/*
* mkfs.bfs - Create SCO BFS filesystem - aeb, 1999-09-07
*
- * Usage: mkfs.bfs [-N nr-of-inodes] [-V volume-name] [-F fsname] device
+ * 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 <unistd.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <errno.h>
#include <string.h>
+#include <sys/stat.h>
#include <time.h>
-#include "nls.h"
+#include <unistd.h>
-/* cannot include <linux/fs.h> */
-#ifndef BLKGETSIZE
-#define BLKGETSIZE _IO(0x12,96) /* return device size */
-#endif
+#include "blkdev.h"
+#include "c.h"
+#include "closestream.h"
+#include "nls.h"
+#include "strutils.h"
+#include "xalloc.h"
+#include "bitops.h"
#define BFS_ROOT_INO 2
#define BFS_NAMELEN 14
/* superblock - 512 bytes */
struct bfssb {
- unsigned int s_magic;
- unsigned int s_start; /* byte offset of start of data */
- unsigned int s_end; /* sizeof(slice)-1 */
-
- /* for recovery during compaction */
- int s_from, s_to; /* src and dest block of current transfer */
- int s_backup_from, s_backup_to;
-
- /* labels - may well contain garbage */
- char s_fsname[6];
- char s_volume[6];
- char s_pad[472];
+ 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 {
- unsigned short i_ino;
- unsigned char i_pad1[2];
- unsigned long i_first_block;
- unsigned long i_last_block;
- unsigned long i_bytes_to_end;
- unsigned long i_type; /* 1: file, 2: the unique dir */
- unsigned long i_mode;
- unsigned long i_uid, i_gid;
- unsigned long i_nlinks;
- unsigned long i_atime, i_mtime, i_ctime;
- unsigned char i_pad2[16];
+ 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 {
- unsigned short d_ino;
- char d_name[BFS_NAMELEN];
+ uint16_t d_ino;
+ char d_name[BFS_NAMELEN];
};
-
-static char *progname;
-
-static void
-fatal(char *s, ...) {
- va_list p;
-
- va_start(p, s);
- fflush(stdout);
- fprintf(stderr, "\n%s: ", progname);
- vfprintf(stderr, s, p);
- va_end(p);
- fprintf(stderr, "\n");
- exit(1);
+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"
+ ));
+ printf(USAGE_HELP_OPTIONS(21));
+
+ printf(USAGE_MAN_TAIL("mkfs.bfs(8)"));
+ exit(EXIT_SUCCESS);
}
-static void
-usage(void) {
- fprintf(stderr, _(
- "Usage: %s [-v] [-N nr-of-inodes] [-V volume-name]\n"
- " [-F fsname] device [block-count]\n"),
- progname);
- exit(1);
+static void __attribute__ ((__noreturn__)) print_version(void)
+{
+ printf(UTIL_LINUX_VERSION);
+ exit(EXIT_SUCCESS);
}
-int
-main(int argc, char *argv[]) {
+int main(int argc, char **argv)
+{
char *device, *volume, *fsname;
- int inodes;
- unsigned long total_blocks, ino_bytes, ino_blocks, data_blocks;
- unsigned long user_specified_total_blocks = 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;
- char *p;
-
- progname = argv[0];
- if ((p = strrchr(progname, '/')) != NULL)
- progname = p+1;
-
- if (argc < 2)
- usage();
- if (argc == 2 &&
- (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) {
- printf(_("%s (%s)\n"), progname, PACKAGE_STRING);
- exit(0);
+ enum { VERSION_OPTION = CHAR_MAX + 1 };
+ 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'},
+ {NULL, 0, NULL, 0}
+ };
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+ atexit(close_stdout);
+
+ if (argc < 2) {
+ warnx(_("not enough arguments"));
+ errtryhelp(EXIT_FAILURE);
}
+ if (argc == 2 && !strcmp(argv[1], "-V"))
+ print_version();
volume = fsname = " "; /* is there a default? */
inodes = 0;
- while ((c = getopt(argc, argv, "vF:N:V:cl:")) != -1) {
+ while ((c = getopt_long(argc, argv, "N:V:F:vhcl", longopts, NULL)) != -1) {
switch (c) {
case 'N':
- inodes = atol(optarg);
+ inodes = strtol_or_err(optarg, _("invalid number of inodes"));
break;
case 'V':
len = strlen(optarg);
if (len <= 0 || len > 6)
- fatal(_("volume name too long"));
- volume = strdup(optarg);
+ errx(EXIT_FAILURE, _("volume name too long"));
+ volume = xstrdup(optarg);
break;
case 'F':
len = strlen(optarg);
if (len <= 0 || len > 6)
- fatal(_("fsname name too long"));
- fsname = strdup(optarg);
+ errx(EXIT_FAILURE, _("fsname name too long"));
+ fsname = xstrdup(optarg);
break;
case 'v':
verbose = 1;
break;
- /* when called via mkfs we may get options c,l,v */
case 'c':
case 'l':
+ /* when called via mkfs we may get options c,l,v */
break;
- default:
+ case VERSION_OPTION:
+ print_version();
+ case 'h':
usage();
+ default:
+ errtryhelp(EXIT_FAILURE);
}
}
- if (optind == argc)
