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Last change
on this file since 3828 was 3320, checked in by Bruno Cornec, 11 years ago |
- Re-add (thanks git BTW) the 2.2.9 branch which had been destroyed in
the move to 3.0
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-
Property svn:eol-style
set to
native
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File size:
1.5 KB
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| Rev | Line | |
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| [3320] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * newdir.c --- create a new directory block
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| 4 | *
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| 5 | * Copyright (C) 1994, 1995 Theodore Ts'o.
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| 6 | *
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| 7 | * %Begin-Header%
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| 8 | * This file may be redistributed under the terms of the GNU Public
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| 9 | * License.
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| 10 | * %End-Header%
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| 11 | */
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| 12 |
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| 13 | #include <stdio.h>
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| 14 | #include <string.h>
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| 15 | #if HAVE_UNISTD_H
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| 16 | #include <unistd.h>
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| 17 | #endif
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| 18 |
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| 19 | #include "ext2_fs.h"
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| 20 | #include "ext2fs.h"
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| 21 |
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| 22 | #ifndef EXT2_FT_DIR
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| 23 | #define EXT2_FT_DIR 2
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| 24 | #endif
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| 25 |
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| 26 | /*
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| 27 | * Create new directory block
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| 28 | */
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| 29 | errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
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| 30 | ext2_ino_t parent_ino, char **block)
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| 31 | {
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| 32 | struct ext2_dir_entry *dir = NULL;
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| 33 | errcode_t retval;
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| 34 | char *buf;
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| 35 | int rec_len;
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| 36 | int filetype = 0;
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| 37 |
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| 38 | EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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| 39 |
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| 40 | retval = ext2fs_get_mem(fs->blocksize, &buf);
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| 41 | if (retval)
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| 42 | return retval;
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| 43 | memset(buf, 0, fs->blocksize);
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| 44 | dir = (struct ext2_dir_entry *) buf;
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| 45 | dir->rec_len = fs->blocksize;
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| 46 |
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| 47 | if (dir_ino) {
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| 48 | if (fs->super->s_feature_incompat &
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| 49 | EXT2_FEATURE_INCOMPAT_FILETYPE)
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| 50 | filetype = EXT2_FT_DIR << 8;
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| 51 | /*
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| 52 | * Set up entry for '.'
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| 53 | */
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| 54 | dir->inode = dir_ino;
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| 55 | dir->name_len = 1 | filetype;
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| 56 | dir->name[0] = '.';
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| 57 | rec_len = dir->rec_len - EXT2_DIR_REC_LEN(1);
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| 58 | dir->rec_len = EXT2_DIR_REC_LEN(1);
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| 59 |
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| 60 | /*
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| 61 | * Set up entry for '..'
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| 62 | */
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| 63 | dir = (struct ext2_dir_entry *) (buf + dir->rec_len);
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| 64 | dir->rec_len = rec_len;
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| 65 | dir->inode = parent_ino;
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| 66 | dir->name_len = 2 | filetype;
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| 67 | dir->name[0] = '.';
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| 68 | dir->name[1] = '.';
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| 69 | }
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| 70 | *block = buf;
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| 71 | return 0;
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| 72 | }
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