| 1 | /* Copyright (C) 1998-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library. If not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | /* This file contains only wrappers around the real glob functions. It |
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| 19 | became necessary since the glob_t structure changed. */ |
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| 20 | #include <sys/types.h> |
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| 21 | #include <glob.h> |
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| 22 | #include <shlib-compat.h> |
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| 23 | |
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| 24 | #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) |
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| 25 | |
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| 26 | /* This is the old structure. The difference is that the gl_pathc and |
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| 27 | gl_offs elements have type `int'. */ |
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| 28 | typedef struct |
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| 29 | { |
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| 30 | int gl_pathc; /* Count of paths matched by the pattern. */ |
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| 31 | char **gl_pathv; /* List of matched pathnames. */ |
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| 32 | int gl_offs; /* Slots to reserve in `gl_pathv'. */ |
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| 33 | int gl_flags; /* Set to FLAGS, maybe | GLOB_MAGCHAR. */ |
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| 34 | |
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| 35 | /* If the GLOB_ALTDIRFUNC flag is set, the following functions |
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| 36 | are used instead of the normal file access functions. */ |
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| 37 | void (*gl_closedir) (void *); |
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| 38 | struct dirent *(*gl_readdir) (void *); |
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| 39 | void *(*gl_opendir) (const char *); |
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| 40 | int (*gl_lstat) (const char *, struct stat *); |
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| 41 | int (*gl_stat) (const char *, struct stat *); |
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| 42 | } old_glob_t; |
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| 43 | |
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| 44 | |
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| 45 | int |
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| 46 | attribute_compat_text_section |
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| 47 | __old_glob (const char *pattern, int flags, |
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| 48 | int (*errfunc) (const char *, int), |
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| 49 | old_glob_t *pglob) |
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| 50 | { |
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| 51 | glob_t correct; |
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| 52 | int result; |
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| 53 | |
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| 54 | /* Construct an object of correct type. */ |
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| 55 | correct.gl_pathc = pglob->gl_pathc; |
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| 56 | correct.gl_pathv = pglob->gl_pathv; |
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| 57 | correct.gl_offs = pglob->gl_offs; |
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| 58 | correct.gl_flags = pglob->gl_flags; |
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| 59 | correct.gl_closedir = pglob->gl_closedir; |
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| 60 | correct.gl_readdir = pglob->gl_readdir; |
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| 61 | correct.gl_opendir = pglob->gl_opendir; |
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| 62 | /* Set gl_lstat and gl_stat for both gl_stat for compatibility with old |
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| 63 | implementation that did not follow dangling symlinks. */ |
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| 64 | correct.gl_lstat = pglob->gl_stat; |
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| 65 | correct.gl_stat = pglob->gl_stat; |
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| 66 | |
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| 67 | result = glob (pattern, flags, errfunc, &correct); |
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| 68 | |
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| 69 | /* And convert it back. */ |
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| 70 | pglob->gl_pathc = correct.gl_pathc; |
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| 71 | pglob->gl_pathv = correct.gl_pathv; |
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| 72 | pglob->gl_offs = correct.gl_offs; |
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| 73 | pglob->gl_flags = correct.gl_flags; |
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| 74 | pglob->gl_closedir = correct.gl_closedir; |
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| 75 | pglob->gl_readdir = correct.gl_readdir; |
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| 76 | pglob->gl_opendir = correct.gl_opendir; |
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| 77 | /* Only need to restore gl_stat. */ |
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| 78 | pglob->gl_stat = correct.gl_stat; |
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| 79 | |
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| 80 | return result; |
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| 81 | } |
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| 82 | compat_symbol (libc, __old_glob, glob, GLIBC_2_0); |
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| 83 | |
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| 84 | |
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| 85 | /* Free storage allocated in PGLOB by a previous `glob' call. */ |
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| 86 | void |
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| 87 | attribute_compat_text_section |
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| 88 | __old_globfree (old_glob_t *pglob) |
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| 89 | { |
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| 90 | glob_t correct; |
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| 91 | |
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| 92 | /* We only need these two symbols. */ |
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| 93 | correct.gl_pathc = pglob->gl_pathc; |
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| 94 | correct.gl_pathv = pglob->gl_pathv; |
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| 95 | correct.gl_offs = pglob->gl_offs; |
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| 96 | |
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| 97 | globfree (&correct); |
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| 98 | } |
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| 99 | compat_symbol (libc, __old_globfree, globfree, GLIBC_2_0); |
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| 100 | |
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| 101 | #endif |
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| 102 | |
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