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Fix format statements to make e2fsprogs programs 32-bit clean
[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 void do_show_super_stats(int argc, char *argv[])
270 {
271         dgrp_t  i;
272         FILE    *out;
273         struct ext2_group_desc *gdp;
274         int     c, header_only = 0;
275         int     numdirs = 0;
276
277         reset_getopt();
278         while ((c = getopt (argc, argv, "h")) != EOF) {
279                 switch (c) {
280                 case 'h':
281                         header_only++;
282                         break;
283                 default:
284                         goto print_usage;
285                 }
286         }
287         if (optind != argc) {
288                 goto print_usage;
289         }
290         if (check_fs_open(argv[0]))
291                 return;
292         out = open_pager();
293
294         list_super2(current_fs->super, out);
295         for (i=0; i < current_fs->group_desc_count; i++)
296                 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
297         fprintf(out, "Directories:              %d\n", numdirs);
298         
299         if (header_only) {
300                 close_pager(out);
301                 return;
302         }
303         
304         gdp = &current_fs->group_desc[0];
305         for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
306                 fprintf(out, " Group %2d: block bitmap at %u, "
307                         "inode bitmap at %u, "
308                         "inode table at %u\n"
309                         "           %d free %s, "
310                         "%d free %s, "
311                         "%d used %s\n",
312                         i, gdp->bg_block_bitmap,
313                         gdp->bg_inode_bitmap, gdp->bg_inode_table,
314                         gdp->bg_free_blocks_count,
315                         gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
316                         gdp->bg_free_inodes_count,
317                         gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
318                         gdp->bg_used_dirs_count,
319                         gdp->bg_used_dirs_count != 1 ? "directories"
320                                 : "directory");
321         close_pager(out);
322         return;
323 print_usage:
324         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
325 }
326
327 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 
328                       char **argv EXT2FS_ATTR((unused)))
329 {
330         if (check_fs_open(argv[0]))
331                 return;
332         if (check_fs_read_write(argv[0]))
333                 return;
334
335         if (argv[1] && !strcmp(argv[1], "-clean"))
336                 current_fs->super->s_state |= EXT2_VALID_FS;
337         else
338                 current_fs->super->s_state &= ~EXT2_VALID_FS;
339         ext2fs_mark_super_dirty(current_fs);
340 }
341
342 struct list_blocks_struct {
343         FILE            *f;
344         e2_blkcnt_t     total;
345         blk_t           first_block, last_block;
346         e2_blkcnt_t     first_bcnt, last_bcnt;
347         e2_blkcnt_t     first;
348 };
349
350 static void finish_range(struct list_blocks_struct *lb)
351 {
352         if (lb->first_block == 0)
353                 return;
354         if (lb->first)
355                 lb->first = 0;
356         else
357                 fprintf(lb->f, ", ");
358         if (lb->first_block == lb->last_block)
359                 fprintf(lb->f, "(%lld):%u", lb->first_bcnt, lb->first_block);
360         else
361                 fprintf(lb->f, "(%lld-%lld):%u-%u", lb->first_bcnt,
362                         lb->last_bcnt, lb->first_block, lb->last_block);
363         lb->first_block = 0;
364 }
365
366 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 
367                             blk_t *blocknr, e2_blkcnt_t blockcnt, 
368                             blk_t ref_block EXT2FS_ATTR((unused)),
369                             int ref_offset EXT2FS_ATTR((unused)), 
370                             void *private)
371 {
372         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
373
374         lb->total++;
375         if (blockcnt >= 0) {
376                 /*
377                  * See if we can add on to the existing range (if it exists)
378                  */
379                 if (lb->first_block &&
380                     (lb->last_block+1 == *blocknr) &&
381                     (lb->last_bcnt+1 == blockcnt)) {
382                         lb->last_block = *blocknr;
383                         lb->last_bcnt = blockcnt;
384                         return 0;
385                 }
386                 /*
387                  * Start a new range.
388                  */
389                 finish_range(lb);
390                 lb->first_block = lb->last_block = *blocknr;
391                 lb->first_bcnt = lb->last_bcnt = blockcnt;
392                 return 0;
393         }
394         /*
395          * Not a normal block.  Always force a new range.
