import initial fat mke2fs
authorvapier <vapier@69ca8d6d-28ef-0310-b511-8ec308f3f277>
Sat, 11 Jun 2005 05:29:40 +0000 (05:29 +0000)
committervapier <vapier@69ca8d6d-28ef-0310-b511-8ec308f3f277>
Sat, 11 Jun 2005 05:29:40 +0000 (05:29 +0000)
git-svn-id: svn://busybox.net/trunk/busybox@10526 69ca8d6d-28ef-0310-b511-8ec308f3f277

e2fsprogs/Config.in
e2fsprogs/Makefile.in
e2fsprogs/mke2fs.c [new file with mode: 0644]
include/applets.h
include/usage.h

index 0ffd517..c4022bb 100644 (file)
@@ -17,6 +17,13 @@ config CONFIG_LSATTR
        help
          lsattr lists the file attributes on a second extended file system.
 
+config CONFIG_MKE2FS
+       bool "mke2fs"
+       default n
+       help
+         mke2fs is used to create an ext2/ext3 filesystem.  The normal compat 
+         symlinks 'mkfs.ext2' and 'mkfs.ext3' are also provided.
+
 config CONFIG_TUNE2FS
        bool "tune2fs (and e2label/findfs)"
        default n
index 196172b..fa278a5 100644 (file)
@@ -26,19 +26,23 @@ srcdir=$(top_srcdir)/e2fsprogs
 E2FSPROGS_CFLAGS := -I$(E2FSPROGS_DIR) -include $(E2FSPROGS_DIR)e2fsbb.h
 
 BLKID_SRC   := cache.c dev.c devname.c devno.c getsize.c llseek.c probe.c \
-               read.c resolve.c save.c tag.c
+               read.c resolve.c save.c tag.c resolve.c
 BLKID_SRCS  := $(patsubst %,blkid/%, $(BLKID_SRC))
 BLKID_OBJS  := $(patsubst %.c,%.o, $(BLKID_SRCS))
 
 E2P_SRC     := fgetsetflags.c fgetsetversion.c pf.c iod.c mntopts.c \
-               feature.c ls.c uuid.c pe.c ostype.c ps.c hashstr.c
+               feature.c ls.c uuid.c pe.c ostype.c ps.c hashstr.c \
+               parse_num.c
 E2P_SRCS    := $(patsubst %,e2p/%, $(E2P_SRC))
 E2P_OBJS    := $(patsubst %.c,%.o, $(E2P_SRCS))
 
 EXT2FS_SRC  := gen_bitmap.c bitops.c ismounted.c mkjournal.c unix_io.c \
                llseek.c rw_bitmaps.c initialize.c bitmaps.c block.c \
                ind_block.c inode.c freefs.c alloc_stats.c closefs.c \
-               openfs.c io_manager.c finddev.c read_bb.c alloc.c badblocks.c
+               openfs.c io_manager.c finddev.c read_bb.c alloc.c badblocks.c \
+               getsize.c getsectsize.c alloc_tables.c read_bb_file.c mkdir.c \
+               bb_inode.c newdir.c alloc_sb.c lookup.c dirblock.c expanddir.c \
+               dir_iterate.c link.c res_gdt.c
 EXT2FS_SRCS := $(patsubst %,ext2fs/%, $(EXT2FS_SRC))
 EXT2FS_OBJS := $(patsubst %.c,%.o, $(EXT2FS_SRCS))
 
@@ -50,6 +54,7 @@ UUID_OBJS   := $(patsubst %.c,%.o, $(UUID_SRCS))
 E2FSPROGS-:=
 E2FSPROGS-$(CONFIG_CHATTR)     += chattr.o $(E2P_OBJS)
 E2FSPROGS-$(CONFIG_LSATTR)     += lsattr.o $(E2P_OBJS)
+E2FSPROGS-$(CONFIG_MKE2FS)     += mke2fs.o util.o $(E2P_OBJS) $(BLKID_OBJS) $(EXT2FS_OBJS) $(UUID_OBJS)
 E2FSPROGS-$(CONFIG_TUNE2FS)    += tune2fs.o util.o $(E2P_OBJS) $(BLKID_OBJS) $(EXT2FS_OBJS) $(UUID_OBJS)
 
 libraries-y+=$(E2FSPROGS_DIR)$(E2FSPROGS_AR)
diff --git a/e2fsprogs/mke2fs.c b/e2fsprogs/mke2fs.c
new file mode 100644 (file)
index 0000000..6750867
--- /dev/null
@@ -0,0 +1,1483 @@
+/*
+ * mke2fs.c - Make a ext2fs filesystem.
+ * 
+ * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ *     2003, 2004, 2005 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+/* Usage: mke2fs [options] device
+ * 
+ * The device may be a block device or a image of one, but this isn't
+ * enforced (but it's not much fun on a character device :-). 
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <time.h>
+#ifdef __linux__
+#include <sys/utsname.h>
+#endif
+#include <getopt.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <mntent.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+#include "e2fsbb.h"
+#include "ext2fs/ext2_fs.h"
+#include "uuid/uuid.h"
+#include "e2p/e2p.h"
+#include "ext2fs/ext2fs.h"
+#include "util.h"
+
+#define STRIDE_LENGTH 8
+
+#ifndef __sparc__
+#define ZAP_BOOTBLOCK
+#endif
+
+static const char * program_name = "mke2fs";
+static const char * device_name /* = NULL */;
+
+/* Command line options */
+static int     cflag;
+static int     verbose;
+static int     quiet;
+static int     super_only;
+static int     force;
+static int     noaction;
+static int     journal_size;
+static int     journal_flags;
+static char    *bad_blocks_filename;
+static __u32   fs_stride;
+
+static struct ext2_super_block param;
+static char *creator_os;
+static char *volume_label;
+static char *mount_dir;
+static char *journal_device;
+static int sync_kludge;        /* Set using the MKE2FS_SYNC env. option */
+
+static int sys_page_size = 4096;
+static int linux_version_code = 0;
+
+static int int_log2(int arg)
+{
+       int     l = 0;
+
+       arg >>= 1;
+       while (arg) {
+               l++;
+               arg >>= 1;
+       }
+       return l;
+}
+
+static int int_log10(unsigned int arg)
+{
+       int     l;
+
+       for (l=0; arg ; l++)
+               arg = arg / 10;
+       return l;
+}
+
+static int parse_version_number(const char *s)
+{
+       int     major, minor, rev;
+       char    *endptr;
+       const char *cp = s;
+
+       if (!s)
+               return 0;
+       major = strtol(cp, &endptr, 10);
+       if (cp == endptr || *endptr != '.')
