Пример #1
0
/*
 * Tries to mount any of the consecutive fstab entries that match
 * the mountpoint of the one given by fstab->recs[start_idx].
 *
 * end_idx: On return, will be the last rec that was looked at.
 * attempted_idx: On return, will indicate which fstab rec
 *     succeeded. In case of failure, it will be the start_idx.
 * Returns
 *   -1 on failure with errno set to match the 1st mount failure.
 *   0 on success.
 */
static int mount_with_alternatives(struct fstab *fstab, int start_idx, int *end_idx, int *attempted_idx, int encryptable)
{
    int i;
    int mount_errno = 0;
    int mounted = 0;

    if (!end_idx || !attempted_idx || start_idx >= fstab->num_entries) {
      errno = EINVAL;
      if (end_idx) *end_idx = start_idx;
      if (attempted_idx) *end_idx = start_idx;
      return -1;
    }

    /* Hunt down an fstab entry for the same mount point that might succeed */
    for (i = start_idx;
         /* We required that fstab entries for the same mountpoint be consecutive */
         i < fstab->num_entries && !strcmp(fstab->recs[start_idx].mount_point, fstab->recs[i].mount_point);
         i++) {
            /*
             * Don't try to mount/encrypt the same mount point again.
             * Deal with alternate entries for the same point which are required to be all following
             * each other.
             */
            if (mounted) {
                ERROR("%s(): skipping fstab dup mountpoint=%s rec[%d].fs_type=%s already mounted as %s.\n", __func__,
                     fstab->recs[i].mount_point, i, fstab->recs[i].fs_type, fstab->recs[*attempted_idx].fs_type);
                continue;
            }
#ifdef MTK_FSTAB_FLAGS
            if((!(fstab->recs[i].fs_mgr_flags & MF_FORCECRYPT)) && (fstab->recs[i].fs_mgr_flags & MF_AUTOFORMAT)) {
                format_fs(fstab->recs[i].blk_device, fstab->recs[i].fs_type,
                       fstab->recs[i].mount_point, fstab->recs[i].length);
            }

            if(fstab->recs[i].fs_mgr_flags & MF_RESIZE) {
                resize_fs(fstab->recs[i].blk_device, fstab->recs[i].key_loc);
            }
#endif

            if (fstab->recs[i].fs_mgr_flags & MF_CHECK) {
                check_fs(fstab->recs[i].blk_device, fstab->recs[i].fs_type,
                         fstab->recs[i].mount_point);
            }
            if (!__mount(fstab->recs[i].blk_device, fstab->recs[i].mount_point, &fstab->recs[i], encryptable)) {
                *attempted_idx = i;
                mounted = 1;
                if (i != start_idx) {
                    ERROR("%s(): Mounted %s on %s with fs_type=%s instead of %s\n", __func__,
                         fstab->recs[i].blk_device, fstab->recs[i].mount_point, fstab->recs[i].fs_type,
                         fstab->recs[start_idx].fs_type);
                }
            } else {
                /* back up errno for crypto decisions */
                mount_errno = errno;
            }
    }

    /* Adjust i for the case where it was still withing the recs[] */
    if (i < fstab->num_entries) --i;

    *end_idx = i;
    if (!mounted) {
        *attempted_idx = start_idx;
        errno = mount_errno;
        return -1;
    }
    return 0;
}
int main (int argc, char ** argv)
{
	errcode_t	retval;
	ext2_filsys	fs;
	int		c;
	int		flags = 0;
	int		flush = 0;
	int		force = 0;
	int		io_flags = 0;
	int		force_min_size = 0;
	int		print_min_size = 0;
	int		fd, ret;
	blk64_t		new_size = 0;
	blk64_t		max_size = 0;
	blk64_t		min_size = 0;
	io_manager	io_ptr;
	char		*new_size_str = 0;
	int		use_stride = -1;
	ext2fs_struct_stat st_buf;
	__s64		new_file_size;
	unsigned int	sys_page_size = 4096;
	long		sysval;
	int		len, mount_flags;
	char		*mtpt;