396          */
397         finish_range(lb);
398         if (lb->first)
399                 lb->first = 0;
400         else
401                 fprintf(lb->f, ", ");
402         if (blockcnt == -1)
403                 fprintf(lb->f, "(IND):%u", *blocknr);
404         else if (blockcnt == -2)
405                 fprintf(lb->f, "(DIND):%u", *blocknr);
406         else if (blockcnt == -3)
407                 fprintf(lb->f, "(TIND):%u", *blocknr);
408         return 0;
409 }
410
411 static void dump_xattr_string(FILE *out, const char *str, int len)
412 {
413         int printable = 1;
414         int i;
415         
416         /* check is string printable? */
417         for (i = 0; i < len; i++)
418                 if (!isprint(str[i])) {
419                         printable = 0;
420                         break;
421                 }
422
423         for (i = 0; i < len; i++)
424                 if (printable)
425                         fprintf(out, "%c", str[i]);
426                 else
427                         fprintf(out, "%02x ", str[i]);
428 }
429
430 static void internal_dump_inode_extra(FILE *out, const char *prefix,
431                                       ext2_ino_t inode_num, 
432                                       struct ext2_inode_large *inode)
433 {
434         struct ext2_ext_attr_entry *entry;
435         __u32 *magic;
436         char *start, *end;
437         unsigned int storage_size;
438
439         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
440         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
441                         EXT2_GOOD_OLD_INODE_SIZE) {
442                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
443                                 inode->i_extra_isize);
444                 return;
445         }
446         storage_size = EXT2_INODE_SIZE(current_fs->super) -
447                         EXT2_GOOD_OLD_INODE_SIZE -
448                         inode->i_extra_isize;
449         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
450                         inode->i_extra_isize);
451         if (*magic == EXT2_EXT_ATTR_MAGIC) {
452                 fprintf(out, "Extended attributes stored in inode body: \n");
453                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
454                 start = (char *) magic + sizeof(__u32);
455                 entry = (struct ext2_ext_attr_entry *) start;
456                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
457                         struct ext2_ext_attr_entry *next =
458                                 EXT2_EXT_ATTR_NEXT(entry);
459                         if (entry->e_value_size > storage_size ||
460                                         (char *) next >= end) {
461                                 fprintf(out, "invalid EA entry in inode\n");
462                                 return;
463                         }
464                         fprintf(out, "  ");
465                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 
466                                           entry->e_name_len);
467                         fprintf(out, " = \"");
468                         dump_xattr_string(out, start + entry->e_value_offs,
469                                                 entry->e_value_size);
470                         fprintf(out, "\" (%u)\n", entry->e_value_size);
471                         entry = next;
472                 }
473         }
474 }
475
476 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
477 {
478         struct list_blocks_struct lb;
479
480         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
481         lb.total = 0;
482         lb.first_block = 0;
483         lb.f = f;
484         lb.first = 1;
485         ext2fs_block_iterate2(current_fs, inode, 0, NULL,
486                              list_blocks_proc, (void *)&lb);
487         finish_range(&lb);
488         if (lb.total)
489                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, lb.total);
490         fprintf(f,"\n");
491 }
492
493
494 void internal_dump_inode(FILE *out, const char *prefix,
495                          ext2_ino_t inode_num, struct ext2_inode *inode,
496                          int do_dump_blocks)
497 {
498         const char *i_type;
499         char frag, fsize;
500         int os = current_fs->super->s_creator_os;
501         
502         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
503         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
504         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
505         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
506         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
507         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
508         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
509         else i_type = "bad type";
510         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
511         fprintf(out, "%sMode:  %04o   Flags: 0x%x   Generation: %u\n",
512                 prefix, 
513                 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
514         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
515                 prefix, inode->i_uid, inode->i_gid);
516         if (LINUX_S_ISREG(inode->i_mode)) {
517                 __u64 i_size = (inode->i_size |
518                                 ((unsigned long long)inode->i_size_high << 32));
519
520                 fprintf(out, "%lld\n", i_size);
521         } else
522                 fprintf(out, "%d\n", inode->i_size);
523         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
524                 fprintf(out,
525                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
526                         prefix,
527                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
528                         inode->osd1.hurd1.h_i_translator);
529         else
530                 fprintf(out, "%sFile ACL: %d    Directory ACL: %d\n",
531                         prefix,
532                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
533         fprintf(out, "%sLinks: %d   Blockcount: %u\n",
534                 prefix, inode->i_links_count, inode->i_blocks);
535         switch (os) {
536             case EXT2_OS_LINUX:
537                 frag = inode->osd2.linux2.l_i_frag;
538                 fsize = inode->osd2.linux2.l_i_fsize;
539                 break;
540             case EXT2_OS_HURD:
541                 frag = inode->osd2.hurd2.h_i_frag;
542                 fsize = inode->osd2.hurd2.h_i_fsize;
543                 break;
544             case EXT2_OS_MASIX:
545                 frag = inode->osd2.masix2.m_i_frag;
546                 fsize = inode->osd2.masix2.m_i_fsize;
547                 break;
548             default:
549                 frag = fsize = 0;
550         }
551         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
552                 prefix, inode->i_faddr, frag, fsize);
553         fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
554                 time_to_string(inode->i_ctime));
555         fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
556                 time_to_string(inode->i_atime));
557         fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
558                 time_to_string(inode->i_mtime));
559         if (inode->i_dtime) 
560           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
561                   time_to_string(inode->i_dtime));
562         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
563                 internal_dump_inode_extra(out, prefix, inode_num,
564                                           (struct ext2_inode_large *) inode);
565         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
566                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
567                         (int) inode->i_size, (char *)inode->i_block);
568         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
569                 int major, minor;
570                 const char *devnote;
571
572                 if (inode->i_block[0]) {
573                         major = (inode->i_block[0] >> 8) & 255;
