1 | /* Implementation of the locale program according to POSIX 9945-2. |
2 | Copyright (C) 1995-2019 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1995. |
5 | |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published |
8 | by the Free Software Foundation; version 2 of the License, or |
9 | (at your option) any later version. |
10 | |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | GNU General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifdef HAVE_CONFIG_H |
20 | # include <config.h> |
21 | #endif |
22 | |
23 | #include <argp.h> |
24 | #include <argz.h> |
25 | #include <dirent.h> |
26 | #include <errno.h> |
27 | #include <error.h> |
28 | #include <fcntl.h> |
29 | #include <langinfo.h> |
30 | #include <libintl.h> |
31 | #include <limits.h> |
32 | #include <locale.h> |
33 | #include <search.h> |
34 | #include <stdio.h> |
35 | #include <stdio_ext.h> |
36 | #include <stdlib.h> |
37 | #include <string.h> |
38 | #include <unistd.h> |
39 | #include <stdint.h> |
40 | #include <sys/mman.h> |
41 | #include <sys/stat.h> |
42 | |
43 | #include "record-status.h" |
44 | #include "localeinfo.h" |
45 | #include "charmap-dir.h" |
46 | #include "../locarchive.h" |
47 | #include <programs/xmalloc.h> |
48 | |
49 | #define ARCHIVE_NAME COMPLOCALEDIR "/locale-archive" |
50 | |
51 | /* If set print the name of the category. */ |
52 | static int show_category_name; |
53 | |
54 | /* If set print the name of the item. */ |
55 | static int show_keyword_name; |
56 | |
57 | /* Print names of all available locales. */ |
58 | static int do_all; |
59 | |
60 | /* Print names of all available character maps. */ |
61 | static int do_charmaps = 0; |
62 | |
63 | /* Name and version of program. */ |
64 | static void print_version (FILE *stream, struct argp_state *state); |
65 | void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; |
66 | |
67 | /* Definitions of arguments for argp functions. */ |
68 | static const struct argp_option options[] = |
69 | { |
70 | { NULL, 0, NULL, 0, N_("System information:" ) }, |
71 | { "all-locales" , 'a', NULL, OPTION_NO_USAGE, |
72 | N_("Write names of available locales" ) }, |
73 | { "charmaps" , 'm', NULL, OPTION_NO_USAGE, |
74 | N_("Write names of available charmaps" ) }, |
75 | { NULL, 0, NULL, 0, N_("Modify output format:" ) }, |
76 | { "category-name" , 'c', NULL, 0, N_("Write names of selected categories" ) }, |
77 | { "keyword-name" , 'k', NULL, 0, N_("Write names of selected keywords" ) }, |
78 | { "verbose" , 'v', NULL, 0, N_("Print more information" ) }, |
79 | { NULL, 0, NULL, 0, NULL } |
80 | }; |
81 | |
82 | /* Short description of program. */ |
83 | static const char doc[] = N_("Get locale-specific information." ); |
84 | |
85 | /* Strings for arguments in help texts. */ |
86 | static const char args_doc[] = N_("NAME\n[-a|-m]" ); |
87 | |
88 | /* Prototype for option handler. */ |
89 | static error_t parse_opt (int key, char *arg, struct argp_state *state); |
90 | |
91 | /* Function to print some extra text in the help message. */ |
92 | static char *more_help (int key, const char *text, void *input); |
93 | |
94 | /* Data structure to communicate with argp functions. */ |
95 | static struct argp argp = |
96 | { |
97 | options, parse_opt, args_doc, doc, NULL, more_help |
98 | }; |
99 | |
100 | |
101 | /* We don't have these constants defined because we don't use them. Give |
102 | default values. */ |
103 | #define CTYPE_MB_CUR_MIN 0 |
104 | #define CTYPE_MB_CUR_MAX 0 |
105 | #define CTYPE_HASH_SIZE 0 |
106 | #define CTYPE_HASH_LAYERS 0 |
107 | #define CTYPE_CLASS 0 |
108 | #define CTYPE_TOUPPER_EB 0 |
109 | #define CTYPE_TOLOWER_EB 0 |
110 | #define CTYPE_TOUPPER_EL 0 |
111 | #define CTYPE_TOLOWER_EL 0 |
112 | |
113 | /* Definition of the data structure which represents a category and its |
114 | items. */ |
115 | struct category |
116 | { |
117 | int cat_id; |
118 | const char *name; |
119 | size_t number; |
120 | struct cat_item |
121 | { |
122 | int item_id; |
123 | const char *name; |
124 | enum { std, opt } status; |