#ifdef ENABLE_NLS
	setlocale(LC_MESSAGES, "");
	setlocale(LC_CTYPE, "");
	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
	textdomain(NLS_CAT_NAME);
	set_com_err_gettext(gettext);
#endif

	add_error_table(&et_ext2_error_table);

	fprintf (stderr, "resize2fs %s (%s)\n",
		 E2FSPROGS_VERSION, E2FSPROGS_DATE);
	if (argc && *argv)
		program_name = *argv;

	while ((c = getopt (argc, argv, "d:fFhMPpS:")) != EOF) {
		switch (c) {
		case 'h':
			usage(program_name);
			break;
		case 'f':
			force = 1;
			break;
		case 'F':
			flush = 1;
			break;
		case 'M':
			force_min_size = 1;
			break;
		case 'P':
			print_min_size = 1;
			break;
		case 'd':
			flags |= atoi(optarg);
			break;
		case 'p':
			flags |= RESIZE_PERCENT_COMPLETE;
			break;
		case 'S':
			use_stride = atoi(optarg);
			break;
		default:
			usage(program_name);
		}
	}
	if (optind == argc)
		usage(program_name);

	device_name = argv[optind++];
	if (optind < argc)
		new_size_str = argv[optind++];
	if (optind < argc)
		usage(program_name);

	io_options = strchr(device_name, '?');
	if (io_options)
		*io_options++ = 0;

	/*
	 * Figure out whether or not the device is mounted, and if it is
	 * where it is mounted.
	 */
	len=80;
	while (1) {
		mtpt = malloc(len);
		if (!mtpt)
			return ENOMEM;
		mtpt[len-1] = 0;
		retval = ext2fs_check_mount_point(device_name, &mount_flags,
						  mtpt, len);
		if (retval) {
			com_err("ext2fs_check_mount_point", retval,
				_("while determining whether %s is mounted."),
				device_name);
			exit(1);
		}
		if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
			break;
		free(mtpt);
		len = 2 * len;
	}

	fd = ext2fs_open_file(device_name, O_RDWR, 0);
	if (fd < 0) {
		com_err("open", errno, _("while opening %s"),
			device_name);
		exit(1);
	}

	ret = ext2fs_fstat(fd, &st_buf);
	if (ret < 0) {
		com_err("open", errno,
			_("while getting stat information for %s"),
			device_name);
		exit(1);
	}

	if (flush) {
		retval = ext2fs_sync_device(fd, 1);
		if (retval) {
			com_err(argv[0], retval,
				_("while trying to flush %s"),
				device_name);
			exit(1);
		}
	}

	if (!S_ISREG(st_buf.st_mode )) {
		close(fd);
		fd = -1;
	}

#ifdef CONFIG_TESTIO_DEBUG
	if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
		io_ptr = test_io_manager;
		test_io_backing_manager = unix_io_manager;
	} else
#endif
		io_ptr = unix_io_manager;

	if (!(mount_flags & EXT2_MF_MOUNTED))
		io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;

	io_flags |= EXT2_FLAG_64BITS;

	retval = ext2fs_open2(device_name, io_options, io_flags,
			      0, 0, io_ptr, &fs);
	if (retval) {
		com_err (program_name, retval, _("while trying to open %s"),
			 device_name);
		printf (_("Couldn't find valid filesystem superblock.\n"));
		exit (1);
	}

	/*
	 * Check for compatibility with the feature sets.  We need to
	 * be more stringent than ext2fs_open().
	 */
	if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
		com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
			"(%s)", device_name);
		exit(1);
	}

	min_size = calculate_minimum_resize_size(fs);

	if (print_min_size) {
		if (!force && ((fs->super->s_state & EXT2_ERROR_FS) ||
			       ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
			fprintf(stderr,
				_("Please run 'e2fsck -f %s' first.\n\n"),
				device_name);
			exit(1);
		}
		printf(_("Estimated minimum size of the filesystem: %llu\n"),
		       min_size);
		exit(0);
	}

	/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
	sysval = sysconf(_SC_PAGESIZE);
	if (sysval > 0)
		sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */

