imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 853 insertions, 0 deletions

diff --git a/release/src/router/busybox/mkfs_minix.c b/release/src/router/busybox/mkfs_minix.c
new file mode 100644
index 00000000..70374eae
--- /dev/null
+++ b/release/src/router/busybox/mkfs_minix.c
@@ -0,0 +1,853 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * 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 :-). 
+ *
+ * Modified for BusyBox by Erik Andersen <andersen@debian.org> --
+ *	removed getopt based parser and added a hand rolled one.
+ */
+
+#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/ioctl.h>
+#include <sys/param.h>
+#include <mntent.h>
+#include "busybox.h"
+
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+
+#define MINIX_ROOT_INO 1
+#define MINIX_LINK_MAX	250
+#define MINIX2_LINK_MAX	65530
+
+#define MINIX_I_MAP_SLOTS	8
+#define MINIX_Z_MAP_SLOTS	64
+#define MINIX_SUPER_MAGIC	0x137F		/* original minix fs */
+#define MINIX_SUPER_MAGIC2	0x138F		/* minix fs, 30 char names */
+#define MINIX2_SUPER_MAGIC	0x2468		/* minix V2 fs */
+#define MINIX2_SUPER_MAGIC2	0x2478		/* minix V2 fs, 30 char names */
+#define MINIX_VALID_FS		0x0001		/* Clean fs. */
+#define MINIX_ERROR_FS		0x0002		/* fs has errors. */
+
+#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
+#define MINIX2_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix2_inode)))
+
+#define MINIX_V1		0x0001		/* original minix fs */
+#define MINIX_V2		0x0002		/* minix V2 fs */
+
+#define INODE_VERSION(inode)	inode->i_sb->u.minix_sb.s_version
+
+/*
+ * This is the original minix inode layout on disk.
+ * Note the 8-bit gid and atime and ctime.
+ */
+struct minix_inode {
+	u16 i_mode;
+	u16 i_uid;
+	u32 i_size;
+	u32 i_time;
+	u8  i_gid;
+	u8  i_nlinks;
+	u16 i_zone[9];
+};
+
+/*
+ * The new minix inode has all the time entries, as well as
+ * long block numbers and a third indirect block (7+1+1+1
+ * instead of 7+1+1). Also, some previously 8-bit values are
+ * now 16-bit. The inode is now 64 bytes instead of 32.
+ */
+struct minix2_inode {
+	u16 i_mode;
+	u16 i_nlinks;
+	u16 i_uid;
+	u16 i_gid;
+	u32 i_size;
+	u32 i_atime;
+	u32 i_mtime;
+	u32 i_ctime;
+	u32 i_zone[10];
+};
+
+/*
+ * minix super-block data on disk
+ */
+struct minix_super_block {
+	u16 s_ninodes;
+	u16 s_nzones;
+	u16 s_imap_blocks;
+	u16 s_zmap_blocks;
+	u16 s_firstdatazone;
+	u16 s_log_zone_size;
+	u32 s_max_size;
+	u16 s_magic;
+	u16 s_state;
+	u32 s_zones;
+};
+
+struct minix_dir_entry {
+	u16 inode;
+	char name[0];
+};
+
+#define BLOCK_SIZE_BITS 10
+#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
+
+#define NAME_MAX         255   /* # chars in a file name */
+
+#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
+
+#define MINIX_VALID_FS               0x0001          /* Clean fs. */
+#define MINIX_ERROR_FS               0x0002          /* fs has errors. */
+
+#define MINIX_SUPER_MAGIC    0x137F          /* original minix fs */
+#define MINIX_SUPER_MAGIC2   0x138F          /* minix fs, 30 char names */
+
+#ifndef BLKGETSIZE
+#define BLKGETSIZE _IO(0x12,96)    /* return device size */
+#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 BB_FEATURE_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 *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 BB_FEATURE_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 BB_FEATURE_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;
+
