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libext2fs: Convert ext2fs_bg_flag_test() to ext2fs_bg_flags_test()
[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, blk64_t superblock,
49                             blk64_t blocksize, int catastrophic,
50                             char *data_filename)
51 {
52         int     retval;
53         io_channel data_io = 0;
54
55         if (superblock != 0 && blocksize == 0) {
56                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
57                 current_fs = NULL;
58                 return;
59         }
60
61         if (data_filename) {
62                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
63                         com_err(device, 0,
64                                 "The -d option is only valid when reading an e2image file");
65                         current_fs = NULL;
66                         return;
67                 }
68                 retval = unix_io_manager->open(data_filename, 0, &data_io);
69                 if (retval) {
70                         com_err(data_filename, 0, "while opening data source");
71                         current_fs = NULL;
72                         return;
73                 }
74         }
75
76         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
77                 com_err(device, 0,
78                         "opening read-only because of catastrophic mode");
79                 open_flags &= ~EXT2_FLAG_RW;
80         }
81
82         retval = ext2fs_open(device, open_flags, superblock, blocksize,
83                              unix_io_manager, &current_fs);
84         if (retval) {
85                 com_err(device, retval, "while opening filesystem");
86                 current_fs = NULL;
87                 return;
88         }
89
90         if (catastrophic)
91                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
92         else {
93                 retval = ext2fs_read_inode_bitmap(current_fs);
94                 if (retval) {
95                         com_err(device, retval, "while reading inode bitmap");
96                         goto errout;
97                 }
98                 retval = ext2fs_read_block_bitmap(current_fs);
99                 if (retval) {
100                         com_err(device, retval, "while reading block bitmap");
101                         goto errout;
102                 }
103         }
104
105         if (data_io) {
106                 retval = ext2fs_set_data_io(current_fs, data_io);
107                 if (retval) {
108                         com_err(device, retval,
109                                 "while setting data source");
110                         goto errout;
111                 }
112         }
113
114         root = cwd = EXT2_ROOT_INO;
115         return;
116
117 errout:
118         retval = ext2fs_close(current_fs);
119         if (retval)
120                 com_err(device, retval, "while trying to close filesystem");
121         current_fs = NULL;
122 }
123
124 void do_open_filesys(int argc, char **argv)
125 {
126         int     c, err;
127         int     catastrophic = 0;
128         blk64_t superblock = 0;
129         blk64_t blocksize = 0;
130         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 
131         char    *data_filename = 0;
132
133         reset_getopt();
134         while ((c = getopt (argc, argv, "iwfecb:s:d:")) != 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         ext2fs_blocks_count_set(&param, 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(ext2_filsys fs, dgrp_t group, int mask,
294                           const char *str, int *first, FILE *f)
295 {
296         if (ext2fs_bg_flags_test(fs, group, 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         int     c, header_only = 0;
311         int     numdirs = 0, first, gdt_csum;
312
313         reset_getopt();
314         while ((c = getopt (argc, argv, "h")) != EOF) {
315                 switch (c) {
316                 case 'h':
317                         header_only++;
318                         break;
319                 default:
320                         goto print_usage;
321                 }
322         }
323         if (optind != argc) {
324                 goto print_usage;
325         }
326         if (check_fs_open(argv[0]))
327                 return;
328         out = open_pager();
329
330         list_super2(current_fs->super, out);
331         for (i=0; i < current_fs->group_desc_count; i++)
332                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
333         fprintf(out, "Directories:              %d\n", numdirs);
334
335         if (header_only) {
336                 close_pager(out);
337                 return;
338         }
339
340         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
341                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
342         for (i = 0; i < current_fs->group_desc_count; i++) {
343                 fprintf(out, " Group %2d: block bitmap at %llu, "
344                         "inode bitmap at %llu, "
345                         "inode table at %llu\n"
346                         "           %u free %s, "
347                         "%u free %s, "
348                         "%u used %s%s",
349                         i, ext2fs_block_bitmap_loc(current_fs, i),
350                         ext2fs_inode_bitmap_loc(current_fs, i),
351                         ext2fs_inode_table_loc(current_fs, i),
352                         ext2fs_bg_free_blocks_count(current_fs, i),
353                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
354                         "blocks" : "block",
355                         ext2fs_bg_free_inodes_count(current_fs, i),
356                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
357                         "inodes" : "inode",
358                         ext2fs_bg_used_dirs_count(current_fs, i),
359                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
360                                 : "directory", gdt_csum ? ", " : "\n");
361                 if (gdt_csum)
362                         fprintf(out, "%u unused %s\n",
363                                 ext2fs_bg_itable_unused(current_fs, i),
364                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
365                                 "inodes" : "inode");
366                 first = 1;
367                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
368                               &first, out);
369                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
370                               &first, out);
371                 if (gdt_csum) {
372                         fprintf(out, "%sChecksum 0x%04x",
373                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
374                         first = 0;
375                 }
376                 if (!first)
377                         fputs("]\n", out);
378         }
379         close_pager(out);
380         return;
381 print_usage:
382         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
383 }
384
385 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
386                       char **argv EXT2FS_ATTR((unused)))
387 {
388         if (check_fs_open(argv[0]))
389                 return;
390         if (check_fs_read_write(argv[0]))
391                 return;
392
393         if (argv[1] && !strcmp(argv[1], "-clean"))
394                 current_fs->super->s_state |= EXT2_VALID_FS;
395         else
396                 current_fs->super->s_state &= ~EXT2_VALID_FS;
397         ext2fs_mark_super_dirty(current_fs);
398 }
399
400 struct list_blocks_struct {
401         FILE            *f;
402         e2_blkcnt_t     total;
403         blk64_t         first_block, last_block;
404         e2_blkcnt_t     first_bcnt, last_bcnt;
405         e2_blkcnt_t     first;
406 };
407
408 static void finish_range(struct list_blocks_struct *lb)
409 {
410         if (lb->first_block == 0)
411                 return;
412         if (lb->first)
413                 lb->first = 0;
414         else
415                 fprintf(lb->f, ", ");
416         if (lb->first_block == lb->last_block)
417                 fprintf(lb->f, "(%lld):%llu",
418                         (long long)lb->first_bcnt, lb->first_block);
419         else
420                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
421                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
422                         lb->first_block, lb->last_block);
423         lb->first_block = 0;
424 }
425
426 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
427                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
428                             blk64_t ref_block EXT2FS_ATTR((unused)),
429                             int ref_offset EXT2FS_ATTR((unused)),
430                             void *private)
431 {
432         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
433
434         lb->total++;
435         if (blockcnt >= 0) {
436                 /*
437                  * See if we can add on to the existing range (if it exists)
438                  */
439                 if (lb->first_block &&
440                     (lb->last_block+1 == *blocknr) &&
441                     (lb->last_bcnt+1 == blockcnt)) {
442                         lb->last_block = *blocknr;
443                         lb->last_bcnt = blockcnt;
444                         return 0;
445                 }
446                 /*
447                  * Start a new range.
448                  */
449                 finish_range(lb);
450                 lb->first_block = lb->last_block = *blocknr;
451                 lb->first_bcnt = lb->last_bcnt = blockcnt;
452                 return 0;
453         }
454         /*
455          * Not a normal block.  Always force a new range.