125 | enum value_type value_type; |
126 | int min; |
127 | int max; |
128 | } *item_desc; |
129 | }; |
130 | |
131 | /* Simple helper macro. */ |
132 | #define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0]))) |
133 | |
134 | /* For some tricky stuff. */ |
135 | #define NO_PAREN(Item, More...) Item, ## More |
136 | |
137 | /* We have all categories defined in `categories.def'. Now construct |
138 | the description and data structure used for all categories. */ |
139 | #define DEFINE_ELEMENT(Item, More...) { Item, ## More }, |
140 | #define DEFINE_CATEGORY(category, name, items, postload) \ |
141 | static struct cat_item category##_desc[] = \ |
142 | { \ |
143 | NO_PAREN items \ |
144 | }; |
145 | |
146 | #include "categories.def" |
147 | #undef DEFINE_CATEGORY |
148 | |
149 | static struct category category[] = |
150 | { |
151 | #define DEFINE_CATEGORY(category, name, items, postload) \ |
152 | [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \ |
153 | category##_desc }, |
154 | #include "categories.def" |
155 | #undef DEFINE_CATEGORY |
156 | }; |
157 | #define NCATEGORIES NELEMS (category) |
158 | |
159 | |
160 | /* Automatically set variable. */ |
161 | extern const char *__progname; |
162 | |
163 | /* helper function for extended name handling. */ |
164 | extern void locale_special (const char *name, int show_category_name, |
165 | int show_keyword_name); |
166 | |
167 | /* Prototypes for local functions. */ |
168 | static void print_LC_IDENTIFICATION (void *mapped, size_t size); |
169 | static void print_LC_CTYPE (void *mapped, size_t size); |
170 | static void write_locales (void); |
171 | static int nameentcmp (const void *a, const void *b); |
172 | static int write_archive_locales (void **all_datap, char *linebuf); |
173 | static void write_charmaps (void); |
174 | static void show_locale_vars (void); |
175 | static void show_info (const char *name); |
176 | static void try_setlocale (int category, const char *category_name); |
177 | static char *quote_string (const char *input); |
178 | static void setlocale_diagnostics (void); |
179 | |
180 | |
181 | int |
182 | main (int argc, char *argv[]) |
183 | { |
184 | int remaining; |
185 | |
186 | /* Set initial values for global variables. */ |
187 | show_category_name = 0; |
188 | show_keyword_name = 0; |
189 | |
190 | /* Set locale. Do not set LC_ALL because the other categories must |
191 | not be affected (according to POSIX.2). */ |
192 | try_setlocale (LC_CTYPE, "LC_CTYPE" ); |
193 | try_setlocale (LC_MESSAGES, "LC_MESSAGES" ); |
194 | |
195 | /* Initialize the message catalog. */ |
196 | textdomain (PACKAGE); |
197 | |
198 | /* Parse and process arguments. */ |
199 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
200 | |
201 | /* `-a' requests the names of all available locales. */ |
202 | if (do_all != 0) |
203 | { |
204 | setlocale_diagnostics (); |
205 | try_setlocale (LC_COLLATE, "LC_COLLATE" ); |
206 | write_locales (); |
207 | exit (EXIT_SUCCESS); |
208 | } |
209 | |
210 | /* `m' requests the names of all available charmaps. The names can be |
211 | used for the -f argument to localedef(1). */ |
212 | if (do_charmaps != 0) |
213 | { |
214 | setlocale_diagnostics (); |
215 | write_charmaps (); |
216 | exit (EXIT_SUCCESS); |
217 | } |
218 | |
219 | /* Specific information about the current locale are requested. |
220 | Change to this locale now. */ |
221 | try_setlocale (LC_ALL, "LC_ALL" ); |
222 | setlocale_diagnostics (); |
223 | |
224 | /* If no real argument is given we have to print the contents of the |
225 | current locale definition variables. These are LANG and the LC_*. */ |
226 | if (remaining == argc && show_keyword_name == 0 && show_category_name == 0) |
227 | { |
228 | show_locale_vars (); |
229 | exit (EXIT_SUCCESS); |
230 | } |
231 | |
232 | /* Process all given names. */ |
233 | while (remaining < argc) |
234 | show_info (argv[remaining++]); |
235 | |
236 | exit (EXIT_SUCCESS); |
237 | } |
238 | |
239 | |
240 | /* Handle program arguments. */ |
241 | static error_t |