574                         minor = inode->i_block[0] & 255;
575                         devnote = "";
576                 } else {
577                         major = (inode->i_block[1] & 0xfff00) >> 8;
578                         minor = ((inode->i_block[1] & 0xff) | 
579                                  ((inode->i_block[1] >> 12) & 0xfff00));
580                         devnote = "(New-style) ";
581                 }
582                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 
583                         devnote, major, minor, major, minor);
584         }
585         else if (do_dump_blocks)
586                 dump_blocks(out, prefix, inode_num);
587 }
588
589 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
590 {
591         FILE    *out;
592         
593         out = open_pager();
594         internal_dump_inode(out, "", inode_num, inode, 1);
595         close_pager(out);
596 }
597
598 void do_stat(int argc, char *argv[])
599 {
600         ext2_ino_t      inode;
601         struct ext2_inode * inode_buf;
602
603         if (check_fs_open(argv[0]))
604                 return;
605
606         inode_buf = (struct ext2_inode *)
607                         malloc(EXT2_INODE_SIZE(current_fs->super));
608         if (!inode_buf) {
609                 fprintf(stderr, "do_stat: can't allocate buffer\n");
610                 return;
611         }
612
613         if (common_inode_args_process(argc, argv, &inode, 0)) {
614                 free(inode_buf);
615                 return;
616         }
617
618         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
619                                         EXT2_INODE_SIZE(current_fs->super))) {
620                 free(inode_buf);
621                 return;
622         }
623
624         dump_inode(inode, inode_buf);
625         free(inode_buf);
626         return;
627 }
628
629 void do_chroot(int argc, char *argv[])
630 {
631         ext2_ino_t inode;
632         int retval;
633
634         if (common_inode_args_process(argc, argv, &inode, 0))
635                 return;
636
637         retval = ext2fs_check_directory(current_fs, inode);
638         if (retval)  {
639                 com_err(argv[1], retval, 0);
640                 return;
641         }
642         root = inode;
643 }
644
645 void do_clri(int argc, char *argv[])
646 {
647         ext2_ino_t inode;
648         struct ext2_inode inode_buf;
649
650         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
651                 return;
652
653         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
654                 return;
655         memset(&inode_buf, 0, sizeof(inode_buf));
656         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
657                 return;
658 }
659
660 void do_freei(int argc, char *argv[])
661 {
662         ext2_ino_t inode;
663
664         if (common_inode_args_process(argc, argv, &inode,
665                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
666                 return;
667
668         if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
669                 com_err(argv[0], 0, "Warning: inode already clear");
670         ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
671         ext2fs_mark_ib_dirty(current_fs);
672 }
673
674 void do_seti(int argc, char *argv[])
675 {
676         ext2_ino_t inode;
677
678         if (common_inode_args_process(argc, argv, &inode,
679                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
680                 return;
681
682         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
683                 com_err(argv[0], 0, "Warning: inode already set");
684         ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
685         ext2fs_mark_ib_dirty(current_fs);
686 }
687
688 void do_testi(int argc, char *argv[])
689 {
690         ext2_ino_t inode;
691
692         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
693                 return;
694
695         if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
696                 printf("Inode %u is marked in use\n", inode);
697         else
698                 printf("Inode %u is not in use\n", inode);
699 }
700
701 void do_freeb(int argc, char *argv[])
702 {
703         blk_t block;
704         int count = 1;
705
706         if (common_block_args_process(argc, argv, &block, &count))
707                 return;
708         if (check_fs_read_write(argv[0]))
709                 return;
710         while (count-- > 0) {
711                 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
712                         com_err(argv[0], 0, "Warning: block %u already clear",
713                                 block);
714                 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
715                 block++;
716         }
717         ext2fs_mark_bb_dirty(current_fs);
718 }
719
720 void do_setb(int argc, char *argv[])
721 {
722         blk_t block;
723         int count = 1;
724
725         if (common_block_args_process(argc, argv, &block, &count))
726                 return;
727         if (check_fs_read_write(argv[0]))
728                 return;
729         while (count-- > 0) {
730                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
731                         com_err(argv[0], 0, "Warning: block %u already set",
732                                 block);
733                 ext2fs_mark_block_bitmap(current_fs->block_map,block);
734                 block++;
735         }
736         ext2fs_mark_bb_dirty(current_fs);
737 }
738
739 void do_testb(int argc, char *argv[])
740 {
741         blk_t block;
742         int count = 1;
743
744         if (common_block_args_process(argc, argv, &block, &count))
745                 return;
746         while (count-- > 0) {
747                 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
748                         printf("Block %u marked in use\n", block);
749                 else
750                         printf("Block %u not in use\n", block);
751                 block++;
752         }
753 }
754
755 static void modify_u8(char *com, const char *prompt,
756                       const char *format, __u8 *val)
757 {
758         char buf[200];
759         unsigned long v;
760         char *tmp;
761
762         sprintf(buf, format, *val);
763         printf("%30s    [%s] ", prompt, buf);
764         fgets(buf, sizeof(buf), stdin);
765         if (buf[strlen (buf) - 1] == '\n')
766                 buf[strlen (buf) - 1] = '\0';
767         if (!buf[0])
768                 return;
769         v = strtoul(buf, &tmp, 0);
770         if (*tmp)
771                 com_err(com, 0, "Bad value - %s", buf);
772         else
773                 *val = v;
774 }
775
776 static void modify_u16(char *com, const char *prompt,
777                        const char *format, __u16 *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_u32(char *com, const char *prompt,
798                        const char *format, __u32 *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
819 void do_modify_inode(int argc, char *argv[])
820 {
821         struct ext2_inode inode;
822         ext2_ino_t      inode_num;
823         int             i;
824         unsigned char   *frag, *fsize;
825         char            buf[80];
826         int             os;
827         const char      *hex_format = "0x%x";
828         const char      *octal_format = "0%o";
829         const char      *decimal_format = "%d";
830         const char      *unsignedlong_format = "%lu";
831         
832         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
833                 return;
834
835         os = current_fs->super->s_creator_os;
836
837         if (debugfs_read_inode(inode_num, &inode, argv[1]))
838                 return;
839         
840         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
841         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
842         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
843         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
844         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
845         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
