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 "minix.h"
  76 #include "nls.h"
  77
  78 #ifndef BLKGETSIZE
  79 #define BLKGETSIZE _IO(0x12,96)    /* return device size */
  80 #endif
  81
  82 #ifdef MINIX2_SUPER_MAGIC2
  83 #define HAVE_MINIX2 1
  84 #endif
  85
  86 #ifndef __GNUC__
  87 #error "needs gcc for the bitop-__asm__'s"
  88 #endif
  89
  90 #define MINIX_ROOT_INO 1
  91 #define MINIX_BAD_INO 2
  92
  93 #define TEST_BUFFER_BLOCKS 16
  94 #define MAX_GOOD_BLOCKS 512
  95
  96 #define UPPER(size,n) ((size+((n)-1))/(n))
  97 #define INODE_SIZE (sizeof(struct minix_inode))
  98 #ifdef HAVE_MINIX2
  99 #define INODE_SIZE2 (sizeof(struct minix2_inode))
 100 #define INODE_BLOCKS UPPER(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \
 101                                     : MINIX_INODES_PER_BLOCK))
 102 #else
 103 #define INODE_BLOCKS UPPER(INODES, (MINIX_INODES_PER_BLOCK))
 104 #endif
 105 #define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
 106
 107 #define BITS_PER_BLOCK (BLOCK_SIZE<<3)
 108
 109 static char * program_name = "mkfs";
 110 static char * device_name = NULL;
 111 static int DEV = -1;
 112 static long BLOCKS = 0;
 113 static int check = 0;
 114 static int badblocks = 0;
 115 static int namelen = 30;        /* default (changed to 30, per Linus's
 116                                    suggestion, Sun Nov 21 08:05:07 1993) */
 117 static int dirsize = 32;
 118 static int magic = MINIX_SUPER_MAGIC2;
 119 static int version2 = 0;
 120
 121 static char root_block[BLOCK_SIZE] = "\0";
 122
 123 static char * inode_buffer = NULL;
 124 #define Inode (((struct minix_inode *) inode_buffer)-1)
 125 #ifdef HAVE_MINIX2
 126 #define Inode2 (((struct minix2_inode *) inode_buffer)-1)
 127 #endif
 128 static char super_block_buffer[BLOCK_SIZE];
 129 static char boot_block_buffer[512];
 130 #define Super (*(struct minix_super_block *)super_block_buffer)
 131 #define INODES ((unsigned long)Super.s_ninodes)
 132 #ifdef HAVE_MINIX2
 133 #define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones))
 134 #else
 135 #define ZONES ((unsigned long)(Super.s_nzones))
 136 #endif
 137 #define IMAPS ((unsigned long)Super.s_imap_blocks)
 138 #define ZMAPS ((unsigned long)Super.s_zmap_blocks)
 139 #define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
 140 #define ZONESIZE ((unsigned long)Super.s_log_zone_size)
 141 #define MAXSIZE ((unsigned long)Super.s_max_size)
 142 #define MAGIC (Super.s_magic)
 143 #define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
 144
 145 static char *inode_map;
 146 static char *zone_map;
 147
 148 static unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
 149 static int used_good_blocks = 0;
 150 static unsigned long req_nr_inodes = 0;
 151
 152 #include "bitops.h"
 153
 154 #define inode_in_use(x) (bit(inode_map,(x)))
 155 #define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
 156
 157 #define mark_inode(x) (setbit(inode_map,(x)))
 158 #define unmark_inode(x) (clrbit(inode_map,(x)))
 159
 160 #define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
 161 #define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
 162
 163 static void
 164 fatal_error(const char * fmt_string,int status) {
 165         fprintf(stderr,fmt_string,program_name,device_name);
 166         exit(status);
 167 }
 168
 169 static void
 170 die(char *str) {
 171         fprintf(stderr, "%s: %s\n", program_name, str);
 172         exit(8);
 173 }
 174
 175 static void
 176 usage(void) {
 177         fprintf(stderr, "%s (%s)\n", program_name, util_linux_version);
 178         fprintf(stderr,
 179                 _("Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]\n"),
 180                   program_name);
 181         exit(16);
 182 }
 183
 184 /*
 185  * Check to make certain that our new filesystem won't be created on
 186  * an already mounted partition.  Code adapted from mke2fs, Copyright
 187  * (C) 1994 Theodore Ts'o.  Also licensed under GPL.
