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abbffdf9 | 1 | /* Implementation of the internal dcigettext function. |
d4697bc9 | 2 | Copyright (C) 1995-2014 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
abbffdf9 | 4 | |
abbffdf9 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
abbffdf9 UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
abbffdf9 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
abbffdf9 | 18 | |
0a55a284 UD |
19 | /* Tell glibc's <string.h> to provide a prototype for mempcpy(). |
20 | This must come before <config.h> because <config.h> may include | |
21 | <features.h>, and once <features.h> has been included, it's too late. */ | |
22 | #ifndef _GNU_SOURCE | |
23 | # define _GNU_SOURCE 1 | |
24 | #endif | |
25 | ||
abbffdf9 UD |
26 | #ifdef HAVE_CONFIG_H |
27 | # include <config.h> | |
28 | #endif | |
29 | ||
30 | #include <sys/types.h> | |
31 | ||
0555fcce | 32 | #ifdef __GNUC__ |
abbffdf9 UD |
33 | # define alloca __builtin_alloca |
34 | # define HAVE_ALLOCA 1 | |
35 | #else | |
0555fcce | 36 | # if defined HAVE_ALLOCA_H || defined _LIBC |
abbffdf9 UD |
37 | # include <alloca.h> |
38 | # else | |
39 | # ifdef _AIX | |
40 | #pragma alloca | |
41 | # else | |
42 | # ifndef alloca | |
43 | char *alloca (); | |
44 | # endif | |
45 | # endif | |
46 | # endif | |
47 | #endif | |
48 | ||
49 | #include <errno.h> | |
50 | #ifndef errno | |
51 | extern int errno; | |
52 | #endif | |
53 | #ifndef __set_errno | |
54 | # define __set_errno(val) errno = (val) | |
55 | #endif | |
56 | ||
0555fcce UD |
57 | #include <stddef.h> |
58 | #include <stdlib.h> | |
59 | #include <string.h> | |
abbffdf9 UD |
60 | |
61 | #if defined HAVE_UNISTD_H || defined _LIBC | |
62 | # include <unistd.h> | |
63 | #endif | |
64 | ||
0555fcce | 65 | #include <locale.h> |
abbffdf9 UD |
66 | |
67 | #if defined HAVE_SYS_PARAM_H || defined _LIBC | |
68 | # include <sys/param.h> | |
69 | #endif | |
70 | ||
abbffdf9 | 71 | #include "gettextP.h" |
0555fcce | 72 | #include "plural-exp.h" |
abbffdf9 UD |
73 | #ifdef _LIBC |
74 | # include <libintl.h> | |
75 | #else | |
4a4d50f3 | 76 | # include "libgnuintl.h" |
abbffdf9 UD |
77 | #endif |
78 | #include "hash-string.h" | |
79 | ||
80 | /* Thread safetyness. */ | |
81 | #ifdef _LIBC | |
82 | # include <bits/libc-lock.h> | |
0ed99ce4 UD |
83 | #else |
84 | /* Provide dummy implementation if this is outside glibc. */ | |
0a55a284 | 85 | # define __libc_lock_define_initialized(CLASS, NAME) |
0ed99ce4 UD |
86 | # define __libc_lock_lock(NAME) |
87 | # define __libc_lock_unlock(NAME) | |
0a55a284 UD |
88 | # define __libc_rwlock_define_initialized(CLASS, NAME) |
89 | # define __libc_rwlock_rdlock(NAME) | |
90 | # define __libc_rwlock_unlock(NAME) | |
abbffdf9 UD |
91 | #endif |
92 | ||
45eca4d1 UD |
93 | /* Alignment of types. */ |
94 | #if defined __GNUC__ && __GNUC__ >= 2 | |
95 | # define alignof(TYPE) __alignof__ (TYPE) | |
96 | #else | |
97 | # define alignof(TYPE) \ | |
98 | ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2) | |
99 | #endif | |
100 | ||
52d895a4 UD |
101 | /* The internal variables in the standalone libintl.a must have different |
102 | names than the internal variables in GNU libc, otherwise programs | |
103 | using libintl.a cannot be linked statically. */ | |
104 | #if !defined _LIBC | |
0f131646 RM |
105 | # define _nl_default_default_domain libintl_nl_default_default_domain |
106 | # define _nl_current_default_domain libintl_nl_current_default_domain | |
107 | # define _nl_default_dirname libintl_nl_default_dirname | |
108 | # define _nl_domain_bindings libintl_nl_domain_bindings | |
52d895a4 UD |
109 | #endif |
110 | ||
4a4d50f3 UD |
111 | /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */ |
112 | #ifndef offsetof | |
113 | # define offsetof(type,ident) ((size_t)&(((type*)0)->ident)) | |
114 | #endif | |
115 | ||
abbffdf9 UD |
116 | /* @@ end of prolog @@ */ |
117 | ||
118 | #ifdef _LIBC | |
119 | /* Rename the non ANSI C functions. This is required by the standard | |
120 | because some ANSI C functions will require linking with this object | |
121 | file and the name space must not be polluted. */ | |
122 | # define getcwd __getcwd | |
123 | # ifndef stpcpy | |
124 | # define stpcpy __stpcpy | |
125 | # endif | |
4aebaa6b | 126 | # define tfind __tfind |
abbffdf9 UD |
127 | #else |
128 | # if !defined HAVE_GETCWD | |
129 | char *getwd (); | |
130 | # define getcwd(buf, max) getwd (buf) | |
131 | # else | |
132 | char *getcwd (); | |
133 | # endif | |
134 | # ifndef HAVE_STPCPY | |
135 | static char *stpcpy PARAMS ((char *dest, const char *src)); | |
136 | # endif | |
137 | # ifndef HAVE_MEMPCPY | |
138 | static void *mempcpy PARAMS ((void *dest, const void *src, size_t n)); | |
139 | # endif | |
140 | #endif | |
141 | ||
142 | /* Amount to increase buffer size by in each try. */ | |
143 | #define PATH_INCR 32 | |
144 | ||
145 | /* The following is from pathmax.h. */ | |
146 | /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define | |
147 | PATH_MAX but might cause redefinition warnings when sys/param.h is | |
148 | later included (as on MORE/BSD 4.3). */ | |
149 | #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__) | |
150 | # include <limits.h> | |
151 | #endif | |
152 | ||
153 | #ifndef _POSIX_PATH_MAX | |
154 | # define _POSIX_PATH_MAX 255 | |
155 | #endif | |
156 | ||
157 | #if !defined PATH_MAX && defined _PC_PATH_MAX | |
158 | # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX)) | |
159 | #endif | |
160 | ||
161 | /* Don't include sys/param.h if it already has been. */ | |
162 | #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN | |
163 | # include <sys/param.h> | |
164 | #endif | |
165 | ||
166 | #if !defined PATH_MAX && defined MAXPATHLEN | |
167 | # define PATH_MAX MAXPATHLEN | |
168 | #endif | |
169 | ||
170 | #ifndef PATH_MAX | |
171 | # define PATH_MAX _POSIX_PATH_MAX | |
172 | #endif | |
173 | ||
8406a53a UD |
174 | /* Whether to support different locales in different threads. */ |
175 | #if defined _LIBC || HAVE_NL_LOCALE_NAME | |
176 | # define HAVE_PER_THREAD_LOCALE | |
177 | #endif | |
178 | ||
abbffdf9 UD |
179 | /* This is the type used for the search tree where known translations |
180 | are stored. */ | |
181 | struct known_translation_t | |
182 | { | |
183 | /* Domain in which to search. */ | |
edac4240 | 184 | const char *domainname; |
abbffdf9 UD |
185 | |
186 | /* The category. */ | |
187 | int category; | |
188 | ||
8406a53a UD |
189 | #ifdef HAVE_PER_THREAD_LOCALE |
190 | /* Name of the relevant locale category, or "" for the global locale. */ | |
191 | const char *localename; | |
192 | #endif | |
193 | ||
abbffdf9 UD |
194 | /* State of the catalog counter at the point the string was found. */ |
195 | int counter; | |
196 | ||
f8f900ec UD |
