]>
Commit | Line | Data |
---|---|---|
1 | /* Implementation of the locale program according to POSIX 9945-2. | |
2 | Copyright (C) 1995-2024 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published | |
7 | by the Free Software Foundation; version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #ifdef HAVE_CONFIG_H | |
19 | # include <config.h> | |
20 | #endif | |
21 | ||
22 | #include <argp.h> | |
23 | #include <argz.h> | |
24 | #include <dirent.h> | |
25 | #include <errno.h> | |
26 | #include <error.h> | |
27 | #include <fcntl.h> | |
28 | #include <langinfo.h> | |
29 | #include <libintl.h> | |
30 | #include <limits.h> | |
31 | #include <locale.h> | |
32 | #include <search.h> | |
33 | #include <stdio.h> | |
34 | #include <stdio_ext.h> | |
35 | #include <stdlib.h> | |
36 | #include <string.h> | |
37 | #include <unistd.h> | |
38 | #include <stdint.h> | |
39 | #include <sys/mman.h> | |
40 | #include <sys/stat.h> | |
41 | ||
42 | #include "record-status.h" | |
43 | #include "localeinfo.h" | |
44 | #include "charmap-dir.h" | |
45 | #include "../locarchive.h" | |
46 | #include <programs/xmalloc.h> | |
47 | ||
48 | #define ARCHIVE_NAME COMPLOCALEDIR "/locale-archive" | |
49 | ||
50 | /* If set print the name of the category. */ | |
51 | static int show_category_name; | |
52 | ||
53 | /* If set print the name of the item. */ | |
54 | static int show_keyword_name; | |
55 | ||
56 | /* Print names of all available locales. */ | |
57 | static int do_all; | |
58 | ||
59 | /* Print names of all available character maps. */ | |
60 | static int do_charmaps = 0; | |
61 | ||
62 | /* Name and version of program. */ | |
63 | static void print_version (FILE *stream, struct argp_state *state); | |
64 | void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; | |
65 | ||
66 | /* Definitions of arguments for argp functions. */ | |
67 | static const struct argp_option options[] = | |
68 | { | |
69 | { NULL, 0, NULL, 0, N_("System information:") }, | |
70 | { "all-locales", 'a', NULL, OPTION_NO_USAGE, | |
71 | N_("Write names of available locales") }, | |
72 | { "charmaps", 'm', NULL, OPTION_NO_USAGE, | |
73 | N_("Write names of available charmaps") }, | |
74 | { NULL, 0, NULL, 0, N_("Modify output format:") }, | |
75 | { "category-name", 'c', NULL, 0, N_("Write names of selected categories") }, | |
76 | { "keyword-name", 'k', NULL, 0, N_("Write names of selected keywords") }, | |
77 | { "verbose", 'v', NULL, 0, N_("Print more information") }, | |
78 | { NULL, 0, NULL, 0, NULL } | |
79 | }; | |
80 | ||
81 | /* Short description of program. */ | |
82 | static const char doc[] = N_("Get locale-specific information."); | |
83 | ||
84 | /* Strings for arguments in help texts. */ | |
85 | static const char args_doc[] = N_("NAME\n[-a|-m]"); | |
86 | ||
87 | /* Prototype for option handler. */ | |
88 | static error_t parse_opt (int key, char *arg, struct argp_state *state); | |
89 | ||
90 | /* Function to print some extra text in the help message. */ | |
91 | static char *more_help (int key, const char *text, void *input); | |
92 | ||
93 | /* Data structure to communicate with argp functions. */ | |
94 | static struct argp argp = | |
95 | { | |
96 | options, parse_opt, args_doc, doc, NULL, more_help | |
97 | }; | |
98 | ||
99 | ||
100 | /* We don't have these constants defined because we don't use them. Give | |
101 | default values. */ | |
102 | #define CTYPE_MB_CUR_MIN 0 | |
103 | #define CTYPE_MB_CUR_MAX 0 | |
104 | #define CTYPE_HASH_SIZE 0 | |
105 | #define CTYPE_HASH_LAYERS 0 | |
106 | #define CTYPE_CLASS 0 | |
107 | #define CTYPE_TOUPPER_EB 0 | |
108 | #define CTYPE_TOLOWER_EB 0 | |
109 | #define CTYPE_TOUPPER_EL 0 | |
110 | #define CTYPE_TOLOWER_EL 0 | |
111 | ||
112 | /* Definition of the data structure which represents a category and its | |
113 | items. */ | |
114 | struct category | |
115 | { | |
116 | int cat_id; | |
117 | const char *name; | |
118 | size_t number; | |
119 | struct cat_item | |
120 | { | |
121 | int item_id; | |
122 | const char *name; | |
123 | enum { std, opt } status; | |
124 | enum value_type value_type; | |
125 | int min; | |
126 | int max; | |
127 | } *item_desc; | |
128 | }; | |
129 | ||
130 | /* Simple helper macro. */ | |
131 | #define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0]))) | |