456          */
457         finish_range(lb);
458         if (lb->first)
459                 lb->first = 0;
460         else
461                 fprintf(lb->f, ", ");
462         if (blockcnt == -1)
463                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
464         else if (blockcnt == -2)
465                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
466         else if (blockcnt == -3)
467                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
468         return 0;
469 }
470
471 static void dump_xattr_string(FILE *out, const char *str, int len)
472 {
473         int printable = 0;
474         int i;
475
476         /* check: is string "printable enough?" */
477         for (i = 0; i < len; i++)
478                 if (isprint(str[i]))
479                         printable++;
480
481         if (printable <= len*7/8)
482                 printable = 0;
483
484         for (i = 0; i < len; i++)
485                 if (printable)
486                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
487                                 (unsigned char)str[i]);
488                 else
489                         fprintf(out, "%02x ", (unsigned char)str[i]);
490 }
491
492 static void internal_dump_inode_extra(FILE *out,
493                                       const char *prefix EXT2FS_ATTR((unused)),
494                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
495                                       struct ext2_inode_large *inode)
496 {
497         struct ext2_ext_attr_entry *entry;
498         __u32 *magic;
499         char *start, *end;
500         unsigned int storage_size;
501
502         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
503         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
504                         EXT2_GOOD_OLD_INODE_SIZE) {
505                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
506                                 inode->i_extra_isize);
507                 return;
508         }
509         storage_size = EXT2_INODE_SIZE(current_fs->super) -
510                         EXT2_GOOD_OLD_INODE_SIZE -
511                         inode->i_extra_isize;
512         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
513                         inode->i_extra_isize);
514         if (*magic == EXT2_EXT_ATTR_MAGIC) {
515                 fprintf(out, "Extended attributes stored in inode body: \n");
516                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
517                 start = (char *) magic + sizeof(__u32);
518                 entry = (struct ext2_ext_attr_entry *) start;
519                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
520                         struct ext2_ext_attr_entry *next =
521                                 EXT2_EXT_ATTR_NEXT(entry);
522                         if (entry->e_value_size > storage_size ||
523                                         (char *) next >= end) {
524                                 fprintf(out, "invalid EA entry in inode\n");
525                                 return;
526                         }
527                         fprintf(out, "  ");
528                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
529                                           entry->e_name_len);
530                         fprintf(out, " = \"");
531                         dump_xattr_string(out, start + entry->e_value_offs,
532                                                 entry->e_value_size);
533                         fprintf(out, "\" (%u)\n", entry->e_value_size);
534                         entry = next;
535                 }
536         }
537 }
538
539 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
540 {
541         struct list_blocks_struct lb;
542
543         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
544         lb.total = 0;
545         lb.first_block = 0;
546         lb.f = f;
547         lb.first = 1;
548         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
549                               list_blocks_proc, (void *)&lb);
550         finish_range(&lb);
551         if (lb.total)
552                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
553         fprintf(f,"\n");
554 }
555
556 static int int_log10(unsigned long long arg)
557 {
558         int     l = 0;
559
560         arg = arg / 10;
561         while (arg) {
562                 l++;
563                 arg = arg / 10;
564         }
565         return l;
566 }
567
568 #define DUMP_LEAF_EXTENTS       0x01
569 #define DUMP_NODE_EXTENTS       0x02
570 #define DUMP_EXTENT_TABLE       0x04
571
572 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
573                          int flags, int logical_width, int physical_width)
574 {
575         ext2_extent_handle_t    handle;
576         struct ext2fs_extent    extent;
577         struct ext2_extent_info info;
578         int                     op = EXT2_EXTENT_ROOT;
579         unsigned int            printed = 0;
580         errcode_t               errcode;
581
582         errcode = ext2fs_extent_open(current_fs, ino, &handle);
583         if (errcode)
584                 return;
585
586         if (flags & DUMP_EXTENT_TABLE)
587                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
588                         (logical_width*2)+3, "Logical",
589                         (physical_width*2)+3, "Physical");
590         else
591                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
592
593         while (1) {
594                 errcode = ext2fs_extent_get(handle, op, &extent);
595
596                 if (errcode)
597                         break;
598
599                 op = EXT2_EXTENT_NEXT;
600
601                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
602                         continue;
603
604                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
605                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
606                                 continue;
607                 } else {
608                         if ((flags & DUMP_NODE_EXTENTS) == 0)
609                                 continue;
610                 }
611
612                 errcode = ext2fs_extent_get_info(handle, &info);
613                 if (errcode)
614                         continue;
615
616                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
617                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
618                                 continue;
619
620                         if (flags & DUMP_EXTENT_TABLE) {
621                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
622                                         "%*llu%*s %6u\n",
623                                         info.curr_level, info.max_depth,
624                                         info.curr_entry, info.num_entries,
625                                         logical_width,
626                                         extent.e_lblk,
627                                         logical_width,
628                                         extent.e_lblk + (extent.e_len - 1),
629                                         physical_width,
630                                         extent.e_pblk,
631                                         physical_width+3, "", extent.e_len);
632                                 continue;
633                         }
634
635                         fprintf(f, "%s(NODE #%d, %lld-%lld, blk %lld)",
636                                 printed ? ", " : "",
637                                 info.curr_entry,
638                                 extent.e_lblk,
639                                 extent.e_lblk + (extent.e_len - 1),
640                                 extent.e_pblk);
641                         printed = 1;
642                         continue;
643                 }
644
645                 if (flags & DUMP_EXTENT_TABLE) {
646                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
647                                 "%*llu - %*llu %6u %s\n",
648                                 info.curr_level, info.max_depth,
649                                 info.curr_entry, info.num_entries,
650                                 logical_width,
651                                 extent.e_lblk,
652                                 logical_width,
653                                 extent.e_lblk + (extent.e_len - 1),
654                                 physical_width,
655                                 extent.e_pblk,
656                                 physical_width,
657                                 extent.e_pblk + (extent.e_len - 1),
658                                 extent.e_len,
659                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
660                                         "Uninit" : "");
661                         continue;
662                 }
663
664                 if (extent.e_len == 0)
665                         continue;
666                 else if (extent.e_len == 1)
667                         fprintf(f,
668                                 "%s(%lld%s): %lld",
669                                 printed ? ", " : "",
670                                 extent.e_lblk,
671                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
672                                 " [uninit]" : "",
673                                 extent.e_pblk);
674                 else
675                         fprintf(f,
676                                 "%s(%lld-%lld%s): %lld-%lld",
677                                 printed ? ", " : "",
678                                 extent.e_lblk,
679                                 extent.e_lblk + (extent.e_len - 1),
680                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
681                                         " [uninit]" : "",
682                                 extent.e_pblk,
683                                 extent.e_pblk + (extent.e_len - 1));
684                 printed = 1;
685         }
686         if (printed)
687                 fprintf(f, "\n");
688 }
689
690 void internal_dump_inode(FILE *out, const char *prefix,
691                          ext2_ino_t inode_num, struct ext2_inode *inode,
692                          int do_dump_blocks)
693 {
694         const char *i_type;
695         char frag, fsize;
696         int os = current_fs->super->s_creator_os;
697         struct ext2_inode_large *large_inode;
698         int is_large_inode = 0;
699
700         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
701                 is_large_inode = 1;
702         large_inode = (struct ext2_inode_large *) inode;
703
704         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
705         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
706         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
707         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
708         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
709         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
710         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
