1 | /* Implementation of the locale program according to POSIX 9945-2. |
2 | Copyright (C) 1995-2017 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 "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 | /* Nonzero if verbose output is wanted. */ |
63 | static int verbose; |
64 | |
65 | /* Name and version of program. */ |
66 | static void print_version (FILE *stream, struct argp_state *state); |
67 | void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; |
68 | |
69 | /* Definitions of arguments for argp functions. */ |
70 | static const struct argp_option options[] = |
71 | { |
72 | { NULL, 0, NULL, 0, N_("System information:" ) }, |
73 | { "all-locales" , 'a', NULL, OPTION_NO_USAGE, |
74 | N_("Write names of available locales" ) }, |
75 | { "charmaps" , 'm', NULL, OPTION_NO_USAGE, |
76 | N_("Write names of available charmaps" ) }, |
77 | { NULL, 0, NULL, 0, N_("Modify output format:" ) }, |
78 | { "category-name" , 'c', NULL, 0, N_("Write names of selected categories" ) }, |
79 | { "keyword-name" , 'k', NULL, 0, N_("Write names of selected keywords" ) }, |
80 | { "verbose" , 'v', NULL, 0, N_("Print more information" ) }, |
81 | { NULL, 0, NULL, 0, NULL } |
82 | }; |
83 | |
84 | /* Short description of program. */ |
85 | static const char doc[] = N_("Get locale-specific information." ); |
86 | |
87 | /* Strings for arguments in help texts. */ |
88 | static const char args_doc[] = N_("NAME\n[-a|-m]" ); |
89 | |
90 | /* Prototype for option handler. */ |
91 | static error_t parse_opt (int key, char *arg, struct argp_state *state); |
92 | |
93 | /* Function to print some extra text in the help message. */ |
94 | static char *more_help (int key, const char *text, void *input); |
95 | |
96 | /* Data structure to communicate with argp functions. */ |
97 | static struct argp argp = |
98 | { |
99 | options, parse_opt, args_doc, doc, NULL, more_help |
100 | }; |
101 | |
102 | |
103 | /* We don't have these constants defined because we don't use them. Give |
104 | default values. */ |
105 | #define CTYPE_MB_CUR_MIN 0 |
106 | #define CTYPE_MB_CUR_MAX 0 |
107 | #define CTYPE_HASH_SIZE 0 |
108 | #define CTYPE_HASH_LAYERS 0 |
109 | #define CTYPE_CLASS 0 |
110 | #define CTYPE_TOUPPER_EB 0 |
111 | #define CTYPE_TOLOWER_EB 0 |
112 | #define CTYPE_TOUPPER_EL 0 |
113 | #define CTYPE_TOLOWER_EL 0 |
114 | |
115 | /* Definition of the data structure which represents a category and its |
116 | items. */ |
117 | struct category |
118 | { |
119 | int cat_id; |
120 | const char *name; |
121 | size_t number; |
122 | struct cat_item |
123 | { |
124 | int item_id; |
125 | const char *name; |
126 | enum { std, opt } status; |
127 | enum value_type value_type; |
128 | int min; |
129 | int max; |
130 | } *item_desc; |
131 | }; |
132 | |
133 | /* Simple helper macro. */ |
134 | #define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0]))) |
135 | |
136 | /* For some tricky stuff. */ |
137 | #define NO_PAREN(Item, More...) Item, ## More |
138 | |
139 | /* We have all categories defined in `categories.def'. Now construct |
140 | the description and data structure used for all categories. */ |
141 | #define DEFINE_ELEMENT(Item, More...) { Item, ## More }, |
142 | #define DEFINE_CATEGORY(category, name, items, postload) \ |
143 | static struct cat_item category##_desc[] = \ |
144 | { \ |
145 | NO_PAREN items \ |
146 | }; |
147 | |
148 | #include "categories.def" |
149 | #undef DEFINE_CATEGORY |
150 | |
