aboutsummaryrefslogtreecommitdiff
path: root/mkfs_minix.c
diff options
context:
space:
mode:
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 /mkfs_minix.c
parente77ae3a2c0328590b43447550bdb1284650b8236 (diff)
downloadbusybox-e494fdd2c73f7f2979f7e02d65e46a50bd86a59f.tar.gz
More stuff
Diffstat (limited to 'mkfs_minix.c')
-rw-r--r--mkfs_minix.c755
1 files changed, 755 insertions, 0 deletions
diff --git a/mkfs_minix.c b/mkfs_minix.c
new file mode 100644
index 000000000..7c8af7e1d
--- /dev/null
+++ b/mkfs_minix.c
@@ -0,0 +1,755 @@
+/*
+ * mkfs.c - make a linux (minix) file-system.
+ *
+ * (C) 1991 Linus Torvalds. This file may be redistributed as per
+ * the Linux copyright.
+ */
+
+/*
+ * DD.MM.YY
+ *
+ * 24.11.91 - Time began. Used the fsck sources to get started.
+ *
+ * 25.11.91 - Corrected some bugs. Added support for ".badblocks"
+ * The algorithm for ".badblocks" is a bit weird, but
+ * it should work. Oh, well.
+ *
+ * 25.01.92 - Added the -l option for getting the list of bad blocks
+ * out of a named file. (Dave Rivers, rivers@ponds.uucp)
+ *
+ * 28.02.92 - Added %-information when using -c.
+ *
+ * 28.02.93 - Added support for other namelengths than the original
+ * 14 characters so that I can test the new kernel routines..
+ *
+ * 09.10.93 - Make exit status conform to that required by fsutil
+ * (Rik Faith, faith@cs.unc.edu)
+ *
+ * 31.10.93 - Added inode request feature, for backup floppies: use
+ * 32 inodes, for a news partition use more.
+ * (Scott Heavner, sdh@po.cwru.edu)
+ *
+ * 03.01.94 - Added support for file system valid flag.
+ * (Dr. Wettstein, greg%wind.uucp@plains.nodak.edu)
+ *
+ * 30.10.94 - added support for v2 filesystem
+ * (Andreas Schwab, schwab@issan.informatik.uni-dortmund.de)
+ *
+ * 09.11.94 - Added test to prevent overwrite of mounted fs adapted
+ * from Theodore Ts'o's (tytso@athena.mit.edu) mke2fs
+ * program. (Daniel Quinlan, quinlan@yggdrasil.com)
+ *
+ * 03.20.95 - Clear first 512 bytes of filesystem to make certain that
+ * the filesystem is not misidentified as a MS-DOS FAT filesystem.
+ * (Daniel Quinlan, quinlan@yggdrasil.com)
+ *
+ * 02.07.96 - Added small patch from Russell King to make the program a
+ * good deal more portable (janl@math.uio.no)
+ *
+ * Usage: mkfs [-c | -l filename ] [-v] [-nXX] [-iXX] device [size-in-blocks]
+ *
+ * -c for readablility checking (SLOW!)
+ * -l for getting a list of bad blocks from a file.
+ * -n for namelength (currently the kernel only uses 14 or 30)
+ * -i for number of inodes
+ * -v for v2 filesystem
+ *
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-).
