1 | /* Implementation of the internal dcigettext function. |
2 | Copyright (C) 1995-2017 Free Software Foundation, Inc. |
3 | |
4 | This program is free software: you can redistribute it and/or modify |
5 | it under the terms of the GNU Lesser General Public License as published by |
6 | the Free Software Foundation; either version 2.1 of the License, or |
7 | (at your option) any later version. |
8 | |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public License |
15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
16 | |
17 | /* Tell glibc's <string.h> to provide a prototype for mempcpy(). |
18 | This must come before <config.h> because <config.h> may include |
19 | <features.h>, and once <features.h> has been included, it's too late. */ |
20 | #ifndef _GNU_SOURCE |
21 | # define _GNU_SOURCE 1 |
22 | #endif |
23 | |
24 | #ifdef HAVE_CONFIG_H |
25 | # include <config.h> |
26 | #endif |
27 | |
28 | #include <sys/types.h> |
29 | |
30 | #ifdef __GNUC__ |
31 | # define alloca __builtin_alloca |
32 | # define HAVE_ALLOCA 1 |
33 | #else |
34 | # ifdef _MSC_VER |
35 | # include <malloc.h> |
36 | # define alloca _alloca |
37 | # else |
38 | # if defined HAVE_ALLOCA_H || defined _LIBC |
39 | # include <alloca.h> |
40 | # else |
41 | # ifdef _AIX |
42 | #pragma alloca |
43 | # else |
44 | # ifndef alloca |
45 | char *alloca (); |
46 | # endif |
47 | # endif |
48 | # endif |
49 | # endif |
50 | #endif |
51 | |
52 | #include <errno.h> |
53 | #ifndef errno |
54 | extern int errno; |
55 | #endif |
56 | #ifndef __set_errno |
57 | # define __set_errno(val) errno = (val) |
58 | #endif |
59 | |
60 | #include <stddef.h> |
61 | #include <stdlib.h> |
62 | #include <string.h> |
63 | |
64 | #if defined HAVE_UNISTD_H || defined _LIBC |
65 | # include <unistd.h> |
66 | #endif |
67 | |
68 | #include <locale.h> |
69 | |
70 | #ifdef _LIBC |
71 | /* Guess whether integer division by zero raises signal SIGFPE. |
72 | Set to 1 only if you know for sure. In case of doubt, set to 0. */ |
73 | # if defined __alpha__ || defined __arm__ || defined __i386__ \ |
74 | || defined __m68k__ || defined __s390__ |
75 | # define INTDIV0_RAISES_SIGFPE 1 |
76 | # else |
77 | # define INTDIV0_RAISES_SIGFPE 0 |
78 | # endif |
79 | #endif |
80 | #if !INTDIV0_RAISES_SIGFPE |
81 | # include <signal.h> |
82 | #endif |
83 | |
84 | #if defined HAVE_SYS_PARAM_H || defined _LIBC |
85 | # include <sys/param.h> |
86 | #endif |
87 | |
88 | #if !defined _LIBC |
89 | # include "localcharset.h" |
90 | #endif |
91 | |
92 | #include "gettextP.h" |
93 | #include "plural-exp.h" |
94 | #ifdef _LIBC |
95 | # include <libintl.h> |
96 | #else |
97 | # ifdef IN_LIBGLOCALE |
98 | # include <libintl.h> |
99 | # endif |
100 | # include "libgnuintl.h" |
101 | #endif |
102 | #include "hash-string.h" |
103 | |
104 | /* Handle multi-threaded applications. */ |
105 | #ifdef _LIBC |
106 | # include <libc-lock.h> |
107 | # define gl_rwlock_define_initialized __libc_rwlock_define_initialized |
108 | # define gl_rwlock_rdlock __libc_rwlock_rdlock |
109 | # define gl_rwlock_wrlock __libc_rwlock_wrlock |
110 | # define gl_rwlock_unlock __libc_rwlock_unlock |
111 | #else |
112 | # include "lock.h" |
113 | #endif |
114 | |
115 | /* Alignment of types. */ |
116 | #if defined __GNUC__ && __GNUC__ >= 2 |
117 | # define alignof(TYPE) __alignof__ (TYPE) |
118 | #else |
119 | # define alignof(TYPE) \ |
120 | ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2) |
121 | #endif |
122 | |
123 | /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */ |
124 | #ifndef offsetof |
125 | # define offsetof(type,ident) ((size_t)&(((type*)0)->ident)) |
126 | #endif |
127 | |
128 | /* @@ end of prolog @@ */ |
129 | |
130 | #ifdef _LIBC |
131 | /* Rename the non ANSI C functions. This is required by the standard |
132 | because some ANSI C functions will require linking with this object |
133 | file and the name space must not be polluted. */ |
134 | # define getcwd __getcwd |
135 | # ifndef stpcpy |
136 | # define stpcpy __stpcpy |
137 | # endif |
138 | # define tfind __tfind |
139 | #else |
140 | # if !defined HAVE_GETCWD |
141 | char *getwd (); |
142 | # define getcwd(buf, max) getwd (buf) |
143 | # else |
144 | # if VMS |
145 | # define getcwd(buf, max) (getcwd) (buf, max, 0) |
146 | # else |
147 | char *getcwd (); |
148 | # endif |
149 | # endif |
150 | # ifndef HAVE_STPCPY |
151 | static char *stpcpy (char *dest, const char *src); |
152 | # endif |
153 | # ifndef HAVE_MEMPCPY |
154 | static void *mempcpy (void *dest, const void *src, size_t n); |
155 | # endif |
156 | #endif |
157 | |
158 | /* Use a replacement if the system does not provide the `tsearch' function |
159 | family. */ |
160 | #if defined HAVE_TSEARCH || defined _LIBC |
161 | # include <search.h> |
162 | #else |
163 | # define tsearch libintl_tsearch |
164 | # define tfind libintl_tfind |
165 | # define tdelete libintl_tdelete |
166 | # define twalk libintl_twalk |
167 | # include "tsearch.h" |
168 | #endif |
169 | |
170 | #ifdef _LIBC |
171 | # define tsearch __tsearch |
172 | #endif |
173 | |
174 | /* Amount to increase buffer size by in each try. */ |
175 | #define PATH_INCR 32 |
176 | |
177 | /* The following is from pathmax.h. */ |
178 | /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define |
179 | PATH_MAX but might cause redefinition warnings when sys/param.h is |
180 | later included (as on MORE/BSD 4.3). */ |
181 | #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__) |
182 | # include <limits.h> |
183 | #endif |
184 | |
185 | #ifndef _POSIX_PATH_MAX |
186 | # define _POSIX_PATH_MAX 255 |
187 | #endif |
188 | |
189 | #if !defined PATH_MAX && defined _PC_PATH_MAX |
190 | # define PATH_MAX (__pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : __pathconf ("/", _PC_PATH_MAX)) |
191 | #endif |
192 | |
193 | /* Don't include sys/param.h if it already has been. */ |
194 | #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN |
195 | # include <sys/param.h> |
196 | #endif |
197 | |
198 | #if !defined PATH_MAX && defined MAXPATHLEN |
199 | # define PATH_MAX MAXPATHLEN |
200 | #endif |
201 | |
202 | #ifndef PATH_MAX |
203 | # define PATH_MAX _POSIX_PATH_MAX |
204 | #endif |
205 | |
206 | /* Pathname support. |
207 | ISSLASH(C) tests whether C is a directory separator character. |
208 | IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not, |
209 | it may be concatenated to a directory pathname. |
210 | IS_PATH_WITH_DIR(P) tests whether P contains a directory specification. |
211 | */ |
212 | #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ |
213 | /* Win32, Cygwin, OS/2, DOS */ |
214 | # define ISSLASH(C) ((C) == '/' || (C) == '\\') |
215 | # define HAS_DEVICE(P) \ |
216 | ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \ |
217 | && (P)[1] == ':') |
218 | # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P)) |
219 | # define IS_PATH_WITH_DIR(P) \ |
220 | (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P)) |
221 | #else |
222 | /* Unix */ |
223 | # define ISSLASH(C) ((C) == '/') |