846         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
847         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
848         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
849         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
850         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
851         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
852 #if 0
853         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
854 #endif
855         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
856         if (LINUX_S_ISDIR(inode.i_mode))
857                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
858         else
859                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
860
861         if (current_fs->super->s_creator_os == EXT2_OS_HURD)
862                 modify_u32(argv[0], "Translator Block",
863                             decimal_format, &inode.osd1.hurd1.h_i_translator);
864         
865         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
866         switch (os) {
867             case EXT2_OS_LINUX:
868                 frag = &inode.osd2.linux2.l_i_frag;
869                 fsize = &inode.osd2.linux2.l_i_fsize;
870                 break;
871             case EXT2_OS_HURD:
872                 frag = &inode.osd2.hurd2.h_i_frag;
873                 fsize = &inode.osd2.hurd2.h_i_fsize;
874                 break;
875             case EXT2_OS_MASIX:
876                 frag = &inode.osd2.masix2.m_i_frag;
877                 fsize = &inode.osd2.masix2.m_i_fsize;
878                 break;
879             default:
880                 frag = fsize = 0;
881         }
882         if (frag)
883                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
884         if (fsize)
885                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
886
887         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
888                 sprintf(buf, "Direct Block #%d", i);
889                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
890         }
891         modify_u32(argv[0], "Indirect Block", decimal_format,
892                     &inode.i_block[EXT2_IND_BLOCK]);    
893         modify_u32(argv[0], "Double Indirect Block", decimal_format,
894                     &inode.i_block[EXT2_DIND_BLOCK]);
895         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
896                     &inode.i_block[EXT2_TIND_BLOCK]);
897         if (debugfs_write_inode(inode_num, &inode, argv[1]))
898                 return;
899 }
900
901 void do_change_working_dir(int argc, char *argv[])
902 {
903         ext2_ino_t      inode;
904         int             retval;
905         
906         if (common_inode_args_process(argc, argv, &inode, 0))
907                 return;
908
909         retval = ext2fs_check_directory(current_fs, inode);
910         if (retval) {
911                 com_err(argv[1], retval, 0);
912                 return;
913         }
914         cwd = inode;
915         return;
916 }
917
918 void do_print_working_directory(int argc, char *argv[])
919 {
920         int     retval;
921         char    *pathname = NULL;
922         
923         if (common_args_process(argc, argv, 1, 1,
924                                 "print_working_directory", "", 0))
925                 return;
926
927         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
928         if (retval) {
929                 com_err(argv[0], retval,
930                         "while trying to get pathname of cwd");
931         }
932         printf("[pwd]   INODE: %6u  PATH: %s\n", cwd, pathname);
933         free(pathname);
934         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
935         if (retval) {
936                 com_err(argv[0], retval,
937                         "while trying to get pathname of root");
938         }
939         printf("[root]  INODE: %6u  PATH: %s\n", root, pathname);
940         free(pathname);
941         return;
942 }
943
944 /*
945  * Given a mode, return the ext2 file type
946  */
947 static int ext2_file_type(unsigned int mode)
948 {
949         if (LINUX_S_ISREG(mode))
950                 return EXT2_FT_REG_FILE;
951
952         if (LINUX_S_ISDIR(mode))
953                 return EXT2_FT_DIR;
954         
955         if (LINUX_S_ISCHR(mode))
956                 return EXT2_FT_CHRDEV;
957         
958         if (LINUX_S_ISBLK(mode))
959                 return EXT2_FT_BLKDEV;
960         
961         if (LINUX_S_ISLNK(mode))
962                 return EXT2_FT_SYMLINK;
963
964         if (LINUX_S_ISFIFO(mode))
965                 return EXT2_FT_FIFO;
966         
967         if (LINUX_S_ISSOCK(mode))
968                 return EXT2_FT_SOCK;
969         
970         return 0;
971 }
972
973 static void make_link(char *sourcename, char *destname)
974 {
975         ext2_ino_t      ino;
976         struct ext2_inode inode;
977         int             retval;
978         ext2_ino_t      dir;
979         char            *dest, *cp, *basename;
980
981         /*
982          * Get the source inode
983          */
984         ino = string_to_inode(sourcename);
985         if (!ino)
986                 return;
987         basename = strrchr(sourcename, '/');
988         if (basename)
989                 basename++;
990         else
991                 basename = sourcename;
992         /*
993          * Figure out the destination.  First see if it exists and is
994          * a directory.  
995          */
996         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
997                 dest = basename;
998         else {
999                 /*
1000                  * OK, it doesn't exist.  See if it is
1001                  * '<dir>/basename' or 'basename'
1002                  */
1003                 cp = strrchr(destname, '/');
1004                 if (cp) {
1005                         *cp = 0;
1006                         dir = string_to_inode(destname);
1007                         if (!dir)
1008                                 return;
1009                         dest = cp+1;
1010                 } else {
1011                         dir = cwd;
1012                         dest = destname;
1013                 }
1014         }
1015
1016         if (debugfs_read_inode(ino, &inode, sourcename))
1017                 return;
1018         
1019         retval = ext2fs_link(current_fs, dir, dest, ino, 
1020                              ext2_file_type(inode.i_mode));
1021         if (retval)
1022                 com_err("make_link", retval, 0);
1023         return;
1024 }
1025
1026
1027 void do_link(int argc, char *argv[])
1028 {
1029         if (common_args_process(argc, argv, 3, 3, "link",
1030                                 "<source file> <dest_name>", CHECK_FS_RW))
1031                 return;
1032
1033         make_link(argv[1], argv[2]);
1034 }
1035
1036 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1037                             int blockcnt EXT2FS_ATTR((unused)), 
1038                             void *private EXT2FS_ATTR((unused)))
1039 {
1040         blk_t   block;
1041
1042         block = *blocknr;
1043         ext2fs_block_alloc_stats(fs, block, +1);
1044         return 0;
1045 }
1046
1047 void do_undel(int argc, char *argv[])
1048 {
1049         ext2_ino_t      ino;
1050         struct ext2_inode inode;
1051
1052         if (common_args_process(argc, argv, 3, 3, "undelete",
1053                                 "<inode_num> <dest_name>",
1054                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1055                 return;
1056
1057         ino = string_to_inode(argv[1]);
1058         if (!ino)
1059                 return;
1060
1061         if (debugfs_read_inode(ino, &inode, argv[1]))
1062                 return;
1063
1064         if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
1065                 com_err(argv[1], 0, "Inode is not marked as deleted");
1066                 return;
1067         }
1068
1069         /*
1070          * XXX this function doesn't handle changing the links count on the
1071          * parent directory when undeleting a directory.  
