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debugfs "stat" should print unsigned values for xattrs
[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
42 ext2_filsys     current_fs = NULL;
43 ext2_ino_t      root, cwd;
44
45 static void open_filesystem(char *device, int open_flags, blk_t superblock,
46                             blk_t blocksize, int catastrophic, 
47                             char *data_filename)
48 {
49         int     retval;
50         io_channel data_io = 0;
51
52         if (superblock != 0 && blocksize == 0) {
53                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
54                 current_fs = NULL;
55                 return;
56         }
57
58         if (data_filename) {
59                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
60                         com_err(device, 0, 
61                                 "The -d option is only valid when reading an e2image file");
62                         current_fs = NULL;
63                         return;
64                 }
65                 retval = unix_io_manager->open(data_filename, 0, &data_io);
66                 if (retval) {
67                         com_err(data_filename, 0, "while opening data source");
68                         current_fs = NULL;
69                         return;
70                 }
71         }
72
73         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
74                 com_err(device, 0,
75                         "opening read-only because of catastrophic mode");
76                 open_flags &= ~EXT2_FLAG_RW;
77         }
78         
79         retval = ext2fs_open(device, open_flags, superblock, blocksize,
80                              unix_io_manager, &current_fs);
81         if (retval) {
82                 com_err(device, retval, "while opening filesystem");
83                 current_fs = NULL;
84                 return;
85         }
86
87         if (catastrophic)
88                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
89         else {
90                 retval = ext2fs_read_inode_bitmap(current_fs);
91                 if (retval) {
92                         com_err(device, retval, "while reading inode bitmap");
93                         goto errout;
94                 }
95                 retval = ext2fs_read_block_bitmap(current_fs);
96                 if (retval) {
97                         com_err(device, retval, "while reading block bitmap");
98                         goto errout;
99                 }
100         }
101
102         if (data_io) {
103                 retval = ext2fs_set_data_io(current_fs, data_io);
104                 if (retval) {
105                         com_err(device, retval, 
106                                 "while setting data source");
107                         goto errout;
108                 }
109         }
110
111         root = cwd = EXT2_ROOT_INO;
112         return;
113
114 errout:
115         retval = ext2fs_close(current_fs);
116         if (retval)
117                 com_err(device, retval, "while trying to close filesystem");
118         current_fs = NULL;
119 }
120
121 void do_open_filesys(int argc, char **argv)
122 {
123         int     c, err;
124         int     catastrophic = 0;
125         blk_t   superblock = 0;
126         blk_t   blocksize = 0;
127         int     open_flags = 0;
128         char    *data_filename = 0;
129         
130         reset_getopt();
131         while ((c = getopt (argc, argv, "iwfecb:s:d:")) != EOF) {
132                 switch (c) {
133                 case 'i':
134                         open_flags |= EXT2_FLAG_IMAGE_FILE;
135                         break;
136                 case 'w':
137                         open_flags |= EXT2_FLAG_RW;
138                         break;
139                 case 'f':
140                         open_flags |= EXT2_FLAG_FORCE;
141                         break;
142                 case 'e':
143                         open_flags |= EXT2_FLAG_EXCLUSIVE;
144                         break;
145                 case 'c':
146                         catastrophic = 1;
147                         break;
148                 case 'd':
149                         data_filename = optarg;
150                         break;
151                 case 'b':
152                         blocksize = parse_ulong(optarg, argv[0],
153                                                 "block size", &err);
154                         if (err)
155                                 return;
156                         break;
157                 case 's':
158                         superblock = parse_ulong(optarg, argv[0],
159                                                  "superblock number", &err);
160                         if (err)
161                                 return;
162                         break;
163                 default:
164                         goto print_usage;
165                 }
166         }
167         if (optind != argc-1) {
168                 goto print_usage;
169         }
170         if (check_fs_not_open(argv[0]))
171                 return;
172         open_filesystem(argv[optind], open_flags,
173                         superblock, blocksize, catastrophic, 
174                         data_filename);
175         return;
176
177 print_usage:
178         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
179                 "[-c] [-w] <device>\n", argv[0]);
180 }
181
182 void do_lcd(int argc, char **argv)
183 {
184         if (common_args_process(argc, argv, 2, 2, "lcd",
185                                 "<native dir>", 0))
186                 return;
187
188         if (chdir(argv[1]) == -1) {
189                 com_err(argv[0], errno,
190                         "while trying to change native directory to %s",
191                         argv[1]);
192                 return;
193         }
194 }
195
196 static void close_filesystem(NOARGS)
197 {
198         int     retval;
199         
200         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
201                 retval = ext2fs_write_inode_bitmap(current_fs);
202                 if (retval)
203                         com_err("ext2fs_write_inode_bitmap", retval, 0);
204         }
205         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
206                 retval = ext2fs_write_block_bitmap(current_fs);
207                 if (retval)
208                         com_err("ext2fs_write_block_bitmap", retval, 0);
209         }
210         retval = ext2fs_close(current_fs);
211         if (retval)
212                 com_err("ext2fs_close", retval, 0);
213         current_fs = NULL;
214         return;
215 }
216
217 void do_close_filesys(int argc, char **argv)
218 {
219         if (common_args_process(argc, argv, 1, 1, "close_filesys", "", 0))
220                 return;
221         close_filesystem();
222 }
223
224 void do_init_filesys(int argc, char **argv)
225 {
226         struct ext2_super_block param;
227         errcode_t       retval;
228         int             err;
229         
230         if (common_args_process(argc, argv, 3, 3, "initialize",