151 | static struct category category[] = |
152 | { |
153 | #define DEFINE_CATEGORY(category, name, items, postload) \ |
154 | [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \ |
155 | category##_desc }, |
156 | #include "categories.def" |
157 | #undef DEFINE_CATEGORY |
158 | }; |
159 | #define NCATEGORIES NELEMS (category) |
160 | |
161 | |
162 | /* Automatically set variable. */ |
163 | extern const char *__progname; |
164 | |
165 | /* helper function for extended name handling. */ |
166 | extern void locale_special (const char *name, int show_category_name, |
167 | int show_keyword_name); |
168 | |
169 | /* Prototypes for local functions. */ |
170 | static void print_LC_IDENTIFICATION (void *mapped, size_t size); |
171 | static void print_LC_CTYPE (void *mapped, size_t size); |
172 | static void write_locales (void); |
173 | static int nameentcmp (const void *a, const void *b); |
174 | static int write_archive_locales (void **all_datap, char *linebuf); |
175 | static void write_charmaps (void); |
176 | static void show_locale_vars (void); |
177 | static void show_info (const char *name); |
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 | if (setlocale (LC_CTYPE, "" ) == NULL) |
192 | error (0, errno, gettext ("Cannot set LC_CTYPE to default locale" )); |
193 | if (setlocale (LC_MESSAGES, "" ) == NULL) |
194 | error (0, errno, gettext ("Cannot set LC_MESSAGES to default locale" )); |
195 | |
196 | /* Initialize the message catalog. */ |
197 | textdomain (PACKAGE); |
198 | |
199 | /* Parse and process arguments. */ |
200 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
201 | |
202 | /* `-a' requests the names of all available locales. */ |
203 | if (do_all != 0) |
204 | { |
205 | if (setlocale (LC_COLLATE, "" ) == NULL) |
206 | error (0, errno, |
207 | gettext ("Cannot set LC_COLLATE to default locale" )); |
208 | write_locales (); |
209 | exit (EXIT_SUCCESS); |
210 | } |
211 | |
212 | /* `m' requests the names of all available charmaps. The names can be |
213 | used for the -f argument to localedef(1). */ |
214 | if (do_charmaps != 0) |
215 | { |
216 | write_charmaps (); |
217 | exit (EXIT_SUCCESS); |
218 | } |
219 | |
220 | /* Specific information about the current locale are requested. |
221 | Change to this locale now. */ |
222 | if (setlocale (LC_ALL, "" ) == NULL) |
223 | error (0, errno, gettext ("Cannot set LC_ALL to default locale" )); |
224 | |
225 | /* If no real argument is given we have to print the contents of the |
226 | current locale definition variables. These are LANG and the LC_*. */ |
227 | if (remaining == argc && show_keyword_name == 0 && show_category_name == 0) |
228 | { |
229 | show_locale_vars (); |
230 | exit (EXIT_SUCCESS); |
231 | } |
232 | |
233 | /* Process all given names. */ |
234 | while (remaining < argc) |
235 | show_info (argv[remaining++]); |
236 | |
237 | exit (EXIT_SUCCESS); |
238 | } |
239 | |
240 | |
241 | /* Handle program arguments. */ |
242 | static error_t |
243 | parse_opt (int key, char *arg, struct argp_state *state) |
244 | { |
245 | switch (key) |
246 | { |
247 | case 'a': |
248 | do_all = 1; |
249 | break; |
250 | case 'c': |
251 | show_category_name = 1; |
252 | break; |
253 | case 'm': |
254 | do_charmaps = 1; |
255 | break; |
256 | case 'k': |
257 | show_keyword_name = 1; |
258 | break; |
259 | case 'v': |
260 | verbose = 1; |
261 | break; |
262 | default: |
263 | return ARGP_ERR_UNKNOWN; |
264 | } |
265 | return 0; |