711         else i_type = "bad type";
712         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
713         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
714                 prefix, inode->i_mode & 0777, inode->i_flags);
715         if (is_large_inode && large_inode->i_extra_isize >= 24) {
716                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
717                         prefix, inode->i_generation, large_inode->i_version_hi,
718                         inode->osd1.linux1.l_i_version);
719         } else {
720                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
721                         inode->i_generation, inode->osd1.linux1.l_i_version);
722         }
723         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
724                 prefix, inode_uid(*inode), inode_gid(*inode));
725         if (LINUX_S_ISREG(inode->i_mode)) {
726                 unsigned long long i_size = (inode->i_size |
727                                     ((unsigned long long)inode->i_size_high << 32));
728
729                 fprintf(out, "%llu\n", i_size);
730         } else
731                 fprintf(out, "%d\n", inode->i_size);
732         if (os == EXT2_OS_HURD)
733                 fprintf(out,
734                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
735                         prefix,
736                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
737                         inode->osd1.hurd1.h_i_translator);
738         else
739                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
740                         prefix,
741                         inode->i_file_acl | ((long long)
742                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
743                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
744         if (os == EXT2_OS_LINUX)
745                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
746                         prefix, inode->i_links_count,
747                         (((unsigned long long)
748                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
749                         inode->i_blocks);
750         else
751                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
752                         prefix, inode->i_links_count, inode->i_blocks);
753         switch (os) {
754             case EXT2_OS_HURD:
755                 frag = inode->osd2.hurd2.h_i_frag;
756                 fsize = inode->osd2.hurd2.h_i_fsize;
757                 break;
758             default:
759                 frag = fsize = 0;
760         }
761         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
762                 prefix, inode->i_faddr, frag, fsize);
763         if (is_large_inode && large_inode->i_extra_isize >= 24) {
764                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
765                         inode->i_ctime, large_inode->i_ctime_extra,
766                         time_to_string(inode->i_ctime));
767                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
768                         inode->i_atime, large_inode->i_atime_extra,
769                         time_to_string(inode->i_atime));
770                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
771                         inode->i_mtime, large_inode->i_mtime_extra,
772                         time_to_string(inode->i_mtime));
773                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
774                         large_inode->i_crtime, large_inode->i_crtime_extra,
775                         time_to_string(large_inode->i_crtime));
776         } else {
777                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
778                         time_to_string(inode->i_ctime));
779                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
780                         time_to_string(inode->i_atime));
781                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
782                         time_to_string(inode->i_mtime));
783         }
784         if (inode->i_dtime)
785           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
786                   time_to_string(inode->i_dtime));
787         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
788                 internal_dump_inode_extra(out, prefix, inode_num,
789                                           (struct ext2_inode_large *) inode);
790         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
791                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
792                         (int) inode->i_size, (char *)inode->i_block);
793         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
794                 int major, minor;
795                 const char *devnote;
796
797                 if (inode->i_block[0]) {
798                         major = (inode->i_block[0] >> 8) & 255;
799                         minor = inode->i_block[0] & 255;
800                         devnote = "";
801                 } else {
802                         major = (inode->i_block[1] & 0xfff00) >> 8;
803                         minor = ((inode->i_block[1] & 0xff) |
804                                  ((inode->i_block[1] >> 12) & 0xfff00));
805                         devnote = "(New-style) ";
806                 }
807                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
808                         devnote, major, minor, major, minor);
809         } else if (do_dump_blocks) {
810                 if (inode->i_flags & EXT4_EXTENTS_FL)
811                         dump_extents(out, prefix, inode_num,
812                                      DUMP_LEAF_EXTENTS, 0, 0);
813                 else
814                         dump_blocks(out, prefix, inode_num);
815         }
816 }
817
818 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
819 {
820         FILE    *out;
821
822         out = open_pager();
823         internal_dump_inode(out, "", inode_num, inode, 1);
824         close_pager(out);
825 }
826
827 void do_stat(int argc, char *argv[])
828 {
829         ext2_ino_t      inode;
830         struct ext2_inode * inode_buf;
831
832         if (check_fs_open(argv[0]))
833                 return;
834
835         inode_buf = (struct ext2_inode *)
836                         malloc(EXT2_INODE_SIZE(current_fs->super));
837         if (!inode_buf) {
838                 fprintf(stderr, "do_stat: can't allocate buffer\n");
839                 return;
840         }
841
842         if (common_inode_args_process(argc, argv, &inode, 0)) {
843                 free(inode_buf);
844                 return;
845         }
846
847         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
848                                         EXT2_INODE_SIZE(current_fs->super))) {
849                 free(inode_buf);
850                 return;
851         }
852
853         dump_inode(inode, inode_buf);
854         free(inode_buf);
855         return;
856 }
857
858 void do_dump_extents(int argc, char *argv[])
859 {
860         struct ext2_inode inode;
861         ext2_ino_t      ino;
862         FILE            *out;
863         int             c, flags = 0;
864         int             logical_width;
865         int             physical_width;
866
867         reset_getopt();
868         while ((c = getopt(argc, argv, "nl")) != EOF) {
869                 switch (c) {
870                 case 'n':
871                         flags |= DUMP_NODE_EXTENTS;
872                         break;
873                 case 'l':
874                         flags |= DUMP_LEAF_EXTENTS;
875                         break;
876                 }
877         }
878
879         if (argc != optind+1) {
880         print_usage:
881                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
882                 return;
883         }
884
885         if (flags == 0)
886                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
887         flags |= DUMP_EXTENT_TABLE;
888
889         if (check_fs_open(argv[0]))
890                 return;
891
892         ino = string_to_inode(argv[optind]);
893         if (ino == 0)
894                 return;
895
896         if (debugfs_read_inode(ino, &inode, argv[0]))
897                 return;
898
899         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
900                 fprintf(stderr, "%s: does not uses extent block maps\n",
901                         argv[optind]);
902                 return;
903         }
904
905         logical_width = int_log10(((inode.i_size |
906                                     (__u64) inode.i_size_high << 32) +
907                                    current_fs->blocksize - 1) /
908                                   current_fs->blocksize) + 1;
909         if (logical_width < 5)
910                 logical_width = 5;
911         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
912         if (physical_width < 5)
913                 physical_width = 5;
914
915         out = open_pager();
916         dump_extents(out, "", ino, flags, logical_width, physical_width);
917         close_pager(out);
918         return;
919 }
920
921 void do_chroot(int argc, char *argv[])
922 {
923         ext2_ino_t inode;
924         int retval;
925
926         if (common_inode_args_process(argc, argv, &inode, 0))
927                 return;
928
929         retval = ext2fs_check_directory(current_fs, inode);
930         if (retval)  {
931                 com_err(argv[1], retval, 0);
932                 return;
933         }
934         root = inode;
935 }
936
937 void do_clri(int argc, char *argv[])
938 {
939         ext2_ino_t inode;
940         struct ext2_inode inode_buf;
941
942         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
943                 return;
944
945         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
946                 return;
947         memset(&inode_buf, 0, sizeof(inode_buf));
948         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
949                 return;
950 }
951
952 void do_freei(int argc, char *argv[])
953 {
954         ext2_ino_t inode;
955
956         if (common_inode_args_process(argc, argv, &inode,
957                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
958                 return;
959
960         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
961                 com_err(argv[0], 0, "Warning: inode already clear");
962         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
963         ext2fs_mark_ib_dirty(current_fs);
964 }
965
966 void do_seti(int argc, char *argv[])
967 {
968         ext2_ino_t inode;
969
970         if (common_inode_args_process(argc, argv, &inode,
971                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
972                 return;
973
974         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
975                 com_err(argv[0], 0, "Warning: inode already set");
976         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
977         ext2fs_mark_ib_dirty(current_fs);
978 }
979
980 void do_testi(int argc, char *argv[])
981 {
982         ext2_ino_t inode;
983