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <string.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <mntent.h>
+#include <getopt.h>
+
+#include <linux/fs.h>
+#include <linux/minix_fs.h>
+
+#include "nls.h"
+#include "../version.h"
+
+#ifdef MINIX2_SUPER_MAGIC2
+#define HAVE_MINIX2 1
+#endif
+
+#ifndef __GNUC__
+#error "needs gcc for the bitop-__asm__'s"
+#endif
+
+#ifndef __linux__
+#define volatile
+#endif
+
+#define MINIX_ROOT_INO 1
+#define MINIX_BAD_INO 2
+
+#define TEST_BUFFER_BLOCKS 16
+#define MAX_GOOD_BLOCKS 512
+
+#define UPPER(size,n) (((size)+((n)-1))/(n))
+#define INODE_SIZE (sizeof(struct minix_inode))
+#ifdef HAVE_MINIX2
+#define INODE_SIZE2 (sizeof(struct minix2_inode))
+#define INODE_BLOCKS UPPER(INODES, (version2 ? MINIX2_INODES_PER_BLOCK \
+ : MINIX_INODES_PER_BLOCK))
+#else
+#define INODE_BLOCKS UPPER(INODES, (MINIX_INODES_PER_BLOCK))
+#endif
+#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
+
+#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
+
+static char * program_name = "mkfs";
+static char * device_name = NULL;
+static int DEV = -1;
+static long BLOCKS = 0;
+static int check = 0;
+static int badblocks = 0;
+static int namelen = 30; /* default (changed to 30, per Linus's
+ suggestion, Sun Nov 21 08:05:07 1993) */
+static int dirsize = 32;
+static int magic = MINIX_SUPER_MAGIC2;
+static int version2 = 0;
+
+static char root_block[BLOCK_SIZE] = "\0";
+
+static char * inode_buffer = NULL;
+#define Inode (((struct minix_inode *) inode_buffer)-1)
+#ifdef HAVE_MINIX2
+#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
+#endif
+static char super_block_buffer[BLOCK_SIZE];
+static char boot_block_buffer[512];
+#define Super (*(struct minix_super_block *)super_block_buffer)
+#define INODES ((unsigned long)Super.s_ninodes)
+#ifdef HAVE_MINIX2
+#define ZONES ((unsigned long)(version2 ? Super.s_zones : Super.s_nzones))
+#else
+#define ZONES ((unsigned long)(Super.s_nzones))
+#endif
+#define IMAPS ((unsigned long)Super.s_imap_blocks)
+#define ZMAPS ((unsigned long)Super.s_zmap_blocks)
+#define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
+#define ZONESIZE ((unsigned long)Super.s_log_zone_size)
+#define MAXSIZE ((unsigned long)Super.s_max_size)
+#define MAGIC (Super.s_magic)
+#define NORM_FIRSTZONE (2+IMAPS+ZMAPS+INODE_BLOCKS)
+
+static char *inode_map;
+static char *zone_map;
+
+static unsigned short good_blocks_table[MAX_GOOD_BLOCKS];
+static int used_good_blocks = 0;
+static unsigned long req_nr_inodes = 0;
+
+#include "bitops.h"
+
+#define inode_in_use(x) (bit(inode_map,(x)))
+#define zone_in_use(x) (bit(zone_map,(x)-FIRSTZONE+1))
+
+#define mark_inode(x) (setbit(inode_map,(x)))
+#define unmark_inode(x) (clrbit(inode_map,(x)))
+
+#define mark_zone(x) (setbit(zone_map,(x)-FIRSTZONE+1))
+#define unmark_zone(x) (clrbit(zone_map,(x)-FIRSTZONE+1))
+
+/*
+ * Volatile to let gcc know that this doesn't return. When trying
+ * to compile this under minix, volatile gives a warning, as
+ * exit() isn't defined as volatile under minix.
+ */
+volatile void fatal_error(const char * fmt_string,int status)
+{
+ fprintf(stderr,fmt_string,program_name,device_name);
+ exit(status);
+}
+
+volatile void die(char *str) {
+ fprintf(stderr, "%s: %s\n", program_name, str);
+ exit(8);
+}
+
+volatile void usage()
+{
+ fprintf(stderr, "%s (%s)\n", program_name, util_linux_version);
+ fprintf(stderr,
+ _("Usage: %s [-c | -l filename] [-nXX] [-iXX] /dev/name [blocks]\n"),
+ program_name);
+ exit(16);
+}
+
+/*
+ * Check to make certain that our new filesystem won't be created on
+ * an already mounted partition. Code adapted from mke2fs, Copyright
+ * (C) 1994 Theodore Ts'o. Also licensed under GPL.
