summaryrefslogtreecommitdiff
path: root/e2fsprogs/util.c
diff options
context:
space:
mode:
authorDenis Vlasenko2006-12-26 01:25:48 +0000
committerDenis Vlasenko2006-12-26 01:25:48 +0000
commit64c54025842f205ad722675105b88044a5b6845a (patch)
tree9b5361a46d9174b8c4c12947b006acbca33dc24c /e2fsprogs/util.c
parentd63c3a032ade4d7a1953031d787eed044811b78c (diff)
downloadbusybox-64c54025842f205ad722675105b88044a5b6845a.zip
busybox-64c54025842f205ad722675105b88044a5b6845a.tar.gz
remove e2fsprogs. Nobody volunteered to clean up that mess
Diffstat (limited to 'e2fsprogs/util.c')
-rw-r--r--e2fsprogs/util.c267
1 files changed, 0 insertions, 267 deletions
diff --git a/e2fsprogs/util.c b/e2fsprogs/util.c
deleted file mode 100644
index b30c294..0000000
--- a/e2fsprogs/util.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * util.c --- helper functions used by tune2fs and mke2fs
- *
- * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <linux/major.h>
-#include <sys/stat.h>
-
-#include "e2fsbb.h"
-#include "e2p/e2p.h"
-#include "ext2fs/ext2_fs.h"
-#include "ext2fs/ext2fs.h"
-#include "blkid/blkid.h"
-#include "util.h"
-
-void proceed_question(void)
-{
- fputs("Proceed anyway? (y,n) ", stdout);
- if (bb_ask_confirmation() == 0)
- exit(1);
-}
-
-void check_plausibility(const char *device, int force)
-{
- int val;
- struct stat s;
- val = stat(device, &s);
- if (force)
- return;
- if(val == -1)
- bb_perror_msg_and_die("cannot stat %s", device);
- if (!S_ISBLK(s.st_mode)) {
- printf("%s is not a block special device.\n", device);
- proceed_question();
- return;
- }
-
-#ifdef HAVE_LINUX_MAJOR_H
-#ifndef MAJOR
-#define MAJOR(dev) ((dev)>>8)
-#define MINOR(dev) ((dev) & 0xff)
-#endif
-#ifndef SCSI_BLK_MAJOR
-#ifdef SCSI_DISK0_MAJOR
-#ifdef SCSI_DISK8_MAJOR
-#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
- ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
- ((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
-#else
-#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
- ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
-#endif /* defined(SCSI_DISK8_MAJOR) */
-#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
-#else
-#define SCSI_BLK_MAJOR(M) ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
-#endif /* defined(SCSI_DISK0_MAJOR) */
-#endif /* defined(SCSI_BLK_MAJOR) */
- if (((MAJOR(s.st_rdev) == HD_MAJOR &&
- MINOR(s.st_rdev)%64 == 0) ||
- (SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
- MINOR(s.st_rdev)%16 == 0))) {
- printf("%s is entire device, not just one partition!\n", device);
- proceed_question();
- }
-#endif
-}
-
-void check_mount(const char *device, int force, const char *type)
-{
- errcode_t retval;
- int mount_flags;
-
- retval = ext2fs_check_if_mounted(device, &mount_flags);
- if (retval) {
- bb_error_msg("cannot determine if %s is mounted", device);
- return;
- }
- if (mount_flags & EXT2_MF_MOUNTED) {
- bb_error_msg("%s is mounted !", device);
-force_check:
- if (force)
- bb_error_msg("badblocks forced anyways");
- else
- bb_error_msg_and_die("it's not safe to run badblocks!");
- }
-
- if (mount_flags & EXT2_MF_BUSY) {
- bb_error_msg("%s is apparently in use by the system", device);
- goto force_check;
- }
-
-}
-
-void parse_journal_opts(char **journal_device, int *journal_flags,
- int *journal_size, const char *opts)
-{
- char *buf, *token, *next, *p, *arg;
- int journal_usage = 0;
- buf = xstrdup(opts);
- for (token = buf; token && *token; token = next) {
- p = strchr(token, ',');
- next = 0;
- if (p) {
- *p = 0;
- next = p+1;
- }
- arg = strchr(token, '=');
- if (arg) {
- *arg = 0;
- arg++;
- }
- if (strcmp(token, "device") == 0) {
- *journal_device = blkid_get_devname(NULL, arg, NULL);
- if (!journal_device) {
- journal_usage++;
- continue;
- }
- } else if (strcmp(token, "size") == 0) {
- if (!arg) {
- journal_usage++;
- continue;
- }
- (*journal_size) = strtoul(arg, &p, 0);
- if (*p)
- journal_usage++;
- } else if (strcmp(token, "v1_superblock") == 0) {
- (*journal_flags) |= EXT2_MKJOURNAL_V1_SUPER;
- continue;
- } else
- journal_usage++;
- }
- if (journal_usage)
- bb_error_msg_and_die(
- "\nBad journal options specified.\n\n"
- "Journal options are separated by commas, "
- "and may take an argument which\n"
- "\tis set off by an equals ('=') sign.\n\n"
- "Valid journal options are:\n"
- "\tsize=<journal size in megabytes>\n"
- "\tdevice=<journal device>\n\n"
- "The journal size must be between "
- "1024 and 102400 filesystem blocks.\n\n");
-}
-
-/*
- * Determine the number of journal blocks to use, either via
- * user-specified # of megabytes, or via some intelligently selected
- * defaults.
