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debugfs: add matching fclose
[tools/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_ERRNO_H
24 #include <errno.h>
25 #endif
26 #include <fcntl.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29
30 #include "et/com_err.h"
31 #include "ss/ss.h"
32 #include "debugfs.h"
33 #include "uuid/uuid.h"
34 #include "e2p/e2p.h"
35
36 #include <ext2fs/ext2_ext_attr.h>
37
38 #include "../version.h"
39 #include "jfs_user.h"
40
41 extern ss_request_table debug_cmds;
42 ss_request_table *extra_cmds;
43 const char *debug_prog_name;
44
45 ext2_filsys     current_fs = NULL;
46 ext2_ino_t      root, cwd;
47
48 static void open_filesystem(char *device, int open_flags, blk_t superblock,
49                             blk_t blocksize, int catastrophic,
50                             char *data_filename)
51 {
52         int     retval;
53         io_channel data_io = 0;
54
55         if (superblock != 0 && blocksize == 0) {
56                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
57                 current_fs = NULL;
58                 return;
59         }
60
61         if (data_filename) {
62                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
63                         com_err(device, 0,
64                                 "The -d option is only valid when reading an e2image file");
65                         current_fs = NULL;
66                         return;
67                 }
68                 retval = unix_io_manager->open(data_filename, 0, &data_io);
69                 if (retval) {
70                         com_err(data_filename, 0, "while opening data source");
71                         current_fs = NULL;
72                         return;
73                 }
74         }
75
76         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
77                 com_err(device, 0,
78                         "opening read-only because of catastrophic mode");
79                 open_flags &= ~EXT2_FLAG_RW;
80         }
81
82         retval = ext2fs_open(device, open_flags, superblock, blocksize,
83                              unix_io_manager, &current_fs);
84         if (retval) {
85                 com_err(device, retval, "while opening filesystem");
86                 current_fs = NULL;
87                 return;
88         }
89
90         if (catastrophic)
91                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
92         else {
93                 retval = ext2fs_read_inode_bitmap(current_fs);
94                 if (retval) {
95                         com_err(device, retval, "while reading inode bitmap");
96                         goto errout;
97                 }
98                 retval = ext2fs_read_block_bitmap(current_fs);
99                 if (retval) {
100                         com_err(device, retval, "while reading block bitmap");
101                         goto errout;
102                 }
103         }
104
105         if (data_io) {
106                 retval = ext2fs_set_data_io(current_fs, data_io);
107                 if (retval) {
108                         com_err(device, retval,
109                                 "while setting data source");
110                         goto errout;
111                 }
112         }
113
114         root = cwd = EXT2_ROOT_INO;
115         return;
116
117 errout:
118         retval = ext2fs_close(current_fs);
119         if (retval)
120                 com_err(device, retval, "while trying to close filesystem");
121         current_fs = NULL;
122 }
123
124 void do_open_filesys(int argc, char **argv)
125 {
126         int     c, err;
127         int     catastrophic = 0;
128         blk_t   superblock = 0;
129         blk_t   blocksize = 0;
130         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
131         char    *data_filename = 0;
132
133         reset_getopt();
134         while ((c = getopt (argc, argv, "iwfecb:s:d:")) != EOF) {
135                 switch (c) {
136                 case 'i':
137                         open_flags |= EXT2_FLAG_IMAGE_FILE;
138                         break;
139                 case 'w':
140                         open_flags |= EXT2_FLAG_RW;
141                         break;
142                 case 'f':
143                         open_flags |= EXT2_FLAG_FORCE;
144                         break;
145                 case 'e':
146                         open_flags |= EXT2_FLAG_EXCLUSIVE;
147                         break;
148                 case 'c':
149                         catastrophic = 1;
150                         break;
151                 case 'd':
152                         data_filename = optarg;
153                         break;
154                 case 'b':
155                         blocksize = parse_ulong(optarg, argv[0],
156                                                 "block size", &err);
157                         if (err)
158                                 return;
159                         break;
160                 case 's':
161                         superblock = parse_ulong(optarg, argv[0],
162                                                  "superblock number", &err);
163                         if (err)
164                                 return;
165                         break;
166                 default:
167                         goto print_usage;
168                 }
169         }
170         if (optind != argc-1) {
171                 goto print_usage;
172         }
173         if (check_fs_not_open(argv[0]))
174                 return;
175         open_filesystem(argv[optind], open_flags,
176                         superblock, blocksize, catastrophic,
177                         data_filename);
178         return;
179
180 print_usage:
181         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
182                 "[-c] [-w] <device>\n", argv[0]);
183 }
184
185 void do_lcd(int argc, char **argv)
186 {
187         if (argc != 2) {
188                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
189                 return;
190         }
191
192         if (chdir(argv[1]) == -1) {
193                 com_err(argv[0], errno,
194                         "while trying to change native directory to %s",
195                         argv[1]);
196                 return;
197         }
198 }
199
200 static void close_filesystem(NOARGS)
201 {
202         int     retval;
203
204         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
205                 retval = ext2fs_write_inode_bitmap(current_fs);
206                 if (retval)
207                         com_err("ext2fs_write_inode_bitmap", retval, 0);
208         }
209         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
210                 retval = ext2fs_write_block_bitmap(current_fs);
211                 if (retval)
212                         com_err("ext2fs_write_block_bitmap", retval, 0);
213         }
214         retval = ext2fs_close(current_fs);
215         if (retval)
216                 com_err("ext2fs_close", retval, 0);
217         current_fs = NULL;
218         return;
219 }
220
221 void do_close_filesys(int argc, char **argv)
222 {
223         int     c;
224
225         if (check_fs_open(argv[0]))
226                 return;
227
228         reset_getopt();
229         while ((c = getopt (argc, argv, "a")) != EOF) {
230                 switch (c) {
231                 case 'a':
232                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
233                         break;
234                 default:
235                         goto print_usage;
236                 }
237         }
238
239         if (argc > optind) {
240         print_usage:
241                 com_err(0, 0, "Usage: close_filesys [-a]");
242                 return;
243         }
244
245         close_filesystem();
246 }
247
248 void do_init_filesys(int argc, char **argv)
249 {
250         struct ext2_super_block param;
251         errcode_t       retval;
252         int             err;
253
254         if (common_args_process(argc, argv, 3, 3, "initialize",
255                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
256                 return;
257
258         memset(&param, 0, sizeof(struct ext2_super_block));
259         param.s_blocks_count = parse_ulong(argv[2], argv[0],
260                                            "blocks count", &err);
261         if (err)
262                 return;
263         retval = ext2fs_initialize(argv[1], 0, &param,
264                                    unix_io_manager, &current_fs);
265         if (retval) {
266                 com_err(argv[1], retval, "while initializing filesystem");
267                 current_fs = NULL;
268                 return;
269         }
270         root = cwd = EXT2_ROOT_INO;
271         return;
272 }
273
274 static void print_features(struct ext2_super_block * s, FILE *f)
275 {
276         int     i, j, printed=0;
277         __u32   *mask = &s->s_feature_compat, m;
278
279         fputs("Filesystem features:", f);
280         for (i=0; i <3; i++,mask++) {
281                 for (j=0,m=1; j < 32; j++, m<<=1) {
282                         if (*mask & m) {
283                                 fprintf(f, " %s", e2p_feature2string(i, m));
284                                 printed++;
285                         }
286                 }
287         }
288         if (printed == 0)
289                 fputs("(none)", f);
290         fputs("\n", f);
291 }
292
293 static void print_bg_opts(struct ext2_group_desc *gdp, int mask,
294                           const char *str, int *first, FILE *f)
295 {
296         if (gdp->bg_flags & mask) {
297                 if (*first) {
298                         fputs("           [", f);
299                         *first = 0;
300                 } else
301                         fputs(", ", f);
302                 fputs(str, f);
303         }
304 }
305
306 void do_show_super_stats(int argc, char *argv[])
307 {
308         dgrp_t  i;
309         FILE    *out;
310         struct ext2_group_desc *gdp;
311         int     c, header_only = 0;
312         int     numdirs = 0, first, gdt_csum;
313
314         reset_getopt();
315         while ((c = getopt (argc, argv, "h")) != EOF) {
316                 switch (c) {
317                 case 'h':
318                         header_only++;
319                         break;