+               return 0;
+       cp = endptr + 1;
+       minor = strtol(cp, &endptr, 10);
+       if (cp == endptr || *endptr != '.')
+               return 0;
+       cp = endptr + 1;
+       rev = strtol(cp, &endptr, 10);
+       if (cp == endptr)
+               return 0;
+       return ((((major * 256) + minor) * 256) + rev);
+}
+
+
+
+/*
+ * This function sets the default parameters for a filesystem
+ *
+ * The type is specified by the user.  The size is the maximum size
+ * (in megabytes) for which a set of parameters applies, with a size
+ * of zero meaning that it is the default parameter for the type.
+ * Note that order is important in the table below.
+ */
+#define DEF_MAX_BLOCKSIZE -1
+static char default_str[] = "default";
+struct mke2fs_defaults {
+       const char      *type;
+       int             size;
+       int             blocksize;
+       int             inode_ratio;
+} settings[] = {
+       { default_str, 0, 4096, 8192 },
+       { default_str, 512, 1024, 4096 },
+       { default_str, 3, 1024, 8192 },
+       { "journal", 0, 4096, 8192 },
+       { "news", 0, 4096, 4096 },
+       { "largefile", 0, 4096, 1024 * 1024 },
+       { "largefile4", 0, 4096, 4096 * 1024 },
+       { 0, 0, 0, 0},
+};
+
+static void set_fs_defaults(const char *fs_type,
+                           struct ext2_super_block *super,
+                           int blocksize, int sector_size,
+                           int *inode_ratio)
+{
+       int     megs;
+       int     ratio = 0;
+       struct mke2fs_defaults *p;
+       int     use_bsize = 1024;
+
+       megs = super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) / 1024;
+       if (inode_ratio)
+               ratio = *inode_ratio;
+       if (!fs_type)
+               fs_type = default_str;
+       for (p = settings; p->type; p++) {
+               if ((strcmp(p->type, fs_type) != 0) &&
+                   (strcmp(p->type, default_str) != 0))
+                       continue;
+               if ((p->size != 0) && (megs > p->size))
+                       continue;
+               if (ratio == 0)
+                       *inode_ratio = p->inode_ratio < blocksize ?
+                               blocksize : p->inode_ratio;
+               use_bsize = p->blocksize;
+       }
+       if (blocksize <= 0) {
+               if (use_bsize == DEF_MAX_BLOCKSIZE) {
+                       use_bsize = sys_page_size;
+                       if ((linux_version_code < (2*65536 + 6*256)) &&
+                           (use_bsize > 4096))
+                               use_bsize = 4096;
+               }
+               if (sector_size && use_bsize < sector_size)
+                       use_bsize = sector_size;
+               if ((blocksize < 0) && (use_bsize < (-blocksize)))
+                       use_bsize = -blocksize;
+               blocksize = use_bsize;
+               super->s_blocks_count /= blocksize / 1024;
+       }
+       super->s_log_frag_size = super->s_log_block_size =
+               int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
+}
+
+
+/*
+ * Helper function for read_bb_file and test_disk
+ */
+static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
+{
+       bb_error_msg("Bad block %u out of range; ignored", blk);
+       return;
+}
+
+/*
+ * Reads the bad blocks list from a file
+ */
+static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
+                        const char *bad_blocks_file)
+{
+       FILE            *f;
+       errcode_t       retval;
+
+       f = fopen(bad_blocks_file, "r");
+       if (!f) {
+               bb_perror_msg_and_die("Could not read bad blocks file %s", bad_blocks_file);
+       }
+       retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
+       fclose (f);
+       if (retval) {
+               bb_error_msg_and_die("Could not read bad blocks list");
+       }
+}
+
+/*
+ * Runs the badblocks program to test the disk
+ */
+static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
+{
+       FILE            *f;
+       errcode_t       retval;
+       char            buf[1024];
+
+       sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
+               quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
+               fs->device_name, fs->super->s_blocks_count);
+       if (verbose)
+               printf(_("Running command: %s\n"), buf);
+       f = popen(buf, "r");
+       if (!f) {
+               bb_perror_msg_and_die("Could not run '%s'", buf);
+       }
+       retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
+       pclose(f);
+       if (retval) {
+               bb_error_msg_and_die(
+                       "Could not get list of bad blocks from program");
+       }
+}
+
+static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
+{
+       dgrp_t                  i;
+       blk_t                   j;
+       unsigned                must_be_good;
+       blk_t                   blk;
+       badblocks_iterate       bb_iter;
+       errcode_t               retval;
+       blk_t                   group_block;
+       int                     group;
+       int                     group_bad;
+
+       if (!bb_list)
+               return;
+       
+       /*
+        * The primary superblock and group descriptors *must* be
+        * good; if not, abort.
+        */
+       must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
+       for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
+               if (ext2fs_badblocks_list_test(bb_list, i)) {
+                       bb_error_msg_and_die(
+                               "Block %d in primary superblock/group descriptor area bad\n"
+                               "Blocks %d through %d must be good in order to build a filesystem\n"
+                               "Aborting ...", i, fs->super->s_first_data_block, must_be_good);
+               }
+       }
+
+       /*
+        * See if any of the bad blocks are showing up in the backup
+        * superblocks and/or group descriptors.  If so, issue a
+        * warning and adjust the block counts appropriately.
+        */
+       group_block = fs->super->s_first_data_block +
+               fs->super->s_blocks_per_group;
+       
+       for (i = 1; i < fs->group_desc_count; i++) {
+               group_bad = 0;
+               for (j=0; j < fs->desc_blocks+1; j++) {
+                       if (ext2fs_badblocks_list_test(bb_list,
+                                                      group_block + j)) {
+                               if (!group_bad) 
+                                       bb_error_msg(
+                                               "Warning: the backup superblock/group descriptors at block %d contain\n"
+                                               "       bad blocks\n", group_block);
+                               group_bad++;
+                               group = ext2fs_group_of_blk(fs, group_block+j);
+                               fs->group_desc[group].bg_free_blocks_count++;
+                               fs->super->s_free_blocks_count++;
+                       }
+               }
+               group_block += fs->super->s_blocks_per_group;
+       }
+       
+       /*
+        * Mark all the bad blocks as used...
+        */
+       retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
+       if (retval) {
+               bb_error_msg_and_die("while marking bad blocks as used");
+       }
+       while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 
+               ext2fs_mark_block_bitmap(fs->block_map, blk);
+       ext2fs_badblocks_list_iterate_end(bb_iter);
+}
+
+/*
+ * These functions implement a generalized progress meter.
