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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
75683450 | 2 | |
11c3a366 TA |
3 | #include <dirent.h> |
4 | #include <errno.h> | |
5 | #include <fcntl.h> | |
ed457f13 | 6 | #include <ftw.h> |
8752c575 | 7 | #include <langinfo.h> |
11c3a366 | 8 | #include <libintl.h> |
8752c575 | 9 | #include <locale.h> |
11c3a366 TA |
10 | #include <stddef.h> |
11 | #include <stdint.h> | |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
75683450 | 14 | #include <sys/mman.h> |
11c3a366 | 15 | #include <sys/stat.h> |
75683450 | 16 | |
ed457f13 | 17 | #include "def.h" |
a0956174 | 18 | #include "dirent-util.h" |
5f1b0cc6 | 19 | #include "env-util.h" |
3ffd4af2 | 20 | #include "fd-util.h" |
93cc7779 | 21 | #include "hashmap.h" |
3ffd4af2 | 22 | #include "locale-util.h" |
bb15fafe | 23 | #include "path-util.h" |
75683450 | 24 | #include "set.h" |
8b43440b | 25 | #include "string-table.h" |
07630cea | 26 | #include "string-util.h" |
75683450 | 27 | #include "strv.h" |
07630cea | 28 | #include "utf8.h" |
75683450 LP |
29 | |
30 | static int add_locales_from_archive(Set *locales) { | |
31 | /* Stolen from glibc... */ | |
32 | ||
33 | struct locarhead { | |
34 | uint32_t magic; | |
35 | /* Serial number. */ | |
36 | uint32_t serial; | |
37 | /* Name hash table. */ | |
38 | uint32_t namehash_offset; | |
39 | uint32_t namehash_used; | |
40 | uint32_t namehash_size; | |
41 | /* String table. */ | |
42 | uint32_t string_offset; | |
43 | uint32_t string_used; | |
44 | uint32_t string_size; | |
45 | /* Table with locale records. */ | |
46 | uint32_t locrectab_offset; | |
47 | uint32_t locrectab_used; | |
48 | uint32_t locrectab_size; | |
49 | /* MD5 sum hash table. */ | |
50 | uint32_t sumhash_offset; | |
51 | uint32_t sumhash_used; | |
52 | uint32_t sumhash_size; | |
53 | }; | |
54 | ||
55 | struct namehashent { | |
56 | /* Hash value of the name. */ | |
57 | uint32_t hashval; | |
58 | /* Offset of the name in the string table. */ | |
59 | uint32_t name_offset; | |
60 | /* Offset of the locale record. */ | |
61 | uint32_t locrec_offset; | |
62 | }; | |
63 | ||
64 | const struct locarhead *h; | |
65 | const struct namehashent *e; | |
66 | const void *p = MAP_FAILED; | |
67 | _cleanup_close_ int fd = -1; | |
68 | size_t sz = 0; | |
69 | struct stat st; | |
da6053d0 | 70 | size_t i; |
75683450 LP |
71 | int r; |
72 | ||
73 | fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC); | |
74 | if (fd < 0) | |
75 | return errno == ENOENT ? 0 : -errno; | |
76 | ||
77 | if (fstat(fd, &st) < 0) | |
78 | return -errno; | |
79 | ||
80 | if (!S_ISREG(st.st_mode)) | |
81 | return -EBADMSG; | |
82 | ||
83 | if (st.st_size < (off_t) sizeof(struct locarhead)) | |
84 | return -EBADMSG; | |
85 | ||
86 | p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0); | |
87 | if (p == MAP_FAILED) | |
88 | return -errno; | |
89 | ||
90 | h = (const struct locarhead *) p; | |
91 | if (h->magic != 0xde020109 || | |
92 | h->namehash_offset + h->namehash_size > st.st_size || | |
93 | h->string_offset + h->string_size > st.st_size || | |