197 | /* Catalog where the string was found. */ |
198 | struct loaded_l10nfile *domain; | |
199 | ||
abbffdf9 UD |
200 | /* And finally the translation. */ |
201 | const char *translation; | |
f8f900ec | 202 | size_t translation_length; |
abbffdf9 UD |
203 | |
204 | /* Pointer to the string in question. */ | |
80b286ed UD |
205 | union |
206 | { | |
207 | char appended[ZERO]; /* used if domain != NULL */ | |
208 | const char *ptr; /* used if domain == NULL */ | |
209 | } | |
210 | msgid; | |
abbffdf9 UD |
211 | }; |
212 | ||
213 | /* Root of the search tree with known translations. We can use this | |
214 | only if the system provides the `tsearch' function family. */ | |
215 | #if defined HAVE_TSEARCH || defined _LIBC | |
216 | # include <search.h> | |
217 | ||
218 | static void *root; | |
219 | ||
220 | # ifdef _LIBC | |
221 | # define tsearch __tsearch | |
222 | # endif | |
223 | ||
224 | /* Function to compare two entries in the table of known translations. */ | |
4a4d50f3 | 225 | static int transcmp PARAMS ((const void *p1, const void *p2)); |
abbffdf9 | 226 | static int |
4a4d50f3 UD |
227 | transcmp (p1, p2) |
228 | const void *p1; | |
229 | const void *p2; | |
abbffdf9 | 230 | { |
ad5b53b1 UD |
231 | const struct known_translation_t *s1; |
232 | const struct known_translation_t *s2; | |
abbffdf9 UD |
233 | int result; |
234 | ||
ad5b53b1 UD |
235 | s1 = (const struct known_translation_t *) p1; |
236 | s2 = (const struct known_translation_t *) p2; | |
237 | ||
80b286ed UD |
238 | result = strcmp (s1->domain != NULL ? s1->msgid.appended : s1->msgid.ptr, |
239 | s2->domain != NULL ? s2->msgid.appended : s2->msgid.ptr); | |
abbffdf9 UD |
240 | if (result == 0) |
241 | { | |
f8f900ec | 242 | result = strcmp (s1->domainname, s2->domainname); |
abbffdf9 | 243 | if (result == 0) |
8406a53a UD |
244 | { |
245 | #ifdef HAVE_PER_THREAD_LOCALE | |
246 | result = strcmp (s1->localename, s2->localename); | |
247 | if (result == 0) | |
248 | #endif | |
249 | /* We compare the category last (though this is the cheapest | |
250 | operation) since it is hopefully always the same (namely | |
251 | LC_MESSAGES). */ | |
252 | result = s1->category - s2->category; | |
253 | } | |
abbffdf9 UD |
254 | } |
255 | ||
256 | return result; | |
257 | } | |
258 | #endif | |
259 | ||
260 | /* Name of the default domain used for gettext(3) prior any call to | |
261 | textdomain(3). The default value for this is "messages". */ | |
418f1701 | 262 | const char _nl_default_default_domain[] attribute_hidden = "messages"; |
abbffdf9 UD |
263 | |
264 | /* Value used as the default domain for gettext(3). */ | |
418f1701 UD |
265 | const char *_nl_current_default_domain attribute_hidden |
266 | = _nl_default_default_domain; | |
abbffdf9 UD |
267 | |
268 | /* Contains the default location of the message catalogs. */ | |
9cfe5381 RM |
269 | |
270 | #ifdef _LIBC | |
271 | extern const char _nl_default_dirname[]; | |
272 | libc_hidden_proto (_nl_default_dirname) | |
273 | #endif | |
4a4d50f3 | 274 | const char _nl_default_dirname[] = LOCALEDIR; |
9cfe5381 RM |
275 | #ifdef _LIBC |
276 | libc_hidden_data_def (_nl_default_dirname) | |
277 | #endif | |
abbffdf9 UD |
278 | |
279 | /* List with bindings of specific domains created by bindtextdomain() | |
280 | calls. */ | |
281 | struct binding *_nl_domain_bindings; | |
282 | ||
283 | /* Prototypes for local functions. */ | |
f8f900ec UD |
284 | static char *plural_lookup PARAMS ((struct loaded_l10nfile *domain, |
285 | unsigned long int n, | |
286 | const char *translation, | |
287 | size_t translation_len)) | |
288 | internal_function; | |
abbffdf9 UD |
289 | static const char *guess_category_value PARAMS ((int category, |
290 | const char *categoryname)) | |
291 | internal_function; | |
2b71beea RM |
292 | #ifdef _LIBC |
293 | # include "../locale/localeinfo.h" | |
9446614c UD |
294 | # define category_to_name(category) \ |
295 | _nl_category_names.str + _nl_category_name_idxs[category] | |
2b71beea RM |
296 | #else |
297 | static const char *category_to_name PARAMS ((int category)) internal_function; | |
298 | #endif | |
abbffdf9 UD |
299 | |
300 | ||
301 | /* For those loosing systems which don't have `alloca' we have to add | |
302 | some additional code emulating it. */ | |
303 | #ifdef HAVE_ALLOCA | |
304 | /* Nothing has to be done. */ | |
0f131646 | 305 | # define freea(p) /* nothing */ |
abbffdf9 UD |
306 | # define ADD_BLOCK(list, address) /* nothing */ |
307 | # define FREE_BLOCKS(list) /* nothing */ | |
308 | #else | |
309 | struct block_list | |
310 | { | |
311 | void *address; | |
312 | struct block_list *next; | |
313 | }; | |
314 | # define ADD_BLOCK(list, addr) \ | |
315 | do { \ | |
316 | struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \ | |
317 | /* If we cannot get a free block we cannot add the new element to \ | |
318 | the list. */ \ | |
319 | if (newp != NULL) { \ | |
320 | newp->address = (addr); \ | |
321 | newp->next = (list); \ | |
322 | (list) = newp; \ | |
323 | } \ | |
324 | } while (0) | |
325 | # define FREE_BLOCKS(list) \ | |
326 | do { \ | |
327 | while (list != NULL) { \ | |
328 | struct block_list *old = list; \ | |
329 | list = list->next; \ | |
0f131646 | 330 | free (old->address); \ |
abbffdf9 UD |
331 | free (old); \ |
332 | } \ | |
333 | } while (0) | |
334 | # undef alloca | |
335 | # define alloca(size) (malloc (size)) | |
0f131646 | 336 | # define freea(p) free (p) |
abbffdf9 UD |
337 | #endif /* have alloca */ |
338 | ||
339 | ||
f8f900ec | 340 | #ifdef _LIBC |
7f455351 | 341 | /* List of blocks allocated for translations. */ |
f8f900ec | 342 | typedef struct transmem_list |
7f455351 UD |
343 | { |
344 | struct transmem_list *next; | |
4a4d50f3 | 345 | char data[ZERO]; |
f8f900ec UD |
346 | } transmem_block_t; |
347 | static struct transmem_list *transmem_list; | |
348 | #else | |
e686e1a1 | 349 | typedef unsigned char transmem_block_t; |
f8f900ec | 350 | #endif |
4e82c610 UD |
351 | #if defined _LIBC || HAVE_ICONV |
352 | static const char *get_output_charset PARAMS ((struct binding *domainbinding)) | |
353 | internal_function; | |
354 | #endif | |
7f455351 UD |
355 | |
356 | ||
abbffdf9 UD |
357 | /* Names for the libintl functions are a problem. They must not clash |
358 | with existing names and they should follow ANSI C. But this source | |
359 | code is also used in GNU C Library where the names have a __ | |
360 | prefix. So we have to make a difference here. */ | |
361 | #ifdef _LIBC | |
362 | # define DCIGETTEXT __dcigettext | |
363 | #else | |
0f131646 | 364 | # define DCIGETTEXT libintl_dcigettext |
abbffdf9 UD |
365 | #endif |
366 | ||
0ed99ce4 | 367 | /* Lock variable to protect the global data in the gettext implementation. */ |
0555fcce | 368 | #ifdef _LIBC |
418f1701 | 369 | __libc_rwlock_define_initialized (, _nl_state_lock attribute_hidden) |