132 | ||
133 | /* For some tricky stuff. */ | |
134 | #define NO_PAREN(Item, More...) Item, ## More | |
135 | ||
136 | /* We have all categories defined in `categories.def'. Now construct | |
137 | the description and data structure used for all categories. */ | |
138 | #define DEFINE_ELEMENT(Item, More...) { Item, ## More }, | |
139 | #define DEFINE_CATEGORY(category, name, items, postload) \ | |
140 | static struct cat_item category##_desc[] = \ | |
141 | { \ | |
142 | NO_PAREN items \ | |
143 | }; | |
144 | ||
145 | #include "categories.def" | |
146 | #undef DEFINE_CATEGORY | |
147 | ||
148 | static struct category category[] = | |
149 | { | |
150 | #define DEFINE_CATEGORY(category, name, items, postload) \ | |
151 | [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \ | |
152 | category##_desc }, | |
153 | #include "categories.def" | |
154 | #undef DEFINE_CATEGORY | |
155 | }; | |
156 | #define NCATEGORIES NELEMS (category) | |
157 | ||
158 | ||
159 | /* Automatically set variable. */ | |
160 | extern const char *__progname; | |
161 | ||
162 | /* helper function for extended name handling. */ | |
163 | extern void locale_special (const char *name, int show_category_name, | |
164 | int show_keyword_name); | |
165 | ||
166 | /* Prototypes for local functions. */ | |
167 | static void print_LC_IDENTIFICATION (void *mapped, size_t size); | |
168 | static void print_LC_CTYPE (void *mapped, size_t size); | |
169 | static void write_locales (void); | |
170 | static int nameentcmp (const void *a, const void *b); | |
171 | static int write_archive_locales (void **all_datap, char *linebuf); | |
172 | static void write_charmaps (void); | |
173 | static void show_locale_vars (void); | |
174 | static void show_info (const char *name); | |
175 | static void try_setlocale (int category, const char *category_name); | |
176 | static char *quote_string (const char *input); | |
177 | static void setlocale_diagnostics (void); | |
178 | ||
179 | ||
180 | int | |
181 | main (int argc, char *argv[]) | |
182 | { | |
183 | int remaining; | |
184 | ||
185 | /* Set initial values for global variables. */ | |
186 | show_category_name = 0; | |
187 | show_keyword_name = 0; | |
188 | ||
189 | /* Set locale. Do not set LC_ALL because the other categories must | |
190 | not be affected (according to POSIX.2). */ | |
191 | try_setlocale (LC_CTYPE, "LC_CTYPE"); | |
192 | try_setlocale (LC_MESSAGES, "LC_MESSAGES"); | |
193 | ||
194 | /* Initialize the message catalog. */ | |
195 | textdomain (PACKAGE); | |
196 | ||
197 | /* Parse and process arguments. */ | |
198 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); | |
199 | ||
200 | /* `-a' requests the names of all available locales. */ | |
201 | if (do_all != 0) | |
202 | { | |
203 | setlocale_diagnostics (); | |
204 | try_setlocale (LC_COLLATE, "LC_COLLATE"); | |
205 | write_locales (); | |
206 | exit (EXIT_SUCCESS); | |
207 | } | |
208 | ||
209 | /* `m' requests the names of all available charmaps. The names can be | |
210 | used for the -f argument to localedef(1). */ | |
211 | if (do_charmaps != 0) | |
212 | { | |
213 | setlocale_diagnostics (); | |
214 | write_charmaps (); | |
215 | exit (EXIT_SUCCESS); | |
216 | } | |
217 | ||
218 | /* Specific information about the current locale are requested. | |
219 | Change to this locale now. */ | |
220 | try_setlocale (LC_ALL, "LC_ALL"); | |
221 | setlocale_diagnostics (); | |
222 | ||
223 | /* If no real argument is given we have to print the contents of the | |
224 | current locale definition variables. These are LANG and the LC_*. */ | |
225 | if (remaining == argc && show_keyword_name == 0 && show_category_name == 0) | |
226 | { | |
227 | show_locale_vars (); | |
228 | exit (EXIT_SUCCESS); | |
229 | } | |
230 | ||
231 | /* Process all given names. */ | |
232 | while (remaining < argc) | |
233 | show_info (argv[remaining++]); | |
234 | ||
235 | exit (EXIT_SUCCESS); | |
236 | } | |
237 | ||
238 | ||
239 | /* Handle program arguments. */ | |
240 | static error_t | |
241 | parse_opt (int key, char *arg, struct argp_state *state) | |
242 | { | |
243 | switch (key) | |
244 | { | |
245 | case 'a': | |
246 | do_all = 1; | |
247 | break; | |
248 | case 'c': | |
249 | show_category_name = 1; | |
250 | break; | |
