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abbffdf9 | 1 | /* Implementation of the internal dcigettext function. |
3ff94596 | 2 | Copyright (C) 1995-2005, 2006, 2007, 2008, 2009, 2011 |
9a69db29 | 3 | Free Software Foundation, Inc. |
41bdb6e2 | 4 | This file is part of the GNU C Library. |
abbffdf9 | 5 | |
abbffdf9 | 6 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
abbffdf9 UD |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
abbffdf9 | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
abbffdf9 | 20 | |
0a55a284 UD |
21 | /* Tell glibc's <string.h> to provide a prototype for mempcpy(). |
22 | This must come before <config.h> because <config.h> may include | |
23 | <features.h>, and once <features.h> has been included, it's too late. */ | |
24 | #ifndef _GNU_SOURCE | |
25 | # define _GNU_SOURCE 1 | |
26 | #endif | |
27 | ||
abbffdf9 UD |
28 | #ifdef HAVE_CONFIG_H |
29 | # include <config.h> | |
30 | #endif | |
31 | ||
32 | #include <sys/types.h> | |
33 | ||
0555fcce | 34 | #ifdef __GNUC__ |
abbffdf9 UD |
35 | # define alloca __builtin_alloca |
36 | # define HAVE_ALLOCA 1 | |
37 | #else | |
0555fcce | 38 | # if defined HAVE_ALLOCA_H || defined _LIBC |
abbffdf9 UD |
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 | ||
51 | #include <errno.h> | |
52 | #ifndef errno | |
53 | extern int errno; | |
54 | #endif | |
55 | #ifndef __set_errno | |
56 | # define __set_errno(val) errno = (val) | |
57 | #endif | |
58 | ||
0555fcce UD |
59 | #include <stddef.h> |
60 | #include <stdlib.h> | |
61 | #include <string.h> | |
abbffdf9 UD |
62 | |
63 | #if defined HAVE_UNISTD_H || defined _LIBC | |
64 | # include <unistd.h> | |
65 | #endif | |
66 | ||
0555fcce | 67 | #include <locale.h> |
abbffdf9 UD |
68 | |
69 | #if defined HAVE_SYS_PARAM_H || defined _LIBC | |
70 | # include <sys/param.h> | |
71 | #endif | |
72 | ||
abbffdf9 | 73 | #include "gettextP.h" |
0555fcce | 74 | #include "plural-exp.h" |
abbffdf9 UD |
75 | #ifdef _LIBC |
76 | # include <libintl.h> | |
77 | #else | |
4a4d50f3 | 78 | # include "libgnuintl.h" |
abbffdf9 UD |
79 | #endif |
80 | #include "hash-string.h" | |
81 | ||
82 | /* Thread safetyness. */ | |
83 | #ifdef _LIBC | |
84 | # include <bits/libc-lock.h> | |
0ed99ce4 UD |
85 | #else |
86 | /* Provide dummy implementation if this is outside glibc. */ | |
0a55a284 | 87 | # define __libc_lock_define_initialized(CLASS, NAME) |
0ed99ce4 UD |
88 | # define __libc_lock_lock(NAME) |
89 | # define __libc_lock_unlock(NAME) | |
0a55a284 UD |
90 | # define __libc_rwlock_define_initialized(CLASS, NAME) |
91 | # define __libc_rwlock_rdlock(NAME) | |
92 | # define __libc_rwlock_unlock(NAME) | |
abbffdf9 UD |
93 | #endif |
94 | ||
45eca4d1 UD |
95 | /* Alignment of types. */ |
96 | #if defined __GNUC__ && __GNUC__ >= 2 | |
97 | # define alignof(TYPE) __alignof__ (TYPE) | |
98 | #else | |
99 | # define alignof(TYPE) \ | |
100 | ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2) | |
101 | #endif | |
102 | ||
52d895a4 UD |
103 | /* The internal variables in the standalone libintl.a must have different |
104 | names than the internal variables in GNU libc, otherwise programs | |
105 | using libintl.a cannot be linked statically. */ | |
106 | #if !defined _LIBC | |
0f131646 RM |
107 | # define _nl_default_default_domain libintl_nl_default_default_domain |
108 | # define _nl_current_default_domain libintl_nl_current_default_domain | |
109 | # define _nl_default_dirname libintl_nl_default_dirname | |
110 | # define _nl_domain_bindings libintl_nl_domain_bindings | |
52d895a4 UD |
111 | #endif |
112 | ||
4a4d50f3 UD |
113 | /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */ |
114 | #ifndef offsetof | |
115 | # define offsetof(type,ident) ((size_t)&(((type*)0)->ident)) | |
116 | #endif | |
117 | ||
abbffdf9 UD |
118 | /* @@ end of prolog @@ */ |
119 | ||
120 | #ifdef _LIBC | |
121 | /* Rename the non ANSI C functions. This is required by the standard | |
122 | because some ANSI C functions will require linking with this object | |
123 | file and the name space must not be polluted. */ | |
124 | # define getcwd __getcwd | |
125 | # ifndef stpcpy | |
126 | # define stpcpy __stpcpy | |
127 | # endif | |
4aebaa6b | 128 | # define tfind __tfind |
abbffdf9 UD |
129 | #else |
130 | # if !defined HAVE_GETCWD | |
131 | char *getwd (); | |
132 | # define getcwd(buf, max) getwd (buf) | |
133 | # else | |
134 | char *getcwd (); | |
135 | # endif | |
136 | # ifndef HAVE_STPCPY | |
137 | static char *stpcpy PARAMS ((char *dest, const char *src)); | |
138 | # endif | |
139 | # ifndef HAVE_MEMPCPY | |
140 | static void *mempcpy PARAMS ((void *dest, const void *src, size_t n)); | |
141 | # endif | |
142 | #endif | |
143 | ||
144 | /* Amount to increase buffer size by in each try. */ | |
145 | #define PATH_INCR 32 | |
146 | ||
147 | /* The following is from pathmax.h. */ | |
148 | /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define | |
149 | PATH_MAX but might cause redefinition warnings when sys/param.h is | |
150 | later included (as on MORE/BSD 4.3). */ | |
151 | #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__) | |
152 | # include <limits.h> | |
153 | #endif | |
154 | ||
155 | #ifndef _POSIX_PATH_MAX | |
156 | # define _POSIX_PATH_MAX 255 | |
157 | #endif | |
158 | ||
159 | #if !defined PATH_MAX && defined _PC_PATH_MAX | |
160 | # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX)) | |
161 | #endif | |
162 | ||
163 | /* Don't include sys/param.h if it already has been. */ | |
164 | #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN | |
165 | # include <sys/param.h> | |
166 | #endif | |
167 | ||
168 | #if !defined PATH_MAX && defined MAXPATHLEN | |
169 | # define PATH_MAX MAXPATHLEN | |
170 | #endif | |
171 | ||
172 | #ifndef PATH_MAX | |
173 | # define PATH_MAX _POSIX_PATH_MAX | |
174 | #endif | |
175 | ||
8406a53a UD |