0555fcce | 370 | #endif |
0ed99ce4 | 371 | |
abbffdf9 UD |
372 | /* Checking whether the binaries runs SUID must be done and glibc provides |
373 | easier methods therefore we make a difference here. */ | |
374 | #ifdef _LIBC | |
375 | # define ENABLE_SECURE __libc_enable_secure | |
376 | # define DETERMINE_SECURE | |
377 | #else | |
0f131646 RM |
378 | # ifndef HAVE_GETUID |
379 | # define getuid() 0 | |
380 | # endif | |
381 | # ifndef HAVE_GETGID | |
382 | # define getgid() 0 | |
383 | # endif | |
384 | # ifndef HAVE_GETEUID | |
385 | # define geteuid() getuid() | |
386 | # endif | |
387 | # ifndef HAVE_GETEGID | |
388 | # define getegid() getgid() | |
389 | # endif | |
abbffdf9 UD |
390 | static int enable_secure; |
391 | # define ENABLE_SECURE (enable_secure == 1) | |
392 | # define DETERMINE_SECURE \ | |
393 | if (enable_secure == 0) \ | |
394 | { \ | |
395 | if (getuid () != geteuid () || getgid () != getegid ()) \ | |
396 | enable_secure = 1; \ | |
397 | else \ | |
398 | enable_secure = -1; \ | |
399 | } | |
400 | #endif | |
401 | ||
0555fcce UD |
402 | /* Get the function to evaluate the plural expression. */ |
403 | #include "plural-eval.c" | |
404 | ||
abbffdf9 UD |
405 | /* Look up MSGID in the DOMAINNAME message catalog for the current |
406 | CATEGORY locale and, if PLURAL is nonzero, search over string | |
407 | depending on the plural form determined by N. */ | |
408 | char * | |
409 | DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category) | |
410 | const char *domainname; | |
411 | const char *msgid1; | |
412 | const char *msgid2; | |
413 | int plural; | |
414 | unsigned long int n; | |
415 | int category; | |
416 | { | |
417 | #ifndef HAVE_ALLOCA | |
418 | struct block_list *block_list = NULL; | |
419 | #endif | |
420 | struct loaded_l10nfile *domain; | |
421 | struct binding *binding; | |
422 | const char *categoryname; | |
423 | const char *categoryvalue; | |
424 | char *dirname, *xdomainname; | |
425 | char *single_locale; | |
426 | char *retval; | |
f8f900ec | 427 | size_t retlen; |
abbffdf9 UD |
428 | int saved_errno; |
429 | #if defined HAVE_TSEARCH || defined _LIBC | |
80b286ed | 430 | struct known_translation_t search; |
abbffdf9 | 431 | struct known_translation_t **foundp = NULL; |
8406a53a UD |
432 | # ifdef HAVE_PER_THREAD_LOCALE |
433 | const char *localename; | |
434 | # endif | |
abbffdf9 UD |
435 | #endif |
436 | size_t domainname_len; | |
437 | ||
438 | /* If no real MSGID is given return NULL. */ | |
439 | if (msgid1 == NULL) | |
440 | return NULL; | |
441 | ||
2b71beea RM |
442 | #ifdef _LIBC |
443 | if (category < 0 || category >= __LC_LAST || category == LC_ALL) | |
444 | /* Bogus. */ | |
445 | return (plural == 0 | |
446 | ? (char *) msgid1 | |
447 | /* Use the Germanic plural rule. */ | |
448 | : n == 1 ? (char *) msgid1 : (char *) msgid2); | |
449 | #endif | |
450 | ||
9a69db29 UD |
451 | #ifdef _LIBC |
452 | __libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden) | |
453 | __libc_rwlock_rdlock (__libc_setlocale_lock); | |
454 | #endif | |
455 | ||
0ed99ce4 UD |
456 | __libc_rwlock_rdlock (_nl_state_lock); |
457 | ||
17c389fc UD |
458 | /* If DOMAINNAME is NULL, we are interested in the default domain. If |
459 | CATEGORY is not LC_MESSAGES this might not make much sense but the | |
460 | definition left this undefined. */ | |
461 | if (domainname == NULL) | |
462 | domainname = _nl_current_default_domain; | |
463 | ||
abbffdf9 | 464 | #if defined HAVE_TSEARCH || defined _LIBC |
f8f900ec UD |
465 | /* Try to find the translation among those which we found at |
466 | some time. */ | |
80b286ed UD |
467 | search.domain = NULL; |
468 | search.msgid.ptr = msgid1; | |
469 | search.domainname = domainname; | |
470 | search.category = category; | |
8406a53a UD |
471 | # ifdef HAVE_PER_THREAD_LOCALE |
472 | # ifdef _LIBC | |
9a69db29 | 473 | localename = strdupa (__current_locale_name (category)); |
8406a53a | 474 | # endif |
80b286ed | 475 | search.localename = localename; |
8406a53a | 476 | # endif |
f8f900ec | 477 | |
ce7265c7 UD |
478 | /* Since tfind/tsearch manage a balanced tree, concurrent tfind and |
479 | tsearch calls can be fatal. */ | |
480 | __libc_rwlock_define_initialized (static, tree_lock); | |
481 | __libc_rwlock_rdlock (tree_lock); | |
482 | ||
80b286ed | 483 | foundp = (struct known_translation_t **) tfind (&search, &root, transcmp); |
ce7265c7 UD |
484 | |
485 | __libc_rwlock_unlock (tree_lock); | |
486 | ||
f8f900ec | 487 | if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr) |
abbffdf9 | 488 | { |
f8f900ec UD |
489 | /* Now deal with plural. */ |
490 | if (plural) | |
491 | retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation, | |
492 | (*foundp)->translation_length); | |
493 | else | |
494 | retval = (char *) (*foundp)->translation; | |
495 | ||
9a69db29 UD |
496 | # ifdef _LIBC |
497 | __libc_rwlock_unlock (__libc_setlocale_lock); | |
498 | # endif | |
f8f900ec UD |
499 | __libc_rwlock_unlock (_nl_state_lock); |
500 | return retval; | |
abbffdf9 UD |
501 | } |
502 | #endif | |
503 | ||
504 | /* Preserve the `errno' value. */ | |
505 | saved_errno = errno; | |
506 | ||
507 | /* See whether this is a SUID binary or not. */ | |
508 | DETERMINE_SECURE; | |
509 | ||
abbffdf9 UD |
510 | /* First find matching binding. */ |
511 | for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) | |
512 | { | |
513 | int compare = strcmp (domainname, binding->domainname); | |
514 | if (compare == 0) | |
515 | /* We found it! */ | |
516 | break; | |
517 | if (compare < 0) | |
518 | { | |
519 | /* It is not in the list. */ | |
520 | binding = NULL; | |
521 | break; | |
522 | } | |
523 | } | |
524 | ||
525 | if (binding == NULL) | |
9cfe5381 | 526 | dirname = (char *) _nl_default_dirname; |
abbffdf9 UD |
527 | else if (binding->dirname[0] == '/') |
528 | dirname = binding->dirname; | |
529 | else | |
530 | { | |
531 | /* We have a relative path. Make it absolute now. */ | |
532 | size_t dirname_len = strlen (binding->dirname) + 1; | |
533 | size_t path_max; | |
534 | char *ret; | |
535 | ||
536 | path_max = (unsigned int) PATH_MAX; | |
537 | path_max += 2; /* The getcwd docs say to do this. */ | |
538 | ||
0555fcce | 539 | for (;;) |
abbffdf9 | 540 | { |
abbffdf9 UD |
541 | dirname = (char *) alloca (path_max + dirname_len); |
542 | ADD_BLOCK (block_list, dirname); | |
0555fcce | 543 | |
abbffdf9 | 544 | __set_errno (0); |
0555fcce UD |
545 | ret = getcwd (dirname, path_max); |
546 | if (ret != NULL || errno != ERANGE) | |
547 | break; | |
548 | ||
549 | path_max += path_max / 2; | |
550 | path_max += PATH_INCR; | |
abbffdf9 UD |
551 | } |
552 | ||
553 | if (ret == NULL) | |
52de761a | 554 | goto no_translation; |
abbffdf9 UD |
555 | |
556 | stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname); | |
