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[thirdparty/e2fsprogs.git] / 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 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;
99 int catastrophic = 0;
100 blk_t superblock = 0;
101 blk_t blocksize = 0;
102 char *tmp;
103 int open_flags = 0;
104
105 optind = 0;
106 #ifdef HAVE_OPTRESET
107 optreset = 1; /* Makes BSD getopt happy */
108 #endif
109 while ((c = getopt (argc, argv, "wfcb:s:")) != EOF) {
110 switch (c) {
111 case 'w':
112 open_flags |= EXT2_FLAG_RW;
113 break;
114 case 'f':
115 open_flags |= EXT2_FLAG_FORCE;
116 break;
117 case 'c':
118 catastrophic = 1;
119 break;
120 case 'b':
121 blocksize = strtoul(optarg, &tmp, 0);
122 if (*tmp) {
123 com_err(argv[0], 0,
124 "Bad block size - %s", optarg);
125 return;
126 }
127 break;
128 case 's':
129 superblock = strtoul(optarg, &tmp, 0);
130 if (*tmp) {
131 com_err(argv[0], 0,
132 "Bad superblock number - %s", optarg);
133 return;
134 }
135 break;
136 default:
137 com_err(argv[0], 0, usage);
138 return;
139 }
140 }
141 if (optind != argc-1) {
142 com_err(argv[0], 0, usage);
143 return;
144 }
145 if (check_fs_not_open(argv[0]))
146 return;
147 open_filesystem(argv[optind], open_flags,
148 superblock, blocksize, catastrophic);
149 }
150
151 void do_lcd(int argc, char **argv)
152 {
153 const char *usage = "Usage: lcd <native dir>";
154
155 if (argc != 2) {
156 com_err(argv[0], 0, usage);
157 return;
158 }
159
160 if (chdir(argv[1]) == -1) {
161 com_err(argv[0], errno,
162 "while trying to change native directory to %s",
163 argv[1]);
164 return;
165 }
166 }
167
168 static void close_filesystem(NOARGS)
169 {
170 int retval;
171
172 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
173 retval = ext2fs_write_inode_bitmap(current_fs);
174 if (retval)
175 com_err("ext2fs_write_inode_bitmap", retval, "");
176 }
177 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
178 retval = ext2fs_write_block_bitmap(current_fs);
179 if (retval)
180 com_err("ext2fs_write_block_bitmap", retval, "");
181 }
182 retval = ext2fs_close(current_fs);
183 if (retval)
184 com_err("ext2fs_close", retval, "");
185 current_fs = NULL;
186 return;
187 }
188
189 void do_close_filesys(int argc, char **argv)
190 {
191 if (argc > 1) {
192 com_err(argv[0], 0, "Usage: close_filesys");
193 return;
194 }
195 if (check_fs_open(argv[0]))
196 return;
197 close_filesystem();
198 }
199
200 void do_init_filesys(int argc, char **argv)
201 {
202 const char *usage = "Usage: initialize <device> <blocksize>";
203 struct ext2_super_block param;
204 errcode_t retval;
205 char *tmp;
206
207 if (argc != 3) {
208 com_err(argv[0], 0, usage);
209 return;
210 }
211 if (check_fs_not_open(argv[0]))
212 return;
213
214 memset(&param, 0, sizeof(struct ext2_super_block));
215 param.s_blocks_count = strtoul(argv[2], &tmp, 0);
216 if (*tmp) {
217 com_err(argv[0], 0, "Bad blocks count - %s", argv[2]);
218 return;
219 }
220 retval = ext2fs_initialize(argv[1], 0, &param,
221 unix_io_manager, &current_fs);
222 if (retval) {
223 com_err(argv[1], retval, "while initializing filesystem");
224 current_fs = NULL;
225 return;
226 }
227 root = cwd = EXT2_ROOT_INO;
228 return;
229 }
230
231 static void print_features(struct ext2fs_sb * s, FILE *f)
232 {
233 #ifdef EXT2_DYNAMIC_REV
234 int i, j, printed=0;
235 __u32 *mask = &s->s_feature_compat, m;
236
237 printf ("Filesystem features:");
238 for (i=0; i <3; i++,mask++) {
239 for (j=0,m=1; j < 32; j++, m<<=1) {
240 if (*mask & m) {
241 fprintf(f, " %s", e2p_feature2string(i, m));
242 printed++;
243 }
244 }
245 }
246 if (printed == 0)
247 printf("(none)");
248 printf("\n");
249 #endif
250 }
251
252 void do_show_super_stats(int argc, char *argv[])
253 {
254 int i;
255 FILE *out;
256 struct ext2fs_sb *sb;
257 struct ext2_group_desc *gdp;
258 int c, header_only = 0;
259 char buf[80];
260 const char *none = "(none)";
261 const char *usage = "Usage: show_super [-h]";
262
263 optind = 0;
264 #ifdef HAVE_OPTRESET
265 optreset = 1; /* Makes BSD getopt happy */
266 #endif
267 while ((c = getopt (argc, argv, "h")) != EOF) {
268 switch (c) {
269 case 'h':
270 header_only++;
271 break;
272 default:
273 com_err(argv[0], 0, usage);
274 return;
275 }
276 }
277 if (optind != argc) {
278 com_err(argv[0], 0, usage);
279 return;
280 }
281 if (check_fs_open(argv[0]))
282 return;
283 out = open_pager();
284
285 list_super2(current_fs->super, out);
286
287 if (header_only) {
288 close_pager(out);
289 return;
290 }
291
292 gdp = &current_fs->group_desc[0];
293 for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
294 fprintf(out, " Group %2d: block bitmap at %d, "
295 "inode bitmap at %d, "
296 "inode table at %d\n"