1072          */
1073         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1074         inode.i_dtime = 0;
1075
1076         if (debugfs_write_inode(ino, &inode, argv[0]))
1077                 return;
1078
1079         ext2fs_block_iterate(current_fs, ino, 0, NULL,
1080                              mark_blocks_proc, NULL);
1081
1082         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1083
1084         make_link(argv[1], argv[2]);
1085 }
1086
1087 static void unlink_file_by_name(char *filename)
1088 {
1089         int             retval;
1090         ext2_ino_t      dir;
1091         char            *basename;
1092         
1093         basename = strrchr(filename, '/');
1094         if (basename) {
1095                 *basename++ = '\0';
1096                 dir = string_to_inode(filename);
1097                 if (!dir)
1098                         return;
1099         } else {
1100                 dir = cwd;
1101                 basename = filename;
1102         }
1103         retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
1104         if (retval)
1105                 com_err("unlink_file_by_name", retval, 0);
1106         return;
1107 }
1108
1109 void do_unlink(int argc, char *argv[])
1110 {
1111         if (common_args_process(argc, argv, 2, 2, "link",
1112                                 "<pathname>", CHECK_FS_RW))
1113                 return;
1114
1115         unlink_file_by_name(argv[1]);
1116 }
1117
1118 void do_find_free_block(int argc, char *argv[])
1119 {
1120         blk_t   free_blk, goal;
1121         int             count;
1122         errcode_t       retval;
1123         char            *tmp;
1124         
1125         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1126                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1127                 return;
1128         }
1129         if (check_fs_open(argv[0]))
1130                 return;
1131
1132         if (argc > 1) {
1133                 count = strtol(argv[1],&tmp,0);
1134                 if (*tmp) {
1135                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1136                         return;
1137                 }
1138         } else
1139                 count = 1;
1140
1141         if (argc > 2) {
1142                 goal = strtol(argv[2], &tmp, 0);
1143                 if (*tmp) {
1144                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1145                         return;
1146                 }
1147         }
1148         else
1149                 goal = current_fs->super->s_first_data_block;
1150
1151         printf("Free blocks found: ");
1152         free_blk = goal - 1;    
1153         while (count-- > 0) {
1154                 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
1155                                           &free_blk);
1156                 if (retval) {
1157                         com_err("ext2fs_new_block", retval, 0);
1158                         return;
1159                 } else
1160                         printf("%u ", free_blk);
1161         }
1162         printf("\n");
1163 }
1164
1165 void do_find_free_inode(int argc, char *argv[])
1166 {
1167         ext2_ino_t      free_inode, dir;
1168         int             mode;
1169         int             retval;
1170         char            *tmp;
1171         
1172         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1173                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1174                 return;
1175         }
1176         if (check_fs_open(argv[0]))
1177                 return;
1178
1179         if (argc > 1) {
1180                 dir = strtol(argv[1], &tmp, 0);
1181                 if (*tmp) {
1182                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1183                         return;
1184                 }
1185         }
1186         else
1187                 dir = root;
1188         if (argc > 2) {
1189                 mode = strtol(argv[2], &tmp, 0);
1190                 if (*tmp) {
1191                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1192                         return;
1193                 }
1194         } else
1195                 mode = 010755;
1196
1197         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1198         if (retval)
1199                 com_err("ext2fs_new_inode", retval, 0);
1200         else
1201                 printf("Free inode found: %u\n", free_inode);
1202 }
1203
1204 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1205 {
1206         ext2_file_t     e2_file;
1207         errcode_t       retval;
1208         int             got;
1209         unsigned int    written;
1210         char            buf[8192];
1211         char            *ptr;
1212
1213         retval = ext2fs_file_open(current_fs, newfile,
1214                                   EXT2_FILE_WRITE, &e2_file);
1215         if (retval)
1216                 return retval;
1217
1218         while (1) {
1219                 got = read(fd, buf, sizeof(buf));
1220                 if (got == 0)
1221                         break;
1222                 if (got < 0) {
1223                         retval = errno;
1224                         goto fail;
1225                 }
1226                 ptr = buf;
1227                 while (got > 0) {
1228                         retval = ext2fs_file_write(e2_file, ptr,
1229                                                    got, &written);
1230                         if (retval)
1231                                 goto fail;
1232
1233                         got -= written;
1234                         ptr += written;
1235                 }
1236         }
1237         retval = ext2fs_file_close(e2_file);
1238         return retval;
1239
1240 fail:
1241         (void) ext2fs_file_close(e2_file);
1242         return retval;
1243 }
1244
1245
1246 void do_write(int argc, char *argv[])
1247 {
1248         int             fd;
1249         struct stat     statbuf;
1250         ext2_ino_t      newfile;
1251         errcode_t       retval;
1252         struct ext2_inode inode;
1253
1254         if (common_args_process(argc, argv, 3, 3, "write",
1255                                 "<native file> <new file>", CHECK_FS_RW))
1256                 return;
1257
1258         fd = open(argv[1], O_RDONLY);
1259         if (fd < 0) {
1260                 com_err(argv[1], errno, 0);
1261                 return;
1262         }
1263         if (fstat(fd, &statbuf) < 0) {
1264                 com_err(argv[1], errno, 0);
1265                 close(fd);
1266                 return;
1267         }
1268
1269         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1270         if (retval == 0) {
1271                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1272                 close(fd);
1273                 return;
1274         }
1275
1276         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1277         if (retval) {
1278                 com_err(argv[0], retval, 0);
1279                 close(fd);
1280                 return;
1281         }
1282         printf("Allocated inode: %u\n", newfile);