176 | /* Whether to support different locales in different threads. */ |
177 | #if defined _LIBC || HAVE_NL_LOCALE_NAME | |
178 | # define HAVE_PER_THREAD_LOCALE | |
179 | #endif | |
180 | ||
abbffdf9 UD |
181 | /* This is the type used for the search tree where known translations |
182 | are stored. */ | |
183 | struct known_translation_t | |
184 | { | |
185 | /* Domain in which to search. */ | |
edac4240 | 186 | const char *domainname; |
abbffdf9 UD |
187 | |
188 | /* The category. */ | |
189 | int category; | |
190 | ||
8406a53a UD |
191 | #ifdef HAVE_PER_THREAD_LOCALE |
192 | /* Name of the relevant locale category, or "" for the global locale. */ | |
193 | const char *localename; | |
194 | #endif | |
195 | ||
abbffdf9 UD |
196 | /* State of the catalog counter at the point the string was found. */ |
197 | int counter; | |
198 | ||
f8f900ec UD |
199 | /* Catalog where the string was found. */ |
200 | struct loaded_l10nfile *domain; | |
201 | ||
abbffdf9 UD |
202 | /* And finally the translation. */ |
203 | const char *translation; | |
f8f900ec | 204 | size_t translation_length; |
abbffdf9 UD |
205 | |
206 | /* Pointer to the string in question. */ | |
80b286ed UD |
207 | union |
208 | { | |
209 | char appended[ZERO]; /* used if domain != NULL */ | |
210 | const char *ptr; /* used if domain == NULL */ | |
211 | } | |
212 | msgid; | |
abbffdf9 UD |
213 | }; |
214 | ||
215 | /* Root of the search tree with known translations. We can use this | |
216 | only if the system provides the `tsearch' function family. */ | |
217 | #if defined HAVE_TSEARCH || defined _LIBC | |
218 | # include <search.h> | |
219 | ||
220 | static void *root; | |
221 | ||
222 | # ifdef _LIBC | |
223 | # define tsearch __tsearch | |
224 | # endif | |
225 | ||
226 | /* Function to compare two entries in the table of known translations. */ | |
4a4d50f3 | 227 | static int transcmp PARAMS ((const void *p1, const void *p2)); |
abbffdf9 | 228 | static int |
4a4d50f3 UD |
229 | transcmp (p1, p2) |
230 | const void *p1; | |
231 | const void *p2; | |
abbffdf9 | 232 | { |
ad5b53b1 UD |
233 | const struct known_translation_t *s1; |
234 | const struct known_translation_t *s2; | |
abbffdf9 UD |
235 | int result; |
236 | ||
ad5b53b1 UD |
237 | s1 = (const struct known_translation_t *) p1; |
238 | s2 = (const struct known_translation_t *) p2; | |
239 | ||
80b286ed UD |
240 | result = strcmp (s1->domain != NULL ? s1->msgid.appended : s1->msgid.ptr, |
241 | s2->domain != NULL ? s2->msgid.appended : s2->msgid.ptr); | |
abbffdf9 UD |
242 | if (result == 0) |
243 | { | |
f8f900ec | 244 | result = strcmp (s1->domainname, s2->domainname); |
abbffdf9 | 245 | if (result == 0) |
8406a53a UD |
246 | { |
247 | #ifdef HAVE_PER_THREAD_LOCALE | |
248 | result = strcmp (s1->localename, s2->localename); | |
249 | if (result == 0) | |
250 | #endif | |
251 | /* We compare the category last (though this is the cheapest | |
252 | operation) since it is hopefully always the same (namely | |
253 | LC_MESSAGES). */ | |
254 | result = s1->category - s2->category; | |
255 | } | |
abbffdf9 UD |
256 | } |
257 | ||
258 | return result; | |
259 | } | |
260 | #endif | |
261 | ||
262 | /* Name of the default domain used for gettext(3) prior any call to | |
263 | textdomain(3). The default value for this is "messages". */ | |
418f1701 | 264 | const char _nl_default_default_domain[] attribute_hidden = "messages"; |
abbffdf9 UD |
265 | |
266 | /* Value used as the default domain for gettext(3). */ | |
418f1701 UD |
267 | const char *_nl_current_default_domain attribute_hidden |
268 | = _nl_default_default_domain; | |
abbffdf9 UD |
269 | |
270 | /* Contains the default location of the message catalogs. */ | |
9cfe5381 RM |
271 | |
272 | #ifdef _LIBC | |
273 | extern const char _nl_default_dirname[]; | |
274 | libc_hidden_proto (_nl_default_dirname) | |
275 | #endif | |
4a4d50f3 | 276 | const char _nl_default_dirname[] = LOCALEDIR; |
9cfe5381 RM |
277 | #ifdef _LIBC |
278 | libc_hidden_data_def (_nl_default_dirname) | |
279 | #endif | |
abbffdf9 UD |
280 | |
281 | /* List with bindings of specific domains created by bindtextdomain() | |
282 | calls. */ | |
283 | struct binding *_nl_domain_bindings; | |
284 | ||
285 | /* Prototypes for local functions. */ | |
f8f900ec UD |
286 | static char *plural_lookup PARAMS ((struct loaded_l10nfile *domain, |
287 | unsigned long int n, | |
288 | const char *translation, | |
289 | size_t translation_len)) | |
290 | internal_function; | |
abbffdf9 UD |
291 | static const char *guess_category_value PARAMS ((int category, |
292 | const char *categoryname)) | |
293 | internal_function; | |
2b71beea RM |
294 | #ifdef _LIBC |
295 | # include "../locale/localeinfo.h" | |
9446614c UD |
296 | # define category_to_name(category) \ |
297 | _nl_category_names.str + _nl_category_name_idxs[category] | |
2b71beea RM |
298 | #else |
299 | static const char *category_to_name PARAMS ((int category)) internal_function; | |
300 | #endif | |
abbffdf9 UD |
301 | |
302 | ||
303 | /* For those loosing systems which don't have `alloca' we have to add | |
304 | some additional code emulating it. */ | |
305 | #ifdef HAVE_ALLOCA | |
306 | /* Nothing has to be done. */ | |
0f131646 | 307 | # define freea(p) /* nothing */ |
abbffdf9 UD |
308 | # define ADD_BLOCK(list, address) /* nothing */ |
309 | # define FREE_BLOCKS(list) /* nothing */ | |
310 | #else | |
311 | struct block_list | |
312 | { | |
313 | void *address; | |
314 | struct block_list *next; | |
315 | }; | |
316 | # define ADD_BLOCK(list, addr) \ | |
317 | do { \ | |
318 | struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \ | |
319 | /* If we cannot get a free block we cannot add the new element to \ | |
320 | the list. */ \ | |
321 | if (newp != NULL) { \ | |
322 | newp->address = (addr); \ | |
323 | newp->next = (list); \ | |
324 | (list) = newp; \ | |