 188  */
 189 static void
 190 check_mount(void) {
 191         FILE * f;
 192         struct mntent * mnt;
 193
 194         if ((f = setmntent (MOUNTED, "r")) == NULL)
 195                 return;
 196         while ((mnt = getmntent (f)) != NULL)
 197                 if (strcmp (device_name, mnt->mnt_fsname) == 0)
 198                         break;
 199         endmntent (f);
 200         if (!mnt)
 201                 return;
 202
 203         die(_("%s is mounted; will not make a filesystem here!"));
 204 }
 205
 206 static long
 207 valid_offset (int fd, int offset) {
 208         char ch;
 209
 210         if (lseek (fd, offset, 0) < 0)
 211                 return 0;
 212         if (read (fd, &ch, 1) < 1)
 213                 return 0;
 214         return 1;
 215 }
 216
 217 static int
 218 count_blocks (int fd) {
 219         int high, low;
 220
 221         low = 0;
 222         for (high = 1; valid_offset (fd, high); high *= 2)
 223                 low = high;
 224         while (low < high - 1)
 225         {
 226                 const int mid = (low + high) / 2;
 227
 228                 if (valid_offset (fd, mid))
 229                         low = mid;
 230                 else
 231                         high = mid;
 232         }
 233         valid_offset (fd, 0);
 234         return (low + 1);
 235 }
 236
 237 static int
 238 get_size(const char  *file) {
 239         int     fd;
 240         long    size;
 241
 242         fd = open(file, O_RDWR);
 243         if (fd < 0) {
 244                 perror(file);
 245                 exit(1);
 246         }
 247         if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
 248                 close(fd);
 249                 return (size * 512);
 250         }
 251
 252         size = count_blocks(fd);
 253         close(fd);
 254         return size;
 255 }
 256
 257 static void
 258 write_tables(void) {
 259         /* Mark the super block valid. */
 260         Super.s_state |= MINIX_VALID_FS;
 261         Super.s_state &= ~MINIX_ERROR_FS;
 262
 263         if (lseek(DEV, 0, SEEK_SET))
 264                 die(_("seek to boot block failed in write_tables"));
 265         if (512 != write(DEV, boot_block_buffer, 512))
 266                 die(_("unable to clear boot sector"));
 267         if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
 268                 die(_("seek failed in write_tables"));
 269         if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
 270                 die(_("unable to write super-block"));
 271         if (IMAPS*BLOCK_SIZE != write(DEV,inode_map,IMAPS*BLOCK_SIZE))
 272                 die(_("unable to write inode map"));
 273         if (ZMAPS*BLOCK_SIZE != write(DEV,zone_map,ZMAPS*BLOCK_SIZE))
 274                 die(_("unable to write zone map"));
 275         if (INODE_BUFFER_SIZE != write(DEV,inode_buffer,INODE_BUFFER_SIZE))
 276                 die(_("unable to write inodes"));
 277
 278 }
 279
 280 static void
 281 write_block(int blk, char * buffer) {
 282         if (blk*BLOCK_SIZE != lseek(DEV, blk*BLOCK_SIZE, SEEK_SET))
 283                 die(_("seek failed in write_block"));
 284         if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
 285                 die(_("write failed in write_block"));
 286 }
 287
 288 static int
 289 get_free_block(void) {
 290         int blk;
 291
 292         if (used_good_blocks+1 >= MAX_GOOD_BLOCKS)
 293                 die(_("too many bad blocks"));
 294         if (used_good_blocks)
 295                 blk = good_blocks_table[used_good_blocks-1]+1;
 296         else
 297                 blk = FIRSTZONE;
 298         while (blk < ZONES && zone_in_use(blk))
 299                 blk++;
 300         if (blk >= ZONES)
 301                 die(_("not enough good blocks"));
 302         good_blocks_table[used_good_blocks] = blk;
 303         used_good_blocks++;
 304         return blk;
 305 }
 306
 307 static void
 308 mark_good_blocks(void) {
 309         int blk;
 310
 311         for (blk=0 ; blk < used_good_blocks ; blk++)
 312                 mark_zone(good_blocks_table[blk]);
 313 }
 314
 315 static inline int
 316 next(int zone) {