266 | } |
267 | |
268 | |
269 | static char * |
270 | more_help (int key, const char *text, void *input) |
271 | { |
272 | char *tp = NULL; |
273 | switch (key) |
274 | { |
275 | case ARGP_KEY_HELP_EXTRA: |
276 | /* We print some extra information. */ |
277 | if (asprintf (&tp, gettext ("\ |
278 | For bug reporting instructions, please see:\n\ |
279 | %s.\n" ), REPORT_BUGS_TO) < 0) |
280 | return NULL; |
281 | return tp; |
282 | default: |
283 | break; |
284 | } |
285 | return (char *) text; |
286 | } |
287 | |
288 | |
289 | /* Print the version information. */ |
290 | static void |
291 | print_version (FILE *stream, struct argp_state *state) |
292 | { |
293 | fprintf (stream, "locale %s%s\n" , PKGVERSION, VERSION); |
294 | fprintf (stream, gettext ("\ |
295 | Copyright (C) %s Free Software Foundation, Inc.\n\ |
296 | This is free software; see the source for copying conditions. There is NO\n\ |
297 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ |
298 | " ), "2017" ); |
299 | fprintf (stream, gettext ("Written by %s.\n" ), "Ulrich Drepper" ); |
300 | } |
301 | |
302 | |
303 | /* Simple action function which prints arguments as strings. */ |
304 | static void |
305 | print_names (const void *nodep, VISIT value, int level) |
306 | { |
307 | if (value == postorder || value == leaf) |
308 | puts (*(char **) nodep); |
309 | } |
310 | |
311 | |
312 | static int |
313 | select_dirs (const struct dirent *dirent) |
314 | { |
315 | int result = 0; |
316 | |
317 | if (strcmp (dirent->d_name, "." ) != 0 && strcmp (dirent->d_name, ".." ) != 0) |
318 | { |
319 | mode_t mode = 0; |
320 | |
321 | #ifdef _DIRENT_HAVE_D_TYPE |
322 | if (dirent->d_type != DT_UNKNOWN && dirent->d_type != DT_LNK) |
323 | mode = DTTOIF (dirent->d_type); |
324 | else |
325 | #endif |
326 | { |
327 | struct stat64 st; |
328 | char buf[sizeof (COMPLOCALEDIR) |
329 | + strlen (dirent->d_name) + 1]; |
330 | |
331 | stpcpy (stpcpy (stpcpy (buf, COMPLOCALEDIR), "/" ), |
332 | dirent->d_name); |
333 | |
334 | if (stat64 (buf, &st) == 0) |
335 | mode = st.st_mode; |
336 | } |
337 | |
338 | result = S_ISDIR (mode); |
339 | } |
340 | |
341 | return result; |
342 | } |
343 | |
344 | |
345 | static void |
346 | print_LC_IDENTIFICATION (void *mapped, size_t size) |
347 | { |
348 | /* Read the information from the file. */ |
349 | struct |
350 | { |
351 | unsigned int magic; |
352 | unsigned int nstrings; |
353 | unsigned int strindex[0]; |
354 | } *filedata = mapped; |
355 | |
356 | if (filedata->magic == LIMAGIC (LC_IDENTIFICATION) |
357 | && (sizeof *filedata |
358 | + (filedata->nstrings |
359 | * sizeof (unsigned int)) |
360 | <= size)) |
361 | { |
362 | const char *str; |
363 | |
364 | #define HANDLE(idx, name) \ |
365 | str = ((char *) mapped \ |
366 | + filedata->strindex[_NL_ITEM_INDEX (_NL_IDENTIFICATION_##idx)]); \ |
367 | if (*str != '\0') \ |
368 | printf ("%9s | %s\n", name, str) |
369 | HANDLE (TITLE, "title" ); |
370 | HANDLE (SOURCE, "source" ); |
371 | HANDLE (ADDRESS, "address" ); |
372 | HANDLE (CONTACT, "contact" ); |
373 | HANDLE (EMAIL, "email" ); |
374 | HANDLE (TEL, "telephone" ); |
375 | HANDLE (FAX, "fax" ); |
376 | HANDLE (LANGUAGE, "language" ); |
377 | HANDLE (TERRITORY, "territory" ); |
378 | HANDLE (AUDIENCE, "audience" ); |
379 | HANDLE (APPLICATION, "application" ); |
380 | HANDLE (ABBREVIATION, "abbreviation" ); |
381 | HANDLE (REVISION, "revision" ); |
382 | HANDLE (DATE, "date" ); |