325 | } \ | |
326 | } while (0) | |
327 | # define FREE_BLOCKS(list) \ | |
328 | do { \ | |
329 | while (list != NULL) { \ | |
330 | struct block_list *old = list; \ | |
331 | list = list->next; \ | |
0f131646 | 332 | free (old->address); \ |
abbffdf9 UD |
333 | free (old); \ |
334 | } \ | |
335 | } while (0) | |
336 | # undef alloca | |
337 | # define alloca(size) (malloc (size)) | |
0f131646 | 338 | # define freea(p) free (p) |
abbffdf9 UD |
339 | #endif /* have alloca */ |
340 | ||
341 | ||
f8f900ec | 342 | #ifdef _LIBC |
7f455351 | 343 | /* List of blocks allocated for translations. */ |
f8f900ec | 344 | typedef struct transmem_list |
7f455351 UD |
345 | { |
346 | struct transmem_list *next; | |
4a4d50f3 | 347 | char data[ZERO]; |
f8f900ec UD |
348 | } transmem_block_t; |
349 | static struct transmem_list *transmem_list; | |
350 | #else | |
e686e1a1 | 351 | typedef unsigned char transmem_block_t; |
f8f900ec | 352 | #endif |
4e82c610 UD |
353 | #if defined _LIBC || HAVE_ICONV |
354 | static const char *get_output_charset PARAMS ((struct binding *domainbinding)) | |
355 | internal_function; | |
356 | #endif | |
7f455351 UD |
357 | |
358 | ||
abbffdf9 UD |
359 | /* Names for the libintl functions are a problem. They must not clash |
360 | with existing names and they should follow ANSI C. But this source | |
361 | code is also used in GNU C Library where the names have a __ | |
362 | prefix. So we have to make a difference here. */ | |
363 | #ifdef _LIBC | |
364 | # define DCIGETTEXT __dcigettext | |
365 | #else | |
0f131646 | 366 | # define DCIGETTEXT libintl_dcigettext |
abbffdf9 UD |
367 | #endif |
368 | ||
0ed99ce4 | 369 | /* Lock variable to protect the global data in the gettext implementation. */ |
0555fcce | 370 | #ifdef _LIBC |
418f1701 | 371 | __libc_rwlock_define_initialized (, _nl_state_lock attribute_hidden) |
0555fcce | 372 | #endif |
0ed99ce4 | 373 | |
abbffdf9 UD |
374 | /* Checking whether the binaries runs SUID must be done and glibc provides |
375 | easier methods therefore we make a difference here. */ | |
376 | #ifdef _LIBC | |
377 | # define ENABLE_SECURE __libc_enable_secure | |
378 | # define DETERMINE_SECURE | |
379 | #else | |
0f131646 RM |
380 | # ifndef HAVE_GETUID |
381 | # define getuid() 0 | |
382 | # endif | |
383 | # ifndef HAVE_GETGID | |
384 | # define getgid() 0 | |
385 | # endif | |
386 | # ifndef HAVE_GETEUID | |
387 | # define geteuid() getuid() | |
388 | # endif | |
389 | # ifndef HAVE_GETEGID | |
390 | # define getegid() getgid() | |
391 | # endif | |
abbffdf9 UD |
392 | static int enable_secure; |
393 | # define ENABLE_SECURE (enable_secure == 1) | |
394 | # define DETERMINE_SECURE \ | |
395 | if (enable_secure == 0) \ | |
396 | { \ | |
397 | if (getuid () != geteuid () || getgid () != getegid ()) \ | |
398 | enable_secure = 1; \ | |
399 | else \ | |
400 | enable_secure = -1; \ | |
401 | } | |
402 | #endif | |
403 | ||
0555fcce UD |
404 | /* Get the function to evaluate the plural expression. */ |
405 | #include "plural-eval.c" | |
406 | ||
abbffdf9 UD |
407 | /* Look up MSGID in the DOMAINNAME message catalog for the current |
408 | CATEGORY locale and, if PLURAL is nonzero, search over string | |
409 | depending on the plural form determined by N. */ | |
410 | char * | |
411 | DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category) | |
412 | const char *domainname; | |
413 | const char *msgid1; | |
414 | const char *msgid2; | |
415 | int plural; | |
416 | unsigned long int n; | |
417 | int category; | |
418 | { | |
419 | #ifndef HAVE_ALLOCA | |
420 | struct block_list *block_list = NULL; | |
421 | #endif | |
422 | struct loaded_l10nfile *domain; | |
423 | struct binding *binding; | |
424 | const char *categoryname; | |
425 | const char *categoryvalue; | |
426 | char *dirname, *xdomainname; | |
427 | char *single_locale; | |
428 | char *retval; | |
f8f900ec | 429 | size_t retlen; |
abbffdf9 UD |
430 | int saved_errno; |
431 | #if defined HAVE_TSEARCH || defined _LIBC | |
80b286ed | 432 | struct known_translation_t search; |
abbffdf9 | 433 | struct known_translation_t **foundp = NULL; |
8406a53a UD |
434 | # ifdef HAVE_PER_THREAD_LOCALE |
435 | const char *localename; | |
436 | # endif | |
abbffdf9 UD |
437 | #endif |
438 | size_t domainname_len; | |
439 | ||
440 | /* If no real MSGID is given return NULL. */ | |
441 | if (msgid1 == NULL) | |
442 | return NULL; | |
443 | ||
2b71beea RM |
444 | #ifdef _LIBC |
445 | if (category < 0 || category >= __LC_LAST || category == LC_ALL) | |
446 | /* Bogus. */ | |
447 | return (plural == 0 | |
448 | ? (char *) msgid1 | |
449 | /* Use the Germanic plural rule. */ | |
450 | : n == 1 ? (char *) msgid1 : (char *) msgid2); | |
451 | #endif | |
452 | ||
9a69db29 UD |
453 | #ifdef _LIBC |
454 | __libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden) | |
455 | __libc_rwlock_rdlock (__libc_setlocale_lock); | |
456 | #endif | |
457 | ||
0ed99ce4 UD |
458 | __libc_rwlock_rdlock (_nl_state_lock); |
459 | ||
17c389fc UD |
460 | /* If DOMAINNAME is NULL, we are interested in the default domain. If |
461 | CATEGORY is not LC_MESSAGES this might not make much sense but the | |
462 | definition left this undefined. */ | |
463 | if (domainname == NULL) | |
464 | domainname = _nl_current_default_domain; | |
465 | ||
abbffdf9 | 466 | #if defined HAVE_TSEARCH || defined _LIBC |
f8f900ec UD |
467 | /* Try to find the translation among those which we found at |
468 | some time. */ | |
80b286ed UD |
469 | search.domain = NULL; |
470 | search.msgid.ptr = msgid1; | |
471 | search.domainname = domainname; | |
472 | search.category = category; | |
8406a53a UD |
473 | # ifdef HAVE_PER_THREAD_LOCALE |
474 | # ifdef _LIBC | |
9a69db29 | 475 | localename = strdupa (__current_locale_name (category)); |
8406a53a | 476 | # endif |
80b286ed | 477 | search.localename = localename; |
