[thirdparty/util-linux.git] / disk-utils / mkfs.bfs.c

/*
 *  mkfs.bfs - Create SCO BFS filesystem - aeb, 1999-09-07
 *
 *	Usage: mkfs.bfs [-N nr-of-inodes] [-V volume-name] [-F fsname] device
 */

#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>

#include "blkdev.h"
#include "c.h"
#include "closestream.h"
#include "nls.h"
#include "strutils.h"
#include "xalloc.h"
#include "bitops.h"
#include "exitcodes.h"

#define BFS_ROOT_INO		2
#define BFS_NAMELEN		14
#define BFS_BLOCKSIZE		512
#define BFS_SUPER_MAGIC		0x1badface

/* superblock - 512 bytes */
struct bfssb {
	uint32_t s_magic;
	uint32_t s_start;	/* byte offset of start of data */
	uint32_t s_end;	/* sizeof(slice)-1 */

	/* for recovery during compaction */
	uint32_t s_from, s_to;	/* src and dest block of current transfer */
	int32_t s_backup_from, s_backup_to;

	/* labels - may well contain garbage */
	char s_fsname[6];
	char s_volume[6];
	char s_pad[472];
};

/* inode - 64 bytes */
struct bfsi {
	uint16_t i_ino;
	unsigned char i_pad1[2];
	uint32_t i_first_block;
	uint32_t i_last_block;
	uint32_t i_bytes_to_end;
	uint32_t i_type;	/* 1: file, 2: the unique dir */
	uint32_t i_mode;
	uint32_t i_uid, i_gid;
	uint32_t i_nlinks;
	uint32_t i_atime, i_mtime, i_ctime;
	unsigned char i_pad2[16];
};

#define BFS_DIR_TYPE	2

/* directory entry - 16 bytes */
struct bfsde {
	uint16_t d_ino;
	char d_name[BFS_NAMELEN];
};

static void __attribute__((__noreturn__)) usage(void)
{
	FILE *out = stdout;
	fprintf(out,
		_("Usage: %s [options] device [block-count]\n"),
		program_invocation_short_name);

	fputs(USAGE_SEPARATOR, out);
	fputs(_("Make an SCO bfs filesystem.\n"), out);

	fprintf(out, _("\nOptions:\n"
		       " -N, --inodes=NUM    specify desired number of inodes\n"
		       " -V, --vname=NAME    specify volume name\n"
		       " -F, --fname=NAME    specify file system name\n"
		       " -v, --verbose       explain what is being done\n"
		       " -c                  this option is silently ignored\n"
		       " -l                  this option is silently ignored\n"
		       " --lock[=<mode>]     use exclusive device lock (yes, no or nonblock)\n"
		       ));
	printf(USAGE_HELP_OPTIONS(21));

	printf(USAGE_MAN_TAIL("mkfs.bfs(8)"));
	exit(EXIT_SUCCESS);
}

int main(int argc, char **argv)
{
	char *device, *volume, *fsname;
	char *lockmode = 0;
	long inodes;
	unsigned long long total_blocks, ino_bytes, ino_blocks, data_blocks;
	unsigned long long user_specified_total_blocks = 0;
	int verbose = 0;
	int fd;
	uint32_t first_block;
	struct bfssb sb;
	struct bfsi ri;
	struct bfsde de;
	struct stat statbuf;
	time_t now;
	int c, i, len;

	enum {
	    VERSION_OPTION = CHAR_MAX + 1,
	    OPT_LOCK
	};
	static const struct option longopts[] = {
		{"inodes", required_argument, NULL, 'N'},
		{"vname", required_argument, NULL, 'V'},
		{"fname", required_argument, NULL, 'F'},
		{"verbose", no_argument, NULL, 'v'},
		{"version", no_argument, NULL, VERSION_OPTION},
		{"help", no_argument, NULL, 'h'},
		{"lock", optional_argument, NULL, OPT_LOCK},
		{NULL, 0, NULL, 0}
	};