231                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
232                 return;
233
234         memset(&param, 0, sizeof(struct ext2_super_block));
235         param.s_blocks_count = parse_ulong(argv[2], argv[0],
236                                            "blocks count", &err);
237         if (err)
238                 return;
239         retval = ext2fs_initialize(argv[1], 0, &param,
240                                    unix_io_manager, &current_fs);
241         if (retval) {
242                 com_err(argv[1], retval, "while initializing filesystem");
243                 current_fs = NULL;
244                 return;
245         }
246         root = cwd = EXT2_ROOT_INO;
247         return;
248 }
249
250 static void print_features(struct ext2_super_block * s, FILE *f)
251 {
252         int     i, j, printed=0;
253         __u32   *mask = &s->s_feature_compat, m;
254
255         fputs("Filesystem features:", f);
256         for (i=0; i <3; i++,mask++) {
257                 for (j=0,m=1; j < 32; j++, m<<=1) {
258                         if (*mask & m) {
259                                 fprintf(f, " %s", e2p_feature2string(i, m));
260                                 printed++;
261                         }
262                 }
263         }
264         if (printed == 0)
265                 fputs("(none)", f);
266         fputs("\n", f);
267 }
268
269 static void print_bg_opts(struct ext2_group_desc *gdp, int mask,
270                           const char *str, int *first, FILE *f)
271 {
272         if (gdp->bg_flags & mask) {
273                 if (*first) {
274                         fputs("           [", f);
275                         *first = 0;
276                 } else
277                         fputs(", ", f);
278                 fputs(str, f);
279         }
280 }
281
282 void do_show_super_stats(int argc, char *argv[])
283 {
284         dgrp_t  i;
285         FILE    *out;
286         struct ext2_group_desc *gdp;
287         int     c, header_only = 0;
288         int     numdirs = 0, first;
289
290         reset_getopt();
291         while ((c = getopt (argc, argv, "h")) != EOF) {
292                 switch (c) {
293                 case 'h':
294                         header_only++;
295                         break;
296                 default:
297                         goto print_usage;
298                 }
299         }
300         if (optind != argc) {
301                 goto print_usage;
302         }
303         if (check_fs_open(argv[0]))
304                 return;
305         out = open_pager();
306
307         list_super2(current_fs->super, out);
308         for (i=0; i < current_fs->group_desc_count; i++)
309                 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
310         fprintf(out, "Directories:              %d\n", numdirs);
311         
312         if (header_only) {
313                 close_pager(out);
314                 return;
315         }
316         
317         gdp = &current_fs->group_desc[0];
318         for (i = 0; i < current_fs->group_desc_count; i++, gdp++) {
319                 fprintf(out, " Group %2d: block bitmap at %u, "
320                         "inode bitmap at %u, "
321                         "inode table at %u\n"
322                         "           %d free %s, "
323                         "%d free %s, "
324                         "%d used %s\n",
325                         i, gdp->bg_block_bitmap,
326                         gdp->bg_inode_bitmap, gdp->bg_inode_table,
327                         gdp->bg_free_blocks_count,
328                         gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
329                         gdp->bg_free_inodes_count,
330                         gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
331                         gdp->bg_used_dirs_count,
332                         gdp->bg_used_dirs_count != 1 ? "directories"
333                                 : "directory");
334                 first = 1;
335                 print_bg_opts(gdp, EXT2_BG_INODE_UNINIT, "Inode not init",
336                               &first, out);
337                 print_bg_opts(gdp, EXT2_BG_BLOCK_UNINIT, "Block not init",
338                               &first, out);
339                 if (!first)
340                         fputs("]\n", out);
341         }
342         close_pager(out);
343         return;
344 print_usage:
345         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
346 }
347
348 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 
349                       char **argv EXT2FS_ATTR((unused)))
350 {
351         if (check_fs_open(argv[0]))
352                 return;
353         if (check_fs_read_write(argv[0]))
354                 return;
355
356         if (argv[1] && !strcmp(argv[1], "-clean"))
357                 current_fs->super->s_state |= EXT2_VALID_FS;
358         else
359                 current_fs->super->s_state &= ~EXT2_VALID_FS;
360         ext2fs_mark_super_dirty(current_fs);
361 }
362
363 struct list_blocks_struct {
364         FILE            *f;
365         e2_blkcnt_t     total;
366         blk_t           first_block, last_block;
367         e2_blkcnt_t     first_bcnt, last_bcnt;
368         e2_blkcnt_t     first;
369 };
370
371 static void finish_range(struct list_blocks_struct *lb)
372 {
373         if (lb->first_block == 0)
374                 return;
375         if (lb->first)
376                 lb->first = 0;
377         else
378                 fprintf(lb->f, ", ");
379         if (lb->first_block == lb->last_block)
380                 fprintf(lb->f, "(%lld):%u", lb->first_bcnt, lb->first_block);
381         else
382                 fprintf(lb->f, "(%lld-%lld):%u-%u", lb->first_bcnt,
383                         lb->last_bcnt, lb->first_block, lb->last_block);
384         lb->first_block = 0;
385 }
386
387 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 
388                             blk_t *blocknr, e2_blkcnt_t blockcnt, 
389                             blk_t ref_block EXT2FS_ATTR((unused)),
390                             int ref_offset EXT2FS_ATTR((unused)), 
391                             void *private)
392 {
393         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
394
395         lb->total++;
396         if (blockcnt >= 0) {
397                 /*
398                  * See if we can add on to the existing range (if it exists)
399                  */
400                 if (lb->first_block &&
401                     (lb->last_block+1 == *blocknr) &&
402                     (lb->last_bcnt+1 == blockcnt)) {
403                         lb->last_block = *blocknr;
404                         lb->last_bcnt = blockcnt;
405                         return 0;
406                 }
407                 /*
408                  * Start a new range.
409                  */
410                 finish_range(lb);
411                 lb->first_block = lb->last_block = *blocknr;
412                 lb->first_bcnt = lb->last_bcnt = blockcnt;
413                 return 0;
414         }
415         /*
416          * Not a normal block.  Always force a new range.