	/*
	 * Get the size of the containing partition, and use this for
	 * defaults and for making sure the new filesystem doesn't
	 * exceed the partition size.
	 */
	retval = ext2fs_get_device_size2(device_name, fs->blocksize,
					 &max_size);
	if (retval) {
		com_err(program_name, retval,
			_("while trying to determine filesystem size"));
		exit(1);
	}
	if (force_min_size)
		new_size = min_size;
	else if (new_size_str) {
		new_size = parse_num_blocks2(new_size_str,
					     fs->super->s_log_block_size);
		if (new_size == 0) {
			com_err(program_name, 0,
				_("Invalid new size: %s\n"), new_size_str);
			exit(1);
		}
	} else {
		new_size = max_size;
		/* Round down to an even multiple of a pagesize */
		if (sys_page_size > fs->blocksize)
			new_size &= ~((sys_page_size / fs->blocksize)-1);
	}
	if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
				       EXT4_FEATURE_INCOMPAT_64BIT)) {
		/* Take 16T down to 2^32-1 blocks */
		if (new_size == (1ULL << 32))
			new_size--;
		else if (new_size > (1ULL << 32)) {
			com_err(program_name, 0,
				_("New size too large to be "
				  "expressed in 32 bits\n"));
			exit(1);
		}
	}

	if (!force && new_size < min_size) {
		com_err(program_name, 0,
			_("New size smaller than minimum (%llu)\n"), min_size);
		exit(1);
	}
	if (use_stride >= 0) {
		if (use_stride >= (int) fs->super->s_blocks_per_group) {
			com_err(program_name, 0,
				_("Invalid stride length"));
			exit(1);
		}
		fs->stride = fs->super->s_raid_stride = use_stride;
		ext2fs_mark_super_dirty(fs);
	} else
		  determine_fs_stride(fs);

	/*
	 * If we are resizing a plain file, and it's not big enough,
	 * automatically extend it in a sparse fashion by writing the
	 * last requested block.
	 */
	new_file_size = ((__u64) new_size) * fs->blocksize;
	if ((__u64) new_file_size >
	    (((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
		fd = -1;
	if ((new_file_size > st_buf.st_size) &&
	    (fd > 0)) {
		if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
		    (write(fd, "0", 1) == 1))
			max_size = new_size;
	}
	if (!force && (new_size > max_size)) {
		fprintf(stderr, _("The containing partition (or device)"
			" is only %llu (%dk) blocks.\nYou requested a new size"
			" of %llu blocks.\n\n"), max_size,
			fs->blocksize / 1024, new_size);
		exit(1);
	}
	if (new_size == ext2fs_blocks_count(fs->super)) {
		fprintf(stderr, _("The filesystem is already %llu blocks "
			"long.  Nothing to do!\n\n"), new_size);
		exit(0);
	}
	if (mount_flags & EXT2_MF_MOUNTED) {
		retval = online_resize_fs(fs, mtpt, &new_size, flags);
	} else {
		if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
			       (fs->super->s_state & EXT2_ERROR_FS) ||
			       ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
			fprintf(stderr,
				_("Please run 'e2fsck -f %s' first.\n\n"),
				device_name);
			exit(1);
		}
		/*
		 * XXXX The combination of flex_bg and !resize_inode
		 * causes major problems for resize2fs, since when the
		 * group descriptors grow in size this can potentially
		 * require multiple inode tables to be moved aside to
		 * make room, and resize2fs chokes rather badly in
		 * this scenario.  It's a rare combination, except
		 * when a filesystem is expanded more than a certain
		 * size, so for now, we'll just prohibit that
		 * combination.  This is something we should fix
		 * eventually, though.
		 */
		if ((fs->super->s_feature_incompat &
		     EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
		    !(fs->super->s_feature_compat &
		      EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
			com_err(program_name, 0, _("%s: The combination of "
				"flex_bg and\n\t!resize_inode features "
				"is not supported by resize2fs.\n"),
				device_name);
			exit(1);
		}
		printf(_("Resizing the filesystem on "
			 "%s to %llu (%dk) blocks.\n"),
		       device_name, new_size, fs->blocksize / 1024);
		retval = resize_fs(fs, &new_size, flags,
				   ((flags & RESIZE_PERCENT_COMPLETE) ?
				    resize_progress_func : 0));
	}
	free(mtpt);
	if (retval) {
		com_err(program_name, retval, _("while trying to resize %s"),
			device_name);
		fprintf(stderr,
			_("Please run 'e2fsck -fy %s' to fix the filesystem\n"
			  "after the aborted resize operation.\n"),
			device_name);
		ext2fs_close(fs);
		exit(1);
	}
	printf(_("The filesystem on %s is now %llu blocks long.\n\n"),
	       device_name, new_size);

