1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* newdir.c --- create a new directory block
|
|
|
|
*
|
1997-04-29 20:17:09 +04:00
|
|
|
* Copyright (C) 1994, 1995 Theodore Ts'o.
|
|
|
|
*
|
|
|
|
* %Begin-Header%
|
|
|
|
* This file may be redistributed under the terms of the GNU Public
|
|
|
|
* License.
|
|
|
|
* %End-Header%
|
1997-04-26 17:21:57 +04:00
|
|
|
*/
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string.h>
|
1997-08-11 03:07:40 +04:00
|
|
|
#if HAVE_UNISTD_H
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <unistd.h>
|
1997-08-11 03:07:40 +04:00
|
|
|
#endif
|
1997-04-26 17:34:30 +04:00
|
|
|
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
#if EXT2_FLAT_INCLUDES
|
|
|
|
#include "ext2_fs.h"
|
|
|
|
#else
|
1997-04-26 17:21:57 +04:00
|
|
|
#include <linux/ext2_fs.h>
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
#endif
|
1997-04-26 17:21:57 +04:00
|
|
|
|
|
|
|
#include "ext2fs.h"
|
|
|
|
|
1999-10-23 04:58:54 +04:00
|
|
|
#ifndef EXT2_FT_DIR
|
|
|
|
#define EXT2_FT_DIR 2
|
|
|
|
#endif
|
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Create new directory block
|
|
|
|
*/
|
|
|
|
errcode_t ext2fs_new_dir_block(ext2_filsys fs, ino_t dir_ino, ino_t parent_ino,
|
|
|
|
char **block)
|
|
|
|
{
|
1997-10-26 06:41:24 +03:00
|
|
|
struct ext2_dir_entry *dir = NULL;
|
|
|
|
errcode_t retval;
|
|
|
|
char *buf;
|
|
|
|
int rec_len;
|
1999-10-23 04:58:54 +04:00
|
|
|
int filetype = 0;
|
|
|
|
struct ext2fs_sb *sb;
|
1997-04-26 17:21:57 +04:00
|
|
|
|
1997-04-26 17:34:30 +04:00
|
|
|
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
|
|
|
|
|
1997-10-26 06:41:24 +03:00
|
|
|
retval = ext2fs_get_mem(fs->blocksize, (void **) &buf);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
1997-04-26 17:21:57 +04:00
|
|
|
memset(buf, 0, fs->blocksize);
|
|
|
|
dir = (struct ext2_dir_entry *) buf;
|
|
|
|
dir->rec_len = fs->blocksize;
|
|
|
|
|
|
|
|
if (dir_ino) {
|
1999-10-23 04:58:54 +04:00
|
|
|
sb = (struct ext2fs_sb *) fs->super;
|
|
|
|
if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
|
|
|
|
filetype = EXT2_FT_DIR << 8;
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Set up entry for '.'
|
|
|
|
*/
|
|
|
|
dir->inode = dir_ino;
|
1999-10-23 04:58:54 +04:00
|
|
|
dir->name_len = 1 | filetype;
|
1997-04-26 17:21:57 +04:00
|
|
|
dir->name[0] = '.';
|
1999-10-23 04:58:54 +04:00
|
|
|
rec_len = dir->rec_len - EXT2_DIR_REC_LEN(1);
|
|
|
|
dir->rec_len = EXT2_DIR_REC_LEN(1);
|
1997-04-26 17:21:57 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set up entry for '..'
|
|
|
|
*/
|
|
|
|
dir = (struct ext2_dir_entry *) (buf + dir->rec_len);
|
|
|
|
dir->rec_len = rec_len;
|
|
|
|
dir->inode = parent_ino;
|
1999-10-23 04:58:54 +04:00
|
|
|
dir->name_len = 2 | filetype;
|
1997-04-26 17:21:57 +04:00
|
|
|
dir->name[0] = '.';
|
|
|
|
dir->name[1] = '.';
|
|
|
|
|
|
|
|
}
|
|
|
|
*block = buf;
|
|
|
|
return 0;
|
|
|
|
}
|