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);
	close_stdout_atexit();

	if (argc < 2) {
		warnx(_("not enough arguments"));
		errtryhelp(EXIT_FAILURE);
	}
	if (argc == 2 && !strcmp(argv[1], "-V"))
		print_version(EXIT_SUCCESS);

	volume = fsname = "      ";	/* is there a default? */
	inodes = 0;

	while ((c = getopt_long(argc, argv, "N:V:F:vhcl", longopts, NULL)) != -1) {
		switch (c) {
		case 'N':
			inodes = strtol_or_err(optarg, _("invalid number of inodes"));
			break;

		case 'V':
			len = strlen(optarg);
			if (len <= 0 || len > 6)
				errx(EXIT_FAILURE, _("volume name too long"));
			volume = xstrdup(optarg);
			break;

		case 'F':
			len = strlen(optarg);
			if (len <= 0 || len > 6)
				errx(EXIT_FAILURE, _("fsname name too long"));
			fsname = xstrdup(optarg);
			break;

		case 'v':
			verbose = 1;
			break;

		case 'c':
		case 'l':
			/* when called via mkfs we may get options c,l,v */
			break;

                case OPT_LOCK:
			lockmode = "1";
			if (optarg) {
				if (*optarg == '=')
					optarg++;
				lockmode = optarg;
			}
			break;

		case VERSION_OPTION:
			print_version(EXIT_SUCCESS);
		case 'h':
			usage();
		default:
			errtryhelp(EXIT_FAILURE);
		}
	}

	if (optind == argc) {
		warnx(_("no device specified"));
		errtryhelp(EXIT_FAILURE);
	}

	device = argv[optind++];

	if (stat(device, &statbuf) < 0)
		err(EXIT_FAILURE, _("stat of %s failed"), device);

	fd = open_blkdev_or_file(&statbuf, device, O_RDWR);
	if (fd < 0)
		err(EXIT_FAILURE, _("cannot open %s"), device);

	if (blkdev_lock(fd, device, lockmode) != 0)
		exit(MKFS_EX_ERROR);

	if (optind == argc - 1)
		user_specified_total_blocks =
			strtou64_or_err(argv[optind], _("invalid block-count"));
	else if (optind != argc) {
		warnx(_("bad usage"));
		errtryhelp(EXIT_FAILURE);
	}

	if (blkdev_get_sectors(fd, &total_blocks) == -1) {
		if (!user_specified_total_blocks)
			err(EXIT_FAILURE, _("cannot get size of %s"), device);
		total_blocks = user_specified_total_blocks;
	} else if (user_specified_total_blocks) {
		if (user_specified_total_blocks > total_blocks)
			errx(EXIT_FAILURE,
			     _("blocks argument too large, max is %llu"),
			     total_blocks);
		total_blocks = user_specified_total_blocks;
	}

	if (!inodes) {
		/* pick some reasonable default */
		inodes = 8 * (total_blocks / 800);
		if (inodes < 48)
			inodes = 48;
		if (512 < inodes)
			inodes = 512;
	} else {
		/* believe the user */
		if (512 < inodes)
			errx(EXIT_FAILURE, _("too many inodes - max is 512"));
	}

	ino_bytes = inodes * sizeof(struct bfsi);
	ino_blocks = (ino_bytes + BFS_BLOCKSIZE - 1) / BFS_BLOCKSIZE;
	data_blocks = total_blocks - ino_blocks - 1;

	/* mimic the behavior of SCO's mkfs - maybe this limit is needed */
	if (data_blocks < 32)
		errx(EXIT_FAILURE,
		     _("not enough space, need at least %llu blocks"),
		     ino_blocks + 33);

	memset(&sb, 0, sizeof(sb));
	sb.s_magic = cpu_to_le32(BFS_SUPER_MAGIC);
	sb.s_start = cpu_to_le32(ino_bytes + sizeof(struct bfssb));
	sb.s_end = cpu_to_le32(total_blocks * BFS_BLOCKSIZE - 1);
	sb.s_from = sb.s_to = sb.s_backup_from = sb.s_backup_to = -1;
	memcpy(sb.s_fsname, fsname, 6);
	memcpy(sb.s_volume, volume, 6);

