goal - 1;
 980         while (count-- > 0) {
 981                 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
 982                                           &free_blk);
 983                 if (retval) {
 984                         com_err("ext2fs_new_block", retval, "");
 985                         return;
 986                 } else
 987                         printf("%d ", free_blk);
 988         }
 989         printf("\n");
 990 }
 991
 992 void do_find_free_inode(int argc, char *argv[])
 993 {
 994         ext2_ino_t      free_inode, dir;
 995         int             mode;
 996         int             retval;
 997         char            *tmp;
 998
 999         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1000                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1001                 return;
1002         }
1003         if (check_fs_open(argv[0]))
1004                 return;
1005
1006         if (argc > 1) {
1007                 dir = strtol(argv[1], &tmp, 0);
1008                 if (*tmp) {
1009                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1010                         return;
1011                 }
1012         }
1013         else
1014                 dir = root;
1015         if (argc > 2) {
1016                 mode = strtol(argv[2], &tmp, 0);
1017                 if (*tmp) {
1018                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1019                         return;
1020                 }
1021         } else
1022                 mode = 010755;
1023
1024         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1025         if (retval)
1026                 com_err("ext2fs_new_inode", retval, "");
1027         else
1028                 printf("Free inode found: %u\n", free_inode);
1029 }
1030
1031 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1032 {
1033         ext2_file_t     e2_file;
1034         errcode_t       retval;
1035         int             got;
1036         unsigned int    written;
1037         char            buf[8192];
1038         char            *ptr;
1039
1040         retval = ext2fs_file_open(current_fs, newfile,
1041                                   EXT2_FILE_WRITE, &e2_file);
1042         if (retval)
1043                 return retval;
1044
1045         while (1) {
1046                 got = read(fd, buf, sizeof(buf));
1047                 if (got == 0)
1048                         break;
1049                 if (got < 0) {
1050                         retval = errno;
1051                         goto fail;
1052                 }
1053                 ptr = buf;
1054                 while (got > 0) {
1055                         retval = ext2fs_file_write(e2_file, ptr,
1056                                                    got, &written);
1057                         if (retval)
1058                                 goto fail;
1059
1060                         got -= written;
1061                         ptr += written;
1062                 }
1063         }
1064         retval = ext2fs_file_close(e2_file);
1065         return retval;
1066
1067 fail:
1068         (void) ext2fs_file_close(e2_file);
1069         return retval;
1070 }
1071
1072
1073 void do_write(int argc, char *argv[])
1074 {
1075         int             fd;
1076         struct stat     statbuf;
1077         ext2_ino_t      newfile;
1078         errcode_t       retval;
1079         struct ext2_inode inode;
1080
1081         if (common_args_process(argc, argv, 3, 3, "write",
1082                                 "<native file> <new file>", CHECK_FS_RW))
1083                 return;
1084
1085         fd = open(argv[1], O_RDONLY);
1086         if (fd < 0) {
1087                 com_err(argv[1], errno, "");
1088                 return;
1089         }
1090         if (fstat(fd, &statbuf) < 0) {
1091                 com_err(argv[1], errno, "");
1092                 close(fd);
1093                 return;
1094         }
1095
1096         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1097         if (retval) {
1098                 com_err(argv[0], retval, "");
1099                 close(fd);
1100                 return;
1101         }
1102         printf("Allocated inode: %u\n", newfile);
1103         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1104                              EXT2_FT_REG_FILE);
1105         if (retval) {
1106                 com_err(argv[2], retval, "");
1107                 close(fd);
1108                 return;
1109         }
1110         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1111                 com_err(argv[0], 0, "Warning: inode already set");