417          */
418         finish_range(lb);
419         if (lb->first)
420                 lb->first = 0;
421         else
422                 fprintf(lb->f, ", ");
423         if (blockcnt == -1)
424                 fprintf(lb->f, "(IND):%u", *blocknr);
425         else if (blockcnt == -2)
426                 fprintf(lb->f, "(DIND):%u", *blocknr);
427         else if (blockcnt == -3)
428                 fprintf(lb->f, "(TIND):%u", *blocknr);
429         return 0;
430 }
431
432 static void dump_xattr_string(FILE *out, const char *str, int len)
433 {
434         int printable = 1;
435         int i;
436         
437         /* check is string printable? */
438         for (i = 0; i < len; i++)
439                 if (!isprint(str[i])) {
440                         printable = 0;
441                         break;
442                 }
443
444         for (i = 0; i < len; i++)
445                 if (printable)
446                         fprintf(out, "%c", (unsigned char)str[i]);
447                 else
448                         fprintf(out, "%02x ", (unsigned char)str[i]);
449 }
450
451 static void internal_dump_inode_extra(FILE *out, const char *prefix,
452                                       ext2_ino_t inode_num, 
453                                       struct ext2_inode_large *inode)
454 {
455         struct ext2_ext_attr_entry *entry;
456         __u32 *magic;
457         char *start, *end;
458         unsigned int storage_size;
459
460         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
461         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
462                         EXT2_GOOD_OLD_INODE_SIZE) {
463                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
464                                 inode->i_extra_isize);
465                 return;
466         }
467         storage_size = EXT2_INODE_SIZE(current_fs->super) -
468                         EXT2_GOOD_OLD_INODE_SIZE -
469                         inode->i_extra_isize;
470         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
471                         inode->i_extra_isize);
472         if (*magic == EXT2_EXT_ATTR_MAGIC) {
473                 fprintf(out, "Extended attributes stored in inode body: \n");
474                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
475                 start = (char *) magic + sizeof(__u32);
476                 entry = (struct ext2_ext_attr_entry *) start;
477                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
478                         struct ext2_ext_attr_entry *next =
479                                 EXT2_EXT_ATTR_NEXT(entry);
480                         if (entry->e_value_size > storage_size ||
481                                         (char *) next >= end) {
482                                 fprintf(out, "invalid EA entry in inode\n");
483                                 return;
484                         }
485                         fprintf(out, "  ");
486                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 
487                                           entry->e_name_len);
488                         fprintf(out, " = \"");
489                         dump_xattr_string(out, start + entry->e_value_offs,
490                                                 entry->e_value_size);
491                         fprintf(out, "\" (%u)\n", entry->e_value_size);
492                         entry = next;
493                 }
494         }
495 }
496
497 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
498 {
499         struct list_blocks_struct lb;
500
501         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
502         lb.total = 0;
503         lb.first_block = 0;
504         lb.f = f;
505         lb.first = 1;
506         ext2fs_block_iterate2(current_fs, inode, 0, NULL,
507                              list_blocks_proc, (void *)&lb);
508         finish_range(&lb);
509         if (lb.total)
510                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, lb.total);
511         fprintf(f,"\n");
512 }
513
514
515 void internal_dump_inode(FILE *out, const char *prefix,
516                          ext2_ino_t inode_num, struct ext2_inode *inode,
517                          int do_dump_blocks)
518 {
519         const char *i_type;
520         char frag, fsize;
521         int os = current_fs->super->s_creator_os;
522         
523         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
524         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
525         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
526         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
527         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
528         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
529         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
530         else i_type = "bad type";
531         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
532         fprintf(out, "%sMode:  %04o   Flags: 0x%x   Generation: %u\n",
533                 prefix, 
534                 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
535         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
536                 prefix, inode->i_uid, inode->i_gid);
537         if (LINUX_S_ISREG(inode->i_mode)) {
538                 __u64 i_size = (inode->i_size |
539                                 ((unsigned long long)inode->i_size_high << 32));
540
541                 fprintf(out, "%lld\n", i_size);
542         } else
543                 fprintf(out, "%d\n", inode->i_size);
544         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
545                 fprintf(out,
546                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
547                         prefix,
548                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
549                         inode->osd1.hurd1.h_i_translator);
550         else
551                 fprintf(out, "%sFile ACL: %d    Directory ACL: %d\n",
552                         prefix,
553                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
554         fprintf(out, "%sLinks: %d   Blockcount: %u\n",
555                 prefix, inode->i_links_count, inode->i_blocks);
556         switch (os) {
557             case EXT2_OS_LINUX:
558                 frag = inode->osd2.linux2.l_i_frag;
559                 fsize = inode->osd2.linux2.l_i_fsize;
560                 break;
561             case EXT2_OS_HURD:
562                 frag = inode->osd2.hurd2.h_i_frag;
563                 fsize = inode->osd2.hurd2.h_i_fsize;
564                 break;
565             case EXT2_OS_MASIX:
566                 frag = inode->osd2.masix2.m_i_frag;
567                 fsize = inode->osd2.masix2.m_i_fsize;
568                 break;
569             default:
570                 frag = fsize = 0;
571         }
572         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
573                 prefix, inode->i_faddr, frag, fsize);
574         fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
575                 time_to_string(inode->i_ctime));
576         fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
577                 time_to_string(inode->i_atime));
578         fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
579                 time_to_string(inode->i_mtime));
580         if (inode->i_dtime) 
581           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
582                   time_to_string(inode->i_dtime));
583         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
584                 internal_dump_inode_extra(out, prefix, inode_num,
585                                           (struct ext2_inode_large *) inode);
586         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
587                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
588                         (int) inode->i_size, (char *)inode->i_block);
589         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
590                 int major, minor;
591                 const char *devnote;
592
593                 if (inode->i_block[0]) {
594                         major = (inode->i_block[0] >> 8) & 255;
595                         minor = inode->i_block[0] & 255;
596                         devnote = "";
597                 } else {
598                         major = (inode->i_block[1] & 0xfff00) >> 8;
599                         minor = ((inode->i_block[1] & 0xff) | 
600                                  ((inode->i_block[1] >> 12) & 0xfff00));
601                         devnote = "(New-style) ";
602                 }
603                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 
604                         devnote, major, minor, major, minor);
605         }
606         else if (do_dump_blocks)
607                 dump_blocks(out, prefix, inode_num);
608 }
609
610 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
611 {
612         FILE    *out;
613         
614         out = open_pager();