	if ((st_buf.st_size > new_file_size) &&
	    (fd > 0)) {
#ifdef HAVE_FTRUNCATE64
		retval = ftruncate64(fd, new_file_size);
#else
		retval = 0;
		/* Only truncate if new_file_size doesn't overflow off_t */
		if (((off_t) new_file_size) == new_file_size)
			retval = ftruncate(fd, (off_t) new_file_size);
#endif
		if (retval)
			com_err(program_name, retval,
				_("while trying to truncate %s"),
				device_name);
	}
	if (fd > 0)
		close(fd);
	remove_error_table(&et_ext2_error_table);
	return (0);
}
Пример #3
0
int main (int argc, char ** argv)
{
	errcode_t	retval;
	ext2_filsys	fs;
	int		c;
	int		flags = 0;
	int		flush = 0;
	int		force = 0;
	int		io_flags = 0;
	int		force_min_size = 0;
	int		print_min_size = 0;
	int		fd, ret;
	blk64_t		new_size = 0;
	blk64_t		max_size = 0;
	blk64_t		min_size = 0;
	io_manager	io_ptr;
	char		*new_size_str = 0;
	int		use_stride = -1;
	ext2fs_struct_stat st_buf;
	__s64		new_file_size;
	unsigned int	sys_page_size = 4096;
	unsigned int	blocksize;
	long		sysval;
	int		len, mount_flags;
	char		*mtpt, *undo_file = NULL;

#ifdef ENABLE_NLS
	setlocale(LC_MESSAGES, "");
	setlocale(LC_CTYPE, "");
	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
	textdomain(NLS_CAT_NAME);
	set_com_err_gettext(gettext);
#endif

	add_error_table(&et_ext2_error_table);

	fprintf (stderr, "resize2fs %s (%s)\n",
		 E2FSPROGS_VERSION, E2FSPROGS_DATE);
	if (argc && *argv)
		program_name = *argv;

	while ((c = getopt(argc, argv, "d:fFhMPpS:bsz:")) != EOF) {
		switch (c) {
		case 'h':
			usage(program_name);
			break;
		case 'f':
			force = 1;
			break;
		case 'F':
			flush = 1;
			break;
		case 'M':
			force_min_size = 1;
			break;
		case 'P':
			print_min_size = 1;
			break;
		case 'd':
			flags |= atoi(optarg);
			break;
		case 'p':
			flags |= RESIZE_PERCENT_COMPLETE;
			break;
		case 'S':
			use_stride = atoi(optarg);
			break;
		case 'b':
			flags |= RESIZE_ENABLE_64BIT;
			break;
		case 's':
			flags |= RESIZE_DISABLE_64BIT;
			break;
		case 'z':
			undo_file = optarg;
			break;
		default:
			usage(program_name);
		}
	}
	if (optind == argc)
		usage(program_name);

	device_name = argv[optind++];
	if (optind < argc)
		new_size_str = argv[optind++];
	if (optind < argc)
		usage(program_name);

	io_options = strchr(device_name, '?');
	if (io_options)
		*io_options++ = 0;

	/*
	 * Figure out whether or not the device is mounted, and if it is
	 * where it is mounted.
	 */
	len=80;
	while (1) {
		mtpt = malloc(len);
		if (!mtpt)
			return ENOMEM;
		mtpt[len-1] = 0;
		retval = ext2fs_check_mount_point(device_name, &mount_flags,
						  mtpt, len);
		if (retval) {
			com_err("ext2fs_check_mount_point", retval,
				_("while determining whether %s is mounted."),
				device_name);
			exit(1);
		}
		if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
			break;
		free(mtpt);
		len = 2 * len;
	}

	fd = ext2fs_open_file(device_name, O_RDWR, 0);
	if (fd < 0) {
		com_err("open", errno, _("while opening %s"),
			device_name);
		exit(1);
	}

	ret = ext2fs_fstat(fd, &st_buf);
	if (ret < 0) {
		com_err("open", errno,
			_("while getting stat information for %s"),
			device_name);
		exit(1);
	}

	if (flush) {
		retval = ext2fs_sync_device(fd, 1);
		if (retval) {
			com_err(argv[0], retval,
				_("while trying to flush %s"),
				device_name);
			exit(1);
		}
	}