1112         ext2fs_inode_alloc_stats(current_fs, newfile, +1);
1113         memset(&inode, 0, sizeof(inode));
1114         inode.i_mode = statbuf.st_mode;
1115         inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1116         inode.i_links_count = 1;
1117         inode.i_size = statbuf.st_size;
1118         if (debugfs_write_inode(newfile, &inode, argv[0])) {
1119                 close(fd);
1120                 return;
1121         }
1122         if (LINUX_S_ISREG(inode.i_mode)) {
1123                 retval = copy_file(fd, newfile);
1124                 if (retval)
1125                         com_err("copy_file", retval, "");
1126         }
1127         close(fd);
1128 }
1129
1130 void do_mknod(int argc, char *argv[])
1131 {
1132         unsigned long   mode, major, minor, nr;
1133         ext2_ino_t      newfile;
1134         errcode_t       retval;
1135         struct ext2_inode inode;
1136         int             filetype;
1137
1138         if (check_fs_open(argv[0]))
1139                 return;
1140         if (argc < 3 || argv[2][1]) {
1141         usage:
1142                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1143                 return;
1144         }
1145         mode = minor = major = 0;
1146         switch (argv[2][0]) {
1147                 case 'p':
1148                         mode = LINUX_S_IFIFO;
1149                         filetype = EXT2_FT_FIFO;
1150                         nr = 3;
1151                         break;
1152                 case 'c':
1153                         mode = LINUX_S_IFCHR;
1154                         filetype = EXT2_FT_CHRDEV;
1155                         nr = 5;
1156                         break;
1157                 case 'b':
1158                         mode = LINUX_S_IFBLK;
1159                         filetype = EXT2_FT_BLKDEV;
1160                         nr = 5;
1161                         break;
1162                 default:
1163                         filetype = 0;
1164                         nr = 0;
1165         }
1166         if (nr == 5) {
1167                 major = strtoul(argv[3], argv+3, 0);
1168                 minor = strtoul(argv[4], argv+4, 0);
1169                 if (major > 255 || minor > 255 || argv[3][0] || argv[4][0])
1170                         nr = 0;
1171         }
1172         if (argc != nr)
1173                 goto usage;
1174         if (check_fs_read_write(argv[0]))
1175                 return;
1176         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1177         if (retval) {
1178                 com_err(argv[0], retval, "");
1179                 return;
1180         }
1181         printf("Allocated inode: %u\n", newfile);
1182         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1183         if (retval) {
1184                 if (retval == EXT2_ET_DIR_NO_SPACE) {
1185                         retval = ext2fs_expand_dir(current_fs, cwd);
1186                         if (!retval)
1187                                 retval = ext2fs_link(current_fs, cwd,
1188                                                      argv[1], newfile,
1189                                                      filetype);
1190                 }
1191                 if (retval) {
1192                         com_err(argv[1], retval, "");
1193                         return;
1194                 }
1195         }
1196         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1197                 com_err(argv[0], 0, "Warning: inode already set");
1198         ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1199         ext2fs_mark_ib_dirty(current_fs);
1200         memset(&inode, 0, sizeof(inode));
1201         inode.i_mode = mode;
1202         inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1203         inode.i_block[0] = major*256+minor;
1204         inode.i_links_count = 1;
1205         if (debugfs_write_inode(newfile, &inode, argv[0]))
1206                 return;
1207 }
1208
1209 void do_mkdir(int argc, char *argv[])
1210 {
1211         char    *cp;
1212         ext2_ino_t      parent;
1213         char    *name;
1214         errcode_t retval;
1215
1216         if (common_args_process(argc, argv, 2, 2, "mkdir",
1217                                 "<filename>", CHECK_FS_RW))
1218                 return;
1219
1220         cp = strrchr(argv[1], '/');
1221         if (cp) {
1222                 *cp = 0;
1223                 parent = string_to_inode(argv[1]);
1224                 if (!parent) {
