disk-utils/mkfs.minix.c

   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
  80 #ifdef MINIX2_SUPER_MAGIC2
  81 #define HAVE_MINIX2 1
  82 #endif
  83
  84 #ifndef __GNUC__
  85 #error "needs gcc for the bitop-__asm__'s"
  86 #endif
  87
  88 #ifndef __linux__
  89 #define volatile
  90 #endif
  91
  92 #define MINIX_ROOT_INO 1
  93 #define MINIX_BAD_INO 2
  94
  95 #define TEST_BUFFER_BLOCKS 16
  96 #define MAX_GOOD_BLOCKS 512
  97
  98 #define UPPER(size,n) ((size+((n)-1))/(n))
  99 #define INODE_SIZE (sizeof(struct minix_inode))
 100 #ifdef HAVE_MINIX2
 101 #define INODE_SIZE2 (sizeof(struct minix2_inode))
 102 #define INODE_BLOCKS UPPER(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \
 103                                     : MINIX_INODES_PER_BLOCK))
 104 #else
 105 #define INODE_BLOCKS UPPER(INODES, (MINIX_INODES_PER_BLOCK))
 106 #endif
 107 #define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
 108
 109 #define BITS_PER_BLOCK (BLOCK_SIZE<<3)
 110
 111 static char * program_name = "mkfs";
 112 static char * device_name = NULL;
 113 static int DEV = -1;
 114 static long BLOCKS = 0;
 115 static int check = 0;
 116 static int badblocks = 0;
 117 static int namelen = 30;        /* default (changed to 30, per Linus's
 118                                    suggestion, Sun Nov 21 08:05:07 1993) */
 119 static int dirsize = 32;
 120 static int magic = MINIX_SUPER_MAGIC2;
 121 static int version2 = 0;
 122
 123 static char root_block[BLOCK_SIZE] = "\0";
 124
 125 static char * inode_buffer = NULL;
 126 #define Inode (((struct minix_inode *) inode_buffer)-1)
 127 #ifdef HAVE_MINIX2
 128 #define Inode2 (((struct minix2_inode *) inode_buffer)-1)
 129 #endif
 130 static char super_block_buffer[BLOCK_SIZE];
 131 static char boot_block_buffer[512];
 132 #define Super (*(struct minix_super_block *)super_block_buffer)
 133 #define INODES ((unsigned long)Super.s_ninodes)
 134 #ifdef HAVE_MINIX2
 135 #define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones))
 136 #else
 137 #define ZONES ((unsigned long)(Super.s_nzones))
 138 #endif
 139 #define IMAPS ((unsigned long)Super.s_imap_blocks)
 140 #define ZMAPS ((unsigned long)Super.s_zmap_blocks)
 141 #define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
 142 #define ZONESIZE ((unsigned long)Super.s_log_zone_size)
 143 #define MAXSIZE ((unsigned long)Super.s_max_size)
 144 #define MAGIC (Super.s_magic)
 145 #define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
 146
 147 static char *inode_map;
 148 static char *zone_map;
 149
 150 static unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
 151 static int used_good_blocks = 0;
 152 static unsigned long req_nr_inodes = 0;
 153
 154 #include "bitops.h"
 155
 156 #define inode_in_use(x) (bit(inode_map,(x)))
 157 #define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
 158
 159 #define mark_inode(x) (setbit(inode_map,(x)))
 160 #define unmark_inode(x) (clrbit(inode_map,(x)))
 161
 162 #define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
 163 #define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
 164
 165 /*
 166  * Volatile to let gcc know that this doesn't return. When trying
 167  * to compile this under minix, volatile gives a warning, as
 168  * exit() isn't defined as volatile under minix.
