1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2014 Lennart Poettering
23 #include "dirent-util.h"
26 #include "locale-util.h"
27 #include "path-util.h"
29 #include "string-table.h"
30 #include "string-util.h"
34 static int add_locales_from_archive(Set *locales) {
35 /* Stolen from glibc... */
41 /* Name hash table. */
42 uint32_t namehash_offset;
43 uint32_t namehash_used;
44 uint32_t namehash_size;
46 uint32_t string_offset;
49 /* Table with locale records. */
50 uint32_t locrectab_offset;
51 uint32_t locrectab_used;
52 uint32_t locrectab_size;
53 /* MD5 sum hash table. */
54 uint32_t sumhash_offset;
55 uint32_t sumhash_used;
56 uint32_t sumhash_size;
60 /* Hash value of the name. */
62 /* Offset of the name in the string table. */
64 /* Offset of the locale record. */
65 uint32_t locrec_offset;
68 const struct locarhead *h;
69 const struct namehashent *e;
70 const void *p = MAP_FAILED;
71 _cleanup_close_ int fd = -1;
77 fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
79 return errno == ENOENT ? 0 : -errno;
81 if (fstat(fd, &st) < 0)
84 if (!S_ISREG(st.st_mode))
87 if (st.st_size < (off_t) sizeof(struct locarhead))
90 p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
94 h = (const struct locarhead *) p;
95 if (h->magic != 0xde020109 ||
96 h->namehash_offset + h->namehash_size > st.st_size ||
97 h->string_offset + h->string_size > st.st_size ||
98 h->locrectab_offset + h->locrectab_size > st.st_size ||
99 h->sumhash_offset + h->sumhash_size > st.st_size) {
104 e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset);
105 for (i = 0; i < h->namehash_size; i++) {
108 if (e[i].locrec_offset == 0)
111 if (!utf8_is_valid((char*) p + e[i].name_offset))
114 z = strdup((char*) p + e[i].name_offset);
120 r = set_consume(locales, z);
129 munmap((void*) p, sz);
134 static int add_locales_from_libdir (Set *locales) {
135 _cleanup_closedir_ DIR *dir = NULL;
136 struct dirent *entry;
139 dir = opendir("/usr/lib/locale");
141 return errno == ENOENT ? 0 : -errno;
143 FOREACH_DIRENT(entry, dir, return -errno) {
146 dirent_ensure_type(dir, entry);
148 if (entry->d_type != DT_DIR)
151 z = strdup(entry->d_name);
155 r = set_consume(locales, z);
156 if (r < 0 && r != -EEXIST)
163 int get_locales(char ***ret) {
164 _cleanup_set_free_ Set *locales = NULL;
165 _cleanup_strv_free_ char **l = NULL;
168 locales = set_new(&string_hash_ops);
172 r = add_locales_from_archive(locales);
173 if (r < 0 && r != -ENOENT)
176 r = add_locales_from_libdir(locales);
180 l = set_get_strv(locales);
191 bool locale_is_valid(const char *name) {
196 if (strlen(name) >= 128)
199 if (!utf8_is_valid(name))
202 if (!filename_is_valid(name))
205 if (!string_is_safe(name))
211 void init_gettext(void) {
212 setlocale(LC_ALL, "");
213 textdomain(GETTEXT_PACKAGE);
216 bool is_locale_utf8(void) {
218 static int cached_answer = -1;
220 /* Note that we default to 'true' here, since today UTF8 is
221 * pretty much supported everywhere. */
223 if (cached_answer >= 0)
226 if (!setlocale(LC_ALL, "")) {
227 cached_answer = true;
231 set = nl_langinfo(CODESET);
233 cached_answer = true;
237 if (streq(set, "UTF-8")) {
238 cached_answer = true;
242 /* For LC_CTYPE=="C" return true, because CTYPE is effectly
243 * unset and everything can do to UTF-8 nowadays. */
244 set = setlocale(LC_CTYPE, NULL);
246 cached_answer = true;
250 /* Check result, but ignore the result if C was set
253 STR_IN_SET(set, "C", "POSIX") &&
255 !getenv("LC_CTYPE") &&
259 return (bool) cached_answer;
262 static thread_local Set *keymaps = NULL;
266 const struct stat *sb,
268 struct FTW *ftwbuf) {
276 if (!endswith(fpath, ".map") &&
277 !endswith(fpath, ".map.gz"))
280 p = strdup(basename(fpath));
284 e = endswith(p, ".map");
288 e = endswith(p, ".map.gz");
292 r = set_consume(keymaps, p);
293 if (r < 0 && r != -EEXIST)
299 int get_keymaps(char ***ret) {
300 _cleanup_strv_free_ char **l = NULL;
304 keymaps = set_new(&string_hash_ops);
308 NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
309 r = nftw(dir, nftw_cb, 20, FTW_PHYS|FTW_ACTIONRETVAL);
312 log_debug("Directory not found %s", dir);
314 log_debug_errno(r, "Can't add keymap: %m");
317 l = set_get_strv(keymaps);
319 set_free_free(keymaps);
335 bool keymap_is_valid(const char *name) {
340 if (strlen(name) >= 128)
343 if (!utf8_is_valid(name))
346 if (!filename_is_valid(name))
349 if (!string_is_safe(name))
355 const char *special_glyph(SpecialGlyph code) {
357 /* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be
358 * conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still
359 * works reasonably well on the Linux console. For details see:
361 * http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr
364 static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = {
367 [TREE_VERTICAL] = "| ",
368 [TREE_BRANCH] = "|-",
371 [TRIANGULAR_BULLET] = ">",
372 [BLACK_CIRCLE] = "*",
380 [TREE_VERTICAL] = "\342\224\202 ", /* │ */
381 [TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
382 [TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
383 [TREE_SPACE] = " ", /* */
384 [TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */
385 [BLACK_CIRCLE] = "\342\227\217", /* ● */
386 [ARROW] = "\342\206\222", /* → */
387 [MDASH] = "\342\200\223", /* – */
388 [ELLIPSIS] = "\342\200\246", /* … */
392 return draw_table[is_locale_utf8()][code];
395 static const char * const locale_variable_table[_VARIABLE_LC_MAX] = {
396 [VARIABLE_LANG] = "LANG",
397 [VARIABLE_LANGUAGE] = "LANGUAGE",
398 [VARIABLE_LC_CTYPE] = "LC_CTYPE",
399 [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
400 [VARIABLE_LC_TIME] = "LC_TIME",
401 [VARIABLE_LC_COLLATE] = "LC_COLLATE",
402 [VARIABLE_LC_MONETARY] = "LC_MONETARY",
403 [VARIABLE_LC_MESSAGES] = "LC_MESSAGES",
404 [VARIABLE_LC_PAPER] = "LC_PAPER",
405 [VARIABLE_LC_NAME] = "LC_NAME",
406 [VARIABLE_LC_ADDRESS] = "LC_ADDRESS",
407 [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE",
408 [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT",
409 [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
412 DEFINE_STRING_TABLE_LOOKUP(locale_variable, LocaleVariable);