 317         if (!zone)
 318                 zone = FIRSTZONE-1;
 319         while (++zone < ZONES)
 320                 if (zone_in_use(zone))
 321                         return zone;
 322         return 0;
 323 }
 324
 325 static void
 326 make_bad_inode(void) {
 327         struct minix_inode * inode = &Inode[MINIX_BAD_INO];
 328         int i,j,zone;
 329         int ind=0,dind=0;
 330         unsigned short ind_block[BLOCK_SIZE>>1];
 331         unsigned short dind_block[BLOCK_SIZE>>1];
 332
 333 #define NEXT_BAD (zone = next(zone))
 334
 335         if (!badblocks)
 336                 return;
 337         mark_inode(MINIX_BAD_INO);
 338         inode->i_nlinks = 1;
 339         inode->i_time = time(NULL);
 340         inode->i_mode = S_IFREG + 0000;
 341         inode->i_size = badblocks*BLOCK_SIZE;
 342         zone = next(0);
 343         for (i=0 ; i<7 ; i++) {
 344                 inode->i_zone[i] = zone;
 345                 if (!NEXT_BAD)
 346                         goto end_bad;
 347         }
 348         inode->i_zone[7] = ind = get_free_block();
 349         memset(ind_block,0,BLOCK_SIZE);
 350         for (i=0 ; i<512 ; i++) {
 351                 ind_block[i] = zone;
 352                 if (!NEXT_BAD)
 353                         goto end_bad;
 354         }
 355         inode->i_zone[8] = dind = get_free_block();
 356         memset(dind_block,0,BLOCK_SIZE);
 357         for (i=0 ; i<512 ; i++) {
 358                 write_block(ind,(char *) ind_block);
 359                 dind_block[i] = ind = get_free_block();
 360                 memset(ind_block,0,BLOCK_SIZE);
 361                 for (j=0 ; j<512 ; j++) {
 362                         ind_block[j] = zone;
 363                         if (!NEXT_BAD)
 364                                 goto end_bad;
 365                 }
 366         }
 367         die(_("too many bad blocks"));
 368 end_bad:
 369         if (ind)
 370                 write_block(ind, (char *) ind_block);
 371         if (dind)
 372                 write_block(dind, (char *) dind_block);
 373 }
 374
 375 #ifdef HAVE_MINIX2
 376 static void
 377 make_bad_inode2 (void) {
 378         struct minix2_inode *inode = &Inode2[MINIX_BAD_INO];
 379         int i, j, zone;
 380         int ind = 0, dind = 0;
 381         unsigned long ind_block[BLOCK_SIZE >> 2];
 382         unsigned long dind_block[BLOCK_SIZE >> 2];
 383
 384         if (!badblocks)
 385                 return;
 386         mark_inode (MINIX_BAD_INO);
 387         inode->i_nlinks = 1;
 388         inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
 389         inode->i_mode = S_IFREG + 0000;
 390         inode->i_size = badblocks * BLOCK_SIZE;
 391         zone = next (0);
 392         for (i = 0; i < 7; i++) {
 393                 inode->i_zone[i] = zone;
 394                 if (!NEXT_BAD)
 395                         goto end_bad;
 396         }
 397         inode->i_zone[7] = ind = get_free_block ();
 398         memset (ind_block, 0, BLOCK_SIZE);
 399         for (i = 0; i < 256; i++) {
 400                 ind_block[i] = zone;
 401                 if (!NEXT_BAD)
 402                         goto end_bad;
 403         }
 404         inode->i_zone[8] = dind = get_free_block ();
 405         memset (dind_block, 0, BLOCK_SIZE);
 406         for (i = 0; i < 256; i++) {
 407                 write_block (ind, (char *) ind_block);
 408                 dind_block[i] = ind = get_free_block ();
 409                 memset (ind_block, 0, BLOCK_SIZE);
 410                 for (j = 0; j < 256; j++) {
 411                         ind_block[j] = zone;
 412                         if (!NEXT_BAD)
 413                                 goto end_bad;
 414                 }
 415         }
 416         /* Could make triple indirect block here */
 417         die (_("too many bad blocks"));
 418  end_bad:
 419         if (ind)
 420                 write_block (ind, (char *) ind_block);
 421         if (dind)
 422                 write_block (dind, (char *) dind_block);
 423 }
 424 #endif
 425
 426 static void
 427 make_root_inode(void) {
 428         struct minix_inode * inode = &Inode[MINIX_ROOT_INO];