 169  */
 170 volatile void fatal_error(const char * fmt_string,int status)
 171 {
 172         fprintf(stderr,fmt_string,program_name,device_name);
 173         exit(status);
 174 }
 175
 176 volatile void die(char *str) {
 177         fprintf(stderr, "%s: %s\n", program_name, str);
 178         exit(8);
 179 }
 180
 181 volatile void usage()
 182 {
 183         fprintf(stderr, "%s (%s)\n", program_name, util_linux_version);
 184         fprintf(stderr,
 185                 _("Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]\n"),
 186                   program_name);
 187         exit(16);
 188 }
 189
 190 /*
 191  * Check to make certain that our new filesystem won't be created on
 192  * an already mounted partition.  Code adapted from mke2fs, Copyright
 193  * (C) 1994 Theodore Ts'o.  Also licensed under GPL.
 194  */
 195 static void check_mount(void)
 196 {
 197         FILE * f;
 198         struct mntent * mnt;
 199
 200         if ((f = setmntent (MOUNTED, "r")) == NULL)
 201                 return;
 202         while ((mnt = getmntent (f)) != NULL)
 203                 if (strcmp (device_name, mnt->mnt_fsname) == 0)
 204                         break;
 205         endmntent (f);
 206         if (!mnt)
 207                 return;
 208
 209         die(_("%s is mounted; will not make a filesystem here!"));
 210 }
 211
 212 static long valid_offset (int fd, int offset)
 213 {
 214         char ch;
 215
 216         if (lseek (fd, offset, 0) < 0)
 217                 return 0;
 218         if (read (fd, &ch, 1) < 1)
 219                 return 0;
 220         return 1;
 221 }
 222
 223 static int count_blocks (int fd)
 224 {
 225         int high, low;
 226
 227         low = 0;
 228         for (high = 1; valid_offset (fd, high); high *= 2)
 229                 low = high;
 230         while (low < high - 1)
 231         {
 232                 const int mid = (low + high) / 2;
 233
 234                 if (valid_offset (fd, mid))
 235                         low = mid;
 236                 else
 237                         high = mid;
 238         }
 239         valid_offset (fd, 0);
 240         return (low + 1);
 241 }
 242
 243 static int get_size(const char  *file)
 244 {
 245         int     fd;
 246         long    size;
 247
 248         fd = open(file, O_RDWR);
 249         if (fd < 0) {
 250                 perror(file);
 251                 exit(1);
 252         }
 253         if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
 254                 close(fd);
 255                 return (size * 512);
 256         }
 257
 258         size = count_blocks(fd);
 259         close(fd);
 260         return size;
 261 }
 262
 263 void write_tables(void)
 264 {
 265         /* Mark the super block valid. */
 266         Super.s_state |= MINIX_VALID_FS;
 267         Super.s_state &= ~MINIX_ERROR_FS;
 268
 269         if (lseek(DEV, 0, SEEK_SET))
 270                 die(_("seek to boot block failed in write_tables"));
 271         if (512 != write(DEV, boot_block_buffer, 512))
 272                 die(_("unable to clear boot sector"));
 273         if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
 274                 die(_("seek failed in write_tables"));
 275         if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
 276                 die(_("unable to write super-block"));
 277         if (IMAPS*BLOCK_SIZE != write(DEV,inode_map,IMAPS*BLOCK_SIZE))
 278                 die(_("unable to write inode map"));
 279         if (ZMAPS*BLOCK_SIZE != write(DEV,zone_map,ZMAPS*BLOCK_SIZE))
 280                 die(_("unable to write zone map"));
 281         if (INODE_BUFFER_SIZE != write(DEV,inode_buffer,INODE_BUFFER_SIZE))
 282                 die(_("unable to write inodes"));
 283
 284 }
 285
 286 void write_block(int blk, char * buffer)
 287 {
 288         if (blk*BLOCK_SIZE != lseek(DEV, blk*BLOCK_SIZE, SEEK_SET))
 289                 die(_("seek failed in write_block"));
 290         if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
 291                 die(_("write failed in write_block"));
 292 }
 293
 294 int get_free_block(void)
 295 {
 296         int blk;
 297
