1 /* SPDX-License-Identifier: LGPL-2.1+ */
18 #include "dirent-util.h"
21 #include "locale-util.h"
22 #include "path-util.h"
24 #include "string-table.h"
25 #include "string-util.h"
29 static int add_locales_from_archive(Set *locales) {
30 /* Stolen from glibc... */
36 /* Name hash table. */
37 uint32_t namehash_offset;
38 uint32_t namehash_used;
39 uint32_t namehash_size;
41 uint32_t string_offset;
44 /* Table with locale records. */
45 uint32_t locrectab_offset;
46 uint32_t locrectab_used;
47 uint32_t locrectab_size;
48 /* MD5 sum hash table. */
49 uint32_t sumhash_offset;
50 uint32_t sumhash_used;
51 uint32_t sumhash_size;
55 /* Hash value of the name. */
57 /* Offset of the name in the string table. */
59 /* Offset of the locale record. */
60 uint32_t locrec_offset;
63 const struct locarhead *h;
64 const struct namehashent *e;
65 const void *p = MAP_FAILED;
66 _cleanup_close_ int fd = -1;
72 fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
74 return errno == ENOENT ? 0 : -errno;
76 if (fstat(fd, &st) < 0)
79 if (!S_ISREG(st.st_mode))
82 if (st.st_size < (off_t) sizeof(struct locarhead))
85 p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
89 h = (const struct locarhead *) p;
90 if (h->magic != 0xde020109 ||
91 h->namehash_offset + h->namehash_size > st.st_size ||
92 h->string_offset + h->string_size > st.st_size ||
93 h->locrectab_offset + h->locrectab_size > st.st_size ||
94 h->sumhash_offset + h->sumhash_size > st.st_size) {
99 e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset);
100 for (i = 0; i < h->namehash_size; i++) {
103 if (e[i].locrec_offset == 0)
106 if (!utf8_is_valid((char*) p + e[i].name_offset))
109 z = strdup((char*) p + e[i].name_offset);
115 r = set_consume(locales, z);
124 munmap((void*) p, sz);
129 static int add_locales_from_libdir (Set *locales) {
130 _cleanup_closedir_ DIR *dir = NULL;
131 struct dirent *entry;
134 dir = opendir("/usr/lib/locale");
136 return errno == ENOENT ? 0 : -errno;
138 FOREACH_DIRENT(entry, dir, return -errno) {
141 dirent_ensure_type(dir, entry);
143 if (entry->d_type != DT_DIR)
146 z = strdup(entry->d_name);
150 r = set_consume(locales, z);
151 if (r < 0 && r != -EEXIST)
158 int get_locales(char ***ret) {
159 _cleanup_set_free_ Set *locales = NULL;
160 _cleanup_strv_free_ char **l = NULL;
163 locales = set_new(&string_hash_ops);
167 r = add_locales_from_archive(locales);
168 if (r < 0 && r != -ENOENT)
171 r = add_locales_from_libdir(locales);
175 l = set_get_strv(locales);
186 bool locale_is_valid(const char *name) {
191 if (strlen(name) >= 128)
194 if (!utf8_is_valid(name))
197 if (!filename_is_valid(name))
200 if (!string_is_safe(name))
206 void init_gettext(void) {
207 setlocale(LC_ALL, "");
208 textdomain(GETTEXT_PACKAGE);
211 bool is_locale_utf8(void) {
213 static int cached_answer = -1;
215 /* Note that we default to 'true' here, since today UTF8 is
216 * pretty much supported everywhere. */
218 if (cached_answer >= 0)
221 if (!setlocale(LC_ALL, "")) {
222 cached_answer = true;
226 set = nl_langinfo(CODESET);
228 cached_answer = true;
232 if (streq(set, "UTF-8")) {
233 cached_answer = true;
237 /* For LC_CTYPE=="C" return true, because CTYPE is effectly
238 * unset and everything can do to UTF-8 nowadays. */
239 set = setlocale(LC_CTYPE, NULL);
241 cached_answer = true;
245 /* Check result, but ignore the result if C was set
248 STR_IN_SET(set, "C", "POSIX") &&
250 !getenv("LC_CTYPE") &&
254 return (bool) cached_answer;
257 static thread_local Set *keymaps = NULL;
261 const struct stat *sb,
263 struct FTW *ftwbuf) {
271 if (!endswith(fpath, ".map") &&
272 !endswith(fpath, ".map.gz"))
275 p = strdup(basename(fpath));
279 e = endswith(p, ".map");
283 e = endswith(p, ".map.gz");
287 r = set_consume(keymaps, p);
288 if (r < 0 && r != -EEXIST)
294 int get_keymaps(char ***ret) {
295 _cleanup_strv_free_ char **l = NULL;
299 keymaps = set_new(&string_hash_ops);
303 NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
304 r = nftw(dir, nftw_cb, 20, FTW_PHYS|FTW_ACTIONRETVAL);
307 log_debug("Directory not found %s", dir);
309 log_debug_errno(r, "Can't add keymap: %m");
312 l = set_get_strv(keymaps);
314 set_free_free(keymaps);
330 bool keymap_is_valid(const char *name) {
335 if (strlen(name) >= 128)
338 if (!utf8_is_valid(name))
341 if (!filename_is_valid(name))
344 if (!string_is_safe(name))
350 const char *special_glyph(SpecialGlyph code) {
352 /* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be
353 * conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still
354 * works reasonably well on the Linux console. For details see:
356 * http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr
359 static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
362 [TREE_VERTICAL] = "| ",
363 [TREE_BRANCH] = "|-",
366 [TRIANGULAR_BULLET] = ">",
367 [BLACK_CIRCLE] = "*",
375 [TREE_VERTICAL] = "\342\224\202 ", /* │ */
376 [TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
377 [TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
378 [TREE_SPACE] = " ", /* */
379 [TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */
380 [BLACK_CIRCLE] = "\342\227\217", /* ● */
381 [ARROW] = "\342\206\222", /* → */
382 [MDASH] = "\342\200\223", /* – */
383 [ELLIPSIS] = "\342\200\246", /* … */
387 return draw_table[is_locale_utf8()][code];
390 static const char * const locale_variable_table[_VARIABLE_LC_MAX] = {
391 [VARIABLE_LANG] = "LANG",
392 [VARIABLE_LANGUAGE] = "LANGUAGE",
393 [VARIABLE_LC_CTYPE] = "LC_CTYPE",
394 [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
395 [VARIABLE_LC_TIME] = "LC_TIME",
396 [VARIABLE_LC_COLLATE] = "LC_COLLATE",
397 [VARIABLE_LC_MONETARY] = "LC_MONETARY",
398 [VARIABLE_LC_MESSAGES] = "LC_MESSAGES",
399 [VARIABLE_LC_PAPER] = "LC_PAPER",
400 [VARIABLE_LC_NAME] = "LC_NAME",
401 [VARIABLE_LC_ADDRESS] = "LC_ADDRESS",
402 [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE",
403 [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT",
404 [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
407 DEFINE_STRING_TABLE_LOOKUP(locale_variable, LocaleVariable);