- usage();
+ if (optind == argc) {
+ warnx(_("no device specified"));
+ errtryhelp(EXIT_FAILURE);
+ }
device = argv[optind++];
- if (stat(device, &statbuf) == -1) {
- perror(device);
- fatal(_("cannot stat device %s"), device);
- }
+ if (stat(device, &statbuf) < 0)
+ err(EXIT_FAILURE, _("stat of %s failed"), device);
- if (!S_ISBLK(statbuf.st_mode))
- fatal(_("%s is not a block special device"), device);
+ fd = open_blkdev_or_file(&statbuf, device, O_RDWR);
+ if (fd < 0)
+ err(EXIT_FAILURE, _("cannot open %s"), device);
- fd = open(device, O_RDWR | O_EXCL);
- if (fd == -1) {
- perror(device);
- fatal(_("cannot open %s"), device);
+ 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 (optind == argc-1)
- user_specified_total_blocks = atoi(argv[optind]);
- else if (optind != argc)
- usage();
-
- if (ioctl(fd, BLKGETSIZE, &total_blocks) == -1) {
- if (!user_specified_total_blocks) {
- perror("BLKGETSIZE");
- fatal(_("cannot get size of %s"), device);
- }
+ 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)
- fatal(_("blocks argument too large, max is %lu"),
- 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);
+ inodes = 8 * (total_blocks / 800);
if (inodes < 48)
inodes = 48;
- if (inodes > 512)
+ if (512 < inodes)
inodes = 512;
} else {
/* believe the user */
- if (inodes > 512)
- fatal(_("too many inodes - max is 512"));
+ 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 behaviour of SCO's mkfs - maybe this limit is needed */
+ /* mimic the behavior of SCO's mkfs - maybe this limit is needed */
if (data_blocks < 32)
- fatal(_("not enough space, need at least %lu blocks"),
- ino_blocks + 33);
+ errx(EXIT_FAILURE,
+ _("not enough space, need at least %llu blocks"),
+ ino_blocks + 33);
memset(&sb, 0, sizeof(sb));
- sb.s_magic = BFS_SUPER_MAGIC;
- sb.s_start = ino_bytes + sizeof(struct bfssb);
- sb.s_end = total_blocks * BFS_BLOCKSIZE - 1;
+ 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);
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: %d (in 1 block)\n"),
+ if (ino_blocks == 1)
+ fprintf(stderr, _("Inodes: %ld (in 1 block)\n"),
inodes);
else
- fprintf(stderr, _("Inodes: %d (in %ld blocks)\n"),
+ fprintf(stderr, _("Inodes: %ld (in %llu blocks)\n"),
inodes, ino_blocks);
- fprintf(stderr, _("Blocks: %ld\n"), total_blocks);
+ fprintf(stderr, _("Blocks: %llu\n"), total_blocks);
fprintf(stderr, _("Inode end: %d, Data end: %d\n"),
- sb.s_start-1, sb.s_end);
+ le32_to_cpu(sb.s_start) - 1, le32_to_cpu(sb.s_end));
}
if (write(fd, &sb, sizeof(sb)) != sizeof(sb))
- fatal(_("error writing superblock"));
+ err(EXIT_FAILURE, _("error writing superblock"));
memset(&ri, 0, sizeof(ri));
- ri.i_ino = BFS_ROOT_INO;
- ri.i_first_block = 1 + ino_blocks;
- ri.i_last_block = ri.i_first_block +
- (inodes * sizeof(de) - 1) / BFS_BLOCKSIZE;
- ri.i_bytes_to_end = ri.i_first_block * BFS_BLOCKSIZE
- + 2 * sizeof(struct bfsde) - 1;
- ri.i_type = BFS_DIR_TYPE;
- ri.i_mode = S_IFDIR | 0755; /* or just 0755 */
- ri.i_uid = 0;
- ri.i_gid = 1; /* random */
+ 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 = now;
- ri.i_mtime = now;
- ri.i_ctime = 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))
- fatal(_("error writing root inode"));
+ err(EXIT_FAILURE, _("error writing root inode"));
memset(&ri, 0, sizeof(ri));
- for (i=1; i<inodes; i++)
+ for (i = 1; i < inodes; i++)
if (write(fd, &ri, sizeof(ri)) != sizeof(ri))
- fatal(_("error writing inode"));
+ err(EXIT_FAILURE, _("error writing inode"));
- if (lseek(fd, (1 + ino_blocks)*BFS_BLOCKSIZE, SEEK_SET) == -1)
- fatal(_("seek error"));
+ if (lseek(fd, (1 + ino_blocks) * BFS_BLOCKSIZE, SEEK_SET) == -1)
+ err(EXIT_FAILURE, _("seek error"));
memset(&de, 0, sizeof(de));
- de.d_ino = BFS_ROOT_INO;
+ de.d_ino = cpu_to_le16(BFS_ROOT_INO);
memcpy(de.d_name, ".", 1);
if (write(fd, &de, sizeof(de)) != sizeof(de))
- fatal(_("error writing . entry"));
+ err(EXIT_FAILURE, _("error writing . entry"));
memcpy(de.d_name, "..", 2);
if (write(fd, &de, sizeof(de)) != sizeof(de))
- fatal(_("error writing .. entry"));
+ err(EXIT_FAILURE, _("error writing .. entry"));
- if (close(fd) == -1) {
- perror(device);
- fatal(_("error closing %s"), device);
- }
+ if (close_fd(fd) != 0)
+ err(EXIT_FAILURE, _("error closing %s"), device);
- return 0;
+ return EXIT_SUCCESS;
}