383 | } |
384 | } |
385 | |
386 | |
387 | static void |
388 | print_LC_CTYPE (void *mapped, size_t size) |
389 | { |
390 | struct |
391 | { |
392 | unsigned int magic; |
393 | unsigned int nstrings; |
394 | unsigned int strindex[0]; |
395 | } *filedata = mapped; |
396 | |
397 | if (filedata->magic == LIMAGIC (LC_CTYPE) |
398 | && (sizeof *filedata |
399 | + (filedata->nstrings |
400 | * sizeof (unsigned int)) |
401 | <= size)) |
402 | { |
403 | const char *str; |
404 | |
405 | str = ((char *) mapped |
406 | + filedata->strindex[_NL_ITEM_INDEX (_NL_CTYPE_CODESET_NAME)]); |
407 | if (*str != '\0') |
408 | printf (" codeset | %s\n" , str); |
409 | } |
410 | } |
411 | |
412 | |
413 | /* Write the names of all available locales to stdout. We have some |
414 | sources of the information: the contents of the locale directory |
415 | and the locale.alias file. To avoid duplicates and print the |
416 | result is a reasonable order we put all entries is a search tree |
417 | and print them afterwards. */ |
418 | static void |
419 | write_locales (void) |
420 | { |
421 | char linebuf[80]; |
422 | void *all_data = NULL; |
423 | struct dirent **dirents; |
424 | int ndirents; |
425 | int cnt; |
426 | char *alias_path; |
427 | size_t alias_path_len; |
428 | char *entry; |
429 | int first_locale = 1; |
430 | |
431 | #define PUT(name) tsearch (name, &all_data, \ |
432 | (int (*) (const void *, const void *)) strcoll) |
433 | #define GET(name) tfind (name, &all_data, \ |
434 | (int (*) (const void *, const void *)) strcoll) |
435 | |
436 | /* `POSIX' locale is always available (POSIX.2 4.34.3). */ |
437 | PUT ("POSIX" ); |
438 | /* And so is the "C" locale. */ |
439 | PUT ("C" ); |
440 | |
441 | memset (linebuf, '-', sizeof (linebuf) - 1); |
442 | linebuf[sizeof (linebuf) - 1] = '\0'; |
443 | |
444 | /* First scan the locale archive. */ |
445 | if (write_archive_locales (&all_data, linebuf)) |
446 | first_locale = 0; |
447 | |
448 | /* Now we can look for all files in the directory. */ |
449 | ndirents = scandir (COMPLOCALEDIR, &dirents, select_dirs, |
450 | alphasort); |
451 | for (cnt = 0; cnt < ndirents; ++cnt) |
452 | { |
453 | /* Test whether at least the LC_CTYPE data is there. Some |
454 | directories only contain translations. */ |
455 | char buf[sizeof (COMPLOCALEDIR) |
456 | + strlen (dirents[cnt]->d_name) |
457 | + sizeof "/LC_IDENTIFICATION" ]; |
458 | char *enddir; |
459 | struct stat64 st; |
460 | |
461 | stpcpy (enddir = stpcpy (stpcpy (stpcpy (buf, |
462 | COMPLOCALEDIR), |
463 | "/" ), |
464 | dirents[cnt]->d_name), |
465 | "/LC_IDENTIFICATION" ); |
466 | |
467 | if (stat64 (buf, &st) == 0 && S_ISREG (st.st_mode)) |
468 | { |
469 | if (verbose && GET (dirents[cnt]->d_name) == NULL) |
470 | { |
471 | /* Provide some nice output of all kinds of |
472 | information. */ |
473 | int fd; |
474 | |
475 | if (! first_locale) |
476 | putchar_unlocked ('\n'); |
477 | first_locale = 0; |
478 | |
479 | printf ("locale: %-15.15s directory: %.*s\n%s\n" , |
480 | dirents[cnt]->d_name, (int) (enddir - buf), buf, |
481 | linebuf); |
482 | |
483 | fd = open64 (buf, O_RDONLY); |
484 | if (fd != -1) |
485 | { |
486 | void *mapped = mmap64 (NULL, st.st_size, PROT_READ, |
487 | MAP_SHARED, fd, 0); |
488 | if (mapped != MAP_FAILED) |
489 | { |
490 | print_LC_IDENTIFICATION (mapped, st.st_size); |
491 | |
492 | munmap (mapped, st.st_size); |
493 | } |
494 | |
495 | close (fd); |
496 | |
497 | /* Now try to get the charset information. */ |