557 | } | |
558 | ||
559 | /* Now determine the symbolic name of CATEGORY and its value. */ | |
560 | categoryname = category_to_name (category); | |
561 | categoryvalue = guess_category_value (category, categoryname); | |
562 | ||
563 | domainname_len = strlen (domainname); | |
564 | xdomainname = (char *) alloca (strlen (categoryname) | |
565 | + domainname_len + 5); | |
566 | ADD_BLOCK (block_list, xdomainname); | |
567 | ||
568 | stpcpy (mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"), | |
569 | domainname, domainname_len), | |
570 | ".mo"); | |
571 | ||
572 | /* Creating working area. */ | |
573 | single_locale = (char *) alloca (strlen (categoryvalue) + 1); | |
574 | ADD_BLOCK (block_list, single_locale); | |
575 | ||
576 | ||
577 | /* Search for the given string. This is a loop because we perhaps | |
578 | got an ordered list of languages to consider for the translation. */ | |
579 | while (1) | |
580 | { | |
581 | /* Make CATEGORYVALUE point to the next element of the list. */ | |
582 | while (categoryvalue[0] != '\0' && categoryvalue[0] == ':') | |
583 | ++categoryvalue; | |
584 | if (categoryvalue[0] == '\0') | |
585 | { | |
586 | /* The whole contents of CATEGORYVALUE has been searched but | |
587 | no valid entry has been found. We solve this situation | |
588 | by implicitly appending a "C" entry, i.e. no translation | |
589 | will take place. */ | |
590 | single_locale[0] = 'C'; | |
591 | single_locale[1] = '\0'; | |
592 | } | |
593 | else | |
594 | { | |
595 | char *cp = single_locale; | |
596 | while (categoryvalue[0] != '\0' && categoryvalue[0] != ':') | |
597 | *cp++ = *categoryvalue++; | |
598 | *cp = '\0'; | |
599 | ||
600 | /* When this is a SUID binary we must not allow accessing files | |
601 | outside the dedicated directories. */ | |
6adc15f5 | 602 | if (ENABLE_SECURE && strchr (single_locale, '/') != NULL) |
abbffdf9 UD |
603 | /* Ingore this entry. */ |
604 | continue; | |
605 | } | |
606 | ||
607 | /* If the current locale value is C (or POSIX) we don't load a | |
608 | domain. Return the MSGID. */ | |
609 | if (strcmp (single_locale, "C") == 0 | |
610 | || strcmp (single_locale, "POSIX") == 0) | |
611 | { | |
4259230f | 612 | no_translation: |
abbffdf9 | 613 | FREE_BLOCKS (block_list); |
9a69db29 | 614 | __libc_rwlock_unlock (__libc_setlocale_lock); |
0ed99ce4 | 615 | __libc_rwlock_unlock (_nl_state_lock); |
abbffdf9 UD |
616 | __set_errno (saved_errno); |
617 | return (plural == 0 | |
618 | ? (char *) msgid1 | |
619 | /* Use the Germanic plural rule. */ | |
620 | : n == 1 ? (char *) msgid1 : (char *) msgid2); | |
621 | } | |
622 | ||
623 | ||
624 | /* Find structure describing the message catalog matching the | |
625 | DOMAINNAME and CATEGORY. */ | |
17c389fc | 626 | domain = _nl_find_domain (dirname, single_locale, xdomainname, binding); |
abbffdf9 UD |
627 | |
628 | if (domain != NULL) | |
629 | { | |
4e82c610 | 630 | retval = _nl_find_msg (domain, binding, msgid1, 1, &retlen); |
abbffdf9 UD |
631 | |
632 | if (retval == NULL) | |
633 | { | |
634 | int cnt; | |
635 | ||
636 | for (cnt = 0; domain->successor[cnt] != NULL; ++cnt) | |
637 | { | |
c44a663d | 638 | retval = _nl_find_msg (domain->successor[cnt], binding, |
4e82c610 | 639 | msgid1, 1, &retlen); |
abbffdf9 | 640 | |
7a44c18f CD |
641 | /* Resource problems are not fatal, instead we return no |
642 | translation. */ | |
a1ffb40e | 643 | if (__glibc_unlikely (retval == (char *) -1)) |
7a44c18f CD |
644 | goto no_translation; |
645 | ||
abbffdf9 | 646 | if (retval != NULL) |
f8f900ec UD |
647 | { |
648 | domain = domain->successor[cnt]; | |
649 | break; | |
650 | } | |
abbffdf9 UD |
651 | } |
652 | } | |
653 | ||
4259230f UD |
654 | /* Returning -1 means that some resource problem exists |
655 | (likely memory) and that the strings could not be | |
656 | converted. Return the original strings. */ | |
a1ffb40e | 657 | if (__glibc_unlikely (retval == (char *) -1)) |
4259230f UD |
658 | goto no_translation; |
659 | ||
abbffdf9 UD |
660 | if (retval != NULL) |
661 | { | |
f8f900ec UD |
662 | /* Found the translation of MSGID1 in domain DOMAIN: |
663 | starting at RETVAL, RETLEN bytes. */ | |
abbffdf9 | 664 | FREE_BLOCKS (block_list); |
abbffdf9 UD |
665 | #if defined HAVE_TSEARCH || defined _LIBC |
666 | if (foundp == NULL) | |
667 | { | |
668 | /* Create a new entry and add it to the search tree. */ | |
80b286ed | 669 | size_t msgid_len; |
8406a53a | 670 | size_t size; |
abbffdf9 UD |
671 | struct known_translation_t *newp; |
672 | ||
80b286ed | 673 | msgid_len = strlen (msgid1) + 1; |
8406a53a UD |
674 | size = offsetof (struct known_translation_t, msgid) |
675 | + msgid_len + domainname_len + 1; | |
676 | # ifdef HAVE_PER_THREAD_LOCALE | |
677 | size += strlen (localename) + 1; | |
678 | # endif | |
679 | newp = (struct known_translation_t *) malloc (size); | |
abbffdf9 UD |
680 | if (newp != NULL) |
681 | { | |
edac4240 | 682 | char *new_domainname; |
8406a53a UD |
683 | # ifdef HAVE_PER_THREAD_LOCALE |
684 | char *new_localename; | |
685 | # endif | |
edac4240 | 686 | |
80b286ed UD |
687 | new_domainname = |
688 | mempcpy (newp->msgid.appended, msgid1, msgid_len); | |
edac4240 | 689 | memcpy (new_domainname, domainname, domainname_len + 1); |
8406a53a UD |
690 | # ifdef HAVE_PER_THREAD_LOCALE |
691 | new_localename = new_domainname + domainname_len + 1; | |
692 | strcpy (new_localename, localename); | |
693 | # endif | |
edac4240 | 694 | newp->domainname = new_domainname; |
abbffdf9 | 695 | newp->category = category; |
8406a53a UD |
696 | # ifdef HAVE_PER_THREAD_LOCALE |
697 | newp->localename = new_localename; | |
698 | # endif | |
abbffdf9 | 699 | newp->counter = _nl_msg_cat_cntr; |
f8f900ec | 700 | newp->domain = domain; |
abbffdf9 | 701 | newp->translation = retval; |
f8f900ec | 702 | newp->translation_length = retlen; |
abbffdf9 | 703 | |
ce7265c7 UD |
704 | __libc_rwlock_wrlock (tree_lock); |
705 | ||
abbffdf9 UD |
706 | /* Insert the entry in the search tree. */ |
707 | foundp = (struct known_translation_t **) | |
708 | tsearch (newp, &root, transcmp); | |
ce7265c7 UD |
709 | |
710 | __libc_rwlock_unlock (tree_lock); | |
711 | ||
d89d0afa UD |
712 | if (foundp == NULL |
713 | || __builtin_expect (*foundp != newp, 0)) | |
abbffdf9 UD |
714 | /* The insert failed. */ |
715 | free (newp); | |
716 | } | |
717 | } | |
718 | else | |
719 | { | |
720 | /* We can update the existing entry. */ | |
721 | (*foundp)->counter = _nl_msg_cat_cntr; | |
f8f900ec | 722 | (*foundp)->domain = domain; |
abbffdf9 | 723 | (*foundp)->translation = retval; |
f8f900ec | 724 | (*foundp)->translation_length = retlen; |
abbffdf9 UD |
725 | } |
726 | #endif | |
7f4dce05 RM |
727 | __set_errno (saved_errno); |
728 | ||
f8f900ec UD |
729 | /* Now deal with plural. */ |
730 | if (plural) | |