224 | # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0]) |
225 | # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL) |
226 | #endif |
227 | |
228 | /* Whether to support different locales in different threads. */ |
229 | #if defined _LIBC || HAVE_USELOCALE || defined IN_LIBGLOCALE |
230 | # define HAVE_PER_THREAD_LOCALE |
231 | #endif |
232 | |
233 | /* This is the type used for the search tree where known translations |
234 | are stored. */ |
235 | struct known_translation_t |
236 | { |
237 | /* Domain in which to search. */ |
238 | const char *domainname; |
239 | |
240 | /* The category. */ |
241 | int category; |
242 | |
243 | #ifdef HAVE_PER_THREAD_LOCALE |
244 | /* Name of the relevant locale category, or "" for the global locale. */ |
245 | const char *localename; |
246 | #endif |
247 | |
248 | #ifdef IN_LIBGLOCALE |
249 | /* The character encoding. */ |
250 | const char *encoding; |
251 | #endif |
252 | |
253 | /* State of the catalog counter at the point the string was found. */ |
254 | int counter; |
255 | |
256 | /* Catalog where the string was found. */ |
257 | struct loaded_l10nfile *domain; |
258 | |
259 | /* And finally the translation. */ |
260 | const char *translation; |
261 | size_t translation_length; |
262 | |
263 | /* Pointer to the string in question. */ |
264 | union |
265 | { |
266 | char appended[ZERO]; /* used if domain != NULL */ |
267 | const char *ptr; /* used if domain == NULL */ |
268 | } |
269 | msgid; |
270 | }; |
271 | |
272 | gl_rwlock_define_initialized (static, tree_lock) |
273 | |
274 | /* Root of the search tree with known translations. */ |
275 | static void *root; |
276 | |
277 | /* Function to compare two entries in the table of known translations. */ |
278 | static int |
279 | transcmp (const void *p1, const void *p2) |
280 | { |
281 | const struct known_translation_t *s1; |
282 | const struct known_translation_t *s2; |
283 | int result; |
284 | |
285 | s1 = (const struct known_translation_t *) p1; |
286 | s2 = (const struct known_translation_t *) p2; |
287 | |
288 | result = strcmp (s1->domain != NULL ? s1->msgid.appended : s1->msgid.ptr, |
289 | s2->domain != NULL ? s2->msgid.appended : s2->msgid.ptr); |
290 | if (result == 0) |
291 | { |
292 | result = strcmp (s1->domainname, s2->domainname); |
293 | if (result == 0) |
294 | { |
295 | #ifdef HAVE_PER_THREAD_LOCALE |
296 | result = strcmp (s1->localename, s2->localename); |
297 | if (result == 0) |
298 | #endif |
299 | { |
300 | #ifdef IN_LIBGLOCALE |
301 | result = strcmp (s1->encoding, s2->encoding); |
302 | if (result == 0) |
303 | #endif |
304 | /* We compare the category last (though this is the cheapest |
305 | operation) since it is hopefully always the same (namely |
306 | LC_MESSAGES). */ |
307 | result = s1->category - s2->category; |
308 | } |
309 | } |
310 | } |
311 | |
312 | return result; |
313 | } |
314 | |
315 | /* Name of the default domain used for gettext(3) prior any call to |
316 | textdomain(3). The default value for this is "messages". */ |
317 | const char _nl_default_default_domain[] attribute_hidden = "messages" ; |
318 | |
319 | #ifndef IN_LIBGLOCALE |
320 | /* Value used as the default domain for gettext(3). */ |
321 | const char *_nl_current_default_domain attribute_hidden |
322 | = _nl_default_default_domain; |
323 | #endif |
324 | |
325 | /* Contains the default location of the message catalogs. */ |
326 | #if defined __EMX__ |
327 | extern const char _nl_default_dirname[]; |
328 | #else |
329 | # ifdef _LIBC |
330 | extern const char _nl_default_dirname[]; |
331 | libc_hidden_proto (_nl_default_dirname) |
332 | # endif |
333 | const char _nl_default_dirname[] = LOCALEDIR; |
334 | # ifdef _LIBC |
335 | libc_hidden_data_def (_nl_default_dirname) |
336 | # endif |
337 | #endif |
338 | |
339 | #ifndef IN_LIBGLOCALE |
340 | /* List with bindings of specific domains created by bindtextdomain() |
341 | calls. */ |
342 | struct binding *_nl_domain_bindings; |
343 | #endif |
344 | |
345 | /* Prototypes for local functions. */ |
346 | static char *plural_lookup (struct loaded_l10nfile *domain, |
347 | unsigned long int n, |
348 | const char *translation, size_t translation_len) |
349 | internal_function; |
350 | |
351 | #ifdef IN_LIBGLOCALE |
352 | static const char *guess_category_value (int category, |
353 | const char *categoryname, |
354 | const char *localename) |
355 | internal_function; |
356 | #else |
357 | static const char *guess_category_value (int category, |
358 | const char *categoryname) |
359 | internal_function; |
360 | #endif |
361 | |
362 | #ifdef _LIBC |
363 | # include "../locale/localeinfo.h" |
364 | # define category_to_name(category) \ |
365 | _nl_category_names.str + _nl_category_name_idxs[category] |
366 | #else |
367 | static const char *category_to_name (int category) internal_function; |
368 | #endif |
369 | #if (defined _LIBC || HAVE_ICONV) && !defined IN_LIBGLOCALE |
370 | static const char *get_output_charset (struct binding *domainbinding) |
371 | internal_function; |
372 | #endif |
373 | |
374 | |
375 | /* For those losing systems which don't have `alloca' we have to add |
376 | some additional code emulating it. */ |
377 | #ifdef HAVE_ALLOCA |
378 | /* Nothing has to be done. */ |
379 | # define freea(p) /* nothing */ |
380 | # define ADD_BLOCK(list, address) /* nothing */ |
381 | # define FREE_BLOCKS(list) /* nothing */ |
382 | #else |
383 | struct block_list |
384 | { |
385 | void *address; |
386 | struct block_list *next; |
387 | }; |
388 | # define ADD_BLOCK(list, addr) \ |
389 | do { \ |
390 | struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \ |
391 | /* If we cannot get a free block we cannot add the new element to \ |
392 | the list. */ \ |
393 | if (newp != NULL) { \ |
394 | newp->address = (addr); \ |
395 | newp->next = (list); \ |
396 | (list) = newp; \ |
397 | } \ |
398 | } while (0) |
399 | # define FREE_BLOCKS(list) \ |
400 | do { \ |
401 | while (list != NULL) { \ |
402 | struct block_list *old = list; \ |
403 | list = list->next; \ |
404 | free (old->address); \ |
405 | free (old); \ |
406 | } \ |
407 | } while (0) |
408 | # undef alloca |
409 | # define alloca(size) (malloc (size)) |
410 | # define freea(p) free (p) |
411 | #endif /* have alloca */ |
412 | |
413 | |
414 | #ifdef _LIBC |
415 | /* List of blocks allocated for translations. */ |
416 | typedef struct transmem_list |
417 | { |
418 | struct transmem_list *next; |
419 | char data[ZERO]; |
420 | } transmem_block_t; |
421 | static struct transmem_list *transmem_list; |
422 | #else |
423 | typedef unsigned char transmem_block_t; |
424 | #endif |
425 | |
426 | |
427 | /* Names for the libintl functions are a problem. They must not clash |
428 | with existing names and they should follow ANSI C. But this source |
429 | code is also used in GNU C Library where the names have a __ |
430 | prefix. So we have to make a difference here. */ |
431 | #ifdef _LIBC |
432 | # define DCIGETTEXT __dcigettext |
433 | #else |
434 | # define DCIGETTEXT libintl_dcigettext |