297 " %d free block%s, "
298 "%d free inode%s, "
299 "%d used director%s\n",
300 i, gdp->bg_block_bitmap,
301 gdp->bg_inode_bitmap, gdp->bg_inode_table,
302 gdp->bg_free_blocks_count,
303 gdp->bg_free_blocks_count != 1 ? "s" : "",
304 gdp->bg_free_inodes_count,
305 gdp->bg_free_inodes_count != 1 ? "s" : "",
306 gdp->bg_used_dirs_count,
307 gdp->bg_used_dirs_count != 1 ? "ies" : "y");
308 close_pager(out);
309 }
310
311 void do_dirty_filesys(int argc, char **argv)
312 {
313 if (check_fs_open(argv[0]))
314 return;
315 if (check_fs_read_write(argv[0]))
316 return;
317
318 if (argv[1] && !strcmp(argv[1], "-clean"))
319 current_fs->super->s_state |= EXT2_VALID_FS;
320 else
321 current_fs->super->s_state &= ~EXT2_VALID_FS;
322 ext2fs_mark_super_dirty(current_fs);
323 }
324
325 struct list_blocks_struct {
326 FILE *f;
327 int total;
328 blk_t first_block, last_block;
329 int first_bcnt, last_bcnt;
330 int first;
331 };
332
333 static void finish_range(struct list_blocks_struct *lb)
334 {
335 if (lb->first_block == 0)
336 return;
337 if (lb->first)
338 lb->first = 0;
339 else
340 fprintf(lb->f, ", ");
341 if (lb->first_block == lb->last_block)
342 fprintf(lb->f, "(%d):%d", lb->first_bcnt, lb->first_block);
343 else
344 fprintf(lb->f, "(%d-%d):%d-%d", lb->first_bcnt,
345 lb->last_bcnt, lb->first_block, lb->last_block);
346 lb->first_block = 0;
347 }
348
349 static int list_blocks_proc(ext2_filsys fs, blk_t *blocknr, int blockcnt,
350 void *private)
351 {
352 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
353
354 lb->total++;
355 if (blockcnt >= 0) {
356 /*
357 * See if we can add on to the existing range (if it exists)
358 */
359 if (lb->first_block &&
360 (lb->last_block+1 == *blocknr) &&
361 (lb->last_bcnt+1 == blockcnt)) {
362 lb->last_block = *blocknr;
363 lb->last_bcnt = blockcnt;
364 return 0;
365 }
366 /*
367 * Start a new range.
368 */
369 finish_range(lb);
370 lb->first_block = lb->last_block = *blocknr;
371 lb->first_bcnt = lb->last_bcnt = blockcnt;
372 return 0;
373 }
374 /*
375 * Not a normal block. Always force a new range.
376 */
377 finish_range(lb);
378 if (lb->first)
379 lb->first = 0;
380 else
381 fprintf(lb->f, ", ");
382 if (blockcnt == -1)
383 fprintf(lb->f, "(IND):%d", *blocknr);
384 else if (blockcnt == -2)
385 fprintf(lb->f, "(DIND):%d", *blocknr);
386 else if (blockcnt == -3)
387 fprintf(lb->f, "(TIND):%d", *blocknr);
388 return 0;
389 }
390
391
392 static void dump_blocks(FILE *f, ino_t inode)
393 {
394 struct list_blocks_struct lb;
395
396 fprintf(f, "BLOCKS:\n");
397 lb.total = 0;
398 lb.first_block = 0;
399 lb.f = f;
400 lb.first = 1;
401 ext2fs_block_iterate(current_fs, inode, 0, NULL,
402 list_blocks_proc, (void *)&lb);
403 finish_range(&lb);
404 if (lb.total)
405 fprintf(f, "\nTOTAL: %d\n", lb.total);
406 fprintf(f,"\n");
407 }
408
409
410 static void dump_inode(ino_t inode_num, struct ext2_inode inode)
411 {
412 const char *i_type;
413 FILE *out;
414 char frag, fsize;
415 int os = current_fs->super->s_creator_os;
416
417 out = open_pager();
418 if (LINUX_S_ISDIR(inode.i_mode)) i_type = "directory";
419 else if (LINUX_S_ISREG(inode.i_mode)) i_type = "regular";
420 else if (LINUX_S_ISLNK(inode.i_mode)) i_type = "symlink";
421 else if (LINUX_S_ISBLK(inode.i_mode)) i_type = "block special";
422 else if (LINUX_S_ISCHR(inode.i_mode)) i_type = "character special";
423 else if (LINUX_S_ISFIFO(inode.i_mode)) i_type = "FIFO";
424 else if (LINUX_S_ISSOCK(inode.i_mode)) i_type = "socket";
425 else i_type = "bad type";
426 fprintf(out, "Inode: %ld Type: %s ", inode_num, i_type);
427 fprintf(out, "Mode: %04o Flags: 0x%x Generation: %u\n",
428 inode.i_mode & 0777, inode.i_flags, inode.i_generation);
429 fprintf(out, "User: %5d Group: %5d Size: ",
430 inode.i_uid, inode.i_gid);
431 if (LINUX_S_ISDIR(inode.i_mode))
432 fprintf(out, "%d\n", inode.i_size);
433 else {
434 __u64 i_size = (inode.i_size |
435 ((unsigned long long)inode.i_size_high << 32));
436
437 fprintf(out, "%lld\n", i_size);
438 }
439 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
440 fprintf(out,
441 "File ACL: %d Directory ACL: %d Translator: %d\n",
442 inode.i_file_acl, LINUX_S_ISDIR(inode.i_mode) ? inode.i_dir_acl : 0,
443 inode.osd1.hurd1.h_i_translator);
444 else
445 fprintf(out, "File ACL: %d Directory ACL: %d\n",
446 inode.i_file_acl, LINUX_S_ISDIR(inode.i_mode) ? inode.i_dir_acl : 0);
447 fprintf(out, "Links: %d Blockcount: %d\n", inode.i_links_count,
448 inode.i_blocks);
449 switch (os) {
450 case EXT2_OS_LINUX:
451 frag = inode.osd2.linux2.l_i_frag;
452 fsize = inode.osd2.linux2.l_i_fsize;
453 break;
454 case EXT2_OS_HURD:
455 frag = inode.osd2.hurd2.h_i_frag;
456 fsize = inode.osd2.hurd2.h_i_fsize;