242 | parse_opt (int key, char *arg, struct argp_state *state) |
243 | { |
244 | switch (key) |
245 | { |
246 | case 'a': |
247 | do_all = 1; |
248 | break; |
249 | case 'c': |
250 | show_category_name = 1; |
251 | break; |
252 | case 'm': |
253 | do_charmaps = 1; |
254 | break; |
255 | case 'k': |
256 | show_keyword_name = 1; |
257 | break; |
258 | case 'v': |
259 | verbose = 1; |
260 | break; |
261 | default: |
262 | return ARGP_ERR_UNKNOWN; |
263 | } |
264 | return 0; |
265 | } |
266 | |
267 | |
268 | static char * |
269 | more_help (int key, const char *text, void *input) |
270 | { |
271 | char *tp = NULL; |
272 | switch (key) |
273 | { |
274 | case ARGP_KEY_HELP_EXTRA: |
275 | /* We print some extra information. */ |
276 | if (asprintf (&tp, gettext ("\ |
277 | For bug reporting instructions, please see:\n\ |
278 | %s.\n" ), REPORT_BUGS_TO) < 0) |
279 | return NULL; |
280 | return tp; |
281 | default: |
282 | break; |
283 | } |
284 | return (char *) text; |
285 | } |
286 | |
287 | |
288 | /* Print the version information. */ |
289 | static void |
290 | print_version (FILE *stream, struct argp_state *state) |
291 | { |
292 | fprintf (stream, "locale %s%s\n" , PKGVERSION, VERSION); |
293 | fprintf (stream, gettext ("\ |
294 | Copyright (C) %s Free Software Foundation, Inc.\n\ |
295 | This is free software; see the source for copying conditions. There is NO\n\ |
296 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ |
297 | " ), "2019" ); |
298 | fprintf (stream, gettext ("Written by %s.\n" ), "Ulrich Drepper" ); |
299 | } |
300 | |
301 | |
302 | /* Simple action function which prints arguments as strings. */ |
303 | static void |
304 | print_names (const void *nodep, VISIT value, int level) |
305 | { |
306 | if (value == postorder || value == leaf) |
307 | puts (*(char **) nodep); |
308 | } |
309 | |
310 | |
311 | static int |
312 | select_dirs (const struct dirent *dirent) |
313 | { |
314 | int result = 0; |
315 | |
316 | if (strcmp (dirent->d_name, "." ) != 0 && strcmp (dirent->d_name, ".." ) != 0) |
317 | { |
318 | mode_t mode = 0; |
319 | |
320 | if (dirent->d_type != DT_UNKNOWN && dirent->d_type != DT_LNK) |
321 | mode = DTTOIF (dirent->d_type); |
322 | else |
323 | { |
324 | struct stat64 st; |
325 | char buf[sizeof (COMPLOCALEDIR) |
326 | + strlen (dirent->d_name) + 1]; |
327 | |
328 | stpcpy (stpcpy (stpcpy (buf, COMPLOCALEDIR), "/" ), |
329 | dirent->d_name); |
330 | |
331 | if (stat64 (buf, &st) == 0) |
332 | mode = st.st_mode; |
333 | } |
334 | |
335 | result = S_ISDIR (mode); |
336 | } |
337 | |
338 | return result; |
339 | } |
340 | |
341 | |
342 | static void |
343 | print_LC_IDENTIFICATION (void *mapped, size_t size) |
344 | { |
345 | /* Read the information from the file. */ |
346 | struct |
347 | { |
348 | unsigned int magic; |
349 | unsigned int nstrings; |
350 | unsigned int strindex[0]; |
351 | } *filedata = mapped; |
352 | |
353 | if (filedata->magic == LIMAGIC (LC_IDENTIFICATION) |
354 | && (sizeof *filedata |
355 | + (filedata->nstrings |
356 | * sizeof (unsigned int)) |
357 | <= size)) |
358 | { |
359 | const char *str; |
360 | |
361 | #define HANDLE(idx, name) \ |
362 | str = ((char *) mapped \ |
363 | + filedata->strindex[_NL_ITEM_INDEX (_NL_IDENTIFICATION_##idx)]); \ |
364 | if (*str != '\0') \ |
365 | printf ("%9s | %s\n", name, str) |
366 | HANDLE (TITLE, "title" ); |
367 | HANDLE (SOURCE, "source" ); |
368 | HANDLE (ADDRESS, "address" ); |
369 | HANDLE (CONTACT, "contact" ); |
370 | HANDLE (EMAIL, "email" ); |
371 | HANDLE (TEL, "telephone" ); |
372 | HANDLE (FAX, "fax" ); |
373 | HANDLE (LANGUAGE, "language" ); |
374 | HANDLE (TERRITORY, "territory" ); |
375 | HANDLE (AUDIENCE, "audience" ); |
376 | HANDLE (APPLICATION, "application" ); |
377 | HANDLE (ABBREVIATION, "abbreviation" ); |
378 | HANDLE (REVISION, "revision" ); |
379 | HANDLE (DATE, "date" ); |
380 | } |
381 | } |
382 | |
383 | |
384 | static void |
385 | print_LC_CTYPE (void *mapped, size_t size) |
386 | { |
387 | struct |
388 | { |
389 | unsigned int magic; |
390 | unsigned int nstrings; |
391 | unsigned int strindex[0]; |