 298         if (used_good_blocks+1 >= MAX_GOOD_BLOCKS)
 299                 die(_("too many bad blocks"));
 300         if (used_good_blocks)
 301                 blk = good_blocks_table[used_good_blocks-1]+1;
 302         else
 303                 blk = FIRSTZONE;
 304         while (blk < ZONES && zone_in_use(blk))
 305                 blk++;
 306         if (blk >= ZONES)
 307                 die(_("not enough good blocks"));
 308         good_blocks_table[used_good_blocks] = blk;
 309         used_good_blocks++;
 310         return blk;
 311 }
 312
 313 void mark_good_blocks(void)
 314 {
 315         int blk;
 316
 317         for (blk=0 ; blk < used_good_blocks ; blk++)
 318                 mark_zone(good_blocks_table[blk]);
 319 }
 320
 321 inline int next(int zone)
 322 {
 323         if (!zone)
 324                 zone = FIRSTZONE-1;
 325         while (++zone < ZONES)
 326                 if (zone_in_use(zone))
 327                         return zone;
 328         return 0;
 329 }
 330
 331 void make_bad_inode(void)
 332 {
 333         struct minix_inode * inode = &Inode[MINIX_BAD_INO];
 334         int i,j,zone;
 335         int ind=0,dind=0;
 336         unsigned short ind_block[BLOCK_SIZE>>1];
 337         unsigned short dind_block[BLOCK_SIZE>>1];
 338
 339 #define NEXT_BAD (zone = next(zone))
 340
 341         if (!badblocks)
 342                 return;
 343         mark_inode(MINIX_BAD_INO);
 344         inode->i_nlinks = 1;
 345         inode->i_time = time(NULL);
 346         inode->i_mode = S_IFREG + 0000;
 347         inode->i_size = badblocks*BLOCK_SIZE;
 348         zone = next(0);
 349         for (i=0 ; i<7 ; i++) {
 350                 inode->i_zone[i] = zone;
 351                 if (!NEXT_BAD)
 352                         goto end_bad;
 353         }
 354         inode->i_zone[7] = ind = get_free_block();
 355         memset(ind_block,0,BLOCK_SIZE);
 356         for (i=0 ; i<512 ; i++) {
 357                 ind_block[i] = zone;
 358                 if (!NEXT_BAD)
 359                         goto end_bad;
 360         }
 361         inode->i_zone[8] = dind = get_free_block();
 362         memset(dind_block,0,BLOCK_SIZE);
 363         for (i=0 ; i<512 ; i++) {
 364                 write_block(ind,(char *) ind_block);
 365                 dind_block[i] = ind = get_free_block();
 366                 memset(ind_block,0,BLOCK_SIZE);
 367                 for (j=0 ; j<512 ; j++) {
 368                         ind_block[j] = zone;
 369                         if (!NEXT_BAD)
 370                                 goto end_bad;
 371                 }
 372         }
 373         die(_("too many bad blocks"));
 374 end_bad:
 375         if (ind)
 376                 write_block(ind, (char *) ind_block);
 377         if (dind)
 378                 write_block(dind, (char *) dind_block);
 379 }
 380
 381 #ifdef HAVE_MINIX2
 382 void
 383 make_bad_inode2 (void)
 384 {
 385         struct minix2_inode *inode = &Inode2[MINIX_BAD_INO];
 386         int i, j, zone;
 387         int ind = 0, dind = 0;
 388         unsigned long ind_block[BLOCK_SIZE >> 2];
 389         unsigned long dind_block[BLOCK_SIZE >> 2];
 390
 391         if (!badblocks)
 392                 return;
 393         mark_inode (MINIX_BAD_INO);
 394         inode->i_nlinks = 1;
 395         inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
 396         inode->i_mode = S_IFREG + 0000;
 397         inode->i_size = badblocks * BLOCK_SIZE;
 398         zone = next (0);
 399         for (i = 0; i < 7; i++) {
 400                 inode->i_zone[i] = zone;
 401                 if (!NEXT_BAD)
 402                         goto end_bad;
 403         }
 404         inode->i_zone[7] = ind = get_free_block ();
 405         memset (ind_block, 0, BLOCK_SIZE);
 406         for (i = 0; i < 256; i++) {
 407                 ind_block[i] = zone;
 408                 if (!NEXT_BAD)
 409                         goto end_bad;
 410         }
 411         inode->i_zone[8] = dind = get_free_block ();
 412         memset (dind_block, 0, BLOCK_SIZE);
 413         for (i = 0; i < 256; i++) {
 414                 write_block (ind, (char *) ind_block);
