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
);