392 | } *filedata = mapped; |
393 | |
394 | if (filedata->magic == LIMAGIC (LC_CTYPE) |
395 | && (sizeof *filedata |
396 | + (filedata->nstrings |
397 | * sizeof (unsigned int)) |
398 | <= size)) |
399 | { |
400 | const char *str; |
401 | |
402 | str = ((char *) mapped |
403 | + filedata->strindex[_NL_ITEM_INDEX (_NL_CTYPE_CODESET_NAME)]); |
404 | if (*str != '\0') |
405 | printf (" codeset | %s\n" , str); |
406 | } |
407 | } |
408 | |
409 | |
410 | /* Write the names of all available locales to stdout. We have some |
411 | sources of the information: the contents of the locale directory |
412 | and the locale.alias file. To avoid duplicates and print the |
413 | result is a reasonable order we put all entries is a search tree |
414 | and print them afterwards. */ |
415 | static void |
416 | write_locales (void) |
417 | { |
418 | char linebuf[80]; |
419 | void *all_data = NULL; |
420 | struct dirent **dirents; |
421 | int ndirents; |
422 | int cnt; |
423 | char *alias_path; |
424 | size_t alias_path_len; |
425 | char *entry; |
426 | int first_locale = 1; |
427 | |
428 | #define PUT(name) tsearch (name, &all_data, \ |
429 | (int (*) (const void *, const void *)) strcoll) |
430 | #define GET(name) tfind (name, &all_data, \ |
431 | (int (*) (const void *, const void *)) strcoll) |
432 | |
433 | /* `POSIX' locale is always available (POSIX.2 4.34.3). */ |
434 | PUT ("POSIX" ); |
435 | /* And so is the "C" locale. */ |
436 | PUT ("C" ); |
437 | |
438 | memset (linebuf, '-', sizeof (linebuf) - 1); |
439 | linebuf[sizeof (linebuf) - 1] = '\0'; |
440 | |
441 | /* First scan the locale archive. */ |
442 | if (write_archive_locales (&all_data, linebuf)) |
443 | first_locale = 0; |
444 | |
445 | /* Now we can look for all files in the directory. */ |
446 | ndirents = scandir (COMPLOCALEDIR, &dirents, select_dirs, |
447 | alphasort); |
448 | for (cnt = 0; cnt < ndirents; ++cnt) |
449 | { |
450 | /* Test whether at least the LC_CTYPE data is there. Some |
451 | directories only contain translations. */ |
452 | char buf[sizeof (COMPLOCALEDIR) |
453 | + strlen (dirents[cnt]->d_name) |
454 | + sizeof "/LC_IDENTIFICATION" ]; |
455 | char *enddir; |
456 | struct stat64 st; |
457 | |
458 | stpcpy (enddir = stpcpy (stpcpy (stpcpy (buf, |
459 | COMPLOCALEDIR), |
460 | "/" ), |
461 | dirents[cnt]->d_name), |
462 | "/LC_IDENTIFICATION" ); |
463 | |
464 | if (stat64 (buf, &st) == 0 && S_ISREG (st.st_mode)) |
465 | { |
466 | if (verbose && GET (dirents[cnt]->d_name) == NULL) |
467 | { |
468 | /* Provide some nice output of all kinds of |
469 | information. */ |
470 | int fd; |
471 | |
472 | if (! first_locale) |
473 | putchar_unlocked ('\n'); |
474 | first_locale = 0; |
475 | |
476 | printf ("locale: %-15.15s directory: %.*s\n%s\n" , |
477 | dirents[cnt]->d_name, (int) (enddir - buf), buf, |
478 | linebuf); |
479 | |
480 | fd = open64 (buf, O_RDONLY); |
481 | if (fd != -1) |
482 | { |
483 | void *mapped = mmap64 (NULL, st.st_size, PROT_READ, |
484 | MAP_SHARED, fd, 0); |
485 | if (mapped != MAP_FAILED) |
486 | { |
487 | print_LC_IDENTIFICATION (mapped, st.st_size); |
488 | |
489 | munmap (mapped, st.st_size); |
490 | } |
491 | |
492 | close (fd); |
493 | |
494 | /* Now try to get the charset information. */ |
495 | strcpy (enddir, "/LC_CTYPE" ); |
496 | fd = open64 (buf, O_RDONLY); |
497 | if (fd != -1 && fstat64 (fd, &st) >= 0 |
498 | && ((mapped = mmap64 (NULL, st.st_size, PROT_READ, |
499 | MAP_SHARED, fd, 0)) |
500 | != MAP_FAILED)) |
501 | { |
502 | print_LC_CTYPE (mapped, st.st_size); |
503 | |
504 | munmap (mapped, st.st_size); |
505 | } |
506 | |
507 | if (fd != -1) |
508 | close (fd); |
509 | } |
510 | } |
511 | |
512 | /* If the verbose format is not selected we simply |
513 | collect the names. */ |
514 | PUT (xstrdup (dirents[cnt]->d_name)); |
515 | } |
516 | } |
517 | if (ndirents > 0) |
518 | free (dirents); |
519 | |
520 | /* Now read the locale.alias files. */ |
521 | if (argz_create_sep (LOCALE_ALIAS_PATH, ':', &alias_path, &alias_path_len)) |
522 | error (1, errno, gettext ("while preparing output" )); |