251 | case 'm': | |
252 | do_charmaps = 1; | |
253 | break; | |
254 | case 'k': | |
255 | show_keyword_name = 1; | |
256 | break; | |
257 | case 'v': | |
258 | verbose = 1; | |
259 | break; | |
260 | default: | |
261 | return ARGP_ERR_UNKNOWN; | |
262 | } | |
263 | return 0; | |
264 | } | |
265 | ||
266 | ||
267 | static char * | |
268 | more_help (int key, const char *text, void *input) | |
269 | { | |
270 | char *tp = NULL; | |
271 | switch (key) | |
272 | { | |
273 | case ARGP_KEY_HELP_EXTRA: | |
274 | /* We print some extra information. */ | |
275 | if (asprintf (&tp, gettext ("\ | |
276 | For bug reporting instructions, please see:\n\ | |
277 | %s.\n"), REPORT_BUGS_TO) < 0) | |
278 | return NULL; | |
279 | return tp; | |
280 | default: | |
281 | break; | |
282 | } | |
283 | return (char *) text; | |
284 | } | |
285 | ||
286 | ||
287 | /* Print the version information. */ | |
288 | static void | |
289 | print_version (FILE *stream, struct argp_state *state) | |
290 | { | |
291 | fprintf (stream, "locale %s%s\n", PKGVERSION, VERSION); | |
292 | fprintf (stream, gettext ("\ | |
293 | Copyright (C) %s Free Software Foundation, Inc.\n\ | |
294 | This is free software; see the source for copying conditions. There is NO\n\ | |
295 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | |
296 | "), "2024"); | |
297 | fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); | |
298 | } | |
299 | ||
300 | ||
301 | /* Simple action function which prints arguments as strings. */ | |
302 | static void | |
303 | print_names (const void *nodep, VISIT value, int level) | |
304 | { | |
305 | if (value == postorder || value == leaf) | |
306 | puts (*(char **) nodep); | |
307 | } | |
308 | ||
309 | ||
310 | static int | |
311 | select_dirs (const struct dirent *dirent) | |
312 | { | |
313 | int result = 0; | |
314 | ||
315 | if (strcmp (dirent->d_name, ".") != 0 && strcmp (dirent->d_name, "..") != 0) | |
316 | { | |
317 | mode_t mode = 0; | |
318 | ||
319 | if (dirent->d_type != DT_UNKNOWN && dirent->d_type != DT_LNK) | |
320 | mode = DTTOIF (dirent->d_type); | |
321 | else | |
322 | { | |
323 | struct stat64 st; | |
324 | char buf[sizeof (COMPLOCALEDIR) | |
325 | + strlen (dirent->d_name) + 1]; | |
326 | ||
327 | stpcpy (stpcpy (stpcpy (buf, COMPLOCALEDIR), "/"), | |
328 | dirent->d_name); | |
329 | ||
330 | if (stat64 (buf, &st) == 0) | |
331 | mode = st.st_mode; | |
332 | } | |
333 | ||
334 | result = S_ISDIR (mode); | |
335 | } | |
336 | ||
337 | return result; | |
338 | } | |
339 | ||
340 | ||
341 | static void | |
342 | print_LC_IDENTIFICATION (void *mapped, size_t size) | |
343 | { | |
344 | /* Read the information from the file. */ | |
345 | struct | |
346 | { | |
347 | unsigned int magic; | |
348 | unsigned int nstrings; | |
349 | unsigned int strindex[0]; | |
350 | } *filedata = mapped; | |
351 | ||
352 | if (filedata->magic == LIMAGIC (LC_IDENTIFICATION) | |
353 | && (sizeof *filedata | |
354 | + (filedata->nstrings | |
355 | * sizeof (unsigned int)) | |
356 | <= size)) | |
357 | { | |
358 | const char *str; | |
359 | ||
360 | #define HANDLE(idx, name) \ | |
361 | str = ((char *) mapped \ | |
362 | + filedata->strindex[_NL_ITEM_INDEX (_NL_IDENTIFICATION_##idx)]); \ | |
363 | if (*str != '\0') \ | |
364 | printf ("%9s | %s\n", name, str) | |
365 | HANDLE (TITLE, "title"); | |
366 | HANDLE (SOURCE, "source"); | |
367 | HANDLE (ADDRESS, "address"); | |
368 | HANDLE (CONTACT, "contact"); | |
369 | HANDLE (EMAIL, "email"); | |
370 | HANDLE (TEL, "telephone"); | |
371 | HANDLE (FAX, "fax"); | |
372 | HANDLE (LANGUAGE, "language"); | |
373 | HANDLE (TERRITORY, "territory"); | |
374 | HANDLE (AUDIENCE, "audience"); | |
375 | HANDLE (APPLICATION, "application"); | |
376 | HANDLE (ABBREVIATION, "abbreviation"); | |
377 | HANDLE (REVISION, "revision"); | |
378 | HANDLE (DATE, "date"); | |
379 | } | |
380 | } | |
381 | ||
382 | ||
383 | static void | |
384 | print_LC_CTYPE (void *mapped, size_t size) | |
385 | { | |
386 | struct | |
387 | { | |
388 | unsigned int magic; | |
389 | unsigned int nstrings; | |
390 | unsigned int strindex[0]; | |
391 | } *filedata = mapped; | |
392 | ||
393 | if (filedata->magic == LIMAGIC (LC_CTYPE) | |
394 | && (sizeof *filedata | |
395 | + (filedata->nstrings | |
396 | * sizeof (unsigned int)) | |