8406a53a | 478 | # endif |
f8f900ec | 479 | |
ce7265c7 UD |
480 | /* Since tfind/tsearch manage a balanced tree, concurrent tfind and |
481 | tsearch calls can be fatal. */ | |
482 | __libc_rwlock_define_initialized (static, tree_lock); | |
483 | __libc_rwlock_rdlock (tree_lock); | |
484 | ||
80b286ed | 485 | foundp = (struct known_translation_t **) tfind (&search, &root, transcmp); |
ce7265c7 UD |
486 | |
487 | __libc_rwlock_unlock (tree_lock); | |
488 | ||
f8f900ec | 489 | if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr) |
abbffdf9 | 490 | { |
f8f900ec UD |
491 | /* Now deal with plural. */ |
492 | if (plural) | |
493 | retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation, | |
494 | (*foundp)->translation_length); | |
495 | else | |
496 | retval = (char *) (*foundp)->translation; | |
497 | ||
9a69db29 UD |
498 | # ifdef _LIBC |
499 | __libc_rwlock_unlock (__libc_setlocale_lock); | |
500 | # endif | |
f8f900ec UD |
501 | __libc_rwlock_unlock (_nl_state_lock); |
502 | return retval; | |
abbffdf9 UD |
503 | } |
504 | #endif | |
505 | ||
506 | /* Preserve the `errno' value. */ | |
507 | saved_errno = errno; | |
508 | ||
509 | /* See whether this is a SUID binary or not. */ | |
510 | DETERMINE_SECURE; | |
511 | ||
abbffdf9 UD |
512 | /* First find matching binding. */ |
513 | for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) | |
514 | { | |
515 | int compare = strcmp (domainname, binding->domainname); | |
516 | if (compare == 0) | |
517 | /* We found it! */ | |
518 | break; | |
519 | if (compare < 0) | |
520 | { | |
521 | /* It is not in the list. */ | |
522 | binding = NULL; | |
523 | break; | |
524 | } | |
525 | } | |
526 | ||
527 | if (binding == NULL) | |
9cfe5381 | 528 | dirname = (char *) _nl_default_dirname; |
abbffdf9 UD |
529 | else if (binding->dirname[0] == '/') |
530 | dirname = binding->dirname; | |
531 | else | |
532 | { | |
533 | /* We have a relative path. Make it absolute now. */ | |
534 | size_t dirname_len = strlen (binding->dirname) + 1; | |
535 | size_t path_max; | |
536 | char *ret; | |
537 | ||
538 | path_max = (unsigned int) PATH_MAX; | |
539 | path_max += 2; /* The getcwd docs say to do this. */ | |
540 | ||
0555fcce | 541 | for (;;) |
abbffdf9 | 542 | { |
abbffdf9 UD |
543 | dirname = (char *) alloca (path_max + dirname_len); |
544 | ADD_BLOCK (block_list, dirname); | |
0555fcce | 545 | |
abbffdf9 | 546 | __set_errno (0); |
0555fcce UD |
547 | ret = getcwd (dirname, path_max); |
548 | if (ret != NULL || errno != ERANGE) | |
549 | break; | |
550 | ||
551 | path_max += path_max / 2; | |
552 | path_max += PATH_INCR; | |
abbffdf9 UD |
553 | } |
554 | ||
555 | if (ret == NULL) | |
52de761a | 556 | goto no_translation; |
abbffdf9 UD |
557 | |
558 | stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname); | |
559 | } | |
560 | ||
561 | /* Now determine the symbolic name of CATEGORY and its value. */ | |
562 | categoryname = category_to_name (category); | |
563 | categoryvalue = guess_category_value (category, categoryname); | |
564 | ||
565 | domainname_len = strlen (domainname); | |
566 | xdomainname = (char *) alloca (strlen (categoryname) | |
567 | + domainname_len + 5); | |
568 | ADD_BLOCK (block_list, xdomainname); | |
569 | ||
570 | stpcpy (mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"), | |
571 | domainname, domainname_len), | |
572 | ".mo"); | |
573 | ||
574 | /* Creating working area. */ | |
575 | single_locale = (char *) alloca (strlen (categoryvalue) + 1); | |
576 | ADD_BLOCK (block_list, single_locale); | |
577 | ||
578 | ||
579 | /* Search for the given string. This is a loop because we perhaps | |
580 | got an ordered list of languages to consider for the translation. */ | |
581 | while (1) | |
582 | { | |
583 | /* Make CATEGORYVALUE point to the next element of the list. */ | |
584 | while (categoryvalue[0] != '\0' && categoryvalue[0] == ':') | |
585 | ++categoryvalue; | |
586 | if (categoryvalue[0] == '\0') | |
587 | { | |
588 | /* The whole contents of CATEGORYVALUE has been searched but | |
589 | no valid entry has been found. We solve this situation | |
590 | by implicitly appending a "C" entry, i.e. no translation | |
591 | will take place. */ | |
592 | single_locale[0] = 'C'; | |
593 | single_locale[1] = '\0'; | |
594 | } | |
595 | else | |
596 | { | |
597 | char *cp = single_locale; | |
598 | while (categoryvalue[0] != '\0' && categoryvalue[0] != ':') | |
599 | *cp++ = *categoryvalue++; | |
600 | *cp = '\0'; | |
601 | ||
602 | /* When this is a SUID binary we must not allow accessing files | |
603 | outside the dedicated directories. */ | |
6adc15f5 | 604 | if (ENABLE_SECURE && strchr (single_locale, '/') != NULL) |
abbffdf9 UD |
605 | /* Ingore this entry. */ |
606 | continue; | |
607 | } | |
608 | ||
609 | /* If the current locale value is C (or POSIX) we don't load a | |
610 | domain. Return the MSGID. */ | |
611 | if (strcmp (single_locale, "C") == 0 | |
612 | || strcmp (single_locale, "POSIX") == 0) | |
613 | { | |
4259230f | 614 | no_translation: |
abbffdf9 | 615 | FREE_BLOCKS (block_list); |
9a69db29 | 616 | __libc_rwlock_unlock (__libc_setlocale_lock); |
0ed99ce4 | 617 | __libc_rwlock_unlock (_nl_state_lock); |
abbffdf9 UD |
618 | __set_errno (saved_errno); |
619 | return (plural == 0 | |
620 | ? (char *) msgid1 | |
621 | /* Use the Germanic plural rule. */ | |
622 | : n == 1 ? (char *) msgid1 : (char *) msgid2); | |
623 | } | |
624 | ||
625 | ||
626 | /* Find structure describing the message catalog matching the | |
627 | DOMAINNAME and CATEGORY. */ | |
17c389fc | 628 | domain = _nl_find_domain (dirname, single_locale, xdomainname, binding); |
abbffdf9 UD |
629 | |
630 | if (domain != NULL) | |
631 | { | |
4e82c610 | 632 | retval = _nl_find_msg (domain, binding, msgid1, 1, &retlen); |
abbffdf9 UD |
633 | |
634 | if (retval == NULL) | |
635 | { | |