523 | |
524 | entry = NULL; |
525 | while ((entry = argz_next (alias_path, alias_path_len, entry))) |
526 | { |
527 | static const char aliasfile[] = "/locale.alias" ; |
528 | FILE *fp; |
529 | char full_name[strlen (entry) + sizeof aliasfile]; |
530 | |
531 | stpcpy (stpcpy (full_name, entry), aliasfile); |
532 | fp = fopen (full_name, "rm" ); |
533 | if (fp == NULL) |
534 | /* Ignore non-existing files. */ |
535 | continue; |
536 | |
537 | /* No threads present. */ |
538 | __fsetlocking (fp, FSETLOCKING_BYCALLER); |
539 | |
540 | while (! feof_unlocked (fp)) |
541 | { |
542 | /* It is a reasonable approach to use a fix buffer here |
543 | because |
544 | a) we are only interested in the first two fields |
545 | b) these fields must be usable as file names and so must |
546 | not be that long */ |
547 | char buf[BUFSIZ]; |
548 | char *alias; |
549 | char *value; |
550 | char *cp; |
551 | |
552 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
553 | /* EOF reached. */ |
554 | break; |
555 | |
556 | cp = buf; |
557 | /* Ignore leading white space. */ |
558 | while (isspace (cp[0]) && cp[0] != '\n') |
559 | ++cp; |
560 | |
561 | /* A leading '#' signals a comment line. */ |
562 | if (cp[0] != '\0' && cp[0] != '#' && cp[0] != '\n') |
563 | { |
564 | alias = cp++; |
565 | while (cp[0] != '\0' && !isspace (cp[0])) |
566 | ++cp; |
567 | /* Terminate alias name. */ |
568 | if (cp[0] != '\0') |
569 | *cp++ = '\0'; |
570 | |
571 | /* Now look for the beginning of the value. */ |
572 | while (isspace (cp[0])) |
573 | ++cp; |
574 | |
575 | if (cp[0] != '\0') |
576 | { |
577 | value = cp++; |
578 | while (cp[0] != '\0' && !isspace (cp[0])) |
579 | ++cp; |
580 | /* Terminate value. */ |
581 | if (cp[0] == '\n') |
582 | { |
583 | /* This has to be done to make the following |
584 | test for the end of line possible. We are |
585 | looking for the terminating '\n' which do not |
586 | overwrite here. */ |
587 | *cp++ = '\0'; |
588 | *cp = '\n'; |
589 | } |
590 | else if (cp[0] != '\0') |
591 | *cp++ = '\0'; |
592 | |
593 | /* Add the alias. */ |
594 | if (! verbose && GET (value) != NULL) |
595 | PUT (xstrdup (alias)); |
596 | } |
597 | } |
598 | |
599 | /* Possibly not the whole line fits into the buffer. |
600 | Ignore the rest of the line. */ |
601 | while (strchr (cp, '\n') == NULL) |
602 | { |
603 | cp = buf; |
604 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
605 | /* Make sure the inner loop will be left. The outer |
606 | loop will exit at the `feof' test. */ |
607 | *cp = '\n'; |
608 | } |
609 | } |
610 | |
611 | fclose (fp); |
612 | } |
613 | |
614 | if (! verbose) |
615 | { |
616 | twalk (all_data, print_names); |
617 | } |
618 | } |
619 | |
620 | |
621 | struct nameent |
622 | { |
623 | char *name; |
624 | uint32_t locrec_offset; |
625 | }; |
626 | |
627 | |
628 | static int |
629 | nameentcmp (const void *a, const void *b) |
630 | { |
631 | return strcoll (((const struct nameent *) a)->name, |
632 | ((const struct nameent *) b)->name); |
633 | } |
634 | |
635 | |
636 | static int |
637 | write_archive_locales (void **all_datap, char *linebuf) |
638 | { |
639 | struct stat64 st; |
640 | void *all_data = *all_datap; |
641 | size_t len = 0; |
642 | struct locarhead *head; |
643 | struct namehashent *namehashtab; |
644 | char *addr = MAP_FAILED; |
645 | int fd, ret = 0; |
646 | uint32_t cnt; |
647 | |
648 | fd = open64 (ARCHIVE_NAME, O_RDONLY); |
649 | if (fd < 0) |
650 | return 0; |
651 | |
652 | if (fstat64 (fd, &st) < 0 || st.st_size < sizeof (*head)) |
653 | goto error_out; |
654 | |
655 | len = st.st_size; |
656 | addr = mmap64 (NULL, len, PROT_READ, MAP_SHARED, fd, 0); |
657 | if (addr == MAP_FAILED) |
658 | goto error_out; |
659 | |
660 | head = (struct locarhead *) addr; |
661 | if (head->namehash_offset + head->namehash_size > len |
662 | || head->string_offset + head->string_size > len |
663 | || head->locrectab_offset + head->locrectab_size > len |
664 | || head->sumhash_offset + head->sumhash_size > len) |
665 | goto error_out; |
666 | |
