2 This file is part of systemd.
4 Copyright 2014 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
35 #include "dirent-util.h"
38 #include "locale-util.h"
39 #include "path-util.h"
41 #include "string-table.h"
42 #include "string-util.h"
46 static int add_locales_from_archive(Set *locales) {
47 /* Stolen from glibc... */
53 /* Name hash table. */
54 uint32_t namehash_offset;
55 uint32_t namehash_used;
56 uint32_t namehash_size;
58 uint32_t string_offset;
61 /* Table with locale records. */
62 uint32_t locrectab_offset;
63 uint32_t locrectab_used;
64 uint32_t locrectab_size;
65 /* MD5 sum hash table. */
66 uint32_t sumhash_offset;
67 uint32_t sumhash_used;
68 uint32_t sumhash_size;
72 /* Hash value of the name. */
74 /* Offset of the name in the string table. */
76 /* Offset of the locale record. */
77 uint32_t locrec_offset;
80 const struct locarhead *h;
81 const struct namehashent *e;
82 const void *p = MAP_FAILED;
83 _cleanup_close_ int fd = -1;
89 fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
91 return errno == ENOENT ? 0 : -errno;
93 if (fstat(fd, &st) < 0)
96 if (!S_ISREG(st.st_mode))
99 if (st.st_size < (off_t) sizeof(struct locarhead))
102 p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
106 h = (const struct locarhead *) p;
107 if (h->magic != 0xde020109 ||
108 h->namehash_offset + h->namehash_size > st.st_size ||
109 h->string_offset + h->string_size > st.st_size ||
110 h->locrectab_offset + h->locrectab_size > st.st_size ||
111 h->sumhash_offset + h->sumhash_size > st.st_size) {
116 e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset);
117 for (i = 0; i < h->namehash_size; i++) {
120 if (e[i].locrec_offset == 0)
123 if (!utf8_is_valid((char*) p + e[i].name_offset))
126 z = strdup((char*) p + e[i].name_offset);
132 r = set_consume(locales, z);
141 munmap((void*) p, sz);
146 static int add_locales_from_libdir (Set *locales) {
147 _cleanup_closedir_ DIR *dir = NULL;
148 struct dirent *entry;
151 dir = opendir("/usr/lib/locale");
153 return errno == ENOENT ? 0 : -errno;
155 FOREACH_DIRENT(entry, dir, return -errno) {
158 dirent_ensure_type(dir, entry);
160 if (entry->d_type != DT_DIR)
163 z = strdup(entry->d_name);
167 r = set_consume(locales, z);
168 if (r < 0 && r != -EEXIST)
175 int get_locales(char ***ret) {
176 _cleanup_set_free_ Set *locales = NULL;
177 _cleanup_strv_free_ char **l = NULL;
180 locales = set_new(&string_hash_ops);
184 r = add_locales_from_archive(locales);
185 if (r < 0 && r != -ENOENT)
188 r = add_locales_from_libdir(locales);
192 l = set_get_strv(locales);
204 bool locale_is_valid(const char *name) {
209 if (strlen(name) >= 128)
212 if (!utf8_is_valid(name))
215 if (!filename_is_valid(name))
218 if (!string_is_safe(name))
224 void init_gettext(void) {
225 setlocale(LC_ALL, "");
226 textdomain(GETTEXT_PACKAGE);
229 bool is_locale_utf8(void) {
231 static int cached_answer = -1;
233 /* Note that we default to 'true' here, since today UTF8 is
234 * pretty much supported everywhere. */
236 if (cached_answer >= 0)
239 if (!setlocale(LC_ALL, "")) {
240 cached_answer = true;
244 set = nl_langinfo(CODESET);
246 cached_answer = true;
250 if (streq(set, "UTF-8")) {
251 cached_answer = true;
255 /* For LC_CTYPE=="C" return true, because CTYPE is effectly
256 * unset and everything can do to UTF-8 nowadays. */
257 set = setlocale(LC_CTYPE, NULL);
259 cached_answer = true;
263 /* Check result, but ignore the result if C was set
266 STR_IN_SET(set, "C", "POSIX") &&
268 !getenv("LC_CTYPE") &&
272 return (bool) cached_answer;
275 static thread_local Set *keymaps = NULL;
279 const struct stat *sb,
281 struct FTW *ftwbuf) {
289 if (!endswith(fpath, ".map") &&
290 !endswith(fpath, ".map.gz"))
293 p = strdup(basename(fpath));
297 e = endswith(p, ".map");
301 e = endswith(p, ".map.gz");
305 r = set_consume(keymaps, p);
306 if (r < 0 && r != -EEXIST)
312 int get_keymaps(char ***ret) {
313 _cleanup_strv_free_ char **l = NULL;
317 keymaps = set_new(&string_hash_ops);
321 NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
322 r = nftw(dir, nftw_cb, 20, FTW_MOUNT|FTW_PHYS|FTW_ACTIONRETVAL);
325 log_debug("Directory not found %s", dir);
327 log_debug_errno(r, "Can't add keymap: %m");
330 l = set_get_strv(keymaps);
332 set_free_free(keymaps);
349 bool keymap_is_valid(const char *name) {
354 if (strlen(name) >= 128)
357 if (!utf8_is_valid(name))
360 if (!filename_is_valid(name))
363 if (!string_is_safe(name))
369 const char *special_glyph(SpecialGlyph code) {
371 static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
374 [TREE_VERTICAL] = "| ",
375 [TREE_BRANCH] = "|-",
378 [TRIANGULAR_BULLET] = ">",
379 [BLACK_CIRCLE] = "*",
386 [TREE_VERTICAL] = "\342\224\202 ", /* │ */
387 [TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
388 [TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
389 [TREE_SPACE] = " ", /* */
390 [TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */
391 [BLACK_CIRCLE] = "\342\227\217", /* ● */
392 [ARROW] = "\342\206\222", /* → */
393 [MDASH] = "\342\200\223", /* – */
397 return draw_table[is_locale_utf8()][code];
400 static const char * const locale_variable_table[_VARIABLE_LC_MAX] = {
401 [VARIABLE_LANG] = "LANG",
402 [VARIABLE_LANGUAGE] = "LANGUAGE",
403 [VARIABLE_LC_CTYPE] = "LC_CTYPE",
404 [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
405 [VARIABLE_LC_TIME] = "LC_TIME",
406 [VARIABLE_LC_COLLATE] = "LC_COLLATE",
407 [VARIABLE_LC_MONETARY] = "LC_MONETARY",
408 [VARIABLE_LC_MESSAGES] = "LC_MESSAGES",
409 [VARIABLE_LC_PAPER] = "LC_PAPER",
410 [VARIABLE_LC_NAME] = "LC_NAME",
411 [VARIABLE_LC_ADDRESS] = "LC_ADDRESS",
412 [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE",
413 [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT",
414 [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
417 DEFINE_STRING_TABLE_LOOKUP(locale_variable, LocaleVariable);