731 | retval = plural_lookup (domain, n, retval, retlen); | |
732 | ||
9a69db29 | 733 | __libc_rwlock_unlock (__libc_setlocale_lock); |
0ed99ce4 | 734 | __libc_rwlock_unlock (_nl_state_lock); |
abbffdf9 UD |
735 | return retval; |
736 | } | |
737 | } | |
738 | } | |
739 | /* NOTREACHED */ | |
740 | } | |
741 | ||
742 | ||
743 | char * | |
744 | internal_function | |
4e82c610 | 745 | _nl_find_msg (domain_file, domainbinding, msgid, convert, lengthp) |
abbffdf9 | 746 | struct loaded_l10nfile *domain_file; |
c44a663d | 747 | struct binding *domainbinding; |
abbffdf9 | 748 | const char *msgid; |
4e82c610 | 749 | int convert; |
f8f900ec | 750 | size_t *lengthp; |
abbffdf9 | 751 | { |
354e6102 | 752 | struct loaded_domain *domain; |
3172f58f | 753 | nls_uint32 nstrings; |
0a55a284 UD |
754 | size_t act; |
755 | char *result; | |
f8f900ec | 756 | size_t resultlen; |
abbffdf9 | 757 | |
ce7265c7 | 758 | if (domain_file->decided <= 0) |
c44a663d | 759 | _nl_load_domain (domain_file, domainbinding); |
abbffdf9 UD |
760 | |
761 | if (domain_file->data == NULL) | |
762 | return NULL; | |
763 | ||
354e6102 | 764 | domain = (struct loaded_domain *) domain_file->data; |
abbffdf9 | 765 | |
3172f58f UD |
766 | nstrings = domain->nstrings; |
767 | ||
abbffdf9 | 768 | /* Locate the MSGID and its translation. */ |
3172f58f | 769 | if (domain->hash_tab != NULL) |
abbffdf9 UD |
770 | { |
771 | /* Use the hashing table. */ | |
772 | nls_uint32 len = strlen (msgid); | |
dd9423a6 | 773 | nls_uint32 hash_val = __hash_string (msgid); |
abbffdf9 UD |
774 | nls_uint32 idx = hash_val % domain->hash_size; |
775 | nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2)); | |
abbffdf9 | 776 | |
abbffdf9 UD |
777 | while (1) |
778 | { | |
3172f58f UD |
779 | nls_uint32 nstr = |
780 | W (domain->must_swap_hash_tab, domain->hash_tab[idx]); | |
4a4d50f3 UD |
781 | |
782 | if (nstr == 0) | |
783 | /* Hash table entry is empty. */ | |
784 | return NULL; | |
785 | ||
3172f58f UD |
786 | nstr--; |
787 | ||
788 | /* Compare msgid with the original string at index nstr. | |
f8f900ec UD |
789 | We compare the lengths with >=, not ==, because plural entries |
790 | are represented by strings with an embedded NUL. */ | |
3172f58f UD |
791 | if (nstr < nstrings |
792 | ? W (domain->must_swap, domain->orig_tab[nstr].length) >= len | |
793 | && (strcmp (msgid, | |
794 | domain->data + W (domain->must_swap, | |
795 | domain->orig_tab[nstr].offset)) | |
796 | == 0) | |
797 | : domain->orig_sysdep_tab[nstr - nstrings].length > len | |
798 | && (strcmp (msgid, | |
799 | domain->orig_sysdep_tab[nstr - nstrings].pointer) | |
800 | == 0)) | |
f8f900ec | 801 | { |
3172f58f | 802 | act = nstr; |
f8f900ec UD |
803 | goto found; |
804 | } | |
805 | ||
abbffdf9 UD |
806 | if (idx >= domain->hash_size - incr) |
807 | idx -= domain->hash_size - incr; | |
808 | else | |
809 | idx += incr; | |
abbffdf9 UD |
810 | } |
811 | /* NOTREACHED */ | |
812 | } | |
0a55a284 UD |
813 | else |
814 | { | |
815 | /* Try the default method: binary search in the sorted array of | |
816 | messages. */ | |
817 | size_t top, bottom; | |
818 | ||
819 | bottom = 0; | |
3172f58f | 820 | top = nstrings; |
0a55a284 UD |
821 | while (bottom < top) |
822 | { | |
823 | int cmp_val; | |
824 | ||
825 | act = (bottom + top) / 2; | |
826 | cmp_val = strcmp (msgid, (domain->data | |
827 | + W (domain->must_swap, | |
828 | domain->orig_tab[act].offset))); | |
829 | if (cmp_val < 0) | |
830 | top = act; | |
831 | else if (cmp_val > 0) | |
832 | bottom = act + 1; | |
833 | else | |
834 | goto found; | |
835 | } | |
836 | /* No translation was found. */ | |
837 | return NULL; | |
838 | } | |
abbffdf9 | 839 | |
0a55a284 UD |
840 | found: |
841 | /* The translation was found at index ACT. If we have to convert the | |
842 | string to use a different character set, this is the time. */ | |
3172f58f UD |
843 | if (act < nstrings) |
844 | { | |
845 | result = (char *) | |
846 | (domain->data + W (domain->must_swap, domain->trans_tab[act].offset)); | |
847 | resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1; | |
848 | } | |
849 | else | |
850 | { | |
851 | result = (char *) domain->trans_sysdep_tab[act - nstrings].pointer; | |
852 | resultlen = domain->trans_sysdep_tab[act - nstrings].length; | |
853 | } | |
0a55a284 UD |
854 | |
855 | #if defined _LIBC || HAVE_ICONV | |
4e82c610 | 856 | if (convert) |
c44a663d | 857 | { |
4e82c610 UD |
858 | /* We are supposed to do a conversion. */ |
859 | const char *encoding = get_output_charset (domainbinding); | |
860 | ||
408cfca0 UD |
861 | /* Protect against reallocation of the table. */ |
862 | __libc_rwlock_rdlock (domain->conversions_lock); | |
863 | ||
4e82c610 UD |
864 | /* Search whether a table with converted translations for this |
865 | encoding has already been allocated. */ | |
866 | size_t nconversions = domain->nconversions; | |
867 | struct converted_domain *convd = NULL; | |
868 | size_t i; | |
869 | ||
870 | for (i = nconversions; i > 0; ) | |
871 | { | |
872 | i--; | |
873 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) | |
874 | { | |
875 | convd = &domain->conversions[i]; | |
876 | break; | |
877 | } | |
878 | } | |
0ecb606c | 879 | |
408cfca0 UD |
880 | __libc_rwlock_unlock (domain->conversions_lock); |
881 | ||
4e82c610 UD |
882 | if (convd == NULL) |
883 | { | |
408cfca0 UD |
884 | /* We have to allocate a new conversions table. */ |
885 | __libc_rwlock_wrlock (domain->conversions_lock); | |
2ecc7d93 | 886 | nconversions = domain->nconversions; |
408cfca0 UD |
887 | |
888 | /* Maybe in the meantime somebody added the translation. | |
889 | Recheck. */ | |
890 | for (i = nconversions; i > 0; ) | |
891 | { | |
892 | i--; | |
893 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) | |
894 | { | |
895 | convd = &domain->conversions[i]; | |
896 | goto found_convd; | |
897 | } | |
898 | } | |
899 | ||
4e82c610 UD |
900 | /* Allocate a table for the converted translations for this |
901 | encoding. */ | |
902 | struct converted_domain *new_conversions = | |
903 | (struct converted_domain *) | |
4259230f UD |
904 | realloc (domain->conversions, |
905 | (nconversions + 1) * sizeof (struct converted_domain)); | |
4e82c610 | 906 | |
a1ffb40e | 907 | if (__glibc_unlikely (new_conversions == NULL)) |
408cfca0 UD |
908 | { |
909 | /* Nothing we can do, no more memory. We cannot use the | |
910 | translation because it might be encoded incorrectly. */ | |
911 | unlock_fail: | |
912 | __libc_rwlock_unlock (domain->conversions_lock); | |
913 | return (char *) -1; | |
914 | } | |
4259230f | 915 | |
4e82c610 UD |
916 | domain->conversions = new_conversions; |
917 | ||
918 | /* Copy the 'encoding' string to permanent storage. */ | |
919 | encoding = strdup (encoding); | |
a1ffb40e | 920 | if (__glibc_unlikely (encoding == NULL)) |