320                 default:
321                         goto print_usage;
322                 }
323         }
324         if (optind != argc) {
325                 goto print_usage;
326         }
327         if (check_fs_open(argv[0]))
328                 return;
329         out = open_pager();
330
331         list_super2(current_fs->super, out);
332         for (i=0; i < current_fs->group_desc_count; i++)
333                 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
334         fprintf(out, "Directories:              %d\n", numdirs);
335
336         if (header_only) {
337                 close_pager(out);
338                 return;
339         }
340
341         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
342                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
343         gdp = &current_fs->group_desc[0];
344         for (i = 0; i < current_fs->group_desc_count; i++, gdp++) {
345                 fprintf(out, " Group %2d: block bitmap at %u, "
346                         "inode bitmap at %u, "
347                         "inode table at %u\n"
348                         "           %d free %s, "
349                         "%d free %s, "
350                         "%d used %s%s",
351                         i, gdp->bg_block_bitmap,
352                         gdp->bg_inode_bitmap, gdp->bg_inode_table,
353                         gdp->bg_free_blocks_count,
354                         gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
355                         gdp->bg_free_inodes_count,
356                         gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
357                         gdp->bg_used_dirs_count,
358                         gdp->bg_used_dirs_count != 1 ? "directories"
359                                 : "directory", gdt_csum ? ", " : "\n");
360                 if (gdt_csum)
361                         fprintf(out, "%d unused %s\n",
362                                 gdp->bg_itable_unused,
363                                 gdp->bg_itable_unused != 1 ? "inodes":"inode");
364                 first = 1;
365                 print_bg_opts(gdp, EXT2_BG_INODE_UNINIT, "Inode not init",
366                               &first, out);
367                 print_bg_opts(gdp, EXT2_BG_BLOCK_UNINIT, "Block not init",
368                               &first, out);
369                 if (gdt_csum) {
370                         fprintf(out, "%sChecksum 0x%04x",
371                                 first ? "           [":", ", gdp->bg_checksum);
372                         first = 0;
373                 }
374                 if (!first)
375                         fputs("]\n", out);
376         }
377         close_pager(out);
378         return;
379 print_usage:
380         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
381 }
382
383 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
384                       char **argv EXT2FS_ATTR((unused)))
385 {
386         if (check_fs_open(argv[0]))
387                 return;
388         if (check_fs_read_write(argv[0]))
389                 return;
390
391         if (argv[1] && !strcmp(argv[1], "-clean"))
392                 current_fs->super->s_state |= EXT2_VALID_FS;
393         else
394                 current_fs->super->s_state &= ~EXT2_VALID_FS;
395         ext2fs_mark_super_dirty(current_fs);
396 }
397
398 struct list_blocks_struct {
399         FILE            *f;
400         e2_blkcnt_t     total;
401         blk_t           first_block, last_block;
402         e2_blkcnt_t     first_bcnt, last_bcnt;
403         e2_blkcnt_t     first;
404 };
405
406 static void finish_range(struct list_blocks_struct *lb)
407 {
408         if (lb->first_block == 0)
409                 return;
410         if (lb->first)
411                 lb->first = 0;
412         else
413                 fprintf(lb->f, ", ");
414         if (lb->first_block == lb->last_block)
415                 fprintf(lb->f, "(%lld):%u",
416                         (long long)lb->first_bcnt, lb->first_block);
417         else
418                 fprintf(lb->f, "(%lld-%lld):%u-%u",
419                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
420                         lb->first_block, lb->last_block);
421         lb->first_block = 0;
422 }
423
424 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
425                             blk_t *blocknr, e2_blkcnt_t blockcnt,
426                             blk_t ref_block EXT2FS_ATTR((unused)),
427                             int ref_offset EXT2FS_ATTR((unused)),
428                             void *private)
429 {
430         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
431
432         lb->total++;
433         if (blockcnt >= 0) {
434                 /*
435                  * See if we can add on to the existing range (if it exists)
436                  */
437                 if (lb->first_block &&
438                     (lb->last_block+1 == *blocknr) &&
439                     (lb->last_bcnt+1 == blockcnt)) {
440                         lb->last_block = *blocknr;
441                         lb->last_bcnt = blockcnt;
442                         return 0;
443                 }
444                 /*
445                  * Start a new range.
446                  */
447                 finish_range(lb);
448                 lb->first_block = lb->last_block = *blocknr;
449                 lb->first_bcnt = lb->last_bcnt = blockcnt;
450                 return 0;
451         }
452         /*
453          * Not a normal block.  Always force a new range.
454          */
455         finish_range(lb);
456         if (lb->first)
457                 lb->first = 0;
458         else
459                 fprintf(lb->f, ", ");
460         if (blockcnt == -1)
461                 fprintf(lb->f, "(IND):%u", *blocknr);
462         else if (blockcnt == -2)
463                 fprintf(lb->f, "(DIND):%u", *blocknr);
464         else if (blockcnt == -3)
465                 fprintf(lb->f, "(TIND):%u", *blocknr);
466         return 0;
467 }
468
469 static void dump_xattr_string(FILE *out, const char *str, int len)
470 {
471         int printable = 0;
472         int i;
473
474         /* check: is string "printable enough?" */
475         for (i = 0; i < len; i++)
476                 if (isprint(str[i]))
477                         printable++;
478
479         if (printable <= len*7/8)
480                 printable = 0;
481
482         for (i = 0; i < len; i++)
483                 if (printable)
484                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
485                                 (unsigned char)str[i]);
486                 else
487                         fprintf(out, "%02x ", (unsigned char)str[i]);
488 }
489
490 static void internal_dump_inode_extra(FILE *out,
491                                       const char *prefix EXT2FS_ATTR((unused)),
492                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
493                                       struct ext2_inode_large *inode)
494 {
495         struct ext2_ext_attr_entry *entry;
496         __u32 *magic;
497         char *start, *end;
498         unsigned int storage_size;
499
500         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
501         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
502                         EXT2_GOOD_OLD_INODE_SIZE) {
503                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
504                                 inode->i_extra_isize);
505                 return;
506         }
507         storage_size = EXT2_INODE_SIZE(current_fs->super) -
508                         EXT2_GOOD_OLD_INODE_SIZE -
509                         inode->i_extra_isize;
510         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
511                         inode->i_extra_isize);
512         if (*magic == EXT2_EXT_ATTR_MAGIC) {
513                 fprintf(out, "Extended attributes stored in inode body: \n");
514                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
515                 start = (char *) magic + sizeof(__u32);
516                 entry = (struct ext2_ext_attr_entry *) start;
517                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
518                         struct ext2_ext_attr_entry *next =
519                                 EXT2_EXT_ATTR_NEXT(entry);
520                         if (entry->e_value_size > storage_size ||
521                                         (char *) next >= end) {
522                                 fprintf(out, "invalid EA entry in inode\n");
523                                 return;
524                         }
525                         fprintf(out, "  ");
526                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
527                                           entry->e_name_len);
528                         fprintf(out, " = \"");
529                         dump_xattr_string(out, start + entry->e_value_offs,
530                                                 entry->e_value_size);
531                         fprintf(out, "\" (%u)\n", entry->e_value_size);
532                         entry = next;
533                 }
534         }
535 }
536
537 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
538 {
539         struct list_blocks_struct lb;
540
541         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
542         lb.total = 0;
543         lb.first_block = 0;
544         lb.f = f;
545         lb.first = 1;
546         ext2fs_block_iterate2(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
547                              list_blocks_proc, (void *)&lb);
548         finish_range(&lb);
549         if (lb.total)
550                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
551         fprintf(f,"\n");
552 }
553
554 static int int_log10(unsigned long long arg)
555 {
556         int     l = 0;
557
558         arg = arg / 10;
559         while (arg) {
560                 l++;
561                 arg = arg / 10;
562         }
563         return l;
564 }
565
566 #define DUMP_LEAF_EXTENTS       0x01
567 #define DUMP_NODE_EXTENTS       0x02
568 #define DUMP_EXTENT_TABLE       0x04
569
570 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
571                          int flags, int logical_width, int physical_width)
572 {
573         ext2_extent_handle_t    handle;
574         struct ext2fs_extent    extent;