397 | <= size)) | |
398 | { | |
399 | const char *str; | |
400 | ||
401 | str = ((char *) mapped | |
402 | + filedata->strindex[_NL_ITEM_INDEX (_NL_CTYPE_CODESET_NAME)]); | |
403 | if (*str != '\0') | |
404 | printf (" codeset | %s\n", str); | |
405 | } | |
406 | } | |
407 | ||
408 | ||
409 | /* Write the names of all available locales to stdout. We have some | |
410 | sources of the information: the contents of the locale directory | |
411 | and the locale.alias file. To avoid duplicates and print the | |
412 | result is a reasonable order we put all entries is a search tree | |
413 | and print them afterwards. */ | |
414 | static void | |
415 | write_locales (void) | |
416 | { | |
417 | char linebuf[80]; | |
418 | void *all_data = NULL; | |
419 | struct dirent **dirents; | |
420 | int ndirents; | |
421 | int cnt; | |
422 | char *alias_path; | |
423 | size_t alias_path_len; | |
424 | char *entry; | |
425 | int first_locale = 1; | |
426 | ||
427 | #define PUT(name) tsearch (name, &all_data, \ | |
428 | (int (*) (const void *, const void *)) strcoll) | |
429 | #define GET(name) tfind (name, &all_data, \ | |
430 | (int (*) (const void *, const void *)) strcoll) | |
431 | ||
432 | /* `POSIX' locale is always available (POSIX.2 4.34.3). */ | |
433 | PUT ("POSIX"); | |
434 | /* And so is the "C" locale. */ | |
435 | PUT ("C"); | |
436 | ||
437 | memset (linebuf, '-', sizeof (linebuf) - 1); | |
438 | linebuf[sizeof (linebuf) - 1] = '\0'; | |
439 | ||
440 | /* First scan the locale archive. */ | |
441 | if (write_archive_locales (&all_data, linebuf)) | |
442 | first_locale = 0; | |
443 | ||
444 | /* Now we can look for all files in the directory. */ | |
445 | ndirents = scandir (COMPLOCALEDIR, &dirents, select_dirs, | |
446 | alphasort); | |
447 | for (cnt = 0; cnt < ndirents; ++cnt) | |
448 | { | |
449 | /* Test whether at least the LC_CTYPE data is there. Some | |
450 | directories only contain translations. */ | |
451 | char buf[sizeof (COMPLOCALEDIR) | |
452 | + strlen (dirents[cnt]->d_name) | |
453 | + sizeof "/LC_IDENTIFICATION"]; | |
454 | char *enddir; | |
455 | struct stat64 st; | |
456 | ||
457 | stpcpy (enddir = stpcpy (stpcpy (stpcpy (buf, | |
458 | COMPLOCALEDIR), | |
459 | "/"), | |
460 | dirents[cnt]->d_name), | |
461 | "/LC_IDENTIFICATION"); | |
462 | ||
463 | if (stat64 (buf, &st) == 0 && S_ISREG (st.st_mode)) | |
464 | { | |
465 | if (verbose && GET (dirents[cnt]->d_name) == NULL) | |
466 | { | |
467 | /* Provide some nice output of all kinds of | |
468 | information. */ | |
469 | int fd; | |
470 | ||
471 | if (! first_locale) | |
472 | putchar_unlocked ('\n'); | |
473 | first_locale = 0; | |
474 | ||
475 | printf ("locale: %-15.15s directory: %.*s\n%s\n", | |
476 | dirents[cnt]->d_name, (int) (enddir - buf), buf, | |
477 | linebuf); | |
478 | ||
479 | fd = open64 (buf, O_RDONLY); | |
480 | if (fd != -1) | |
481 | { | |
482 | void *mapped = mmap64 (NULL, st.st_size, PROT_READ, | |
483 | MAP_SHARED, fd, 0); | |
484 | if (mapped != MAP_FAILED) | |
485 | { | |
486 | print_LC_IDENTIFICATION (mapped, st.st_size); | |
487 | ||
488 | munmap (mapped, st.st_size); | |
489 | } | |
490 | ||
491 | close (fd); | |
492 | ||
493 | /* Now try to get the charset information. */ | |
494 | strcpy (enddir, "/LC_CTYPE"); | |
495 | fd = open64 (buf, O_RDONLY); | |
496 | if (fd != -1 && fstat64 (fd, &st) >= 0 | |
497 | && ((mapped = mmap64 (NULL, st.st_size, PROT_READ, | |
498 | MAP_SHARED, fd, 0)) | |
499 | != MAP_FAILED)) | |
500 | { | |
501 | print_LC_CTYPE (mapped, st.st_size); | |
502 | ||
503 | munmap (mapped, st.st_size); | |
504 | } | |
505 | ||
506 | if (fd != -1) | |
507 | close (fd); | |
508 | } | |
509 | } | |
510 | ||
511 | /* If the verbose format is not selected we simply | |
512 | collect the names. */ | |
513 | PUT (xstrdup (dirents[cnt]->d_name)); | |
514 | } | |
515 | } | |
516 | if (ndirents > 0) | |
517 | free (dirents); | |
518 | ||
519 | /* Now read the locale.alias files. */ | |
520 | if (argz_create_sep (LOCALE_ALIAS_PATH, ':', &alias_path, &alias_path_len)) | |
521 | error (1, errno, gettext ("while preparing output")); | |
522 | ||
523 | entry = NULL; | |
524 | while ((entry = argz_next (alias_path, alias_path_len, entry))) | |
525 | { | |
526 | static const char aliasfile[] = "/locale.alias"; | |