4259230f UD |
921 | /* Nothing we can do, no more memory. We cannot use the |
922 | translation because it might be encoded incorrectly. */ | |
408cfca0 | 923 | goto unlock_fail; |
4e82c610 UD |
924 | |
925 | convd = &new_conversions[nconversions]; | |
926 | convd->encoding = encoding; | |
927 | ||
928 | /* Find out about the character set the file is encoded with. | |
929 | This can be found (in textual form) in the entry "". If this | |
930 | entry does not exist or if this does not contain the 'charset=' | |
931 | information, we will assume the charset matches the one the | |
932 | current locale and we don't have to perform any conversion. */ | |
0ecb606c | 933 | # ifdef _LIBC |
4e82c610 | 934 | convd->conv = (__gconv_t) -1; |
0ecb606c JJ |
935 | # else |
936 | # if HAVE_ICONV | |
4e82c610 | 937 | convd->conv = (iconv_t) -1; |
0ecb606c JJ |
938 | # endif |
939 | # endif | |
4e82c610 UD |
940 | { |
941 | char *nullentry; | |
942 | size_t nullentrylen; | |
943 | ||
944 | /* Get the header entry. This is a recursion, but it doesn't | |
945 | reallocate domain->conversions because we pass convert = 0. */ | |
946 | nullentry = | |
947 | _nl_find_msg (domain_file, domainbinding, "", 0, &nullentrylen); | |
948 | ||
7a44c18f CD |
949 | /* Resource problems are fatal. If we continue onwards we will |
950 | only attempt to calloc a new conv_tab and fail later. */ | |
a1ffb40e | 951 | if (__glibc_unlikely (nullentry == (char *) -1)) |
7a44c18f CD |
952 | return (char *) -1; |
953 | ||
4e82c610 UD |
954 | if (nullentry != NULL) |
955 | { | |
956 | const char *charsetstr; | |
957 | ||
958 | charsetstr = strstr (nullentry, "charset="); | |
959 | if (charsetstr != NULL) | |
960 | { | |
961 | size_t len; | |
962 | char *charset; | |
963 | const char *outcharset; | |
964 | ||
965 | charsetstr += strlen ("charset="); | |
966 | len = strcspn (charsetstr, " \t\n"); | |
967 | ||
968 | charset = (char *) alloca (len + 1); | |
969 | # if defined _LIBC || HAVE_MEMPCPY | |
970 | *((char *) mempcpy (charset, charsetstr, len)) = '\0'; | |
971 | # else | |
972 | memcpy (charset, charsetstr, len); | |
973 | charset[len] = '\0'; | |
974 | # endif | |
975 | ||
976 | outcharset = encoding; | |
977 | ||
978 | # ifdef _LIBC | |
979 | /* We always want to use transliteration. */ | |
980 | outcharset = norm_add_slashes (outcharset, "TRANSLIT"); | |
981 | charset = norm_add_slashes (charset, ""); | |
4259230f UD |
982 | int r = __gconv_open (outcharset, charset, &convd->conv, |
983 | GCONV_AVOID_NOCONV); | |
a1ffb40e | 984 | if (__glibc_unlikely (r != __GCONV_OK)) |
4259230f UD |
985 | { |
986 | /* If the output encoding is the same there is | |
987 | nothing to do. Otherwise do not use the | |
988 | translation at all. */ | |
a1ffb40e | 989 | if (__glibc_likely (r != __GCONV_NULCONV)) |
ce31a3b1 | 990 | { |
656f02ce | 991 | __libc_rwlock_unlock (domain->conversions_lock); |
ce31a3b1 UD |
992 | free ((char *) encoding); |
993 | return NULL; | |
994 | } | |
4259230f UD |
995 | |
996 | convd->conv = (__gconv_t) -1; | |
997 | } | |
4e82c610 UD |
998 | # else |
999 | # if HAVE_ICONV | |
1000 | /* When using GNU libc >= 2.2 or GNU libiconv >= 1.5, | |
1001 | we want to use transliteration. */ | |
1002 | # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2 \ | |
1003 | || _LIBICONV_VERSION >= 0x0105 | |
1004 | if (strchr (outcharset, '/') == NULL) | |
1005 | { | |
1006 | char *tmp; | |
1007 | ||
1008 | len = strlen (outcharset); | |
1009 | tmp = (char *) alloca (len + 10 + 1); | |
1010 | memcpy (tmp, outcharset, len); | |
1011 | memcpy (tmp + len, "//TRANSLIT", 10 + 1); | |
1012 | outcharset = tmp; | |
1013 | ||
1014 | convd->conv = iconv_open (outcharset, charset); | |
1015 | ||
1016 | freea (outcharset); | |
1017 | } | |
1018 | else | |
1019 | # endif | |
1020 | convd->conv = iconv_open (outcharset, charset); | |
1021 | # endif | |
1022 | # endif | |
1023 | ||
1024 | freea (charset); | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | convd->conv_tab = NULL; | |
1029 | /* Here domain->conversions is still == new_conversions. */ | |
1030 | domain->nconversions++; | |
408cfca0 UD |
1031 | |
1032 | found_convd: | |
1033 | __libc_rwlock_unlock (domain->conversions_lock); | |
4e82c610 UD |
1034 | } |
1035 | ||
1036 | if ( | |
1037 | # ifdef _LIBC | |
1038 | convd->conv != (__gconv_t) -1 | |
1039 | # else | |
1040 | # if HAVE_ICONV | |
1041 | convd->conv != (iconv_t) -1 | |
1042 | # endif | |
1043 | # endif | |
1044 | ) | |
0a55a284 | 1045 | { |
2ecc7d93 | 1046 | __libc_lock_define_initialized (static, lock) |
4e82c610 UD |
1047 | /* We are supposed to do a conversion. First allocate an |
1048 | appropriate table with the same structure as the table | |
1049 | of translations in the file, where we can put the pointers | |
1050 | to the converted strings in. | |
1051 | There is a slight complication with plural entries. They | |
1052 | are represented by consecutive NUL terminated strings. We | |
1053 | handle this case by converting RESULTLEN bytes, including | |
1054 | NULs. */ | |
1055 | ||
a1ffb40e | 1056 | if (__glibc_unlikely (convd->conv_tab == NULL)) |
2ecc7d93 UD |
1057 | { |
1058 | __libc_lock_lock (lock); | |
1059 | if (convd->conv_tab == NULL) | |
1060 | { | |
1061 | convd->conv_tab | |
1062 | = calloc (nstrings + domain->n_sysdep_strings, | |
1063 | sizeof (char *)); | |
1064 | if (convd->conv_tab != NULL) | |
1065 | goto not_translated_yet; | |
1066 | /* Mark that we didn't succeed allocating a table. */ | |
1067 | convd->conv_tab = (char **) -1; | |
1068 | } | |
1069 | __libc_lock_unlock (lock); | |
1070 | } | |
4e82c610 | 1071 | |
a1ffb40e | 1072 | if (__glibc_unlikely (convd->conv_tab == (char **) -1)) |
4259230f UD |
1073 | /* Nothing we can do, no more memory. We cannot use the |
1074 | translation because it might be encoded incorrectly. */ | |
1075 | return (char *) -1; | |
4e82c610 UD |
1076 | |
1077 | if (convd->conv_tab[act] == NULL) | |
1078 | { | |
2ecc7d93 UD |
1079 | __libc_lock_lock (lock); |
1080 | not_translated_yet:; | |
1081 | ||
4e82c610 UD |
1082 | /* We haven't used this string so far, so it is not |
1083 | translated yet. Do this now. */ | |
1084 | /* We use a bit more efficient memory handling. | |
1085 | We allocate always larger blocks which get used over | |
1086 | time. This is faster than many small allocations. */ | |
f8f900ec | 1087 | # define INITIAL_BLOCK_SIZE 4080 |
4e82c610 UD |
1088 | static unsigned char *freemem; |
1089 | static size_t freemem_size; | |
0a55a284 | 1090 | |
4e82c610 UD |
1091 | const unsigned char *inbuf; |
1092 | unsigned char *outbuf; | |
1093 | int malloc_count; | |
f8f900ec | 1094 | # ifndef _LIBC |
4e82c610 | 1095 | transmem_block_t *transmem_list = NULL; |
f8f900ec | 1096 | # endif |
0a55a284 | 1097 | |
4e82c610 UD |
1098 | inbuf = (const unsigned char *) result; |