498 | strcpy (enddir, "/LC_CTYPE" ); |
499 | fd = open64 (buf, O_RDONLY); |
500 | if (fd != -1 && fstat64 (fd, &st) >= 0 |
501 | && ((mapped = mmap64 (NULL, st.st_size, PROT_READ, |
502 | MAP_SHARED, fd, 0)) |
503 | != MAP_FAILED)) |
504 | { |
505 | print_LC_CTYPE (mapped, st.st_size); |
506 | |
507 | munmap (mapped, st.st_size); |
508 | } |
509 | |
510 | if (fd != -1) |
511 | close (fd); |
512 | } |
513 | } |
514 | |
515 | /* If the verbose format is not selected we simply |
516 | collect the names. */ |
517 | PUT (xstrdup (dirents[cnt]->d_name)); |
518 | } |
519 | } |
520 | if (ndirents > 0) |
521 | free (dirents); |
522 | |
523 | /* Now read the locale.alias files. */ |
524 | if (argz_create_sep (LOCALE_ALIAS_PATH, ':', &alias_path, &alias_path_len)) |
525 | error (1, errno, gettext ("while preparing output" )); |
526 | |
527 | entry = NULL; |
528 | while ((entry = argz_next (alias_path, alias_path_len, entry))) |
529 | { |
530 | static const char aliasfile[] = "/locale.alias" ; |
531 | FILE *fp; |
532 | char full_name[strlen (entry) + sizeof aliasfile]; |
533 | |
534 | stpcpy (stpcpy (full_name, entry), aliasfile); |
535 | fp = fopen (full_name, "rm" ); |
536 | if (fp == NULL) |
537 | /* Ignore non-existing files. */ |
538 | continue; |
539 | |
540 | /* No threads present. */ |
541 | __fsetlocking (fp, FSETLOCKING_BYCALLER); |
542 | |
543 | while (! feof_unlocked (fp)) |
544 | { |
545 | /* It is a reasonable approach to use a fix buffer here |
546 | because |
547 | a) we are only interested in the first two fields |
548 | b) these fields must be usable as file names and so must |
549 | not be that long */ |
550 | char buf[BUFSIZ]; |
551 | char *alias; |
552 | char *value; |
553 | char *cp; |
554 | |
555 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
556 | /* EOF reached. */ |
557 | break; |
558 | |
559 | cp = buf; |
560 | /* Ignore leading white space. */ |
561 | while (isspace (cp[0]) && cp[0] != '\n') |
562 | ++cp; |
563 | |
564 | /* A leading '#' signals a comment line. */ |
565 | if (cp[0] != '\0' && cp[0] != '#' && cp[0] != '\n') |
566 | { |
567 | alias = cp++; |
568 | while (cp[0] != '\0' && !isspace (cp[0])) |
569 | ++cp; |
570 | /* Terminate alias name. */ |
571 | if (cp[0] != '\0') |
572 | *cp++ = '\0'; |
573 | |
574 | /* Now look for the beginning of the value. */ |
575 | while (isspace (cp[0])) |
576 | ++cp; |
577 | |
578 | if (cp[0] != '\0') |
579 | { |
580 | value = cp++; |
581 | while (cp[0] != '\0' && !isspace (cp[0])) |
582 | ++cp; |
583 | /* Terminate value. */ |
584 | if (cp[0] == '\n') |
585 | { |
586 | /* This has to be done to make the following |
587 | test for the end of line possible. We are |
588 | looking for the terminating '\n' which do not |
589 | overwrite here. */ |
590 | *cp++ = '\0'; |
591 | *cp = '\n'; |
592 | } |
593 | else if (cp[0] != '\0') |
594 | *cp++ = '\0'; |
595 | |
596 | /* Add the alias. */ |
597 | if (! verbose && GET (value) != NULL) |
598 | PUT (xstrdup (alias)); |
599 | } |
600 | } |
601 | |
602 | /* Possibly not the whole line fits into the buffer. |
603 | Ignore the rest of the line. */ |
604 | while (strchr (cp, '\n') == NULL) |
605 | { |
606 | cp = buf; |
607 | if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
608 | /* Make sure the inner loop will be left. The outer |
609 | loop will exit at the `feof' test. */ |
610 | *cp = '\n'; |
611 | } |
612 | } |
613 | |
614 | fclose (fp); |
615 | } |