636 | int cnt; | |
637 | ||
638 | for (cnt = 0; domain->successor[cnt] != NULL; ++cnt) | |
639 | { | |
c44a663d | 640 | retval = _nl_find_msg (domain->successor[cnt], binding, |
4e82c610 | 641 | msgid1, 1, &retlen); |
abbffdf9 UD |
642 | |
643 | if (retval != NULL) | |
f8f900ec UD |
644 | { |
645 | domain = domain->successor[cnt]; | |
646 | break; | |
647 | } | |
abbffdf9 UD |
648 | } |
649 | } | |
650 | ||
4259230f UD |
651 | /* Returning -1 means that some resource problem exists |
652 | (likely memory) and that the strings could not be | |
653 | converted. Return the original strings. */ | |
654 | if (__builtin_expect (retval == (char *) -1, 0)) | |
655 | goto no_translation; | |
656 | ||
abbffdf9 UD |
657 | if (retval != NULL) |
658 | { | |
f8f900ec UD |
659 | /* Found the translation of MSGID1 in domain DOMAIN: |
660 | starting at RETVAL, RETLEN bytes. */ | |
abbffdf9 | 661 | FREE_BLOCKS (block_list); |
abbffdf9 UD |
662 | #if defined HAVE_TSEARCH || defined _LIBC |
663 | if (foundp == NULL) | |
664 | { | |
665 | /* Create a new entry and add it to the search tree. */ | |
80b286ed | 666 | size_t msgid_len; |
8406a53a | 667 | size_t size; |
abbffdf9 UD |
668 | struct known_translation_t *newp; |
669 | ||
80b286ed | 670 | msgid_len = strlen (msgid1) + 1; |
8406a53a UD |
671 | size = offsetof (struct known_translation_t, msgid) |
672 | + msgid_len + domainname_len + 1; | |
673 | # ifdef HAVE_PER_THREAD_LOCALE | |
674 | size += strlen (localename) + 1; | |
675 | # endif | |
676 | newp = (struct known_translation_t *) malloc (size); | |
abbffdf9 UD |
677 | if (newp != NULL) |
678 | { | |
edac4240 | 679 | char *new_domainname; |
8406a53a UD |
680 | # ifdef HAVE_PER_THREAD_LOCALE |
681 | char *new_localename; | |
682 | # endif | |
edac4240 | 683 | |
80b286ed UD |
684 | new_domainname = |
685 | mempcpy (newp->msgid.appended, msgid1, msgid_len); | |
edac4240 | 686 | memcpy (new_domainname, domainname, domainname_len + 1); |
8406a53a UD |
687 | # ifdef HAVE_PER_THREAD_LOCALE |
688 | new_localename = new_domainname + domainname_len + 1; | |
689 | strcpy (new_localename, localename); | |
690 | # endif | |
edac4240 | 691 | newp->domainname = new_domainname; |
abbffdf9 | 692 | newp->category = category; |
8406a53a UD |
693 | # ifdef HAVE_PER_THREAD_LOCALE |
694 | newp->localename = new_localename; | |
695 | # endif | |
abbffdf9 | 696 | newp->counter = _nl_msg_cat_cntr; |
f8f900ec | 697 | newp->domain = domain; |
abbffdf9 | 698 | newp->translation = retval; |
f8f900ec | 699 | newp->translation_length = retlen; |
abbffdf9 | 700 | |
ce7265c7 UD |
701 | __libc_rwlock_wrlock (tree_lock); |
702 | ||
abbffdf9 UD |
703 | /* Insert the entry in the search tree. */ |
704 | foundp = (struct known_translation_t **) | |
705 | tsearch (newp, &root, transcmp); | |
ce7265c7 UD |
706 | |
707 | __libc_rwlock_unlock (tree_lock); | |
708 | ||
d89d0afa UD |
709 | if (foundp == NULL |
710 | || __builtin_expect (*foundp != newp, 0)) | |
abbffdf9 UD |
711 | /* The insert failed. */ |
712 | free (newp); | |
713 | } | |
714 | } | |
715 | else | |
716 | { | |
717 | /* We can update the existing entry. */ | |
718 | (*foundp)->counter = _nl_msg_cat_cntr; | |
f8f900ec | 719 | (*foundp)->domain = domain; |
abbffdf9 | 720 | (*foundp)->translation = retval; |
f8f900ec | 721 | (*foundp)->translation_length = retlen; |
abbffdf9 UD |
722 | } |
723 | #endif | |
7f4dce05 RM |
724 | __set_errno (saved_errno); |
725 | ||
f8f900ec UD |
726 | /* Now deal with plural. */ |
727 | if (plural) | |
728 | retval = plural_lookup (domain, n, retval, retlen); | |
729 | ||
9a69db29 | 730 | __libc_rwlock_unlock (__libc_setlocale_lock); |
0ed99ce4 | 731 | __libc_rwlock_unlock (_nl_state_lock); |
abbffdf9 UD |
732 | return retval; |
733 | } | |
734 | } | |
735 | } | |
736 | /* NOTREACHED */ | |
737 | } | |
738 | ||
739 | ||
740 | char * | |
741 | internal_function | |
4e82c610 | 742 | _nl_find_msg (domain_file, domainbinding, msgid, convert, lengthp) |
abbffdf9 | 743 | struct loaded_l10nfile *domain_file; |
c44a663d | 744 | struct binding *domainbinding; |
abbffdf9 | 745 | const char *msgid; |
4e82c610 | 746 | int convert; |
f8f900ec | 747 | size_t *lengthp; |
abbffdf9 | 748 | { |
354e6102 | 749 | struct loaded_domain *domain; |
3172f58f | 750 | nls_uint32 nstrings; |
0a55a284 UD |
751 | size_t act; |
752 | char *result; | |
f8f900ec | 753 | size_t resultlen; |
abbffdf9 | 754 | |
ce7265c7 | 755 | if (domain_file->decided <= 0) |
c44a663d | 756 | _nl_load_domain (domain_file, domainbinding); |
abbffdf9 UD |
757 | |
758 | if (domain_file->data == NULL) | |
759 | return NULL; | |
760 | ||
354e6102 | 761 | domain = (struct loaded_domain *) domain_file->data; |
abbffdf9 | 762 | |
3172f58f UD |
763 | nstrings = domain->nstrings; |
764 | ||
abbffdf9 | 765 | /* Locate the MSGID and its translation. */ |
3172f58f | 766 | if (domain->hash_tab != NULL) |
abbffdf9 UD |
767 | { |
768 | /* Use the hashing table. */ | |
769 | nls_uint32 len = strlen (msgid); | |
dd9423a6 | 770 | nls_uint32 hash_val = __hash_string (msgid); |
abbffdf9 UD |
771 | nls_uint32 idx = hash_val % domain->hash_size; |
772 | nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2)); | |
abbffdf9 | 773 | |
abbffdf9 UD |
774 | while (1) |
775 | { | |
3172f58f UD |
776 | nls_uint32 nstr = |
777 | W (domain->must_swap_hash_tab, domain->hash_tab[idx]); | |
4a4d50f3 UD |
778 | |
779 | if (nstr == 0) | |
780 | /* Hash table entry is empty. */ | |
781 | return NULL; | |
782 | ||
3172f58f UD |
783 | nstr--; |
784 | ||
785 | /* Compare msgid with the original string at index nstr. | |
f8f900ec UD |
786 | We compare the lengths with >=, not ==, because plural entries |
787 | are represented by strings with an embedded NUL. */ | |
3172f58f UD |
788 | if (nstr < nstrings |
789 | ? W (domain->must_swap, domain->orig_tab[nstr].length) >= len | |
790 | && (strcmp (msgid, | |