457 break;
458 case EXT2_OS_MASIX:
459 frag = inode.osd2.masix2.m_i_frag;
460 fsize = inode.osd2.masix2.m_i_fsize;
461 break;
462 default:
463 frag = fsize = 0;
464 }
465 fprintf(out, "Fragment: Address: %d Number: %d Size: %d\n",
466 inode.i_faddr, frag, fsize);
467 fprintf(out, "ctime: 0x%08x -- %s", inode.i_ctime,
468 time_to_string(inode.i_ctime));
469 fprintf(out, "atime: 0x%08x -- %s", inode.i_atime,
470 time_to_string(inode.i_atime));
471 fprintf(out, "mtime: 0x%08x -- %s", inode.i_mtime,
472 time_to_string(inode.i_mtime));
473 if (inode.i_dtime)
474 fprintf(out, "dtime: 0x%08x -- %s", inode.i_dtime,
475 time_to_string(inode.i_dtime));
476 if (LINUX_S_ISLNK(inode.i_mode) && inode.i_blocks == 0)
477 fprintf(out, "Fast_link_dest: %.*s\n",
478 inode.i_size, (char *)inode.i_block);
479 else
480 dump_blocks(out, inode_num);
481 close_pager(out);
482 }
483
484
485 void do_stat(int argc, char *argv[])
486 {
487 ino_t inode;
488 struct ext2_inode inode_buf;
489 int retval;
490
491 if (argc != 2) {
492 com_err(argv[0], 0, "Usage: stat <file>");
493 return;
494 }
495 if (check_fs_open(argv[0]))
496 return;
497 inode = string_to_inode(argv[1]);
498 if (!inode)
499 return;
500
501 retval = ext2fs_read_inode(current_fs, inode, &inode_buf);
502 if (retval)
503 {
504 com_err(argv[0], retval, "while trying to read inode %d", inode);
505 return;
506 }
507
508 dump_inode(inode,inode_buf);
509 return;
510 }
511
512 void do_chroot(int argc, char *argv[])
513 {
514 ino_t inode;
515 int retval;
516
517 if (argc != 2) {
518 com_err(argv[0], 0, "Usage: chroot <file>");
519 return;
520 }
521 if (check_fs_open(argv[0]))
522 return;
523 inode = string_to_inode(argv[1]);
524 if (!inode)
525 return;
526
527 retval = ext2fs_check_directory(current_fs, inode);
528 if (retval) {
529 com_err(argv[1], retval, "");
530 return;
531 }
532 root = inode;
533 }
534
535 void do_clri(int argc, char *argv[])
536 {
537 ino_t inode;
538 int retval;
539 struct ext2_inode inode_buf;
540
541 if (argc != 2) {
542 com_err(argv[0], 0, "Usage: clri <file>");
543 return;
544 }
545 if (check_fs_open(argv[0]))
546 return;
547 if (check_fs_read_write(argv[0]))
548 return;
549 inode = string_to_inode(argv[1]);
550 if (!inode)
551 return;
552
553 retval = ext2fs_read_inode(current_fs, inode, &inode_buf);
554 if (retval) {
555 com_err(argv[0], retval, "while trying to read inode %d",
556 inode);
557 return;
558 }
559 memset(&inode_buf, 0, sizeof(inode_buf));
560 retval = ext2fs_write_inode(current_fs, inode, &inode_buf);
561 if (retval) {
562 com_err(argv[0], retval, "while trying to write inode %d",
563 inode);
564 return;
565 }
566 }
567
568 void do_freei(int argc, char *argv[])
569 {
570 ino_t inode;
571
572 if (argc != 2) {
573 com_err(argv[0], 0, "Usage: freei <file>");
574 return;
575 }
576 if (check_fs_open(argv[0]))
577 return;
578 if (check_fs_read_write(argv[0]))
579 return;
580 inode = string_to_inode(argv[1]);
581 if (!inode)
582 return;
583
584 if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
585 com_err(argv[0], 0, "Warning: inode already clear");
586 ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
587 ext2fs_mark_ib_dirty(current_fs);
588 }
589
590 void do_seti(int argc, char *argv[])
591 {
592 ino_t inode;
593
594 if (argc != 2) {
595 com_err(argv[0], 0, "Usage: seti <file>");
596 return;
597 }
598 if (check_fs_open(argv[0]))
599 return;
600 if (check_fs_read_write(argv[0]))
601 return;
602 inode = string_to_inode(argv[1]);
603 if (!inode)
604 return;
605
606 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
607 com_err(argv[0], 0, "Warning: inode already set");
608 ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
609 ext2fs_mark_ib_dirty(current_fs);
610 }
611
612 void do_testi(int argc, char *argv[])
613 {
614 ino_t inode;
615
616 if (argc != 2) {
617 com_err(argv[0], 0, "Usage: testi <file>");
618 return;
619 }
620 if (check_fs_open(argv[0]))
621 return;
622 if (check_fs_bitmaps(argv[0]))
623 return;
624 inode = string_to_inode(argv[1]);
625 if (!inode)
626 return;
627
628 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
629 printf("Inode %ld is marked in use\n", inode);
630 else
631 printf("Inode %ld is not in use\n", inode);
632 }
633
634
635 void do_freeb(int argc, char *argv[])
636 {
637 blk_t block;
638 char *tmp;
639
640 if (argc != 2) {
641 com_err(argv[0], 0, "Usage: freeb <block>");
642 return;
643 }
644 if (check_fs_open(argv[0]))
645 return;
646 if (check_fs_read_write(argv[0]))
647 return;
648 block = strtoul(argv[1], &tmp, 0);
649 if (!block || *tmp) {
650 com_err(argv[0], 0, "No block 0");
651 return;
652 }
653 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