616 | |
617 | if (! verbose) |
618 | { |
619 | twalk (all_data, print_names); |
620 | } |
621 | } |
622 | |
623 | |
624 | struct nameent |
625 | { |
626 | char *name; |
627 | uint32_t locrec_offset; |
628 | }; |
629 | |
630 | |
631 | static int |
632 | nameentcmp (const void *a, const void *b) |
633 | { |
634 | return strcoll (((const struct nameent *) a)->name, |
635 | ((const struct nameent *) b)->name); |
636 | } |
637 | |
638 | |
639 | static int |
640 | write_archive_locales (void **all_datap, char *linebuf) |
641 | { |
642 | struct stat64 st; |
643 | void *all_data = *all_datap; |
644 | size_t len = 0; |
645 | struct locarhead *head; |
646 | struct namehashent *namehashtab; |
647 | char *addr = MAP_FAILED; |
648 | int fd, ret = 0; |
649 | uint32_t cnt; |
650 | |
651 | fd = open64 (ARCHIVE_NAME, O_RDONLY); |
652 | if (fd < 0) |
653 | return 0; |
654 | |
655 | if (fstat64 (fd, &st) < 0 || st.st_size < sizeof (*head)) |
656 | goto error_out; |
657 | |
658 | len = st.st_size; |
659 | addr = mmap64 (NULL, len, PROT_READ, MAP_SHARED, fd, 0); |
660 | if (addr == MAP_FAILED) |
661 | goto error_out; |
662 | |
663 | head = (struct locarhead *) addr; |
664 | if (head->namehash_offset + head->namehash_size > len |
665 | || head->string_offset + head->string_size > len |
666 | || head->locrectab_offset + head->locrectab_size > len |
667 | || head->sumhash_offset + head->sumhash_size > len) |
668 | goto error_out; |
669 | |
670 | namehashtab = (struct namehashent *) (addr + head->namehash_offset); |
671 | if (! verbose) |
672 | { |
673 | for (cnt = 0; cnt < head->namehash_size; ++cnt) |
674 | if (namehashtab[cnt].locrec_offset != 0) |
675 | { |
676 | PUT (xstrdup (addr + namehashtab[cnt].name_offset)); |
677 | ++ret; |
678 | } |
679 | } |
680 | else |
681 | { |
682 | struct nameent *names; |
683 | uint32_t used; |
684 | |
685 | names = (struct nameent *) xmalloc (head->namehash_used |
686 | * sizeof (struct nameent)); |
687 | for (cnt = used = 0; cnt < head->namehash_size; ++cnt) |
688 | if (namehashtab[cnt].locrec_offset != 0) |
689 | { |
690 | names[used].name = addr + namehashtab[cnt].name_offset; |
691 | names[used++].locrec_offset = namehashtab[cnt].locrec_offset; |
692 | } |
693 | |
694 | /* Sort the names. */ |
695 | qsort (names, used, sizeof (struct nameent), nameentcmp); |
696 | |
697 | for (cnt = 0; cnt < used; ++cnt) |
698 | { |
699 | struct locrecent *locrec; |
700 | |
701 | PUT (xstrdup (names[cnt].name)); |
702 | |
703 | if (cnt) |
704 | putchar_unlocked ('\n'); |
705 | |
706 | printf ("locale: %-15.15s archive: " ARCHIVE_NAME "\n%s\n" , |
707 | names[cnt].name, linebuf); |
708 | |
709 | locrec = (struct locrecent *) (addr + names[cnt].locrec_offset); |
710 | |
711 | print_LC_IDENTIFICATION (addr |
712 | + locrec->record[LC_IDENTIFICATION].offset, |
713 | locrec->record[LC_IDENTIFICATION].len); |
714 | |
715 | print_LC_CTYPE (addr + locrec->record[LC_CTYPE].offset, |
716 | locrec->record[LC_CTYPE].len); |
717 | } |
718 | |
719 | ret = used; |
720 | } |
721 | |
722 | error_out: |
723 | if (addr != MAP_FAILED) |
724 | munmap (addr, len); |
725 | close (fd); |
726 | *all_datap = all_data; |
727 | return ret; |
728 | } |
729 | |
730 | |
731 | /* Write the names of all available character maps to stdout. */ |
732 | static void |
733 | write_charmaps (void) |
734 | { |
735 | void *all_data = NULL; |
736 | CHARMAP_DIR *dir; |
737 | const char *dirent; |
738 | |