	if (verbose) {
		fprintf(stderr, _("Device: %s\n"), device);
		fprintf(stderr, _("Volume: <%-6s>\n"), volume);
		fprintf(stderr, _("FSname: <%-6s>\n"), fsname);
		fprintf(stderr, _("BlockSize: %d\n"), BFS_BLOCKSIZE);
		if (ino_blocks == 1)
			fprintf(stderr, _("Inodes: %ld (in 1 block)\n"),
				inodes);
		else
			fprintf(stderr, _("Inodes: %ld (in %llu blocks)\n"),
				inodes, ino_blocks);
		fprintf(stderr, _("Blocks: %llu\n"), total_blocks);
		fprintf(stderr, _("Inode end: %d, Data end: %d\n"),
			le32_to_cpu(sb.s_start) - 1, le32_to_cpu(sb.s_end));
	}

	if (write(fd, &sb, sizeof(sb)) != sizeof(sb))
		err(EXIT_FAILURE, _("error writing superblock"));

	memset(&ri, 0, sizeof(ri));
	ri.i_ino = cpu_to_le16(BFS_ROOT_INO);
	first_block = 1 + ino_blocks;
	ri.i_first_block = cpu_to_le32(first_block);
	ri.i_last_block = cpu_to_le32(first_block +
	    (inodes * sizeof(de) - 1) / BFS_BLOCKSIZE);
	ri.i_bytes_to_end = cpu_to_le32(first_block * BFS_BLOCKSIZE
	    + 2 * sizeof(struct bfsde) - 1);
	ri.i_type = cpu_to_le32(BFS_DIR_TYPE);
	ri.i_mode = cpu_to_le32(S_IFDIR | 0755);	/* or just 0755 */
	ri.i_uid = cpu_to_le32(0);
	ri.i_gid = cpu_to_le32(1);			/* random */
	ri.i_nlinks = 2;
	time(&now);
	ri.i_atime = cpu_to_le32(now);
	ri.i_mtime = cpu_to_le32(now);
	ri.i_ctime = cpu_to_le32(now);

	if (write(fd, &ri, sizeof(ri)) != sizeof(ri))
		err(EXIT_FAILURE, _("error writing root inode"));

	memset(&ri, 0, sizeof(ri));
	for (i = 1; i < inodes; i++)
		if (write(fd, &ri, sizeof(ri)) != sizeof(ri))
			err(EXIT_FAILURE, _("error writing inode"));

	if (lseek(fd, (1 + ino_blocks) * BFS_BLOCKSIZE, SEEK_SET) == -1)
		err(EXIT_FAILURE, _("seek error"));

	memset(&de, 0, sizeof(de));
	de.d_ino = cpu_to_le16(BFS_ROOT_INO);
	memcpy(de.d_name, ".", 1);
	if (write(fd, &de, sizeof(de)) != sizeof(de))
		err(EXIT_FAILURE, _("error writing . entry"));

	memcpy(de.d_name, "..", 2);
	if (write(fd, &de, sizeof(de)) != sizeof(de))
		err(EXIT_FAILURE, _("error writing .. entry"));

	if (close_fd(fd) != 0)
		err(EXIT_FAILURE, _("error closing %s"), device);

