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authorEric Andersen <andersen@codepoet.org>1999-10-19 20:23:03 +0000
committerEric Andersen <andersen@codepoet.org>1999-10-19 20:23:03 +0000
commite494fdd2c73f7f2979f7e02d65e46a50bd86a59f (patch)
tree421436a8d83b6974088dd1e97d53139406616085 /util-linux/mkfs_minix.c
parente77ae3a2c0328590b43447550bdb1284650b8236 (diff)
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1/*
2 * mkfs.c - make a linux (minix) file-system.
3 *
4 * (C) 1991 Linus Torvalds. This file may be redistributed as per
5 * the Linux copyright.
6 */
7
8/*
9 * DD.MM.YY
10 *
11 * 24.11.91 - Time began. Used the fsck sources to get started.
12 *
13 * 25.11.91 - Corrected some bugs. Added support for ".badblocks"
14 * The algorithm for ".badblocks" is a bit weird, but
15 * it should work. Oh, well.
16 *
17 * 25.01.92 - Added the -l option for getting the list of bad blocks
18 * out of a named file. (Dave Rivers, rivers@ponds.uucp)
19 *
20 * 28.02.92 - Added %-information when using -c.
21 *
22 * 28.02.93 - Added support for other namelengths than the original
23 * 14 characters so that I can test the new kernel routines..
24 *
25 * 09.10.93 - Make exit status conform to that required by fsutil
26 * (Rik Faith, faith@cs.unc.edu)
27 *
28 * 31.10.93 - Added inode request feature, for backup floppies: use
29 * 32 inodes, for a news partition use more.
30 * (Scott Heavner, sdh@po.cwru.edu)
31 *
32 * 03.01.94 - Added support for file system valid flag.
33 * (Dr. Wettstein, greg%wind.uucp@plains.nodak.edu)
34 *
35 * 30.10.94 - added support for v2 filesystem
36 * (Andreas Schwab, schwab@issan.informatik.uni-dortmund.de)
37 *
38 * 09.11.94 - Added test to prevent overwrite of mounted fs adapted
39 * from Theodore Ts'o's (tytso@athena.mit.edu) mke2fs
40 * program. (Daniel Quinlan, quinlan@yggdrasil.com)
41 *
42 * 03.20.95 - Clear first 512 bytes of filesystem to make certain that
43 * the filesystem is not misidentified as a MS-DOS FAT filesystem.
44 * (Daniel Quinlan, quinlan@yggdrasil.com)
45 *
46 * 02.07.96 - Added small patch from Russell King to make the program a
47 * good deal more portable (janl@math.uio.no)
48 *
49 * Usage: mkfs [-c | -l filename ] [-v] [-nXX] [-iXX] device [size-in-blocks]
50 *
51 * -c for readablility checking (SLOW!)
52 * -l for getting a list of bad blocks from a file.
53 * -n for namelength (currently the kernel only uses 14 or 30)
54 * -i for number of inodes
55 * -v for v2 filesystem
56 *
57 * The device may be a block device or a image of one, but this isn't
58 * enforced (but it's not much fun on a character device :-).
