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