+ */
+struct progress_struct {
+       char            format[20];
+       char            backup[80];
+       __u32           max;
+       int             skip_progress;
+};
+
+static void progress_init(struct progress_struct *progress,
+                         const char *label,__u32 max)
+{
+       int     i;
+
+       memset(progress, 0, sizeof(struct progress_struct));
+       if (quiet)
+               return;
+
+       /*
+        * Figure out how many digits we need
+        */
+       i = int_log10(max);
+       sprintf(progress->format, "%%%dd/%%%dld", i, i);
+       memset(progress->backup, '\b', sizeof(progress->backup)-1);
+       progress->backup[sizeof(progress->backup)-1] = 0;
+       if ((2*i)+1 < (int) sizeof(progress->backup))
+               progress->backup[(2*i)+1] = 0;
+       progress->max = max;
+
+       progress->skip_progress = 0;
+       if (getenv("MKE2FS_SKIP_PROGRESS"))
+               progress->skip_progress++;
+
+       fputs(label, stdout);
+       fflush(stdout);
+}
+
+static void progress_update(struct progress_struct *progress, __u32 val)
+{
+       if ((progress->format[0] == 0) || progress->skip_progress)
+               return;
+       printf(progress->format, val, progress->max);
+       fputs(progress->backup, stdout);
+}
+
+static void progress_close(struct progress_struct *progress)
+{
+       if (progress->format[0] == 0)
+               return;
+       fputs(_("done                            \n"), stdout);
+}
+
+
+/*
+ * Helper function which zeros out _num_ blocks starting at _blk_.  In
+ * case of an error, the details of the error is returned via _ret_blk_
+ * and _ret_count_ if they are non-NULL pointers.  Returns 0 on
+ * success, and an error code on an error.
+ *
+ * As a special case, if the first argument is NULL, then it will
+ * attempt to free the static zeroizing buffer.  (This is to keep
+ * programs that check for memory leaks happy.)
+ */
+static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
+                            struct progress_struct *progress,
+                            blk_t *ret_blk, int *ret_count)
+{
+       int             j, count, next_update, next_update_incr;
+       static char     *buf;
+       errcode_t       retval;
+
+       /* If fs is null, clean up the static buffer and return */
+       if (!fs) {
+               if (buf) {
+                       free(buf);
+                       buf = 0;
+               }
+               return 0;
+       }
+       /* Allocate the zeroizing buffer if necessary */
+       if (!buf) {
+               buf = xmalloc(fs->blocksize * STRIDE_LENGTH);
+               memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
+       }
+       /* OK, do the write loop */
+       next_update = 0;
+       next_update_incr = num / 100;
+       if (next_update_incr < 1)
+               next_update_incr = 1;
+       for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
+               count = num - j;
+               if (count > STRIDE_LENGTH)
+                       count = STRIDE_LENGTH;
+               retval = io_channel_write_blk(fs->io, blk, count, buf);
+               if (retval) {
+                       if (ret_count)
+                               *ret_count = count;
+                       if (ret_blk)
+                               *ret_blk = blk;
+                       return retval;
+               }
+               if (progress && j > next_update) {
+                       next_update += num / 100;
+                       progress_update(progress, blk);
+               }
+       }
+       return 0;
+}      
+
+static void write_inode_tables(ext2_filsys fs)
+{
+       errcode_t       retval;
+       blk_t           blk;
+       dgrp_t          i;
+       int             num;
+       struct progress_struct progress;
+
+       if (quiet)
+               memset(&progress, 0, sizeof(progress));
+       else
+               progress_init(&progress, _("Writing inode tables: "),
+                             fs->group_desc_count);
+
+       for (i = 0; i < fs->group_desc_count; i++) {
+               progress_update(&progress, i);
+               
+               blk = fs->group_desc[i].bg_inode_table;
+               num = fs->inode_blocks_per_group;
+
+               retval = zero_blocks(fs, blk, num, 0, &blk, &num);
+               if (retval) {
+                       bb_error_msg_and_die(
+                               "\nCould not write %d blocks "
+                               "in inode table starting at %d.",
+                               num, blk);
+               }
+               if (sync_kludge) {
+                       if (sync_kludge == 1)
+                               sync();
+                       else if ((i % sync_kludge) == 0)
+                               sync();
+               }
+       }
+       zero_blocks(0, 0, 0, 0, 0, 0);
+       progress_close(&progress);
+}
+
+static void create_root_dir(ext2_filsys fs)
+{
+       errcode_t       retval;
+       struct ext2_inode       inode;
+
+       retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
+       if (retval) {
+               bb_error_msg_and_die("Could not create root dir");
+       }
+       if (geteuid()) {
+               retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
+               if (retval) {
+                       bb_error_msg_and_die("Could not read root inode");
+               }
+               inode.i_uid = getuid();
+               if (inode.i_uid)
+                       inode.i_gid = getgid();
+               retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
+               if (retval) {
+                       bb_error_msg_and_die("Could not set root inode ownership");
+               }
+       }
+}
+
+static void create_lost_and_found(ext2_filsys fs)
+{
+       errcode_t               retval;
+       ext2_ino_t              ino;
+       const char              *name = "lost+found";
+       int                     i;
+       int                     lpf_size = 0;
+
+       fs->umask = 077;
+       retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
+       if (retval) {
+               bb_error_msg_and_die("Could not create lost+found");
+       }
+
+       retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
+       if (retval) {
+               bb_error_msg_and_die("Could not look up lost+found");
+       }
+       
+       for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
+               if ((lpf_size += fs->blocksize) >= 16*1024)
+                       break;
+               retval = ext2fs_expand_dir(fs, ino);