984         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
985                 return;
986
987         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
988                 printf("Inode %u is marked in use\n", inode);
989         else
990                 printf("Inode %u is not in use\n", inode);
991 }
992
993 void do_freeb(int argc, char *argv[])
994 {
995         blk64_t block;
996         blk64_t count = 1;
997
998         if (common_block_args_process(argc, argv, &block, &count))
999                 return;
1000         if (check_fs_read_write(argv[0]))
1001                 return;
1002         while (count-- > 0) {
1003                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1004                         com_err(argv[0], 0, "Warning: block %llu already clear",
1005                                 block);
1006                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1007                 block++;
1008         }
1009         ext2fs_mark_bb_dirty(current_fs);
1010 }
1011
1012 void do_setb(int argc, char *argv[])
1013 {
1014         blk64_t block;
1015         blk64_t count = 1;
1016
1017         if (common_block_args_process(argc, argv, &block, &count))
1018                 return;
1019         if (check_fs_read_write(argv[0]))
1020                 return;
1021         while (count-- > 0) {
1022                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1023                         com_err(argv[0], 0, "Warning: block %llu already set",
1024                                 block);
1025                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1026                 block++;
1027         }
1028         ext2fs_mark_bb_dirty(current_fs);
1029 }
1030
1031 void do_testb(int argc, char *argv[])
1032 {
1033         blk64_t block;
1034         blk64_t count = 1;
1035
1036         if (common_block_args_process(argc, argv, &block, &count))
1037                 return;
1038         while (count-- > 0) {
1039                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1040                         printf("Block %llu marked in use\n", block);
1041                 else
1042                         printf("Block %llu not in use\n", block);
1043                 block++;
1044         }
1045 }
1046
1047 static void modify_u8(char *com, const char *prompt,
1048                       const char *format, __u8 *val)
1049 {
1050         char buf[200];
1051         unsigned long v;
1052         char *tmp;
1053
1054         sprintf(buf, format, *val);
1055         printf("%30s    [%s] ", prompt, buf);
1056         if (!fgets(buf, sizeof(buf), stdin))
1057                 return;
1058         if (buf[strlen (buf) - 1] == '\n')
1059                 buf[strlen (buf) - 1] = '\0';
1060         if (!buf[0])
1061                 return;
1062         v = strtoul(buf, &tmp, 0);
1063         if (*tmp)
1064                 com_err(com, 0, "Bad value - %s", buf);
1065         else
1066                 *val = v;
1067 }
1068
1069 static void modify_u16(char *com, const char *prompt,
1070                        const char *format, __u16 *val)
1071 {
1072         char buf[200];
1073         unsigned long v;
1074         char *tmp;
1075
1076         sprintf(buf, format, *val);
1077         printf("%30s    [%s] ", prompt, buf);
1078         if (!fgets(buf, sizeof(buf), stdin))
1079                 return;
1080         if (buf[strlen (buf) - 1] == '\n')
1081                 buf[strlen (buf) - 1] = '\0';
1082         if (!buf[0])
1083                 return;
1084         v = strtoul(buf, &tmp, 0);
1085         if (*tmp)
1086                 com_err(com, 0, "Bad value - %s", buf);
1087         else
1088                 *val = v;
1089 }
1090
1091 static void modify_u32(char *com, const char *prompt,
1092                        const char *format, __u32 *val)
1093 {
1094         char buf[200];
1095         unsigned long v;
1096         char *tmp;
1097
1098         sprintf(buf, format, *val);
1099         printf("%30s    [%s] ", prompt, buf);
1100         if (!fgets(buf, sizeof(buf), stdin))
1101                 return;
1102         if (buf[strlen (buf) - 1] == '\n')
1103                 buf[strlen (buf) - 1] = '\0';
1104         if (!buf[0])
1105                 return;
1106         v = strtoul(buf, &tmp, 0);
1107         if (*tmp)
1108                 com_err(com, 0, "Bad value - %s", buf);
1109         else
1110                 *val = v;
1111 }
1112
1113
1114 void do_modify_inode(int argc, char *argv[])
1115 {
1116         struct ext2_inode inode;
1117         ext2_ino_t      inode_num;
1118         int             i;
1119         unsigned char   *frag, *fsize;
1120         char            buf[80];
1121         int             os;
1122         const char      *hex_format = "0x%x";
1123         const char      *octal_format = "0%o";
1124         const char      *decimal_format = "%d";
1125         const char      *unsignedlong_format = "%lu";
1126
1127         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1128                 return;
1129
1130         os = current_fs->super->s_creator_os;
1131
1132         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1133                 return;
1134
1135         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1136         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1137         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1138         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1139         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1140         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1141         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1142         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1143         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1144         if (os == EXT2_OS_LINUX)
1145                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1146                            &inode.osd2.linux2.l_i_blocks_hi);
1147         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1148         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1149         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1150 #if 0
1151         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1152 #endif
1153         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1154         if (LINUX_S_ISDIR(inode.i_mode))
1155                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1156         else
1157                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1158
1159         if (os == EXT2_OS_HURD)
1160                 modify_u32(argv[0], "Translator Block",
1161                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1162
1163         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1164         switch (os) {
1165             case EXT2_OS_HURD:
1166                 frag = &inode.osd2.hurd2.h_i_frag;
1167                 fsize = &inode.osd2.hurd2.h_i_fsize;
1168                 break;
1169             default:
1170                 frag = fsize = 0;
1171         }
1172         if (frag)
1173                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1174         if (fsize)
1175                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1176
1177         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1178                 sprintf(buf, "Direct Block #%d", i);
1179                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1180         }
1181         modify_u32(argv[0], "Indirect Block", decimal_format,
1182                     &inode.i_block[EXT2_IND_BLOCK]);
1183         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1184                     &inode.i_block[EXT2_DIND_BLOCK]);
1185         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1186                     &inode.i_block[EXT2_TIND_BLOCK]);
1187         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1188                 return;
1189 }
1190
1191 void do_change_working_dir(int argc, char *argv[])
1192 {
1193         ext2_ino_t      inode;
1194         int             retval;
1195
1196         if (common_inode_args_process(argc, argv, &inode, 0))
1197                 return;
1198
1199         retval = ext2fs_check_directory(current_fs, inode);
1200         if (retval) {
1201                 com_err(argv[1], retval, 0);
1202                 return;
1203         }
1204         cwd = inode;
1205         return;
1206 }
1207
1208 void do_print_working_directory(int argc, char *argv[])
1209 {
1210         int     retval;
1211         char    *pathname = NULL;
1212
1213         if (common_args_process(argc, argv, 1, 1,
1214                                 "print_working_directory", "", 0))
1215                 return;
1216
1217         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1218         if (retval) {
1219                 com_err(argv[0], retval,
1220                         "while trying to get pathname of cwd");
1221         }
1222         printf("[pwd]   INODE: %6u  PATH: %s\n",
1223                cwd, pathname ? pathname : "NULL");
1224         if (pathname) {
1225                 free(pathname);
1226                 pathname = NULL;
1227         }
1228         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1229         if (retval) {
1230                 com_err(argv[0], retval,
1231                         "while trying to get pathname of root");
1232         }
1233         printf("[root]  INODE: %6u  PATH: %s\n",
1234                root, pathname ? pathname : "NULL");
1235         if (pathname) {
1236                 free(pathname);
1237                 pathname = NULL;
1238         }
1239         return;
1240 }
1241
1242 /*
1243  * Given a mode, return the ext2 file type
1244  */
1245 static int ext2_file_type(unsigned int mode)
1246 {
1247         if (LINUX_S_ISREG(mode))
1248                 return EXT2_FT_REG_FILE;
1249
1250         if (LINUX_S_ISDIR(mode))
1251                 return EXT2_FT_DIR;
1252
1253         if (LINUX_S_ISCHR(mode))
1254                 return EXT2_FT_CHRDEV;
1255
1256         if (LINUX_S_ISBLK(mode))
1257                 return EXT2_FT_BLKDEV;
1258
1259         if (LINUX_S_ISLNK(mode))
1260                 return EXT2_FT_SYMLINK;
1261
1262         if (LINUX_S_ISFIFO(mode))
1263                 return EXT2_FT_FIFO;
1264
1265         if (LINUX_S_ISSOCK(mode))
1266                 return EXT2_FT_SOCK;
1267
1268         return 0;
1269 }
1270
1271 static void make_link(char *sourcename, char *destname)
1272 {
1273         ext2_ino_t      ino;
1274         struct ext2_inode inode;
1275         int             retval;
1276         ext2_ino_t      dir;
1277         char            *dest, *cp, *base_name;
1278
1279         /*
1280          * Get the source inode
1281          */
1282         ino = string_to_inode(sourcename);
1283         if (!ino)
1284                 return;
1285         base_name = strrchr(sourcename, '/');
1286         if (base_name)
1287                 base_name++;
1288         else
1289                 base_name = sourcename;
1290         /*
1291          * Figure out the destination.  First see if it exists and is
1292          * a directory.
