/*
* main.c --- ext2 resizer main program
*
- * Copyright (C) 1997 Theodore Ts'o
+ * Copyright (C) 1997, 1998 by Theodore Ts'o and
+ * PowerQuest, Inc.
+ *
+ * Copyright (C) 1999, 2000, 2001 by Theosore Ts'o
*
* %Begin-Header%
- * All rights reserved.
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
* %End-Header%
*/
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
+#endif
+#include <fcntl.h>
+#include <sys/stat.h>
+
#include "resize2fs.h"
-#define E2FSPROGS_VERSION "1.10"
-#define E2FSPROGS_DATE "27-Apr-97"
+#include "../version.h"
char *program_name, *device_name;
-static volatile void usage (char *program_name)
+static void usage (char *prog)
{
- fprintf (stderr, "usage: %s device new-size\n", program_name);
+ fprintf (stderr, _("usage: %s [-d debug_flags] [-f] [-F] [-p] device [new-size]\n\n"), prog);
+
exit (1);
}
-void main (int argc, char ** argv)
+static errcode_t resize_progress_func(ext2_resize_t rfs, int pass,
+ unsigned long cur, unsigned long max)
+{
+ ext2_sim_progmeter progress;
+ const char *label;
+ errcode_t retval;
+
+ progress = (ext2_sim_progmeter) rfs->prog_data;
+ if (max == 0)
+ return 0;
+ if (cur == 0) {
+ if (progress)
+ ext2fs_progress_close(progress);
+ progress = 0;
+ switch (pass) {
+ case E2_RSZ_EXTEND_ITABLE_PASS:
+ label = _("Extending the inode table");
+ break;
+ case E2_RSZ_BLOCK_RELOC_PASS:
+ label = _("Relocating blocks");
+ break;
+ case E2_RSZ_INODE_SCAN_PASS:
+ label = _("Scanning inode table");
+ break;
+ case E2_RSZ_INODE_REF_UPD_PASS:
+ label = _("Updating inode references");
+ break;
+ case E2_RSZ_MOVE_ITABLE_PASS:
+ label = _("Moving inode table");
+ break;
+ default:
+ label = _("Unknown pass?!?");
+ break;
+ }
+ printf(_("Begin pass %d (max = %lu)\n"), pass, max);
+ retval = ext2fs_progress_init(&progress, label, 30,
+ 40, max, 0);
+ if (retval)
+ progress = 0;
+ rfs->prog_data = (void *) progress;
+ }
+ if (progress)
+ ext2fs_progress_update(progress, cur);
+ if (cur >= max) {
+ if (progress)
+ ext2fs_progress_close(progress);
+ progress = 0;
+ rfs->prog_data = 0;
+ }
+ return 0;
+}
+
+static void check_mount(char *device)
+{
+ errcode_t retval;
+ int mount_flags;
+
+ retval = ext2fs_check_if_mounted(device, &mount_flags);
+ if (retval) {
+ com_err(_("ext2fs_check_if_mount"), retval,
+ _("while determining whether %s is mounted."),
+ device);
+ return;
+ }
+ if (!(mount_flags & EXT2_MF_MOUNTED))
+ return;
+
+ fprintf(stderr, _("%s is mounted; can't resize a "
+ "mounted filesystem!\n\n"), device);
+ exit(1);
+}
+
+
+int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
int c;
- blk_t new_size;
+ int flags = 0;
+ int flush = 0;
+ int force = 0;
+ int fd;
+ blk_t new_size = 0;
+ blk_t max_size = 0;
io_manager io_ptr;
+ char *tmp;
+ struct stat st_buf;
+
+ initialize_ext2_error_table();
- fprintf (stderr, "resize2fs %s, %s for EXT2 FS %s, %s\n",
- E2FSPROGS_VERSION, E2FSPROGS_DATE,
- EXT2FS_VERSION, EXT2FS_DATE);
+ fprintf (stderr, _("resize2fs %s (%s)\n"),
+ E2FSPROGS_VERSION, E2FSPROGS_DATE);
if (argc && *argv)
program_name = *argv;
-
- while ((c = getopt (argc, argv, "h")) != EOF) {
+
+ while ((c = getopt (argc, argv, "d:fFhp")) != EOF) {
switch (c) {
case 'h':
usage(program_name);
break;
+ case 'f':
+ force = 1;
+ break;
+ case 'F':
+ flush = 1;
+ break;
+ case 'd':
+ flags |= atoi(optarg);
+ break;
+ case 'p':
+ flags |= RESIZE_PERCENT_COMPLETE;
+ break;