94 | h->locrectab_offset + h->locrectab_size > st.st_size || | |
95 | h->sumhash_offset + h->sumhash_size > st.st_size) { | |
96 | r = -EBADMSG; | |
97 | goto finish; | |
98 | } | |
99 | ||
100 | e = (const struct namehashent*) ((const uint8_t*) p + h->namehash_offset); | |
101 | for (i = 0; i < h->namehash_size; i++) { | |
102 | char *z; | |
103 | ||
104 | if (e[i].locrec_offset == 0) | |
105 | continue; | |
106 | ||
107 | if (!utf8_is_valid((char*) p + e[i].name_offset)) | |
108 | continue; | |
109 | ||
110 | z = strdup((char*) p + e[i].name_offset); | |
111 | if (!z) { | |
112 | r = -ENOMEM; | |
113 | goto finish; | |
114 | } | |
115 | ||
116 | r = set_consume(locales, z); | |
117 | if (r < 0) | |
118 | goto finish; | |
119 | } | |
120 | ||
121 | r = 0; | |
122 | ||
123 | finish: | |
124 | if (p != MAP_FAILED) | |
125 | munmap((void*) p, sz); | |
126 | ||
127 | return r; | |
128 | } | |
129 | ||
130 | static int add_locales_from_libdir (Set *locales) { | |
131 | _cleanup_closedir_ DIR *dir = NULL; | |
132 | struct dirent *entry; | |
133 | int r; | |
134 | ||
135 | dir = opendir("/usr/lib/locale"); | |
136 | if (!dir) | |
137 | return errno == ENOENT ? 0 : -errno; | |
138 | ||
139 | FOREACH_DIRENT(entry, dir, return -errno) { | |
140 | char *z; | |
141 | ||
331fb4ca EV |
142 | dirent_ensure_type(dir, entry); |
143 | ||
75683450 LP |
144 | if (entry->d_type != DT_DIR) |
145 | continue; | |
146 | ||
147 | z = strdup(entry->d_name); | |
148 | if (!z) | |
149 | return -ENOMEM; | |
150 | ||
151 | r = set_consume(locales, z); | |
152 | if (r < 0 && r != -EEXIST) | |
153 | return r; | |
154 | } | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | int get_locales(char ***ret) { | |
160 | _cleanup_set_free_ Set *locales = NULL; | |
161 | _cleanup_strv_free_ char **l = NULL; | |
162 | int r; | |
163 | ||
d5099efc | 164 | locales = set_new(&string_hash_ops); |
75683450 LP |
165 | if (!locales) |
166 | return -ENOMEM; | |
167 | ||
168 | r = add_locales_from_archive(locales); | |
169 | if (r < 0 && r != -ENOENT) | |
170 | return r; | |
171 | ||
172 | r = add_locales_from_libdir(locales); | |
173 | if (r < 0) | |
174 | return r; | |
175 | ||
176 | l = set_get_strv(locales); | |
177 | if (!l) | |
178 | return -ENOMEM; | |
179 | ||
180 | strv_sort(l); | |
181 | ||
1cc6c93a | 182 | *ret = TAKE_PTR(l); |
75683450 LP |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
187 | bool locale_is_valid(const char *name) { | |
188 | ||
189 | if (isempty(name)) | |
190 | return false; | |
191 | ||
192 | if (strlen(name) >= 128) | |
193 | return false; | |
194 | ||
195 | if (!utf8_is_valid(name)) | |
196 | return false; | |
197 | ||
ae6c3cc0 | 198 | if (!filename_is_valid(name)) |
75683450 LP |
199 | return false; |
200 | ||
201 | if (!string_is_safe(name)) | |
202 | return false; | |
203 | ||
204 | return true; | |
205 | } | |
a3428668 | 206 | |
8752c575 LP |
207 | void init_gettext(void) { |
208 | setlocale(LC_ALL, ""); | |
209 | textdomain(GETTEXT_PACKAGE); | |
210 | } | |
211 | ||
212 | bool is_locale_utf8(void) { | |
213 | const char *set; | |
214 | static int cached_answer = -1; | |
215 | ||