	if (!S_ISREG(st_buf.st_mode )) {
		close(fd);
		fd = -1;
	}

#ifdef CONFIG_TESTIO_DEBUG
	if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
		io_ptr = test_io_manager;
		test_io_backing_manager = unix_io_manager;
	} else
#endif
		io_ptr = unix_io_manager;

	if (!(mount_flags & EXT2_MF_MOUNTED))
		io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;

	io_flags |= EXT2_FLAG_64BITS;
	if (undo_file) {
		retval = resize2fs_setup_tdb(device_name, undo_file, &io_ptr);
		if (retval)
			exit(1);
	}
	retval = ext2fs_open2(device_name, io_options, io_flags,
			      0, 0, io_ptr, &fs);
	if (retval) {
		com_err(program_name, retval, _("while trying to open %s"),
			device_name);
		printf("%s", _("Couldn't find valid filesystem superblock.\n"));
		exit (1);
	}
	fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;

	/*
	 * Before acting on an unmounted filesystem, make sure it's ok,
	 * unless the user is forcing it.
	 *
	 * We do ERROR and VALID checks even if we're only printing the
	 * minimimum size, because traversal of a badly damaged filesystem
	 * can cause issues as well.  We don't require it to be fscked after
	 * the last mount time in this case, though, as this is a bit less
	 * risky.
	 */
	if (!force && !(mount_flags & EXT2_MF_MOUNTED)) {
		int checkit = 0;

		if (fs->super->s_state & EXT2_ERROR_FS)
			checkit = 1;

		if ((fs->super->s_state & EXT2_VALID_FS) == 0)
			checkit = 1;

		if ((fs->super->s_lastcheck < fs->super->s_mtime) &&
		    !print_min_size)
			checkit = 1;

		if (checkit) {
			fprintf(stderr,
				_("Please run 'e2fsck -f %s' first.\n\n"),
				device_name);
			exit(1);
		}
	}

	/*
	 * Check for compatibility with the feature sets.  We need to
	 * be more stringent than ext2fs_open().
	 */
	if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
		com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
			"(%s)", device_name);
		exit(1);
	}

	min_size = calculate_minimum_resize_size(fs, flags);

	if (print_min_size) {
		printf(_("Estimated minimum size of the filesystem: %llu\n"),
		       min_size);
		exit(0);
	}

	/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
	sysval = sysconf(_SC_PAGESIZE);
	if (sysval > 0)
		sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */

	/*
	 * Get the size of the containing partition, and use this for
	 * defaults and for making sure the new filesystem doesn't
	 * exceed the partition size.
	 */
	blocksize = fs->blocksize;
	retval = ext2fs_get_device_size2(device_name, blocksize,
					 &max_size);
	if (retval) {
		com_err(program_name, retval, "%s",
			_("while trying to determine filesystem size"));
		exit(1);
	}
	if (force_min_size)
		new_size = min_size;
	else if (new_size_str) {
		new_size = parse_num_blocks2(new_size_str,
					     fs->super->s_log_block_size);
		if (new_size == 0) {
			com_err(program_name, 0,
				_("Invalid new size: %s\n"), new_size_str);
			exit(1);
		}
	} else {
		new_size = max_size;
		/* Round down to an even multiple of a pagesize */
		if (sys_page_size > blocksize)
			new_size &= ~((sys_page_size / blocksize)-1);
	}
	/* If changing 64bit, don't change the filesystem size. */
	if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
		new_size = ext2fs_blocks_count(fs->super);
	}
	if (!ext2fs_has_feature_64bit(fs->super)) {
		/* Take 16T down to 2^32-1 blocks */
		if (new_size == (1ULL << 32))
			new_size--;
		else if (new_size > (1ULL << 32)) {
			com_err(program_name, 0, "%s",
				_("New size too large to be "
				  "expressed in 32 bits\n"));
			exit(1);
		}
	}

	if (!force && new_size < min_size) {
		com_err(program_name, 0,
			_("New size smaller than minimum (%llu)\n"), min_size);
		exit(1);
	}
	if (use_stride >= 0) {
		if (use_stride >= (int) fs->super->s_blocks_per_group) {
			com_err(program_name, 0, "%s",
				_("Invalid stride length"));
			exit(1);
		}
		fs->stride = fs->super->s_raid_stride = use_stride;
		ext2fs_mark_super_dirty(fs);
	} else
		  determine_fs_stride(fs);