default:
- usage (program_name);
+ usage(program_name);
}
}
- if (optind > argc - 2)
- usage (program_name);
+ if (optind == argc)
+ usage(program_name);
+
device_name = argv[optind++];
- new_size = atoi(argv[optind++]);
- initialize_ext2_error_table();
-#if 1
- io_ptr = unix_io_manager;
-#else
- io_ptr = test_io_manager;
- test_io_backing_manager = unix_io_manager;
-#endif
+ if (optind < argc) {
+ new_size = strtoul(argv[optind++], &tmp, 0);
+ if (*tmp) {
+ com_err(program_name, 0, _("bad filesystem size - %s"),
+ argv[optind - 1]);
+ exit(1);
+ }
+ }
+ if (optind < argc)
+ usage(program_name);
+
+ check_mount(device_name);
+
+ if (flush) {
+ fd = open(device_name, O_RDONLY, 0);
+
+ if (fd < 0) {
+ com_err("open", errno,
+ _("while opening %s for flushing"),
+ device_name);
+ exit(1);
+ }
+ retval = ext2fs_sync_device(fd, 1);
+ if (retval) {
+ com_err(argv[0], retval,
+ _("while trying to flush %s"),
+ device_name);
+ exit(1);
+ }
+ close(fd);
+ }
+
+ if (flags & RESIZE_DEBUG_IO) {
+ io_ptr = test_io_manager;
+ test_io_backing_manager = unix_io_manager;
+ } else
+ io_ptr = unix_io_manager;
+
retval = ext2fs_open (device_name, EXT2_FLAG_RW, 0, 0,
io_ptr, &fs);
if (retval) {
- com_err (program_name, retval, "while trying to open %s",
+ com_err (program_name, retval, _("while trying to open %s"),
device_name);
- printf ("Couldn't find valid filesystem superblock.\n");
+ printf (_("Couldn't find valid filesystem superblock.\n"));
exit (1);
}
- retval = ext2fs_read_bitmaps(fs);
+ /*
+ * 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);
+ }
+
+ /*
+ * Get the size of the containing partition, and use this for
+ * defaults and for making sure the new filesystme doesn't
+ * exceed the partition size.
+ */
+ retval = ext2fs_get_device_size(device_name, fs->blocksize,
+ &max_size);
if (retval) {
- com_err (program_name, retval,
- "while trying to read the bitmaps", device_name);
- ext2fs_close (fs);
- exit (1);
+ com_err(program_name, retval,
+ _("while trying to determine filesystem size"));
+ exit(1);
+ }
+ if (!new_size)
+ new_size = max_size;
+ /*
+ * 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.
+ */
+ if ((new_size > max_size) &&
+ (stat(device_name, &st_buf) == 0) &&
+ S_ISREG(st_buf.st_mode) &&
+ ((tmp = malloc(fs->blocksize)) != 0)) {
+ memset(tmp, 0, fs->blocksize);
+ retval = io_channel_write_blk(fs->io, new_size-1, 1, tmp);
+ if (retval == 0)
+ max_size = new_size;
+ free(tmp);
+ }
+ if (!force && (new_size > max_size)) {
+ fprintf(stderr, _("The containing partition (or device)"
+ " is only %d blocks.\nYou requested a new size"
+ " of %d blocks.\n\n"), max_size,
+ new_size);
+ exit(1);
+ }
+ if (new_size == fs->super->s_blocks_count) {
+ fprintf(stderr, _("The filesystem is already %d blocks "
+ "long. Nothing to do!\n\n"), new_size);
+ exit(0);
+ }
+ 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);
}
- retval = resize_fs(fs, new_size);
+ retval = resize_fs(fs, &new_size, flags,
+ ((flags & RESIZE_PERCENT_COMPLETE) ?
+ resize_progress_func : 0));
if (retval) {
- com_err(program_name, retval, "while trying to resize %s",
+ com_err(program_name, retval, _("while trying to resize %s"),
device_name);
ext2fs_close (fs);
+ exit(1);
}
- exit (0);
+ printf(_("The filesystem on %s is now %d blocks long.\n\n"),
+ device_name, new_size);
+ return (0);
}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff