1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <dirent.h>
#include <errno.h>
#include <glob.h>
#include <sys/types.h>
#include "dirent-util.h"
#include "glob-util.h"
#include "macro.h"
#include "path-util.h"
#include "strv.h"
static void closedir_wrapper(void* v) {
(void) closedir(v);
}
int safe_glob(const char *path, int flags, glob_t *pglob) {
int k;
/* We want to set GLOB_ALTDIRFUNC ourselves, don't allow it to be set. */
assert(!(flags & GLOB_ALTDIRFUNC));
if (!pglob->gl_closedir)
pglob->gl_closedir = closedir_wrapper;
if (!pglob->gl_readdir)
pglob->gl_readdir = (struct dirent *(*)(void *)) readdir_no_dot;
if (!pglob->gl_opendir)
pglob->gl_opendir = (void *(*)(const char *)) opendir;
if (!pglob->gl_lstat)
pglob->gl_lstat = lstat;
if (!pglob->gl_stat)
pglob->gl_stat = stat;
errno = 0;
k = glob(path, flags | GLOB_ALTDIRFUNC, NULL, pglob);
if (k == GLOB_NOMATCH)
return -ENOENT;
if (k == GLOB_NOSPACE)
return -ENOMEM;
if (k != 0)
return errno > 0 ? -errno : -EIO;
if (strv_isempty(pglob->gl_pathv))
return -ENOENT;
return 0;
}
int glob_exists(const char *path) {
_cleanup_globfree_ glob_t g = {};
int k;
assert(path);
k = safe_glob(path, GLOB_NOSORT|GLOB_BRACE, &g);
if (k == -ENOENT)
return false;
if (k < 0)
return k;
return true;
}
int glob_extend(char ***strv, const char *path) {
_cleanup_globfree_ glob_t g = {};
int k;
k = safe_glob(path, GLOB_NOSORT|GLOB_BRACE, &g);
if (k < 0)
return k;
return strv_extend_strv(strv, g.gl_pathv, false);
}
|