+               if (retval) {
+                       bb_error_msg_and_die("Could not expand lost+found");
+               }
+       }
+}
+
+static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
+{
+       errcode_t       retval;
+       
+       ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
+       fs->group_desc[0].bg_free_inodes_count--;
+       fs->super->s_free_inodes_count--;
+       retval = ext2fs_update_bb_inode(fs, bb_list);
+       if (retval) {
+               bb_error_msg_and_die("Could not set bad block inode");
+       }
+
+}
+
+static void reserve_inodes(ext2_filsys fs)
+{
+       ext2_ino_t      i;
+       int             group;
+
+       for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
+               ext2fs_mark_inode_bitmap(fs->inode_map, i);
+               group = ext2fs_group_of_ino(fs, i);
+               fs->group_desc[group].bg_free_inodes_count--;
+               fs->super->s_free_inodes_count--;
+       }
+       ext2fs_mark_ib_dirty(fs);
+}
+
+#define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
+#define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
+#define BSD_LABEL_OFFSET        64
+
+static void zap_sector(ext2_filsys fs, int sect, int nsect)
+{
+       char *buf;
+       int retval;
+       unsigned int *magic;
+
+       buf = malloc(512*nsect);
+       if (!buf) {
+               printf(_("Out of memory erasing sectors %d-%d\n"),
+                      sect, sect + nsect - 1);
+               exit(1);
+       }
+
+       if (sect == 0) {
+               /* Check for a BSD disklabel, and don't erase it if so */
+               retval = io_channel_read_blk(fs->io, 0, -512, buf);
+               if (retval)
+                       bb_error_msg("Warning: could not read block 0");
+               else {
+                       magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
+                       if ((*magic == BSD_DISKMAGIC) ||
+                           (*magic == BSD_MAGICDISK))
+                               return;
+               }
+       }
+
+       memset(buf, 0, 512*nsect);
+       io_channel_set_blksize(fs->io, 512);
+       retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
+       io_channel_set_blksize(fs->io, fs->blocksize);
+       free(buf);
+       if (retval)
+               bb_error_msg("Warning: could not erase sector %d", sect);
+}
+
+static void create_journal_dev(ext2_filsys fs)
+{
+       struct progress_struct progress;
+       errcode_t               retval;
+       char                    *buf;
+       blk_t                   blk;
+       int                     count;
+
+       retval = ext2fs_create_journal_superblock(fs,
+                                 fs->super->s_blocks_count, 0, &buf);
+       if (retval) {
+               bb_error_msg_and_die("Could not init journal superblock");
+       }
+       if (quiet)
+               memset(&progress, 0, sizeof(progress));
+       else
+               progress_init(&progress, _("Zeroing journal device: "),
+                             fs->super->s_blocks_count);
+
+       retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
+                            &progress, &blk, &count);
+       if (retval) {
+               bb_error_msg_and_die("Could not zero journal device (block %u, count %d)",
+                       blk, count);
+       }
+       zero_blocks(0, 0, 0, 0, 0, 0);
+
+       retval = io_channel_write_blk(fs->io,
+                                     fs->super->s_first_data_block+1,
+                                     1, buf);
+       if (retval) {
+               bb_error_msg_and_die("Could not write journal superblock");
+       }
+       progress_close(&progress);
+}
+
+static void show_stats(ext2_filsys fs)
+{
+       struct ext2_super_block *s = fs->super;
+       char                    buf[80];
+        char                    *os;
+       blk_t                   group_block;
+       dgrp_t                  i;
+       int                     need, col_left;
+       
+       if (param.s_blocks_count != s->s_blocks_count)
+               bb_error_msg("warning: %d blocks unused\n",
+                      param.s_blocks_count - s->s_blocks_count);
+
+       memset(buf, 0, sizeof(buf));
+       strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
+       printf("Filesystem label=%s\n", buf);
+       fputs(_("OS type: "), stdout);
+        os = e2p_os2string(fs->super->s_creator_os);
+       fputs(os, stdout);
+       free(os);
+       printf("\n");
+       printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
+               s->s_log_block_size);
+       printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
+               s->s_log_frag_size);
+       printf(_("%u inodes, %u blocks\n"), s->s_inodes_count,
+              s->s_blocks_count);
+       printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
+               s->s_r_blocks_count,
+              100.0 * s->s_r_blocks_count / s->s_blocks_count);
+       printf(_("First data block=%u\n"), s->s_first_data_block);
+       if (s->s_reserved_gdt_blocks)
+               printf(_("Maximum filesystem blocks=%lu\n"),
+                      (s->s_reserved_gdt_blocks + fs->desc_blocks) *
+                      (fs->blocksize / sizeof(struct ext2_group_desc)) *
+                      s->s_blocks_per_group);
+       if (fs->group_desc_count > 1)
+               printf(_("%u block groups\n"), fs->group_desc_count);
+       else
+               printf(_("%u block group\n"), fs->group_desc_count);
+       printf(_("%u blocks per group, %u fragments per group\n"),
+              s->s_blocks_per_group, s->s_frags_per_group);
+       printf(_("%u inodes per group\n"), s->s_inodes_per_group);
+
+       if (fs->group_desc_count == 1) {
+               printf("\n");
+               return;
+       }
+
+       printf(_("Superblock backups stored on blocks: "));
+       group_block = s->s_first_data_block;
+       col_left = 0;
+       for (i = 1; i < fs->group_desc_count; i++) {
+               group_block += s->s_blocks_per_group;
+               if (!ext2fs_bg_has_super(fs, i))
+                       continue;
+               if (i != 1)
+                       printf(", ");
+               need = int_log10(group_block) + 2;
+               if (need > col_left) {
+                       printf("\n\t");
+                       col_left = 72;
+               }
+               col_left -= need;
+               printf("%u", group_block);
+       }
+       printf("\n\n");
+}
+
+/*
+ * Set the S_CREATOR_OS field.  Return true if OS is known,
+ * otherwise, 0.
