]>
Commit | Line | Data |
---|---|---|
2c21044f KS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
07630cea | 22 | #include <dirent.h> |
2c21044f | 23 | #include <errno.h> |
2c21044f | 24 | #include <stdio.h> |
07630cea LP |
25 | #include <stdlib.h> |
26 | #include <string.h> | |
2c21044f | 27 | |
3ffd4af2 | 28 | #include "conf-files.h" |
a0956174 | 29 | #include "dirent-util.h" |
3ffd4af2 | 30 | #include "fd-util.h" |
07630cea LP |
31 | #include "hashmap.h" |
32 | #include "log.h" | |
2c21044f | 33 | #include "macro.h" |
2c21044f | 34 | #include "missing.h" |
9eb977db | 35 | #include "path-util.h" |
07630cea LP |
36 | #include "string-util.h" |
37 | #include "strv.h" | |
38 | #include "util.h" | |
2c21044f | 39 | |
cba2ef02 | 40 | static int files_add(Hashmap *h, const char *root, const char *path, const char *suffix) { |
fabe5c0e | 41 | _cleanup_closedir_ DIR *dir = NULL; |
1d13f648 LP |
42 | const char *dirpath; |
43 | int r; | |
e02caf30 | 44 | |
cba2ef02 | 45 | assert(path); |
cebed500 LP |
46 | assert(suffix); |
47 | ||
1d13f648 | 48 | dirpath = prefix_roota(root, path); |
cebed500 | 49 | |
cba2ef02 | 50 | dir = opendir(dirpath); |
2c21044f KS |
51 | if (!dir) { |
52 | if (errno == ENOENT) | |
53 | return 0; | |
54 | return -errno; | |
55 | } | |
56 | ||
57 | for (;;) { | |
7d5e9c0f | 58 | struct dirent *de; |
2c21044f KS |
59 | char *p; |
60 | ||
a2be63f9 FW |
61 | errno = 0; |
62 | de = readdir(dir); | |
63 | if (!de && errno != 0) | |
64 | return -errno; | |
2c21044f KS |
65 | |
66 | if (!de) | |
67 | break; | |
68 | ||
69 | if (!dirent_is_file_with_suffix(de, suffix)) | |
70 | continue; | |
71 | ||
fabe5c0e LP |
72 | p = strjoin(dirpath, "/", de->d_name, NULL); |
73 | if (!p) | |
e02caf30 | 74 | return -ENOMEM; |
2c21044f | 75 | |
2b6bf07d | 76 | r = hashmap_put(h, basename(p), p); |
fabe5c0e LP |
77 | if (r == -EEXIST) { |
78 | log_debug("Skipping overridden file: %s.", p); | |
79 | free(p); | |
80 | } else if (r < 0) { | |
81 | free(p); | |
82 | return r; | |
83 | } else if (r == 0) { | |
84 | log_debug("Duplicate file %s", p); | |
2c21044f KS |
85 | free(p); |
86 | } | |
87 | } | |
88 | ||
e02caf30 | 89 | return 0; |
2c21044f KS |
90 | } |
91 | ||
92 | static int base_cmp(const void *a, const void *b) { | |
93 | const char *s1, *s2; | |
94 | ||
95 | s1 = *(char * const *)a; | |
96 | s2 = *(char * const *)b; | |
2b6bf07d | 97 | return strcmp(basename(s1), basename(s2)); |
2c21044f KS |
98 | } |
99 | ||
fabe5c0e | 100 | static int conf_files_list_strv_internal(char ***strv, const char *suffix, const char *root, char **dirs) { |
e1d75803 | 101 | _cleanup_hashmap_free_ Hashmap *fh = NULL; |
fabe5c0e | 102 | char **files, **p; |
578ac060 | 103 | int r; |
2c21044f | 104 | |
fabe5c0e LP |
105 | assert(strv); |
106 | assert(suffix); | |
107 | ||
108 | /* This alters the dirs string array */ | |
7d8da2c9 | 109 | if (!path_strv_resolve_uniq(dirs, root)) |
fabe5c0e | 110 | return -ENOMEM; |
2c21044f | 111 | |
d5099efc | 112 | fh = hashmap_new(&string_hash_ops); |
fabe5c0e LP |
113 | if (!fh) |
114 | return -ENOMEM; | |
2c21044f KS |
115 | |
116 | STRV_FOREACH(p, dirs) { | |
cba2ef02 | 117 | r = files_add(fh, root, *p, suffix); |
fabe5c0e | 118 | if (r == -ENOMEM) { |
fabe5c0e LP |
119 | return r; |
120 | } else if (r < 0) | |
c33b3297 MS |
121 | log_debug_errno(r, "Failed to search for files in %s: %m", |
122 | *p); | |
2c21044f KS |
123 | } |
124 | ||
125 | files = hashmap_get_strv(fh); | |
126 | if (files == NULL) { | |
fabe5c0e | 127 | return -ENOMEM; |
2c21044f | 128 | } |
fabe5c0e | 129 | |
7ff7394d | 130 | qsort_safe(files, hashmap_size(fh), sizeof(char *), base_cmp); |
fabe5c0e | 131 | *strv = files; |
2c21044f | 132 | |
fabe5c0e LP |
133 | return 0; |
134 | } | |
135 | ||
844ec79b | 136 | int conf_files_list_strv(char ***strv, const char *suffix, const char *root, const char* const* dirs) { |
fabe5c0e LP |
137 | _cleanup_strv_free_ char **copy = NULL; |
138 | ||
139 | assert(strv); | |
140 | assert(suffix); | |
141 | ||
142 | copy = strv_copy((char**) dirs); | |
143 | if (!copy) | |
144 | return -ENOMEM; | |
145 | ||
146 | return conf_files_list_strv_internal(strv, suffix, root, copy); | |
2c21044f KS |
147 | } |
148 | ||
7850b3b8 | 149 | int conf_files_list(char ***strv, const char *suffix, const char *root, const char *dir, ...) { |
8201ad81 LP |
150 | _cleanup_strv_free_ char **dirs = NULL; |
151 | va_list ap; | |
fabe5c0e LP |
152 | |
153 | assert(strv); | |
154 | assert(suffix); | |
2c21044f | 155 | |
8201ad81 LP |
156 | va_start(ap, dir); |
157 | dirs = strv_new_ap(dir, ap); | |
158 | va_end(ap); | |
159 | ||
160 | if (!dirs) | |
161 | return -ENOMEM; | |
fabe5c0e LP |
162 | |
163 | return conf_files_list_strv_internal(strv, suffix, root, dirs); | |
164 | } | |
2c21044f | 165 | |
fabe5c0e LP |
166 | int conf_files_list_nulstr(char ***strv, const char *suffix, const char *root, const char *d) { |
167 | _cleanup_strv_free_ char **dirs = NULL; | |
168 | ||
169 | assert(strv); | |
170 | assert(suffix); | |
171 | ||
172 | dirs = strv_split_nulstr(d); | |
173 | if (!dirs) | |
174 | return -ENOMEM; | |
2c21044f | 175 | |
fabe5c0e | 176 | return conf_files_list_strv_internal(strv, suffix, root, dirs); |
2c21044f | 177 | } |