+ */
+static void check_mount(void)
+{
+ FILE * f;
+ struct mntent * mnt;
+
+ if ((f = setmntent (MOUNTED, "r")) == NULL)
+ return;
+ while ((mnt = getmntent (f)) != NULL)
+ if (strcmp (device_name, mnt->mnt_fsname) == 0)
+ break;
+ endmntent (f);
+ if (!mnt)
+ return;
+
+ die(_("%s is mounted; will not make a filesystem here!"));
+}
+
+static long valid_offset (int fd, int offset)
+{
+ char ch;
+
+ if (lseek (fd, offset, 0) < 0)
+ return 0;
+ if (read (fd, &ch, 1) < 1)
+ return 0;
+ return 1;
+}
+
+static int count_blocks (int fd)
+{
+ int high, low;
+
+ low = 0;
+ for (high = 1; valid_offset (fd, high); high *= 2)
+ low = high;
+ while (low < high - 1)
+ {
+ const int mid = (low + high) / 2;
+
+ if (valid_offset (fd, mid))
+ low = mid;
+ else
+ high = mid;
+ }
+ valid_offset (fd, 0);
+ return (low + 1);
+}
+
+static int get_size(const char *file)
+{
+ int fd;
+ long size;
+
+ fd = open(file, O_RDWR);
+ if (fd < 0) {
+ perror(file);
+ exit(1);
+ }
+ if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+ close(fd);
+ return (size * 512);
+ }
+
+ size = count_blocks(fd);
+ close(fd);
+ return size;
+}
+
+void write_tables(void)
+{
+ /* Mark the super block valid. */
+ Super.s_state |= MINIX_VALID_FS;
+ Super.s_state &= ~MINIX_ERROR_FS;
+
+ if (lseek(DEV, 0, SEEK_SET))
+ die(_("seek to boot block failed in write_tables"));
+ if (512 != write(DEV, boot_block_buffer, 512))
+ die(_("unable to clear boot sector"));
+ if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
+ die(_("seek failed in write_tables"));
+ if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
+ die(_("unable to write super-block"));
+ if (IMAPS*BLOCK_SIZE != write(DEV,inode_map,IMAPS*BLOCK_SIZE))
+ die(_("unable to write inode map"));
+ if (ZMAPS*BLOCK_SIZE != write(DEV,zone_map,ZMAPS*BLOCK_SIZE))
+ die(_("unable to write zone map"));
+ if (INODE_BUFFER_SIZE != write(DEV,inode_buffer,INODE_BUFFER_SIZE))
+ die(_("unable to write inodes"));
+
+}
+
+void write_block(int blk, char * buffer)
+{
+ if (blk*BLOCK_SIZE != lseek(DEV, blk*BLOCK_SIZE, SEEK_SET))
+ die(_("seek failed in write_block"));
+ if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
+ die(_("write failed in write_block"));
+}
+
+int get_free_block(void)
+{
+ int blk;
+
+ if (used_good_blocks+1 >= MAX_GOOD_BLOCKS)
+ die(_("too many bad blocks"));
+ if (used_good_blocks)
+ blk = good_blocks_table[used_good_blocks-1]+1;
+ else
+ blk = FIRSTZONE;
+ while (blk < ZONES && zone_in_use(blk))
+ blk++;
+ if (blk >= ZONES)
+ die(_("not enough good blocks"));
+ good_blocks_table[used_good_blocks] = blk;
+ used_good_blocks++;
+ return blk;
+}
+
+void mark_good_blocks(void)
+{
+ int blk;
+
+ for (blk=0 ; blk < used_good_blocks ; blk++)
+ mark_zone(good_blocks_table[blk]);
+}
+
+inline int next(int zone)
+{
+ if (!zone)
+ zone = FIRSTZONE-1;
+ while (++zone < ZONES)
+ if (zone_in_use(zone))
+ return zone;
+ return 0;
+}
+
+void make_bad_inode(void)
+{
+ struct minix_inode * inode = &Inode[MINIX_BAD_INO];
+ int i,j,zone;
+ int ind=0,dind=0;
+ unsigned short ind_block[BLOCK_SIZE>>1];
+ unsigned short dind_block[BLOCK_SIZE>>1];
+
+#define NEXT_BAD (zone = next(zone))
+
+ if (!badblocks)
+ return;
+ mark_inode(MINIX_BAD_INO);
+ inode->i_nlinks = 1;
+ inode->i_time = time(NULL);
+ inode->i_mode = S_IFREG + 0000;
+ inode->i_size = badblocks*BLOCK_SIZE;
+ zone = next(0);
+ for (i=0 ; i<7 ; i++) {
+ inode->i_zone[i] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ inode->i_zone[7] = ind = get_free_block();
+ memset(ind_block,0,BLOCK_SIZE);
+ for (i=0 ; i<512 ; i++) {
+ ind_block[i] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ inode->i_zone[8] = dind = get_free_block();
+ memset(dind_block,0,BLOCK_SIZE);
+ for (i=0 ; i<512 ; i++) {
+ write_block(ind,(char *) ind_block);
