1 | /* Copyright (C) 1993-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <limits.h> |
20 | #include <stddef.h> |
21 | #include <string.h> |
22 | #include <dirent.h> |
23 | #include <unistd.h> |
24 | #include <sys/types.h> |
25 | #include <hurd.h> |
26 | #include <hurd/fd.h> |
27 | #include "dirstream.h" |
28 | |
29 | |
30 | /* Read a directory entry from DIRP. */ |
31 | int |
32 | __readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result) |
33 | { |
34 | if (sizeof (struct dirent64) == sizeof (struct dirent)) |
35 | /* We should in fact just be an alias to readdir64_r on this machine. */ |
36 | return __readdir64_r (dirp: dirp, |
37 | entry: (struct dirent64 *) entry, |
38 | result: (struct dirent64 **) result); |
39 | |
40 | struct dirent64 *result64; |
41 | union |
42 | { |
43 | struct dirent64 d; |
44 | char b[offsetof (struct dirent64, d_name) + UCHAR_MAX + 1]; |
45 | } u; |
46 | int err; |
47 | |
48 | err = __readdir64_r (dirp: dirp, entry: &u.d, result: &result64); |
49 | if (result64) |
50 | { |
51 | entry->d_fileno = result64->d_fileno; |
52 | entry->d_reclen = result64->d_reclen; |
53 | entry->d_type = result64->d_type; |
54 | entry->d_namlen = result64->d_namlen; |
55 | memcpy (entry->d_name, result64->d_name, result64->d_namlen + 1); |
56 | *result = entry; |
57 | } |
58 | else |
59 | *result = NULL; |
60 | |
61 | return err; |
62 | } |
63 | |
64 | weak_alias (__readdir_r, readdir_r) |
65 | |