654 com_err(argv[0], 0, "Warning: block already clear");
655 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
656 ext2fs_mark_bb_dirty(current_fs);
657 }
658
659 void do_setb(int argc, char *argv[])
660 {
661 blk_t block;
662 char *tmp;
663
664 if (argc != 2) {
665 com_err(argv[0], 0, "Usage: setb <block>");
666 return;
667 }
668 if (check_fs_open(argv[0]))
669 return;
670 if (check_fs_read_write(argv[0]))
671 return;
672 block = strtoul(argv[1], &tmp, 0);
673 if (!block || *tmp) {
674 com_err(argv[0], 0, "No block 0");
675 return;
676 }
677 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
678 com_err(argv[0], 0, "Warning: block already set");
679 ext2fs_mark_block_bitmap(current_fs->block_map,block);
680 ext2fs_mark_bb_dirty(current_fs);
681 }
682
683 void do_testb(int argc, char *argv[])
684 {
685 blk_t block;
686 char *tmp;
687
688 if (argc != 2) {
689 com_err(argv[0], 0, "Usage: testb <block>");
690 return;
691 }
692 if (check_fs_open(argv[0]))
693 return;
694 if (check_fs_bitmaps(argv[0]))
695 return;
696 block = strtoul(argv[1], &tmp, 0);
697 if (!block || *tmp) {
698 com_err(argv[0], 0, "No block 0");
699 return;
700 }
701 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
702 printf("Block %d marked in use\n", block);
703 else printf("Block %d not in use\n", block);
704 }
705
706 static void modify_u8(char *com, const char *prompt,
707 const char *format, __u8 *val)
708 {
709 char buf[200];
710 unsigned long v;
711 char *tmp;
712
713 sprintf(buf, format, *val);
714 printf("%30s [%s] ", prompt, buf);
715 fgets(buf, sizeof(buf), stdin);
716 if (buf[strlen (buf) - 1] == '\n')
717 buf[strlen (buf) - 1] = '\0';
718 if (!buf[0])
719 return;
720 v = strtoul(buf, &tmp, 0);
721 if (*tmp)
722 com_err(com, 0, "Bad value - %s", buf);
723 else
724 *val = v;
725 }
726
727 static void modify_u16(char *com, const char *prompt,
728 const char *format, __u16 *val)
729 {
730 char buf[200];
731 unsigned long v;
732 char *tmp;
733
734 sprintf(buf, format, *val);
735 printf("%30s [%s] ", prompt, buf);
736 fgets(buf, sizeof(buf), stdin);
737 if (buf[strlen (buf) - 1] == '\n')
738 buf[strlen (buf) - 1] = '\0';
739 if (!buf[0])
740 return;
741 v = strtoul(buf, &tmp, 0);
742 if (*tmp)
743 com_err(com, 0, "Bad value - %s", buf);
744 else
745 *val = v;
746 }
747
748 static void modify_u32(char *com, const char *prompt,
749 const char *format, __u32 *val)
750 {
751 char buf[200];
752 unsigned long v;
753 char *tmp;
754
755 sprintf(buf, format, *val);
756 printf("%30s [%s] ", prompt, buf);
757 fgets(buf, sizeof(buf), stdin);
758 if (buf[strlen (buf) - 1] == '\n')
759 buf[strlen (buf) - 1] = '\0';
760 if (!buf[0])
761 return;
762 v = strtoul(buf, &tmp, 0);
763 if (*tmp)
764 com_err(com, 0, "Bad value - %s", buf);
765 else
766 *val = v;
767 }
768
769
770 void do_modify_inode(int argc, char *argv[])
771 {
772 struct ext2_inode inode;
773 ino_t inode_num;
774 int i;
775 errcode_t retval;
776 unsigned char *frag, *fsize;
777 char buf[80];
778 int os = current_fs->super->s_creator_os;
779 const char *hex_format = "0x%x";
780 const char *octal_format = "0%o";
781 const char *decimal_format = "%d";
782
783 if (argc != 2) {
784 com_err(argv[0], 0, "Usage: modify_inode <file>");
785 return;
786 }
787 if (check_fs_open(argv[0]))
788 return;
789 if (check_fs_read_write(argv[0]))
790 return;
791
792 inode_num = string_to_inode(argv[1]);
793 if (!inode_num)
794 return;
795
796 retval = ext2fs_read_inode(current_fs, inode_num, &inode);
797 if (retval) {
798 com_err(argv[1], retval, "while trying to read inode %d",
799 inode_num);
800 return;
801 }
802
803 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
804 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
805 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
806 modify_u32(argv[0], "Size", decimal_format, &inode.i_size);
807 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
808 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
809 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
810 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
811 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
812 modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks);
813 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
814 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
815 #if 0
816 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
817 #endif
818 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
819 if (LINUX_S_ISDIR(inode.i_mode))
820 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
821 else
822 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
823
824 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