527 | FILE *fp; | |
528 | char full_name[strlen (entry) + sizeof aliasfile]; | |
529 | ||
530 | stpcpy (stpcpy (full_name, entry), aliasfile); | |
531 | fp = fopen (full_name, "rm"); | |
532 | if (fp == NULL) | |
533 | /* Ignore non-existing files. */ | |
534 | continue; | |
535 | ||
536 | /* No threads present. */ | |
537 | __fsetlocking (fp, FSETLOCKING_BYCALLER); | |
538 | ||
539 | while (! feof_unlocked (fp)) | |
540 | { | |
541 | /* It is a reasonable approach to use a fix buffer here | |
542 | because | |
543 | a) we are only interested in the first two fields | |
544 | b) these fields must be usable as file names and so must | |
545 | not be that long */ | |
546 | char buf[BUFSIZ]; | |
547 | char *alias; | |
548 | char *value; | |
549 | char *cp; | |
550 | ||
551 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) | |
552 | /* EOF reached. */ | |
553 | break; | |
554 | ||
555 | cp = buf; | |
556 | /* Ignore leading white space. */ | |
557 | while (isspace (cp[0]) && cp[0] != '\n') | |
558 | ++cp; | |
559 | ||
560 | /* A leading '#' signals a comment line. */ | |
561 | if (cp[0] != '\0' && cp[0] != '#' && cp[0] != '\n') | |
562 | { | |
563 | alias = cp++; | |
564 | while (cp[0] != '\0' && !isspace (cp[0])) | |
565 | ++cp; | |
566 | /* Terminate alias name. */ | |
567 | if (cp[0] != '\0') | |
568 | *cp++ = '\0'; | |
569 | ||
570 | /* Now look for the beginning of the value. */ | |
571 | while (isspace (cp[0])) | |
572 | ++cp; | |
573 | ||
574 | if (cp[0] != '\0') | |
575 | { | |
576 | value = cp++; | |
577 | while (cp[0] != '\0' && !isspace (cp[0])) | |
578 | ++cp; | |
579 | /* Terminate value. */ | |
580 | if (cp[0] == '\n') | |
581 | { | |
582 | /* This has to be done to make the following | |
583 | test for the end of line possible. We are | |
584 | looking for the terminating '\n' which do not | |
585 | overwrite here. */ | |
586 | *cp++ = '\0'; | |
587 | *cp = '\n'; | |
588 | } | |
589 | else if (cp[0] != '\0') | |
590 | *cp++ = '\0'; | |
591 | ||
592 | /* Add the alias. */ | |
593 | if (! verbose && GET (value) != NULL) | |
594 | PUT (xstrdup (alias)); | |
595 | } | |
596 | } | |
597 | ||
598 | /* Possibly not the whole line fits into the buffer. | |
599 | Ignore the rest of the line. */ | |
600 | while (strchr (cp, '\n') == NULL) | |
601 | { | |
602 | cp = buf; | |
603 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) | |
604 | /* Make sure the inner loop will be left. The outer | |
605 | loop will exit at the `feof' test. */ | |
606 | *cp = '\n'; | |
607 | } | |
608 | } | |
609 | ||
610 | fclose (fp); | |
611 | } | |
612 | ||
613 | if (! verbose) | |
614 | { | |
615 | twalk (all_data, print_names); | |
616 | } | |
617 | } | |
618 | ||
619 | ||
620 | struct nameent | |
621 | { | |
622 | char *name; | |
623 | uint32_t locrec_offset; | |
624 | }; | |
625 | ||
626 | ||
627 | static int | |
628 | nameentcmp (const void *a, const void *b) | |
629 | { | |
630 | return strcoll (((const struct nameent *) a)->name, | |
631 | ((const struct nameent *) b)->name); | |
632 | } | |
633 | ||
634 | ||
635 | static int | |
636 | write_archive_locales (void **all_datap, char *linebuf) | |
637 | { | |
638 | struct stat64 st; | |
639 | void *all_data = *all_datap; | |
640 | size_t len = 0; | |
641 | struct locarhead *head; | |
642 | struct namehashent *namehashtab; | |
643 | char *addr = MAP_FAILED; | |
644 | int fd, ret = 0; | |
645 | uint32_t cnt; | |
646 | ||
647 | fd = open64 (ARCHIVE_NAME, O_RDONLY); | |
648 | if (fd < 0) | |
649 | return 0; | |
650 | ||
651 | if (fstat64 (fd, &st) < 0 || st.st_size < sizeof (*head)) | |
652 | goto error_out; | |
653 | ||
654 | len = st.st_size; | |
655 | addr = mmap64 (NULL, len, PROT_READ, MAP_SHARED, fd, 0); | |
656 | if (addr == MAP_FAILED) | |
657 | goto error_out; | |
658 | ||
659 | head = (struct locarhead *) addr; | |
660 | if (head->namehash_offset + head->namehash_size > len | |
661 | || head->string_offset + head->string_size > len | |
662 | || head->locrectab_offset + head->locrectab_size > len | |
663 | || head->sumhash_offset + head->sumhash_size > len) | |
664 | goto error_out; | |
665 | ||
666 | namehashtab = (struct namehashent *) (addr + head->namehash_offset); | |
667 | if (! verbose) | |
668 | { | |