1099 | outbuf = freemem + sizeof (size_t); | |
45eca4d1 | 1100 | |
4e82c610 UD |
1101 | malloc_count = 0; |
1102 | while (1) | |
1103 | { | |
1104 | transmem_block_t *newmem; | |
0a55a284 | 1105 | # ifdef _LIBC |
4e82c610 UD |
1106 | size_t non_reversible; |
1107 | int res; | |
17c389fc | 1108 | |
4e82c610 UD |
1109 | if (freemem_size < sizeof (size_t)) |
1110 | goto resize_freemem; | |
45eca4d1 | 1111 | |
4e82c610 UD |
1112 | res = __gconv (convd->conv, |
1113 | &inbuf, inbuf + resultlen, | |
1114 | &outbuf, | |
1115 | outbuf + freemem_size - sizeof (size_t), | |
1116 | &non_reversible); | |
17c389fc | 1117 | |
4e82c610 UD |
1118 | if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT) |
1119 | break; | |
17c389fc | 1120 | |
4e82c610 UD |
1121 | if (res != __GCONV_FULL_OUTPUT) |
1122 | { | |
4259230f UD |
1123 | /* We should not use the translation at all, it |
1124 | is incorrectly encoded. */ | |
4e82c610 | 1125 | __libc_lock_unlock (lock); |
4259230f | 1126 | return NULL; |
4e82c610 | 1127 | } |
17c389fc | 1128 | |
4e82c610 | 1129 | inbuf = (const unsigned char *) result; |
0a55a284 UD |
1130 | # else |
1131 | # if HAVE_ICONV | |
4e82c610 UD |
1132 | const char *inptr = (const char *) inbuf; |
1133 | size_t inleft = resultlen; | |
1134 | char *outptr = (char *) outbuf; | |
1135 | size_t outleft; | |
1136 | ||
1137 | if (freemem_size < sizeof (size_t)) | |
1138 | goto resize_freemem; | |
1139 | ||
1140 | outleft = freemem_size - sizeof (size_t); | |
1141 | if (iconv (convd->conv, | |
1142 | (ICONV_CONST char **) &inptr, &inleft, | |
1143 | &outptr, &outleft) | |
1144 | != (size_t) (-1)) | |
1145 | { | |
1146 | outbuf = (unsigned char *) outptr; | |
1147 | break; | |
1148 | } | |
1149 | if (errno != E2BIG) | |
1150 | { | |
1151 | __libc_lock_unlock (lock); | |
4259230f | 1152 | return NULL; |
4e82c610 | 1153 | } |
17c389fc UD |
1154 | # endif |
1155 | # endif | |
0a55a284 | 1156 | |
4e82c610 UD |
1157 | resize_freemem: |
1158 | /* We must allocate a new buffer or resize the old one. */ | |
1159 | if (malloc_count > 0) | |
1160 | { | |
1161 | ++malloc_count; | |
1162 | freemem_size = malloc_count * INITIAL_BLOCK_SIZE; | |
1163 | newmem = (transmem_block_t *) realloc (transmem_list, | |
1164 | freemem_size); | |
f8f900ec | 1165 | # ifdef _LIBC |
4e82c610 | 1166 | if (newmem != NULL) |
006dd861 | 1167 | transmem_list = newmem; |
4e82c610 UD |
1168 | else |
1169 | { | |
1170 | struct transmem_list *old = transmem_list; | |
1171 | ||
1172 | transmem_list = transmem_list->next; | |
1173 | free (old); | |
1174 | } | |
1175 | # endif | |
1176 | } | |
f8f900ec UD |
1177 | else |
1178 | { | |
4e82c610 UD |
1179 | malloc_count = 1; |
1180 | freemem_size = INITIAL_BLOCK_SIZE; | |
1181 | newmem = (transmem_block_t *) malloc (freemem_size); | |
006dd861 | 1182 | # ifdef _LIBC |
7a44c18f CD |
1183 | if (newmem != NULL) |
1184 | { | |
1185 | /* Add the block to the list of blocks we have to free | |
1186 | at some point. */ | |
1187 | newmem->next = transmem_list; | |
1188 | transmem_list = newmem; | |
1189 | } | |
1190 | /* Fall through and return -1. */ | |
006dd861 | 1191 | # endif |
4e82c610 | 1192 | } |
a1ffb40e | 1193 | if (__glibc_unlikely (newmem == NULL)) |
4e82c610 UD |
1194 | { |
1195 | freemem = NULL; | |
1196 | freemem_size = 0; | |
1197 | __libc_lock_unlock (lock); | |
4259230f | 1198 | return (char *) -1; |
f8f900ec | 1199 | } |
0a55a284 | 1200 | |
7f455351 | 1201 | # ifdef _LIBC |
4e82c610 UD |
1202 | freemem = (unsigned char *) newmem->data; |
1203 | freemem_size -= offsetof (struct transmem_list, data); | |
f8f900ec | 1204 | # else |
4e82c610 UD |
1205 | transmem_list = newmem; |
1206 | freemem = newmem; | |
7f455351 UD |
1207 | # endif |
1208 | ||
4e82c610 UD |
1209 | outbuf = freemem + sizeof (size_t); |
1210 | } | |
1211 | ||
1212 | /* We have now in our buffer a converted string. Put this | |
1213 | into the table of conversions. */ | |
1214 | *(size_t *) freemem = outbuf - freemem - sizeof (size_t); | |
1215 | convd->conv_tab[act] = (char *) freemem; | |
1216 | /* Shrink freemem, but keep it aligned. */ | |
1217 | freemem_size -= outbuf - freemem; | |
1218 | freemem = outbuf; | |
1219 | freemem += freemem_size & (alignof (size_t) - 1); | |
1220 | freemem_size = freemem_size & ~ (alignof (size_t) - 1); | |
1221 | ||
1222 | __libc_lock_unlock (lock); | |
0a55a284 | 1223 | } |
0a55a284 | 1224 | |
4e82c610 UD |
1225 | /* Now convd->conv_tab[act] contains the translation of all |
1226 | the plural variants. */ | |
1227 | result = convd->conv_tab[act] + sizeof (size_t); | |
1228 | resultlen = *(size_t *) convd->conv_tab[act]; | |
0a55a284 | 1229 | } |
0a55a284 UD |
1230 | } |
1231 | ||
0a55a284 UD |
1232 | /* The result string is converted. */ |
1233 | ||
1234 | #endif /* _LIBC || HAVE_ICONV */ | |
1235 | ||
f8f900ec UD |
1236 | *lengthp = resultlen; |
1237 | return result; | |
1238 | } | |
1239 | ||
1240 | ||
1241 | /* Look up a plural variant. */ | |
1242 | static char * | |
1243 | internal_function | |
1244 | plural_lookup (domain, n, translation, translation_len) | |
1245 | struct loaded_l10nfile *domain; | |
1246 | unsigned long int n; | |
1247 | const char *translation; | |
1248 | size_t translation_len; | |
1249 | { | |
1250 | struct loaded_domain *domaindata = (struct loaded_domain *) domain->data; | |
1251 | unsigned long int index; | |
1252 | const char *p; | |
1253 | ||
1254 | index = plural_eval (domaindata->plural, n); | |
1255 | if (index >= domaindata->nplurals) | |
1256 | /* This should never happen. It means the plural expression and the | |
1257 | given maximum value do not match. */ | |
1258 | index = 0; | |
1259 | ||
1260 | /* Skip INDEX strings at TRANSLATION. */ | |
1261 | p = translation; | |
0a55a284 UD |
1262 | while (index-- > 0) |
1263 | { | |
1264 | #ifdef _LIBC | |
f8f900ec | 1265 | p = __rawmemchr (p, '\0'); |
0a55a284 | 1266 | #else |
f8f900ec | 1267 | p = strchr (p, '\0'); |
0a55a284 UD |
1268 | #endif |
1269 | /* And skip over the NUL byte. */ | |
f8f900ec | 1270 | p++; |
abbffdf9 | 1271 | |
f8f900ec UD |
1272 | if (p >= translation + translation_len) |
1273 | /* This should never happen. It means the plural expression | |
1274 | evaluated to a value larger than the number of variants | |
1275 | available for MSGID1. */ | |
1276 | return (char *) translation; | |
1277 | } | |
1278 | return (char *) p; | |
abbffdf9 UD |
1279 | } |
1280 | ||
2b71beea | 1281 | #ifndef _LIBC |
abbffdf9 UD |
1282 | /* Return string representation of locale CATEGORY. */ |
1283 | static const char * | |
1284 | internal_function | |
1285 | category_to_name (category) | |
1286 | int category; | |
1287 | { | |
1288 | const char *retval; | |
1289 | ||
1290 | switch (category) | |
1291 | { | |
1292 | #ifdef LC_COLLATE | |
1293 | case LC_COLLATE: | |
