1 | /* Copyright (C) 1998-2022 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 | /* This file contains only wrappers around the real glob functions. It |
19 | became necessary since the glob_t structure changed. */ |
20 | #include <sys/types.h> |
21 | #include <glob.h> |
22 | #include <shlib-compat.h> |
23 | |
24 | #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) |
25 | |
26 | /* This is the old structure. The difference is that the gl_pathc and |
27 | gl_offs elements have type `int'. */ |
28 | typedef struct |
29 | { |
30 | int gl_pathc; /* Count of paths matched by the pattern. */ |
31 | char **gl_pathv; /* List of matched pathnames. */ |
32 | int gl_offs; /* Slots to reserve in `gl_pathv'. */ |
33 | int gl_flags; /* Set to FLAGS, maybe | GLOB_MAGCHAR. */ |
34 | |
35 | /* If the GLOB_ALTDIRFUNC flag is set, the following functions |
36 | are used instead of the normal file access functions. */ |
37 | void (*gl_closedir) (void *); |
38 | struct dirent *(*gl_readdir) (void *); |
39 | void *(*gl_opendir) (const char *); |
40 | int (*gl_lstat) (const char *, struct stat *); |
41 | int (*gl_stat) (const char *, struct stat *); |
42 | } old_glob_t; |
43 | |
44 | |
45 | int |
46 | attribute_compat_text_section |
47 | __old_glob (const char *pattern, int flags, |
48 | int (*errfunc) (const char *, int), |
49 | old_glob_t *pglob) |
50 | { |
51 | glob_t correct; |
52 | int result; |
53 | |
54 | /* Construct an object of correct type. */ |
55 | correct.gl_pathc = pglob->gl_pathc; |
56 | correct.gl_pathv = pglob->gl_pathv; |
57 | correct.gl_offs = pglob->gl_offs; |
58 | correct.gl_flags = pglob->gl_flags; |
59 | correct.gl_closedir = pglob->gl_closedir; |
60 | correct.gl_readdir = pglob->gl_readdir; |
61 | correct.gl_opendir = pglob->gl_opendir; |
62 | /* Set gl_lstat and gl_stat for both gl_stat for compatibility with old |
63 | implementation that did not follow dangling symlinks. */ |
64 | correct.gl_lstat = pglob->gl_stat; |
65 | correct.gl_stat = pglob->gl_stat; |
66 | |
67 | result = glob (pattern, flags, errfunc, &correct); |
68 | |
69 | /* And convert it back. */ |
70 | pglob->gl_pathc = correct.gl_pathc; |
71 | pglob->gl_pathv = correct.gl_pathv; |
72 | pglob->gl_offs = correct.gl_offs; |
73 | pglob->gl_flags = correct.gl_flags; |
74 | pglob->gl_closedir = correct.gl_closedir; |
75 | pglob->gl_readdir = correct.gl_readdir; |
76 | pglob->gl_opendir = correct.gl_opendir; |
77 | /* Only need to restore gl_stat. */ |
78 | pglob->gl_stat = correct.gl_stat; |
79 | |
80 | return result; |
81 | } |
82 | compat_symbol (libc, __old_glob, glob, GLIBC_2_0); |
83 | |
84 | |
85 | /* Free storage allocated in PGLOB by a previous `glob' call. */ |
86 | void |
87 | attribute_compat_text_section |
88 | __old_globfree (old_glob_t *pglob) |
89 | { |
90 | glob_t correct; |
91 | |
92 | /* We only need these two symbols. */ |
93 | correct.gl_pathc = pglob->gl_pathc; |
94 | correct.gl_pathv = pglob->gl_pathv; |
95 | correct.gl_offs = pglob->gl_offs; |
96 | |
97 | globfree (&correct); |
98 | } |
99 | compat_symbol (libc, __old_globfree, globfree, GLIBC_2_0); |
100 | |
101 | #endif |
102 | |