791 | domain->data + W (domain->must_swap, | |
792 | domain->orig_tab[nstr].offset)) | |
793 | == 0) | |
794 | : domain->orig_sysdep_tab[nstr - nstrings].length > len | |
795 | && (strcmp (msgid, | |
796 | domain->orig_sysdep_tab[nstr - nstrings].pointer) | |
797 | == 0)) | |
f8f900ec | 798 | { |
3172f58f | 799 | act = nstr; |
f8f900ec UD |
800 | goto found; |
801 | } | |
802 | ||
abbffdf9 UD |
803 | if (idx >= domain->hash_size - incr) |
804 | idx -= domain->hash_size - incr; | |
805 | else | |
806 | idx += incr; | |
abbffdf9 UD |
807 | } |
808 | /* NOTREACHED */ | |
809 | } | |
0a55a284 UD |
810 | else |
811 | { | |
812 | /* Try the default method: binary search in the sorted array of | |
813 | messages. */ | |
814 | size_t top, bottom; | |
815 | ||
816 | bottom = 0; | |
3172f58f | 817 | top = nstrings; |
0a55a284 UD |
818 | while (bottom < top) |
819 | { | |
820 | int cmp_val; | |
821 | ||
822 | act = (bottom + top) / 2; | |
823 | cmp_val = strcmp (msgid, (domain->data | |
824 | + W (domain->must_swap, | |
825 | domain->orig_tab[act].offset))); | |
826 | if (cmp_val < 0) | |
827 | top = act; | |
828 | else if (cmp_val > 0) | |
829 | bottom = act + 1; | |
830 | else | |
831 | goto found; | |
832 | } | |
833 | /* No translation was found. */ | |
834 | return NULL; | |
835 | } | |
abbffdf9 | 836 | |
0a55a284 UD |
837 | found: |
838 | /* The translation was found at index ACT. If we have to convert the | |
839 | string to use a different character set, this is the time. */ | |
3172f58f UD |
840 | if (act < nstrings) |
841 | { | |
842 | result = (char *) | |
843 | (domain->data + W (domain->must_swap, domain->trans_tab[act].offset)); | |
844 | resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1; | |
845 | } | |
846 | else | |
847 | { | |
848 | result = (char *) domain->trans_sysdep_tab[act - nstrings].pointer; | |
849 | resultlen = domain->trans_sysdep_tab[act - nstrings].length; | |
850 | } | |
0a55a284 UD |
851 | |
852 | #if defined _LIBC || HAVE_ICONV | |
4e82c610 | 853 | if (convert) |
c44a663d | 854 | { |
4e82c610 UD |
855 | /* We are supposed to do a conversion. */ |
856 | const char *encoding = get_output_charset (domainbinding); | |
857 | ||
408cfca0 UD |
858 | /* Protect against reallocation of the table. */ |
859 | __libc_rwlock_rdlock (domain->conversions_lock); | |
860 | ||
4e82c610 UD |
861 | /* Search whether a table with converted translations for this |
862 | encoding has already been allocated. */ | |
863 | size_t nconversions = domain->nconversions; | |
864 | struct converted_domain *convd = NULL; | |
865 | size_t i; | |
866 | ||
867 | for (i = nconversions; i > 0; ) | |
868 | { | |
869 | i--; | |
870 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) | |
871 | { | |
872 | convd = &domain->conversions[i]; | |
873 | break; | |
874 | } | |
875 | } | |
0ecb606c | 876 | |
408cfca0 UD |
877 | __libc_rwlock_unlock (domain->conversions_lock); |
878 | ||
4e82c610 UD |
879 | if (convd == NULL) |
880 | { | |
408cfca0 UD |
881 | /* We have to allocate a new conversions table. */ |
882 | __libc_rwlock_wrlock (domain->conversions_lock); | |
2ecc7d93 | 883 | nconversions = domain->nconversions; |
408cfca0 UD |
884 | |
885 | /* Maybe in the meantime somebody added the translation. | |
886 | Recheck. */ | |
887 | for (i = nconversions; i > 0; ) | |
888 | { | |
889 | i--; | |
890 | if (strcmp (domain->conversions[i].encoding, encoding) == 0) | |
891 | { | |
892 | convd = &domain->conversions[i]; | |
893 | goto found_convd; | |
894 | } | |
895 | } | |
896 | ||
4e82c610 UD |
897 | /* Allocate a table for the converted translations for this |
898 | encoding. */ | |
899 | struct converted_domain *new_conversions = | |
900 | (struct converted_domain *) | |
4259230f UD |
901 | realloc (domain->conversions, |
902 | (nconversions + 1) * sizeof (struct converted_domain)); | |
4e82c610 UD |
903 | |
904 | if (__builtin_expect (new_conversions == NULL, 0)) | |
408cfca0 UD |
905 | { |
906 | /* Nothing we can do, no more memory. We cannot use the | |
907 | translation because it might be encoded incorrectly. */ | |
908 | unlock_fail: | |
909 | __libc_rwlock_unlock (domain->conversions_lock); | |
910 | return (char *) -1; | |
911 | } | |
4259230f | 912 | |
4e82c610 UD |
913 | domain->conversions = new_conversions; |
914 | ||
915 | /* Copy the 'encoding' string to permanent storage. */ | |
916 | encoding = strdup (encoding); | |
917 | if (__builtin_expect (encoding == NULL, 0)) | |
4259230f UD |
918 | /* Nothing we can do, no more memory. We cannot use the |
919 | translation because it might be encoded incorrectly. */ | |
408cfca0 | 920 | goto unlock_fail; |
4e82c610 UD |
921 | |
922 | convd = &new_conversions[nconversions]; | |
923 | convd->encoding = encoding; | |
924 | ||
925 | /* Find out about the character set the file is encoded with. | |
926 | This can be found (in textual form) in the entry "". If this | |
927 | entry does not exist or if this does not contain the 'charset=' | |
928 | information, we will assume the charset matches the one the | |
929 | current locale and we don't have to perform any conversion. */ | |
0ecb606c | 930 | # ifdef _LIBC |
4e82c610 | 931 | convd->conv = (__gconv_t) -1; |
0ecb606c JJ |
932 | # else |
933 | # if HAVE_ICONV | |
4e82c610 | 934 | convd->conv = (iconv_t) -1; |
0ecb606c JJ |
935 | # endif |
936 | # endif | |
4e82c610 UD |
937 | { |
938 | char *nullentry; | |
939 | size_t nullentrylen; | |
940 | ||
941 | /* Get the header entry. This is a recursion, but it doesn't | |
942 | reallocate domain->conversions because we pass convert = 0. */ | |
943 | nullentry = | |
944 | _nl_find_msg (domain_file, domainbinding, "", 0, &nullentrylen); | |
945 | ||
946 | if (nullentry != NULL) | |
947 | { | |
948 | const char *charsetstr; | |
949 | ||
950 | charsetstr = strstr (nullentry, "charset="); | |
951 | if (charsetstr != NULL) | |