59 */
60
61#include <stdio.h>
62#include <time.h>
63#include <unistd.h>
64#include <string.h>
65#include <signal.h>
66#include <fcntl.h>
67#include <ctype.h>
68#include <stdlib.h>
69#include <termios.h>
70#include <sys/stat.h>
71#include <sys/ioctl.h>
72#include <mntent.h>
73#include <getopt.h>
74
75#include <linux/fs.h>
76#include <linux/minix_fs.h>
77
78#include "nls.h"
79#include "../version.h"
80
81#ifdef MINIX2_SUPER_MAGIC2
82#define HAVE_MINIX2 1
83#endif
84
85#ifndef __GNUC__
86#error "needs gcc for the bitop-__asm__'s"
87#endif
88
89#ifndef __linux__
90#define volatile
91#endif
92
93#define MINIX_ROOT_INO 1
94#define MINIX_BAD_INO 2
95
96#define TEST_BUFFER_BLOCKS 16
97#define MAX_GOOD_BLOCKS 512
98
99#define UPPER(size,n) (((size)+((n)-1))/(n))
100#define INODE_SIZE (sizeof(struct minix_inode))
101#ifdef HAVE_MINIX2
102#define INODE_SIZE2 (sizeof(struct minix2_inode))
103#define INODE_BLOCKS UPPER(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \
104 : MINIX_INODES_PER_BLOCK))
105#else
106#define INODE_BLOCKS UPPER(INODES, (MINIX_INODES_PER_BLOCK))
107#endif
108#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
109
110#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
111
112static char * program_name = "mkfs";
113static char * device_name = NULL;
114static int DEV = -1;
115static long BLOCKS = 0;
116static int check = 0;
117static int badblocks = 0;
118static int namelen = 30; /* default (changed to 30, per Linus's
119 suggestion, Sun Nov 21 08:05:07 1993) */
120static int dirsize = 32;
121static int magic = MINIX_SUPER_MAGIC2;
122static int version2 = 0;
123
124static char root_block[BLOCK_SIZE] = "\0";
125
126static char * inode_buffer = NULL;
127#define Inode (((struct minix_inode *) inode_buffer)-1)
128#ifdef HAVE_MINIX2
129#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
130#endif
131static char super_block_buffer[BLOCK_SIZE];
132static char boot_block_buffer[512];
133#define Super (*(struct minix_super_block *)super_block_buffer)
134#define INODES ((unsigned long)Super.s_ninodes)
135#ifdef HAVE_MINIX2
136#define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones))
137#else
138#define ZONES ((unsigned long)(Super.s_nzones))
139#endif
140#define IMAPS ((unsigned long)Super.s_imap_blocks)
141#define ZMAPS ((unsigned long)Super.s_zmap_blocks)
142#define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
143#define ZONESIZE ((unsigned long)Super.s_log_zone_size)
144#define MAXSIZE ((unsigned long)Super.s_max_size)
145#define MAGIC (Super.s_magic)
146#define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
147
148static char *inode_map;
149static char *zone_map;
150
151static unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
152static int used_good_blocks = 0;
153static unsigned long req_nr_inodes = 0;
154
155#include "bitops.h"
156
157#define inode_in_use(x) (bit(inode_map,(x)))
158#define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
159
160#define mark_inode(x) (setbit(inode_map,(x)))
161#define unmark_inode(x) (clrbit(inode_map,(x)))
162
163#define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
164#define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
165
166/*
167 * Volatile to let gcc know that this doesn't return. When trying
168 * to compile this under minix, volatile gives a warning, as
169 * exit() isn't defined as volatile under minix.
170 */
171volatile void fatal_error(const char * fmt_string,int status)
172{
173 fprintf(stderr,fmt_string,program_name,device_name);
174 exit(status);
175}
176
177volatile void die(char *str) {
178 fprintf(stderr, "%s: %s\n", program_name, str);
179 exit(8);
180}
181
182volatile void usage()
183{
184 fprintf(stderr, "%s (%s)\n", program_name, util_linux_version);
185 fprintf(stderr,
186 _("Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]\n"),
187 program_name);
188 exit(16);
189}
190
191/*
192 * Check to make certain that our new filesystem won't be created on
193 * an already mounted partition. Code adapted from mke2fs, Copyright
194 * (C) 1994 Theodore Ts'o. Also licensed under GPL.
