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1 | /* Copyright (C) 1993-2019 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, | |
37 | (struct dirent64 *) entry, | |
38 | (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, &u.d, &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) |