435 | #endif |
436 | |
437 | /* Lock variable to protect the global data in the gettext implementation. */ |
438 | gl_rwlock_define_initialized (, _nl_state_lock attribute_hidden) |
439 | |
440 | /* Checking whether the binaries runs SUID must be done and glibc provides |
441 | easier methods therefore we make a difference here. */ |
442 | #ifdef _LIBC |
443 | # define ENABLE_SECURE __libc_enable_secure |
444 | # define DETERMINE_SECURE |
445 | #else |
446 | # ifndef HAVE_GETUID |
447 | # define getuid() 0 |
448 | # endif |
449 | # ifndef HAVE_GETGID |
450 | # define getgid() 0 |
451 | # endif |
452 | # ifndef HAVE_GETEUID |
453 | # define geteuid() getuid() |
454 | # endif |
455 | # ifndef HAVE_GETEGID |
456 | # define getegid() getgid() |
457 | # endif |
458 | static int enable_secure; |
459 | # define ENABLE_SECURE (enable_secure == 1) |
460 | # define DETERMINE_SECURE \ |
461 | if (enable_secure == 0) \ |
462 | { \ |
463 | if (getuid () != geteuid () || getgid () != getegid ()) \ |
464 | enable_secure = 1; \ |
465 | else \ |
466 | enable_secure = -1; \ |
467 | } |
468 | #endif |
469 | |
470 | /* Get the function to evaluate the plural expression. */ |
471 | #include "eval-plural.h" |
472 | |
473 | /* Look up MSGID in the DOMAINNAME message catalog for the current |
474 | CATEGORY locale and, if PLURAL is nonzero, search over string |
475 | depending on the plural form determined by N. */ |
476 | #ifdef IN_LIBGLOCALE |
477 | char * |
478 | gl_dcigettext (const char *domainname, |
479 | const char *msgid1, const char *msgid2, |
480 | int plural, unsigned long int n, |
481 | int category, |
482 | const char *localename, const char *encoding) |
483 | #else |
484 | char * |
485 | DCIGETTEXT (const char *domainname, const char *msgid1, const char *msgid2, |
486 | int plural, unsigned long int n, int category) |
487 | #endif |
488 | { |
489 | #ifndef HAVE_ALLOCA |
490 | struct block_list *block_list = NULL; |
491 | #endif |
492 | struct loaded_l10nfile *domain; |
493 | struct binding *binding; |
494 | const char *categoryname; |
495 | const char *categoryvalue; |
496 | const char *dirname; |
497 | char *xdomainname; |
498 | char *single_locale; |
499 | char *retval; |
500 | size_t retlen; |
501 | int saved_errno; |
502 | struct known_translation_t search; |
503 | struct known_translation_t **foundp = NULL; |
504 | #if defined HAVE_PER_THREAD_LOCALE && !defined IN_LIBGLOCALE |
505 | const char *localename; |
506 | #endif |
507 | size_t domainname_len; |
508 | |
509 | /* If no real MSGID is given return NULL. */ |
510 | if (msgid1 == NULL) |
511 | return NULL; |
512 | |
513 | #ifdef _LIBC |
514 | if (category < 0 || category >= __LC_LAST || category == LC_ALL) |
515 | /* Bogus. */ |
516 | return (plural == 0 |
517 | ? (char *) msgid1 |
518 | /* Use the Germanic plural rule. */ |
519 | : n == 1 ? (char *) msgid1 : (char *) msgid2); |
520 | #endif |
521 | |
522 | /* Preserve the `errno' value. */ |
523 | saved_errno = errno; |
524 | |
525 | #ifdef _LIBC |
526 | __libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden) |
527 | __libc_rwlock_rdlock (__libc_setlocale_lock); |
528 | #endif |
529 | |
530 | gl_rwlock_rdlock (_nl_state_lock); |
531 | |
532 | /* If DOMAINNAME is NULL, we are interested in the default domain. If |
533 | CATEGORY is not LC_MESSAGES this might not make much sense but the |
534 | definition left this undefined. */ |
535 | if (domainname == NULL) |
536 | domainname = _nl_current_default_domain; |
537 | |
538 | /* OS/2 specific: backward compatibility with older libintl versions */ |
539 | #ifdef LC_MESSAGES_COMPAT |
540 | if (category == LC_MESSAGES_COMPAT) |
541 | category = LC_MESSAGES; |
542 | #endif |
543 | |
544 | /* Try to find the translation among those which we found at |
545 | some time. */ |
546 | search.domain = NULL; |
547 | search.msgid.ptr = msgid1; |
548 | search.domainname = domainname; |
549 | search.category = category; |
550 | #ifdef HAVE_PER_THREAD_LOCALE |
551 | # ifndef IN_LIBGLOCALE |
552 | # ifdef _LIBC |
553 | localename = strdupa (__current_locale_name (category)); |
554 | # else |
555 | categoryname = category_to_name (category); |
556 | # define CATEGORYNAME_INITIALIZED |
557 | localename = _nl_locale_name_thread_unsafe (category, categoryname); |
558 | if (localename == NULL) |
559 | localename = "" ; |
560 | # endif |
561 | # endif |
562 | search.localename = localename; |
563 | # ifdef IN_LIBGLOCALE |
564 | search.encoding = encoding; |
565 | # endif |
566 | |
567 | /* Since tfind/tsearch manage a balanced tree, concurrent tfind and |
568 | tsearch calls can be fatal. */ |
569 | gl_rwlock_rdlock (tree_lock); |
570 | |
571 | foundp = (struct known_translation_t **) tfind (&search, &root, transcmp); |
572 | |
573 | gl_rwlock_unlock (tree_lock); |
574 | |
575 | if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr) |
576 | { |
577 | /* Now deal with plural. */ |
578 | if (plural) |
579 | retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation, |
580 | (*foundp)->translation_length); |
581 | else |
582 | retval = (char *) (*foundp)->translation; |
583 | |
584 | gl_rwlock_unlock (_nl_state_lock); |
585 | # ifdef _LIBC |
586 | __libc_rwlock_unlock (__libc_setlocale_lock); |
587 | # endif |
588 | __set_errno (saved_errno); |
589 | return retval; |
590 | } |
591 | #endif |
592 | |
593 | /* See whether this is a SUID binary or not. */ |
594 | DETERMINE_SECURE; |
595 | |
596 | /* First find matching binding. */ |
597 | #ifdef IN_LIBGLOCALE |
598 | /* We can use a trivial binding, since _nl_find_msg will ignore it anyway, |
599 | and _nl_load_domain and _nl_find_domain just pass it through. */ |
600 | binding = NULL; |
601 | dirname = bindtextdomain (domainname, NULL); |
602 | #else |
603 | for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) |
604 | { |
605 | int compare = strcmp (domainname, binding->domainname); |
606 | if (compare == 0) |
607 | /* We found it! */ |
608 | break; |
609 | if (compare < 0) |
610 | { |
611 | /* It is not in the list. */ |
612 | binding = NULL; |
613 | break; |
614 | } |
615 | } |
616 | |
617 | if (binding == NULL) |
618 | dirname = _nl_default_dirname; |
619 | else |
620 | { |
621 | dirname = binding->dirname; |
622 | #endif |
623 | if (!IS_ABSOLUTE_PATH (dirname)) |
624 | { |
625 | /* We have a relative path. Make it absolute now. */ |
626 | size_t dirname_len = strlen (dirname) + 1; |
627 | size_t path_max; |
628 | char *resolved_dirname; |
629 | char *ret; |
630 | |
631 | path_max = (unsigned int) PATH_MAX; |
632 | path_max += 2; /* The getcwd docs say to do this. */ |
633 | |
634 | for (;;) |
635 | { |
636 | resolved_dirname = (char *) alloca (path_max + dirname_len); |
637 | ADD_BLOCK (block_list, tmp_dirname); |
638 | |
639 | __set_errno (0); |
640 | ret = getcwd (resolved_dirname, path_max); |
641 | if (ret != NULL || errno != ERANGE) |
642 | break; |
643 | |
644 | path_max += path_max / 2; |
645 | path_max += PATH_INCR; |
646 | } |
647 | |
648 | if (ret == NULL) |
649 | /* We cannot get the current working directory. Don't signal an |