669 | for (cnt = 0; cnt < head->namehash_size; ++cnt) | |
670 | if (namehashtab[cnt].locrec_offset != 0) | |
671 | { | |
672 | PUT (xstrdup (addr + namehashtab[cnt].name_offset)); | |
673 | ++ret; | |
674 | } | |
675 | } | |
676 | else | |
677 | { | |
678 | struct nameent *names; | |
679 | uint32_t used; | |
680 | ||
681 | names = (struct nameent *) xmalloc (head->namehash_used | |
682 | * sizeof (struct nameent)); | |
683 | for (cnt = used = 0; cnt < head->namehash_size; ++cnt) | |
684 | if (namehashtab[cnt].locrec_offset != 0) | |
685 | { | |
686 | names[used].name = addr + namehashtab[cnt].name_offset; | |
687 | names[used++].locrec_offset = namehashtab[cnt].locrec_offset; | |
688 | } | |
689 | ||
690 | /* Sort the names. */ | |
691 | qsort (names, used, sizeof (struct nameent), nameentcmp); | |
692 | ||
693 | for (cnt = 0; cnt < used; ++cnt) | |
694 | { | |
695 | struct locrecent *locrec; | |
696 | ||
697 | PUT (xstrdup (names[cnt].name)); | |
698 | ||
699 | if (cnt) | |
700 | putchar_unlocked ('\n'); | |
701 | ||
702 | printf ("locale: %-15.15s archive: " ARCHIVE_NAME "\n%s\n", | |
703 | names[cnt].name, linebuf); | |
704 | ||
705 | locrec = (struct locrecent *) (addr + names[cnt].locrec_offset); | |
706 | ||
707 | print_LC_IDENTIFICATION (addr | |
708 | + locrec->record[LC_IDENTIFICATION].offset, | |
709 | locrec->record[LC_IDENTIFICATION].len); | |
710 | ||
711 | print_LC_CTYPE (addr + locrec->record[LC_CTYPE].offset, | |
712 | locrec->record[LC_CTYPE].len); | |
713 | } | |
714 | ||
715 | free (names); | |
716 | ||
717 | ret = used; | |
718 | } | |
719 | ||
720 | error_out: | |
721 | if (addr != MAP_FAILED) | |
722 | munmap (addr, len); | |
723 | close (fd); | |
724 | *all_datap = all_data; | |
725 | return ret; | |
726 | } | |
727 | ||
728 | ||
729 | /* Write the names of all available character maps to stdout. */ | |
730 | static void | |
731 | write_charmaps (void) | |
732 | { | |
733 | void *all_data = NULL; | |
734 | CHARMAP_DIR *dir; | |
735 | const char *dirent; | |
736 | ||
737 | /* Look for all files in the charmap directory. */ | |
738 | dir = charmap_opendir (CHARMAP_PATH); | |
739 | if (dir == NULL) | |
740 | return; | |
741 | ||
742 | while ((dirent = charmap_readdir (dir)) != NULL) | |
743 | { | |
744 | char **aliases; | |
745 | char **p; | |
746 | ||
747 | PUT (xstrdup (dirent)); | |
748 | ||
749 | aliases = charmap_aliases (CHARMAP_PATH, dirent); | |
750 | ||
751 | #if 0 | |
752 | /* Add the code_set_name and the aliases. */ | |
753 | for (p = aliases; *p; p++) | |
754 | PUT (xstrdup (*p)); | |
755 | #else | |
756 | /* Add the code_set_name only. Most aliases are obsolete. */ | |
757 | p = aliases; | |
758 | if (*p) | |
759 | PUT (xstrdup (*p)); | |
760 | #endif | |
761 | ||
762 | charmap_free_aliases (aliases); | |
763 | } | |
764 | ||
765 | charmap_closedir (dir); | |
766 | ||
767 | twalk (all_data, print_names); | |
768 | } | |
769 | ||
770 | /* Print a properly quoted assignment of NAME with VAL, using double | |
771 | quotes iff DQUOTE is true. */ | |
772 | static void | |
773 | print_assignment (const char *name, const char *val, bool dquote) | |
774 | { | |
775 | printf ("%s=", name); | |
776 | if (dquote) | |
777 | putchar ('"'); | |
778 | while (*val != '\0') | |
779 | { | |
780 | size_t segment | |
781 | = strcspn (val, dquote ? "$`\"\\" : "~|&;<>()$`\\\"' \t\n"); | |
782 | printf ("%.*s", (int) segment, val); | |
783 | val += segment; | |
784 | if (*val == '\0') | |
785 | break; | |
786 | putchar ('\\'); | |
787 | putchar (*val++); | |
788 | } | |
789 | if (dquote) | |
790 | putchar ('"'); | |
791 | putchar ('\n'); | |
792 | } | |
793 | ||
794 | /* We have to show the contents of the environments determining the | |
795 | locale. */ | |
796 | static void | |
797 | show_locale_vars (void) | |
798 | { | |
799 | const char *lcall = getenv ("LC_ALL") ?: ""; | |
800 | const char *lang = getenv ("LANG") ?: ""; | |
801 | ||
802 | /* LANG has to be the first value. */ | |
803 | print_assignment ("LANG", lang, false); | |
804 | ||
805 | /* Now all categories in an unspecified order. */ | |
806 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) | |
807 | if (cat_no != LC_ALL) | |
808 | { | |
809 | const char *name = category[cat_no].name; | |
810 | const char *val = getenv (name); | |
811 | ||