 429
 430         mark_inode(MINIX_ROOT_INO);
 431         inode->i_zone[0] = get_free_block();
 432         inode->i_nlinks = 2;
 433         inode->i_time = time(NULL);
 434         if (badblocks)
 435                 inode->i_size = 3*dirsize;
 436         else {
 437                 root_block[2*dirsize] = '\0';
 438                 root_block[2*dirsize+1] = '\0';
 439                 inode->i_size = 2*dirsize;
 440         }
 441         inode->i_mode = S_IFDIR + 0755;
 442         inode->i_uid = getuid();
 443         if (inode->i_uid)
 444                 inode->i_gid = getgid();
 445         write_block(inode->i_zone[0],root_block);
 446 }
 447
 448 #ifdef HAVE_MINIX2
 449 static void
 450 make_root_inode2 (void) {
 451         struct minix2_inode *inode = &Inode2[MINIX_ROOT_INO];
 452
 453         mark_inode (MINIX_ROOT_INO);
 454         inode->i_zone[0] = get_free_block ();
 455         inode->i_nlinks = 2;
 456         inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
 457         if (badblocks)
 458                 inode->i_size = 3 * dirsize;
 459         else {
 460                 root_block[2 * dirsize] = '\0';
 461                 root_block[2 * dirsize + 1] = '\0';
 462                 inode->i_size = 2 * dirsize;
 463         }
 464         inode->i_mode = S_IFDIR + 0755;
 465         inode->i_uid = getuid();
 466         if (inode->i_uid)
 467                 inode->i_gid = getgid();
 468         write_block (inode->i_zone[0], root_block);
 469 }
 470 #endif
 471
 472 static void
 473 setup_tables(void) {
 474         int i;
 475         unsigned long inodes;
 476
 477         memset(super_block_buffer,0,BLOCK_SIZE);
 478         memset(boot_block_buffer,0,512);
 479         MAGIC = magic;
 480         ZONESIZE = 0;
 481         MAXSIZE = version2 ? 0x7fffffff : (7+512+512*512)*1024;
 482         ZONES = BLOCKS;
 483
 484 /* some magic nrs: 1 inode / 3 blocks */
 485         if ( req_nr_inodes == 0 )
 486                 inodes = BLOCKS/3;
 487         else
 488                 inodes = req_nr_inodes;
 489         /* Round up inode count to fill block size */
 490 #ifdef HAVE_MINIX2
 491         if (version2)
 492                 inodes = ((inodes + MINIX2_INODES_PER_BLOCK - 1) &
 493                           ~(MINIX2_INODES_PER_BLOCK - 1));
 494         else
 495 #endif
 496                 inodes = ((inodes + MINIX_INODES_PER_BLOCK - 1) &
 497                           ~(MINIX_INODES_PER_BLOCK - 1));
 498         if (inodes > 65535)
 499                 inodes = 65535;
 500         INODES = inodes;
 501         IMAPS = UPPER(INODES + 1,BITS_PER_BLOCK);
 502         ZMAPS = UPPER(BLOCKS - (1+IMAPS+INODE_BLOCKS), BITS_PER_BLOCK+1);
 503         /* The old code here
 504          * ZMAPS = 0;
 505          * while (ZMAPS != UPPER(BLOCKS - NORM_FIRSTZONE + 1,BITS_PER_BLOCK))
 506          *        ZMAPS = UPPER(BLOCKS - NORM_FIRSTZONE + 1,BITS_PER_BLOCK);
 507          * was no good, since it may loop. - aeb
 508          */
 509         FIRSTZONE = NORM_FIRSTZONE;
 510         inode_map = malloc(IMAPS * BLOCK_SIZE);
 511         zone_map = malloc(ZMAPS * BLOCK_SIZE);
 512         if (!inode_map || !zone_map)
 513                 die(_("unable to allocate buffers for maps"));
 514         memset(inode_map,0xff,IMAPS * BLOCK_SIZE);
 515         memset(zone_map,0xff,ZMAPS * BLOCK_SIZE);
 516         for (i = FIRSTZONE ; i<ZONES ; i++)
 517                 unmark_zone(i);
 518         for (i = MINIX_ROOT_INO ; i<=INODES ; i++)
 519                 unmark_inode(i);
 520         inode_buffer = malloc(INODE_BUFFER_SIZE);
 521         if (!inode_buffer)
 522                 die(_("unable to allocate buffer for inodes"));
 523         memset(inode_buffer,0,INODE_BUFFER_SIZE);
 524         printf(_("%ld inodes\n"),INODES);
 525         printf(_("%ld blocks\n"),ZONES);
 526         printf(_("Firstdatazone=%ld (%ld)\n"),FIRSTZONE,NORM_FIRSTZONE);
 527         printf(_("Zonesize=%d\n"),BLOCK_SIZE<<ZONESIZE);
 528         printf(_("Maxsize=%ld\n\n"),MAXSIZE);
 529 }
 530
 531 /*
 532  * Perform a test of a block; return the number of
 533  * blocks readable/writeable.