667 | namehashtab = (struct namehashent *) (addr + head->namehash_offset); |
668 | if (! verbose) |
669 | { |
670 | for (cnt = 0; cnt < head->namehash_size; ++cnt) |
671 | if (namehashtab[cnt].locrec_offset != 0) |
672 | { |
673 | PUT (xstrdup (addr + namehashtab[cnt].name_offset)); |
674 | ++ret; |
675 | } |
676 | } |
677 | else |
678 | { |
679 | struct nameent *names; |
680 | uint32_t used; |
681 | |
682 | names = (struct nameent *) xmalloc (head->namehash_used |
683 | * sizeof (struct nameent)); |
684 | for (cnt = used = 0; cnt < head->namehash_size; ++cnt) |
685 | if (namehashtab[cnt].locrec_offset != 0) |
686 | { |
687 | names[used].name = addr + namehashtab[cnt].name_offset; |
688 | names[used++].locrec_offset = namehashtab[cnt].locrec_offset; |
689 | } |
690 | |
691 | /* Sort the names. */ |
692 | qsort (names, used, sizeof (struct nameent), nameentcmp); |
693 | |
694 | for (cnt = 0; cnt < used; ++cnt) |
695 | { |
696 | struct locrecent *locrec; |
697 | |
698 | PUT (xstrdup (names[cnt].name)); |
699 | |
700 | if (cnt) |
701 | putchar_unlocked ('\n'); |
702 | |
703 | printf ("locale: %-15.15s archive: " ARCHIVE_NAME "\n%s\n" , |
704 | names[cnt].name, linebuf); |
705 | |
706 | locrec = (struct locrecent *) (addr + names[cnt].locrec_offset); |
707 | |
708 | print_LC_IDENTIFICATION (addr |
709 | + locrec->record[LC_IDENTIFICATION].offset, |
710 | locrec->record[LC_IDENTIFICATION].len); |
711 | |
712 | print_LC_CTYPE (addr + locrec->record[LC_CTYPE].offset, |
713 | locrec->record[LC_CTYPE].len); |
714 | } |
715 | |
716 | ret = used; |
717 | } |
718 | |
719 | error_out: |
720 | if (addr != MAP_FAILED) |
721 | munmap (addr, len); |
722 | close (fd); |
723 | *all_datap = all_data; |
724 | return ret; |
725 | } |
726 | |
727 | |
728 | /* Write the names of all available character maps to stdout. */ |
729 | static void |
730 | write_charmaps (void) |
731 | { |
732 | void *all_data = NULL; |
733 | CHARMAP_DIR *dir; |
734 | const char *dirent; |
735 | |
736 | /* Look for all files in the charmap directory. */ |
737 | dir = charmap_opendir (CHARMAP_PATH); |
738 | if (dir == NULL) |
739 | return; |
740 | |
741 | while ((dirent = charmap_readdir (dir)) != NULL) |
742 | { |
743 | char **aliases; |
744 | char **p; |
745 | |
746 | PUT (xstrdup (dirent)); |
747 | |
748 | aliases = charmap_aliases (CHARMAP_PATH, dirent); |
749 | |
750 | #if 0 |
751 | /* Add the code_set_name and the aliases. */ |
752 | for (p = aliases; *p; p++) |
753 | PUT (xstrdup (*p)); |
754 | #else |
755 | /* Add the code_set_name only. Most aliases are obsolete. */ |
756 | p = aliases; |
757 | if (*p) |
758 | PUT (xstrdup (*p)); |
759 | #endif |
760 | |
761 | charmap_free_aliases (aliases); |
762 | } |
763 | |
764 | charmap_closedir (dir); |
765 | |
766 | twalk (all_data, print_names); |
767 | } |
768 | |
769 | /* Print a properly quoted assignment of NAME with VAL, using double |
770 | quotes iff DQUOTE is true. */ |
771 | static void |
772 | print_assignment (const char *name, const char *val, bool dquote) |
773 | { |
774 | printf ("%s=" , name); |
775 | if (dquote) |
776 | putchar ('"'); |
777 | while (*val != '\0') |
778 | { |
779 | size_t segment |
780 | = strcspn (val, dquote ? "$`\"\\" : "~|&;<>()$`\\\"' \t\n" ); |
781 | printf ("%.*s" , (int) segment, val); |
782 | val += segment; |
783 | if (*val == '\0') |
784 | break; |
785 | putchar ('\\'); |
786 | putchar (*val++); |
787 | } |
788 | if (dquote) |
789 | putchar ('"'); |
790 | putchar ('\n'); |
791 | } |
792 | |
793 | /* We have to show the contents of the environments determining the |
794 | locale. */ |
795 | static void |
796 | show_locale_vars (void) |
797 | { |
798 | const char *lcall = getenv ("LC_ALL" ) ?: "" ; |
799 | const char *lang = getenv ("LANG" ) ?: "" ; |
800 | |
801 | /* LANG has to be the first value. */ |
802 | print_assignment ("LANG" , lang, false); |
803 | |
804 | /* Now all categories in an unspecified order. */ |
805 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
806 | if (cat_no != LC_ALL) |
807 | { |