 415                 dind_block[i] = ind = get_free_block ();
 416                 memset (ind_block, 0, BLOCK_SIZE);
 417                 for (j = 0; j < 256; j++) {
 418                         ind_block[j] = zone;
 419                         if (!NEXT_BAD)
 420                                 goto end_bad;
 421                 }
 422         }
 423         /* Could make triple indirect block here */
 424         die (_("too many bad blocks"));
 425  end_bad:
 426         if (ind)
 427                 write_block (ind, (char *) ind_block);
 428         if (dind)
 429                 write_block (dind, (char *) dind_block);
 430 }
 431 #endif
 432
 433 void make_root_inode(void)
 434 {
 435         struct minix_inode * inode = &Inode[MINIX_ROOT_INO];
 436
 437         mark_inode(MINIX_ROOT_INO);
 438         inode->i_zone[0] = get_free_block();
 439         inode->i_nlinks = 2;
 440         inode->i_time = time(NULL);
 441         if (badblocks)
 442                 inode->i_size = 3*dirsize;
 443         else {
 444                 root_block[2*dirsize] = '\0';
 445                 root_block[2*dirsize+1] = '\0';
 446                 inode->i_size = 2*dirsize;
 447         }
 448         inode->i_mode = S_IFDIR + 0755;
 449         inode->i_uid = getuid();
 450         if (inode->i_uid)
 451                 inode->i_gid = getgid();
 452         write_block(inode->i_zone[0],root_block);
 453 }
 454
 455 #ifdef HAVE_MINIX2
 456 void
 457 make_root_inode2 (void)
 458 {
 459         struct minix2_inode *inode = &Inode2[MINIX_ROOT_INO];
 460
 461         mark_inode (MINIX_ROOT_INO);
 462         inode->i_zone[0] = get_free_block ();
 463         inode->i_nlinks = 2;
 464         inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
 465         if (badblocks)
 466                 inode->i_size = 3 * dirsize;
 467         else {
 468                 root_block[2 * dirsize] = '\0';
 469                 root_block[2 * dirsize + 1] = '\0';
 470                 inode->i_size = 2 * dirsize;
 471         }
 472         inode->i_mode = S_IFDIR + 0755;
 473         inode->i_uid = getuid();
 474         if (inode->i_uid)
 475                 inode->i_gid = getgid();
 476         write_block (inode->i_zone[0], root_block);
 477 }
 478 #endif
 479
 480 void setup_tables(void)
 481 {
 482         int i;
 483         unsigned long inodes;
 484
 485         memset(super_block_buffer,0,BLOCK_SIZE);
 486         memset(boot_block_buffer,0,512);
 487         MAGIC = magic;
 488         ZONESIZE = 0;
 489         MAXSIZE = version2 ? 0x7fffffff : (7+512+512*512)*1024;
 490         ZONES = BLOCKS;
 491
 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 = UPPER(BLOCKS - (1+IMAPS+INODE_BLOCKS), BITS_PER_BLOCK+1);
 511         /* The old code here
 512          * ZMAPS = 0;
 513          * while (ZMAPS != UPPER(BLOCKS - NORM_FIRSTZONE + 1,BITS_PER_BLOCK))
 514          *        ZMAPS = UPPER(BLOCKS - NORM_FIRSTZONE + 1,BITS_PER_BLOCK);
 515          * was no good, since it may loop. - aeb
 516          */
 517         FIRSTZONE = NORM_FIRSTZONE;
 518         inode_map = malloc(IMAPS * BLOCK_SIZE);
 519         zone_map = malloc(ZMAPS * BLOCK_SIZE);
 520         if (!inode_map || !zone_map)
 521                 die(_("unable to allocate buffers for maps"));
 522         memset(inode_map,0xff,IMAPS * BLOCK_SIZE);
 523         memset(zone_map,0xff,ZMAPS * BLOCK_SIZE);
 524         for (i = FIRSTZONE ; i<ZONES ; i++)
 525                 unmark_zone(i);
 526         for (i = MINIX_ROOT_INO ; i<=INODES ; i++)
 527                 unmark_inode(i);
 528         inode_buffer = malloc(INODE_BUFFER_SIZE);
 529         if (!inode_buffer)
 530                 die(_("unable to allocate buffer for inodes"));
 531         memset(inode_buffer,0,INODE_BUFFER_SIZE);
 532         printf(_("%ld inodes\n"),INODES);
 533         printf(_("%ld blocks\n"),ZONES);
 534         printf(_("Firstdatazone=%ld (%ld)\n"),FIRSTZONE,NORM_FIRSTZONE);
 535         printf(_("Zonesize=%d\n"),BLOCK_SIZE<<ZONESIZE);
 536         printf(_("Maxsize=%ld\n\n"),MAXSIZE);
 537 }
 538
 539 /*
 540  * Perform a test of a block; return the number of
 541  * blocks readable/writeable.