825 modify_u32(argv[0], "Translator Block",
826 decimal_format, &inode.osd1.hurd1.h_i_translator);
827
828 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
829 switch (os) {
830 case EXT2_OS_LINUX:
831 frag = &inode.osd2.linux2.l_i_frag;
832 fsize = &inode.osd2.linux2.l_i_fsize;
833 break;
834 case EXT2_OS_HURD:
835 frag = &inode.osd2.hurd2.h_i_frag;
836 fsize = &inode.osd2.hurd2.h_i_fsize;
837 break;
838 case EXT2_OS_MASIX:
839 frag = &inode.osd2.masix2.m_i_frag;
840 fsize = &inode.osd2.masix2.m_i_fsize;
841 break;
842 default:
843 frag = fsize = 0;
844 }
845 if (frag)
846 modify_u8(argv[0], "Fragment number", decimal_format, frag);
847 if (fsize)
848 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
849
850 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
851 sprintf(buf, "Direct Block #%d", i);
852 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
853 }
854 modify_u32(argv[0], "Indirect Block", decimal_format,
855 &inode.i_block[EXT2_IND_BLOCK]);
856 modify_u32(argv[0], "Double Indirect Block", decimal_format,
857 &inode.i_block[EXT2_DIND_BLOCK]);
858 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
859 &inode.i_block[EXT2_TIND_BLOCK]);
860 retval = ext2fs_write_inode(current_fs, inode_num, &inode);
861 if (retval) {
862 com_err(argv[1], retval, "while trying to write inode %d",
863 inode_num);
864 return;
865 }
866 }
867
868 void do_change_working_dir(int argc, char *argv[])
869 {
870 ino_t inode;
871 int retval;
872
873 if (argc != 2) {
874 com_err(argv[0], 0, "Usage: cd <file>");
875 return;
876 }
877 if (check_fs_open(argv[0]))
878 return;
879
880 inode = string_to_inode(argv[1]);
881 if (!inode)
882 return;
883
884 retval = ext2fs_check_directory(current_fs, inode);
885 if (retval) {
886 com_err(argv[1], retval, "");
887 return;
888 }
889 cwd = inode;
890 return;
891 }
892
893 void do_print_working_directory(int argc, char *argv[])
894 {
895 int retval;
896 char *pathname = NULL;
897
898 if (argc > 1) {
899 com_err(argv[0], 0, "Usage: print_working_directory");
900 return;
901 }
902 if (check_fs_open(argv[0]))
903 return;
904
905 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
906 if (retval) {
907 com_err(argv[0], retval,
908 "while trying to get pathname of cwd");
909 }
910 printf("[pwd] INODE: %6ld PATH: %s\n", cwd, pathname);
911 free(pathname);
912 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
913 if (retval) {
914 com_err(argv[0], retval,
915 "while trying to get pathname of root");
916 }
917 printf("[root] INODE: %6ld PATH: %s\n", root, pathname);
918 free(pathname);
919 return;
920 }
921
922 static void make_link(char *sourcename, char *destname)
923 {
924 ino_t inode;
925 int retval;
926 ino_t dir;
927 char *dest, *cp, *basename;
928
929 /*
930 * Get the source inode
931 */
932 inode = string_to_inode(sourcename);
933 if (!inode)
934 return;
935 basename = strrchr(sourcename, '/');
936 if (basename)
937 basename++;
938 else
939 basename = sourcename;
940 /*
941 * Figure out the destination. First see if it exists and is
942 * a directory.
943 */
944 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
945 dest = basename;
946 else {
947 /*
948 * OK, it doesn't exist. See if it is
949 * '<dir>/basename' or 'basename'
950 */
951 cp = strrchr(destname, '/');
952 if (cp) {
953 *cp = 0;
954 dir = string_to_inode(destname);
955 if (!dir)
956 return;
957 dest = cp+1;
958 } else {
959 dir = cwd;
960 dest = destname;
961 }
962 }
963
964 retval = ext2fs_link(current_fs, dir, dest, inode, 0);
965 if (retval)
966 com_err("make_link", retval, "");
967 return;
968 }
969
970
971 void do_link(int argc, char *argv[])
972 {
973 if (argc != 3) {
974 com_err(argv[0], 0, "Usage: link <source_file> <dest_name>");
975 return;
976 }
977 if (check_fs_open(argv[0]))
978 return;
979
980 make_link(argv[1], argv[2]);
981 }
982
983 static void unlink_file_by_name(char *filename)
984 {
985 int retval;
986 ino_t dir;
987 char *basename;
988
989 basename = strrchr(filename, '/');
990 if (basename) {
991 *basename++ = '\0';
992 dir = string_to_inode(filename);
993 if (!dir)
994 return;
995 } else {
996 dir = cwd;
997 basename = filename;
998 }
999 retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
1000 if (retval)
1001 com_err("unlink_file_by_name", retval, "");
1002 return;
1003 }
1004
1005 void do_unlink(int argc, char *argv[])
1006 {
1007 if (argc != 2) {
1008 com_err(argv[0], 0, "Usage: unlink <pathname>");
1009 return;
1010 }
1011 if (check_fs_open(argv[0]))
1012 return;
1013
1014 unlink_file_by_name(argv[1]);
1015 }
1016
1017 void do_find_free_block(int argc, char *argv[])
1018 {
1019 blk_t free_blk, goal;
1020 errcode_t retval;
1021 char *tmp;
1022