808 | const char *name = category[cat_no].name; |
809 | const char *val = getenv (name); |
810 | |
811 | if (lcall[0] != '\0' || val == NULL) |
812 | print_assignment (name, |
813 | lcall[0] != '\0' ? lcall |
814 | : lang[0] != '\0' ? lang |
815 | : "POSIX" , |
816 | true); |
817 | else |
818 | print_assignment (name, val, false); |
819 | } |
820 | |
821 | /* The last is the LC_ALL value. */ |
822 | print_assignment ("LC_ALL" , lcall, false); |
823 | } |
824 | |
825 | |
826 | /* Subroutine of show_info, below. */ |
827 | static void |
828 | print_item (struct cat_item *item) |
829 | { |
830 | switch (item->value_type) |
831 | { |
832 | case string: |
833 | if (show_keyword_name) |
834 | printf ("%s=\"" , item->name); |
835 | fputs (nl_langinfo (item->item_id) ? : "" , stdout); |
836 | if (show_keyword_name) |
837 | putchar ('"'); |
838 | putchar ('\n'); |
839 | break; |
840 | case stringarray: |
841 | { |
842 | const char *val; |
843 | int cnt; |
844 | |
845 | if (show_keyword_name) |
846 | printf ("%s=\"" , item->name); |
847 | |
848 | for (cnt = 0; cnt < item->max - 1; ++cnt) |
849 | { |
850 | val = nl_langinfo (item->item_id + cnt); |
851 | if (val != NULL) |
852 | fputs (val, stdout); |
853 | putchar (';'); |
854 | } |
855 | |
856 | val = nl_langinfo (item->item_id + cnt); |
857 | if (val != NULL) |
858 | fputs (val, stdout); |
859 | |
860 | if (show_keyword_name) |
861 | putchar ('"'); |
862 | putchar ('\n'); |
863 | } |
864 | break; |
865 | case stringlist: |
866 | { |
867 | int first = 1; |
868 | const char *val = nl_langinfo (item->item_id) ? : "" ; |
869 | |
870 | if (show_keyword_name) |
871 | printf ("%s=" , item->name); |
872 | |
873 | for (int cnt = 0; cnt < item->max && *val != '\0'; ++cnt) |
874 | { |
875 | printf ("%s%s%s%s" , first ? "" : ";" , |
876 | show_keyword_name ? "\"" : "" , val, |
877 | show_keyword_name ? "\"" : "" ); |
878 | val = strchr (val, '\0') + 1; |
879 | first = 0; |
880 | } |
881 | putchar ('\n'); |
882 | } |
883 | break; |
884 | case byte: |
885 | { |
886 | const char *val = nl_langinfo (item->item_id); |
887 | |
888 | if (show_keyword_name) |
889 | printf ("%s=" , item->name); |
890 | |
891 | if (val != NULL) |
892 | printf ("%d" , *val == '\377' ? -1 : *val); |
893 | putchar ('\n'); |
894 | } |
895 | break; |
896 | case bytearray: |
897 | { |
898 | const char *val = nl_langinfo (item->item_id); |
899 | int cnt = val ? strlen (val) : 0; |
900 | |
901 | if (show_keyword_name) |
902 | printf ("%s=" , item->name); |
903 | |
904 | while (cnt > 1) |
905 | { |
906 | printf ("%d;" , *val == '\177' ? -1 : *val); |
907 | --cnt; |
908 | ++val; |
909 | } |
910 | |
911 | printf ("%d\n" , cnt == 0 || *val == '\177' ? -1 : *val); |
912 | } |
913 | break; |
914 | case word: |
915 | { |
916 | union { unsigned int word; char *string; } val; |
917 | val.string = nl_langinfo (item->item_id); |
918 | if (show_keyword_name) |
919 | printf ("%s=" , item->name); |
920 | |
921 | printf ("%d\n" , val.word); |
922 | } |
923 | break; |
924 | case wordarray: |
925 | { |
926 | int first = 1; |
927 | union { unsigned int *wordarray; char *string; } val; |
928 | |
929 | val.string = nl_langinfo (item->item_id); |
930 | if (show_keyword_name) |
931 | printf ("%s=" , item->name); |
932 | |
933 | for (int cnt = 0; cnt < item->max; ++cnt) |
934 | { |
935 | printf ("%s%d" , first ? "" : ";" , val.wordarray[cnt]); |
936 | first = 0; |
937 | } |
938 | putchar ('\n'); |
939 | } |
940 | break; |
941 | case wstring: |
942 | case wstringarray: |
943 | case wstringlist: |
944 | /* We don't print wide character information since the same |
945 | information is available in a multibyte string. */ |
946 | default: |
947 | break; |
948 | } |
949 | } |
950 | |
951 | /* Show the information request for NAME. */ |
952 | static void |
953 | show_info (const char *name) |
954 | { |
955 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
956 | if (cat_no != LC_ALL) |
957 | { |
958 | if (strcmp (name, category[cat_no].name) == 0) |
959 | /* Print the whole category. */ |
960 | { |
961 | if (show_category_name != 0) |