575         struct ext2_extent_info info;
576         int                     op = EXT2_EXTENT_ROOT;
577         unsigned int            printed = 0;
578         errcode_t               errcode;
579
580         errcode = ext2fs_extent_open(current_fs, ino, &handle);
581         if (errcode)
582                 return;
583
584         if (flags & DUMP_EXTENT_TABLE)
585                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
586                         (logical_width*2)+3, "Logical",
587                         (physical_width*2)+3, "Physical");
588         else
589                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
590
591         while (1) {
592                 errcode = ext2fs_extent_get(handle, op, &extent);
593
594                 if (errcode)
595                         break;
596
597                 op = EXT2_EXTENT_NEXT;
598
599                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
600                         continue;
601
602                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
603                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
604                                 continue;
605                 } else {
606                         if ((flags & DUMP_NODE_EXTENTS) == 0)
607                                 continue;
608                 }
609
610                 errcode = ext2fs_extent_get_info(handle, &info);
611                 if (errcode)
612                         continue;
613
614                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
615                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
616                                 continue;
617
618                         if (flags & DUMP_EXTENT_TABLE) {
619                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
620                                         "%*llu%*s %6u\n",
621                                         info.curr_level, info.max_depth,
622                                         info.curr_entry, info.num_entries,
623                                         logical_width,
624                                         extent.e_lblk,
625                                         logical_width,
626                                         extent.e_lblk + (extent.e_len - 1),
627                                         physical_width,
628                                         extent.e_pblk,
629                                         physical_width+3, "", extent.e_len);
630                                 continue;
631                         }
632
633                         fprintf(f, "%s(NODE #%d, %lld-%lld, blk %lld)",
634                                 printed ? ", " : "",
635                                 info.curr_entry,
636                                 extent.e_lblk,
637                                 extent.e_lblk + (extent.e_len - 1),
638                                 extent.e_pblk);
639                         printed = 1;
640                         continue;
641                 }
642
643                 if (flags & DUMP_EXTENT_TABLE) {
644                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
645                                 "%*llu - %*llu %6u %s\n",
646                                 info.curr_level, info.max_depth,
647                                 info.curr_entry, info.num_entries,
648                                 logical_width,
649                                 extent.e_lblk,
650                                 logical_width,
651                                 extent.e_lblk + (extent.e_len - 1),
652                                 physical_width,
653                                 extent.e_pblk,
654                                 physical_width,
655                                 extent.e_pblk + (extent.e_len - 1),
656                                 extent.e_len,
657                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
658                                         "Uninit" : "");
659                         continue;
660                 }
661
662                 if (extent.e_len == 0)
663                         continue;
664                 else if (extent.e_len == 1)
665                         fprintf(f,
666                                 "%s(%lld%s): %lld",
667                                 printed ? ", " : "",
668                                 extent.e_lblk,
669                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
670                                 " [uninit]" : "",
671                                 extent.e_pblk);
672                 else
673                         fprintf(f,
674                                 "%s(%lld-%lld%s): %lld-%lld",
675                                 printed ? ", " : "",
676                                 extent.e_lblk,
677                                 extent.e_lblk + (extent.e_len - 1),
678                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
679                                         " [uninit]" : "",
680                                 extent.e_pblk,
681                                 extent.e_pblk + (extent.e_len - 1));
682                 printed = 1;
683         }
684         if (printed)
685                 fprintf(f, "\n");
686 }
687
688 void internal_dump_inode(FILE *out, const char *prefix,
689                          ext2_ino_t inode_num, struct ext2_inode *inode,
690                          int do_dump_blocks)
691 {
692         const char *i_type;
693         char frag, fsize;
694         int os = current_fs->super->s_creator_os;
695         struct ext2_inode_large *large_inode;
696         int is_large_inode = 0;
697
698         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
699                 is_large_inode = 1;
700         large_inode = (struct ext2_inode_large *) inode;
701
702         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
703         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
704         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
705         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
706         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
707         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
708         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
709         else i_type = "bad type";
710         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
711         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
712                 prefix, inode->i_mode & 0777, inode->i_flags);
713         if (is_large_inode && large_inode->i_extra_isize >= 24) {
714                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
715                         prefix, inode->i_generation, large_inode->i_version_hi,
716                         inode->osd1.linux1.l_i_version);
717         } else {
718                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
719                         inode->i_generation, inode->osd1.linux1.l_i_version);
720         }
721         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
722                 prefix, inode_uid(*inode), inode_gid(*inode));
723         if (LINUX_S_ISREG(inode->i_mode)) {
724                 unsigned long long i_size = (inode->i_size |
725                                     ((unsigned long long)inode->i_size_high << 32));
726
727                 fprintf(out, "%llu\n", i_size);
728         } else
729                 fprintf(out, "%d\n", inode->i_size);
730         if (os == EXT2_OS_HURD)
731                 fprintf(out,
732                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
733                         prefix,
734                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
735                         inode->osd1.hurd1.h_i_translator);
736         else
737                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
738                         prefix,
739                         inode->i_file_acl | ((long long)
740                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
741                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
742         if (os == EXT2_OS_LINUX)
743                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
744                         prefix, inode->i_links_count,
745                         (((unsigned long long)
746                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
747                         inode->i_blocks);
748         else
749                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
750                         prefix, inode->i_links_count, inode->i_blocks);
751         switch (os) {
752             case EXT2_OS_HURD:
753                 frag = inode->osd2.hurd2.h_i_frag;
754                 fsize = inode->osd2.hurd2.h_i_fsize;
755                 break;
756             default:
757                 frag = fsize = 0;
758         }
759         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
760                 prefix, inode->i_faddr, frag, fsize);
761         if (is_large_inode && large_inode->i_extra_isize >= 24) {
762                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
763                         inode->i_ctime, large_inode->i_ctime_extra,
764                         time_to_string(inode->i_ctime));
765                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
766                         inode->i_atime, large_inode->i_atime_extra,
767                         time_to_string(inode->i_atime));
768                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
769                         inode->i_mtime, large_inode->i_mtime_extra,
770                         time_to_string(inode->i_mtime));
771                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
772                         large_inode->i_crtime, large_inode->i_crtime_extra,
773                         time_to_string(large_inode->i_crtime));
774         } else {
775                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
776                         time_to_string(inode->i_ctime));
777                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
778                         time_to_string(inode->i_atime));
779                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
780                         time_to_string(inode->i_mtime));
781         }
782         if (inode->i_dtime)
783           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