1023 if ((argc > 2) || (argc==2 && *argv[1] == '?')) {
1024 com_err(argv[0], 0, "Usage: find_free_block [goal]");
1025 return;
1026 }
1027 if (check_fs_open(argv[0]))
1028 return;
1029
1030 if (argc > 1) {
1031 goal = strtol(argv[1], &tmp, 0);
1032 if (*tmp) {
1033 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1034 return;
1035 }
1036 }
1037 else
1038 goal = current_fs->super->s_first_data_block;
1039
1040 retval = ext2fs_new_block(current_fs, goal, 0, &free_blk);
1041 if (retval)
1042 com_err("ext2fs_new_block", retval, "");
1043 else
1044 printf("Free block found: %d\n", free_blk);
1045
1046 }
1047
1048 void do_find_free_inode(int argc, char *argv[])
1049 {
1050 ino_t free_inode, dir;
1051 int mode;
1052 int retval;
1053 char *tmp;
1054
1055 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1056 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1057 return;
1058 }
1059 if (check_fs_open(argv[0]))
1060 return;
1061
1062 if (argc > 1) {
1063 dir = strtol(argv[1], &tmp, 0);
1064 if (*tmp) {
1065 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1066 return;
1067 }
1068 }
1069 else
1070 dir = root;
1071 if (argc > 2) {
1072 mode = strtol(argv[2], &tmp, 0);
1073 if (*tmp) {
1074 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1075 return;
1076 }
1077 } else
1078 mode = 010755;
1079
1080 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1081 if (retval)
1082 com_err("ext2fs_new_inode", retval, "");
1083 else
1084 printf("Free inode found: %ld\n", free_inode);
1085 }
1086
1087 static errcode_t copy_file(int fd, ino_t newfile)
1088 {
1089 ext2_file_t e2_file;
1090 errcode_t retval;
1091 unsigned int got, written;
1092 char buf[8192];
1093 char *ptr;
1094
1095 retval = ext2fs_file_open(current_fs, newfile,
1096 EXT2_FILE_WRITE, &e2_file);
1097 if (retval)
1098 return retval;
1099
1100 while (1) {
1101 got = read(fd, buf, sizeof(buf));
1102 if (got == 0)
1103 break;
1104 if (got < 0) {
1105 retval = errno;
1106 goto fail;
1107 }
1108 ptr = buf;
1109 while (got > 0) {
1110 retval = ext2fs_file_write(e2_file, ptr,
1111 got, &written);
1112 if (retval)
1113 goto fail;
1114
1115 got -= written;
1116 ptr += written;
1117 }
1118 }
1119 retval = ext2fs_file_close(e2_file);
1120
1121 return retval;
1122
1123 fail:
1124 (void) ext2fs_file_close(e2_file);
1125 return retval;
1126 }
1127
1128
1129 void do_write(int argc, char *argv[])
1130 {
1131 int fd;
1132 struct stat statbuf;
1133 ino_t newfile;
1134 errcode_t retval;
1135 struct ext2_inode inode;
1136 dgrp_t group;
1137
1138 if (check_fs_open(argv[0]))
1139 return;
1140 if (argc != 3) {
1141 com_err(argv[0], 0, "Usage: write <nativefile> <newfile>");
1142 return;
1143 }
1144 if (check_fs_read_write(argv[0]))
1145 return;
1146 fd = open(argv[1], O_RDONLY);
1147 if (fd < 0) {
1148 com_err(argv[1], fd, "");
1149 return;
1150 }
1151 if (fstat(fd, &statbuf) < 0) {
1152 com_err(argv[1], errno, "");
1153 close(fd);
1154 return;
1155 }
1156
1157 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1158 if (retval) {
1159 com_err(argv[0], retval, "");
1160 close(fd);
1161 return;
1162 }
1163 group = ext2fs_group_of_ino(current_fs, newfile);
1164 current_fs->group_desc[group].bg_free_inodes_count--;
1165 current_fs->super->s_free_inodes_count--;
1166 ext2fs_mark_super_dirty(current_fs);
1167 printf("Allocated inode: %ld\n", newfile);
1168 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 0);
1169 if (retval) {
1170 com_err(argv[2], retval, "");
1171 close(fd);
1172 return;
1173 }
1174 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1175 com_err(argv[0], 0, "Warning: inode already set");
1176 ext2fs_mark_inode_bitmap(current_fs->inode_map,newfile);
1177 ext2fs_mark_ib_dirty(current_fs);
1178 memset(&inode, 0, sizeof(inode));
1179 inode.i_mode = statbuf.st_mode;
1180 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1181 inode.i_links_count = 1;
1182 inode.i_size = statbuf.st_size;
1183 ext2fs_write_inode(current_fs, newfile, &inode);
1184 retval = ext2fs_write_inode(current_fs, newfile, &inode);
1185 if (retval) {
1186 com_err(argv[0], retval, "while trying to write inode %d",
1187 inode);
1188 close(fd);
1189 return;
1190 }
1191 if (LINUX_S_ISREG(inode.i_mode)) {
1192 retval = copy_file(fd, newfile);
1193 if (retval)
1194 com_err("copy_file", retval, "");
1195 }
1196 close(fd);
1197 }
1198
1199 void do_mknod(int argc, char *argv[])
1200 {
1201 unsigned long mode, major, minor, nr;
1202 ino_t newfile;
1203 errcode_t retval;
1204 struct ext2_inode inode;
1205
1206 if (check_fs_open(argv[0]))
1207 return;
1208 if (argc < 3 || argv[2][1]) {
1209 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1210 return;
1211 }
1212 mode = minor = major = 0;