650 | error but simply return the default string. */ |
651 | goto return_untranslated; |
652 | |
653 | stpcpy (stpcpy (strchr (resolved_dirname, '\0'), "/" ), dirname); |
654 | dirname = resolved_dirname; |
655 | } |
656 | #ifndef IN_LIBGLOCALE |
657 | } |
658 | #endif |
659 | |
660 | /* Now determine the symbolic name of CATEGORY and its value. */ |
661 | #ifndef CATEGORYNAME_INITIALIZED |
662 | categoryname = category_to_name (category); |
663 | #endif |
664 | #ifdef IN_LIBGLOCALE |
665 | categoryvalue = guess_category_value (category, categoryname, localename); |
666 | #else |
667 | categoryvalue = guess_category_value (category, categoryname); |
668 | #endif |
669 | |
670 | domainname_len = strlen (domainname); |
671 | xdomainname = (char *) alloca (strlen (categoryname) |
672 | + domainname_len + 5); |
673 | ADD_BLOCK (block_list, xdomainname); |
674 | |
675 | stpcpy ((char *) mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/" ), |
676 | domainname, domainname_len), |
677 | ".mo" ); |
678 | |
679 | /* Creating working area. */ |
680 | single_locale = (char *) alloca (strlen (categoryvalue) + 1); |
681 | ADD_BLOCK (block_list, single_locale); |
682 | |
683 | |
684 | /* Search for the given string. This is a loop because we perhaps |
685 | got an ordered list of languages to consider for the translation. */ |
686 | while (1) |
687 | { |
688 | /* Make CATEGORYVALUE point to the next element of the list. */ |
689 | while (categoryvalue[0] != '\0' && categoryvalue[0] == ':') |
690 | ++categoryvalue; |
691 | if (categoryvalue[0] == '\0') |
692 | { |
693 | /* The whole contents of CATEGORYVALUE has been searched but |
694 | no valid entry has been found. We solve this situation |
695 | by implicitly appending a "C" entry, i.e. no translation |
696 | will take place. */ |
697 | single_locale[0] = 'C'; |
698 | single_locale[1] = '\0'; |
699 | } |
700 | else |
701 | { |
702 | char *cp = single_locale; |
703 | while (categoryvalue[0] != '\0' && categoryvalue[0] != ':') |
704 | *cp++ = *categoryvalue++; |
705 | *cp = '\0'; |
706 | |
707 | /* When this is a SUID binary we must not allow accessing files |
708 | outside the dedicated directories. */ |
709 | if (ENABLE_SECURE && IS_PATH_WITH_DIR (single_locale)) |
710 | /* Ingore this entry. */ |
711 | continue; |
712 | } |
713 | |
714 | /* If the current locale value is C (or POSIX) we don't load a |
715 | domain. Return the MSGID. */ |
716 | if (strcmp (single_locale, "C" ) == 0 |
717 | || strcmp (single_locale, "POSIX" ) == 0) |
718 | break; |
719 | |
720 | /* Find structure describing the message catalog matching the |
721 | DOMAINNAME and CATEGORY. */ |
722 | domain = _nl_find_domain (dirname, single_locale, xdomainname, binding); |
723 | |
724 | if (domain != NULL) |
725 | { |
726 | #if defined IN_LIBGLOCALE |
727 | retval = _nl_find_msg (domain, binding, encoding, msgid1, &retlen); |
728 | #else |
729 | retval = _nl_find_msg (domain, binding, msgid1, 1, &retlen); |
730 | #endif |
731 | |
732 | if (retval == NULL) |
733 | { |
734 | int cnt; |
735 | |
736 | for (cnt = 0; domain->successor[cnt] != NULL; ++cnt) |
737 | { |
738 | #if defined IN_LIBGLOCALE |
739 | retval = _nl_find_msg (domain->successor[cnt], binding, |
740 | encoding, msgid1, &retlen); |
741 | #else |
742 | retval = _nl_find_msg (domain->successor[cnt], binding, |
743 | msgid1, 1, &retlen); |
744 | #endif |
745 | |
746 | /* Resource problems are not fatal, instead we return no |
747 | translation. */ |
748 | if (__builtin_expect (retval == (char *) -1, 0)) |
749 | goto return_untranslated; |
750 | |
751 | if (retval != NULL) |
752 | { |
753 | domain = domain->successor[cnt]; |
754 | break; |
755 | } |
756 | } |
757 | } |
758 | |
759 | /* Returning -1 means that some resource problem exists |
760 | (likely memory) and that the strings could not be |
761 | converted. Return the original strings. */ |
762 | if (__builtin_expect (retval == (char *) -1, 0)) |
763 | break; |
764 | |
765 | if (retval != NULL) |
766 | { |
767 | /* Found the translation of MSGID1 in domain DOMAIN: |
768 | starting at RETVAL, RETLEN bytes. */ |
769 | FREE_BLOCKS (block_list); |
770 | if (foundp == NULL) |
771 | { |
772 | /* Create a new entry and add it to the search tree. */ |
773 | size_t msgid_len; |
774 | size_t size; |
775 | struct known_translation_t *newp; |
776 | |
777 | msgid_len = strlen (msgid1) + 1; |
778 | size = offsetof (struct known_translation_t, msgid) |
779 | + msgid_len + domainname_len + 1; |
780 | #ifdef HAVE_PER_THREAD_LOCALE |
781 | size += strlen (localename) + 1; |
782 | #endif |
783 | newp = (struct known_translation_t *) malloc (size); |
784 | if (newp != NULL) |
785 | { |
786 | char *new_domainname; |
787 | #ifdef HAVE_PER_THREAD_LOCALE |
788 | char *new_localename; |
789 | #endif |
790 | |
791 | new_domainname = |
792 | (char *) mempcpy (newp->msgid.appended, msgid1, |
793 | msgid_len); |
794 | memcpy (new_domainname, domainname, domainname_len + 1); |
795 | #ifdef HAVE_PER_THREAD_LOCALE |
796 | new_localename = new_domainname + domainname_len + 1; |
797 | strcpy (new_localename, localename); |
798 | #endif |
799 | newp->domainname = new_domainname; |
800 | newp->category = category; |
801 | #ifdef HAVE_PER_THREAD_LOCALE |
802 | newp->localename = new_localename; |
803 | #endif |
804 | #ifdef IN_LIBGLOCALE |
805 | newp->encoding = encoding; |
806 | #endif |
807 | newp->counter = _nl_msg_cat_cntr; |
808 | newp->domain = domain; |
809 | newp->translation = retval; |
810 | newp->translation_length = retlen; |
811 | |
812 | gl_rwlock_wrlock (tree_lock); |
813 | |
814 | /* Insert the entry in the search tree. */ |
815 | foundp = (struct known_translation_t **) |
816 | tsearch (newp, &root, transcmp); |
817 | |
818 | gl_rwlock_unlock (tree_lock); |
819 | |
820 | if (foundp == NULL |
821 | || __builtin_expect (*foundp != newp, 0)) |
822 | /* The insert failed. */ |
823 | free (newp); |
824 | } |
825 | } |
826 | else |
827 | { |
828 | /* We can update the existing entry. */ |
829 | (*foundp)->counter = _nl_msg_cat_cntr; |
830 | (*foundp)->domain = domain; |
831 | (*foundp)->translation = retval; |
832 | (*foundp)->translation_length = retlen; |
833 | } |
834 | |
835 | __set_errno (saved_errno); |
836 | |
837 | /* Now deal with plural. */ |
838 | if (plural) |
839 | retval = plural_lookup (domain, n, retval, retlen); |
840 | |
841 | gl_rwlock_unlock (_nl_state_lock); |
842 | #ifdef _LIBC |
843 | __libc_rwlock_unlock (__libc_setlocale_lock); |
844 | #endif |
845 | return retval; |
846 | } |
847 | } |
848 | } |
849 | |
850 | return_untranslated: |
851 | /* Return the untranslated MSGID. */ |
852 | FREE_BLOCKS (block_list); |
853 | gl_rwlock_unlock (_nl_state_lock); |
854 | #ifdef _LIBC |
855 | __libc_rwlock_unlock (__libc_setlocale_lock); |
856 | #endif |
857 | #ifndef _LIBC |
858 | if (!ENABLE_SECURE) |
859 | { |
860 | extern void _nl_log_untranslated (const char *logfilename, |
861 | const char *domainname, |
862 | const char *msgid1, const char *msgid2, |