+static inline int bit(char * a,unsigned int i)
+{
+	  return (a[i >> 3] & (1<<(i & 7))) != 0;
+}
+#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))
+
+/*
+ * 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;
+
+	error_msg_and_die("%s is mounted; will not make a filesystem here!", device_name);
+}
+
+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;
+
+	if ((fd = open(file, O_RDWR)) < 0)
+		perror_msg_and_die("%s", file);
+	if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
+		close(fd);
+		return (size * 512);
+	}
+
+	size = count_blocks(fd);
+	close(fd);
+	return size;
+}
+
+static 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))
+		error_msg_and_die("seek to boot block failed in write_tables");
+	if (512 != write(DEV, boot_block_buffer, 512))
+		error_msg_and_die("unable to clear boot sector");
+	if (BLOCK_SIZE != lseek(DEV, BLOCK_SIZE, SEEK_SET))
+		error_msg_and_die("seek failed in write_tables");
+	if (BLOCK_SIZE != write(DEV, super_block_buffer, BLOCK_SIZE))
+		error_msg_and_die("unable to write super-block");
+	if (IMAPS * BLOCK_SIZE != write(DEV, inode_map, IMAPS * BLOCK_SIZE))
+		error_msg_and_die("unable to write inode map");
+	if (ZMAPS * BLOCK_SIZE != write(DEV, zone_map, ZMAPS * BLOCK_SIZE))
+		error_msg_and_die("unable to write zone map");
+	if (INODE_BUFFER_SIZE != write(DEV, inode_buffer, INODE_BUFFER_SIZE))
+		error_msg_and_die("unable to write inodes");
+
+}
+
+static void write_block(int blk, char *buffer)
+{
+	if (blk * BLOCK_SIZE != lseek(DEV, blk * BLOCK_SIZE, SEEK_SET))
+		error_msg_and_die("seek failed in write_block");
+	if (BLOCK_SIZE != write(DEV, buffer, BLOCK_SIZE))
+		error_msg_and_die("write failed in write_block");
+}
+
+static int get_free_block(void)
+{
+	int blk;
+
+	if (used_good_blocks + 1 >= MAX_GOOD_BLOCKS)
+		error_msg_and_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)
+		error_msg_and_die("not enough good blocks");
+	good_blocks_table[used_good_blocks] = blk;
+	used_good_blocks++;
+	return blk;
+}
+
+static void mark_good_blocks(void)
+{
+	int blk;
+
+	for (blk = 0; blk < used_good_blocks; blk++)
+		mark_zone(good_blocks_table[blk]);
+}
+
+static int next(int zone)
+{
+	if (!zone)
+		zone = FIRSTZONE - 1;
+	while (++zone < ZONES)
+		if (zone_in_use(zone))
+			return zone;
+	return 0;
+}
+
+static 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;
+		}
+	}
+	error_msg_and_die("too many bad blocks");
+  end_bad:
+	if (ind)
+		write_block(ind, (char *) ind_block);
+	if (dind)
+		write_block(dind, (char *) dind_block);
+}
+
+#ifdef BB_FEATURE_MINIX2
+static 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 */
+	error_msg_and_die("too many bad blocks");
+  end_bad:
+	if (ind)
+		write_block(ind, (char *) ind_block);
+	if (dind)
+		write_block(dind, (char *) dind_block);
+}
+#endif
+
+static 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 BB_FEATURE_MINIX2
+static 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
+
+static 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 BB_FEATURE_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) {
+		error_msg_and_die("unable to allocate buffers for maps");
+	}
+	FIRSTZONE = NORM_FIRSTZONE;
+	inode_map = xmalloc(IMAPS * BLOCK_SIZE);
+	zone_map = xmalloc(ZMAPS * BLOCK_SIZE);
+	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 = xmalloc(INODE_BUFFER_SIZE);
+	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.