812 | if (lcall[0] != '\0' || val == NULL) | |
813 | print_assignment (name, | |
814 | lcall[0] != '\0' ? lcall | |
815 | : lang[0] != '\0' ? lang | |
816 | : "POSIX", | |
817 | true); | |
818 | else | |
819 | print_assignment (name, val, false); | |
820 | } | |
821 | ||
822 | /* The last is the LC_ALL value. */ | |
823 | print_assignment ("LC_ALL", lcall, false); | |
824 | } | |
825 | ||
826 | ||
827 | /* Subroutine of show_info, below. */ | |
828 | static void | |
829 | print_item (struct cat_item *item) | |
830 | { | |
831 | switch (item->value_type) | |
832 | { | |
833 | case string: | |
834 | if (show_keyword_name) | |
835 | printf ("%s=\"", item->name); | |
836 | fputs (nl_langinfo (item->item_id) ? : "", stdout); | |
837 | if (show_keyword_name) | |
838 | putchar ('"'); | |
839 | putchar ('\n'); | |
840 | break; | |
841 | case stringarray: | |
842 | { | |
843 | const char *val; | |
844 | int cnt; | |
845 | ||
846 | if (show_keyword_name) | |
847 | printf ("%s=\"", item->name); | |
848 | ||
849 | for (cnt = 0; cnt < item->max - 1; ++cnt) | |
850 | { | |
851 | val = nl_langinfo (item->item_id + cnt); | |
852 | if (val != NULL) | |
853 | fputs (val, stdout); | |
854 | putchar (';'); | |
855 | } | |
856 | ||
857 | val = nl_langinfo (item->item_id + cnt); | |
858 | if (val != NULL) | |
859 | fputs (val, stdout); | |
860 | ||
861 | if (show_keyword_name) | |
862 | putchar ('"'); | |
863 | putchar ('\n'); | |
864 | } | |
865 | break; | |
866 | case stringlist: | |
867 | { | |
868 | int first = 1; | |
869 | const char *val = nl_langinfo (item->item_id) ? : ""; | |
870 | ||
871 | if (show_keyword_name) | |
872 | printf ("%s=", item->name); | |
873 | ||
874 | for (int cnt = 0; cnt < item->max && *val != '\0'; ++cnt) | |
875 | { | |
876 | printf ("%s%s%s%s", first ? "" : ";", | |
877 | show_keyword_name ? "\"" : "", val, | |
878 | show_keyword_name ? "\"" : ""); | |
879 | val = strchr (val, '\0') + 1; | |
880 | first = 0; | |
881 | } | |
882 | putchar ('\n'); | |
883 | } | |
884 | break; | |
885 | case byte: | |
886 | { | |
887 | const char *val = nl_langinfo (item->item_id); | |
888 | ||
889 | if (show_keyword_name) | |
890 | printf ("%s=", item->name); | |
891 | ||
892 | if (val != NULL) | |
893 | printf ("%d", *val == '\377' ? -1 : *val); | |
894 | putchar ('\n'); | |
895 | } | |
896 | break; | |
897 | case bytearray: | |
898 | { | |
899 | const char *val = nl_langinfo (item->item_id); | |
900 | int cnt = val ? strlen (val) : 0; | |
901 | ||
902 | if (show_keyword_name) | |
903 | printf ("%s=", item->name); | |
904 | ||
905 | while (cnt > 1) | |
906 | { | |
907 | printf ("%d;", *val == '\177' ? -1 : *val); | |
908 | --cnt; | |
909 | ++val; | |
910 | } | |
911 | ||
912 | printf ("%d\n", cnt == 0 || *val == '\177' ? -1 : *val); | |
913 | } | |
914 | break; | |
915 | case word: | |
916 | { | |
917 | union { unsigned int word; char *string; } val; | |
918 | val.string = nl_langinfo (item->item_id); | |
919 | if (show_keyword_name) | |
920 | printf ("%s=", item->name); | |
921 | ||
922 | printf ("%d\n", val.word); | |
923 | } | |
924 | break; | |
925 | case wordarray: | |
926 | { | |
927 | int first = 1; | |
928 | union { unsigned int *wordarray; char *string; } val; | |
929 | ||
930 | val.string = nl_langinfo (item->item_id); | |
931 | if (show_keyword_name) | |
932 | printf ("%s=", item->name); | |
933 | ||
934 | for (int cnt = 0; cnt < item->max; ++cnt) | |
935 | { | |
936 | printf ("%s%d", first ? "" : ";", val.wordarray[cnt]); | |
937 | first = 0; | |
938 | } | |
939 | putchar ('\n'); | |
940 | } | |
941 | break; | |
942 | case wstring: | |
943 | case wstringarray: | |
944 | case wstringlist: | |
945 | /* We don't print wide character information since the same | |
946 | information is available in a multibyte string. */ | |
947 | default: | |
948 | break; | |
949 | } | |
950 | } | |
951 | ||
952 | /* Show the information request for NAME. */ | |
953 | static void | |
954 | show_info (const char *name) | |
955 | { | |
956 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) | |
957 | if (cat_no != LC_ALL) | |
958 | { | |
959 | if (strcmp (name, category[cat_no].name) == 0) | |
960 | /* Print the whole category. */ | |
961 | { | |
962 | if (show_category_name != 0) | |
963 | puts (category[cat_no].name); | |