952 | { | |
953 | size_t len; | |
954 | char *charset; | |
955 | const char *outcharset; | |
956 | ||
957 | charsetstr += strlen ("charset="); | |
958 | len = strcspn (charsetstr, " \t\n"); | |
959 | ||
960 | charset = (char *) alloca (len + 1); | |
961 | # if defined _LIBC || HAVE_MEMPCPY | |
962 | *((char *) mempcpy (charset, charsetstr, len)) = '\0'; | |
963 | # else | |
964 | memcpy (charset, charsetstr, len); | |
965 | charset[len] = '\0'; | |
966 | # endif | |
967 | ||
968 | outcharset = encoding; | |
969 | ||
970 | # ifdef _LIBC | |
971 | /* We always want to use transliteration. */ | |
972 | outcharset = norm_add_slashes (outcharset, "TRANSLIT"); | |
973 | charset = norm_add_slashes (charset, ""); | |
4259230f UD |
974 | int r = __gconv_open (outcharset, charset, &convd->conv, |
975 | GCONV_AVOID_NOCONV); | |
976 | if (__builtin_expect (r != __GCONV_OK, 0)) | |
977 | { | |
978 | /* If the output encoding is the same there is | |
979 | nothing to do. Otherwise do not use the | |
980 | translation at all. */ | |
7b503bcc | 981 | if (__builtin_expect (r != __GCONV_NULCONV, 1)) |
ce31a3b1 | 982 | { |
656f02ce | 983 | __libc_rwlock_unlock (domain->conversions_lock); |
ce31a3b1 UD |
984 | free ((char *) encoding); |
985 | return NULL; | |
986 | } | |
4259230f UD |
987 | |
988 | convd->conv = (__gconv_t) -1; | |
989 | } | |
4e82c610 UD |
990 | # else |
991 | # if HAVE_ICONV | |
992 | /* When using GNU libc >= 2.2 or GNU libiconv >= 1.5, | |
993 | we want to use transliteration. */ | |
994 | # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || __GLIBC__ > 2 \ | |
995 | || _LIBICONV_VERSION >= 0x0105 | |
996 | if (strchr (outcharset, '/') == NULL) | |
997 | { | |
998 | char *tmp; | |
999 | ||
1000 | len = strlen (outcharset); | |
1001 | tmp = (char *) alloca (len + 10 + 1); | |
1002 | memcpy (tmp, outcharset, len); | |
1003 | memcpy (tmp + len, "//TRANSLIT", 10 + 1); | |
1004 | outcharset = tmp; | |
1005 | ||
1006 | convd->conv = iconv_open (outcharset, charset); | |
1007 | ||
1008 | freea (outcharset); | |
1009 | } | |
1010 | else | |
1011 | # endif | |
1012 | convd->conv = iconv_open (outcharset, charset); | |
1013 | # endif | |
1014 | # endif | |
1015 | ||
1016 | freea (charset); | |
1017 | } | |
1018 | } | |
1019 | } | |
1020 | convd->conv_tab = NULL; | |
1021 | /* Here domain->conversions is still == new_conversions. */ | |
1022 | domain->nconversions++; | |
408cfca0 UD |
1023 | |
1024 | found_convd: | |
1025 | __libc_rwlock_unlock (domain->conversions_lock); | |
4e82c610 UD |
1026 | } |
1027 | ||
1028 | if ( | |
1029 | # ifdef _LIBC | |
1030 | convd->conv != (__gconv_t) -1 | |
1031 | # else | |
1032 | # if HAVE_ICONV | |
1033 | convd->conv != (iconv_t) -1 | |
1034 | # endif | |
1035 | # endif | |
1036 | ) | |
0a55a284 | 1037 | { |
2ecc7d93 | 1038 | __libc_lock_define_initialized (static, lock) |
4e82c610 UD |
1039 | /* We are supposed to do a conversion. First allocate an |
1040 | appropriate table with the same structure as the table | |
1041 | of translations in the file, where we can put the pointers | |
1042 | to the converted strings in. | |
1043 | There is a slight complication with plural entries. They | |
1044 | are represented by consecutive NUL terminated strings. We | |
1045 | handle this case by converting RESULTLEN bytes, including | |
1046 | NULs. */ | |
1047 | ||
2ecc7d93 UD |
1048 | if (__builtin_expect (convd->conv_tab == NULL, 0)) |
1049 | { | |
1050 | __libc_lock_lock (lock); | |
1051 | if (convd->conv_tab == NULL) | |
1052 | { | |
1053 | convd->conv_tab | |
1054 | = calloc (nstrings + domain->n_sysdep_strings, | |
1055 | sizeof (char *)); | |
1056 | if (convd->conv_tab != NULL) | |
1057 | goto not_translated_yet; | |
1058 | /* Mark that we didn't succeed allocating a table. */ | |
1059 | convd->conv_tab = (char **) -1; | |
1060 | } | |
1061 | __libc_lock_unlock (lock); | |
1062 | } | |
4e82c610 UD |
1063 | |
1064 | if (__builtin_expect (convd->conv_tab == (char **) -1, 0)) | |
4259230f UD |
1065 | /* Nothing we can do, no more memory. We cannot use the |
1066 | translation because it might be encoded incorrectly. */ | |
1067 | return (char *) -1; | |
4e82c610 UD |
1068 | |
1069 | if (convd->conv_tab[act] == NULL) | |
1070 | { | |
2ecc7d93 UD |
1071 | __libc_lock_lock (lock); |
1072 | not_translated_yet:; | |
1073 | ||
4e82c610 UD |
1074 | /* We haven't used this string so far, so it is not |
1075 | translated yet. Do this now. */ | |
1076 | /* We use a bit more efficient memory handling. | |
1077 | We allocate always larger blocks which get used over | |
1078 | time. This is faster than many small allocations. */ | |
f8f900ec | 1079 | # define INITIAL_BLOCK_SIZE 4080 |
4e82c610 UD |
1080 | static unsigned char *freemem; |
1081 | static size_t freemem_size; | |
0a55a284 | 1082 | |
4e82c610 UD |
1083 | const unsigned char *inbuf; |
1084 | unsigned char *outbuf; | |
1085 | int malloc_count; | |
f8f900ec | 1086 | # ifndef _LIBC |
4e82c610 | 1087 | transmem_block_t *transmem_list = NULL; |
f8f900ec | 1088 | # endif |
0a55a284 | 1089 | |
4e82c610 UD |
1090 | inbuf = (const unsigned char *) result; |
1091 | outbuf = freemem + sizeof (size_t); | |
45eca4d1 | 1092 | |
4e82c610 UD |
1093 | malloc_count = 0; |
1094 | while (1) | |
1095 | { | |
1096 | transmem_block_t *newmem; | |
0a55a284 | 1097 | # ifdef _LIBC |
4e82c610 UD |
1098 | size_t non_reversible; |
1099 | int res; | |
17c389fc | 1100 | |
4e82c610 UD |
1101 | if (freemem_size < sizeof (size_t)) |
1102 | goto resize_freemem; | |
45eca4d1 | 1103 | |
4e82c610 UD |
1104 | res = __gconv (convd->conv, |
1105 | &inbuf, inbuf + resultlen, | |
1106 | &outbuf, | |
1107 | outbuf + freemem_size - sizeof (size_t), | |
1108 | &non_reversible); | |
17c389fc | 1109 | |
4e82c610 UD |
1110 | if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT) |
1111 | break; | |