+ */
+static int set_os(struct ext2_super_block *sb, char *os)
+{
+       if (isdigit (*os))
+               sb->s_creator_os = atoi (os);
+       else if (strcasecmp(os, "linux") == 0)
+               sb->s_creator_os = EXT2_OS_LINUX;
+       else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
+               sb->s_creator_os = EXT2_OS_HURD;
+       else if (strcasecmp(os, "masix") == 0)
+               sb->s_creator_os = EXT2_OS_MASIX;
+       else if (strcasecmp(os, "freebsd") == 0)
+               sb->s_creator_os = EXT2_OS_FREEBSD;
+       else if (strcasecmp(os, "lites") == 0)
+               sb->s_creator_os = EXT2_OS_LITES;
+       else
+               return 0;
+
+       return 1;
+}
+
+#define PATH_SET "PATH=/sbin"
+
+static void parse_extended_opts(struct ext2_super_block *sb_param, 
+                               const char *opts)
+{
+       char    *buf, *token, *next, *p, *arg;
+       int     len;
+       int     r_usage = 0;
+
+       len = strlen(opts);
+       buf = xmalloc(len+1);
+       strcpy(buf, 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, "stride") == 0) {
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       fs_stride = strtoul(arg, &p, 0);
+                       if (*p || (fs_stride == 0)) {
+                               bb_error_msg("Invalid stride parameter");
+                               r_usage++;
+                               continue;
+                       }
+               } else if (!strcmp(token, "resize")) {
+                       unsigned long resize, bpg, rsv_groups;
+                       unsigned long group_desc_count, desc_blocks;
+                       unsigned int gdpb, blocksize;
+                       int rsv_gdb;
+
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+
+                       resize = parse_num_blocks(arg, 
+                                                 sb_param->s_log_block_size);
+
+                       if (resize == 0) {
+                               bb_error_msg("Invalid resize parameter: %s", arg);
+                               r_usage++;
+                               continue;
+                       }
+                       if (resize <= sb_param->s_blocks_count) {
+                               bb_error_msg("The resize maximum must be greater than the filesystem size");
+                               r_usage++;
+                               continue;
+                       }
+
+                       blocksize = EXT2_BLOCK_SIZE(sb_param);
+                       bpg = sb_param->s_blocks_per_group;
+                       if (!bpg)
+                               bpg = blocksize * 8;
+                       gdpb = blocksize / sizeof(struct ext2_group_desc);
+                       group_desc_count = (sb_param->s_blocks_count +
+                                           bpg - 1) / bpg;
+                       desc_blocks = (group_desc_count +
+                                      gdpb - 1) / gdpb;
+                       rsv_groups = (resize + bpg - 1) / bpg;
+                       rsv_gdb = (rsv_groups + gdpb - 1) / gdpb - 
+                               desc_blocks;
+                       if (rsv_gdb > EXT2_ADDR_PER_BLOCK(sb_param))
+                               rsv_gdb = EXT2_ADDR_PER_BLOCK(sb_param);
+
+                       if (rsv_gdb > 0) {
+                               sb_param->s_feature_compat |=
+                                       EXT2_FEATURE_COMPAT_RESIZE_INODE;
+
+                               sb_param->s_reserved_gdt_blocks = rsv_gdb;
+                       }
+               } else
+                       r_usage++;
+       }
+       if (r_usage) {
+               bb_error_msg_and_die(
+                       "\nBad options specified.\n\n"
+                       "Options are separated by commas, "
+                       "and may take an argument which\n"
+                       "\tis set off by an equals ('=') sign.\n\n"
+                       "Valid raid options are:\n"
+                       "\tstride=<stride length in blocks>\n"
+                       "\tresize=<resize maximum size in blocks>\n");
+       }
+}      
+
+static __u32 ok_features[3] = {
+       EXT3_FEATURE_COMPAT_HAS_JOURNAL |
+               EXT2_FEATURE_COMPAT_RESIZE_INODE |
+               EXT2_FEATURE_COMPAT_DIR_INDEX,  /* Compat */
+       EXT2_FEATURE_INCOMPAT_FILETYPE|         /* Incompat */
+               EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
+               EXT2_FEATURE_INCOMPAT_META_BG,
+       EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER     /* R/O compat */
+};
+
+
+static void PRS(int argc, char *argv[])
+{
+       int             b, c;
+       int             size;
+       char *          tmp;
+       int             blocksize = 0;
+       int             inode_ratio = 0;
+       int             inode_size = 0;
+       int             reserved_ratio = 5;
+       int             sector_size = 0;
+       int             show_version_only = 0;
+       ext2_ino_t      num_inodes = 0;
+       errcode_t       retval;
+       char *          oldpath = getenv("PATH");
+       char *          extended_opts = 0;
+       const char *    fs_type = 0;
+       blk_t           dev_size;
+#ifdef __linux__
+       struct          utsname ut;
+#endif
+       long            sysval;
+
+       /* Update our PATH to include /sbin  */
+       if (oldpath) {
+               char *newpath;
+               
+               newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
+               strcpy (newpath, PATH_SET);
+               strcat (newpath, ":");
+               strcat (newpath, oldpath);
+               putenv (newpath);
+       } else
+               putenv (PATH_SET);
+
+       tmp = getenv("MKE2FS_SYNC");
+       if (tmp)
+               sync_kludge = atoi(tmp);
+
+       /* Determine the system page size if possible */
+#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 */
+       
+       setbuf(stdout, NULL);
+       setbuf(stderr, NULL);
+       memset(&param, 0, sizeof(struct ext2_super_block));
+       param.s_rev_level = 1;  /* Create revision 1 filesystems now */
+       param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
+       param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
+#if 0
+       param.s_feature_compat |= EXT2_FEATURE_COMPAT_DIR_INDEX;
+#endif
+
+#ifdef __linux__
+       if (uname(&ut)) {
+               perror("uname");
+               exit(1);
+       }
+       linux_version_code = parse_version_number(ut.release);
+       if (linux_version_code && linux_version_code < (2*65536 + 2*256)) {
+               param.s_rev_level = 0;
+               param.s_feature_incompat = 0;
+               param.s_feature_compat = 0;
+               param.s_feature_ro_compat = 0;
+       }
+#endif
+
+       if (argc && *argv) {
+               program_name = basename(*argv);
+
+               /* If called as mkfs.ext3, create a journal inode */
+               if (!strcmp(*argv + strlen(*argv) - 9, "mkfs.ext3"))
+                       journal_size = -1;
+       }
+
+       while ((c = getopt (argc, argv,
+                   "b:cE:f:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF) {
+               switch (c) {
+               case 'b':
+                       blocksize = strtol(optarg, &tmp, 0);
+                       b = (blocksize > 0) ? blocksize : -blocksize;
+                       if (b < EXT2_MIN_BLOCK_SIZE ||
+                           b > EXT2_MAX_BLOCK_SIZE || *tmp) {
+                               bb_error_msg_and_die("bad block size - %s", optarg);
+                       }
+                       if (blocksize > 4096)
+                               bb_error_msg(
+                                       "Warning: blocksize %d not usable on most systems",
+                                       blocksize);
+                       if (blocksize > 0) 
+                               param.s_log_block_size =
+                                       int_log2(blocksize >>
+                                                EXT2_MIN_BLOCK_LOG_SIZE);
+                       break;
+               case 'c':       /* Check for bad blocks */
+               case 't':       /* deprecated */
+                       cflag++;
+                       break;
+               case 'f':
+                       size = strtoul(optarg, &tmp, 0);
+                       if (size < EXT2_MIN_BLOCK_SIZE ||
+                           size > EXT2_MAX_BLOCK_SIZE || *tmp) {
+                               bb_error_msg_and_die("bad fragment size - %s", optarg);
+                       }
+                       param.s_log_frag_size =
+                               int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
+                       bb_error_msg(
+                               "Warning: fragments not supported.  "
+                               "Ignoring -f option");
+                       break;
+               case 'g':
+                       param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               bb_error_msg_and_die("Illegal number for blocks per group");
+                       }
+                       if ((param.s_blocks_per_group % 8) != 0) {
+                               bb_error_msg_and_die("blocks per group must be multiple of 8");
+                       }
+                       break;
+               case 'i':
+                       inode_ratio = strtoul(optarg, &tmp, 0);
+                       if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
+                           inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
+                           *tmp) {
+                               bb_error_msg_and_die("bad inode ratio %s (min %d/max %d",
+                                       optarg, EXT2_MIN_BLOCK_SIZE,
+                                       EXT2_MAX_BLOCK_SIZE);
+                       }
+                       break;
+               case 'J':
+                       parse_journal_opts(&journal_device, &journal_flags, &journal_size, optarg);
+                       break;