195 */
196static void check_mount(void)
197{
198 FILE * f;
199 struct mntent * mnt;
200
201 if ((f = setmntent (MOUNTED, "r")) == NULL)
202 return;
203 while ((mnt = getmntent (f)) != NULL)
204 if (strcmp (device_name, mnt->mnt_fsname) == 0)
205 break;
206 endmntent (f);
207 if (!mnt)
208 return;
209
210 die(_("%s is mounted; will not make a filesystem here!"));
211}
212
213static long valid_offset (int fd, int offset)
214{
215 char ch;
216
217 if (lseek (fd, offset, 0) < 0)
218 return 0;
219 if (read (fd, &ch, 1) < 1)
220 return 0;
221 return 1;
222}
223
224static int count_blocks (int fd)
225{
226 int high, low;
227
228 low = 0;
229 for (high = 1; valid_offset (fd, high); high *= 2)
230 low = high;
231 while (low < high - 1)
232 {
233 const int mid = (low + high) / 2;
234
235 if (valid_offset (fd, mid))
236 low = mid;
237 else
238 high = mid;
239 }
240 valid_offset (fd, 0);
241 return (low + 1);
242}
243
244static int get_size(const char *file)
245{
246 int fd;
247 long size;
248
249 fd = open(file, O_RDWR);
250 if (fd < 0) {
251 perror(file);
252 exit(1);
253 }
254 if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
255 close(fd);
256 return (size * 512);
257 }
258
259 size = count_blocks(fd);
260 close(fd);
261 return size;
262}
263
264void write_tables(void)
265{
266 /* Mark the super block valid. */
267 Super.s_state |= MINIX_VALID_FS;
268 Super.s_state &= ~MINIX_ERROR_FS;
269
270 if (lseek(DEV, 0, SEEK_SET))
271 die(_("seek to boot block failed in write_tables"));
272 if (512 != write(DEV, boot_block_buffer, 512))
273 die(_("unable to clear boot sector"));
274 if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
275 die(_("seek failed in write_tables"));
276 if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
277 die(_("unable to write super-block"));
278 if (IMAPS*BLOCK_SIZE != write(DEV,inode_map,IMAPS*BLOCK_SIZE))
279 die(_("unable to write inode map"));
280 if (ZMAPS*BLOCK_SIZE != write(DEV,zone_map,ZMAPS*BLOCK_SIZE))
281 die(_("unable to write zone map"));
282 if (INODE_BUFFER_SIZE != write(DEV,inode_buffer,INODE_BUFFER_SIZE))
283 die(_("unable to write inodes"));
284
285}
286
287void write_block(int blk, char * buffer)
288{
289 if (blk*BLOCK_SIZE != lseek(DEV, blk*BLOCK_SIZE, SEEK_SET))
290 die(_("seek failed in write_block"));
291 if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
292 die(_("write failed in write_block"));
293}
294
295int get_free_block(void)
296{
297 int blk;
298
299 if (used_good_blocks+1 >= MAX_GOOD_BLOCKS)
300 die(_("too many bad blocks"));
301 if (used_good_blocks)
302 blk = good_blocks_table[used_good_blocks-1]+1;
303 else
304 blk = FIRSTZONE;
305 while (blk < ZONES && zone_in_use(blk))
306 blk++;
307 if (blk >= ZONES)
308 die(_("not enough good blocks"));
309 good_blocks_table[used_good_blocks] = blk;
310 used_good_blocks++;
311 return blk;
312}
313
314void mark_good_blocks(void)
315{
316 int blk;
317
318 for (blk=0 ; blk < used_good_blocks ; blk++)
319 mark_zone(good_blocks_table[blk]);
320}
321
322inline int next(int zone)
323{
324 if (!zone)
325 zone = FIRSTZONE-1;
326 while (++zone < ZONES)
327 if (zone_in_use(zone))
328 return zone;
329 return 0;
330}
331
332void make_bad_inode(void)
333{
334 struct minix_inode * inode = &Inode[MINIX_BAD_INO];
335 int i,j,zone;
336 int ind=0,dind=0;
337 unsigned short ind_block[BLOCK_SIZE>>1];
338 unsigned short dind_block[BLOCK_SIZE>>1];
339
340#define NEXT_BAD (zone = next(zone))
341
342 if (!badblocks)
343 return;
344 mark_inode(MINIX_BAD_INO);
345 inode->i_nlinks = 1;
346 inode->i_time = time(NULL);
347 inode->i_mode = S_IFREG + 0000;
348 inode->i_size = badblocks*BLOCK_SIZE;
349 zone = next(0);
350 for (i=0 ; i<7 ; i++) {
351 inode->i_zone[i] = zone;
352 if (!NEXT_BAD)
353 goto end_bad;
354 }
355 inode->i_zone[7] = ind = get_free_block();
356 memset(ind_block,0,BLOCK_SIZE);
357 for (i=0 ; i<512 ; i++) {
358 ind_block[i] = zone;
359 if (!NEXT_BAD)
360 goto end_bad;
361 }
362 inode->i_zone[8] = dind = get_free_block();
363 memset(dind_block,0,BLOCK_SIZE);
364 for (i=0 ; i<512 ; i++) {
365 write_block(ind,(char *) ind_block);