+ dind_block[i] = ind = get_free_block();
+ memset(ind_block,0,BLOCK_SIZE);
+ for (j=0 ; j<512 ; j++) {
+ ind_block[j] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ }
+ die(_("too many bad blocks"));
+end_bad:
+ if (ind)
+ write_block(ind, (char *) ind_block);
+ if (dind)
+ write_block(dind, (char *) dind_block);
+}
+
+#ifdef HAVE_MINIX2
+void
+make_bad_inode2 (void)
+{
+ struct minix2_inode *inode = &Inode2[MINIX_BAD_INO];
+ int i, j, zone;
+ int ind = 0, dind = 0;
+ unsigned long ind_block[BLOCK_SIZE >> 2];
+ unsigned long dind_block[BLOCK_SIZE >> 2];
+
+ if (!badblocks)
+ return;
+ mark_inode (MINIX_BAD_INO);
+ inode->i_nlinks = 1;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
+ inode->i_mode = S_IFREG + 0000;
+ inode->i_size = badblocks * BLOCK_SIZE;
+ zone = next (0);
+ for (i = 0; i < 7; i++) {
+ inode->i_zone[i] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ inode->i_zone[7] = ind = get_free_block ();
+ memset (ind_block, 0, BLOCK_SIZE);
+ for (i = 0; i < 256; i++) {
+ ind_block[i] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ inode->i_zone[8] = dind = get_free_block ();
+ memset (dind_block, 0, BLOCK_SIZE);
+ for (i = 0; i < 256; i++) {
+ write_block (ind, (char *) ind_block);
+ dind_block[i] = ind = get_free_block ();
+ memset (ind_block, 0, BLOCK_SIZE);
+ for (j = 0; j < 256; j++) {
+ ind_block[j] = zone;
+ if (!NEXT_BAD)
+ goto end_bad;
+ }
+ }
+ /* Could make triple indirect block here */
+ die (_("too many bad blocks"));
+ end_bad:
+ if (ind)
+ write_block (ind, (char *) ind_block);
+ if (dind)
+ write_block (dind, (char *) dind_block);
+}
+#endif
+
+void make_root_inode(void)
+{
+ struct minix_inode * inode = &Inode[MINIX_ROOT_INO];
+
+ mark_inode(MINIX_ROOT_INO);
+ inode->i_zone[0] = get_free_block();
+ inode->i_nlinks = 2;
+ inode->i_time = time(NULL);
+ if (badblocks)
+ inode->i_size = 3*dirsize;
+ else {
+ root_block[2*dirsize] = '\0';
+ root_block[2*dirsize+1] = '\0';
+ inode->i_size = 2*dirsize;
+ }
+ inode->i_mode = S_IFDIR + 0755;
+ inode->i_uid = getuid();
+ if (inode->i_uid)
+ inode->i_gid = getgid();
+ write_block(inode->i_zone[0],root_block);
+}
+
+#ifdef HAVE_MINIX2
+void
+make_root_inode2 (void)
+{
+ struct minix2_inode *inode = &Inode2[MINIX_ROOT_INO];
+
+ mark_inode (MINIX_ROOT_INO);
+ inode->i_zone[0] = get_free_block ();
+ inode->i_nlinks = 2;
+ inode->i_atime = inode->i_mtime = inode->i_ctime = time (NULL);
+ if (badblocks)
+ inode->i_size = 3 * dirsize;
+ else {
+ root_block[2 * dirsize] = '\0';
+ root_block[2 * dirsize + 1] = '\0';
+ inode->i_size = 2 * dirsize;
+ }
+ inode->i_mode = S_IFDIR + 0755;
+ inode->i_uid = getuid();
+ if (inode->i_uid)
+ inode->i_gid = getgid();
+ write_block (inode->i_zone[0], root_block);
+}
+#endif
+
+void setup_tables(void)
+{
+ int i;
+ unsigned long inodes;
+
+ memset(super_block_buffer,0,BLOCK_SIZE);
+ memset(boot_block_buffer,0,512);
+ MAGIC = magic;
+ ZONESIZE = 0;
+ MAXSIZE = version2 ? 0x7fffffff : (7+512+512*512)*1024;
+ ZONES = BLOCKS;
+/* some magic nrs: 1 inode / 3 blocks */
+ if ( req_nr_inodes == 0 )
+ inodes = BLOCKS/3;
+ else
+ inodes = req_nr_inodes;
+ /* Round up inode count to fill block size */
+#ifdef HAVE_MINIX2
+ if (version2)
+ inodes = ((inodes + MINIX2_INODES_PER_BLOCK - 1) &
+ ~(MINIX2_INODES_PER_BLOCK - 1));
+ else
+#endif
+ inodes = ((inodes + MINIX_INODES_PER_BLOCK - 1) &
+ ~(MINIX_INODES_PER_BLOCK - 1));
+ if (inodes > 65535)
+ inodes = 65535;
+ INODES = inodes;
+ IMAPS = UPPER(INODES + 1,BITS_PER_BLOCK);
+ ZMAPS = 0;
+ i=0;
+ while (ZMAPS != UPPER(BLOCKS - (2+IMAPS+ZMAPS+INODE_BLOCKS) + 1,BITS_PER_BLOCK) && i<1000) {
+ ZMAPS = UPPER(BLOCKS - (2+IMAPS+ZMAPS+INODE_BLOCKS) + 1,BITS_PER_BLOCK);
+ i++;
+ }
+ /* Real bad hack but overwise mkfs.minix can be thrown
+ * in infinite loop...