964 | ||
965 | for (size_t item_no = 0; | |
966 | item_no < category[cat_no].number; | |
967 | ++item_no) | |
968 | print_item (&category[cat_no].item_desc[item_no]); | |
969 | ||
970 | return; | |
971 | } | |
972 | ||
973 | for (size_t item_no = 0; item_no < category[cat_no].number; ++item_no) | |
974 | if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0) | |
975 | { | |
976 | if (show_category_name != 0) | |
977 | puts (category[cat_no].name); | |
978 | ||
979 | print_item (&category[cat_no].item_desc[item_no]); | |
980 | return; | |
981 | } | |
982 | } | |
983 | ||
984 | /* The name is not a standard one. | |
985 | For testing and perhaps advanced use allow some more symbols. */ | |
986 | locale_special (name, show_category_name, show_keyword_name); | |
987 | } | |
988 | ||
989 | /* Set to true by try_setlocale if setlocale fails. Used by | |
990 | setlocale_diagnostics. */ | |
991 | static bool setlocale_failed; | |
992 | ||
993 | /* Call setlocale, with non-fatal error reporting. */ | |
994 | static void | |
995 | try_setlocale (int category, const char *category_name) | |
996 | { | |
997 | if (setlocale (category, "") == NULL) | |
998 | { | |
999 | error (0, errno, gettext ("Cannot set %s to default locale"), | |
1000 | category_name); | |
1001 | setlocale_failed = true; | |
1002 | } | |
1003 | } | |
1004 | ||
1005 | /* Return a quoted version of the passed string, or NULL on error. */ | |
1006 | static char * | |
1007 | quote_string (const char *input) | |
1008 | { | |
1009 | char *buffer; | |
1010 | size_t length; | |
1011 | FILE *stream = open_memstream (&buffer, &length); | |
1012 | if (stream == NULL) | |
1013 | return NULL; | |
1014 | ||
1015 | while (true) | |
1016 | { | |
1017 | unsigned char ch = *input++; | |
1018 | if (ch == '\0') | |
1019 | break; | |
1020 | ||
1021 | /* Use C backslash escapes for those control characters for | |
1022 | which they are defined. */ | |
1023 | switch (ch) | |
1024 | { | |
1025 | case '\a': | |
1026 | putc_unlocked ('\\', stream); | |
1027 | putc_unlocked ('a', stream); | |
1028 | break; | |
1029 | case '\b': | |
1030 | putc_unlocked ('\\', stream); | |
1031 | putc_unlocked ('b', stream); | |
1032 | break; | |
1033 | case '\f': | |
1034 | putc_unlocked ('\\', stream); | |
1035 | putc_unlocked ('f', stream); | |
1036 | break; | |
1037 | case '\n': | |
1038 | putc_unlocked ('\\', stream); | |
1039 | putc_unlocked ('n', stream); | |
1040 | break; | |
1041 | case '\r': | |
1042 | putc_unlocked ('\\', stream); | |
1043 | putc_unlocked ('r', stream); | |
1044 | break; | |
1045 | case '\t': | |
1046 | putc_unlocked ('\\', stream); | |
1047 | putc_unlocked ('t', stream); | |
1048 | break; | |
1049 | case '\v': | |
1050 | putc_unlocked ('\\', stream); | |
1051 | putc_unlocked ('v', stream); | |
1052 | break; | |
1053 | case '\\': | |
1054 | case '\'': | |
1055 | case '\"': | |
1056 | putc_unlocked ('\\', stream); | |
1057 | putc_unlocked (ch, stream); | |
1058 | break; | |
1059 | default: | |
1060 | if (ch < ' ' || ch > '~') | |
1061 | /* Use octal sequences because they are fixed width, | |
1062 | unlike hexadecimal sequences. */ | |
1063 | fprintf (stream, "\\%03o", ch); | |
1064 | else | |
1065 | putc_unlocked (ch, stream); | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | if (ferror (stream)) | |
1070 | { | |
1071 | fclose (stream); | |
1072 | free (buffer); | |
1073 | return NULL; | |
1074 | } | |
1075 | if (fclose (stream) != 0) | |
1076 | { | |
1077 | free (buffer); | |
1078 | return NULL; | |
1079 | } | |
1080 | ||
1081 | return buffer; | |
1082 | } | |
1083 | ||
1084 | /* Print additional information if there was a setlocale error (during | |
1085 | try_setlocale). */ | |
1086 | static void | |
1087 | setlocale_diagnostics (void) | |
1088 | { | |
1089 | if (setlocale_failed) | |
1090 | { | |
1091 | const char *locpath = getenv ("LOCPATH"); | |
1092 | if (locpath != NULL) | |
1093 | { | |
1094 | char *quoted = quote_string (locpath); | |
1095 | if (quoted != NULL) | |
1096 | fprintf (stderr, | |
1097 | gettext ("\ | |
1098 | warning: The LOCPATH variable is set to \"%s\"\n"), | |
1099 | quoted); | |
1100 | else | |
1101 | fputs ("warning: The LOCPATH variable is set\n", stderr); | |
1102 | free (quoted); | |
1103 | } | |
1104 | } | |
1105 | } |