 542  */
 543 long do_check(char * buffer, int try, unsigned int current_block)
 544 {
 545         long got;
 546
 547         /* Seek to the correct loc. */
 548         if (lseek(DEV, current_block * BLOCK_SIZE, SEEK_SET) !=
 549                        current_block * BLOCK_SIZE ) {
 550                  die(_("seek failed during testing of blocks"));
 551         }
 552
 553
 554         /* Try the read */
 555         got = read(DEV, buffer, try * BLOCK_SIZE);
 556         if (got < 0) got = 0;
 557         if (got & (BLOCK_SIZE - 1 )) {
 558                 printf(_("Weird values in do_check: probably bugs\n"));
 559         }
 560         got /= BLOCK_SIZE;
 561         return got;
 562 }
 563
 564 static unsigned int currently_testing = 0;
 565
 566 void alarm_intr(int alnum)
 567 {
 568         if (currently_testing >= ZONES)
 569                 return;
 570         signal(SIGALRM,alarm_intr);
 571         alarm(5);
 572         if (!currently_testing)
 573                 return;
 574         printf("%d ...", currently_testing);
 575         fflush(stdout);
 576 }
 577
 578 void check_blocks(void)
 579 {
 580         int try,got;
 581         static char buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
 582
 583         currently_testing=0;
 584         signal(SIGALRM,alarm_intr);
 585         alarm(5);
 586         while (currently_testing < ZONES) {
 587                 if (lseek(DEV,currently_testing*BLOCK_SIZE,SEEK_SET) !=
 588                 currently_testing*BLOCK_SIZE)
 589                         die(_("seek failed in check_blocks"));
 590                 try = TEST_BUFFER_BLOCKS;
 591                 if (currently_testing + try > ZONES)
 592                         try = ZONES-currently_testing;
 593                 got = do_check(buffer, try, currently_testing);
 594                 currently_testing += got;
 595                 if (got == try)
 596                         continue;
 597                 if (currently_testing < FIRSTZONE)
 598                         die(_("bad blocks before data-area: cannot make fs"));
 599                 mark_zone(currently_testing);
 600                 badblocks++;
 601                 currently_testing++;
 602         }
 603         if (badblocks > 1)
 604                 printf(_("%d bad blocks\n"), badblocks);
 605         else if (badblocks == 1)
 606                 printf(_("one bad block\n"));
 607 }
 608
 609 void get_list_blocks(filename)
 610 char *filename;
 611
 612 {
 613   FILE *listfile;
 614   unsigned long blockno;
 615
 616   listfile=fopen(filename,"r");
 617   if(listfile == (FILE *)NULL) {
 618     die(_("can't open file of bad blocks"));
 619   }
 620   while(!feof(listfile)) {
 621     fscanf(listfile,"%ld\n", &blockno);
 622     mark_zone(blockno);
 623     badblocks++;
 624   }
 625   if(badblocks > 1)
 626     printf(_("%d bad blocks\n"), badblocks);
 627   else if (badblocks == 1)
 628     printf(_("one bad block\n"));
 629 }
 630
 631 int main(int argc, char ** argv)
 632 {
 633   int i;
 634   char * tmp;
 635   struct stat statbuf;
 636   char * listfile = NULL;
 637   char * p;
 638
 639   if (argc && *argv)
 640     program_name = *argv;
 641   if ((p = strrchr(program_name, '/')) != NULL)
 642     program_name = p+1;
 643