784                   time_to_string(inode->i_dtime));
785         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
786                 internal_dump_inode_extra(out, prefix, inode_num,
787                                           (struct ext2_inode_large *) inode);
788         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
789                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
790                         (int) inode->i_size, (char *)inode->i_block);
791         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
792                 int major, minor;
793                 const char *devnote;
794
795                 if (inode->i_block[0]) {
796                         major = (inode->i_block[0] >> 8) & 255;
797                         minor = inode->i_block[0] & 255;
798                         devnote = "";
799                 } else {
800                         major = (inode->i_block[1] & 0xfff00) >> 8;
801                         minor = ((inode->i_block[1] & 0xff) |
802                                  ((inode->i_block[1] >> 12) & 0xfff00));
803                         devnote = "(New-style) ";
804                 }
805                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
806                         devnote, major, minor, major, minor);
807         } else if (do_dump_blocks) {
808                 if (inode->i_flags & EXT4_EXTENTS_FL)
809                         dump_extents(out, prefix, inode_num,
810                                      DUMP_LEAF_EXTENTS, 0, 0);
811                 else
812                         dump_blocks(out, prefix, inode_num);
813         }
814 }
815
816 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
817 {
818         FILE    *out;
819
820         out = open_pager();
821         internal_dump_inode(out, "", inode_num, inode, 1);
822         close_pager(out);
823 }
824
825 void do_stat(int argc, char *argv[])
826 {
827         ext2_ino_t      inode;
828         struct ext2_inode * inode_buf;
829
830         if (check_fs_open(argv[0]))
831                 return;
832
833         inode_buf = (struct ext2_inode *)
834                         malloc(EXT2_INODE_SIZE(current_fs->super));
835         if (!inode_buf) {
836                 fprintf(stderr, "do_stat: can't allocate buffer\n");
837                 return;
838         }
839
840         if (common_inode_args_process(argc, argv, &inode, 0)) {
841                 free(inode_buf);
842                 return;
843         }
844
845         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
846                                         EXT2_INODE_SIZE(current_fs->super))) {
847                 free(inode_buf);
848                 return;
849         }
850
851         dump_inode(inode, inode_buf);
852         free(inode_buf);
853         return;
854 }
855
856 void do_dump_extents(int argc, char *argv[])
857 {
858         struct ext2_inode inode;
859         ext2_ino_t      ino;
860         FILE            *out;
861         int             c, flags = 0;
862         int             logical_width;
863         int             physical_width;
864
865         reset_getopt();
866         while ((c = getopt(argc, argv, "nl")) != EOF) {
867                 switch (c) {
868                 case 'n':
869                         flags |= DUMP_NODE_EXTENTS;
870                         break;
871                 case 'l':
872                         flags |= DUMP_LEAF_EXTENTS;
873                         break;
874                 }
875         }
876
877         if (argc != optind+1) {
878         print_usage:
879                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
880                 return;
881         }
882
883         if (flags == 0)
884                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
885         flags |= DUMP_EXTENT_TABLE;
886
887         if (check_fs_open(argv[0]))
888                 return;
889
890         ino = string_to_inode(argv[optind]);
891         if (ino == 0)
892                 return;
893
894         if (debugfs_read_inode(ino, &inode, argv[0]))
895                 return;
896
897         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
898                 fprintf(stderr, "%s: does not uses extent block maps\n",
899                         argv[optind]);
900                 return;
901         }
902
903         logical_width = int_log10(((inode.i_size |
904                                     (__u64) inode.i_size_high << 32) +
905                                    current_fs->blocksize - 1) /
906                                   current_fs->blocksize) + 1;
907         if (logical_width < 5)
908                 logical_width = 5;
909         physical_width = int_log10(current_fs->super->s_blocks_count) + 1;
910         if (physical_width < 5)
911                 physical_width = 5;
912
913         out = open_pager();
914         dump_extents(out, "", ino, flags, logical_width, physical_width);
915         close_pager(out);
916         return;
917 }
918
919 void do_chroot(int argc, char *argv[])
920 {
921         ext2_ino_t inode;
922         int retval;
923
924         if (common_inode_args_process(argc, argv, &inode, 0))
925                 return;
926
927         retval = ext2fs_check_directory(current_fs, inode);
928         if (retval)  {
929                 com_err(argv[1], retval, 0);
930                 return;
931         }
932         root = inode;
933 }
934
935 void do_clri(int argc, char *argv[])
936 {
937         ext2_ino_t inode;
938         struct ext2_inode inode_buf;
939
940         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
941                 return;
942
943         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
944                 return;
945         memset(&inode_buf, 0, sizeof(inode_buf));
946         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
947                 return;
948 }
949
950 void do_freei(int argc, char *argv[])
951 {
952         ext2_ino_t inode;
953
954         if (common_inode_args_process(argc, argv, &inode,
955                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
956                 return;
957
958         if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
959                 com_err(argv[0], 0, "Warning: inode already clear");
960         ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
961         ext2fs_mark_ib_dirty(current_fs);
962 }
963
964 void do_seti(int argc, char *argv[])
965 {
966         ext2_ino_t inode;
967
968         if (common_inode_args_process(argc, argv, &inode,
969                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
970                 return;
971
972         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
973                 com_err(argv[0], 0, "Warning: inode already set");
974         ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
975         ext2fs_mark_ib_dirty(current_fs);
976 }
977
978 void do_testi(int argc, char *argv[])
979 {
980         ext2_ino_t inode;
981
982         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
983                 return;
984
985         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
986                 printf("Inode %u is marked in use\n", inode);
987         else
988                 printf("Inode %u is not in use\n", inode);
989 }
990
991 void do_freeb(int argc, char *argv[])
992 {
993         blk_t block;
994         blk_t count = 1;
995
996         if (common_block_args_process(argc, argv, &block, &count))
997                 return;
998         if (check_fs_read_write(argv[0]))
999                 return;
1000         while (count-- > 0) {
1001                 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
1002                         com_err(argv[0], 0, "Warning: block %u already clear",
1003                                 block);
1004                 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
1005                 block++;
1006         }
1007         ext2fs_mark_bb_dirty(current_fs);
1008 }
1009
1010 void do_setb(int argc, char *argv[])
1011 {
1012         blk_t block;
1013         blk_t count = 1;
1014
1015         if (common_block_args_process(argc, argv, &block, &count))
1016                 return;
1017         if (check_fs_read_write(argv[0]))
1018                 return;
1019         while (count-- > 0) {
1020                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
1021                         com_err(argv[0], 0, "Warning: block %u already set",
1022                                 block);
1023                 ext2fs_mark_block_bitmap(current_fs->block_map,block);
1024                 block++;
1025         }
1026         ext2fs_mark_bb_dirty(current_fs);
1027 }
1028
1029 void do_testb(int argc, char *argv[])
1030 {
1031         blk_t block;
1032         blk_t count = 1;
1033
1034         if (common_block_args_process(argc, argv, &block, &count))
1035                 return;
1036         while (count-- > 0) {
1037                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
1038                         printf("Block %u marked in use\n", block);
1039                 else
1040                         printf("Block %u not in use\n", block);
1041                 block++;
1042         }
1043 }
1044
1045 static void modify_u8(char *com, const char *prompt,
1046                       const char *format, __u8 *val)
1047 {
1048         char buf[200];
1049         unsigned long v;
1050         char *tmp;
1051
1052         sprintf(buf, format, *val);
1053         printf("%30s    [%s] ", prompt, buf);
1054         if (!fgets(buf, sizeof(buf), stdin))
1055                 return;
1056         if (buf[strlen (buf) - 1] == '\n')
1057                 buf[strlen (buf) - 1] = '\0';
1058         if (!buf[0])
1059                 return;
1060         v = strtoul(buf, &tmp, 0);
1061         if (*tmp)
1062                 com_err(com, 0, "Bad value - %s", buf);
1063         else
1064                 *val = v;
1065 }
1066
1067 static void modify_u16(char *com, const char *prompt,
1068                        const char *format, __u16 *val)
1069 {
1070         char buf[200];
1071         unsigned long v;
1072         char *tmp;
1073
1074         sprintf(buf, format, *val);
1075         printf("%30s    [%s] ", prompt, buf);
1076         if (!fgets(buf, sizeof(buf), stdin))
1077                 return;
1078         if (buf[strlen (buf) - 1] == '\n')