1225                         com_err(argv[1], ENOENT, "");
1226                         return;
1227                 }
1228                 name = cp+1;
1229         } else {
1230                 parent = cwd;
1231                 name = argv[1];
1232         }
1233
1234
1235         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1236         if (retval) {
1237                 com_err("ext2fs_mkdir", retval, "");
1238                 return;
1239         }
1240
1241 }
1242
1243 void do_rmdir(int argc, char *argv[])
1244 {
1245         printf("Unimplemented\n");
1246 }
1247
1248
1249 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1250                                int blockcnt, void *private)
1251 {
1252         blk_t   block;
1253
1254         block = *blocknr;
1255         ext2fs_block_alloc_stats(fs, block, -1);
1256         return 0;
1257 }
1258
1259 static void kill_file_by_inode(ext2_ino_t inode)
1260 {
1261         struct ext2_inode inode_buf;
1262
1263         if (debugfs_read_inode(inode, &inode_buf, 0))
1264                 return;
1265         inode_buf.i_dtime = time(NULL);
1266         if (debugfs_write_inode(inode, &inode_buf, 0))
1267                 return;
1268
1269         printf("Kill file by inode %u\n", inode);
1270         ext2fs_block_iterate(current_fs, inode, 0, NULL,
1271                              release_blocks_proc, NULL);
1272         printf("\n");
1273         ext2fs_inode_alloc_stats(current_fs, inode, -1);
1274 }
1275
1276
1277 void do_kill_file(int argc, char *argv[])
1278 {
1279         ext2_ino_t inode_num;
1280
1281         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1282                 return;
1283
1284         kill_file_by_inode(inode_num);
1285 }
1286
1287 void do_rm(int argc, char *argv[])
1288 {
1289         int retval;
1290         ext2_ino_t inode_num;
1291         struct ext2_inode inode;
1292
1293         if (common_args_process(argc, argv, 2, 2, "rm",
1294                                 "<filename>", CHECK_FS_RW))
1295                 return;
1296
1297         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1298         if (retval) {
1299                 com_err(argv[0], retval, "while trying to resolve filename");
1300                 return;
1301         }
1302
1303         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1304                 return;
1305
1306         if (LINUX_S_ISDIR(inode.i_mode)) {
1307                 com_err(argv[0], 0, "file is a directory");
1308                 return;
1309         }
1310
1311         --inode.i_links_count;
1312         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1313                 return;
1314
1315         unlink_file_by_name(argv[1]);
1316         if (inode.i_links_count == 0)
1317                 kill_file_by_inode(inode_num);
1318 }
1319
1320 void do_show_debugfs_params(int argc, char *argv[])
1321 {
1322         FILE *out = stdout;
1323
1324         if (current_fs)
1325                 fprintf(out, "Open mode: read-%s\n",
1326                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1327         fprintf(out, "Filesystem in use: %s\n",
1328                 current_fs ? current_fs->device_name : "--none--");
1329 }
1330
1331 void do_expand_dir(int argc, char *argv[])
1332 {
1333         ext2_ino_t inode;
1334         int retval;
1335
1336         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1337                 return;
1338
1339         retval = ext2fs_expand_dir(current_fs, inode);
1340         if (retval)
1341                 com_err("ext2fs_expand_dir", retval, "");
1342         return;
1343 }
1344
1345 void do_features(int argc, char *argv[])
1346 {
1347         int     i;
1348
1349         if (check_fs_open(argv[0]))
1350                 return;
1351
1352         if ((argc != 1) && check_fs_read_write(argv[0]))
1353                 return;
1354         for (i=1; i < argc; i++) {
1355                 if (e2p_edit_feature(argv[i],
1356                                      &current_fs->super->s_feature_compat, 0))
1357                         com_err(argv[0], 0, "Unknown feature: %s\n",
1358                                 argv[i]);
1359                 else
1360                         ext2fs_mark_super_dirty(current_fs);
1361         }
1362         print_features(current_fs->super, stdout);
1363 }
1364
1365 static int source_file(const char *cmd_file, int sci_idx)
1366 {
1367         FILE            *f;
1368         char            buf[256];
1369         char            *cp;
1370         int             exit_status = 0;
1371         int             retval;
1372