+               case 'j':
+                       param.s_feature_compat |=
+                               EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+                       if (!journal_size)
+                               journal_size = -1;
+                       break;
+               case 'l':
+                       bad_blocks_filename = xmalloc(strlen(optarg)+1);
+                       strcpy(bad_blocks_filename, optarg);
+                       break;
+               case 'm':
+                       reserved_ratio = strtoul(optarg, &tmp, 0);
+                       if (reserved_ratio > 50 || *tmp) {
+                               bb_error_msg_and_die("bad reserved blocks percent - %s", optarg);
+                       }
+                       break;
+               case 'n':
+                       noaction++;
+                       break;
+               case 'o':
+                       creator_os = optarg;
+                       break;
+               case 'r':
+                       param.s_rev_level = atoi(optarg);
+                       if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
+                               param.s_feature_incompat = 0;
+                               param.s_feature_compat = 0;
+                               param.s_feature_ro_compat = 0;
+                       }
+                       break;
+               case 's':       /* deprecated */
+                       if (atoi(optarg))
+                               param.s_feature_ro_compat |=
+                                       EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
+                       else 
+                               param.s_feature_ro_compat &=
+                                       ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
+                       break;
+#ifdef EXT2_DYNAMIC_REV
+               case 'I':
+                       inode_size = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               bb_error_msg_and_die("bad inode size - %s", optarg);
+                       }
+                       break;
+#endif
+               case 'N':
+                       num_inodes = atoi(optarg);
+                       break;
+               case 'v':
+                       verbose = 1;
+                       break;
+               case 'q':
+                       quiet = 1;
+                       break;
+               case 'F':
+                       force = 1;
+                       break;
+               case 'L':
+                       volume_label = optarg;
+                       break;
+               case 'M':
+                       mount_dir = optarg;
+                       break;
+               case 'O':
+                       if (!strcmp(optarg, "none")) {
+                               param.s_feature_compat = 0;
+                               param.s_feature_incompat = 0;
+                               param.s_feature_ro_compat = 0;
+                               break;
+                       }
+                       if (e2p_edit_feature(optarg,
+                                           &param.s_feature_compat,
+                                           ok_features)) {
+                               bb_error_msg_and_die("Invalid filesystem option set: %s", optarg);
+                       }
+                       break;
+               case 'E':
+               case 'R':
+                       extended_opts = optarg;
+                       break;
+               case 'S':
+                       super_only = 1;
+                       break;
+               case 'T':
+                       fs_type = optarg;
+                       break;
+               case 'V':
+                       /* Print version number and exit */
+                       show_version_only++;
+                       break;
+               default:
+                       bb_show_usage();
+               }
+       }
+       if ((optind == argc) && !show_version_only)
+               bb_show_usage();
+       device_name = argv[optind++];
+
+       if (!quiet || show_version_only)
+               bb_error_msg("mke2fs %s (%s)", E2FSPROGS_VERSION, 
+                        E2FSPROGS_DATE);
+
+       if (show_version_only) {
+               exit(0);
+       }
+
+       /*
+        * If there's no blocksize specified and there is a journal
+        * device, use it to figure out the blocksize
+        */
+       if (blocksize <= 0 && journal_device) {
+               ext2_filsys     jfs;
+               io_manager      io_ptr;
+
+#ifdef CONFIG_TESTIO_DEBUG
+               io_ptr = test_io_manager;
+               test_io_backing_manager = unix_io_manager;
+#else
+               io_ptr = unix_io_manager;
+#endif
+               retval = ext2fs_open(journal_device,
+                                    EXT2_FLAG_JOURNAL_DEV_OK, 0,
+                                    0, io_ptr, &jfs);
+               if (retval) {
+                       bb_error_msg_and_die("Could not open journal device %s", journal_device);
+               }
+               if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
+                       bb_error_msg_and_die(
+                               "Journal dev blocksize (%d) smaller than "
+                               "minimum blocksize %d\n", jfs->blocksize,
+                               -blocksize);
+               }
+               blocksize = jfs->blocksize;
+               param.s_log_block_size =
+                       int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
+               ext2fs_close(jfs);
+       }
+
+       if (blocksize > sys_page_size) {
+               if (!force) {
+                       bb_error_msg("%d-byte blocks too big for system (max %d)",
+                               blocksize, sys_page_size);
+                       proceed_question();
+               }
+               bb_error_msg(
+                       "Warning: %d-byte blocks too big for system "
+                       "(max %d), forced to continue",
+                       blocksize, sys_page_size);
+       }
+       if ((blocksize > 4096) &&
+           (param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL))
+               bb_error_msg(
+                       "\nWarning: some 2.4 kernels do not support "
+                       "blocksizes greater than 4096 \n\tusing ext3."
+                       "  Use -b 4096 if this is an issue for you\n");
+
+       if (optind < argc) {
+               param.s_blocks_count = parse_num_blocks(argv[optind++], 
+                               param.s_log_block_size);
+               if (!param.s_blocks_count) {
+                       bb_error_msg_and_die("bad blocks count - %s", argv[optind - 1]);
+               }
+       }
+       if (optind < argc)
+               bb_show_usage();
+
+       if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
+               if (!fs_type)
+                       fs_type = "journal";
+               reserved_ratio = 0;
+               param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
+               param.s_feature_compat = 0;
+               param.s_feature_ro_compat = 0;
+       }
+       if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
+           (param.s_feature_compat || param.s_feature_ro_compat ||
+            param.s_feature_incompat))
+               param.s_rev_level = 1;  /* Create a revision 1 filesystem */
+
+       if (!force)
+               check_plausibility(device_name);
+       check_mount(device_name, force, _("filesystem"));
+
+       param.s_log_frag_size = param.s_log_block_size;
+
+       if (noaction && param.s_blocks_count) {
+               dev_size = param.s_blocks_count;
+               retval = 0;
+       } else {
+       retry:
+               retval = ext2fs_get_device_size(device_name,
+                                               EXT2_BLOCK_SIZE(&param),
+                                               &dev_size);
+               if ((retval == EFBIG) &&
+                   (blocksize == 0) && 
+                   (param.s_log_block_size == 0)) {
+                       param.s_log_block_size = 2;
+                       blocksize = 4096;
+                       goto retry;
+               }
+       }
+                       
+       if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
+               bb_error_msg_and_die("Could not determine filesystem size");
+       }
+       if (!param.s_blocks_count) {
+               if (retval == EXT2_ET_UNIMPLEMENTED) {
+                       bb_error_msg_and_die(
+                               "Couldn't determine device size; you "
+                               "must specify\nthe size of the "
+                               "filesystem");
+               } else {
+                       if (dev_size == 0) {
+                               bb_error_msg_and_die(
+                                       "Device size reported to be zero.  "
+                                       "Invalid partition specified, or\n\t"
+                                       "partition table wasn't reread "
+                                       "after running fdisk, due to\n\t"
+                                       "a modified partition being busy "
+                                       "and in use.  You may need to reboot\n\t"
+                                       "to re-read your partition table.\n"
+                               );
+                       }
+                       param.s_blocks_count = dev_size;
+                       if (sys_page_size > EXT2_BLOCK_SIZE(&param))
+                               param.s_blocks_count &= ~((sys_page_size /
+                                                          EXT2_BLOCK_SIZE(&param))-1);
+               }
+               
+       } else if (!force && (param.s_blocks_count > dev_size)) {
+               bb_error_msg("Filesystem larger than apparent device size");
+               proceed_question();
+       }
+
+       /*
+        * If the user asked for HAS_JOURNAL, then make sure a journal
+        * gets created.