366 dind_block[i] = ind = get_free_block();
367 memset(ind_block,0,BLOCK_SIZE);
368 for (j=0 ; j<512 ; j++) {
369 ind_block[j] = zone;
370 if (!NEXT_BAD)
371 goto end_bad;
372 }
373 }
374 die(_("too many bad blocks"));
375end_bad:
376 if (ind)
377 write_block(ind, (char *) ind_block);
378 if (dind)
379 write_block(dind, (char *) dind_block);
380}
381
382#ifdef HAVE_MINIX2
383void
384make_bad_inode2 (void)
385{
386 struct minix2_inode *inode = &Inode2[MINIX_BAD_INO];
387 int i, j, zone;
388 int ind = 0, dind = 0;
389 unsigned long ind_block[BLOCK_SIZE >> 2];
390 unsigned long dind_block[BLOCK_SIZE >> 2];
391
392 if (!badblocks)
393 return;
394 mark_inode (MINIX_BAD_INO);
395 inode->i_nlinks = 1;
396 inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
397 inode->i_mode = S_IFREG + 0000;
398 inode->i_size = badblocks * BLOCK_SIZE;
399 zone = next (0);
400 for (i = 0; i < 7; i++) {
401 inode->i_zone[i] = zone;
402 if (!NEXT_BAD)
403 goto end_bad;
404 }
405 inode->i_zone[7] = ind = get_free_block ();
406 memset (ind_block, 0, BLOCK_SIZE);
407 for (i = 0; i < 256; i++) {
408 ind_block[i] = zone;
409 if (!NEXT_BAD)
410 goto end_bad;
411 }
412 inode->i_zone[8] = dind = get_free_block ();
413 memset (dind_block, 0, BLOCK_SIZE);
414 for (i = 0; i < 256; i++) {
415 write_block (ind, (char *) ind_block);
416 dind_block[i] = ind = get_free_block ();
417 memset (ind_block, 0, BLOCK_SIZE);
418 for (j = 0; j < 256; j++) {
419 ind_block[j] = zone;
420 if (!NEXT_BAD)
421 goto end_bad;
422 }
423 }
424 /* Could make triple indirect block here */
425 die (_("too many bad blocks"));
426 end_bad:
427 if (ind)
428 write_block (ind, (char *) ind_block);
429 if (dind)
430 write_block (dind, (char *) dind_block);
431}
432#endif
433
434void make_root_inode(void)
435{
436 struct minix_inode * inode = &Inode[MINIX_ROOT_INO];
437
438 mark_inode(MINIX_ROOT_INO);
439 inode->i_zone[0] = get_free_block();
440 inode->i_nlinks = 2;
441 inode->i_time = time(NULL);
442 if (badblocks)
443 inode->i_size = 3*dirsize;
444 else {
445 root_block[2*dirsize] = '\0';
446 root_block[2*dirsize+1] = '\0';
447 inode->i_size = 2*dirsize;
448 }
449 inode->i_mode = S_IFDIR + 0755;
450 inode->i_uid = getuid();
451 if (inode->i_uid)
452 inode->i_gid = getgid();
453 write_block(inode->i_zone[0],root_block);
454}
455
456#ifdef HAVE_MINIX2
457void
458make_root_inode2 (void)
459{
460 struct minix2_inode *inode = &Inode2[MINIX_ROOT_INO];
461
462 mark_inode (MINIX_ROOT_INO);
463 inode->i_zone[0] = get_free_block ();
464 inode->i_nlinks = 2;
465 inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
466 if (badblocks)
467 inode->i_size = 3 * dirsize;
468 else {
469 root_block[2 * dirsize] = '\0';
470 root_block[2 * dirsize + 1] = '\0';
471 inode->i_size = 2 * dirsize;
472 }
473 inode->i_mode = S_IFDIR + 0755;
474 inode->i_uid = getuid();
475 if (inode->i_uid)
476 inode->i_gid = getgid();
477 write_block (inode->i_zone[0], root_block);
478}
479#endif
480
481void setup_tables(void)
482{
483 int i;
484 unsigned long inodes;
485
486 memset(super_block_buffer,0,BLOCK_SIZE);
487 memset(boot_block_buffer,0,512);
488 MAGIC = magic;
489 ZONESIZE = 0;
490 MAXSIZE = version2 ? 0x7fffffff : (7+512+512*512)*1024;
491 ZONES = BLOCKS;
492/* some magic nrs: 1 inode / 3 blocks */
493 if ( req_nr_inodes == 0 )
494 inodes = BLOCKS/3;
495 else
496 inodes = req_nr_inodes;
497 /* Round up inode count to fill block size */
498#ifdef HAVE_MINIX2
499 if (version2)
500 inodes = ((inodes + MINIX2_INODES_PER_BLOCK - 1) &
501 ~(MINIX2_INODES_PER_BLOCK - 1));
502 else
503#endif
504 inodes = ((inodes + MINIX_INODES_PER_BLOCK - 1) &
505 ~(MINIX_INODES_PER_BLOCK - 1));
506 if (inodes > 65535)
507 inodes = 65535;
508 INODES = inodes;
509 IMAPS = UPPER(INODES + 1,BITS_PER_BLOCK);
510 ZMAPS = 0;
511 i=0;
512 while (ZMAPS != UPPER(BLOCKS - (2+IMAPS+ZMAPS+INODE_BLOCKS) + 1,BITS_PER_BLOCK) && i<1000) {
513 ZMAPS = UPPER(BLOCKS - (2+IMAPS+ZMAPS+INODE_BLOCKS) + 1,BITS_PER_BLOCK);
514 i++;
515 }
516 /* Real bad hack but overwise mkfs.minix can be thrown
517 * in infinite loop...