1293          */
1294         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1295                 dest = base_name;
1296         else {
1297                 /*
1298                  * OK, it doesn't exist.  See if it is
1299                  * '<dir>/basename' or 'basename'
1300                  */
1301                 cp = strrchr(destname, '/');
1302                 if (cp) {
1303                         *cp = 0;
1304                         dir = string_to_inode(destname);
1305                         if (!dir)
1306                                 return;
1307                         dest = cp+1;
1308                 } else {
1309                         dir = cwd;
1310                         dest = destname;
1311                 }
1312         }
1313
1314         if (debugfs_read_inode(ino, &inode, sourcename))
1315                 return;
1316
1317         retval = ext2fs_link(current_fs, dir, dest, ino,
1318                              ext2_file_type(inode.i_mode));
1319         if (retval)
1320                 com_err("make_link", retval, 0);
1321         return;
1322 }
1323
1324
1325 void do_link(int argc, char *argv[])
1326 {
1327         if (common_args_process(argc, argv, 3, 3, "link",
1328                                 "<source file> <dest_name>", CHECK_FS_RW))
1329                 return;
1330
1331         make_link(argv[1], argv[2]);
1332 }
1333
1334 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1335                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1336                             blk64_t ref_block EXT2FS_ATTR((unused)),
1337                             int ref_offset EXT2FS_ATTR((unused)),
1338                             void *private EXT2FS_ATTR((unused)))
1339 {
1340         blk64_t block;
1341
1342         block = *blocknr;
1343         ext2fs_block_alloc_stats2(fs, block, +1);
1344         return 0;
1345 }
1346
1347 void do_undel(int argc, char *argv[])
1348 {
1349         ext2_ino_t      ino;
1350         struct ext2_inode inode;
1351
1352         if (common_args_process(argc, argv, 2, 3, "undelete",
1353                                 "<inode_num> [dest_name]",
1354                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1355                 return;
1356
1357         ino = string_to_inode(argv[1]);
1358         if (!ino)
1359                 return;
1360
1361         if (debugfs_read_inode(ino, &inode, argv[1]))
1362                 return;
1363
1364         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1365                 com_err(argv[1], 0, "Inode is not marked as deleted");
1366                 return;
1367         }
1368
1369         /*
1370          * XXX this function doesn't handle changing the links count on the
1371          * parent directory when undeleting a directory.
1372          */
1373         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1374         inode.i_dtime = 0;
1375
1376         if (debugfs_write_inode(ino, &inode, argv[0]))
1377                 return;
1378
1379         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1380                               mark_blocks_proc, NULL);
1381
1382         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1383
1384         if (argc > 2)
1385                 make_link(argv[1], argv[2]);
1386 }
1387
1388 static void unlink_file_by_name(char *filename)
1389 {
1390         int             retval;
1391         ext2_ino_t      dir;
1392         char            *base_name;
1393
1394         base_name = strrchr(filename, '/');
1395         if (base_name) {
1396                 *base_name++ = '\0';
1397                 dir = string_to_inode(filename);
1398                 if (!dir)
1399                         return;
1400         } else {
1401                 dir = cwd;
1402                 base_name = filename;
1403         }
1404         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1405         if (retval)
1406                 com_err("unlink_file_by_name", retval, 0);
1407         return;
1408 }
1409
1410 void do_unlink(int argc, char *argv[])
1411 {
1412         if (common_args_process(argc, argv, 2, 2, "link",
1413                                 "<pathname>", CHECK_FS_RW))
1414                 return;
1415
1416         unlink_file_by_name(argv[1]);
1417 }
1418
1419 void do_find_free_block(int argc, char *argv[])
1420 {
1421         blk64_t free_blk, goal, first_free = 0;
1422         int             count;
1423         errcode_t       retval;
1424         char            *tmp;
1425
1426         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1427                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1428                 return;
1429         }
1430         if (check_fs_open(argv[0]))
1431                 return;
1432
1433         if (argc > 1) {
1434                 count = strtol(argv[1],&tmp,0);
1435                 if (*tmp) {
1436                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1437                         return;
1438                 }
1439         } else
1440                 count = 1;
1441
1442         if (argc > 2) {
1443                 goal = strtol(argv[2], &tmp, 0);
1444                 if (*tmp) {
1445                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1446                         return;
1447                 }
1448         }
1449         else
1450                 goal = current_fs->super->s_first_data_block;
1451
1452         printf("Free blocks found: ");
1453         free_blk = goal - 1;
1454         while (count-- > 0) {
1455                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1456                                            &free_blk);
1457                 if (first_free) {
1458                         if (first_free == free_blk)
1459                                 break;
1460                 } else
1461                         first_free = free_blk;
1462                 if (retval) {
1463                         com_err("ext2fs_new_block", retval, 0);
1464                         return;
1465                 } else
1466                         printf("%llu ", free_blk);
1467         }
1468         printf("\n");
1469 }
1470
1471 void do_find_free_inode(int argc, char *argv[])
1472 {
1473         ext2_ino_t      free_inode, dir;
1474         int             mode;
1475         int             retval;
1476         char            *tmp;
1477
1478         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1479                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1480                 return;
1481         }
1482         if (check_fs_open(argv[0]))
1483                 return;
1484
1485         if (argc > 1) {
1486                 dir = strtol(argv[1], &tmp, 0);
1487                 if (*tmp) {
1488                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1489                         return;
1490                 }
1491         }
1492         else
1493                 dir = root;
1494         if (argc > 2) {
1495                 mode = strtol(argv[2], &tmp, 0);
1496                 if (*tmp) {
1497                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1498                         return;
1499                 }
1500         } else
1501                 mode = 010755;
1502
1503         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1504         if (retval)
1505                 com_err("ext2fs_new_inode", retval, 0);
1506         else
1507                 printf("Free inode found: %u\n", free_inode);
1508 }
1509
1510 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1511 {
1512         ext2_file_t     e2_file;
1513         errcode_t       retval;
1514         int             got;
1515         unsigned int    written;
1516         char            buf[8192];
1517         char            *ptr;
1518
1519         retval = ext2fs_file_open(current_fs, newfile,
1520                                   EXT2_FILE_WRITE, &e2_file);
1521         if (retval)
1522                 return retval;
1523
1524         while (1) {
1525                 got = read(fd, buf, sizeof(buf));
1526                 if (got == 0)
1527                         break;
1528                 if (got < 0) {
1529                         retval = errno;
1530                         goto fail;
1531                 }
1532                 ptr = buf;
1533                 while (got > 0) {
1534                         retval = ext2fs_file_write(e2_file, ptr,
1535                                                    got, &written);
1536                         if (retval)
1537                                 goto fail;
1538
1539                         got -= written;
1540                         ptr += written;
1541                 }
1542         }
1543         retval = ext2fs_file_close(e2_file);
1544         return retval;
1545
1546 fail:
1547         (void) ext2fs_file_close(e2_file);