 534  */
 535 static long
 536 do_check(char * buffer, int try, unsigned int current_block) {
 537         long got;
 538
 539         /* Seek to the correct loc. */
 540         if (lseek(DEV, current_block * BLOCK_SIZE, SEEK_SET) !=
 541                        current_block * BLOCK_SIZE ) {
 542                  die(_("seek failed during testing of blocks"));
 543         }
 544
 545
 546         /* Try the read */
 547         got = read(DEV, buffer, try * BLOCK_SIZE);
 548         if (got < 0) got = 0;
 549         if (got & (BLOCK_SIZE - 1 )) {
 550                 printf(_("Weird values in do_check: probably bugs\n"));
 551         }
 552         got /= BLOCK_SIZE;
 553         return got;
 554 }
 555
 556 static unsigned int currently_testing = 0;
 557
 558 static void
 559 alarm_intr(int alnum) {
 560         if (currently_testing >= ZONES)
 561                 return;
 562         signal(SIGALRM,alarm_intr);
 563         alarm(5);
 564         if (!currently_testing)
 565                 return;
 566         printf("%d ...", currently_testing);
 567         fflush(stdout);
 568 }
 569
 570 static void
 571 check_blocks(void) {
 572         int try,got;
 573         static char buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
 574
 575         currently_testing=0;
 576         signal(SIGALRM,alarm_intr);
 577         alarm(5);
 578         while (currently_testing < ZONES) {
 579                 if (lseek(DEV,currently_testing*BLOCK_SIZE,SEEK_SET) !=
 580                 currently_testing*BLOCK_SIZE)
 581                         die(_("seek failed in check_blocks"));
 582                 try = TEST_BUFFER_BLOCKS;
 583                 if (currently_testing + try > ZONES)
 584                         try = ZONES-currently_testing;
 585                 got = do_check(buffer, try, currently_testing);
 586                 currently_testing += got;
 587                 if (got == try)
 588                         continue;
 589                 if (currently_testing < FIRSTZONE)
 590                         die(_("bad blocks before data-area: cannot make fs"));
 591                 mark_zone(currently_testing);
 592                 badblocks++;
 593                 currently_testing++;
 594         }
 595         if (badblocks > 1)
 596                 printf(_("%d bad blocks\n"), badblocks);
 597         else if (badblocks == 1)
 598                 printf(_("one bad block\n"));
 599 }
 600
 601 static void
 602 get_list_blocks(char *filename) {
 603   FILE *listfile;
 604   unsigned long blockno;
 605
 606   listfile=fopen(filename,"r");
 607   if(listfile == (FILE *)NULL) {
 608     die(_("can't open file of bad blocks"));
 609   }
 610   while(!feof(listfile)) {
 611     fscanf(listfile,"%ld\n", &blockno);
 612     mark_zone(blockno);
 613     badblocks++;
 614   }
 615   if(badblocks > 1)
 616     printf(_("%d bad blocks\n"), badblocks);
 617   else if (badblocks == 1)
 618     printf(_("one bad block\n"));
 619 }
 620
 621 int
 622 main(int argc, char ** argv) {
 623   int i;
 624   char * tmp;
 625   struct stat statbuf;
 626   char * listfile = NULL;
 627   char * p;
 628
 629   if (argc && *argv)
 630     program_name = *argv;
 631   if ((p = strrchr(program_name, '/')) != NULL)
 632     program_name = p+1;
 633