518 * try:
519 * dd if=/dev/zero of=test.fs count=10 bs=1024
520 * /sbin/mkfs.minix -i 200 test.fs
521 * */
522 if (i>=999) {
523 die ("unable to allocate buffers for maps");
524 }
525 FIRSTZONE = NORM_FIRSTZONE;
526 inode_map = malloc(IMAPS * BLOCK_SIZE);
527 zone_map = malloc(ZMAPS * BLOCK_SIZE);
528 if (!inode_map || !zone_map)
529 die(_("unable to allocate buffers for maps"));
530 memset(inode_map,0xff,IMAPS * BLOCK_SIZE);
531 memset(zone_map,0xff,ZMAPS * BLOCK_SIZE);
532 for (i = FIRSTZONE ; i<ZONES ; i++)
533 unmark_zone(i);
534 for (i = MINIX_ROOT_INO ; i<=INODES ; i++)
535 unmark_inode(i);
536 inode_buffer = malloc(INODE_BUFFER_SIZE);
537 if (!inode_buffer)
538 die(_("unable to allocate buffer for inodes"));
539 memset(inode_buffer,0,INODE_BUFFER_SIZE);
540 printf(_("%ld inodes\n"),INODES);
541 printf(_("%ld blocks\n"),ZONES);
542 printf(_("Firstdatazone=%ld (%ld)\n"),FIRSTZONE,NORM_FIRSTZONE);
543 printf(_("Zonesize=%d\n"),BLOCK_SIZE<<ZONESIZE);
544 printf(_("Maxsize=%ld\n\n"),MAXSIZE);
545}
546
547/*
548 * Perform a test of a block; return the number of
549 * blocks readable/writeable.
550 */
551long do_check(char * buffer, int try, unsigned int current_block)
552{
553 long got;
554
555 /* Seek to the correct loc. */
556 if (lseek(DEV, current_block * BLOCK_SIZE, SEEK_SET) !=
557 current_block * BLOCK_SIZE ) {
558 die(_("seek failed during testing of blocks"));
559 }
560
561
562 /* Try the read */
563 got = read(DEV, buffer, try * BLOCK_SIZE);
564 if (got < 0) got = 0;
565 if (got & (BLOCK_SIZE - 1 )) {
566 printf(_("Weird values in do_check: probably bugs\n"));
567 }
568 got /= BLOCK_SIZE;
569 return got;
570}
571
572static unsigned int currently_testing = 0;
573
574void alarm_intr(int alnum)
575{
576 if (currently_testing >= ZONES)
577 return;
578 signal(SIGALRM,alarm_intr);
579 alarm(5);
580 if (!currently_testing)
581 return;
582 printf("%d ...", currently_testing);
583 fflush(stdout);
584}
585
586void check_blocks(void)
587{
588 int try,got;
589 static char buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
590
591 currently_testing=0;
592 signal(SIGALRM,alarm_intr);
593 alarm(5);
594 while (currently_testing < ZONES) {
595 if (lseek(DEV,currently_testing*BLOCK_SIZE,SEEK_SET) !=
596 currently_testing*BLOCK_SIZE)
597 die(_("seek failed in check_blocks"));
598 try = TEST_BUFFER_BLOCKS;
599 if (currently_testing + try > ZONES)
600 try = ZONES-currently_testing;
601 got = do_check(buffer, try, currently_testing);
602 currently_testing += got;
603 if (got == try)
604 continue;
605 if (currently_testing < FIRSTZONE)
606 die(_("bad blocks before data-area: cannot make fs"));
607 mark_zone(currently_testing);
608 badblocks++;
609 currently_testing++;
610 }
611 if (badblocks > 1)
612 printf(_("%d bad blocks\n"), badblocks);
613 else if (badblocks == 1)
614 printf(_("one bad block\n"));
615}
616
617void get_list_blocks(filename)
618char *filename;
619
620{
621 FILE *listfile;
622 unsigned long blockno;
623
624 listfile=fopen(filename,"r");