	return EXIT_SUCCESS;
}
Commit	Line	Data
eb63b9b8 KZ	1	/*
	2	* mkfs.bfs - Create SCO BFS filesystem - aeb, 1999-09-07
	3	*
9d07f58d	4	* Usage: mkfs.bfs [-N nr-of-inodes] [-V volume-name] [-F fsname] device
eb63b9b8 KZ	5	*/
eb63b9b8 KZ	6
6496cb07 SK	7	#include <errno.h>
	8	#include <fcntl.h>
	9	#include <getopt.h>
	10	#include <limits.h>
eb63b9b8 KZ	11	#include <stdio.h>
eb63b9b8 KZ	12	#include <stdlib.h>
eb63b9b8	13	#include <string.h>
6496cb07	14	#include <sys/stat.h>
eb63b9b8	15	#include <time.h>
6496cb07	16	#include <unistd.h>
c36f105d	17
6496cb07	18	#include "blkdev.h"
c36f105d	19	#include "c.h"
45ca68ec	20	#include "closestream.h"
66ee8158	21	#include "nls.h"
b7e27117	22	#include "strutils.h"
e0c67b83	23	#include "xalloc.h"
9d07f58d	24	#include "bitops.h"
cc4fefc6	25	#include "exitcodes.h"
eb63b9b8	26
eb63b9b8 KZ	27	#define BFS_ROOT_INO 2
	28	#define BFS_NAMELEN 14
	29	#define BFS_BLOCKSIZE 512
	30	#define BFS_SUPER_MAGIC 0x1badface
	31
	32	/* superblock - 512 bytes */
	33	struct bfssb {
9d07f58d	34	uint32_t s_magic;
	35	uint32_t s_start; /* byte offset of start of data */
	36	uint32_t s_end; /* sizeof(slice)-1 */
6496cb07 SK	37
6496cb07 SK	38	/* for recovery during compaction */
9d07f58d	39	uint32_t s_from, s_to; /* src and dest block of current transfer */
9d07f58d	40	int32_t s_backup_from, s_backup_to;
6496cb07 SK	41
	42	/* labels - may well contain garbage */
	43	char s_fsname[6];
	44	char s_volume[6];
	45	char s_pad[472];
eb63b9b8 KZ	46	};
	47
	48	/* inode - 64 bytes */
	49	struct bfsi {
9d07f58d	50	uint16_t i_ino;
6496cb07	51	unsigned char i_pad1[2];
9d07f58d	52	uint32_t i_first_block;
	53	uint32_t i_last_block;
	54	uint32_t i_bytes_to_end;
	55	uint32_t i_type; /* 1: file, 2: the unique dir */
	56	uint32_t i_mode;
	57	uint32_t i_uid, i_gid;
	58	uint32_t i_nlinks;
	59	uint32_t i_atime, i_mtime, i_ctime;
6496cb07	60	unsigned char i_pad2[16];
eb63b9b8 KZ	61	};
	62
	63	#define BFS_DIR_TYPE 2
	64
	65	/* directory entry - 16 bytes */
	66	struct bfsde {
9d07f58d	67	uint16_t d_ino;
de8b064b	68	char d_name[BFS_NAMELEN];
eb63b9b8 KZ	69	};
eb63b9b8 KZ	70
6e1eda6f	71	static void __attribute__((__noreturn__)) usage(void)
de8b064b	72	{
6e1eda6f	73	FILE *out = stdout;
de8b064b SK	74	fprintf(out,
	75	_("Usage: %s [options] device [block-count]\n"),
	76	program_invocation_short_name);
451dbcfa BS	77
	78	fputs(USAGE_SEPARATOR, out);
	79	fputs(_("Make an SCO bfs filesystem.\n"), out);
	80
de8b064b SK	81	fprintf(out, _("\nOptions:\n"
	82	" -N, --inodes=NUM specify desired number of inodes\n"
	83	" -V, --vname=NAME specify volume name\n"
	84	" -F, --fname=NAME specify file system name\n"
	85	" -v, --verbose explain what is being done\n"
	86	" -c this option is silently ignored\n"
	87	" -l this option is silently ignored\n"