739 | /* Look for all files in the charmap directory. */ |
740 | dir = charmap_opendir (CHARMAP_PATH); |
741 | if (dir == NULL) |
742 | return; |
743 | |
744 | while ((dirent = charmap_readdir (dir)) != NULL) |
745 | { |
746 | char **aliases; |
747 | char **p; |
748 | |
749 | PUT (xstrdup (dirent)); |
750 | |
751 | aliases = charmap_aliases (CHARMAP_PATH, dirent); |
752 | |
753 | #if 0 |
754 | /* Add the code_set_name and the aliases. */ |
755 | for (p = aliases; *p; p++) |
756 | PUT (xstrdup (*p)); |
757 | #else |
758 | /* Add the code_set_name only. Most aliases are obsolete. */ |
759 | p = aliases; |
760 | if (*p) |
761 | PUT (xstrdup (*p)); |
762 | #endif |
763 | |
764 | charmap_free_aliases (aliases); |
765 | } |
766 | |
767 | charmap_closedir (dir); |
768 | |
769 | twalk (all_data, print_names); |
770 | } |
771 | |
772 | /* Print a properly quoted assignment of NAME with VAL, using double |
773 | quotes iff DQUOTE is true. */ |
774 | static void |
775 | print_assignment (const char *name, const char *val, bool dquote) |
776 | { |
777 | printf ("%s=" , name); |
778 | if (dquote) |
779 | putchar ('"'); |
780 | while (*val != '\0') |
781 | { |
782 | size_t segment |
783 | = strcspn (val, dquote ? "$`\"\\" : "~|&;<>()$`\\\"' \t\n" ); |
784 | printf ("%.*s" , (int) segment, val); |
785 | val += segment; |
786 | if (*val == '\0') |
787 | break; |
788 | putchar ('\\'); |
789 | putchar (*val++); |
790 | } |
791 | if (dquote) |
792 | putchar ('"'); |
793 | putchar ('\n'); |
794 | } |
795 | |
796 | /* We have to show the contents of the environments determining the |
797 | locale. */ |
798 | static void |
799 | show_locale_vars (void) |
800 | { |
801 | const char *lcall = getenv ("LC_ALL" ) ?: "" ; |
802 | const char *lang = getenv ("LANG" ) ?: "" ; |
803 | |
804 | /* LANG has to be the first value. */ |
805 | print_assignment ("LANG" , lang, false); |
806 | |
807 | /* Now all categories in an unspecified order. */ |
808 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
809 | if (cat_no != LC_ALL) |
810 | { |
811 | const char *name = category[cat_no].name; |
812 | const char *val = getenv (name); |
813 | |
814 | if (lcall[0] != '\0' || val == NULL) |
815 | print_assignment (name, |
816 | lcall[0] != '\0' ? lcall |
817 | : lang[0] != '\0' ? lang |
818 | : "POSIX" , |
819 | true); |
820 | else |
821 | print_assignment (name, val, false); |
822 | } |
823 | |
824 | /* The last is the LC_ALL value. */ |
825 | print_assignment ("LC_ALL" , lcall, false); |
826 | } |
827 | |
828 | |
829 | /* Subroutine of show_info, below. */ |
830 | static void |
831 | print_item (struct cat_item *item) |
832 | { |
833 | switch (item->value_type) |
834 | { |
835 | case string: |
836 | if (show_keyword_name) |
837 | printf ("%s=\"" , item->name); |
838 | fputs (nl_langinfo (item->item_id) ? : "" , stdout); |
839 | if (show_keyword_name) |
840 | putchar ('"'); |
841 | putchar ('\n'); |
842 | break; |
843 | case stringarray: |
844 | { |
845 | const char *val; |
846 | int cnt; |
847 | |
848 | if (show_keyword_name) |
849 | printf ("%s=\"" , item->name); |
850 | |
851 | for (cnt = 0; cnt < item->max - 1; ++cnt) |
852 | { |
853 | val = nl_langinfo (item->item_id + cnt); |
854 | if (val != NULL) |
855 | fputs (val, stdout); |
856 | putchar (';'); |
857 | } |
858 | |
859 | val = nl_langinfo (item->item_id + cnt); |
860 | if (val != NULL) |
861 | fputs (val, stdout); |
862 | |
863 | if (show_keyword_name) |
864 | putchar ('"'); |