+        */
+       if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
+           !journal_size)
+               journal_size = -1;
+
+       /* Set first meta blockgroup via an environment variable */
+       /* (this is mostly for debugging purposes) */
+       if ((param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
+           ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
+               param.s_first_meta_bg = atoi(tmp);
+
+       /* Get the hardware sector size, if available */
+       retval = ext2fs_get_device_sectsize(device_name, &sector_size);
+       if (retval) {
+               bb_error_msg_and_die("Could not determine hardware sector size");
+       }
+
+       if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
+               sector_size = atoi(tmp);
+       
+       set_fs_defaults(fs_type, &param, blocksize, sector_size, &inode_ratio);
+       blocksize = EXT2_BLOCK_SIZE(&param);
+       
+       if (extended_opts)
+               parse_extended_opts(&param, extended_opts);
+
+       /* Since sparse_super is the default, we would only have a problem
+        * here if it was explicitly disabled.
+        */
+       if ((param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
+           !(param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
+               bb_error_msg_and_die("reserved online resize blocks not supported "
+                         "on non-sparse filesystem");
+       }
+
+       if (param.s_blocks_per_group) {
+               if (param.s_blocks_per_group < 256 ||
+                   param.s_blocks_per_group > 8 * (unsigned) blocksize) {
+                       bb_error_msg_and_die("blocks per group count out of range");
+               }
+       }
+
+       if (inode_size) {
+               if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
+                   inode_size > EXT2_BLOCK_SIZE(&param) ||
+                   inode_size & (inode_size - 1)) {
+                       bb_error_msg_and_die("bad inode size %d (min %d/max %d)",
+                               inode_size, EXT2_GOOD_OLD_INODE_SIZE,
+                               blocksize);
+               }
+               if (inode_size != EXT2_GOOD_OLD_INODE_SIZE)
+                       bb_error_msg(
+                               "Warning: %d-byte inodes not usable on most systems",
+                               inode_size);
+               param.s_inode_size = inode_size;
+       }
+
+       /*
+        * Calculate number of inodes based on the inode ratio
+        */
+       param.s_inodes_count = num_inodes ? num_inodes : 
+               ((__u64) param.s_blocks_count * blocksize)
+                       / inode_ratio;
+
+       /*
+        * Calculate number of blocks to reserve
+        */
+       param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
+}
+
+int mke2fs_main (int argc, char *argv[])
+{
+       errcode_t       retval = 0;
+       ext2_filsys     fs;
+       badblocks_list  bb_list = 0;
+       int             journal_blocks;
+       unsigned int    i;
+       int             val;
+       io_manager      io_ptr;
+
+#ifdef ENABLE_NLS
+       setlocale(LC_MESSAGES, "");
+       setlocale(LC_CTYPE, "");
+       bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+       textdomain(NLS_CAT_NAME);
+#endif
+       PRS(argc, argv);
+
+#ifdef CONFIG_TESTIO_DEBUG
+       io_ptr = test_io_manager;
+       test_io_backing_manager = unix_io_manager;
+#else
+       io_ptr = unix_io_manager;
+#endif
+
+       /*
+        * Initialize the superblock....
+        */
+       retval = ext2fs_initialize(device_name, 0, &param,
+                                  io_ptr, &fs);
+       if (retval) {
+               bb_error_msg_and_die("Could not set up superblock");
+       }
+
+       /*
+        * Wipe out the old on-disk superblock
+        */
+       if (!noaction)
+               zap_sector(fs, 2, 6);
+
+       /*
+        * Generate a UUID for it...
+        */
+       uuid_generate(fs->super->s_uuid);
+
+       /*
+        * Initialize the directory index variables
+        */
+       fs->super->s_def_hash_version = EXT2_HASH_TEA;
+       uuid_generate((unsigned char *) fs->super->s_hash_seed);
+
+       /*
+        * Add "jitter" to the superblock's check interval so that we
+        * don't check all the filesystems at the same time.  We use a
+        * kludgy hack of using the UUID to derive a random jitter value.
+        */
+       for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
+               val += fs->super->s_uuid[i];
+       fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
+
+       /*
+        * Override the creator OS, if applicable
+        */
+       if (creator_os && !set_os(fs->super, creator_os)) {
+               bb_error_msg_and_die("unknown os - %s", creator_os);
+       }
+
+       /*
+        * For the Hurd, we will turn off filetype since it doesn't
+        * support it.
+        */
+       if (fs->super->s_creator_os == EXT2_OS_HURD)
+               fs->super->s_feature_incompat &=
+                       ~EXT2_FEATURE_INCOMPAT_FILETYPE;
+
+       /*
+        * Set the volume label...
+        */
+       if (volume_label) {
+               memset(fs->super->s_volume_name, 0,
+                      sizeof(fs->super->s_volume_name));
+               strncpy(fs->super->s_volume_name, volume_label,
+                       sizeof(fs->super->s_volume_name));
+       }
+
+       /*
+        * Set the last mount directory
+        */
+       if (mount_dir) {
+               memset(fs->super->s_last_mounted, 0,
+                      sizeof(fs->super->s_last_mounted));
+               strncpy(fs->super->s_last_mounted, mount_dir,
+                       sizeof(fs->super->s_last_mounted));
+       }
+       
+       if (!quiet || noaction)
+               show_stats(fs);
+
+       if (noaction)
+               exit(0);
+
+       if (fs->super->s_feature_incompat &
+           EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
+               create_journal_dev(fs);
+               exit(ext2fs_close(fs) ? 1 : 0);
+       }
+
+       if (bad_blocks_filename)
+               read_bb_file(fs, &bb_list, bad_blocks_filename);
+       if (cflag)
+               test_disk(fs, &bb_list);
+
+       handle_bad_blocks(fs, bb_list);
+       fs->stride = fs_stride;
+       retval = ext2fs_allocate_tables(fs);
+       if (retval) {
+               bb_error_msg_and_die("Could not allocate filesystem tables");
+       }
+       if (super_only) {
+               fs->super->s_state |= EXT2_ERROR_FS;
+               fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
+       } else {
+               /* rsv must be a power of two (64kB is MD RAID sb alignment) */
+               unsigned int rsv = 65536 / fs->blocksize;
+               unsigned long blocks = fs->super->s_blocks_count;
+               unsigned long start;
+               blk_t ret_blk;
+
+#ifdef ZAP_BOOTBLOCK
+               zap_sector(fs, 0, 2);
+#endif
+
+               /*
+                * Wipe out any old MD RAID (or other) metadata at the end
+                * of the device.  This will also verify that the device is
+                * as large as we think.  Be careful with very small devices.