863 | int plural); |
864 | const char *logfilename = getenv ("GETTEXT_LOG_UNTRANSLATED" ); |
865 | |
866 | if (logfilename != NULL && logfilename[0] != '\0') |
867 | _nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural); |
868 | } |
869 | #endif |
870 | __set_errno (saved_errno); |
871 | return (plural == 0 |
872 | ? (char *) msgid1 |
873 | /* Use the Germanic plural rule. */ |
874 | : n == 1 ? (char *) msgid1 : (char *) msgid2); |
875 | } |
876 | |
877 | |
878 | /* Look up the translation of msgid within DOMAIN_FILE and DOMAINBINDING. |
879 | Return it if found. Return NULL if not found or in case of a conversion |
880 | failure (problem in the particular message catalog). Return (char *) -1 |
881 | in case of a memory allocation failure during conversion (only if |
882 | ENCODING != NULL resp. CONVERT == true). */ |
883 | char * |
884 | internal_function |
885 | #ifdef IN_LIBGLOCALE |
886 | _nl_find_msg (struct loaded_l10nfile *domain_file, |
887 | struct binding *domainbinding, const char *encoding, |
888 | const char *msgid, |
889 | size_t *lengthp) |
890 | #else |
891 | _nl_find_msg (struct loaded_l10nfile *domain_file, |
892 | struct binding *domainbinding, |
893 | const char *msgid, int convert, |
894 | size_t *lengthp) |
895 | #endif |
896 | { |
897 | struct loaded_domain *domain; |
898 | nls_uint32 nstrings; |
899 | size_t act; |
900 | char *result; |
901 | size_t resultlen; |
902 | |
903 | if (domain_file->decided <= 0) |
904 | _nl_load_domain (domain_file, domainbinding); |
905 | |
906 | if (domain_file->data == NULL) |
907 | return NULL; |
908 | |
909 | domain = (struct loaded_domain *) domain_file->data; |
910 | |
911 | nstrings = domain->nstrings; |
912 | |
913 | /* Locate the MSGID and its translation. */ |
914 | if (domain->hash_tab != NULL) |
915 | { |
916 | /* Use the hashing table. */ |
917 | nls_uint32 len = strlen (msgid); |
918 | nls_uint32 hash_val = __hash_string (msgid); |
919 | nls_uint32 idx = hash_val % domain->hash_size; |
920 | nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2)); |
921 | |
922 | while (1) |
923 | { |
924 | nls_uint32 nstr = |
925 | W (domain->must_swap_hash_tab, domain->hash_tab[idx]); |
926 | |
927 | if (nstr == 0) |
928 | /* Hash table entry is empty. */ |
929 | return NULL; |
930 | |
931 | nstr--; |
932 | |
933 | /* Compare msgid with the original string at index nstr. |
934 | We compare the lengths with >=, not ==, because plural entries |
935 | are represented by strings with an embedded NUL. */ |
936 | if (nstr < nstrings |
937 | ? W (domain->must_swap, domain->orig_tab[nstr].length) >= len |
938 | && (strcmp (msgid, |
939 | domain->data + W (domain->must_swap, |
940 | domain->orig_tab[nstr].offset)) |
941 | == 0) |
942 | : domain->orig_sysdep_tab[nstr - nstrings].length > len |
943 | && (strcmp (msgid, |
944 | domain->orig_sysdep_tab[nstr - nstrings].pointer) |
945 | == 0)) |
946 | { |
947 | act = nstr; |
948 | goto found; |
949 | } |
950 | |
951 | if (idx >= domain->hash_size - incr) |
952 | idx -= domain->hash_size - incr; |
953 | else |
954 | idx += incr; |
955 | } |
956 | /* NOTREACHED */ |
957 | } |
958 | else |
959 | { |
960 | /* Try the default method: binary search in the sorted array of |
961 | messages. */ |
962 | size_t top, bottom; |
963 | |
964 | bottom = 0; |
965 | top = nstrings; |
966 | while (bottom < top) |
967 | { |
968 | int cmp_val; |
969 | |
970 | act = (bottom + top) / 2; |
971 | cmp_val = strcmp (msgid, (domain->data |
972 | + W (domain->must_swap, |
973 | domain->orig_tab[act].offset))); |
974 | if (cmp_val < 0) |
975 | top = act; |
976 | else if (cmp_val > 0) |
977 | bottom = act + 1; |
978 | else |
979 | goto found; |
980 | } |
981 | /* No translation was found. */ |
982 | return NULL; |
983 | } |
984 | |
985 | found: |
986 | /* The translation was found at index ACT. If we have to convert the |
987 | string to use a different character set, this is the time. */ |
988 | if (act < nstrings) |
989 | { |
990 | result = (char *) |
991 | (domain->data + W (domain->must_swap, domain->trans_tab[act].offset)); |
992 | resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1; |
993 | } |
994 | else |
995 | { |
996 | result = (char *) domain->trans_sysdep_tab[act - nstrings].pointer; |
997 | resultlen = domain->trans_sysdep_tab[act - nstrings].length; |
998 | } |
999 | |
1000 | #if defined _LIBC || HAVE_ICONV |
1001 | # ifdef IN_LIBGLOCALE |
1002 | if (encoding != NULL) |
1003 | # else |
1004 | if (convert) |
1005 | # endif |
1006 | { |
1007 | /* We are supposed to do a conversion. */ |
1008 | # ifndef IN_LIBGLOCALE |
1009 | const char *encoding = get_output_charset (domainbinding); |
1010 | # endif |
1011 | size_t nconversions; |
1012 | struct converted_domain *convd; |
1013 | size_t i; |
1014 | |
1015 | /* Protect against reallocation of the table. */ |
1016 | gl_rwlock_rdlock (domain->conversions_lock); |
1017 | |
1018 | /* Search whether a table with converted translations for this |
1019 | encoding has already been allocated. */ |
1020 | nconversions = domain->nconversions; |
1021 | convd = NULL; |
1022 | |
1023 | for (i = nconversions; i > 0; ) |
1024 | { |
1025 | i--; |
1026 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) |
1027 | { |
1028 | convd = &domain->conversions[i]; |
1029 | break; |
1030 | } |
1031 | } |
1032 | |
1033 | gl_rwlock_unlock (domain->conversions_lock); |
1034 | |
1035 | if (convd == NULL) |
1036 | { |
1037 | /* We have to allocate a new conversions table. */ |
1038 | gl_rwlock_wrlock (domain->conversions_lock); |
1039 | nconversions = domain->nconversions; |
1040 | |
1041 | /* Maybe in the meantime somebody added the translation. |
1042 | Recheck. */ |
1043 | for (i = nconversions; i > 0; ) |
1044 | { |
1045 | i--; |
1046 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) |
1047 | { |
1048 | convd = &domain->conversions[i]; |
1049 | goto found_convd; |
1050 | } |
1051 | } |
1052 | |
1053 | { |
1054 | /* Allocate a table for the converted translations for this |
1055 | encoding. */ |
1056 | struct converted_domain *new_conversions = |
1057 | (struct converted_domain *) |
1058 | (domain->conversions != NULL |
1059 | ? realloc (domain->conversions, |
1060 | (nconversions + 1) * sizeof (struct converted_domain)) |
1061 | : malloc ((nconversions + 1) * sizeof (struct converted_domain))); |
1062 | |
1063 | if (__builtin_expect (new_conversions == NULL, 0)) |
1064 | { |
1065 | /* Nothing we can do, no more memory. We cannot use the |
1066 | translation because it might be encoded incorrectly. */ |
1067 | unlock_fail: |
1068 | gl_rwlock_unlock (domain->conversions_lock); |
1069 | return (char *) -1; |
1070 | } |
1071 | |
1072 | domain->conversions = new_conversions; |
1073 | |
1074 | /* Copy the 'encoding' string to permanent storage. */ |
1075 | encoding = strdup (encoding); |
1076 | if (__builtin_expect (encoding == NULL, 0)) |
1077 | /* Nothing we can do, no more memory. We cannot use the |
1078 | translation because it might be encoded incorrectly. */ |
1079 | goto unlock_fail; |
1080 | |