1294 | retval = "LC_COLLATE"; | |
1295 | break; | |
1296 | #endif | |
1297 | #ifdef LC_CTYPE | |
1298 | case LC_CTYPE: | |
1299 | retval = "LC_CTYPE"; | |
1300 | break; | |
1301 | #endif | |
1302 | #ifdef LC_MONETARY | |
1303 | case LC_MONETARY: | |
1304 | retval = "LC_MONETARY"; | |
1305 | break; | |
1306 | #endif | |
1307 | #ifdef LC_NUMERIC | |
1308 | case LC_NUMERIC: | |
1309 | retval = "LC_NUMERIC"; | |
1310 | break; | |
1311 | #endif | |
1312 | #ifdef LC_TIME | |
1313 | case LC_TIME: | |
1314 | retval = "LC_TIME"; | |
1315 | break; | |
1316 | #endif | |
1317 | #ifdef LC_MESSAGES | |
1318 | case LC_MESSAGES: | |
1319 | retval = "LC_MESSAGES"; | |
1320 | break; | |
1321 | #endif | |
1322 | #ifdef LC_RESPONSE | |
1323 | case LC_RESPONSE: | |
1324 | retval = "LC_RESPONSE"; | |
1325 | break; | |
1326 | #endif | |
1327 | #ifdef LC_ALL | |
1328 | case LC_ALL: | |
1329 | /* This might not make sense but is perhaps better than any other | |
1330 | value. */ | |
1331 | retval = "LC_ALL"; | |
1332 | break; | |
1333 | #endif | |
1334 | default: | |
1335 | /* If you have a better idea for a default value let me know. */ | |
1336 | retval = "LC_XXX"; | |
1337 | } | |
1338 | ||
1339 | return retval; | |
1340 | } | |
2b71beea | 1341 | #endif |
abbffdf9 UD |
1342 | |
1343 | /* Guess value of current locale from value of the environment variables. */ | |
1344 | static const char * | |
1345 | internal_function | |
1346 | guess_category_value (category, categoryname) | |
1347 | int category; | |
1348 | const char *categoryname; | |
1349 | { | |
3859d27d | 1350 | const char *language; |
abbffdf9 UD |
1351 | const char *retval; |
1352 | ||
1353 | /* The highest priority value is the `LANGUAGE' environment | |
3859d27d UD |
1354 | variable. But we don't use the value if the currently selected |
1355 | locale is the C locale. This is a GNU extension. */ | |
1356 | language = getenv ("LANGUAGE"); | |
1357 | if (language != NULL && language[0] == '\0') | |
1358 | language = NULL; | |
1359 | ||
1360 | /* We have to proceed with the POSIX methods of looking to `LC_ALL', | |
1361 | `LC_xxx', and `LANG'. On some systems this can be done by the | |
1362 | `setlocale' function itself. */ | |
0555fcce | 1363 | #ifdef _LIBC |
30c14c31 | 1364 | retval = __current_locale_name (category); |
abbffdf9 | 1365 | #else |
0555fcce | 1366 | retval = _nl_locale_name (category, categoryname); |
abbffdf9 | 1367 | #endif |
3859d27d UD |
1368 | |
1369 | return language != NULL && strcmp (retval, "C") != 0 ? language : retval; | |
abbffdf9 UD |
1370 | } |
1371 | ||
4e82c610 UD |
1372 | #if defined _LIBC || HAVE_ICONV |
1373 | /* Returns the output charset. */ | |
1374 | static const char * | |
1375 | internal_function | |
1376 | get_output_charset (domainbinding) | |
1377 | struct binding *domainbinding; | |
1378 | { | |
1379 | /* The output charset should normally be determined by the locale. But | |
1380 | sometimes the locale is not used or not correctly set up, so we provide | |
1381 | a possibility for the user to override this: the OUTPUT_CHARSET | |
1382 | environment variable. Moreover, the value specified through | |
1383 | bind_textdomain_codeset overrides both. */ | |
1384 | if (domainbinding != NULL && domainbinding->codeset != NULL) | |
1385 | return domainbinding->codeset; | |
1386 | else | |
1387 | { | |
1388 | /* For speed reasons, we look at the value of OUTPUT_CHARSET only | |
1389 | once. This is a user variable that is not supposed to change | |
1390 | during a program run. */ | |
1391 | static char *output_charset_cache; | |
1392 | static int output_charset_cached; | |
1393 | ||
1394 | if (!output_charset_cached) | |
1395 | { | |
1396 | const char *value = getenv ("OUTPUT_CHARSET"); | |
1397 | ||
1398 | if (value != NULL && value[0] != '\0') | |
1399 | { | |
1400 | size_t len = strlen (value) + 1; | |
1401 | char *value_copy = (char *) malloc (len); | |
1402 | ||
1403 | if (value_copy != NULL) | |
1404 | memcpy (value_copy, value, len); | |
1405 | output_charset_cache = value_copy; | |
1406 | } | |
1407 | output_charset_cached = 1; | |
1408 | } | |
1409 | ||
1410 | if (output_charset_cache != NULL) | |
1411 | return output_charset_cache; | |
1412 | else | |
1413 | { | |
1414 | # ifdef _LIBC | |
1415 | return _NL_CURRENT (LC_CTYPE, CODESET); | |
1416 | # else | |
1417 | # if HAVE_ICONV | |
3ff94596 | 1418 | extern const char *locale_charset PARAMS ((void)); |
4e82c610 UD |
1419 | return locale_charset (); |
1420 | # endif | |
1421 | # endif | |
1422 | } | |
1423 | } | |
1424 | } | |
1425 | #endif | |
1426 | ||
abbffdf9 UD |
1427 | /* @@ begin of epilog @@ */ |
1428 | ||
1429 | /* We don't want libintl.a to depend on any other library. So we | |
1430 | avoid the non-standard function stpcpy. In GNU C Library this | |
1431 | function is available, though. Also allow the symbol HAVE_STPCPY | |
1432 | to be defined. */ | |
1433 | #if !_LIBC && !HAVE_STPCPY | |
1434 | static char * | |
1435 | stpcpy (dest, src) | |
1436 | char *dest; | |
1437 | const char *src; | |
1438 | { | |
1439 | while ((*dest++ = *src++) != '\0') | |
1440 | /* Do nothing. */ ; | |
1441 | return dest - 1; | |
1442 | } | |
1443 | #endif | |
1444 | ||
1445 | #if !_LIBC && !HAVE_MEMPCPY | |
1446 | static void * | |
1447 | mempcpy (dest, src, n) | |
1448 | void *dest; | |
1449 | const void *src; | |
1450 | size_t n; | |
1451 | { | |
b98f4e05 | 1452 | return (void *) ((char *) memcpy (dest, src, n) + n); |
abbffdf9 UD |
1453 | } |
1454 | #endif | |
1455 | ||
1456 | ||
1457 | #ifdef _LIBC | |
1458 | /* If we want to free all resources we have to do some work at | |
1459 | program's end. */ | |
c877418f | 1460 | libc_freeres_fn (free_mem) |
abbffdf9 | 1461 | { |
7f455351 | 1462 | void *old; |
abbffdf9 | 1463 | |
55e2d5c7 | 1464 | while (_nl_domain_bindings != NULL) |
17c389fc | 1465 | { |
55e2d5c7 UD |
1466 | struct binding *oldp = _nl_domain_bindings; |
1467 | _nl_domain_bindings = _nl_domain_bindings->next; | |
9cfe5381 | 1468 | if (oldp->dirname != _nl_default_dirname) |
17c389fc | 1469 | /* Yes, this is a pointer comparison. */ |
55e2d5c7 UD |
1470 | free (oldp->dirname); |
1471 | free (oldp->codeset); | |
1472 | free (oldp); | |
17c389fc | 1473 | } |
abbffdf9 UD |
1474 | |
1475 | if (_nl_current_default_domain != _nl_default_default_domain) | |
1476 | /* Yes, again a pointer comparison. */ | |
1477 | free ((char *) _nl_current_default_domain); | |
1478 | ||
17c389fc | 1479 | /* Remove the search tree with the known translations. */ |
abbffdf9 | 1480 | __tdestroy (root, free); |
55e2d5c7 | 1481 | root = NULL; |
7f455351 UD |
1482 | |
1483 | while (transmem_list != NULL) | |
1484 | { | |
1485 | old = transmem_list; | |
1486 | transmem_list = transmem_list->next; | |
1487 | free (old); | |
1488 | } | |
abbffdf9 | 1489 | } |
abbffdf9 | 1490 | #endif |