1079                 buf[strlen (buf) - 1] = '\0';
1080         if (!buf[0])
1081                 return;
1082         v = strtoul(buf, &tmp, 0);
1083         if (*tmp)
1084                 com_err(com, 0, "Bad value - %s", buf);
1085         else
1086                 *val = v;
1087 }
1088
1089 static void modify_u32(char *com, const char *prompt,
1090                        const char *format, __u32 *val)
1091 {
1092         char buf[200];
1093         unsigned long v;
1094         char *tmp;
1095
1096         sprintf(buf, format, *val);
1097         printf("%30s    [%s] ", prompt, buf);
1098         if (!fgets(buf, sizeof(buf), stdin))
1099                 return;
1100         if (buf[strlen (buf) - 1] == '\n')
1101                 buf[strlen (buf) - 1] = '\0';
1102         if (!buf[0])
1103                 return;
1104         v = strtoul(buf, &tmp, 0);
1105         if (*tmp)
1106                 com_err(com, 0, "Bad value - %s", buf);
1107         else
1108                 *val = v;
1109 }
1110
1111
1112 void do_modify_inode(int argc, char *argv[])
1113 {
1114         struct ext2_inode inode;
1115         ext2_ino_t      inode_num;
1116         int             i;
1117         unsigned char   *frag, *fsize;
1118         char            buf[80];
1119         int             os;
1120         const char      *hex_format = "0x%x";
1121         const char      *octal_format = "0%o";
1122         const char      *decimal_format = "%d";
1123         const char      *unsignedlong_format = "%lu";
1124
1125         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1126                 return;
1127
1128         os = current_fs->super->s_creator_os;
1129
1130         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1131                 return;
1132
1133         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1134         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1135         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1136         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1137         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1138         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1139         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1140         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1141         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1142         if (os == EXT2_OS_LINUX)
1143                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1144                            &inode.osd2.linux2.l_i_blocks_hi);
1145         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1146         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1147         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1148 #if 0
1149         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1150 #endif
1151         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1152         if (LINUX_S_ISDIR(inode.i_mode))
1153                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1154         else
1155                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1156
1157         if (os == EXT2_OS_HURD)
1158                 modify_u32(argv[0], "Translator Block",
1159                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1160
1161         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1162         switch (os) {
1163             case EXT2_OS_HURD:
1164                 frag = &inode.osd2.hurd2.h_i_frag;
1165                 fsize = &inode.osd2.hurd2.h_i_fsize;
1166                 break;
1167             default:
1168                 frag = fsize = 0;
1169         }
1170         if (frag)
1171                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1172         if (fsize)
1173                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1174
1175         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1176                 sprintf(buf, "Direct Block #%d", i);
1177                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1178         }
1179         modify_u32(argv[0], "Indirect Block", decimal_format,
1180                     &inode.i_block[EXT2_IND_BLOCK]);
1181         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1182                     &inode.i_block[EXT2_DIND_BLOCK]);
1183         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1184                     &inode.i_block[EXT2_TIND_BLOCK]);
1185         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1186                 return;
1187 }
1188
1189 void do_change_working_dir(int argc, char *argv[])
1190 {
1191         ext2_ino_t      inode;
1192         int             retval;
1193
1194         if (common_inode_args_process(argc, argv, &inode, 0))
1195                 return;
1196
1197         retval = ext2fs_check_directory(current_fs, inode);
1198         if (retval) {
1199                 com_err(argv[1], retval, 0);
1200                 return;
1201         }
1202         cwd = inode;
1203         return;
1204 }
1205
1206 void do_print_working_directory(int argc, char *argv[])
1207 {
1208         int     retval;
1209         char    *pathname = NULL;
1210
1211         if (common_args_process(argc, argv, 1, 1,
1212                                 "print_working_directory", "", 0))
1213                 return;
1214
1215         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1216         if (retval) {
1217                 com_err(argv[0], retval,
1218                         "while trying to get pathname of cwd");
1219         }
1220         printf("[pwd]   INODE: %6u  PATH: %s\n",
1221                cwd, pathname ? pathname : "NULL");
1222         if (pathname) {
1223                 free(pathname);
1224                 pathname = NULL;
1225         }
1226         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1227         if (retval) {
1228                 com_err(argv[0], retval,
1229                         "while trying to get pathname of root");
1230         }
1231         printf("[root]  INODE: %6u  PATH: %s\n",
1232                root, pathname ? pathname : "NULL");
1233         if (pathname) {
1234                 free(pathname);
1235                 pathname = NULL;
1236         }
1237         return;
1238 }
1239
1240 /*
1241  * Given a mode, return the ext2 file type
1242  */
1243 static int ext2_file_type(unsigned int mode)
1244 {
1245         if (LINUX_S_ISREG(mode))
1246                 return EXT2_FT_REG_FILE;
1247
1248         if (LINUX_S_ISDIR(mode))
1249                 return EXT2_FT_DIR;
1250
1251         if (LINUX_S_ISCHR(mode))
1252                 return EXT2_FT_CHRDEV;
1253
1254         if (LINUX_S_ISBLK(mode))
1255                 return EXT2_FT_BLKDEV;
1256
1257         if (LINUX_S_ISLNK(mode))
1258                 return EXT2_FT_SYMLINK;
1259
1260         if (LINUX_S_ISFIFO(mode))
1261                 return EXT2_FT_FIFO;
1262
1263         if (LINUX_S_ISSOCK(mode))
1264                 return EXT2_FT_SOCK;
1265
1266         return 0;
1267 }
1268
1269 static void make_link(char *sourcename, char *destname)
1270 {
1271         ext2_ino_t      ino;
1272         struct ext2_inode inode;
1273         int             retval;
1274         ext2_ino_t      dir;
1275         char            *dest, *cp, *base_name;
1276
1277         /*
1278          * Get the source inode
1279          */
1280         ino = string_to_inode(sourcename);
1281         if (!ino)
1282                 return;
1283         base_name = strrchr(sourcename, '/');
1284         if (base_name)
1285                 base_name++;
1286         else
1287                 base_name = sourcename;
1288         /*
1289          * Figure out the destination.  First see if it exists and is
1290          * a directory.
1291          */
1292         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1293                 dest = base_name;
1294         else {
1295                 /*
1296                  * OK, it doesn't exist.  See if it is
1297                  * '<dir>/basename' or 'basename'
1298                  */
1299                 cp = strrchr(destname, '/');
1300                 if (cp) {
1301                         *cp = 0;
1302                         dir = string_to_inode(destname);
1303                         if (!dir)
1304                                 return;
1305                         dest = cp+1;
1306                 } else {
1307                         dir = cwd;
1308                         dest = destname;
1309                 }
1310         }
1311
1312         if (debugfs_read_inode(ino, &inode, sourcename))
1313                 return;
1314
1315         retval = ext2fs_link(current_fs, dir, dest, ino,
1316                              ext2_file_type(inode.i_mode));
1317         if (retval)
1318                 com_err("make_link", retval, 0);
1319         return;
1320 }
1321
1322
1323 void do_link(int argc, char *argv[])
1324 {
1325         if (common_args_process(argc, argv, 3, 3, "link",
1326                                 "<source file> <dest_name>", CHECK_FS_RW))
1327                 return;
1328
1329         make_link(argv[1], argv[2]);
1330 }
1331
1332 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1333                             int blockcnt EXT2FS_ATTR((unused)),
1334                             void *private EXT2FS_ATTR((unused)))
1335 {
1336         blk_t   block;
1337
1338         block = *blocknr;
1339         ext2fs_block_alloc_stats(fs, block, +1);
1340         return 0;
1341 }
1342
1343 void do_undel(int argc, char *argv[])
1344 {
1345         ext2_ino_t      ino;
1346         struct ext2_inode inode;
1347
1348         if (common_args_process(argc, argv, 2, 3, "undelete",
1349                                 "<inode_num> [dest_name]",
1350                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1351                 return;
1352
1353         ino = string_to_inode(argv[1]);
1354         if (!ino)
1355                 return;
1356
1357         if (debugfs_read_inode(ino, &inode, argv[1]))
1358                 return;
1359
1360         if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
1361                 com_err(argv[1], 0, "Inode is not marked as deleted");
1362                 return;
1363         }
1364
1365         /*
1366          * XXX this function doesn't handle changing the links count on the
1367          * parent directory when undeleting a directory.