1081 | convd = &new_conversions[nconversions]; |
1082 | convd->encoding = encoding; |
1083 | |
1084 | /* Find out about the character set the file is encoded with. |
1085 | This can be found (in textual form) in the entry "". If this |
1086 | entry does not exist or if this does not contain the 'charset=' |
1087 | information, we will assume the charset matches the one the |
1088 | current locale and we don't have to perform any conversion. */ |
1089 | # ifdef _LIBC |
1090 | convd->conv = (__gconv_t) -1; |
1091 | # else |
1092 | # if HAVE_ICONV |
1093 | convd->conv = (iconv_t) -1; |
1094 | # endif |
1095 | # endif |
1096 | { |
1097 | char *nullentry; |
1098 | size_t nullentrylen; |
1099 | |
1100 | /* Get the header entry. This is a recursion, but it doesn't |
1101 | reallocate domain->conversions because we pass |
1102 | encoding = NULL or convert = 0, respectively. */ |
1103 | nullentry = |
1104 | # ifdef IN_LIBGLOCALE |
1105 | _nl_find_msg (domain_file, domainbinding, NULL, "" , |
1106 | &nullentrylen); |
1107 | # else |
1108 | _nl_find_msg (domain_file, domainbinding, "" , 0, &nullentrylen); |
1109 | # endif |
1110 | |
1111 | /* Resource problems are fatal. If we continue onwards we will |
1112 | only attempt to calloc a new conv_tab and fail later. */ |
1113 | if (__builtin_expect (nullentry == (char *) -1, 0)) |
1114 | return (char *) -1; |
1115 | |
1116 | if (nullentry != NULL) |
1117 | { |
1118 | const char *charsetstr; |
1119 | |
1120 | charsetstr = strstr (nullentry, "charset=" ); |
1121 | if (charsetstr != NULL) |
1122 | { |
1123 | size_t len; |
1124 | char *charset; |
1125 | const char *outcharset; |
1126 | |
1127 | charsetstr += strlen ("charset=" ); |
1128 | len = strcspn (charsetstr, " \t\n" ); |
1129 | |
1130 | charset = (char *) alloca (len + 1); |
1131 | # if defined _LIBC || HAVE_MEMPCPY |
1132 | *((char *) mempcpy (charset, charsetstr, len)) = '\0'; |
1133 | # else |
1134 | memcpy (charset, charsetstr, len); |
1135 | charset[len] = '\0'; |
1136 | # endif |
1137 | |
1138 | outcharset = encoding; |
1139 | |
1140 | # ifdef _LIBC |
1141 | /* We always want to use transliteration. */ |
1142 | outcharset = norm_add_slashes (outcharset, "TRANSLIT" ); |
1143 | charset = norm_add_slashes (charset, "" ); |
1144 | int r = __gconv_open (outcharset, charset, &convd->conv, |
1145 | GCONV_AVOID_NOCONV); |
1146 | if (__builtin_expect (r != __GCONV_OK, 0)) |
1147 | { |
1148 | /* If the output encoding is the same there is |
1149 | nothing to do. Otherwise do not use the |
1150 | translation at all. */ |
1151 | if (__builtin_expect (r != __GCONV_NULCONV, 1)) |
1152 | { |
1153 | gl_rwlock_unlock (domain->conversions_lock); |
1154 | free ((char *) encoding); |
1155 | return NULL; |
1156 | } |
1157 | |
1158 | convd->conv = (__gconv_t) -1; |
1159 | } |
1160 | # else |
1161 | # if HAVE_ICONV |
1162 | /* When using GNU libc >= 2.2 or GNU libiconv >= 1.5, |
1163 | we want to use transliteration. */ |
1164 | # if (((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2) \ |
1165 | && !defined __UCLIBC__) \ |
1166 | || _LIBICONV_VERSION >= 0x0105 |
1167 | if (strchr (outcharset, '/') == NULL) |
1168 | { |
1169 | char *tmp; |
1170 | |
1171 | len = strlen (outcharset); |
1172 | tmp = (char *) alloca (len + 10 + 1); |
1173 | memcpy (tmp, outcharset, len); |
1174 | memcpy (tmp + len, "//TRANSLIT" , 10 + 1); |
1175 | outcharset = tmp; |
1176 | |
1177 | convd->conv = iconv_open (outcharset, charset); |
1178 | |
1179 | freea (outcharset); |
1180 | } |
1181 | else |
1182 | # endif |
1183 | convd->conv = iconv_open (outcharset, charset); |
1184 | # endif |
1185 | # endif |
1186 | |
1187 | freea (charset); |
1188 | } |
1189 | } |
1190 | } |
1191 | convd->conv_tab = NULL; |
1192 | /* Here domain->conversions is still == new_conversions. */ |
1193 | domain->nconversions++; |
1194 | } |
1195 | |
1196 | found_convd: |
1197 | gl_rwlock_unlock (domain->conversions_lock); |
1198 | } |
1199 | |
1200 | if ( |
1201 | # ifdef _LIBC |
1202 | convd->conv != (__gconv_t) -1 |
1203 | # else |
1204 | # if HAVE_ICONV |
1205 | convd->conv != (iconv_t) -1 |
1206 | # endif |
1207 | # endif |
1208 | ) |
1209 | { |
1210 | /* We are supposed to do a conversion. First allocate an |
1211 | appropriate table with the same structure as the table |
1212 | of translations in the file, where we can put the pointers |
1213 | to the converted strings in. |
1214 | There is a slight complication with plural entries. They |
1215 | are represented by consecutive NUL terminated strings. We |
1216 | handle this case by converting RESULTLEN bytes, including |
1217 | NULs. */ |
1218 | |
1219 | /* This lock primarily protects the memory management variables |
1220 | freemem, freemem_size. It also protects write accesses to |
1221 | convd->conv_tab. It's not worth using a separate lock (such |
1222 | as domain->conversions_lock) for this purpose, because when |
1223 | modifying convd->conv_tab, we also need to lock freemem, |
1224 | freemem_size for most of the time. */ |
1225 | __libc_lock_define_initialized (static, lock) |
1226 | |
1227 | if (__builtin_expect (convd->conv_tab == NULL, 0)) |
1228 | { |
1229 | __libc_lock_lock (lock); |
1230 | if (convd->conv_tab == NULL) |
1231 | { |
1232 | convd->conv_tab = |
1233 | (char **) calloc (nstrings + domain->n_sysdep_strings, |
1234 | sizeof (char *)); |
1235 | if (convd->conv_tab != NULL) |
1236 | goto not_translated_yet; |
1237 | /* Mark that we didn't succeed allocating a table. */ |
1238 | convd->conv_tab = (char **) -1; |
1239 | } |
1240 | __libc_lock_unlock (lock); |
1241 | } |
1242 | |
1243 | if (__builtin_expect (convd->conv_tab == (char **) -1, 0)) |
1244 | /* Nothing we can do, no more memory. We cannot use the |
1245 | translation because it might be encoded incorrectly. */ |
1246 | return (char *) -1; |
1247 | |
1248 | if (convd->conv_tab[act] == NULL) |
1249 | { |
1250 | /* We haven't used this string so far, so it is not |
1251 | translated yet. Do this now. */ |
1252 | /* We use a bit more efficient memory handling. |
1253 | We allocate always larger blocks which get used over |
1254 | time. This is faster than many small allocations. */ |
1255 | # define INITIAL_BLOCK_SIZE 4080 |
1256 | static unsigned char *freemem; |
1257 | static size_t freemem_size; |
1258 | |
1259 | const unsigned char *inbuf; |
1260 | unsigned char *outbuf; |
1261 | int malloc_count; |
1262 | # ifndef _LIBC |
1263 | transmem_block_t *transmem_list; |
1264 | # endif |
1265 | |
1266 | __libc_lock_lock (lock); |
1267 | not_translated_yet: |
1268 | |
1269 | inbuf = (const unsigned char *) result; |
1270 | outbuf = freemem + sizeof (size_t); |
1271 | # ifndef _LIBC |
1272 | transmem_list = NULL; |
1273 | # endif |
1274 | |
1275 | malloc_count = 0; |
1276 | while (1) |
1277 | { |
1278 | transmem_block_t *newmem; |
1279 | # ifdef _LIBC |
1280 | size_t non_reversible; |
1281 | int res; |
1282 | |
1283 | if (freemem_size < sizeof (size_t)) |
1284 | goto resize_freemem; |
1285 | |
1286 | res = __gconv (convd->conv, |