1283         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1284                              EXT2_FT_REG_FILE);
1285         if (retval == EXT2_ET_DIR_NO_SPACE) {
1286                 retval = ext2fs_expand_dir(current_fs, cwd);
1287                 if (retval) {
1288                         com_err(argv[0], retval, "while expanding directory");
1289                         return;
1290                 }
1291                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1292                                      EXT2_FT_REG_FILE);
1293         }
1294         if (retval) {
1295                 com_err(argv[2], retval, 0);
1296                 close(fd);
1297                 return;
1298         }
1299         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1300                 com_err(argv[0], 0, "Warning: inode already set");
1301         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1302         memset(&inode, 0, sizeof(inode));
1303         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1304         inode.i_atime = inode.i_ctime = inode.i_mtime = 
1305                 current_fs->now ? current_fs->now : time(0);
1306         inode.i_links_count = 1;
1307         inode.i_size = statbuf.st_size;
1308         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1309                 close(fd);
1310                 return;
1311         }
1312         if (LINUX_S_ISREG(inode.i_mode)) {
1313                 retval = copy_file(fd, newfile);
1314                 if (retval)
1315                         com_err("copy_file", retval, 0);
1316         }
1317         close(fd);
1318 }
1319
1320 void do_mknod(int argc, char *argv[])
1321 {
1322         unsigned long   mode, major, minor;
1323         ext2_ino_t      newfile;
1324         errcode_t       retval;
1325         struct ext2_inode inode;
1326         int             filetype, nr;
1327
1328         if (check_fs_open(argv[0]))
1329                 return;
1330         if (argc < 3 || argv[2][1]) {
1331         usage:
1332                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1333                 return;
1334         }
1335         mode = minor = major = 0;
1336         switch (argv[2][0]) {
1337                 case 'p':
1338                         mode = LINUX_S_IFIFO;
1339                         filetype = EXT2_FT_FIFO;
1340                         nr = 3;
1341                         break;
1342                 case 'c':
1343                         mode = LINUX_S_IFCHR;
1344                         filetype = EXT2_FT_CHRDEV;
1345                         nr = 5;
1346                         break;
1347                 case 'b':
1348                         mode = LINUX_S_IFBLK;
1349                         filetype = EXT2_FT_BLKDEV;
1350                         nr = 5;
1351                         break;
1352                 default:
1353                         filetype = 0;
1354                         nr = 0;
1355         }
1356         if (nr == 5) {
1357                 major = strtoul(argv[3], argv+3, 0);
1358                 minor = strtoul(argv[4], argv+4, 0);
1359                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1360                         nr = 0;
1361         }
1362         if (argc != nr)
1363                 goto usage;
1364         if (check_fs_read_write(argv[0]))
1365                 return;
1366         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1367         if (retval) {
1368                 com_err(argv[0], retval, 0);
1369                 return;
1370         }
1371         printf("Allocated inode: %u\n", newfile);
1372         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1373         if (retval == EXT2_ET_DIR_NO_SPACE) {
1374                 retval = ext2fs_expand_dir(current_fs, cwd);
1375                 if (retval) {
1376                         com_err(argv[0], retval, "while expanding directory");
1377                         return;
1378                 }
1379                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1380                                      filetype);
1381         }
1382         if (retval) {
1383                 com_err(argv[1], retval, 0);
1384                 return;
1385         }
1386         if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1387                 com_err(argv[0], 0, "Warning: inode already set");
1388         ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1389         ext2fs_mark_ib_dirty(current_fs);
1390         memset(&inode, 0, sizeof(inode));
1391         inode.i_mode = mode;
1392         inode.i_atime = inode.i_ctime = inode.i_mtime = 
1393                 current_fs->now ? current_fs->now : time(0);
1394         if ((major < 256) && (minor < 256)) {
1395                 inode.i_block[0] = major*256+minor;
1396                 inode.i_block[1] = 0;
1397         } else {
1398                 inode.i_block[0] = 0;
1399                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1400         }
1401         inode.i_links_count = 1;
1402         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1403                 return;
1404 }
1405
1406 void do_mkdir(int argc, char *argv[])
1407 {
1408         char    *cp;
1409         ext2_ino_t      parent;
1410         char    *name;
1411         errcode_t retval;
1412
1413         if (common_args_process(argc, argv, 2, 2, "mkdir",
1414                                 "<filename>", CHECK_FS_RW))
1415                 return;
1416
1417         cp = strrchr(argv[1], '/');
1418         if (cp) {
1419                 *cp = 0;
1420                 parent = string_to_inode(argv[1]);
1421                 if (!parent) {
1422                         com_err(argv[1], ENOENT, 0);
1423                         return;
1424                 }
1425                 name = cp+1;
1426         } else {
1427                 parent = cwd;
1428                 name = argv[1];
1429         }
1430
1431 try_again:
1432         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1433         if (retval == EXT2_ET_DIR_NO_SPACE) {
1434                 retval = ext2fs_expand_dir(current_fs, parent);
1435                 if (retval) {
1436                         com_err("argv[0]", retval, "while expanding directory");
1437                         return;
1438                 }
1439                 goto try_again;
1440         }
1441         if (retval) {
1442                 com_err("ext2fs_mkdir", retval, 0);
1443                 return;
1444         }
1445
1446 }
1447
1448 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1449                                int blockcnt EXT2FS_ATTR((unused)), 
1450                                void *private EXT2FS_ATTR((unused)))
1451 {
1452         blk_t   block;
1453
1454         block = *blocknr;
1455         ext2fs_block_alloc_stats(fs, block, -1);
1456         return 0;
1457 }
1458
1459 static void kill_file_by_inode(ext2_ino_t inode)
1460 {
1461         struct ext2_inode inode_buf;
1462
1463         if (debugfs_read_inode(inode, &inode_buf, 0))
1464                 return;