+ */
+static 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) {
+		error_msg_and_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;
+
+static 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);
+}
+
+static 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)
+			error_msg_and_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)
+			error_msg_and_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");
+}
+
+static void get_list_blocks(filename)
+char *filename;
+
+{
+	FILE *listfile;
+	unsigned long blockno;
+
+	listfile = xfopen(filename, "r");
+	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=1;
+	char *tmp;
+	struct stat statbuf;
+	char *listfile = NULL;
+	int stopIt=FALSE;
+
+	if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
+		error_msg_and_die("bad inode size");
+#ifdef BB_FEATURE_MINIX2
+	if (INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE)
+		error_msg_and_die("bad inode size");
+#endif
+	
+	/* Parse options */
+	argv++;
+	while (--argc >= 0 && *argv && **argv) {
+		if (**argv == '-') {
+			stopIt=FALSE;
+			while (i > 0 && *++(*argv) && stopIt==FALSE) {
+				switch (**argv) {
+					case 'c':
+						check = 1;
+						break;
+					case 'i':
+						{
+							char *cp=NULL;
+							if (*(*argv+1) != 0) {
+								cp = ++(*argv);
+							} else {
+								if (--argc == 0) {
+									goto goodbye;
+								}
+								cp = *(++argv);
+							}
+							req_nr_inodes = strtoul(cp, &tmp, 0);
+							if (*tmp)
+								show_usage();
+							stopIt=TRUE;
+							break;
+						}
+					case 'l':
+						if (--argc == 0) {
+							goto goodbye;
+						}
+						listfile = *(++argv);
+						break;
+					case 'n':
+						{
+							char *cp=NULL;
+
+							if (*(*argv+1) != 0) {
+								cp = ++(*argv);
+							} else {
+								if (--argc == 0) {
+									goto goodbye;
+								}
+								cp = *(++argv);
+							}
+							i = strtoul(cp, &tmp, 0);
+							if (*tmp)
+								show_usage();
+							if (i == 14)
+								magic = MINIX_SUPER_MAGIC;
+							else if (i == 30)
+								magic = MINIX_SUPER_MAGIC2;
+							else 
+								show_usage();
+							namelen = i;
+							dirsize = i + 2;
+							stopIt=TRUE;
+							break;
+						}
+					case 'v':
+#ifdef BB_FEATURE_MINIX2
+						version2 = 1;
+#else
+						error_msg("%s: not compiled with minix v2 support",
+								device_name);
+						exit(-1);
+#endif
+						break;
+					case '-':
+					case 'h':
+					default:
+goodbye:
+						show_usage();
+				}
+			}
+		} else {
+			if (device_name == NULL)
+				device_name = *argv;
+			else if (BLOCKS == 0)
+				BLOCKS = strtol(*argv, &tmp, 0);
+			else {
+				goto goodbye;
+			}
+		}
+		argv++;
+	}
+
+	if (device_name && !BLOCKS)
+		BLOCKS = get_size(device_name) / 1024;
+	if (!device_name || BLOCKS < 10) {
+		show_usage();
+	}
+#ifdef BB_FEATURE_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)
+		error_msg_and_die("unable to open %s", device_name);
+	if (fstat(DEV, &statbuf) < 0)
+		error_msg_and_die("unable to stat %s", device_name);
+	if (!S_ISBLK(statbuf.st_mode))
+		check = 0;
+	else if (statbuf.st_rdev == 0x0300 || statbuf.st_rdev == 0x0340)
+		error_msg_and_die("will not try to make filesystem on '%s'", device_name);
+	setup_tables();
+	if (check)
+		check_blocks();
+	else if (listfile)
+		get_list_blocks(listfile);
+#ifdef BB_FEATURE_MINIX2
+	if (version2) {
+		make_root_inode2();
+		make_bad_inode2();
+	} else
+#endif
+	{
+		make_root_inode();
+		make_bad_inode();
+	}
+	mark_good_blocks();
+	write_tables();
+	return( 0);
+
+}