+                */
+               start = (blocks & ~(rsv - 1));
+               if (start > rsv)
+                       start -= rsv;
+               if (start > 0)
+                       retval = zero_blocks(fs, start, blocks - start,
+                                            NULL, &ret_blk, NULL);
+
+               if (retval) {
+                       bb_error_msg("Could not zero block %u at end of filesystem", ret_blk);
+               }
+               write_inode_tables(fs);
+               create_root_dir(fs);
+               create_lost_and_found(fs);
+               reserve_inodes(fs);
+               create_bad_block_inode(fs, bb_list);
+               if (fs->super->s_feature_compat & 
+                   EXT2_FEATURE_COMPAT_RESIZE_INODE) {
+                       retval = ext2fs_create_resize_inode(fs);
+                       if (retval) {
+                               bb_error_msg_and_die("Could not reserve blocks for online resize");
+                       }
+               }
+       }
+
+       if (journal_device) {
+               ext2_filsys     jfs;
+               
+               if (!force)
+                       check_plausibility(journal_device); 
+               check_mount(journal_device, force, _("journal"));
+
+               retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
+                                    EXT2_FLAG_JOURNAL_DEV_OK, 0,
+                                    fs->blocksize, unix_io_manager, &jfs);
+               if (retval) {
+                       bb_error_msg_and_die("Could not open 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("Could not add journal to device %s", journal_device);
+               }
+               if (!quiet)
+                       printf("done\n");
+               ext2fs_close(jfs);
+               free(journal_device);
+       } else if (journal_size) {
+               journal_blocks = figure_journal_size(journal_size, fs);
+
+               if (!journal_blocks) {
+                       fs->super->s_feature_compat &=
+                               ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+                       goto no_journal;
+               }
+               if (!quiet) {
+                       printf("Creating journal (%d blocks): ",
+                              journal_blocks);
+                       fflush(stdout);
+               }
+               retval = ext2fs_add_journal_inode(fs, journal_blocks,
+                                                 journal_flags);
+               if (retval) {
+                       bb_error_msg_and_die("Could not create journal");
+               }
+               if (!quiet)
+                       printf("done\n");
+       }
+no_journal:
+
+       if (!quiet)
+               printf("Writing superblocks and "
+                      "filesystem accounting information: ");
+       retval = ext2fs_flush(fs);
+       if (retval) {
+               bb_error_msg("\nWarning, had trouble writing out superblocks");
+       }
+       if (!quiet) {
+               printf("done\n\n");
+               if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
+                       print_check_message(fs);
+       }
+       val = ext2fs_close(fs);
+       return (retval || val) ? 1 : 0;
+}
index d6e767d..e0b1808 100644 (file)
 #ifdef CONFIG_MKDIR
        APPLET(mkdir, mkdir_main, _BB_DIR_BIN, _BB_SUID_NEVER)
 #endif
+#ifdef CONFIG_MKE2FS
+       APPLET(mke2fs, mke2fs_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_MKFIFO
        APPLET(mkfifo, mkfifo_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
 #endif
+#ifdef CONFIG_MKE2FS
+       APPLET_NOUSAGE("mkfs.ext2", mke2fs_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
+       APPLET_NOUSAGE("mkfs.ext3", mke2fs_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_MKFS_MINIX
        APPLET_ODDNAME("mkfs.minix", mkfs_minix_main, _BB_DIR_SBIN, _BB_SUID_NEVER, mkfs_minix)
 #endif
index 1ab728f..5fb9858 100644 (file)
        "/tmp/foo/bar/baz: No such file or directory\n" \
        "$ mkdir -p /tmp/foo/bar/baz\n"
 
+#define mke2fs_trivial_usage \
+       "[-c|-l filename] [-b block-size] [-f fragment-size] [-g blocks-per-group] " \
+       "[-i bytes-per-inode] [-j] [-J journal-options] [-N number-of-inodes] [-n] " \
+       "[-m reserved-blocks-percentage] [-o creator-os] [-O feature[,...]] [-q] " \
+       "[r fs-revision-level] [-E extended-options] [-v] [-F] [-L volume-label] " \
+       "[-M last-mounted-directory] [-S] [-T filesystem-type] " \
+       "device [blocks-count]"
+#define mke2fs_full_usage \
+       "\t-b size\tblock size in bytes\n" \
+       "\t-c\tcheck for bad blocks before creating\n" \
+       "\t-E opts\tset extended options\n" \
+       "\t-f size\tfragment size in bytes\n" \
+       "\t-F\tforce (ignore sanity checks)\n" \
+       "\t-g num\tnumber of blocks in a block group\n" \
+       "\t-i ratio\tthe bytes/inode ratio\n" \
+       "\t-j\tcreate a journal (ext3)\n" \
+       "\t-J opts\tset journal options (size/device)\n" \
+       "\t-l file\tread bad blocks list from file\n" \
+       "\t-L lbl\tset the volume label\n" \
+       "\t-m percent\tpercent of fs blocks to reserve for admin\n" \
+       "\t-M dir\tset last mounted directory\n" \
+       "\t-n\tdo not actually create anything\n" \
+       "\t-N num\tnumber of inodes to create\n" \
+       "\t-o os\tset the 'creator os' field\n" \
+       "\t-O features\tdir_index/filetype/has_journal/journal_dev/sparse_super\n" \
+       "\t-q\tquiet execution\n" \
+       "\t-r rev\tset filesystem revision\n" \
+       "\t-S\twrite superblock and group descriptors only\n" \
+       "\t-T fs-type\tset usage type (news/largefile/largefile4)\n" \
+       "\t-v\tverbose execution"
+
 #define mkfifo_trivial_usage \
        "[OPTIONS] name"
 #define mkfifo_full_usage \