615         internal_dump_inode(out, "", inode_num, inode, 1);
616         close_pager(out);
617 }
618
619 void do_stat(int argc, char *argv[])
620 {
621         ext2_ino_t      inode;
622         struct ext2_inode * inode_buf;
623
624         if (check_fs_open(argv[0]))
625                 return;
626
627         inode_buf = (struct ext2_inode *)
628                         malloc(EXT2_INODE_SIZE(current_fs->super));
629         if (!inode_buf) {
630                 fprintf(stderr, "do_stat: can't allocate buffer\n");
631                 return;
632         }
633
634         if (common_inode_args_process(argc, argv, &inode, 0)) {
635                 free(inode_buf);
636                 return;
637         }
638
639         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
640                                         EXT2_INODE_SIZE(current_fs->super))) {
641                 free(inode_buf);
642                 return;
643         }
644
645         dump_inode(inode, inode_buf);
646         free(inode_buf);
647         return;
648 }
649
650 void do_chroot(int argc, char *argv[])
651 {
652         ext2_ino_t inode;
653         int retval;
654
655         if (common_inode_args_process(argc, argv, &inode, 0))
656                 return;
657
658         retval = ext2fs_check_directory(current_fs, inode);
659         if (retval)  {
660                 com_err(argv[1], retval, 0);
661                 return;
662         }
663         root = inode;
664 }
665
666 void do_clri(int argc, char *argv[])
667 {
668         ext2_ino_t inode;
669         struct ext2_inode inode_buf;
670
671         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
672                 return;
673
674         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
675                 return;
676         memset(&inode_buf, 0, sizeof(inode_buf));
677         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
678                 return;
679 }
680
681 void do_freei(int argc, char *argv[])
682 {
683         ext2_ino_t inode;
684
685         if (common_inode_args_process(argc, argv, &inode,
686                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
687                 return;
688
689         if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
690                 com_err(argv[0], 0, "Warning: inode already clear");
691         ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
692         ext2fs_mark_ib_dirty(current_fs);
693 }
694
695 void do_seti(int argc, char *argv[])
696 {
697         ext2_ino_t inode;
698
699         if (common_inode_args_process(argc, argv, &inode,
700                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
701                 return;
702
703         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
704                 com_err(argv[0], 0, "Warning: inode already set");
705         ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
706         ext2fs_mark_ib_dirty(current_fs);
707 }
708
709 void do_testi(int argc, char *argv[])
710 {
711         ext2_ino_t inode;
712
713         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
714                 return;
715
716         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
717                 printf("Inode %u is marked in use\n", inode);
718         else
719                 printf("Inode %u is not in use\n", inode);
720 }
721
722 void do_freeb(int argc, char *argv[])
723 {
724         blk_t block;
725         int count = 1;
726
727         if (common_block_args_process(argc, argv, &block, &count))
728                 return;
729         if (check_fs_read_write(argv[0]))
730                 return;
731         while (count-- > 0) {
732                 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
733                         com_err(argv[0], 0, "Warning: block %u already clear",
734                                 block);
735                 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
736                 block++;
737         }
738         ext2fs_mark_bb_dirty(current_fs);
739 }
740
741 void do_setb(int argc, char *argv[])
742 {
743         blk_t block;
744         int count = 1;
745
746         if (common_block_args_process(argc, argv, &block, &count))
747                 return;
748         if (check_fs_read_write(argv[0]))
749                 return;
750         while (count-- > 0) {
751                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
752                         com_err(argv[0], 0, "Warning: block %u already set",
753                                 block);
754                 ext2fs_mark_block_bitmap(current_fs->block_map,block);
755                 block++;
756         }
757         ext2fs_mark_bb_dirty(current_fs);
758 }
759
760 void do_testb(int argc, char *argv[])
761 {
762         blk_t block;
763         int count = 1;
764
765         if (common_block_args_process(argc, argv, &block, &count))
766                 return;
767         while (count-- > 0) {
768                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
769                         printf("Block %u marked in use\n", block);
770                 else
771                         printf("Block %u not in use\n", block);
772                 block++;
773         }
774 }
775
776 static void modify_u8(char *com, const char *prompt,
777                       const char *format, __u8 *val)
778 {
779         char buf[200];
780         unsigned long v;
781         char *tmp;
782
783         sprintf(buf, format, *val);
784         printf("%30s    [%s] ", prompt, buf);
785         fgets(buf, sizeof(buf), stdin);
786         if (buf[strlen (buf) - 1] == '\n')
787                 buf[strlen (buf) - 1] = '\0';
788         if (!buf[0])
789                 return;
790         v = strtoul(buf, &tmp, 0);
791         if (*tmp)
792                 com_err(com, 0, "Bad value - %s", buf);
793         else
794                 *val = v;
795 }
796
797 static void modify_u16(char *com, const char *prompt,
798                        const char *format, __u16 *val)
799 {
800         char buf[200];
801         unsigned long v;
802         char *tmp;
803
804         sprintf(buf, format, *val);
805         printf("%30s    [%s] ", prompt, buf);
806         fgets(buf, sizeof(buf), stdin);
807         if (buf[strlen (buf) - 1] == '\n')
808                 buf[strlen (buf) - 1] = '\0';
809         if (!buf[0])
810                 return;
811         v = strtoul(buf, &tmp, 0);
812         if (*tmp)
813                 com_err(com, 0, "Bad value - %s", buf);
814         else
815                 *val = v;
816 }
817
818 static void modify_u32(char *com, const char *prompt,
819                        const char *format, __u32 *val)
820 {
821         char buf[200];
822         unsigned long v;
823         char *tmp;
824
825         sprintf(buf, format, *val);
826         printf("%30s    [%s] ", prompt, buf);
827         fgets(buf, sizeof(buf), stdin);
828         if (buf[strlen (buf) - 1] == '\n')
829                 buf[strlen (buf) - 1] = '\0';
830         if (!buf[0])
831                 return;
832         v = strtoul(buf, &tmp, 0);
833         if (*tmp)
834                 com_err(com, 0, "Bad value - %s", buf);
835         else
836                 *val = v;
837 }
838
839
840 void do_modify_inode(int argc, char *argv[])
841 {
842         struct ext2_inode inode;
843         ext2_ino_t      inode_num;
844         int             i;
845         unsigned char   *frag, *fsize;
846         char            buf[80];
847         int             os;
848         const char      *hex_format = "0x%x";
849         const char      *octal_format = "0%o";
850         const char      *decimal_format = "%d";
851         const char      *unsignedlong_format = "%lu";
852         
853         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
854                 return;
855
856         os = current_fs->super->s_creator_os;
857
858         if (debugfs_read_inode(inode_num, &inode, argv[1]))
859                 return;
860         
861         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
862         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
863         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
864         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
865         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
866         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
867         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
868         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
869         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
870         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
871         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
872         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
873 #if 0
874         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
875 #endif
876         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
877         if (LINUX_S_ISDIR(inode.i_mode))