962 | puts (category[cat_no].name); |
963 | |
964 | for (size_t item_no = 0; |
965 | item_no < category[cat_no].number; |
966 | ++item_no) |
967 | print_item (&category[cat_no].item_desc[item_no]); |
968 | |
969 | return; |
970 | } |
971 | |
972 | for (size_t item_no = 0; item_no < category[cat_no].number; ++item_no) |
973 | if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0) |
974 | { |
975 | if (show_category_name != 0) |
976 | puts (category[cat_no].name); |
977 | |
978 | print_item (&category[cat_no].item_desc[item_no]); |
979 | return; |
980 | } |
981 | } |
982 | |
983 | /* The name is not a standard one. |
984 | For testing and perhaps advanced use allow some more symbols. */ |
985 | locale_special (name, show_category_name, show_keyword_name); |
986 | } |
987 | |
988 | /* Set to true by try_setlocale if setlocale fails. Used by |
989 | setlocale_diagnostics. */ |
990 | static bool setlocale_failed; |
991 | |
992 | /* Call setlocale, with non-fatal error reporting. */ |
993 | static void |
994 | try_setlocale (int category, const char *category_name) |
995 | { |
996 | if (setlocale (category, "" ) == NULL) |
997 | { |
998 | error (0, errno, gettext ("Cannot set %s to default locale" ), |
999 | category_name); |
1000 | setlocale_failed = true; |
1001 | } |
1002 | } |
1003 | |
1004 | /* Return a quoted version of the passed string, or NULL on error. */ |
1005 | static char * |
1006 | quote_string (const char *input) |
1007 | { |
1008 | char *buffer; |
1009 | size_t length; |
1010 | FILE *stream = open_memstream (&buffer, &length); |
1011 | if (stream == NULL) |
1012 | return NULL; |
1013 | |
1014 | while (true) |
1015 | { |
1016 | unsigned char ch = *input++; |
1017 | if (ch == '\0') |
1018 | break; |
1019 | |
1020 | /* Use C backslash escapes for those control characters for |
1021 | which they are defined. */ |
1022 | switch (ch) |
1023 | { |
1024 | case '\a': |
1025 | putc_unlocked ('\\', stream); |
1026 | putc_unlocked ('a', stream); |
1027 | break; |
1028 | case '\b': |
1029 | putc_unlocked ('\\', stream); |
1030 | putc_unlocked ('b', stream); |
1031 | break; |
1032 | case '\f': |
1033 | putc_unlocked ('\\', stream); |
1034 | putc_unlocked ('f', stream); |
1035 | break; |
1036 | case '\n': |
1037 | putc_unlocked ('\\', stream); |
1038 | putc_unlocked ('n', stream); |
1039 | break; |
1040 | case '\r': |
1041 | putc_unlocked ('\\', stream); |
1042 | putc_unlocked ('r', stream); |
1043 | break; |
1044 | case '\t': |
1045 | putc_unlocked ('\\', stream); |
1046 | putc_unlocked ('t', stream); |
1047 | break; |
1048 | case '\v': |
1049 | putc_unlocked ('\\', stream); |
1050 | putc_unlocked ('v', stream); |
1051 | break; |
1052 | case '\\': |
1053 | case '\'': |
1054 | case '\"': |
1055 | putc_unlocked ('\\', stream); |
1056 | putc_unlocked (ch, stream); |
1057 | break; |
1058 | default: |
1059 | if (ch < ' ' || ch > '~') |
1060 | /* Use octal sequences because they are fixed width, |
1061 | unlike hexadecimal sequences. */ |
1062 | fprintf (stream, "\\%03o" , ch); |
1063 | else |
1064 | putc_unlocked (ch, stream); |
1065 | } |
1066 | } |
1067 | |
1068 | if (ferror (stream)) |
1069 | { |
1070 | fclose (stream); |
1071 | free (buffer); |
1072 | return NULL; |
1073 | } |
1074 | if (fclose (stream) != 0) |
1075 | { |
1076 | free (buffer); |
1077 | return NULL; |
1078 | } |
1079 | |
1080 | return buffer; |
1081 | } |
1082 | |
1083 | /* Print additional information if there was a setlocale error (during |
1084 | try_setlocale). */ |
1085 | static void |
1086 | setlocale_diagnostics (void) |
1087 | { |
1088 | if (setlocale_failed) |
1089 | { |
1090 | const char *locpath = getenv ("LOCPATH" ); |
1091 | if (locpath != NULL) |
1092 | { |
1093 | char *quoted = quote_string (locpath); |
1094 | if (quoted != NULL) |
1095 | fprintf (stderr, |
1096 | gettext ("\ |
1097 | warning: The LOCPATH variable is set to \"%s\"\n" ), |
1098 | quoted); |
1099 | else |
1100 | fputs ("warning: The LOCPATH variable is set\n" , stderr); |
1101 | free (quoted); |
1102 | } |
1103 | } |
1104 | } |
1105 | |