1465         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1466         if (debugfs_write_inode(inode, &inode_buf, 0))
1467                 return;
1468         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1469                 return;
1470
1471         ext2fs_block_iterate(current_fs, inode, 0, NULL,
1472                              release_blocks_proc, NULL);
1473         printf("\n");
1474         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1475                                   LINUX_S_ISDIR(inode_buf.i_mode));
1476 }
1477
1478
1479 void do_kill_file(int argc, char *argv[])
1480 {
1481         ext2_ino_t inode_num;
1482
1483         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1484                 return;
1485
1486         kill_file_by_inode(inode_num);
1487 }
1488
1489 void do_rm(int argc, char *argv[])
1490 {
1491         int retval;
1492         ext2_ino_t inode_num;
1493         struct ext2_inode inode;
1494
1495         if (common_args_process(argc, argv, 2, 2, "rm",
1496                                 "<filename>", CHECK_FS_RW))
1497                 return;
1498
1499         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1500         if (retval) {
1501                 com_err(argv[0], retval, "while trying to resolve filename");
1502                 return;
1503         }
1504
1505         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1506                 return;
1507
1508         if (LINUX_S_ISDIR(inode.i_mode)) {
1509                 com_err(argv[0], 0, "file is a directory");
1510                 return;
1511         }
1512
1513         --inode.i_links_count;
1514         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1515                 return;
1516
1517         unlink_file_by_name(argv[1]);
1518         if (inode.i_links_count == 0)
1519                 kill_file_by_inode(inode_num);
1520 }
1521
1522 struct rd_struct {
1523         ext2_ino_t      parent;
1524         int             empty;
1525 };
1526
1527 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1528                       int       entry EXT2FS_ATTR((unused)),
1529                       struct ext2_dir_entry *dirent,
1530                       int       offset EXT2FS_ATTR((unused)),
1531                       int       blocksize EXT2FS_ATTR((unused)),
1532                       char      *buf EXT2FS_ATTR((unused)),
1533                       void      *private)
1534 {
1535         struct rd_struct *rds = (struct rd_struct *) private;
1536
1537         if (dirent->inode == 0)
1538                 return 0;
1539         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1540                 return 0;
1541         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1542             (dirent->name[1] == '.')) {
1543                 rds->parent = dirent->inode;
1544                 return 0;
1545         }
1546         rds->empty = 0;
1547         return 0;
1548 }
1549         
1550 void do_rmdir(int argc, char *argv[])
1551 {
1552         int retval;
1553         ext2_ino_t inode_num;
1554         struct ext2_inode inode;
1555         struct rd_struct rds;
1556
1557         if (common_args_process(argc, argv, 2, 2, "rmdir",
1558                                 "<filename>", CHECK_FS_RW))
1559                 return;
1560
1561         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1562         if (retval) {
1563                 com_err(argv[0], retval, "while trying to resolve filename");
1564                 return;
1565         }
1566
1567         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1568                 return;
1569
1570         if (!LINUX_S_ISDIR(inode.i_mode)) {
1571                 com_err(argv[0], 0, "file is not a directory");
1572                 return;
1573         }
1574
1575         rds.parent = 0;
1576         rds.empty = 1;
1577
1578         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1579                                     0, rmdir_proc, &rds);
1580         if (retval) {
1581                 com_err(argv[0], retval, "while iterating over directory");
1582                 return;
1583         }
1584         if (rds.empty == 0) {
1585                 com_err(argv[0], 0, "directory not empty");
1586                 return;
1587         }
1588
1589         inode.i_links_count = 0;
1590         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1591                 return;
1592
1593         unlink_file_by_name(argv[1]);
1594         kill_file_by_inode(inode_num);
1595
1596         if (rds.parent) {
1597                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1598                         return;
1599                 if (inode.i_links_count > 1)
1600                         inode.i_links_count--;
1601                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1602                         return;
1603         }
1604 }
1605
1606 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 
1607                             char *argv[] EXT2FS_ATTR((unused)))
1608 {
1609         FILE *out = stdout;
1610
1611         if (current_fs)
1612                 fprintf(out, "Open mode: read-%s\n",
1613                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1614         fprintf(out, "Filesystem in use: %s\n",
1615                 current_fs ? current_fs->device_name : "--none--");
1616 }
1617
1618 void do_expand_dir(int argc, char *argv[])
1619 {
1620         ext2_ino_t inode;
1621         int retval;
1622
1623         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1624                 return;
1625
1626         retval = ext2fs_expand_dir(current_fs, inode);
1627         if (retval)
1628                 com_err("ext2fs_expand_dir", retval, 0);
1629         return;
1630 }
1631
1632 void do_features(int argc, char *argv[])
1633 {
1634         int     i;
1635         
1636         if (check_fs_open(argv[0]))
1637                 return;
1638
1639         if ((argc != 1) && check_fs_read_write(argv[0]))
1640                 return;
1641         for (i=1; i < argc; i++) {
1642                 if (e2p_edit_feature(argv[i],
1643                                      &current_fs->super->s_feature_compat, 0))
1644                         com_err(argv[0], 0, "Unknown feature: %s\n",
1645                                 argv[i]);
1646                 else
1647                         ext2fs_mark_super_dirty(current_fs);
1648         }
1649         print_features(current_fs->super, stdout);
1650 }
1651
1652 void do_bmap(int argc, char *argv[])
1653 {
1654         ext2_ino_t      ino;
1655         blk_t           blk, pblk;
1656         int             err;
1657         errcode_t       errcode;
1658         
1659         if (common_args_process(argc, argv, 3, 3, argv[0],
1660                                 "<file> logical_blk", 0))
1661                 return;
1662
1663         ino = string_to_inode(argv[1]);
1664         if (!ino)
1665                 return;
1666         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1667
1668         errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1669         if (errcode) {
1670                 com_err("argv[0]", errcode,