878                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
879         else
880                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
881
882         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
883                 modify_u32(argv[0], "Translator Block",
884                             decimal_format, &inode.osd1.hurd1.h_i_translator);
885         
886         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
887         switch (os) {
888             case EXT2_OS_LINUX:
889                 frag = &inode.osd2.linux2.l_i_frag;
890                 fsize = &inode.osd2.linux2.l_i_fsize;
891                 break;
892             case EXT2_OS_HURD:
893                 frag = &inode.osd2.hurd2.h_i_frag;
894                 fsize = &inode.osd2.hurd2.h_i_fsize;
895                 break;
896             case EXT2_OS_MASIX:
897                 frag = &inode.osd2.masix2.m_i_frag;
898                 fsize = &inode.osd2.masix2.m_i_fsize;
899                 break;
900             default:
901                 frag = fsize = 0;
902         }
903         if (frag)
904                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
905         if (fsize)
906                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
907
908         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
909                 sprintf(buf, "Direct Block #%d", i);
910                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
911         }
912         modify_u32(argv[0], "Indirect Block", decimal_format,
913                     &inode.i_block[EXT2_IND_BLOCK]);    
914         modify_u32(argv[0], "Double Indirect Block", decimal_format,
915                     &inode.i_block[EXT2_DIND_BLOCK]);
916         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
917                     &inode.i_block[EXT2_TIND_BLOCK]);
918         if (debugfs_write_inode(inode_num, &inode, argv[1]))
919                 return;
920 }
921
922 void do_change_working_dir(int argc, char *argv[])
923 {
924         ext2_ino_t      inode;
925         int             retval;
926         
927         if (common_inode_args_process(argc, argv, &inode, 0))
928                 return;
929
930         retval = ext2fs_check_directory(current_fs, inode);
931         if (retval) {
932                 com_err(argv[1], retval, 0);
933                 return;
934         }
935         cwd = inode;
936         return;
937 }
938
939 void do_print_working_directory(int argc, char *argv[])
940 {
941         int     retval;
942         char    *pathname = NULL;
943         
944         if (common_args_process(argc, argv, 1, 1,
945                                 "print_working_directory", "", 0))
946                 return;
947
948         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
949         if (retval) {
950                 com_err(argv[0], retval,
951                         "while trying to get pathname of cwd");
952         }
953         printf("[pwd]   INODE: %6u  PATH: %s\n", cwd, pathname);
954         free(pathname);
955         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
956         if (retval) {
957                 com_err(argv[0], retval,
958                         "while trying to get pathname of root");
959         }
960         printf("[root]  INODE: %6u  PATH: %s\n", root, pathname);
961         free(pathname);
962         return;
963 }
964
965 /*
966  * Given a mode, return the ext2 file type
967  */
968 static int ext2_file_type(unsigned int mode)
969 {
970         if (LINUX_S_ISREG(mode))
971                 return EXT2_FT_REG_FILE;
972
973         if (LINUX_S_ISDIR(mode))
974                 return EXT2_FT_DIR;
975         
976         if (LINUX_S_ISCHR(mode))
977                 return EXT2_FT_CHRDEV;
978         
979         if (LINUX_S_ISBLK(mode))
980                 return EXT2_FT_BLKDEV;
981         
982         if (LINUX_S_ISLNK(mode))
983                 return EXT2_FT_SYMLINK;
984
985         if (LINUX_S_ISFIFO(mode))
986                 return EXT2_FT_FIFO;
987         
988         if (LINUX_S_ISSOCK(mode))
989                 return EXT2_FT_SOCK;
990         
991         return 0;
992 }
993
994 static void make_link(char *sourcename, char *destname)
995 {
996         ext2_ino_t      ino;
997         struct ext2_inode inode;
998         int             retval;
999         ext2_ino_t      dir;
1000         char            *dest, *cp, *basename;
1001
1002         /*
1003          * Get the source inode
1004          */
1005         ino = string_to_inode(sourcename);
1006         if (!ino)
1007                 return;
1008         basename = strrchr(sourcename, '/');
1009         if (basename)
1010                 basename++;
1011         else
1012                 basename = sourcename;
1013         /*
1014          * Figure out the destination.  First see if it exists and is
1015          * a directory.  
1016          */
1017         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1018                 dest = basename;
1019         else {
1020                 /*
1021                  * OK, it doesn't exist.  See if it is
1022                  * '<dir>/basename' or 'basename'
1023                  */
1024                 cp = strrchr(destname, '/');
1025                 if (cp) {
1026                         *cp = 0;
1027                         dir = string_to_inode(destname);
1028                         if (!dir)
1029                                 return;
1030                         dest = cp+1;
1031                 } else {
1032                         dir = cwd;
1033                         dest = destname;
1034                 }
1035         }
1036
1037         if (debugfs_read_inode(ino, &inode, sourcename))
1038                 return;
1039         
1040         retval = ext2fs_link(current_fs, dir, dest, ino, 
1041                              ext2_file_type(inode.i_mode));
1042         if (retval)
1043                 com_err("make_link", retval, 0);
1044         return;
1045 }
1046
1047
1048 void do_link(int argc, char *argv[])
1049 {
1050         if (common_args_process(argc, argv, 3, 3, "link",
1051                                 "<source file> <dest_name>", CHECK_FS_RW))
1052                 return;
1053
1054         make_link(argv[1], argv[2]);
1055 }
1056
1057 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1058                             int blockcnt EXT2FS_ATTR((unused)), 
1059                             void *private EXT2FS_ATTR((unused)))
1060 {
1061         blk_t   block;
1062
1063         block = *blocknr;
1064         ext2fs_block_alloc_stats(fs, block, +1);
1065         return 0;
1066 }
1067
1068 void do_undel(int argc, char *argv[])
1069 {
1070         ext2_ino_t      ino;
1071         struct ext2_inode inode;
1072
1073         if (common_args_process(argc, argv, 3, 3, "undelete",
1074                                 "<inode_num> <dest_name>",
1075                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1076                 return;
1077
1078         ino = string_to_inode(argv[1]);
1079         if (!ino)
1080                 return;
1081
1082         if (debugfs_read_inode(ino, &inode, argv[1]))
1083                 return;
1084
1085         if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
1086                 com_err(argv[1], 0, "Inode is not marked as deleted");
1087                 return;
1088         }
1089
1090         /*
1091          * XXX this function doesn't handle changing the links count on the
1092          * parent directory when undeleting a directory.  
1093          */
1094         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1095         inode.i_dtime = 0;
1096
1097         if (debugfs_write_inode(ino, &inode, argv[0]))
1098                 return;
1099
1100         ext2fs_block_iterate(current_fs, ino, 0, NULL,
1101                              mark_blocks_proc, NULL);
1102
1103         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1104
1105         make_link(argv[1], argv[2]);
1106 }
1107
1108 static void unlink_file_by_name(char *filename)
1109 {
1110         int             retval;
1111         ext2_ino_t      dir;
1112         char            *basename;
1113         
1114         basename = strrchr(filename, '/');
1115         if (basename) {
1116                 *basename++ = '\0';
1117                 dir = string_to_inode(filename);
1118                 if (!dir)
1119                         return;
1120         } else {
1121                 dir = cwd;
1122                 basename = filename;
1123         }
1124         retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
1125         if (retval)
1126                 com_err("unlink_file_by_name", retval, 0);
1127         return;
1128 }
1129
1130 void do_unlink(int argc, char *argv[])
1131 {
1132         if (common_args_process(argc, argv, 2, 2, "link",
1133                                 "<pathname>", CHECK_FS_RW))
1134                 return;
1135
1136         unlink_file_by_name(argv[1]);
1137 }
1138
1139 void do_find_free_block(int argc, char *argv[])
1140 {
1141         blk_t   free_blk, goal;
1142         int             count;
1143         errcode_t       retval;
1144         char            *tmp;
1145         
1146         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1147                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1148                 return;
1149         }
1150         if (check_fs_open(argv[0]))
1151                 return;
1152
1153         if (argc > 1) {
1154                 count = strtol(argv[1],&tmp,0);
1155                 if (*tmp) {
1156                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1157                         return;
1158                 }
1159         } else
1160                 count = 1;
1161
1162         if (argc > 2) {
1163                 goal = strtol(argv[2], &tmp, 0);
1164                 if (*tmp) {
1165                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1166                         return;
1167                 }
1168         }
1169         else
1170                 goal = current_fs->super->s_first_data_block;
1171
1172         printf("Free blocks found: ");
1173         free_blk = goal - 1;    
1174         while (count-- > 0) {
1175                 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
1176                                           &free_blk);
1177                 if (retval) {
1178                         com_err("ext2fs_new_block", retval, 0);
1179                         return;
1180                 } else
1181                         printf("%u ", free_blk);
1182         }
1183         printf("\n");
1184 }
1185
1186 void do_find_free_inode(int argc, char *argv[])
1187 {
1188         ext2_ino_t      free_inode, dir;
1189         int             mode;
1190         int             retval;
1191         char            *tmp;
1192         
1193         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1194                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1195                 return;
1196         }
1197         if (check_fs_open(argv[0]))
1198                 return;
1199
1200         if (argc > 1) {
1201                 dir = strtol(argv[1], &tmp, 0);
1202                 if (*tmp) {
1203                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1204                         return;
1205                 }
1206         }
1207         else
1208                 dir = root;
1209         if (argc > 2) {
1210                 mode = strtol(argv[2], &tmp, 0);
1211                 if (*tmp) {
1212                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1213                         return;
1214                 }
1215         } else
1216                 mode = 010755;
1217
1218         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1219         if (retval)
1220                 com_err("ext2fs_new_inode", retval, 0);
1221         else
1222                 printf("Free inode found: %u\n", free_inode);
1223 }
1224
1225 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1226 {
1227         ext2_file_t     e2_file;
1228         errcode_t       retval;
1229         int             got;
1230         unsigned int    written;
1231         char            buf[8192];
1232         char            *ptr;
1233
1234         retval = ext2fs_file_open(current_fs, newfile,
1235                                   EXT2_FILE_WRITE, &e2_file);
1236         if (retval)
1237                 return retval;
1238
1239         while (1) {
1240                 got = read(fd, buf, sizeof(buf));
1241                 if (got == 0)
1242                         break;
1243                 if (got < 0) {
1244                         retval = errno;
1245                         goto fail;
1246                 }
1247                 ptr = buf;
1248                 while (got > 0) {
1249                         retval = ext2fs_file_write(e2_file, ptr,
1250                                                    got, &written);
1251                         if (retval)
1252                                 goto fail;
1253
1254                         got -= written;
1255                         ptr += written;
1256                 }
1257         }
1258         retval = ext2fs_file_close(e2_file);
1259         return retval;
1260
1261 fail:
1262         (void) ext2fs_file_close(e2_file);
1263         return retval;
1264 }
1265
1266
1267 void do_write(int argc, char *argv[])
1268 {
1269         int             fd;
1270         struct stat     statbuf;
1271         ext2_ino_t      newfile;
1272         errcode_t       retval;
1273         struct ext2_inode inode;
1274
1275         if (common_args_process(argc, argv, 3, 3, "write",
1276                                 "<native file> <new file>", CHECK_FS_RW))
1277                 return;
1278
1279         fd = open(argv[1], O_RDONLY);
1280         if (fd < 0) {
1281                 com_err(argv[1], errno, 0);
1282                 return;
1283         }
1284         if (fstat(fd, &statbuf) < 0) {
1285                 com_err(argv[1], errno, 0);
1286                 close(fd);
1287                 return;
1288         }
1289
1290         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1291         if (retval == 0) {
1292                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1293                 close(fd);
1294                 return;
1295         }
1296
1297         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1298         if (retval) {
1299                 com_err(argv[0], retval, 0);
1300                 close(fd);
1301                 return;
1302         }
1303         printf("Allocated inode: %u\n", newfile);
1304         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1305                              EXT2_FT_REG_FILE);
1306         if (retval == EXT2_ET_DIR_NO_SPACE) {
1307                 retval = ext2fs_expand_dir(current_fs, cwd);
1308                 if (retval) {
1309                         com_err(argv[0], retval, "while expanding directory");
1310                         return;
1311                 }
1312                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1313                                      EXT2_FT_REG_FILE);
1314         }
1315         if (retval) {
1316                 com_err(argv[2], retval, 0);
1317                 close(fd);
1318                 return;
1319         }
1320         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1321                 com_err(argv[0], 0, "Warning: inode already set");
1322         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1323         memset(&inode, 0, sizeof(inode));
1324         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1325         inode.i_atime = inode.i_ctime = inode.i_mtime = 
1326                 current_fs->now ? current_fs->now : time(0);
1327         inode.i_links_count = 1;
1328         inode.i_size = statbuf.st_size;
1329         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1330                 close(fd);
1331                 return;
1332         }
1333         if (LINUX_S_ISREG(inode.i_mode)) {
1334                 retval = copy_file(fd, newfile);
1335                 if (retval)
1336                         com_err("copy_file", retval, 0);
1337         }
1338         close(fd);
1339 }
1340
1341 void do_mknod(int argc, char *argv[])
1342 {
1343         unsigned long   mode, major, minor;
1344         ext2_ino_t      newfile;
1345         errcode_t       retval;
1346         struct ext2_inode inode;
1347         int             filetype, nr;
1348
1349         if (check_fs_open(argv[0]))
1350                 return;
1351         if (argc < 3 || argv[2][1]) {
1352         usage:
1353                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1354                 return;
1355         }
1356         mode = minor = major = 0;
1357         switch (argv[2][0]) {
1358                 case 'p':
1359                         mode = LINUX_S_IFIFO;
1360                         filetype = EXT2_FT_FIFO;
1361                         nr = 3;
1362                         break;
1363                 case 'c':
1364                         mode = LINUX_S_IFCHR;
1365                         filetype = EXT2_FT_CHRDEV;
1366                         nr = 5;
1367                         break;
1368                 case 'b':
1369                         mode = LINUX_S_IFBLK;
1370                         filetype = EXT2_FT_BLKDEV;
1371                         nr = 5;
1372                         break;
1373                 default:
1374                         filetype = 0;
1375                         nr = 0;
1376         }
1377         if (nr == 5) {
1378                 major = strtoul(argv[3], argv+3, 0);
1379                 minor = strtoul(argv[4], argv+4, 0);
1380                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1381                         nr = 0;
1382         }
1383         if (argc != nr)
1384                 goto usage;
1385         if (check_fs_read_write(argv[0]))
1386                 return;
1387         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1388         if (retval) {
1389                 com_err(argv[0], retval, 0);
1390                 return;
1391         }
1392         printf("Allocated inode: %u\n", newfile);
1393         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1394         if (retval == EXT2_ET_DIR_NO_SPACE) {
1395                 retval = ext2fs_expand_dir(current_fs, cwd);
1396                 if (retval) {
1397                         com_err(argv[0], retval, "while expanding directory");
1398                         return;
1399                 }
1400                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1401                                      filetype);
1402         }
1403         if (retval) {
1404                 com_err(argv[1], retval, 0);
1405                 return;
1406         }
1407         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1408                 com_err(argv[0], 0, "Warning: inode already set");
1409         ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1410         ext2fs_mark_ib_dirty(current_fs);
1411         memset(&inode, 0, sizeof(inode));
1412         inode.i_mode = mode;
1413         inode.i_atime = inode.i_ctime = inode.i_mtime = 
1414                 current_fs->now ? current_fs->now : time(0);
1415         if ((major < 256) && (minor < 256)) {
1416                 inode.i_block[0] = major*256+minor;
1417                 inode.i_block[1] = 0;
1418         } else {
1419                 inode.i_block[0] = 0;
1420                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1421         }
1422         inode.i_links_count = 1;
1423         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1424                 return;
1425 }
1426
1427 void do_mkdir(int argc, char *argv[])
1428 {
1429         char    *cp;
1430         ext2_ino_t      parent;
1431         char    *name;
1432         errcode_t retval;
1433
1434         if (common_args_process(argc, argv, 2, 2, "mkdir",
1435                                 "<filename>", CHECK_FS_RW))
1436                 return;
1437
1438         cp = strrchr(argv[1], '/');
1439         if (cp) {
1440                 *cp = 0;
1441                 parent = string_to_inode(argv[1]);
1442                 if (!parent) {
1443                         com_err(argv[1], ENOENT, 0);
1444                         return;
1445                 }
1446                 name = cp+1;
1447         } else {
1448                 parent = cwd;
1449                 name = argv[1];
1450         }
1451
1452 try_again:
1453         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1454         if (retval == EXT2_ET_DIR_NO_SPACE) {
1455                 retval = ext2fs_expand_dir(current_fs, parent);
1456                 if (retval) {
1457                         com_err("argv[0]", retval, "while expanding directory");
1458                         return;
1459                 }
1460                 goto try_again;
1461         }
1462         if (retval) {
1463                 com_err("ext2fs_mkdir", retval, 0);
1464                 return;
1465         }
1466
1467 }
1468
1469 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1470                                int blockcnt EXT2FS_ATTR((unused)), 
1471                                void *private EXT2FS_ATTR((unused)))
1472 {
1473         blk_t   block;
1474
1475         block = *blocknr;
1476         ext2fs_block_alloc_stats(fs, block, -1);
1477         return 0;
1478 }
1479
1480 static void kill_file_by_inode(ext2_ino_t inode)
1481 {
1482         struct ext2_inode inode_buf;
1483
1484         if (debugfs_read_inode(inode, &inode_buf, 0))
1485                 return;
1486         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1487         if (debugfs_write_inode(inode, &inode_buf, 0))
1488                 return;
1489         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1490                 return;
1491
1492         ext2fs_block_iterate(current_fs, inode, 0, NULL,
1493                              release_blocks_proc, NULL);
1494         printf("\n");
1495         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1496                                   LINUX_S_ISDIR(inode_buf.i_mode));
1497 }
1498
1499
1500 void do_kill_file(int argc, char *argv[])
1501 {
1502         ext2_ino_t inode_num;
1503
1504         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1505                 return;
1506
1507         kill_file_by_inode(inode_num);
1508 }
1509
1510 void do_rm(int argc, char *argv[])
1511 {
1512         int retval;
1513         ext2_ino_t inode_num;
1514         struct ext2_inode inode;
1515
1516         if (common_args_process(argc, argv, 2, 2, "rm",
1517                                 "<filename>", CHECK_FS_RW))
1518                 return;
1519
1520         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1521         if (retval) {
1522                 com_err(argv[0], retval, "while trying to resolve filename");
1523                 return;
1524         }
1525
1526         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1527                 return;
1528
1529         if (LINUX_S_ISDIR(inode.i_mode)) {
1530                 com_err(argv[0], 0, "file is a directory");
1531                 return;
1532         }
1533
1534         --inode.i_links_count;
1535         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1536                 return;
1537
1538         unlink_file_by_name(argv[1]);
1539         if (inode.i_links_count == 0)
1540                 kill_file_by_inode(inode_num);
1541 }
1542
1543 struct rd_struct {
1544         ext2_ino_t      parent;
1545         int             empty;
1546 };
1547
1548 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1549                       int       entry EXT2FS_ATTR((unused)),
1550                       struct ext2_dir_entry *dirent,
1551                       int       offset EXT2FS_ATTR((unused)),
1552                       int       blocksize EXT2FS_ATTR((unused)),
1553                       char      *buf EXT2FS_ATTR((unused)),
1554                       void      *private)
1555 {
1556         struct rd_struct *rds = (struct rd_struct *) private;
1557
1558         if (dirent->inode == 0)
1559                 return 0;
1560         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1561                 return 0;
1562         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1563             (dirent->name[1] == '.')) {
1564                 rds->parent = dirent->inode;
1565                 return 0;
1566         }
1567         rds->empty = 0;
1568         return 0;
1569 }
1570         
1571 void do_rmdir(int argc, char *argv[])
1572 {
1573         int retval;
1574         ext2_ino_t inode_num;
1575         struct ext2_inode inode;
1576         struct rd_struct rds;
1577
1578         if (common_args_process(argc, argv, 2, 2, "rmdir",
1579                                 "<filename>", CHECK_FS_RW))
1580                 return;
1581
1582         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1583         if (retval) {
1584                 com_err(argv[0], retval, "while trying to resolve filename");
1585                 return;
1586         }
1587
1588         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1589                 return;
1590
1591         if (!LINUX_S_ISDIR(inode.i_mode)) {
1592                 com_err(argv[0], 0, "file is not a directory");
1593                 return;
1594         }
1595
1596         rds.parent = 0;
1597         rds.empty = 1;
1598
1599         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1600                                     0, rmdir_proc, &rds);
1601         if (retval) {
1602                 com_err(argv[0], retval, "while iterating over directory");
1603                 return;
1604         }
1605         if (rds.empty == 0) {
1606                 com_err(argv[0], 0, "directory not empty");
1607                 return;
1608         }
1609
1610         inode.i_links_count = 0;
1611         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1612                 return;
1613
1614         unlink_file_by_name(argv[1]);
1615         kill_file_by_inode(inode_num);
1616
1617         if (rds.parent) {
1618                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1619                         return;
1620                 if (inode.i_links_count > 1)
1621                         inode.i_links_count--;
1622                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1623                         return;
1624         }
1625 }
1626
1627 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 
1628                             char *argv[] EXT2FS_ATTR((unused)))
1629 {
1630         FILE *out = stdout;
1631
1632         if (current_fs)
1633                 fprintf(out, "Open mode: read-%s\n",
1634                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1635         fprintf(out, "Filesystem in use: %s\n",