	/*
	 * If we are resizing a plain file, and it's not big enough,
	 * automatically extend it in a sparse fashion by writing the
	 * last requested block.
	 */
	new_file_size = ((__u64) new_size) * blocksize;
	if ((__u64) new_file_size >
	    (((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
		fd = -1;
	if ((new_file_size > st_buf.st_size) &&
	    (fd > 0)) {
		if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
		    (write(fd, "0", 1) == 1))
			max_size = new_size;
	}
	if (!force && (new_size > max_size)) {
		fprintf(stderr, _("The containing partition (or device)"
			" is only %llu (%dk) blocks.\nYou requested a new size"
			" of %llu blocks.\n\n"), max_size,
			blocksize / 1024, new_size);
		exit(1);
	}
	if ((flags & RESIZE_DISABLE_64BIT) && (flags & RESIZE_ENABLE_64BIT)) {
		fprintf(stderr, _("Cannot set and unset 64bit feature.\n"));
		exit(1);
	} else if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
		if (new_size >= (1ULL << 32)) {
			fprintf(stderr, _("Cannot change the 64bit feature "
				"on a filesystem that is larger than "
				"2^32 blocks.\n"));
			exit(1);
		}
		if (mount_flags & EXT2_MF_MOUNTED) {
			fprintf(stderr, _("Cannot change the 64bit feature "
				"while the filesystem is mounted.\n"));
			exit(1);
		}
		if (flags & RESIZE_ENABLE_64BIT &&
		    !ext2fs_has_feature_extents(fs->super)) {
			fprintf(stderr, _("Please enable the extents feature "
				"with tune2fs before enabling the 64bit "
				"feature.\n"));
			exit(1);
		}
	} else if (new_size == ext2fs_blocks_count(fs->super)) {
		fprintf(stderr, _("The filesystem is already %llu (%dk) "
			"blocks long.  Nothing to do!\n\n"), new_size,
			blocksize / 1024);
		exit(0);
	}
	if ((flags & RESIZE_ENABLE_64BIT) &&
	    ext2fs_has_feature_64bit(fs->super)) {
		fprintf(stderr, _("The filesystem is already 64-bit.\n"));
		exit(0);
	}
	if ((flags & RESIZE_DISABLE_64BIT) &&
	    !ext2fs_has_feature_64bit(fs->super)) {
		fprintf(stderr, _("The filesystem is already 32-bit.\n"));
		exit(0);
	}
	if (mount_flags & EXT2_MF_MOUNTED) {
		bigalloc_check(fs, force);
		retval = online_resize_fs(fs, mtpt, &new_size, flags);
	} else {
		bigalloc_check(fs, force);
		if (flags & RESIZE_ENABLE_64BIT)
			printf(_("Converting the filesystem to 64-bit.\n"));
		else if (flags & RESIZE_DISABLE_64BIT)
			printf(_("Converting the filesystem to 32-bit.\n"));
		else
			printf(_("Resizing the filesystem on "
				 "%s to %llu (%dk) blocks.\n"),
			       device_name, new_size, blocksize / 1024);
		retval = resize_fs(fs, &new_size, flags,
				   ((flags & RESIZE_PERCENT_COMPLETE) ?
				    resize_progress_func : 0));
	}
	free(mtpt);
	if (retval) {
		com_err(program_name, retval, _("while trying to resize %s"),
			device_name);
		fprintf(stderr,
			_("Please run 'e2fsck -fy %s' to fix the filesystem\n"
			  "after the aborted resize operation.\n"),
			device_name);
		ext2fs_close_free(&fs);
		exit(1);
	}
	printf(_("The filesystem on %s is now %llu (%dk) blocks long.\n\n"),
	       device_name, new_size, blocksize / 1024);

	if ((st_buf.st_size > new_file_size) &&
	    (fd > 0)) {
#ifdef HAVE_FTRUNCATE64
		retval = ftruncate64(fd, new_file_size);
#else
		retval = 0;
		/* Only truncate if new_file_size doesn't overflow off_t */
		if (((off_t) new_file_size) == new_file_size)
			retval = ftruncate(fd, (off_t) new_file_size);
#endif
		if (retval)
			com_err(program_name, retval,
				_("while trying to truncate %s"),
				device_name);
	}
	if (fd > 0)
		close(fd);
	remove_error_table(&et_ext2_error_table);
	return (0);
}