1213 switch (argv[2][0]) {
1214 case 'p':
1215 mode = LINUX_S_IFIFO;
1216 nr = 3;
1217 break;
1218 case 'c':
1219 mode = LINUX_S_IFCHR;
1220 nr = 5;
1221 break;
1222 case 'b':
1223 mode = LINUX_S_IFBLK;
1224 nr = 5;
1225 break;
1226 default:
1227 nr = 0;
1228 }
1229 if (nr == 5) {
1230 major = strtoul(argv[3], argv+3, 0);
1231 minor = strtoul(argv[4], argv+4, 0);
1232 if (major > 255 || minor > 255 || argv[3][0] || argv[4][0])
1233 nr = 0;
1234 }
1235 if (argc != nr) {
1236 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1237 return;
1238 }
1239 if (check_fs_read_write(argv[0]))
1240 return;
1241 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1242 if (retval) {
1243 com_err(argv[0], retval, "");
1244 return;
1245 }
1246 printf("Allocated inode: %ld\n", newfile);
1247 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 0);
1248 if (retval) {
1249 if (retval == EXT2_ET_DIR_NO_SPACE) {
1250 retval = ext2fs_expand_dir(current_fs, cwd);
1251 if (!retval)
1252 retval = ext2fs_link(current_fs, cwd,
1253 argv[1], newfile, 0);
1254 }
1255 if (retval) {
1256 com_err(argv[1], retval, "");
1257 return;
1258 }
1259 }
1260 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1261 com_err(argv[0], 0, "Warning: inode already set");
1262 ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1263 ext2fs_mark_ib_dirty(current_fs);
1264 memset(&inode, 0, sizeof(inode));
1265 inode.i_mode = mode;
1266 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1267 inode.i_block[0] = major*256+minor;
1268 inode.i_links_count = 1;
1269 ext2fs_write_inode(current_fs, newfile, &inode);
1270 retval = ext2fs_write_inode(current_fs, newfile, &inode);
1271 if (retval) {
1272 com_err(argv[0], retval, "while trying to write inode %d", inode);
1273 return;
1274 }
1275 }
1276
1277 void do_mkdir(int argc, char *argv[])
1278 {
1279 char *cp;
1280 ino_t parent;
1281 char *name;
1282 errcode_t retval;
1283
1284 if (check_fs_open(argv[0]))
1285 return;
1286
1287 if (argc != 2) {
1288 com_err(argv[0], 0, "Usage: mkdir <file>");
1289 return;
1290 }
1291
1292 if (check_fs_read_write(argv[0]))
1293 return;
1294
1295 cp = strrchr(argv[1], '/');
1296 if (cp) {
1297 *cp = 0;
1298 parent = string_to_inode(argv[1]);
1299 if (!parent) {
1300 com_err(argv[1], ENOENT, "");
1301 return;
1302 }
1303 name = cp+1;
1304 } else {
1305 parent = cwd;
1306 name = argv[1];
1307 }
1308
1309
1310 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1311 if (retval) {
1312 com_err("ext2fs_mkdir", retval, "");
1313 return;
1314 }
1315
1316 }
1317
1318 void do_rmdir(int argc, char *argv[])
1319 {
1320 printf("Unimplemented\n");
1321 }
1322
1323
1324 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1325 int blockcnt, void *private)
1326 {
1327 printf("%d ", *blocknr);
1328 ext2fs_unmark_block_bitmap(fs->block_map,*blocknr);
1329 return 0;
1330 }
1331
1332 static void kill_file_by_inode(ino_t inode)
1333 {
1334 struct ext2_inode inode_buf;
1335
1336 ext2fs_read_inode(current_fs, inode, &inode_buf);
1337 inode_buf.i_dtime = time(NULL);
1338 ext2fs_write_inode(current_fs, inode, &inode_buf);
1339
1340 printf("Kill file by inode %ld\n", inode);
1341 ext2fs_block_iterate(current_fs, inode, 0, NULL,
1342 release_blocks_proc, NULL);
1343 printf("\n");
1344 ext2fs_unmark_inode_bitmap(current_fs->inode_map, inode);
1345
1346 ext2fs_mark_bb_dirty(current_fs);
1347 ext2fs_mark_ib_dirty(current_fs);
1348 }
1349
1350
1351 void do_kill_file(int argc, char *argv[])
1352 {
1353 ino_t inode_num;
1354
1355 if (argc != 2) {
1356 com_err(argv[0], 0, "Usage: kill_file <file>");
1357 return;
1358 }
1359 if (check_fs_open(argv[0]))
1360 return;
1361
1362 if (check_fs_read_write(argv[0]))
1363 return;
1364
1365 inode_num = string_to_inode(argv[1]);
1366 if (!inode_num) {
1367 com_err(argv[0], 0, "Cannot find file");
1368 return;
1369 }
1370 kill_file_by_inode(inode_num);
1371 }
1372
1373 void do_rm(int argc, char *argv[])
1374 {
1375 int retval;
1376 ino_t inode_num;
1377 struct ext2_inode inode;
1378
1379 if (argc != 2) {
1380 com_err(argv[0], 0, "Usage: rm <filename>");
1381 return;
1382 }
1383 if (check_fs_open(argv[0]))
1384 return;
1385
1386 if (check_fs_read_write(argv[0]))
1387 return;
1388
1389 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1390 if (retval) {
1391 com_err(argv[0], retval, "while trying to resolve filename");
1392 return;
1393 }
1394
1395 retval = ext2fs_read_inode(current_fs,inode_num,&inode);
1396 if (retval) {
1397 com_err(argv[0], retval, "while reading file's inode");
1398 return;
1399 }
1400
1401 if (LINUX_S_ISDIR(inode.i_mode)) {
1402 com_err(argv[0], 0, "file is a directory");
1403 return;
1404 }
1405