- *
- * Find a reasonable journal file size (in blocks) given the number of blocks
- * in the filesystem. For very small filesystems, it is not reasonable to
- * have a journal that fills more than half of the filesystem.
- */
-int figure_journal_size(int size, ext2_filsys fs)
-{
- blk_t j_blocks;
-
- if (fs->super->s_blocks_count < 2048) {
- bb_error_msg("Filesystem too small for a journal");
- return 0;
- }
-
- if (size >= 0) {
- j_blocks = size * 1024 / (fs->blocksize / 1024);
- if (j_blocks < 1024 || j_blocks > 102400)
- bb_error_msg_and_die("\nThe requested journal "
- "size is %d blocks;\n it must be "
- "between 1024 and 102400 blocks; Aborting",
- j_blocks);
- if (j_blocks > fs->super->s_free_blocks_count)
- bb_error_msg_and_die("Journal size too big for filesystem");
- return j_blocks;
- }
-
- if (fs->super->s_blocks_count < 32768)
- j_blocks = 1024;
- else if (fs->super->s_blocks_count < 256*1024)
- j_blocks = 4096;
- else if (fs->super->s_blocks_count < 512*1024)
- j_blocks = 8192;
- else if (fs->super->s_blocks_count < 1024*1024)
- j_blocks = 16384;
- else
- j_blocks = 32768;
-
- return j_blocks;
-}
-
-void print_check_message(ext2_filsys fs)
-{
- printf("This filesystem will be automatically "
- "checked every %d mounts or\n"
- "%g days, whichever comes first. "
- "Use tune2fs -c or -i to override.\n",
- fs->super->s_max_mnt_count,
- (double)fs->super->s_checkinterval / (3600 * 24));
-}
-
-void make_journal_device(char *journal_device, ext2_filsys fs, int quiet, int force)
-{
- errcode_t retval;
- ext2_filsys jfs;
- io_manager io_ptr;
-
- check_plausibility(journal_device, force);
- check_mount(journal_device, force, "journal");
- io_ptr = unix_io_manager;
- retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
- EXT2_FLAG_JOURNAL_DEV_OK, 0,
- fs->blocksize, io_ptr, &jfs);
- if (retval)
- bb_error_msg_and_die("cannot journal device %s", journal_device);
- if(!quiet)
- printf("Adding journal to device %s: ", journal_device);
- fflush(stdout);
- retval = ext2fs_add_journal_device(fs, jfs);
- if(retval)
- bb_error_msg_and_die("\nFailed to add journal to device %s", journal_device);
- if(!quiet)
- puts("done");
- ext2fs_close(jfs);
-}
-
-void make_journal_blocks(ext2_filsys fs, int journal_size, int journal_flags, int quiet)
-{
- unsigned long journal_blocks;
- errcode_t retval;
-
- journal_blocks = figure_journal_size(journal_size, fs);
- if (!journal_blocks) {
- fs->super->s_feature_compat &=
- ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
- return;
- }
- if(!quiet)
- printf("Creating journal (%ld blocks): ", journal_blocks);
- fflush(stdout);
- retval = ext2fs_add_journal_inode(fs, journal_blocks,
- journal_flags);
- if(retval)
- bb_error_msg_and_die("cannot create journal");
- if(!quiet)
- puts("done");
-}
-
-char *e2fs_set_sbin_path(void)
-{
- char *oldpath = getenv("PATH");
- /* Update our PATH to include /sbin */
-#define PATH_SET "/sbin"
- if (oldpath)
- oldpath = xasprintf("%s:%s", PATH_SET, oldpath);
- else
- oldpath = PATH_SET;
- putenv (oldpath);
- return oldpath;
-}