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:
1.4 KB
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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * lookup.c --- ext2fs directory lookup operations
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4 | *
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5 | * Copyright (C) 1993, 1994, 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 | struct lookup_struct {
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23 | const char *name;
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24 | int len;
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25 | ext2_ino_t *inode;
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26 | int found;
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27 | };
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28 |
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29 | #ifdef __TURBOC__
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30 | # pragma argsused
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31 | #endif
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32 | static int lookup_proc(struct ext2_dir_entry *dirent,
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33 | int offset EXT2FS_ATTR((unused)),
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34 | int blocksize EXT2FS_ATTR((unused)),
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35 | char *buf EXT2FS_ATTR((unused)),
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36 | void *priv_data)
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37 | {
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38 | struct lookup_struct *ls = (struct lookup_struct *) priv_data;
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39 |
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40 | if (ls->len != (dirent->name_len & 0xFF))
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41 | return 0;
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42 | if (strncmp(ls->name, dirent->name, (dirent->name_len & 0xFF)))
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43 | return 0;
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44 | *ls->inode = dirent->inode;
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45 | ls->found++;
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46 | return DIRENT_ABORT;
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47 | }
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48 |
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49 |
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50 | errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
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51 | int namelen, char *buf, ext2_ino_t *inode)
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52 | {
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53 | errcode_t retval;
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54 | struct lookup_struct ls;
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55 |
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56 | EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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57 |
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58 | ls.name = name;
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59 | ls.len = namelen;
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60 | ls.inode = inode;
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61 | ls.found = 0;
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62 |
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63 | retval = ext2fs_dir_iterate(fs, dir, 0, buf, lookup_proc, &ls);
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64 | if (retval)
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65 | return retval;
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66 |
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67 | return (ls.found) ? 0 : EXT2_ET_FILE_NOT_FOUND;
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68 | }
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69 |
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70 |
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