bd0c8c85	88	" --lock[=<mode>] use exclusive device lock (yes, no or nonblock)\n"
b3054454	89	));
f45f3ec3	90	printf(USAGE_HELP_OPTIONS(21));
de8b064b	91
f45f3ec3	92	printf(USAGE_MAN_TAIL("mkfs.bfs(8)"));
6e1eda6f	93	exit(EXIT_SUCCESS);
de8b064b	94	}
eb63b9b8	95
6496cb07 SK	96	int main(int argc, char **argv)
6496cb07 SK	97	{
eb63b9b8	98	char device, volume, *fsname;
cc4fefc6	99	char *lockmode = 0;
b7e27117	100	long inodes;
098fa6b1 ST	101	unsigned long long total_blocks, ino_bytes, ino_blocks, data_blocks;
098fa6b1 ST	102	unsigned long long user_specified_total_blocks = 0;
eb63b9b8 KZ	103	int verbose = 0;
eb63b9b8 KZ	104	int fd;
9d07f58d	105	uint32_t first_block;
eb63b9b8 KZ	106	struct bfssb sb;
	107	struct bfsi ri;
	108	struct bfsde de;
	109	struct stat statbuf;
	110	time_t now;
	111	int c, i, len;
eb63b9b8	112
cc4fefc6	113	enum {
	114	VERSION_OPTION = CHAR_MAX + 1,
	115	OPT_LOCK
	116	};
de8b064b SK	117	static const struct option longopts[] = {
	118	{"inodes", required_argument, NULL, 'N'},
	119	{"vname", required_argument, NULL, 'V'},
	120	{"fname", required_argument, NULL, 'F'},
	121	{"verbose", no_argument, NULL, 'v'},
	122	{"version", no_argument, NULL, VERSION_OPTION},
	123	{"help", no_argument, NULL, 'h'},
cc4fefc6	124	{"lock", optional_argument, NULL, OPT_LOCK},
de8b064b SK	125	{NULL, 0, NULL, 0}
de8b064b SK	126	};
eb63b9b8	127
88ffbf86 DB	128	setlocale(LC_ALL, "");
	129	bindtextdomain(PACKAGE, LOCALEDIR);
	130	textdomain(PACKAGE);
2c308875	131	close_stdout_atexit();
88ffbf86	132
6e1eda6f RM	133	if (argc < 2) {
	134	warnx(_("not enough arguments"));
	135	errtryhelp(EXIT_FAILURE);
	136	}
de8b064b	137	if (argc == 2 && !strcmp(argv[1], "-V"))
68224d10	138	print_version(EXIT_SUCCESS);
eb63b9b8 KZ	139
	140	volume = fsname = " "; /* is there a default? */
	141	inodes = 0;
	142
de8b064b	143	while ((c = getopt_long(argc, argv, "N:V:F:vhcl", longopts, NULL)) != -1) {
eb63b9b8 KZ	144	switch (c) {
eb63b9b8 KZ	145	case 'N':
b7e27117	146	inodes = strtol_or_err(optarg, _("invalid number of inodes"));
eb63b9b8 KZ	147	break;
	148
	149	case 'V':
	150	len = strlen(optarg);
	151	if (len <= 0 \|\| len > 6)
c36f105d	152	errx(EXIT_FAILURE, _("volume name too long"));
e0c67b83	153	volume = xstrdup(optarg);
eb63b9b8 KZ	154	break;
	155
	156	case 'F':
	157	len = strlen(optarg);
	158	if (len <= 0 \|\| len > 6)
c36f105d	159	errx(EXIT_FAILURE, _("fsname name too long"));
e0c67b83	160	fsname = xstrdup(optarg);
eb63b9b8 KZ	161	break;
	162
	163	case 'v':
	164	verbose = 1;
	165	break;
	166
eb63b9b8 KZ	167	case 'c':
eb63b9b8 KZ	168	case 'l':
6496cb07	169	/* when called via mkfs we may get options c,l,v */
eb63b9b8 KZ	170	break;
eb63b9b8 KZ	171
cc4fefc6	172	case OPT_LOCK:
	173	lockmode = "1";
	174	if (optarg) {
	175	if (*optarg == '=')