 644   setlocale(LC_ALL, "");
 645   bindtextdomain(PACKAGE, LOCALEDIR);
 646   textdomain(PACKAGE);
 647
 648   if (argc == 2 &&
 649       (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) {
 650           printf(_("%s from %s\n"), program_name, util_linux_version);
 651           exit(0);
 652   }
 653
 654   if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
 655     die(_("bad inode size"));
 656 #ifdef HAVE_MINIX2
 657   if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
 658     die(_("bad inode size"));
 659 #endif
 660   opterr = 0;
 661   while ((i = getopt(argc, argv, "ci:l:n:v")) != EOF)
 662     switch (i) {
 663       case 'c':
 664         check=1; break;
 665       case 'i':
 666         req_nr_inodes = (unsigned long) atol(optarg);
 667         break;
 668       case 'l':
 669         listfile = optarg; break;
 670       case 'n':
 671         i = strtoul(optarg,&tmp,0);
 672         if (*tmp)
 673           usage();
 674         if (i == 14)
 675           magic = MINIX_SUPER_MAGIC;
 676         else if (i == 30)
 677           magic = MINIX_SUPER_MAGIC2;
 678         else
 679           usage();
 680         namelen = i;
 681         dirsize = i+2;
 682         break;
 683       case 'v':
 684 #ifdef HAVE_MINIX2
 685         version2 = 1;
 686 #else
 687         fatal_error(_("%s: not compiled with minix v2 support\n"),-1);
 688 #endif
 689         break;
 690       default:
 691         usage();
 692     }
 693   argc -= optind;
 694   argv += optind;
 695   if (argc > 0 && !device_name) {
 696     device_name = argv[0];
 697     argc--;
 698     argv++;
 699   }
 700   if (argc > 0) {
 701      BLOCKS = strtol(argv[0],&tmp,0);
 702      if (*tmp) {
 703        printf(_("strtol error: number of blocks not specified"));
 704        usage();
 705      }
 706   }
 707
 708   if (device_name && !BLOCKS)
 709     BLOCKS = get_size (device_name) / 1024;
 710   if (!device_name || BLOCKS<10) {
 711     usage();
 712   }
 713 #ifdef HAVE_MINIX2
 714   if (version2) {
 715     if (namelen == 14)
 716       magic = MINIX2_SUPER_MAGIC;
 717     else
 718       magic = MINIX2_SUPER_MAGIC2;
 719   } else
 720 #endif
 721     if (BLOCKS > 65535)
 722       BLOCKS = 65535;
 723   check_mount();                /* is it already mounted? */
 724   tmp = root_block;
 725   *(short *)tmp = 1;
 726   strcpy(tmp+2,".");
 727   tmp += dirsize;
 728   *(short *)tmp = 1;
 729   strcpy(tmp+2,"..");
 730   tmp += dirsize;
 731   *(short *)tmp = 2;
 732   strcpy(tmp+2,".badblocks");
 733   DEV = open(device_name,O_RDWR );
 734   if (DEV<0)
 735     die(_("unable to open %s"));
 736   if (fstat(DEV,&statbuf)<0)
 737     die(_("unable to stat %s"));
 738   if (!S_ISBLK(statbuf.st_mode))
 739     check=0;
 740   else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
 741     die(_("will not try to make filesystem on '%s'"));
 742   setup_tables();
 743   if (check)
 744     check_blocks();
 745   else if (listfile)
 746     get_list_blocks(listfile);
 747 #ifdef HAVE_MINIX2
 748   if (version2) {
 749     make_root_inode2 ();
 750     make_bad_inode2 ();
 751   } else
 752 #endif
 753     {
 754       make_root_inode();
 755       make_bad_inode();
 756     }
 757   mark_good_blocks();
 758   write_tables();
 759   return 0;
 760 }