1406 --inode.i_links_count;
1407 retval = ext2fs_write_inode(current_fs,inode_num,&inode);
1408 if (retval) {
1409 com_err(argv[0], retval, "while writing inode");
1410 return;
1411 }
1412
1413 unlink_file_by_name(argv[1]);
1414 if (inode.i_links_count == 0)
1415 kill_file_by_inode(inode_num);
1416 }
1417
1418 void do_show_debugfs_params(int argc, char *argv[])
1419 {
1420 FILE *out = stdout;
1421
1422 if (current_fs)
1423 fprintf(out, "Open mode: read-%s\n",
1424 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1425 fprintf(out, "Filesystem in use: %s\n",
1426 current_fs ? current_fs->device_name : "--none--");
1427 }
1428
1429 void do_expand_dir(int argc, char *argv[])
1430 {
1431 ino_t inode;
1432 int retval;
1433
1434 if (argc != 2) {
1435 com_err(argv[0], 0, "Usage: expand_dir <file>");
1436 return;
1437 }
1438 if (check_fs_open(argv[0]))
1439 return;
1440 inode = string_to_inode(argv[1]);
1441 if (!inode)
1442 return;
1443
1444 retval = ext2fs_expand_dir(current_fs, inode);
1445 if (retval)
1446 com_err("ext2fs_expand_dir", retval, "");
1447 return;
1448 }
1449
1450 void do_features(int argc, char *argv[])
1451 {
1452 int i;
1453
1454 if (check_fs_open(argv[0]))
1455 return;
1456
1457 if ((argc != 1) && check_fs_read_write(argv[0]))
1458 return;
1459 for (i=1; i < argc; i++) {
1460 if (e2p_edit_feature(argv[i],
1461 &current_fs->super->s_feature_compat, 0))
1462 com_err(argv[0], 0, "Unknown feature: %s\n",
1463 argv[i]);
1464 else
1465 ext2fs_mark_super_dirty(current_fs);
1466 }
1467 print_features((struct ext2fs_sb *) current_fs->super, stdout);
1468 }
1469
1470 static int source_file(const char *cmd_file, int sci_idx)
1471 {
1472 FILE *f;
1473 char buf[256];
1474 char *cp;
1475 int exit_status = 0;
1476 int retval;
1477
1478 if (strcmp(cmd_file, "-") == 0)
1479 f = stdin;
1480 else {
1481 f = fopen(cmd_file, "r");
1482 if (!f) {
1483 perror(cmd_file);
1484 exit(1);
1485 }
1486 }
1487 setbuf(stdout, NULL);
1488 setbuf(stderr, NULL);
1489 while (!feof(f)) {
1490 if (fgets(buf, sizeof(buf), f) == NULL)
1491 break;
1492 cp = strchr(buf, '\n');
1493 if (cp)
1494 *cp = 0;
1495 cp = strchr(buf, '\r');
1496 if (cp)
1497 *cp = 0;
1498 printf("debugfs: %s\n", buf);
1499 retval = ss_execute_line(sci_idx, buf);
1500 if (retval) {
1501 ss_perror(sci_idx, retval, buf);
1502 exit_status++;
1503 }
1504 }
1505 return exit_status;
1506 }
1507
1508 int main(int argc, char **argv)
1509 {
1510 int retval;
1511 int sci_idx;
1512 const char *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1513 int c;
1514 int open_flags = 0;
1515 char *request = 0;
1516 int exit_status = 0;
1517 char *cmd_file = 0;
1518 blk_t superblock = 0;
1519 blk_t blocksize = 0;
1520 int catastrophic = 0;
1521 char *tmp;
1522
1523 initialize_ext2_error_table();
1524 fprintf (stderr, "debugfs %s, %s for EXT2 FS %s, %s\n",
1525 E2FSPROGS_VERSION, E2FSPROGS_DATE,
1526 EXT2FS_VERSION, EXT2FS_DATE);
1527
1528 while ((c = getopt (argc, argv, "wcR:f:b:s:V")) != EOF) {
1529 switch (c) {
1530 case 'R':
1531 request = optarg;
1532 break;
1533 case 'f':
1534 cmd_file = optarg;
1535 break;
1536 case 'w':
1537 open_flags = EXT2_FLAG_RW;
1538 break;
1539 case 'b':
1540 blocksize = strtoul(optarg, &tmp, 0);
1541 if (*tmp) {
1542 com_err(argv[0], 0,
1543 "Bad block size - %s", optarg);
1544 return 1;
1545 }
1546 break;
1547 case 's':
1548 superblock = strtoul(optarg, &tmp, 0);
1549 if (*tmp) {
1550 com_err(argv[0], 0,
1551 "Bad superblock number - %s", optarg);
1552 return 1;
1553 }
1554 break;
1555 case 'c':
1556 catastrophic = 1;
1557 break;
1558 case 'V':
1559 /* Print version number and exit */
1560 fprintf(stderr, "\tUsing %s\n",
1561 error_message(EXT2_ET_BASE));
1562 exit(0);
1563 default:
1564 com_err(argv[0], 0, usage);
1565 return 1;
1566 }
1567 }
1568 if (optind < argc)
1569 open_filesystem(argv[optind], open_flags,
1570 superblock, blocksize, catastrophic);
1571
1572 sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1573 &debug_cmds, &retval);
1574 if (retval) {
1575 ss_perror(sci_idx, retval, "creating invocation");
1576 exit(1);
1577 }
1578
1579 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1580 if (retval) {
1581 ss_perror(sci_idx, retval, "adding standard requests");
1582 exit (1);
1583 }
1584 if (request) {
1585 retval = 0;
1586 retval = ss_execute_line(sci_idx, request);
1587 if (retval) {
1588 ss_perror(sci_idx, retval, request);
1589 exit_status++;
1590 }
1591 } else if (cmd_file) {
1592 exit_status = source_file(cmd_file, sci_idx);
1593 } else {
1594 ss_listen(sci_idx);
1595 }
1596
1597 if (current_fs)
1598 close_filesystem();
1599
1600 return exit_status;
1601 }
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