1287 | &inbuf, inbuf + resultlen, |
1288 | &outbuf, |
1289 | outbuf + freemem_size - sizeof (size_t), |
1290 | &non_reversible); |
1291 | |
1292 | if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT) |
1293 | break; |
1294 | |
1295 | if (res != __GCONV_FULL_OUTPUT) |
1296 | { |
1297 | /* We should not use the translation at all, it |
1298 | is incorrectly encoded. */ |
1299 | __libc_lock_unlock (lock); |
1300 | return NULL; |
1301 | } |
1302 | |
1303 | inbuf = (const unsigned char *) result; |
1304 | # else |
1305 | # if HAVE_ICONV |
1306 | const char *inptr = (const char *) inbuf; |
1307 | size_t inleft = resultlen; |
1308 | char *outptr = (char *) outbuf; |
1309 | size_t outleft; |
1310 | |
1311 | if (freemem_size < sizeof (size_t)) |
1312 | goto resize_freemem; |
1313 | |
1314 | outleft = freemem_size - sizeof (size_t); |
1315 | if (iconv (convd->conv, |
1316 | (ICONV_CONST char **) &inptr, &inleft, |
1317 | &outptr, &outleft) |
1318 | != (size_t) (-1)) |
1319 | { |
1320 | outbuf = (unsigned char *) outptr; |
1321 | break; |
1322 | } |
1323 | if (errno != E2BIG) |
1324 | { |
1325 | __libc_lock_unlock (lock); |
1326 | return NULL; |
1327 | } |
1328 | # endif |
1329 | # endif |
1330 | |
1331 | resize_freemem: |
1332 | /* We must allocate a new buffer or resize the old one. */ |
1333 | if (malloc_count > 0) |
1334 | { |
1335 | ++malloc_count; |
1336 | freemem_size = malloc_count * INITIAL_BLOCK_SIZE; |
1337 | newmem = (transmem_block_t *) realloc (transmem_list, |
1338 | freemem_size); |
1339 | # ifdef _LIBC |
1340 | if (newmem != NULL) |
1341 | transmem_list = newmem; |
1342 | else |
1343 | { |
1344 | struct transmem_list *old = transmem_list; |
1345 | |
1346 | transmem_list = transmem_list->next; |
1347 | free (old); |
1348 | } |
1349 | # endif |
1350 | } |
1351 | else |
1352 | { |
1353 | malloc_count = 1; |
1354 | freemem_size = INITIAL_BLOCK_SIZE; |
1355 | newmem = (transmem_block_t *) malloc (freemem_size); |
1356 | # ifdef _LIBC |
1357 | if (newmem != NULL) |
1358 | { |
1359 | /* Add the block to the list of blocks we have to free |
1360 | at some point. */ |
1361 | newmem->next = transmem_list; |
1362 | transmem_list = newmem; |
1363 | } |
1364 | /* Fall through and return -1. */ |
1365 | # endif |
1366 | } |
1367 | if (__builtin_expect (newmem == NULL, 0)) |
1368 | { |
1369 | freemem = NULL; |
1370 | freemem_size = 0; |
1371 | __libc_lock_unlock (lock); |
1372 | return (char *) -1; |
1373 | } |
1374 | |
1375 | # ifdef _LIBC |
1376 | freemem = (unsigned char *) newmem->data; |
1377 | freemem_size -= offsetof (struct transmem_list, data); |
1378 | # else |
1379 | transmem_list = newmem; |
1380 | freemem = newmem; |
1381 | # endif |
1382 | |
1383 | outbuf = freemem + sizeof (size_t); |
1384 | } |
1385 | |
1386 | /* We have now in our buffer a converted string. Put this |
1387 | into the table of conversions. */ |
1388 | *(size_t *) freemem = outbuf - freemem - sizeof (size_t); |
1389 | convd->conv_tab[act] = (char *) freemem; |
1390 | /* Shrink freemem, but keep it aligned. */ |
1391 | freemem_size -= outbuf - freemem; |
1392 | freemem = outbuf; |
1393 | freemem += freemem_size & (alignof (size_t) - 1); |
1394 | freemem_size = freemem_size & ~ (alignof (size_t) - 1); |
1395 | |
1396 | __libc_lock_unlock (lock); |
1397 | } |
1398 | |
1399 | /* Now convd->conv_tab[act] contains the translation of all |
1400 | the plural variants. */ |
1401 | result = convd->conv_tab[act] + sizeof (size_t); |
1402 | resultlen = *(size_t *) convd->conv_tab[act]; |
1403 | } |
1404 | } |
1405 | |
1406 | /* The result string is converted. */ |
1407 | |
1408 | #endif /* _LIBC || HAVE_ICONV */ |
1409 | |
1410 | *lengthp = resultlen; |
1411 | return result; |
1412 | } |
1413 | |
1414 | |
1415 | /* Look up a plural variant. */ |
1416 | static char * |
1417 | internal_function |
1418 | plural_lookup (struct loaded_l10nfile *domain, unsigned long int n, |
1419 | const char *translation, size_t translation_len) |
1420 | { |
1421 | struct loaded_domain *domaindata = (struct loaded_domain *) domain->data; |
1422 | unsigned long int index; |
1423 | const char *p; |
1424 | |
1425 | index = plural_eval (domaindata->plural, n); |
1426 | if (index >= domaindata->nplurals) |
1427 | /* This should never happen. It means the plural expression and the |
1428 | given maximum value do not match. */ |
1429 | index = 0; |
1430 | |
1431 | /* Skip INDEX strings at TRANSLATION. */ |
1432 | p = translation; |
1433 | while (index-- > 0) |
1434 | { |
1435 | #ifdef _LIBC |
1436 | p = __rawmemchr (p, '\0'); |
1437 | #else |
1438 | p = strchr (p, '\0'); |
1439 | #endif |
1440 | /* And skip over the NUL byte. */ |
1441 | p++; |
1442 | |
1443 | if (p >= translation + translation_len) |
1444 | /* This should never happen. It means the plural expression |
1445 | evaluated to a value larger than the number of variants |
1446 | available for MSGID1. */ |
1447 | return (char *) translation; |
1448 | } |
1449 | return (char *) p; |
1450 | } |
1451 | |
1452 | #ifndef _LIBC |
1453 | /* Return string representation of locale CATEGORY. */ |
1454 | static const char * |
1455 | internal_function |
1456 | category_to_name (int category) |
1457 | { |
1458 | const char *retval; |
1459 | |
1460 | switch (category) |
1461 | { |
1462 | #ifdef LC_COLLATE |
1463 | case LC_COLLATE: |
1464 | retval = "LC_COLLATE" ; |
1465 | break; |
1466 | #endif |
1467 | #ifdef LC_CTYPE |
1468 | case LC_CTYPE: |
1469 | retval = "LC_CTYPE" ; |
1470 | break; |
1471 | #endif |
1472 | #ifdef LC_MONETARY |
1473 | case LC_MONETARY: |
1474 | retval = "LC_MONETARY" ; |
1475 | break; |
1476 | #endif |
1477 | #ifdef LC_NUMERIC |
1478 | case LC_NUMERIC: |
1479 | retval = "LC_NUMERIC" ; |
1480 | break; |
1481 | #endif |
1482 | #ifdef LC_TIME |
1483 | case LC_TIME: |
1484 | retval = "LC_TIME" ; |
1485 | break; |
1486 | #endif |
1487 | #ifdef LC_MESSAGES |
1488 | case LC_MESSAGES: |
1489 | retval = "LC_MESSAGES" ; |
1490 | break; |
1491 | #endif |
1492 | #ifdef LC_RESPONSE |
1493 | case LC_RESPONSE: |
1494 | retval = "LC_RESPONSE" ; |
1495 | break; |
1496 | #endif |
1497 | #ifdef LC_ALL |
1498 | case LC_ALL: |
1499 | /* This might not make sense but is perhaps better than any other |
1500 | value. */ |
1501 | retval = "LC_ALL" ; |
1502 | break; |
1503 | #endif |
1504 | default: |
1505 | /* If you have a better idea for a default value let me know. */ |
1506 | retval = "LC_XXX" ; |
1507 | } |
1508 | |
1509 | return retval; |
1510 | } |
1511 | #endif |
1512 | |
1513 | /* Guess value of current locale from value of the environment variables |
1514 | or system-dependent defaults. */ |
1515 | static const char * |
1516 | internal_function |
1517 | #ifdef IN_LIBGLOCALE |
1518 | guess_category_value (int category, const char *categoryname, |
1519 | const char *locale) |
1520 | |
1521 | #else |
1522 | guess_category_value (int category, const char *categoryname) |
1523 | #endif |
1524 | { |
1525 | const char *language; |
1526 | #ifndef IN_LIBGLOCALE |
1527 | const char *locale; |
1528 | # ifndef _LIBC |