1368          */
1369         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1370         inode.i_dtime = 0;
1371
1372         if (debugfs_write_inode(ino, &inode, argv[0]))
1373                 return;
1374
1375         ext2fs_block_iterate(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1376                              mark_blocks_proc, NULL);
1377
1378         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1379
1380         if (argc > 2)
1381                 make_link(argv[1], argv[2]);
1382 }
1383
1384 static void unlink_file_by_name(char *filename)
1385 {
1386         int             retval;
1387         ext2_ino_t      dir;
1388         char            *base_name;
1389
1390         base_name = strrchr(filename, '/');
1391         if (base_name) {
1392                 *base_name++ = '\0';
1393                 dir = string_to_inode(filename);
1394                 if (!dir)
1395                         return;
1396         } else {
1397                 dir = cwd;
1398                 base_name = filename;
1399         }
1400         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1401         if (retval)
1402                 com_err("unlink_file_by_name", retval, 0);
1403         return;
1404 }
1405
1406 void do_unlink(int argc, char *argv[])
1407 {
1408         if (common_args_process(argc, argv, 2, 2, "link",
1409                                 "<pathname>", CHECK_FS_RW))
1410                 return;
1411
1412         unlink_file_by_name(argv[1]);
1413 }
1414
1415 void do_find_free_block(int argc, char *argv[])
1416 {
1417         blk_t   free_blk, goal, first_free = 0;
1418         int             count;
1419         errcode_t       retval;
1420         char            *tmp;
1421
1422         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1423                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1424                 return;
1425         }
1426         if (check_fs_open(argv[0]))
1427                 return;
1428
1429         if (argc > 1) {
1430                 count = strtol(argv[1],&tmp,0);
1431                 if (*tmp) {
1432                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1433                         return;
1434                 }
1435         } else
1436                 count = 1;
1437
1438         if (argc > 2) {
1439                 goal = strtol(argv[2], &tmp, 0);
1440                 if (*tmp) {
1441                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1442                         return;
1443                 }
1444         }
1445         else
1446                 goal = current_fs->super->s_first_data_block;
1447
1448         printf("Free blocks found: ");
1449         free_blk = goal - 1;
1450         while (count-- > 0) {
1451                 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
1452                                           &free_blk);
1453                 if (first_free) {
1454                         if (first_free == free_blk)
1455                                 break;
1456                 } else
1457                         first_free = free_blk;
1458                 if (retval) {
1459                         com_err("ext2fs_new_block", retval, 0);
1460                         return;
1461                 } else
1462                         printf("%u ", free_blk);
1463         }
1464         printf("\n");
1465 }
1466
1467 void do_find_free_inode(int argc, char *argv[])
1468 {
1469         ext2_ino_t      free_inode, dir;
1470         int             mode;
1471         int             retval;
1472         char            *tmp;
1473
1474         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1475                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1476                 return;
1477         }
1478         if (check_fs_open(argv[0]))
1479                 return;
1480
1481         if (argc > 1) {
1482                 dir = strtol(argv[1], &tmp, 0);
1483                 if (*tmp) {
1484                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1485                         return;
1486                 }
1487         }
1488         else
1489                 dir = root;
1490         if (argc > 2) {
1491                 mode = strtol(argv[2], &tmp, 0);
1492                 if (*tmp) {
1493                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1494                         return;
1495                 }
1496         } else
1497                 mode = 010755;
1498
1499         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1500         if (retval)
1501                 com_err("ext2fs_new_inode", retval, 0);
1502         else
1503                 printf("Free inode found: %u\n", free_inode);
1504 }
1505
1506 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1507 {
1508         ext2_file_t     e2_file;
1509         errcode_t       retval;
1510         int             got;
1511         unsigned int    written;
1512         char            buf[8192];
1513         char            *ptr;
1514
1515         retval = ext2fs_file_open(current_fs, newfile,
1516                                   EXT2_FILE_WRITE, &e2_file);
1517         if (retval)
1518                 return retval;
1519
1520         while (1) {
1521                 got = read(fd, buf, sizeof(buf));
1522                 if (got == 0)
1523                         break;
1524                 if (got < 0) {
1525                         retval = errno;
1526                         goto fail;
1527                 }
1528                 ptr = buf;
1529                 while (got > 0) {
1530                         retval = ext2fs_file_write(e2_file, ptr,
1531                                                    got, &written);
1532                         if (retval)
1533                                 goto fail;
1534
1535                         got -= written;
1536                         ptr += written;
1537                 }
1538         }
1539         retval = ext2fs_file_close(e2_file);
1540         return retval;
1541
1542 fail:
1543         (void) ext2fs_file_close(e2_file);
1544         return retval;
1545 }
1546
1547
1548 void do_write(int argc, char *argv[])
1549 {
1550         int             fd;
1551         struct stat     statbuf;
1552         ext2_ino_t      newfile;
1553         errcode_t       retval;
1554         struct ext2_inode inode;
1555
1556         if (common_args_process(argc, argv, 3, 3, "write",
1557                                 "<native file> <new file>", CHECK_FS_RW))
1558                 return;
1559
1560         fd = open(argv[1], O_RDONLY);
1561         if (fd < 0) {
1562                 com_err(argv[1], errno, 0);
1563                 return;
1564         }
1565         if (fstat(fd, &statbuf) < 0) {
1566                 com_err(argv[1], errno, 0);
1567                 close(fd);
1568                 return;
1569         }
1570
1571         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1572         if (retval == 0) {
1573                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1574                 close(fd);
1575                 return;
1576         }
1577
1578         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1579         if (retval) {
1580                 com_err(argv[0], retval, 0);
1581                 close(fd);
1582                 return;
1583         }
1584         printf("Allocated inode: %u\n", newfile);
1585         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1586                              EXT2_FT_REG_FILE);
1587         if (retval == EXT2_ET_DIR_NO_SPACE) {
1588                 retval = ext2fs_expand_dir(current_fs, cwd);
1589                 if (retval) {
1590                         com_err(argv[0], retval, "while expanding directory");
1591                         close(fd);
1592                         return;
1593                 }
1594                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1595                                      EXT2_FT_REG_FILE);
1596         }
1597         if (retval) {
1598                 com_err(argv[2], retval, 0);
1599                 close(fd);
1600                 return;
1601         }
1602         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1603                 com_err(argv[0], 0, "Warning: inode already set");
1604         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1605         memset(&inode, 0, sizeof(inode));
1606         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1607         inode.i_atime = inode.i_ctime = inode.i_mtime =
1608                 current_fs->now ? current_fs->now : time(0);
1609         inode.i_links_count = 1;
1610         inode.i_size = statbuf.st_size;
1611         if (current_fs->super->s_feature_incompat &
1612             EXT3_FEATURE_INCOMPAT_EXTENTS)
1613                 inode.i_flags |= EXT4_EXTENTS_FL;
1614         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1615                 close(fd);
1616                 return;
1617         }
1618         if (LINUX_S_ISREG(inode.i_mode)) {
1619                 retval = copy_file(fd, newfile);
1620                 if (retval)
1621                         com_err("copy_file", retval, 0);
1622         }
1623         close(fd);
1624 }
1625
1626 void do_mknod(int argc, char *argv[])
1627 {
1628         unsigned long   mode, major, minor;
1629         ext2_ino_t      newfile;
1630         errcode_t       retval;
1631         struct ext2_inode inode;
1632         int             filetype, nr;
1633
1634         if (check_fs_open(argv[0]))
1635                 return;
1636         if (argc < 3 || argv[2][1]) {
1637         usage:
1638                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1639                 return;
1640         }
1641         mode = minor = major = 0;
1642         switch (argv[2][0]) {
1643                 case 'p':
1644                         mode = LINUX_S_IFIFO;
1645                         filetype = EXT2_FT_FIFO;
1646                         nr = 3;
1647                         break;
1648                 case 'c':
1649                         mode = LINUX_S_IFCHR;
1650                         filetype = EXT2_FT_CHRDEV;
1651                         nr = 5;
1652                         break;
1653                 case 'b':
1654                         mode = LINUX_S_IFBLK;
1655                         filetype = EXT2_FT_BLKDEV;
1656                         nr = 5;
1657                         break;
1658                 default:
1659                         filetype = 0;
1660                         nr = 0;
1661         }
1662         if (nr == 5) {
1663                 major = strtoul(argv[3], argv+3, 0);
1664                 minor = strtoul(argv[4], argv+4, 0);
1665                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1666                         nr = 0;
1667         }
1668         if (argc != nr)