 634   setlocale(LC_ALL, "");
 635   bindtextdomain(PACKAGE, LOCALEDIR);
 636   textdomain(PACKAGE);
 637
 638   if (argc == 2 &&
 639       (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) {
 640           printf(_("%s from %s\n"), program_name, util_linux_version);
 641           exit(0);
 642   }
 643
 644   if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
 645     die(_("bad inode size"));
 646 #ifdef HAVE_MINIX2
 647   if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
 648     die(_("bad inode size"));
 649 #endif
 650   opterr = 0;
 651   while ((i = getopt(argc, argv, "ci:l:n:v")) != EOF)
 652     switch (i) {
 653       case 'c':
 654         check=1; break;
 655       case 'i':
 656         req_nr_inodes = (unsigned long) atol(optarg);
 657         break;
 658       case 'l':
 659         listfile = optarg; break;
 660       case 'n':
 661         i = strtoul(optarg,&tmp,0);
 662         if (*tmp)
 663           usage();
 664         if (i == 14)
 665           magic = MINIX_SUPER_MAGIC;
 666         else if (i == 30)
 667           magic = MINIX_SUPER_MAGIC2;
 668         else
 669           usage();
 670         namelen = i;
 671         dirsize = i+2;
 672         break;
 673       case 'v':
 674 #ifdef HAVE_MINIX2
 675         version2 = 1;
 676 #else
 677         fatal_error(_("%s: not compiled with minix v2 support\n"),-1);
 678 #endif
 679         break;
 680       default:
 681         usage();
 682     }
 683   argc -= optind;
 684   argv += optind;
 685   if (argc > 0 && !device_name) {
 686     device_name = argv[0];
 687     argc--;
 688     argv++;
 689   }
 690   if (argc > 0) {
 691      BLOCKS = strtol(argv[0],&tmp,0);
 692      if (*tmp) {
 693        printf(_("strtol error: number of blocks not specified"));
 694        usage();
 695      }
 696   }
 697
 698   if (device_name && !BLOCKS)
 699     BLOCKS = get_size (device_name) / 1024;
 700   if (!device_name || BLOCKS<10) {
 701     usage();
 702   }
 703 #ifdef HAVE_MINIX2
 704   if (version2) {
 705     if (namelen == 14)
 706       magic = MINIX2_SUPER_MAGIC;
 707     else
 708       magic = MINIX2_SUPER_MAGIC2;
 709   } else
 710 #endif
 711     if (BLOCKS > 65535)
 712       BLOCKS = 65535;
 713   check_mount();                /* is it already mounted? */
 714   tmp = root_block;
 715   *(short *)tmp = 1;
 716   strcpy(tmp+2,".");
 717   tmp += dirsize;
 718   *(short *)tmp = 1;
 719   strcpy(tmp+2,"..");
 720   tmp += dirsize;
 721   *(short *)tmp = 2;
 722   strcpy(tmp+2,".badblocks");
 723   DEV = open(device_name,O_RDWR );
 724   if (DEV<0)
 725     die(_("unable to open %s"));
 726   if (fstat(DEV,&statbuf)<0)
 727     die(_("unable to stat %s"));
 728   if (!S_ISBLK(statbuf.st_mode))
 729     check=0;
 730   else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
 731     die(_("will not try to make filesystem on '%s'"));
 732   setup_tables();
 733   if (check)
 734     check_blocks();
 735   else if (listfile)
 736     get_list_blocks(listfile);
 737 #ifdef HAVE_MINIX2
 738   if (version2) {
 739     make_root_inode2 ();
 740     make_bad_inode2 ();
 741   } else
 742 #endif
 743     {
 744       make_root_inode();
 745       make_bad_inode();
 746     }
 747   mark_good_blocks();
 748   write_tables();
 749   return 0;
 750 }