1671                         "while mapping logical block %u\n", blk);
1672                 return;
1673         }
1674         printf("%u\n", pblk);
1675 }
1676
1677 void do_imap(int argc, char *argv[])
1678 {
1679         ext2_ino_t      ino;
1680         unsigned long   group, block, block_nr, offset;
1681
1682         if (common_args_process(argc, argv, 2, 2, argv[0],
1683                                 "<file>", 0))
1684                 return;
1685         ino = string_to_inode(argv[1]);
1686         if (!ino)
1687                 return;
1688
1689         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1690         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1691                 EXT2_INODE_SIZE(current_fs->super);
1692         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1693         if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
1694                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1695                         group);
1696                 return;
1697         }
1698         block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table + 
1699                 block;
1700         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1701
1702         printf("Inode %d is part of block group %lu\n"
1703                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1704                block_nr, offset);
1705
1706 }
1707
1708 void do_set_current_time(int argc, char *argv[])
1709 {
1710         time_t now;
1711
1712         if (common_args_process(argc, argv, 2, 2, argv[0],
1713                                 "<time>", 0))
1714                 return;
1715
1716         now = string_to_time(argv[1]);
1717         if (now == ((time_t) -1)) {
1718                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1719                         argv[1]);
1720                 return;
1721
1722         } else {
1723                 printf("Setting current time to %s\n", time_to_string(now));
1724                 current_fs->now = now;
1725         }
1726 }
1727
1728 static int source_file(const char *cmd_file, int sci_idx)
1729 {
1730         FILE            *f;
1731         char            buf[256];
1732         char            *cp;
1733         int             exit_status = 0;
1734         int             retval;
1735
1736         if (strcmp(cmd_file, "-") == 0)
1737                 f = stdin;
1738         else {
1739                 f = fopen(cmd_file, "r");
1740                 if (!f) {
1741                         perror(cmd_file);
1742                         exit(1);
1743                 }
1744         }
1745         setbuf(stdout, NULL);
1746         setbuf(stderr, NULL);
1747         while (!feof(f)) {
1748                 if (fgets(buf, sizeof(buf), f) == NULL)
1749                         break;
1750                 cp = strchr(buf, '\n');
1751                 if (cp)
1752                         *cp = 0;
1753                 cp = strchr(buf, '\r');
1754                 if (cp)
1755                         *cp = 0;
1756                 printf("debugfs: %s\n", buf);
1757                 retval = ss_execute_line(sci_idx, buf);
1758                 if (retval) {
1759                         ss_perror(sci_idx, retval, buf);
1760                         exit_status++;
1761                 }
1762         }
1763         return exit_status;
1764 }
1765
1766 int main(int argc, char **argv)
1767 {
1768         int             retval;
1769         int             sci_idx;
1770         const char      *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1771         int             c;
1772         int             open_flags = 0;
1773         char            *request = 0;
1774         int             exit_status = 0;
1775         char            *cmd_file = 0;
1776         blk_t           superblock = 0;
1777         blk_t           blocksize = 0;
1778         int             catastrophic = 0;
1779         char            *data_filename = 0;
1780         
1781         initialize_ext2_error_table();
1782         fprintf (stderr, "debugfs %s (%s)\n", E2FSPROGS_VERSION,
1783                  E2FSPROGS_DATE);
1784
1785         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
1786                 switch (c) {
1787                 case 'R':
1788                         request = optarg;
1789                         break;
1790                 case 'f':
1791                         cmd_file = optarg;
1792                         break;
1793                 case 'd':
1794                         data_filename = optarg;
1795                         break;
1796                 case 'i':
1797                         open_flags |= EXT2_FLAG_IMAGE_FILE;
1798                         break;
1799                 case 'w':
1800                         open_flags |= EXT2_FLAG_RW;
1801                         break;
1802                 case 'b':
1803                         blocksize = parse_ulong(optarg, argv[0], 
1804                                                 "block size", 0);
1805                         break;
1806                 case 's':
1807                         superblock = parse_ulong(optarg, argv[0], 
1808                                                  "superblock number", 0);
1809                         break;
1810                 case 'c':
1811                         catastrophic = 1;
1812                         break;
1813                 case 'V':
1814                         /* Print version number and exit */
1815                         fprintf(stderr, "\tUsing %s\n",
1816                                 error_message(EXT2_ET_BASE));
1817                         exit(0);
1818                 default:
1819                         com_err(argv[0], 0, usage);
1820                         return 1;
1821                 }
1822         }
1823         if (optind < argc)
1824                 open_filesystem(argv[optind], open_flags,
1825                                 superblock, blocksize, catastrophic,
1826                                 data_filename);
1827         
1828         sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1829                                        &debug_cmds, &retval);
1830         if (retval) {
1831                 ss_perror(sci_idx, retval, "creating invocation");
1832                 exit(1);
1833         }
1834         ss_get_readline(sci_idx);
1835
1836         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1837         if (retval) {
1838                 ss_perror(sci_idx, retval, "adding standard requests");
1839                 exit (1);
1840         }
1841         if (request) {
1842                 retval = 0;
1843                 retval = ss_execute_line(sci_idx, request);
1844                 if (retval) {
1845                         ss_perror(sci_idx, retval, request);
1846                         exit_status++;
1847                 }
1848         } else if (cmd_file) {
1849                 exit_status = source_file(cmd_file, sci_idx);
1850         } else {
1851                 ss_listen(sci_idx);
1852         }
1853
1854         if (current_fs)
1855                 close_filesystem();
1856         
1857         return exit_status;
1858 }