1669                 goto usage;
1670         if (check_fs_read_write(argv[0]))
1671                 return;
1672         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1673         if (retval) {
1674                 com_err(argv[0], retval, 0);
1675                 return;
1676         }
1677         printf("Allocated inode: %u\n", newfile);
1678         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1679         if (retval == EXT2_ET_DIR_NO_SPACE) {
1680                 retval = ext2fs_expand_dir(current_fs, cwd);
1681                 if (retval) {
1682                         com_err(argv[0], retval, "while expanding directory");
1683                         return;
1684                 }
1685                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1686                                      filetype);
1687         }
1688         if (retval) {
1689                 com_err(argv[1], retval, 0);
1690                 return;
1691         }
1692         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1693                 com_err(argv[0], 0, "Warning: inode already set");
1694         ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1695         ext2fs_mark_ib_dirty(current_fs);
1696         memset(&inode, 0, sizeof(inode));
1697         inode.i_mode = mode;
1698         inode.i_atime = inode.i_ctime = inode.i_mtime =
1699                 current_fs->now ? current_fs->now : time(0);
1700         if ((major < 256) && (minor < 256)) {
1701                 inode.i_block[0] = major*256+minor;
1702                 inode.i_block[1] = 0;
1703         } else {
1704                 inode.i_block[0] = 0;
1705                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1706         }
1707         inode.i_links_count = 1;
1708         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1709                 return;
1710 }
1711
1712 void do_mkdir(int argc, char *argv[])
1713 {
1714         char    *cp;
1715         ext2_ino_t      parent;
1716         char    *name;
1717         errcode_t retval;
1718
1719         if (common_args_process(argc, argv, 2, 2, "mkdir",
1720                                 "<filename>", CHECK_FS_RW))
1721                 return;
1722
1723         cp = strrchr(argv[1], '/');
1724         if (cp) {
1725                 *cp = 0;
1726                 parent = string_to_inode(argv[1]);
1727                 if (!parent) {
1728                         com_err(argv[1], ENOENT, 0);
1729                         return;
1730                 }
1731                 name = cp+1;
1732         } else {
1733                 parent = cwd;
1734                 name = argv[1];
1735         }
1736
1737 try_again:
1738         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1739         if (retval == EXT2_ET_DIR_NO_SPACE) {
1740                 retval = ext2fs_expand_dir(current_fs, parent);
1741                 if (retval) {
1742                         com_err(argv[0], retval, "while expanding directory");
1743                         return;
1744                 }
1745                 goto try_again;
1746         }
1747         if (retval) {
1748                 com_err("ext2fs_mkdir", retval, 0);
1749                 return;
1750         }
1751
1752 }
1753
1754 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1755                                int blockcnt EXT2FS_ATTR((unused)),
1756                                void *private EXT2FS_ATTR((unused)))
1757 {
1758         blk_t   block;
1759
1760         block = *blocknr;
1761         ext2fs_block_alloc_stats(fs, block, -1);
1762         return 0;
1763 }
1764
1765 static void kill_file_by_inode(ext2_ino_t inode)
1766 {
1767         struct ext2_inode inode_buf;
1768
1769         if (debugfs_read_inode(inode, &inode_buf, 0))
1770                 return;
1771         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1772         if (debugfs_write_inode(inode, &inode_buf, 0))
1773                 return;
1774         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1775                 return;
1776
1777         ext2fs_block_iterate(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1778                              release_blocks_proc, NULL);
1779         printf("\n");
1780         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1781                                   LINUX_S_ISDIR(inode_buf.i_mode));
1782 }
1783
1784
1785 void do_kill_file(int argc, char *argv[])
1786 {
1787         ext2_ino_t inode_num;
1788
1789         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1790                 return;
1791
1792         kill_file_by_inode(inode_num);
1793 }
1794
1795 void do_rm(int argc, char *argv[])
1796 {
1797         int retval;
1798         ext2_ino_t inode_num;
1799         struct ext2_inode inode;
1800
1801         if (common_args_process(argc, argv, 2, 2, "rm",
1802                                 "<filename>", CHECK_FS_RW))
1803                 return;
1804
1805         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1806         if (retval) {
1807                 com_err(argv[0], retval, "while trying to resolve filename");
1808                 return;
1809         }
1810
1811         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1812                 return;
1813
1814         if (LINUX_S_ISDIR(inode.i_mode)) {
1815                 com_err(argv[0], 0, "file is a directory");
1816                 return;
1817         }
1818
1819         --inode.i_links_count;
1820         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1821                 return;
1822
1823         unlink_file_by_name(argv[1]);
1824         if (inode.i_links_count == 0)
1825                 kill_file_by_inode(inode_num);
1826 }
1827
1828 struct rd_struct {
1829         ext2_ino_t      parent;
1830         int             empty;
1831 };
1832
1833 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1834                       int       entry EXT2FS_ATTR((unused)),
1835                       struct ext2_dir_entry *dirent,
1836                       int       offset EXT2FS_ATTR((unused)),
1837                       int       blocksize EXT2FS_ATTR((unused)),
1838                       char      *buf EXT2FS_ATTR((unused)),
1839                       void      *private)
1840 {
1841         struct rd_struct *rds = (struct rd_struct *) private;
1842
1843         if (dirent->inode == 0)
1844                 return 0;
1845         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1846                 return 0;
1847         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1848             (dirent->name[1] == '.')) {
1849                 rds->parent = dirent->inode;
1850                 return 0;
1851         }
1852         rds->empty = 0;
1853         return 0;
1854 }
1855
1856 void do_rmdir(int argc, char *argv[])
1857 {
1858         int retval;
1859         ext2_ino_t inode_num;
1860         struct ext2_inode inode;
1861         struct rd_struct rds;
1862
1863         if (common_args_process(argc, argv, 2, 2, "rmdir",
1864                                 "<filename>", CHECK_FS_RW))
1865                 return;
1866
1867         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1868         if (retval) {
1869                 com_err(argv[0], retval, "while trying to resolve filename");
1870                 return;
1871         }
1872
1873         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1874                 return;
1875
1876         if (!LINUX_S_ISDIR(inode.i_mode)) {
1877                 com_err(argv[0], 0, "file is not a directory");
1878                 return;
1879         }
1880
1881         rds.parent = 0;
1882         rds.empty = 1;
1883
1884         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1885                                     0, rmdir_proc, &rds);
1886         if (retval) {
1887                 com_err(argv[0], retval, "while iterating over directory");
1888                 return;
1889         }
1890         if (rds.empty == 0) {
1891                 com_err(argv[0], 0, "directory not empty");
1892                 return;
1893         }
1894
1895         inode.i_links_count = 0;
1896         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1897                 return;
1898
1899         unlink_file_by_name(argv[1]);
1900         kill_file_by_inode(inode_num);
1901
1902         if (rds.parent) {
1903                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1904                         return;
1905                 if (inode.i_links_count > 1)
1906                         inode.i_links_count--;
1907                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1908                         return;
1909         }
1910 }
1911
1912 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1913                             char *argv[] EXT2FS_ATTR((unused)))
1914 {
1915         FILE *out = stdout;
1916
1917         if (current_fs)
1918                 fprintf(out, "Open mode: read-%s\n",
1919                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1920         fprintf(out, "Filesystem in use: %s\n",
1921                 current_fs ? current_fs->device_name : "--none--");
1922 }
1923
1924 void do_expand_dir(int argc, char *argv[])
1925 {
1926         ext2_ino_t inode;
1927         int retval;
1928
1929         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1930                 return;
1931
1932         retval = ext2fs_expand_dir(current_fs, inode);
1933         if (retval)
1934                 com_err("ext2fs_expand_dir", retval, 0);
1935         return;
1936 }
1937
1938 void do_features(int argc, char *argv[])
1939 {
1940         int     i;
1941
1942         if (check_fs_open(argv[0]))
1943                 return;
1944
1945         if ((argc != 1) && check_fs_read_write(argv[0]))
1946                 return;
1947         for (i=1; i < argc; i++) {
1948                 if (e2p_edit_feature(argv[i],
1949                                      &current_fs->super->s_feature_compat, 0))
1950                         com_err(argv[0], 0, "Unknown feature: %s\n",
1951                                 argv[i]);
1952                 else
1953                         ext2fs_mark_super_dirty(current_fs);
1954         }
1955         print_features(current_fs->super, stdout);
1956 }
1957
1958 void do_bmap(int argc, char *argv[])
1959 {
1960         ext2_ino_t      ino;
1961         blk_t           blk, pblk;
1962         int             err;
1963         errcode_t       errcode;
1964
1965         if (common_args_process(argc, argv, 3, 3, argv[0],
1966                                 "<file> logical_blk", 0))
1967                 return;
1968
1969         ino = string_to_inode(argv[1]);
1970         if (!ino)
1971                 return;
1972         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1973