1636                 current_fs ? current_fs->device_name : "--none--");
1637 }
1638
1639 void do_expand_dir(int argc, char *argv[])
1640 {
1641         ext2_ino_t inode;
1642         int retval;
1643
1644         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1645                 return;
1646
1647         retval = ext2fs_expand_dir(current_fs, inode);
1648         if (retval)
1649                 com_err("ext2fs_expand_dir", retval, 0);
1650         return;
1651 }
1652
1653 void do_features(int argc, char *argv[])
1654 {
1655         int     i;
1656         
1657         if (check_fs_open(argv[0]))
1658                 return;
1659
1660         if ((argc != 1) && check_fs_read_write(argv[0]))
1661                 return;
1662         for (i=1; i < argc; i++) {
1663                 if (e2p_edit_feature(argv[i],
1664                                      &current_fs->super->s_feature_compat, 0))
1665                         com_err(argv[0], 0, "Unknown feature: %s\n",
1666                                 argv[i]);
1667                 else
1668                         ext2fs_mark_super_dirty(current_fs);
1669         }
1670         print_features(current_fs->super, stdout);
1671 }
1672
1673 void do_bmap(int argc, char *argv[])
1674 {
1675         ext2_ino_t      ino;
1676         blk_t           blk, pblk;
1677         int             err;
1678         errcode_t       errcode;
1679         
1680         if (common_args_process(argc, argv, 3, 3, argv[0],
1681                                 "<file> logical_blk", 0))
1682                 return;
1683
1684         ino = string_to_inode(argv[1]);
1685         if (!ino)
1686                 return;
1687         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1688
1689         errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1690         if (errcode) {
1691                 com_err("argv[0]", errcode,
1692                         "while mapping logical block %u\n", blk);
1693                 return;
1694         }
1695         printf("%u\n", pblk);
1696 }
1697
1698 void do_imap(int argc, char *argv[])
1699 {
1700         ext2_ino_t      ino;
1701         unsigned long   group, block, block_nr, offset;
1702
1703         if (common_args_process(argc, argv, 2, 2, argv[0],
1704                                 "<file>", 0))
1705                 return;
1706         ino = string_to_inode(argv[1]);
1707         if (!ino)
1708                 return;
1709
1710         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1711         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1712                 EXT2_INODE_SIZE(current_fs->super);
1713         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1714         if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
1715                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1716                         group);
1717                 return;
1718         }
1719         block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table + 
1720                 block;
1721         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1722
1723         printf("Inode %d is part of block group %lu\n"
1724                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1725                block_nr, offset);
1726
1727 }
1728
1729 void do_set_current_time(int argc, char *argv[])
1730 {
1731         time_t now;
1732
1733         if (common_args_process(argc, argv, 2, 2, argv[0],
1734                                 "<time>", 0))
1735                 return;
1736
1737         now = string_to_time(argv[1]);
1738         if (now == ((time_t) -1)) {
1739                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1740                         argv[1]);
1741                 return;
1742
1743         } else {
1744                 printf("Setting current time to %s\n", time_to_string(now));
1745                 current_fs->now = now;
1746         }
1747 }
1748
1749 static int source_file(const char *cmd_file, int sci_idx)
1750 {
1751         FILE            *f;
1752         char            buf[256];
1753         char            *cp;
1754         int             exit_status = 0;
1755         int             retval;
1756
1757         if (strcmp(cmd_file, "-") == 0)
1758                 f = stdin;
1759         else {
1760                 f = fopen(cmd_file, "r");
1761                 if (!f) {
1762                         perror(cmd_file);
1763                         exit(1);
1764                 }
1765         }
1766         setbuf(stdout, NULL);
1767         setbuf(stderr, NULL);
1768         while (!feof(f)) {
1769                 if (fgets(buf, sizeof(buf), f) == NULL)
1770                         break;
1771                 cp = strchr(buf, '\n');
1772                 if (cp)
1773                         *cp = 0;
1774                 cp = strchr(buf, '\r');
1775                 if (cp)
1776                         *cp = 0;
1777                 printf("debugfs: %s\n", buf);
1778                 retval = ss_execute_line(sci_idx, buf);
1779                 if (retval) {
1780                         ss_perror(sci_idx, retval, buf);
1781                         exit_status++;
1782                 }
1783         }
1784         return exit_status;
1785 }
1786
1787 int main(int argc, char **argv)
1788 {
1789         int             retval;
1790         int             sci_idx;
1791         const char      *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1792         int             c;
1793         int             open_flags = 0;
1794         char            *request = 0;
1795         int             exit_status = 0;
1796         char            *cmd_file = 0;
1797         blk_t           superblock = 0;
1798         blk_t           blocksize = 0;
1799         int             catastrophic = 0;
1800         char            *data_filename = 0;
1801         
1802         initialize_ext2_error_table();
1803         fprintf (stderr, "debugfs %s (%s)\n", E2FSPROGS_VERSION,
1804                  E2FSPROGS_DATE);
1805
1806         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
1807                 switch (c) {
1808                 case 'R':
1809                         request = optarg;
1810                         break;
1811                 case 'f':
1812                         cmd_file = optarg;
1813                         break;
1814                 case 'd':
1815                         data_filename = optarg;
1816                         break;
1817                 case 'i':
1818                         open_flags |= EXT2_FLAG_IMAGE_FILE;
1819                         break;
1820                 case 'w':
1821                         open_flags |= EXT2_FLAG_RW;
1822                         break;
1823                 case 'b':
1824                         blocksize = parse_ulong(optarg, argv[0], 
1825                                                 "block size", 0);
1826                         break;
1827                 case 's':
1828                         superblock = parse_ulong(optarg, argv[0], 
1829                                                  "superblock number", 0);
1830                         break;
1831                 case 'c':
1832                         catastrophic = 1;
1833                         break;
1834                 case 'V':
1835                         /* Print version number and exit */
1836                         fprintf(stderr, "\tUsing %s\n",
1837                                 error_message(EXT2_ET_BASE));
1838                         exit(0);
1839                 default:
1840                         com_err(argv[0], 0, usage);
1841                         return 1;
1842                 }
1843         }
1844         if (optind < argc)
1845                 open_filesystem(argv[optind], open_flags,
1846                                 superblock, blocksize, catastrophic,
1847                                 data_filename);
1848         
1849         sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1850                                        &debug_cmds, &retval);
1851         if (retval) {
1852                 ss_perror(sci_idx, retval, "creating invocation");
1853                 exit(1);
1854         }
1855         ss_get_readline(sci_idx);
1856
1857         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1858         if (retval) {
1859                 ss_perror(sci_idx, retval, "adding standard requests");
1860                 exit (1);
1861         }
1862         if (request) {
1863                 retval = 0;
1864                 retval = ss_execute_line(sci_idx, request);
1865                 if (retval) {
1866                         ss_perror(sci_idx, retval, request);
1867                         exit_status++;
1868                 }
1869         } else if (cmd_file) {
1870                 exit_status = source_file(cmd_file, sci_idx);
1871         } else {
1872                 ss_listen(sci_idx);
1873         }
1874
1875         if (current_fs)
1876                 close_filesystem();
1877         
1878         return exit_status;
1879 }