865 | putchar ('\n'); |
866 | } |
867 | break; |
868 | case stringlist: |
869 | { |
870 | int first = 1; |
871 | const char *val = nl_langinfo (item->item_id) ? : "" ; |
872 | |
873 | if (show_keyword_name) |
874 | printf ("%s=" , item->name); |
875 | |
876 | for (int cnt = 0; cnt < item->max && *val != '\0'; ++cnt) |
877 | { |
878 | printf ("%s%s%s%s" , first ? "" : ";" , |
879 | show_keyword_name ? "\"" : "" , val, |
880 | show_keyword_name ? "\"" : "" ); |
881 | val = strchr (val, '\0') + 1; |
882 | first = 0; |
883 | } |
884 | putchar ('\n'); |
885 | } |
886 | break; |
887 | case byte: |
888 | { |
889 | const char *val = nl_langinfo (item->item_id); |
890 | |
891 | if (show_keyword_name) |
892 | printf ("%s=" , item->name); |
893 | |
894 | if (val != NULL) |
895 | printf ("%d" , *val == '\377' ? -1 : *val); |
896 | putchar ('\n'); |
897 | } |
898 | break; |
899 | case bytearray: |
900 | { |
901 | const char *val = nl_langinfo (item->item_id); |
902 | int cnt = val ? strlen (val) : 0; |
903 | |
904 | if (show_keyword_name) |
905 | printf ("%s=" , item->name); |
906 | |
907 | while (cnt > 1) |
908 | { |
909 | printf ("%d;" , *val == '\177' ? -1 : *val); |
910 | --cnt; |
911 | ++val; |
912 | } |
913 | |
914 | printf ("%d\n" , cnt == 0 || *val == '\177' ? -1 : *val); |
915 | } |
916 | break; |
917 | case word: |
918 | { |
919 | union { unsigned int word; char *string; } val; |
920 | val.string = nl_langinfo (item->item_id); |
921 | if (show_keyword_name) |
922 | printf ("%s=" , item->name); |
923 | |
924 | printf ("%d\n" , val.word); |
925 | } |
926 | break; |
927 | case wordarray: |
928 | { |
929 | int first = 1; |
930 | union { unsigned int *wordarray; char *string; } val; |
931 | |
932 | val.string = nl_langinfo (item->item_id); |
933 | if (show_keyword_name) |
934 | printf ("%s=" , item->name); |
935 | |
936 | for (int cnt = 0; cnt < item->max; ++cnt) |
937 | { |
938 | printf ("%s%d" , first ? "" : ";" , val.wordarray[cnt]); |
939 | first = 0; |
940 | } |
941 | putchar ('\n'); |
942 | } |
943 | break; |
944 | case wstring: |
945 | case wstringarray: |
946 | case wstringlist: |
947 | /* We don't print wide character information since the same |
948 | information is available in a multibyte string. */ |
949 | default: |
950 | break; |
951 | } |
952 | } |
953 | |
954 | /* Show the information request for NAME. */ |
955 | static void |
956 | show_info (const char *name) |
957 | { |
958 | for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
959 | if (cat_no != LC_ALL) |
960 | { |
961 | if (strcmp (name, category[cat_no].name) == 0) |
962 | /* Print the whole category. */ |
963 | { |
964 | if (show_category_name != 0) |
965 | puts (category[cat_no].name); |
966 | |
967 | for (size_t item_no = 0; |
968 | item_no < category[cat_no].number; |
969 | ++item_no) |
970 | print_item (&category[cat_no].item_desc[item_no]); |
971 | |
972 | return; |
973 | } |
974 | |
975 | for (size_t item_no = 0; item_no < category[cat_no].number; ++item_no) |
976 | if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0) |
977 | { |
978 | if (show_category_name != 0) |
979 | puts (category[cat_no].name); |
980 | |
981 | print_item (&category[cat_no].item_desc[item_no]); |
982 | return; |
983 | } |
984 | } |
985 | |
986 | /* The name is not a standard one. |
987 | For testing and perhaps advanced use allow some more symbols. */ |
988 | locale_special (name, show_category_name, show_keyword_name); |
989 | } |
990 | |