1529 | const char *language_default; |
1530 | int locale_defaulted; |
1531 | # endif |
1532 | #endif |
1533 | |
1534 | /* We use the settings in the following order: |
1535 | 1. The value of the environment variable 'LANGUAGE'. This is a GNU |
1536 | extension. Its value can be a colon-separated list of locale names. |
1537 | 2. The value of the environment variable 'LC_ALL', 'LC_xxx', or 'LANG'. |
1538 | More precisely, the first among these that is set to a non-empty value. |
1539 | This is how POSIX specifies it. The value is a single locale name. |
1540 | 3. A system-dependent preference list of languages. Its value can be a |
1541 | colon-separated list of locale names. |
1542 | 4. A system-dependent default locale name. |
1543 | This way: |
1544 | - System-dependent settings can be overridden by environment variables. |
1545 | - If the system provides both a list of languages and a default locale, |
1546 | the former is used. */ |
1547 | |
1548 | #ifndef IN_LIBGLOCALE |
1549 | /* Fetch the locale name, through the POSIX method of looking to `LC_ALL', |
1550 | `LC_xxx', and `LANG'. On some systems this can be done by the |
1551 | `setlocale' function itself. */ |
1552 | # ifdef _LIBC |
1553 | locale = __current_locale_name (category); |
1554 | # else |
1555 | locale_defaulted = 0; |
1556 | # if HAVE_USELOCALE |
1557 | locale = _nl_locale_name_thread_unsafe (category, categoryname); |
1558 | if (locale == NULL) |
1559 | # endif |
1560 | { |
1561 | locale = _nl_locale_name_posix (category, categoryname); |
1562 | if (locale == NULL) |
1563 | { |
1564 | locale = _nl_locale_name_default (); |
1565 | locale_defaulted = 1; |
1566 | } |
1567 | } |
1568 | # endif |
1569 | #endif |
1570 | |
1571 | /* Ignore LANGUAGE and its system-dependent analogon if the locale is set |
1572 | to "C" because |
1573 | 1. "C" locale usually uses the ASCII encoding, and most international |
1574 | messages use non-ASCII characters. These characters get displayed |
1575 | as question marks (if using glibc's iconv()) or as invalid 8-bit |
1576 | characters (because other iconv()s refuse to convert most non-ASCII |
1577 | characters to ASCII). In any case, the output is ugly. |
1578 | 2. The precise output of some programs in the "C" locale is specified |
1579 | by POSIX and should not depend on environment variables like |
1580 | "LANGUAGE" or system-dependent information. We allow such programs |
1581 | to use gettext(). */ |
1582 | if (strcmp (locale, "C" ) == 0) |
1583 | return locale; |
1584 | |
1585 | /* The highest priority value is the value of the 'LANGUAGE' environment |
1586 | variable. */ |
1587 | language = getenv ("LANGUAGE" ); |
1588 | if (language != NULL && language[0] != '\0') |
1589 | return language; |
1590 | #if !defined IN_LIBGLOCALE && !defined _LIBC |
1591 | /* The next priority value is the locale name, if not defaulted. */ |
1592 | if (locale_defaulted) |
1593 | { |
1594 | /* The next priority value is the default language preferences list. */ |
1595 | language_default = _nl_language_preferences_default (); |
1596 | if (language_default != NULL) |
1597 | return language_default; |
1598 | } |
1599 | /* The least priority value is the locale name, if defaulted. */ |
1600 | #endif |
1601 | return locale; |
1602 | } |
1603 | |
1604 | #if (defined _LIBC || HAVE_ICONV) && !defined IN_LIBGLOCALE |
1605 | /* Returns the output charset. */ |
1606 | static const char * |
1607 | internal_function |
1608 | get_output_charset (struct binding *domainbinding) |
1609 | { |
1610 | /* The output charset should normally be determined by the locale. But |
1611 | sometimes the locale is not used or not correctly set up, so we provide |
1612 | a possibility for the user to override this: the OUTPUT_CHARSET |
1613 | environment variable. Moreover, the value specified through |
1614 | bind_textdomain_codeset overrides both. */ |
1615 | if (domainbinding != NULL && domainbinding->codeset != NULL) |
1616 | return domainbinding->codeset; |
1617 | else |
1618 | { |
1619 | /* For speed reasons, we look at the value of OUTPUT_CHARSET only |
1620 | once. This is a user variable that is not supposed to change |
1621 | during a program run. */ |
1622 | static char *output_charset_cache; |
1623 | static int output_charset_cached; |
1624 | |
1625 | if (!output_charset_cached) |
1626 | { |
1627 | const char *value = getenv ("OUTPUT_CHARSET" ); |
1628 | |
1629 | if (value != NULL && value[0] != '\0') |
1630 | { |
1631 | size_t len = strlen (value) + 1; |
1632 | char *value_copy = (char *) malloc (len); |
1633 | |
1634 | if (value_copy != NULL) |
1635 | memcpy (value_copy, value, len); |
1636 | output_charset_cache = value_copy; |
1637 | } |
1638 | output_charset_cached = 1; |
1639 | } |
1640 | |
1641 | if (output_charset_cache != NULL) |
1642 | return output_charset_cache; |
1643 | else |
1644 | { |
1645 | # ifdef _LIBC |
1646 | return _NL_CURRENT (LC_CTYPE, CODESET); |
1647 | # else |
1648 | # if HAVE_ICONV |
1649 | return locale_charset (); |
1650 | # endif |
1651 | # endif |
1652 | } |
1653 | } |
1654 | } |
1655 | #endif |
1656 | |
1657 | /* @@ begin of epilog @@ */ |
1658 | |
1659 | /* We don't want libintl.a to depend on any other library. So we |
1660 | avoid the non-standard function stpcpy. In GNU C Library this |
1661 | function is available, though. Also allow the symbol HAVE_STPCPY |
1662 | to be defined. */ |
1663 | #if !_LIBC && !HAVE_STPCPY |
1664 | static char * |
1665 | stpcpy (char *dest, const char *src) |
1666 | { |
1667 | while ((*dest++ = *src++) != '\0') |
1668 | /* Do nothing. */ ; |
1669 | return dest - 1; |
1670 | } |
1671 | #endif |
1672 | |
1673 | #if !_LIBC && !HAVE_MEMPCPY |
1674 | static void * |
1675 | mempcpy (void *dest, const void *src, size_t n) |
1676 | { |
1677 | return (void *) ((char *) memcpy (dest, src, n) + n); |
1678 | } |
1679 | #endif |
1680 | |
1681 | #if !_LIBC && !HAVE_TSEARCH |
1682 | # include "tsearch.c" |
1683 | #endif |
1684 | |
1685 | |
1686 | #ifdef _LIBC |
1687 | /* If we want to free all resources we have to do some work at |
1688 | program's end. */ |
1689 | libc_freeres_fn (free_mem) |
1690 | { |
1691 | void *old; |
1692 | |
1693 | while (_nl_domain_bindings != NULL) |
1694 | { |
1695 | struct binding *oldp = _nl_domain_bindings; |
1696 | _nl_domain_bindings = _nl_domain_bindings->next; |
1697 | if (oldp->dirname != _nl_default_dirname) |
1698 | /* Yes, this is a pointer comparison. */ |
1699 | free (oldp->dirname); |
1700 | free (oldp->codeset); |
1701 | free (oldp); |
1702 | } |
1703 | |
1704 | if (_nl_current_default_domain != _nl_default_default_domain) |
1705 | /* Yes, again a pointer comparison. */ |
1706 | free ((char *) _nl_current_default_domain); |
1707 | |
1708 | /* Remove the search tree with the known translations. */ |
1709 | __tdestroy (root, free); |
1710 | root = NULL; |
1711 | |
1712 | while (transmem_list != NULL) |
1713 | { |
1714 | old = transmem_list; |
1715 | transmem_list = transmem_list->next; |
1716 | free (old); |
1717 | } |
1718 | } |
1719 | #endif |
1720 | |