1548         return retval;
1549 }
1550
1551
1552 void do_write(int argc, char *argv[])
1553 {
1554         int             fd;
1555         struct stat     statbuf;
1556         ext2_ino_t      newfile;
1557         errcode_t       retval;
1558         struct ext2_inode inode;
1559
1560         if (common_args_process(argc, argv, 3, 3, "write",
1561                                 "<native file> <new file>", CHECK_FS_RW))
1562                 return;
1563
1564         fd = open(argv[1], O_RDONLY);
1565         if (fd < 0) {
1566                 com_err(argv[1], errno, 0);
1567                 return;
1568         }
1569         if (fstat(fd, &statbuf) < 0) {
1570                 com_err(argv[1], errno, 0);
1571                 close(fd);
1572                 return;
1573         }
1574
1575         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1576         if (retval == 0) {
1577                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1578                 close(fd);
1579                 return;
1580         }
1581
1582         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1583         if (retval) {
1584                 com_err(argv[0], retval, 0);
1585                 close(fd);
1586                 return;
1587         }
1588         printf("Allocated inode: %u\n", newfile);
1589         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1590                              EXT2_FT_REG_FILE);
1591         if (retval == EXT2_ET_DIR_NO_SPACE) {
1592                 retval = ext2fs_expand_dir(current_fs, cwd);
1593                 if (retval) {
1594                         com_err(argv[0], retval, "while expanding directory");
1595                         close(fd);
1596                         return;
1597                 }
1598                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1599                                      EXT2_FT_REG_FILE);
1600         }
1601         if (retval) {
1602                 com_err(argv[2], retval, 0);
1603                 close(fd);
1604                 return;
1605         }
1606         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1607                 com_err(argv[0], 0, "Warning: inode already set");
1608         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1609         memset(&inode, 0, sizeof(inode));
1610         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1611         inode.i_atime = inode.i_ctime = inode.i_mtime =
1612                 current_fs->now ? current_fs->now : time(0);
1613         inode.i_links_count = 1;
1614         inode.i_size = statbuf.st_size;
1615         if (current_fs->super->s_feature_incompat &
1616             EXT3_FEATURE_INCOMPAT_EXTENTS)
1617                 inode.i_flags |= EXT4_EXTENTS_FL;
1618         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1619                 close(fd);
1620                 return;
1621         }
1622         if (LINUX_S_ISREG(inode.i_mode)) {
1623                 retval = copy_file(fd, newfile);
1624                 if (retval)
1625                         com_err("copy_file", retval, 0);
1626         }
1627         close(fd);
1628 }
1629
1630 void do_mknod(int argc, char *argv[])
1631 {
1632         unsigned long   mode, major, minor;
1633         ext2_ino_t      newfile;
1634         errcode_t       retval;
1635         struct ext2_inode inode;
1636         int             filetype, nr;
1637
1638         if (check_fs_open(argv[0]))
1639                 return;
1640         if (argc < 3 || argv[2][1]) {
1641         usage:
1642                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1643                 return;
1644         }
1645         mode = minor = major = 0;
1646         switch (argv[2][0]) {
1647                 case 'p':
1648                         mode = LINUX_S_IFIFO;
1649                         filetype = EXT2_FT_FIFO;
1650                         nr = 3;
1651                         break;
1652                 case 'c':
1653                         mode = LINUX_S_IFCHR;
1654                         filetype = EXT2_FT_CHRDEV;
1655                         nr = 5;
1656                         break;
1657                 case 'b':
1658                         mode = LINUX_S_IFBLK;
1659                         filetype = EXT2_FT_BLKDEV;
1660                         nr = 5;
1661                         break;
1662                 default:
1663                         filetype = 0;
1664                         nr = 0;
1665         }
1666         if (nr == 5) {
1667                 major = strtoul(argv[3], argv+3, 0);
1668                 minor = strtoul(argv[4], argv+4, 0);
1669                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1670                         nr = 0;
1671         }
1672         if (argc != nr)
1673                 goto usage;
1674         if (check_fs_read_write(argv[0]))
1675                 return;
1676         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1677         if (retval) {
1678                 com_err(argv[0], retval, 0);
1679                 return;
1680         }
1681         printf("Allocated inode: %u\n", newfile);
1682         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1683         if (retval == EXT2_ET_DIR_NO_SPACE) {
1684                 retval = ext2fs_expand_dir(current_fs, cwd);
1685                 if (retval) {
1686                         com_err(argv[0], retval, "while expanding directory");
1687                         return;
1688                 }
1689                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1690                                      filetype);
1691         }
1692         if (retval) {
1693                 com_err(argv[1], retval, 0);
1694                 return;
1695         }
1696         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1697                 com_err(argv[0], 0, "Warning: inode already set");
1698         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1699         ext2fs_mark_ib_dirty(current_fs);
1700         memset(&inode, 0, sizeof(inode));
1701         inode.i_mode = mode;
1702         inode.i_atime = inode.i_ctime = inode.i_mtime =
1703                 current_fs->now ? current_fs->now : time(0);
1704         if ((major < 256) && (minor < 256)) {
1705                 inode.i_block[0] = major*256+minor;
1706                 inode.i_block[1] = 0;
1707         } else {
1708                 inode.i_block[0] = 0;
1709                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1710         }
1711         inode.i_links_count = 1;
1712         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1713                 return;
1714 }
1715
1716 void do_mkdir(int argc, char *argv[])
1717 {
1718         char    *cp;
1719         ext2_ino_t      parent;
1720         char    *name;
1721         errcode_t retval;
1722
1723         if (common_args_process(argc, argv, 2, 2, "mkdir",
1724                                 "<filename>", CHECK_FS_RW))
1725                 return;
1726
1727         cp = strrchr(argv[1], '/');
1728         if (cp) {
1729                 *cp = 0;
1730                 parent = string_to_inode(argv[1]);
1731                 if (!parent) {
1732                         com_err(argv[1], ENOENT, 0);
1733                         return;
1734                 }
1735                 name = cp+1;
1736         } else {
1737                 parent = cwd;
1738                 name = argv[1];
1739         }
1740
1741 try_again:
1742         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1743         if (retval == EXT2_ET_DIR_NO_SPACE) {
1744                 retval = ext2fs_expand_dir(current_fs, parent);
1745                 if (retval) {
1746                         com_err(argv[0], retval, "while expanding directory");
1747                         return;
1748                 }
1749                 goto try_again;
1750         }
1751         if (retval) {
1752                 com_err("ext2fs_mkdir", retval, 0);
1753                 return;
1754         }
1755
1756 }
1757
1758 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1759                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1760                                blk64_t ref_block EXT2FS_ATTR((unused)),
1761                                int ref_offset EXT2FS_ATTR((unused)),
1762                                void *private EXT2FS_ATTR((unused)))
1763 {
1764         blk64_t block;
1765
1766         block = *blocknr;
1767         ext2fs_block_alloc_stats2(fs, block, -1);
1768         return 0;
1769 }
1770
1771 static void kill_file_by_inode(ext2_ino_t inode)
1772 {
1773         struct ext2_inode inode_buf;
1774
1775         if (debugfs_read_inode(inode, &inode_buf, 0))
1776                 return;
1777         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1778         if (debugfs_write_inode(inode, &inode_buf, 0))