1974         errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1975         if (errcode) {
1976                 com_err("argv[0]", errcode,
1977                         "while mapping logical block %u\n", blk);
1978                 return;
1979         }
1980         printf("%u\n", pblk);
1981 }
1982
1983 void do_imap(int argc, char *argv[])
1984 {
1985         ext2_ino_t      ino;
1986         unsigned long   group, block, block_nr, offset;
1987
1988         if (common_args_process(argc, argv, 2, 2, argv[0],
1989                                 "<file>", 0))
1990                 return;
1991         ino = string_to_inode(argv[1]);
1992         if (!ino)
1993                 return;
1994
1995         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1996         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1997                 EXT2_INODE_SIZE(current_fs->super);
1998         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1999         if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
2000                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2001                         group);
2002                 return;
2003         }
2004         block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table +
2005                 block;
2006         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2007
2008         printf("Inode %d is part of block group %lu\n"
2009                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2010                block_nr, offset);
2011
2012 }
2013
2014 void do_set_current_time(int argc, char *argv[])
2015 {
2016         time_t now;
2017
2018         if (common_args_process(argc, argv, 2, 2, argv[0],
2019                                 "<time>", 0))
2020                 return;
2021
2022         now = string_to_time(argv[1]);
2023         if (now == ((time_t) -1)) {
2024                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2025                         argv[1]);
2026                 return;
2027
2028         } else {
2029                 printf("Setting current time to %s\n", time_to_string(now));
2030                 current_fs->now = now;
2031         }
2032 }
2033
2034 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2035 {
2036         int compat, bit, ret;
2037         unsigned int feature_mask;
2038
2039         if (name) {
2040                 if (feature_type == E2P_FS_FEATURE)
2041                         ret = e2p_string2feature(name, &compat, &feature_mask);
2042                 else
2043                         ret = e2p_jrnl_string2feature(name, &compat,
2044                                                       &feature_mask);
2045                 if (ret)
2046                         return ret;
2047
2048                 if (!(supp[compat] & feature_mask))
2049                         return 1;
2050         } else {
2051                 for (compat = 0; compat < 3; compat++) {
2052                         for (bit = 0, feature_mask = 1; bit < 32;
2053                              bit++, feature_mask <<= 1) {
2054                                 if (supp[compat] & feature_mask) {
2055                                         if (feature_type == E2P_FS_FEATURE)
2056                                                 fprintf(stdout, " %s",
2057                                                 e2p_feature2string(compat,
2058                                                 feature_mask));
2059                                         else
2060                                                 fprintf(stdout, " %s",
2061                                                 e2p_jrnl_feature2string(compat,
2062                                                 feature_mask));
2063                                 }
2064                         }
2065                 }
2066                 fprintf(stdout, "\n");
2067         }
2068
2069         return 0;
2070 }
2071
2072 void do_supported_features(int argc, char *argv[])
2073 {
2074         int     ret;
2075         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2076                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2077                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2078         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2079                                  JFS_KNOWN_INCOMPAT_FEATURES,
2080                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2081
2082         if (argc > 1) {
2083                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2084                 if (ret) {
2085                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2086                                                 argv[1]);
2087                 }
2088                 if (ret)
2089                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2090                 else
2091                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2092         } else {
2093                 fprintf(stdout, "Supported features:");
2094                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2095                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2096         }
2097 }
2098
2099 static int source_file(const char *cmd_file, int sci_idx)
2100 {
2101         FILE            *f;
2102         char            buf[256];
2103         char            *cp;
2104         int             exit_status = 0;
2105         int             retval;
2106
2107         if (strcmp(cmd_file, "-") == 0)
2108                 f = stdin;
2109         else {
2110                 f = fopen(cmd_file, "r");
2111                 if (!f) {
2112                         perror(cmd_file);
2113                         exit(1);
2114                 }
2115         }
2116         fflush(stdout);
2117         fflush(stderr);
2118         setbuf(stdout, NULL);
2119         setbuf(stderr, NULL);
2120         while (!feof(f)) {
2121                 if (fgets(buf, sizeof(buf), f) == NULL)
2122                         break;
2123                 cp = strchr(buf, '\n');
2124                 if (cp)
2125                         *cp = 0;
2126                 cp = strchr(buf, '\r');
2127                 if (cp)
2128                         *cp = 0;
2129                 printf("debugfs: %s\n", buf);
2130                 retval = ss_execute_line(sci_idx, buf);
2131                 if (retval) {
2132                         ss_perror(sci_idx, retval, buf);
2133                         exit_status++;
2134                 }
2135         }
2136         if (f != stdin)
2137                 fclose(f);
2138         return exit_status;
2139 }
2140
2141 int main(int argc, char **argv)
2142 {
2143         int             retval;
2144         int             sci_idx;
2145         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2146         int             c;
2147         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
2148         char            *request = 0;
2149         int             exit_status = 0;
2150         char            *cmd_file = 0;
2151         blk_t           superblock = 0;
2152         blk_t           blocksize = 0;
2153         int             catastrophic = 0;
2154         char            *data_filename = 0;
2155
2156         if (debug_prog_name == 0)
2157                 debug_prog_name = "debugfs";
2158
2159         add_error_table(&et_ext2_error_table);
2160         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2161                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2162
2163         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
2164                 switch (c) {
2165                 case 'R':
2166                         request = optarg;
2167                         break;
2168                 case 'f':
2169                         cmd_file = optarg;
2170                         break;
2171                 case 'd':
2172                         data_filename = optarg;
2173                         break;
2174                 case 'i':
2175                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2176                         break;
2177                 case 'w':
2178                         open_flags |= EXT2_FLAG_RW;
2179                         break;
2180                 case 'b':
2181                         blocksize = parse_ulong(optarg, argv[0],
2182                                                 "block size", 0);
2183                         break;
2184                 case 's':
2185                         superblock = parse_ulong(optarg, argv[0],
2186                                                  "superblock number", 0);
2187                         break;
2188                 case 'c':
2189                         catastrophic = 1;
2190                         break;
2191                 case 'V':
2192                         /* Print version number and exit */
2193                         fprintf(stderr, "\tUsing %s\n",
2194                                 error_message(EXT2_ET_BASE));
2195                         exit(0);
2196                 default:
2197                         com_err(argv[0], 0, usage, debug_prog_name);
2198                         return 1;
2199                 }
2200         }
2201         if (optind < argc)
2202                 open_filesystem(argv[optind], open_flags,
2203                                 superblock, blocksize, catastrophic,
2204                                 data_filename);
2205
2206         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2207                                        &debug_cmds, &retval);
2208         if (retval) {
2209                 ss_perror(sci_idx, retval, "creating invocation");
2210                 exit(1);
2211         }
2212         ss_get_readline(sci_idx);
2213
2214         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2215         if (retval) {
2216                 ss_perror(sci_idx, retval, "adding standard requests");
2217                 exit (1);
2218         }
2219         if (extra_cmds)
2220                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2221         if (retval) {
2222                 ss_perror(sci_idx, retval, "adding extra requests");
2223                 exit (1);
2224         }
2225         if (request) {
2226                 retval = 0;
2227                 retval = ss_execute_line(sci_idx, request);
2228                 if (retval) {
2229                         ss_perror(sci_idx, retval, request);
2230                         exit_status++;
2231                 }
2232         } else if (cmd_file) {
2233                 exit_status = source_file(cmd_file, sci_idx);
2234         } else {
2235                 ss_listen(sci_idx);
2236         }
2237
2238         ss_delete_invocation(sci_idx);
2239
2240         if (current_fs)
2241                 close_filesystem();
2242
2243         remove_error_table(&et_ext2_error_table);
2244         return exit_status;
2245 }