1373         if (strcmp(cmd_file, "-") == 0)
1374                 f = stdin;
1375         else {
1376                 f = fopen(cmd_file, "r");
1377                 if (!f) {
1378                         perror(cmd_file);
1379                         exit(1);
1380                 }
1381         }
1382         setbuf(stdout, NULL);
1383         setbuf(stderr, NULL);
1384         while (!feof(f)) {
1385                 if (fgets(buf, sizeof(buf), f) == NULL)
1386                         break;
1387                 cp = strchr(buf, '\n');
1388                 if (cp)
1389                         *cp = 0;
1390                 cp = strchr(buf, '\r');
1391                 if (cp)
1392                         *cp = 0;
1393                 printf("debugfs: %s\n", buf);
1394                 retval = ss_execute_line(sci_idx, buf);
1395                 if (retval) {
1396                         ss_perror(sci_idx, retval, buf);
1397                         exit_status++;
1398                 }
1399         }
1400         return exit_status;
1401 }
1402
1403 int main(int argc, char **argv)
1404 {
1405         int             retval;
1406         int             sci_idx;
1407         const char      *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1408         int             c;
1409         int             open_flags = 0;
1410         char            *request = 0;
1411         int             exit_status = 0;
1412         char            *cmd_file = 0;
1413         blk_t           superblock = 0;
1414         blk_t           blocksize = 0;
1415         int             catastrophic = 0;
1416
1417         initialize_ext2_error_table();
1418         fprintf (stderr, "debugfs %s (%s)\n", E2FSPROGS_VERSION,
1419                  E2FSPROGS_DATE);
1420
1421         while ((c = getopt (argc, argv, "iwcR:f:b:s:V")) != EOF) {
1422                 switch (c) {
1423                 case 'R':
1424                         request = optarg;
1425                         break;
1426                 case 'f':
1427                         cmd_file = optarg;
1428                         break;
1429                 case 'i':
1430                         open_flags |= EXT2_FLAG_IMAGE_FILE;
1431                         break;
1432                 case 'w':
1433                         open_flags |= EXT2_FLAG_RW;
1434                         break;
1435                 case 'b':
1436                         blocksize = parse_ulong(argv[0], optarg,
1437                                                 "block size", 0);
1438                         break;
1439                 case 's':
1440                         superblock = parse_ulong(argv[0], optarg,
1441                                                  "superblock number", 0);
1442                         break;
1443                 case 'c':
1444                         catastrophic = 1;
1445                         break;
1446                 case 'V':
1447                         /* Print version number and exit */
1448                         fprintf(stderr, "\tUsing %s\n",
1449                                 error_message(EXT2_ET_BASE));
1450                         exit(0);
1451                 default:
1452                         com_err(argv[0], 0, usage);
1453                         return 1;
1454                 }
1455         }
1456         if (optind < argc)
1457                 open_filesystem(argv[optind], open_flags,
1458                                 superblock, blocksize, catastrophic);
1459
1460         sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1461                                        &debug_cmds, &retval);
1462         if (retval) {
1463                 ss_perror(sci_idx, retval, "creating invocation");
1464                 exit(1);
1465         }
1466
1467         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1468         if (retval) {
1469                 ss_perror(sci_idx, retval, "adding standard requests");
1470                 exit (1);
1471         }
1472         if (request) {
1473                 retval = 0;
1474                 retval = ss_execute_line(sci_idx, request);
1475                 if (retval) {
1476                         ss_perror(sci_idx, retval, request);
1477                         exit_status++;
1478                 }
1479         } else if (cmd_file) {
1480                 exit_status = source_file(cmd_file, sci_idx);
1481         } else {
1482                 ss_listen(sci_idx);
1483         }
1484
1485         if (current_fs)
1486                 close_filesystem();
1487
1488         return exit_status;
1489 }