	176	optarg++;
	177	lockmode = optarg;
	178	}
	179	break;
	180
de8b064b	181	case VERSION_OPTION:
68224d10	182	print_version(EXIT_SUCCESS);
de8b064b	183	case 'h':
6e1eda6f	184	usage();
eb63b9b8	185	default:
677ec86c	186	errtryhelp(EXIT_FAILURE);
eb63b9b8 KZ	187	}
	188	}
	189
6e1eda6f RM	190	if (optind == argc) {
	191	warnx(_("no device specified"));
	192	errtryhelp(EXIT_FAILURE);
	193	}
eb63b9b8 KZ	194
	195	device = argv[optind++];
	196
6496cb07	197	if (stat(device, &statbuf) < 0)
fc14ceba	198	err(EXIT_FAILURE, _("stat of %s failed"), device);
eb63b9b8	199
5fc7694a	200	fd = open_blkdev_or_file(&statbuf, device, O_RDWR);
6496cb07	201	if (fd < 0)
c36f105d	202	err(EXIT_FAILURE, _("cannot open %s"), device);
eb63b9b8	203
cc4fefc6	204	if (blkdev_lock(fd, device, lockmode) != 0)
	205	exit(MKFS_EX_ERROR);
	206
6496cb07 SK	207	if (optind == argc - 1)
6496cb07 SK	208	user_specified_total_blocks =
33fb5cfd	209	strtou64_or_err(argv[optind], _("invalid block-count"));
6e1eda6f RM	210	else if (optind != argc) {
	211	warnx(_("bad usage"));
	212	errtryhelp(EXIT_FAILURE);
	213	}
eb63b9b8	214
098fa6b1	215	if (blkdev_get_sectors(fd, &total_blocks) == -1) {
c36f105d SK	216	if (!user_specified_total_blocks)
c36f105d SK	217	err(EXIT_FAILURE, _("cannot get size of %s"), device);
eb63b9b8 KZ	218	total_blocks = user_specified_total_blocks;
	219	} else if (user_specified_total_blocks) {
	220	if (user_specified_total_blocks > total_blocks)
6496cb07 SK	221	errx(EXIT_FAILURE,
	222	_("blocks argument too large, max is %llu"),
	223	total_blocks);
eb63b9b8 KZ	224	total_blocks = user_specified_total_blocks;
	225	}
	226
	227	if (!inodes) {
	228	/* pick some reasonable default */
6496cb07	229	inodes = 8 * (total_blocks / 800);
eb63b9b8 KZ	230	if (inodes < 48)
eb63b9b8 KZ	231	inodes = 48;
6496cb07	232	if (512 < inodes)
eb63b9b8 KZ	233	inodes = 512;
	234	} else {
	235	/* believe the user */
6496cb07	236	if (512 < inodes)
c36f105d	237	errx(EXIT_FAILURE, _("too many inodes - max is 512"));
eb63b9b8 KZ	238	}
	239
	240	ino_bytes = inodes * sizeof(struct bfsi);
	241	ino_blocks = (ino_bytes + BFS_BLOCKSIZE - 1) / BFS_BLOCKSIZE;
	242	data_blocks = total_blocks - ino_blocks - 1;
	243
ee312c65	244	/* mimic the behavior of SCO's mkfs - maybe this limit is needed */
eb63b9b8	245	if (data_blocks < 32)
6496cb07 SK	246	errx(EXIT_FAILURE,
	247	_("not enough space, need at least %llu blocks"),
	248	ino_blocks + 33);
eb63b9b8 KZ	249
eb63b9b8 KZ	250	memset(&sb, 0, sizeof(sb));
9d07f58d	251	sb.s_magic = cpu_to_le32(BFS_SUPER_MAGIC);
	252	sb.s_start = cpu_to_le32(ino_bytes + sizeof(struct bfssb));
	253	sb.s_end = cpu_to_le32(total_blocks * BFS_BLOCKSIZE - 1);
eb63b9b8 KZ	254	sb.s_from = sb.s_to = sb.s_backup_from = sb.s_backup_to = -1;