+ * try:
+ * dd if=/dev/zero of=test.fs count=10 bs=1024
+ * /sbin/mkfs.minix -i 200 test.fs
+ * */
+ if (i>=999) {
+ die ("unable to allocate buffers for maps");
+ }
+ FIRSTZONE = NORM_FIRSTZONE;
+ inode_map = malloc(IMAPS * BLOCK_SIZE);
+ zone_map = malloc(ZMAPS * BLOCK_SIZE);
+ if (!inode_map || !zone_map)
+ die(_("unable to allocate buffers for maps"));
+ memset(inode_map,0xff,IMAPS * BLOCK_SIZE);
+ memset(zone_map,0xff,ZMAPS * BLOCK_SIZE);
+ for (i = FIRSTZONE ; i<ZONES ; i++)
+ unmark_zone(i);
+ for (i = MINIX_ROOT_INO ; i<=INODES ; i++)
+ unmark_inode(i);
+ inode_buffer = malloc(INODE_BUFFER_SIZE);
+ if (!inode_buffer)
+ die(_("unable to allocate buffer for inodes"));
+ memset(inode_buffer,0,INODE_BUFFER_SIZE);
+ printf(_("%ld inodes\n"),INODES);
+ printf(_("%ld blocks\n"),ZONES);
+ printf(_("Firstdatazone=%ld (%ld)\n"),FIRSTZONE,NORM_FIRSTZONE);
+ printf(_("Zonesize=%d\n"),BLOCK_SIZE<<ZONESIZE);
+ printf(_("Maxsize=%ld\n\n"),MAXSIZE);
+}
+
+/*
+ * Perform a test of a block; return the number of
+ * blocks readable/writeable.
+ */
+long do_check(char * buffer, int try, unsigned int current_block)
+{
+ long got;
+
+ /* Seek to the correct loc. */
+ if (lseek(DEV, current_block * BLOCK_SIZE, SEEK_SET) !=
+ current_block * BLOCK_SIZE ) {
+ die(_("seek failed during testing of blocks"));
+ }
+
+
+ /* Try the read */
+ got = read(DEV, buffer, try * BLOCK_SIZE);
+ if (got < 0) got = 0;
+ if (got & (BLOCK_SIZE - 1 )) {
+ printf(_("Weird values in do_check: probably bugs\n"));
+ }
+ got /= BLOCK_SIZE;
+ return got;
+}
+
+static unsigned int currently_testing = 0;
+
+void alarm_intr(int alnum)
+{
+ if (currently_testing >= ZONES)
+ return;
+ signal(SIGALRM,alarm_intr);
+ alarm(5);
+ if (!currently_testing)
+ return;
+ printf("%d ...", currently_testing);
+ fflush(stdout);
+}
+
+void check_blocks(void)
+{
+ int try,got;
+ static char buffer[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
+
+ currently_testing=0;
+ signal(SIGALRM,alarm_intr);
+ alarm(5);
+ while (currently_testing < ZONES) {
+ if (lseek(DEV,currently_testing*BLOCK_SIZE,SEEK_SET) !=
+ currently_testing*BLOCK_SIZE)
+ die(_("seek failed in check_blocks"));
+ try = TEST_BUFFER_BLOCKS;
+ if (currently_testing + try > ZONES)
+ try = ZONES-currently_testing;
+ got = do_check(buffer, try, currently_testing);
+ currently_testing += got;
+ if (got == try)
+ continue;
+ if (currently_testing < FIRSTZONE)
+ die(_("bad blocks before data-area: cannot make fs"));
+ mark_zone(currently_testing);
+ badblocks++;
+ currently_testing++;
+ }
+ if (badblocks > 1)
+ printf(_("%d bad blocks\n"), badblocks);
+ else if (badblocks == 1)
+ printf(_("one bad block\n"));
+}
+
+void get_list_blocks(filename)
+char *filename;
+
+{
+ FILE *listfile;