216 | /* Note that we default to 'true' here, since today UTF8 is | |
217 | * pretty much supported everywhere. */ | |
218 | ||
219 | if (cached_answer >= 0) | |
220 | goto out; | |
221 | ||
222 | if (!setlocale(LC_ALL, "")) { | |
223 | cached_answer = true; | |
224 | goto out; | |
225 | } | |
226 | ||
227 | set = nl_langinfo(CODESET); | |
228 | if (!set) { | |
229 | cached_answer = true; | |
230 | goto out; | |
231 | } | |
232 | ||
233 | if (streq(set, "UTF-8")) { | |
234 | cached_answer = true; | |
235 | goto out; | |
236 | } | |
237 | ||
5238e957 | 238 | /* For LC_CTYPE=="C" return true, because CTYPE is effectively |
8752c575 LP |
239 | * unset and everything can do to UTF-8 nowadays. */ |
240 | set = setlocale(LC_CTYPE, NULL); | |
241 | if (!set) { | |
242 | cached_answer = true; | |
243 | goto out; | |
244 | } | |
245 | ||
246 | /* Check result, but ignore the result if C was set | |
247 | * explicitly. */ | |
248 | cached_answer = | |
249 | STR_IN_SET(set, "C", "POSIX") && | |
250 | !getenv("LC_ALL") && | |
251 | !getenv("LC_CTYPE") && | |
252 | !getenv("LANG"); | |
253 | ||
254 | out: | |
255 | return (bool) cached_answer; | |
256 | } | |
257 | ||
5f1b0cc6 LP |
258 | static bool emoji_enabled(void) { |
259 | static int cached_emoji_enabled = -1; | |
260 | ||
261 | if (cached_emoji_enabled < 0) { | |
262 | int val; | |
263 | ||
264 | val = getenv_bool("SYSTEMD_EMOJI"); | |
265 | if (val < 0) | |
266 | cached_emoji_enabled = | |
267 | is_locale_utf8() && | |
268 | !STRPTR_IN_SET(getenv("TERM"), "dumb", "linux"); | |
269 | else | |
270 | cached_emoji_enabled = val; | |
271 | } | |
272 | ||
273 | return cached_emoji_enabled; | |
274 | } | |
275 | ||
323b7dc9 ZJS |
276 | const char *special_glyph(SpecialGlyph code) { |
277 | ||
5d01f5dc LP |
278 | /* A list of a number of interesting unicode glyphs we can use to decorate our output. It's probably wise to be |
279 | * conservative here, and primarily stick to the glyphs defined in the eurlatgr font, so that display still | |
280 | * works reasonably well on the Linux console. For details see: | |
281 | * | |
282 | * http://git.altlinux.org/people/legion/packages/kbd.git?p=kbd.git;a=blob;f=data/consolefonts/README.eurlatgr | |
283 | */ | |
284 | ||
dff4bf93 | 285 | static const char* const draw_table[2][_SPECIAL_GLYPH_MAX] = { |
323b7dc9 ZJS |
286 | /* ASCII fallback */ |
287 | [false] = { | |
9a6f746f LP |
288 | [SPECIAL_GLYPH_TREE_VERTICAL] = "| ", |
289 | [SPECIAL_GLYPH_TREE_BRANCH] = "|-", | |
290 | [SPECIAL_GLYPH_TREE_RIGHT] = "`-", | |
291 | [SPECIAL_GLYPH_TREE_SPACE] = " ", | |
292 | [SPECIAL_GLYPH_TRIANGULAR_BULLET] = ">", | |
293 | [SPECIAL_GLYPH_BLACK_CIRCLE] = "*", | |
294 | [SPECIAL_GLYPH_BULLET] = "*", | |
295 | [SPECIAL_GLYPH_ARROW] = "->", | |
296 | [SPECIAL_GLYPH_MDASH] = "-", | |
297 | [SPECIAL_GLYPH_ELLIPSIS] = "...", | |
298 | [SPECIAL_GLYPH_MU] = "u", | |
299 | [SPECIAL_GLYPH_CHECK_MARK] = "+", | |
300 | [SPECIAL_GLYPH_CROSS_MARK] = "-", | |
301 | [SPECIAL_GLYPH_ECSTATIC_SMILEY] = ":-]", | |
302 | [SPECIAL_GLYPH_HAPPY_SMILEY] = ":-}", | |
303 | [SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = ":-)", | |
