Last change
on this file since 2587 was 1765, checked in by Bruno Cornec, 17 years ago |
Update to busybox 1.7.2
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-
Property svn:eol-style
set to
native
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File size:
1.5 KB
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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 | }
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71 | *block = buf;
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72 | return 0;
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73 | }
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