1779                 return;
1780         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1781                 return;
1782
1783         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1784                               release_blocks_proc, NULL);
1785         printf("\n");
1786         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1787                                   LINUX_S_ISDIR(inode_buf.i_mode));
1788 }
1789
1790
1791 void do_kill_file(int argc, char *argv[])
1792 {
1793         ext2_ino_t inode_num;
1794
1795         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1796                 return;
1797
1798         kill_file_by_inode(inode_num);
1799 }
1800
1801 void do_rm(int argc, char *argv[])
1802 {
1803         int retval;
1804         ext2_ino_t inode_num;
1805         struct ext2_inode inode;
1806
1807         if (common_args_process(argc, argv, 2, 2, "rm",
1808                                 "<filename>", CHECK_FS_RW))
1809                 return;
1810
1811         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1812         if (retval) {
1813                 com_err(argv[0], retval, "while trying to resolve filename");
1814                 return;
1815         }
1816
1817         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1818                 return;
1819
1820         if (LINUX_S_ISDIR(inode.i_mode)) {
1821                 com_err(argv[0], 0, "file is a directory");
1822                 return;
1823         }
1824
1825         --inode.i_links_count;
1826         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1827                 return;
1828
1829         unlink_file_by_name(argv[1]);
1830         if (inode.i_links_count == 0)
1831                 kill_file_by_inode(inode_num);
1832 }
1833
1834 struct rd_struct {
1835         ext2_ino_t      parent;
1836         int             empty;
1837 };
1838
1839 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1840                       int       entry EXT2FS_ATTR((unused)),
1841                       struct ext2_dir_entry *dirent,
1842                       int       offset EXT2FS_ATTR((unused)),
1843                       int       blocksize EXT2FS_ATTR((unused)),
1844                       char      *buf EXT2FS_ATTR((unused)),
1845                       void      *private)
1846 {
1847         struct rd_struct *rds = (struct rd_struct *) private;
1848
1849         if (dirent->inode == 0)
1850                 return 0;
1851         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1852                 return 0;
1853         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1854             (dirent->name[1] == '.')) {
1855                 rds->parent = dirent->inode;
1856                 return 0;
1857         }
1858         rds->empty = 0;
1859         return 0;
1860 }
1861
1862 void do_rmdir(int argc, char *argv[])
1863 {
1864         int retval;
1865         ext2_ino_t inode_num;
1866         struct ext2_inode inode;
1867         struct rd_struct rds;
1868
1869         if (common_args_process(argc, argv, 2, 2, "rmdir",
1870                                 "<filename>", CHECK_FS_RW))
1871                 return;
1872
1873         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1874         if (retval) {
1875                 com_err(argv[0], retval, "while trying to resolve filename");
1876                 return;
1877         }
1878
1879         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1880                 return;
1881
1882         if (!LINUX_S_ISDIR(inode.i_mode)) {
1883                 com_err(argv[0], 0, "file is not a directory");
1884                 return;
1885         }
1886
1887         rds.parent = 0;
1888         rds.empty = 1;
1889
1890         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1891                                     0, rmdir_proc, &rds);
1892         if (retval) {
1893                 com_err(argv[0], retval, "while iterating over directory");
1894                 return;
1895         }
1896         if (rds.empty == 0) {
1897                 com_err(argv[0], 0, "directory not empty");
1898                 return;
1899         }
1900
1901         inode.i_links_count = 0;
1902         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1903                 return;
1904
1905         unlink_file_by_name(argv[1]);
1906         kill_file_by_inode(inode_num);
1907
1908         if (rds.parent) {
1909                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1910                         return;
1911                 if (inode.i_links_count > 1)
1912                         inode.i_links_count--;
1913                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1914                         return;
1915         }
1916 }
1917
1918 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1919                             char *argv[] EXT2FS_ATTR((unused)))
1920 {
1921         FILE *out = stdout;
1922
1923         if (current_fs)
1924                 fprintf(out, "Open mode: read-%s\n",
1925                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1926         fprintf(out, "Filesystem in use: %s\n",
1927                 current_fs ? current_fs->device_name : "--none--");
1928 }
1929
1930 void do_expand_dir(int argc, char *argv[])
1931 {
1932         ext2_ino_t inode;
1933         int retval;
1934
1935         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1936                 return;
1937
1938         retval = ext2fs_expand_dir(current_fs, inode);
1939         if (retval)
1940                 com_err("ext2fs_expand_dir", retval, 0);
1941         return;
1942 }
1943
1944 void do_features(int argc, char *argv[])
1945 {
1946         int     i;
1947
1948         if (check_fs_open(argv[0]))
1949                 return;
1950
1951         if ((argc != 1) && check_fs_read_write(argv[0]))
1952                 return;
1953         for (i=1; i < argc; i++) {
1954                 if (e2p_edit_feature(argv[i],
1955                                      &current_fs->super->s_feature_compat, 0))
1956                         com_err(argv[0], 0, "Unknown feature: %s\n",
1957                                 argv[i]);
1958                 else
1959                         ext2fs_mark_super_dirty(current_fs);
1960         }
1961         print_features(current_fs->super, stdout);
1962 }
1963
1964 void do_bmap(int argc, char *argv[])
1965 {
1966         ext2_ino_t      ino;
1967         blk64_t         blk, pblk;
1968         int             err;
1969         errcode_t       errcode;
1970
1971         if (common_args_process(argc, argv, 3, 3, argv[0],
1972                                 "<file> logical_blk", 0))
1973                 return;
1974
1975         ino = string_to_inode(argv[1]);
1976         if (!ino)
1977                 return;
1978         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1979
1980         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1981         if (errcode) {
1982                 com_err("argv[0]", errcode,
1983                         "while mapping logical block %llu\n", blk);
1984                 return;
1985         }
1986         printf("%llu\n", pblk);
1987 }
1988
1989 void do_imap(int argc, char *argv[])
1990 {
1991         ext2_ino_t      ino;
1992         unsigned long   group, block, block_nr, offset;
1993
1994         if (common_args_process(argc, argv, 2, 2, argv[0],
1995                                 "<file>", 0))
1996                 return;
1997         ino = string_to_inode(argv[1]);
1998         if (!ino)
1999                 return;
2000
2001         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2002         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2003                 EXT2_INODE_SIZE(current_fs->super);
2004         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2005         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2006                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2007                         group);
2008                 return;
2009         }
2010         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2011                 block;
2012         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2013
2014         printf("Inode %d is part of block group %lu\n"
2015                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2016                block_nr, offset);
2017
2018 }
2019
2020 void do_set_current_time(int argc, char *argv[])
2021 {
2022         time_t now;
2023
2024         if (common_args_process(argc, argv, 2, 2, argv[0],
2025                                 "<time>", 0))
2026                 return;
2027
2028         now = string_to_time(argv[1]);
2029         if (now == ((time_t) -1)) {
2030                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2031                         argv[1]);
2032                 return;
2033
2034         } else {