304 | [SPECIAL_GLYPH_NEUTRAL_SMILEY] = ":-|", | |
305 | [SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = ":-(", | |
306 | [SPECIAL_GLYPH_UNHAPPY_SMILEY] = ":-{️", | |
307 | [SPECIAL_GLYPH_DEPRESSED_SMILEY] = ":-[", | |
8752c575 LP |
308 | }, |
309 | ||
323b7dc9 | 310 | /* UTF-8 */ |
b77f5e27 | 311 | [true] = { |
9a6f746f LP |
312 | [SPECIAL_GLYPH_TREE_VERTICAL] = "\342\224\202 ", /* │ */ |
313 | [SPECIAL_GLYPH_TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */ | |
314 | [SPECIAL_GLYPH_TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */ | |
315 | [SPECIAL_GLYPH_TREE_SPACE] = " ", /* */ | |
316 | [SPECIAL_GLYPH_TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */ | |
317 | [SPECIAL_GLYPH_BLACK_CIRCLE] = "\342\227\217", /* ● */ | |
318 | [SPECIAL_GLYPH_BULLET] = "\342\200\242", /* • */ | |
319 | [SPECIAL_GLYPH_ARROW] = "\342\206\222", /* → */ | |
320 | [SPECIAL_GLYPH_MDASH] = "\342\200\223", /* – */ | |
321 | [SPECIAL_GLYPH_ELLIPSIS] = "\342\200\246", /* … */ | |
322 | [SPECIAL_GLYPH_MU] = "\316\274", /* μ */ | |
323 | [SPECIAL_GLYPH_CHECK_MARK] = "\342\234\223", /* ✓ */ | |
324 | [SPECIAL_GLYPH_CROSS_MARK] = "\342\234\227", /* ✗ */ | |
325 | [SPECIAL_GLYPH_ECSTATIC_SMILEY] = "\360\237\230\207", /* 😇 */ | |
326 | [SPECIAL_GLYPH_HAPPY_SMILEY] = "\360\237\230\200", /* 😀 */ | |
327 | [SPECIAL_GLYPH_SLIGHTLY_HAPPY_SMILEY] = "\360\237\231\202", /* 🙂 */ | |
328 | [SPECIAL_GLYPH_NEUTRAL_SMILEY] = "\360\237\230\220", /* 😐 */ | |
329 | [SPECIAL_GLYPH_SLIGHTLY_UNHAPPY_SMILEY] = "\360\237\231\201", /* 🙁 */ | |
330 | [SPECIAL_GLYPH_UNHAPPY_SMILEY] = "\360\237\230\250", /* 😨️️ */ | |
331 | [SPECIAL_GLYPH_DEPRESSED_SMILEY] = "\360\237\244\242", /* 🤢 */ | |
323b7dc9 | 332 | }, |
8752c575 LP |
333 | }; |
334 | ||
5f1b0cc6 LP |
335 | assert(code < _SPECIAL_GLYPH_MAX); |
336 | ||
337 | return draw_table[code >= _SPECIAL_GLYPH_FIRST_SMILEY ? emoji_enabled() : is_locale_utf8()][code]; | |
8752c575 LP |
338 | } |
339 | ||
f2a3de01 | 340 | void locale_variables_free(char *l[_VARIABLE_LC_MAX]) { |
e6755a33 LP |
341 | LocaleVariable i; |
342 | ||
343 | if (!l) | |
344 | return; | |
345 | ||
346 | for (i = 0; i < _VARIABLE_LC_MAX; i++) | |
347 | l[i] = mfree(l[i]); | |
348 | } | |
349 | ||
a3428668 MS |
350 | static const char * const locale_variable_table[_VARIABLE_LC_MAX] = { |
351 | [VARIABLE_LANG] = "LANG", | |
352 | [VARIABLE_LANGUAGE] = "LANGUAGE", | |
353 | [VARIABLE_LC_CTYPE] = "LC_CTYPE", | |
354 | [VARIABLE_LC_NUMERIC] = "LC_NUMERIC", | |
355 | [VARIABLE_LC_TIME] = "LC_TIME", | |
356 | [VARIABLE_LC_COLLATE] = "LC_COLLATE", | |
357 | [VARIABLE_LC_MONETARY] = "LC_MONETARY", | |
358 | [VARIABLE_LC_MESSAGES] = "LC_MESSAGES", | |
359 | [VARIABLE_LC_PAPER] = "LC_PAPER", | |
360 | [VARIABLE_LC_NAME] = "LC_NAME", | |
361 | [VARIABLE_LC_ADDRESS] = "LC_ADDRESS", | |
362 | [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE", | |
363 | [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT", | |
364 | [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION" | |
365 | }; | |
366 | ||
367 | DEFINE_STRING_TABLE_LOOKUP(locale_variable, LocaleVariable); |