+ unsigned long blockno;
+
+ listfile=fopen(filename,"r");
+ if(listfile == (FILE *)NULL) {
+ die(_("can't open file of bad blocks"));
+ }
+ while(!feof(listfile)) {
+ fscanf(listfile,"%ld\n", &blockno);
+ mark_zone(blockno);
+ badblocks++;
+ }
+ if(badblocks > 1)
+ printf(_("%d bad blocks\n"), badblocks);
+ else if (badblocks == 1)
+ printf(_("one bad block\n"));
+}
+
+extern int
+mkfs_minix_main(int argc, char ** argv)
+{
+ int i;
+ char * tmp;
+ struct stat statbuf;
+ char * listfile = NULL;
+
+ if (argc && *argv)
+ program_name = *argv;
+ if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
+ die(_("bad inode size"));
+#ifdef HAVE_MINIX2
+ if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
+ die(_("bad inode size"));
+#endif
+ opterr = 0;
+ while ((i = getopt(argc, argv, "ci:l:n:v")) != EOF)
+ switch (i) {
+ case 'c':
+ check=1; break;
+ case 'i':
+ req_nr_inodes = (unsigned long) atol(optarg);
+ break;
+ case 'l':
+ listfile = optarg; break;
+ case 'n':
+ i = strtoul(optarg,&tmp,0);
+ if (*tmp)
+ usage();
+ if (i == 14)
+ magic = MINIX_SUPER_MAGIC;
+ else if (i == 30)
+ magic = MINIX_SUPER_MAGIC2;
+ else
+ usage();
+ namelen = i;
+ dirsize = i+2;
+ break;
+ case 'v':
+#ifdef HAVE_MINIX2
+ version2 = 1;
+#else
+ fatal_error(_("%s: not compiled with minix v2 support\n"),-1);
+#endif
+ break;
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+ if (argc > 0 && !device_name) {
+ device_name = argv[0];
+ argc--;
+ argv++;
+ }
+ if (argc > 0) {
+ BLOCKS = strtol(argv[0],&tmp,0);
+ if (*tmp) {
+ printf(_("strtol error: number of blocks not specified"));
+ usage();
+ }
+ }
+
+ if (device_name && !BLOCKS)
+ BLOCKS = get_size (device_name) / 1024;
+ if (!device_name || BLOCKS<10) {
+ usage();
+ }
+#ifdef HAVE_MINIX2
+ if (version2) {
+ if (namelen == 14)
+ magic = MINIX2_SUPER_MAGIC;
+ else
+ magic = MINIX2_SUPER_MAGIC2;
+ } else
+#endif
+ if (BLOCKS > 65535)
+ BLOCKS = 65535;
+ check_mount(); /* is it already mounted? */
+ tmp = root_block;
+ *(short *)tmp = 1;
+ strcpy(tmp+2,".");
+ tmp += dirsize;
+ *(short *)tmp = 1;
+ strcpy(tmp+2,"..");
+ tmp += dirsize;
+ *(short *)tmp = 2;
+ strcpy(tmp+2,".badblocks");
+ DEV = open(device_name,O_RDWR );
+ if (DEV<0)
+ die(_("unable to open %s"));
+ if (fstat(DEV,&statbuf)<0)
+ die(_("unable to stat %s"));
+ if (!S_ISBLK(statbuf.st_mode))
+ check=0;
+ else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+ die(_("will not try to make filesystem on '%s'"));
+ setup_tables();
+ if (check)
+ check_blocks();
+ else if (listfile)
+ get_list_blocks(listfile);
+#ifdef HAVE_MINIX2
+ if (version2) {
+ make_root_inode2 ();
+ make_bad_inode2 ();
+ } else
+#endif
+ {
+ make_root_inode();
+ make_bad_inode();
+ }
+ mark_good_blocks();
+ write_tables();
+ return 0;
+}