2035                 printf("Setting current time to %s\n", time_to_string(now));
2036                 current_fs->now = now;
2037         }
2038 }
2039
2040 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2041 {
2042         int compat, bit, ret;
2043         unsigned int feature_mask;
2044
2045         if (name) {
2046                 if (feature_type == E2P_FS_FEATURE)
2047                         ret = e2p_string2feature(name, &compat, &feature_mask);
2048                 else
2049                         ret = e2p_jrnl_string2feature(name, &compat,
2050                                                       &feature_mask);
2051                 if (ret)
2052                         return ret;
2053
2054                 if (!(supp[compat] & feature_mask))
2055                         return 1;
2056         } else {
2057                 for (compat = 0; compat < 3; compat++) {
2058                         for (bit = 0, feature_mask = 1; bit < 32;
2059                              bit++, feature_mask <<= 1) {
2060                                 if (supp[compat] & feature_mask) {
2061                                         if (feature_type == E2P_FS_FEATURE)
2062                                                 fprintf(stdout, " %s",
2063                                                 e2p_feature2string(compat,
2064                                                 feature_mask));
2065                                         else
2066                                                 fprintf(stdout, " %s",
2067                                                 e2p_jrnl_feature2string(compat,
2068                                                 feature_mask));
2069                                 }
2070                         }
2071                 }
2072                 fprintf(stdout, "\n");
2073         }
2074
2075         return 0;
2076 }
2077
2078 void do_supported_features(int argc, char *argv[])
2079 {
2080         int     ret;
2081         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2082                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2083                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2084         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2085                                  JFS_KNOWN_INCOMPAT_FEATURES,
2086                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2087
2088         if (argc > 1) {
2089                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2090                 if (ret) {
2091                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2092                                                 argv[1]);
2093                 }
2094                 if (ret)
2095                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2096                 else
2097                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2098         } else {
2099                 fprintf(stdout, "Supported features:");
2100                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2101                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2102         }
2103 }
2104
2105 static int source_file(const char *cmd_file, int sci_idx)
2106 {
2107         FILE            *f;
2108         char            buf[256];
2109         char            *cp;
2110         int             exit_status = 0;
2111         int             retval;
2112
2113         if (strcmp(cmd_file, "-") == 0)
2114                 f = stdin;
2115         else {
2116                 f = fopen(cmd_file, "r");
2117                 if (!f) {
2118                         perror(cmd_file);
2119                         exit(1);
2120                 }
2121         }
2122         fflush(stdout);
2123         fflush(stderr);
2124         setbuf(stdout, NULL);
2125         setbuf(stderr, NULL);
2126         while (!feof(f)) {
2127                 if (fgets(buf, sizeof(buf), f) == NULL)
2128                         break;
2129                 cp = strchr(buf, '\n');
2130                 if (cp)
2131                         *cp = 0;
2132                 cp = strchr(buf, '\r');
2133                 if (cp)
2134                         *cp = 0;
2135                 printf("debugfs: %s\n", buf);
2136                 retval = ss_execute_line(sci_idx, buf);
2137                 if (retval) {
2138                         ss_perror(sci_idx, retval, buf);
2139                         exit_status++;
2140                 }
2141         }
2142         if (f != stdin)
2143                 fclose(f);
2144         return exit_status;
2145 }
2146
2147 int main(int argc, char **argv)
2148 {
2149         int             retval;
2150         int             sci_idx;
2151         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2152         int             c;
2153         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2154         char            *request = 0;
2155         int             exit_status = 0;
2156         char            *cmd_file = 0;
2157         blk64_t         superblock = 0;
2158         blk64_t         blocksize = 0;
2159         int             catastrophic = 0;
2160         char            *data_filename = 0;
2161
2162         if (debug_prog_name == 0)
2163                 debug_prog_name = "debugfs";
2164
2165         add_error_table(&et_ext2_error_table);
2166         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2167                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2168
2169         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
2170                 switch (c) {
2171                 case 'R':
2172                         request = optarg;
2173                         break;
2174                 case 'f':
2175                         cmd_file = optarg;
2176                         break;
2177                 case 'd':
2178                         data_filename = optarg;
2179                         break;
2180                 case 'i':
2181                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2182                         break;
2183                 case 'w':
2184                         open_flags |= EXT2_FLAG_RW;
2185                         break;
2186                 case 'b':
2187                         blocksize = parse_ulong(optarg, argv[0],
2188                                                 "block size", 0);
2189                         break;
2190                 case 's':
2191                         superblock = parse_ulong(optarg, argv[0],
2192                                                  "superblock number", 0);
2193                         break;
2194                 case 'c':
2195                         catastrophic = 1;
2196                         break;
2197                 case 'V':
2198                         /* Print version number and exit */
2199                         fprintf(stderr, "\tUsing %s\n",
2200                                 error_message(EXT2_ET_BASE));
2201                         exit(0);
2202                 default:
2203                         com_err(argv[0], 0, usage, debug_prog_name);
2204                         return 1;
2205                 }
2206         }
2207         if (optind < argc)
2208                 open_filesystem(argv[optind], open_flags,
2209                                 superblock, blocksize, catastrophic,
2210                                 data_filename);
2211
2212         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2213                                        &debug_cmds, &retval);
2214         if (retval) {
2215                 ss_perror(sci_idx, retval, "creating invocation");
2216                 exit(1);
2217         }
2218         ss_get_readline(sci_idx);
2219
2220         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2221         if (retval) {
2222                 ss_perror(sci_idx, retval, "adding standard requests");
2223                 exit (1);
2224         }
2225         if (extra_cmds)
2226                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2227         if (retval) {
2228                 ss_perror(sci_idx, retval, "adding extra requests");
2229                 exit (1);
2230         }
2231         if (request) {
2232                 retval = 0;
2233                 retval = ss_execute_line(sci_idx, request);
2234                 if (retval) {
2235                         ss_perror(sci_idx, retval, request);
2236                         exit_status++;
2237                 }
2238         } else if (cmd_file) {
2239                 exit_status = source_file(cmd_file, sci_idx);
2240         } else {
2241                 ss_listen(sci_idx);
2242         }
2243
2244         ss_delete_invocation(sci_idx);
2245
2246         if (current_fs)
2247                 close_filesystem();
2248
2249         remove_error_table(&et_ext2_error_table);
2250         return exit_status;
2251 }