	255	memcpy(sb.s_fsname, fsname, 6);
	256	memcpy(sb.s_volume, volume, 6);
	257
	258	if (verbose) {
66ee8158 KZ	259	fprintf(stderr, _("Device: %s\n"), device);
	260	fprintf(stderr, _("Volume: <%-6s>\n"), volume);
	261	fprintf(stderr, _("FSname: <%-6s>\n"), fsname);
	262	fprintf(stderr, _("BlockSize: %d\n"), BFS_BLOCKSIZE);
6496cb07	263	if (ino_blocks == 1)
e3ca1312	264	fprintf(stderr, _("Inodes: %ld (in 1 block)\n"),
66ee8158 KZ	265	inodes);
66ee8158 KZ	266	else
e3ca1312	267	fprintf(stderr, _("Inodes: %ld (in %llu blocks)\n"),
66ee8158	268	inodes, ino_blocks);
e3ca1312	269	fprintf(stderr, _("Blocks: %llu\n"), total_blocks);
66ee8158	270	fprintf(stderr, _("Inode end: %d, Data end: %d\n"),
9d07f58d	271	le32_to_cpu(sb.s_start) - 1, le32_to_cpu(sb.s_end));
eb63b9b8 KZ	272	}
	273
	274	if (write(fd, &sb, sizeof(sb)) != sizeof(sb))
e5794f54	275	err(EXIT_FAILURE, _("error writing superblock"));
eb63b9b8 KZ	276
eb63b9b8 KZ	277	memset(&ri, 0, sizeof(ri));
9d07f58d	278	ri.i_ino = cpu_to_le16(BFS_ROOT_INO);
	279	first_block = 1 + ino_blocks;
	280	ri.i_first_block = cpu_to_le32(first_block);
	281	ri.i_last_block = cpu_to_le32(first_block +
	282	(inodes * sizeof(de) - 1) / BFS_BLOCKSIZE);
	283	ri.i_bytes_to_end = cpu_to_le32(first_block * BFS_BLOCKSIZE
	284	+ 2 * sizeof(struct bfsde) - 1);
	285	ri.i_type = cpu_to_le32(BFS_DIR_TYPE);
	286	ri.i_mode = cpu_to_le32(S_IFDIR \| 0755); /* or just 0755 */
	287	ri.i_uid = cpu_to_le32(0);
	288	ri.i_gid = cpu_to_le32(1); /* random */
eb63b9b8 KZ	289	ri.i_nlinks = 2;
eb63b9b8 KZ	290	time(&now);
9d07f58d	291	ri.i_atime = cpu_to_le32(now);
	292	ri.i_mtime = cpu_to_le32(now);
	293	ri.i_ctime = cpu_to_le32(now);
eb63b9b8 KZ	294
eb63b9b8 KZ	295	if (write(fd, &ri, sizeof(ri)) != sizeof(ri))
e5794f54	296	err(EXIT_FAILURE, _("error writing root inode"));
eb63b9b8 KZ	297
eb63b9b8 KZ	298	memset(&ri, 0, sizeof(ri));
6496cb07	299	for (i = 1; i < inodes; i++)
eb63b9b8	300	if (write(fd, &ri, sizeof(ri)) != sizeof(ri))
e5794f54	301	err(EXIT_FAILURE, _("error writing inode"));
eb63b9b8	302
6496cb07	303	if (lseek(fd, (1 + ino_blocks) * BFS_BLOCKSIZE, SEEK_SET) == -1)
e5794f54	304	err(EXIT_FAILURE, _("seek error"));
eb63b9b8 KZ	305
eb63b9b8 KZ	306	memset(&de, 0, sizeof(de));
9d07f58d	307	de.d_ino = cpu_to_le16(BFS_ROOT_INO);
eb63b9b8 KZ	308	memcpy(de.d_name, ".", 1);
eb63b9b8 KZ	309	if (write(fd, &de, sizeof(de)) != sizeof(de))
e5794f54	310	err(EXIT_FAILURE, _("error writing . entry"));
eb63b9b8 KZ	311
	312	memcpy(de.d_name, "..", 2);
	313	if (write(fd, &de, sizeof(de)) != sizeof(de))
e5794f54	314	err(EXIT_FAILURE, _("error writing .. entry"));
eb63b9b8	315
0dfd626f	316	if (close_fd(fd) != 0)
c36f105d	317	err(EXIT_FAILURE, _("error closing %s"), device);
eb63b9b8	318
c36f105d	319	return EXIT_SUCCESS;
eb63b9b8	320	}