625 if(listfile == (FILE *)NULL) {
626 die(_("can't open file of bad blocks"));
627 }
628 while(!feof(listfile)) {
629 fscanf(listfile,"%ld\n", &blockno);
630 mark_zone(blockno);
631 badblocks++;
632 }
633 if(badblocks > 1)
634 printf(_("%d bad blocks\n"), badblocks);
635 else if (badblocks == 1)
636 printf(_("one bad block\n"));
637}
638
639extern int
640mkfs_minix_main(int argc, char ** argv)
641{
642 int i;
643 char * tmp;
644 struct stat statbuf;
645 char * listfile = NULL;
646
647 if (argc && *argv)
648 program_name = *argv;
649 if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
650 die(_("bad inode size"));
651#ifdef HAVE_MINIX2
652 if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
653 die(_("bad inode size"));
654#endif
655 opterr = 0;
656 while ((i = getopt(argc, argv, "ci:l:n:v")) != EOF)
657 switch (i) {
658 case 'c':
659 check=1; break;
660 case 'i':
661 req_nr_inodes = (unsigned long) atol(optarg);
662 break;
663 case 'l':
664 listfile = optarg; break;
665 case 'n':
666 i = strtoul(optarg,&tmp,0);
667 if (*tmp)
668 usage();
669 if (i == 14)
670 magic = MINIX_SUPER_MAGIC;
671 else if (i == 30)
672 magic = MINIX_SUPER_MAGIC2;
673 else
674 usage();
675 namelen = i;
676 dirsize = i+2;
677 break;
678 case 'v':
679#ifdef HAVE_MINIX2
680 version2 = 1;
681#else
682 fatal_error(_("%s: not compiled with minix v2 support\n"),-1);
683#endif
684 break;
685 default:
686 usage();
687 }
688 argc -= optind;
689 argv += optind;
690 if (argc > 0 && !device_name) {
691 device_name = argv[0];
692 argc--;
693 argv++;
694 }
695 if (argc > 0) {
696 BLOCKS = strtol(argv[0],&tmp,0);
697 if (*tmp) {
698 printf(_("strtol error: number of blocks not specified"));
699 usage();
700 }
701 }
702
703 if (device_name && !BLOCKS)
704 BLOCKS = get_size (device_name) / 1024;
705 if (!device_name || BLOCKS<10) {
706 usage();
707 }
708#ifdef HAVE_MINIX2
709 if (version2) {
710 if (namelen == 14)
711 magic = MINIX2_SUPER_MAGIC;
712 else
713 magic = MINIX2_SUPER_MAGIC2;
714 } else
715#endif
716 if (BLOCKS > 65535)
717 BLOCKS = 65535;
718 check_mount(); /* is it already mounted? */
719 tmp = root_block;
720 *(short *)tmp = 1;
721 strcpy(tmp+2,".");
722 tmp += dirsize;
723 *(short *)tmp = 1;
724 strcpy(tmp+2,"..");
725 tmp += dirsize;
726 *(short *)tmp = 2;
727 strcpy(tmp+2,".badblocks");
728 DEV = open(device_name,O_RDWR );
729 if (DEV<0)
730 die(_("unable to open %s"));
731 if (fstat(DEV,&statbuf)<0)
732 die(_("unable to stat %s"));
733 if (!S_ISBLK(statbuf.st_mode))
734 check=0;
735 else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
736 die(_("will not try to make filesystem on '%s'"));
737 setup_tables();
738 if (check)
739 check_blocks();
740 else if (listfile)
741 get_list_blocks(listfile);
742#ifdef HAVE_MINIX2
743 if (version2) {
744 make_root_inode2 ();
745 make_bad_inode2 ();
746 } else
747#endif
748 {
749 make_root_inode();
750 make_bad_inode();
751 }
752 mark_good_blocks();
753 write_tables();
754 return 0;
755}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-18 12:27:32 +0000