17c389fc | 1112 | |
4e82c610 UD |
1113 | if (res != __GCONV_FULL_OUTPUT) |
1114 | { | |
4259230f UD |
1115 | /* We should not use the translation at all, it |
1116 | is incorrectly encoded. */ | |
4e82c610 | 1117 | __libc_lock_unlock (lock); |
4259230f | 1118 | return NULL; |
4e82c610 | 1119 | } |
17c389fc | 1120 | |
4e82c610 | 1121 | inbuf = (const unsigned char *) result; |
0a55a284 UD |
1122 | # else |
1123 | # if HAVE_ICONV | |
4e82c610 UD |
1124 | const char *inptr = (const char *) inbuf; |
1125 | size_t inleft = resultlen; | |
1126 | char *outptr = (char *) outbuf; | |
1127 | size_t outleft; | |
1128 | ||
1129 | if (freemem_size < sizeof (size_t)) | |
1130 | goto resize_freemem; | |
1131 | ||
1132 | outleft = freemem_size - sizeof (size_t); | |
1133 | if (iconv (convd->conv, | |
1134 | (ICONV_CONST char **) &inptr, &inleft, | |
1135 | &outptr, &outleft) | |
1136 | != (size_t) (-1)) | |
1137 | { | |
1138 | outbuf = (unsigned char *) outptr; | |
1139 | break; | |
1140 | } | |
1141 | if (errno != E2BIG) | |
1142 | { | |
1143 | __libc_lock_unlock (lock); | |
4259230f | 1144 | return NULL; |
4e82c610 | 1145 | } |
17c389fc UD |
1146 | # endif |
1147 | # endif | |
0a55a284 | 1148 | |
4e82c610 UD |
1149 | resize_freemem: |
1150 | /* We must allocate a new buffer or resize the old one. */ | |
1151 | if (malloc_count > 0) | |
1152 | { | |
1153 | ++malloc_count; | |
1154 | freemem_size = malloc_count * INITIAL_BLOCK_SIZE; | |
1155 | newmem = (transmem_block_t *) realloc (transmem_list, | |
1156 | freemem_size); | |
f8f900ec | 1157 | # ifdef _LIBC |
4e82c610 UD |
1158 | if (newmem != NULL) |
1159 | transmem_list = transmem_list->next; | |
1160 | else | |
1161 | { | |
1162 | struct transmem_list *old = transmem_list; | |
1163 | ||
1164 | transmem_list = transmem_list->next; | |
1165 | free (old); | |
1166 | } | |
1167 | # endif | |
1168 | } | |
f8f900ec UD |
1169 | else |
1170 | { | |
4e82c610 UD |
1171 | malloc_count = 1; |
1172 | freemem_size = INITIAL_BLOCK_SIZE; | |
1173 | newmem = (transmem_block_t *) malloc (freemem_size); | |
1174 | } | |
1175 | if (__builtin_expect (newmem == NULL, 0)) | |
1176 | { | |
1177 | freemem = NULL; | |
1178 | freemem_size = 0; | |
1179 | __libc_lock_unlock (lock); | |
4259230f | 1180 | return (char *) -1; |
f8f900ec | 1181 | } |
0a55a284 | 1182 | |
7f455351 | 1183 | # ifdef _LIBC |
4e82c610 UD |
1184 | /* Add the block to the list of blocks we have to free |
1185 | at some point. */ | |
1186 | newmem->next = transmem_list; | |
1187 | transmem_list = newmem; | |
7f455351 | 1188 | |
4e82c610 UD |
1189 | freemem = (unsigned char *) newmem->data; |
1190 | freemem_size -= offsetof (struct transmem_list, data); | |
f8f900ec | 1191 | # else |
4e82c610 UD |
1192 | transmem_list = newmem; |
1193 | freemem = newmem; | |
7f455351 UD |
1194 | # endif |
1195 | ||
4e82c610 UD |
1196 | outbuf = freemem + sizeof (size_t); |
1197 | } | |
1198 | ||
1199 | /* We have now in our buffer a converted string. Put this | |
1200 | into the table of conversions. */ | |
1201 | *(size_t *) freemem = outbuf - freemem - sizeof (size_t); | |
1202 | convd->conv_tab[act] = (char *) freemem; | |
1203 | /* Shrink freemem, but keep it aligned. */ | |
1204 | freemem_size -= outbuf - freemem; | |
1205 | freemem = outbuf; | |
1206 | freemem += freemem_size & (alignof (size_t) - 1); | |
1207 | freemem_size = freemem_size & ~ (alignof (size_t) - 1); | |
1208 | ||
1209 | __libc_lock_unlock (lock); | |
0a55a284 | 1210 | } |
0a55a284 | 1211 | |
4e82c610 UD |
1212 | /* Now convd->conv_tab[act] contains the translation of all |
1213 | the plural variants. */ | |
1214 | result = convd->conv_tab[act] + sizeof (size_t); | |
1215 | resultlen = *(size_t *) convd->conv_tab[act]; | |
0a55a284 | 1216 | } |
0a55a284 UD |
1217 | } |
1218 | ||
0a55a284 UD |
1219 | /* The result string is converted. */ |
1220 | ||
1221 | #endif /* _LIBC || HAVE_ICONV */ | |
1222 | ||
f8f900ec UD |
1223 | *lengthp = resultlen; |
1224 | return result; | |
1225 | } | |
1226 | ||
1227 | ||
1228 | /* Look up a plural variant. */ | |
1229 | static char * | |
1230 | internal_function | |
1231 | plural_lookup (domain, n, translation, translation_len) | |
1232 | struct loaded_l10nfile *domain; | |
1233 | unsigned long int n; | |
1234 | const char *translation; | |
1235 | size_t translation_len; | |
1236 | { | |
1237 | struct loaded_domain *domaindata = (struct loaded_domain *) domain->data; | |
1238 | unsigned long int index; | |
1239 | const char *p; | |
1240 | ||
1241 | index = plural_eval (domaindata->plural, n); | |
1242 | if (index >= domaindata->nplurals) | |
1243 | /* This should never happen. It means the plural expression and the | |
1244 | given maximum value do not match. */ | |
1245 | index = 0; | |
1246 | ||
1247 | /* Skip INDEX strings at TRANSLATION. */ | |
1248 | p = translation; | |
0a55a284 UD |
1249 | while (index-- > 0) |
1250 | { | |
1251 | #ifdef _LIBC | |
f8f900ec | 1252 | p = __rawmemchr (p, '\0'); |
0a55a284 | 1253 | #else |
f8f900ec | 1254 | p = strchr (p, '\0'); |
0a55a284 UD |
1255 | #endif |
1256 | /* And skip over the NUL byte. */ | |
f8f900ec | 1257 | p++; |
abbffdf9 | 1258 | |
f8f900ec UD |
1259 | if (p >= translation + translation_len) |
1260 | /* This should never happen. It means the plural expression | |
1261 | evaluated to a value larger than the number of variants | |
1262 | available for MSGID1. */ | |
1263 | return (char *) translation; | |
1264 | } | |
1265 | return (char *) p; | |
abbffdf9 UD |
1266 | } |
1267 | ||
2b71beea | 1268 | #ifndef _LIBC |
abbffdf9 UD |
1269 | /* Return string representation of locale CATEGORY. */ |
1270 | static const char * | |
1271 | internal_function | |
1272 | category_to_name (category) | |
1273 | int category; | |
1274 | { | |
1275 | const char *retval; | |
1276 | ||
1277 | switch (category) | |
1278 | { | |
1279 | #ifdef LC_COLLATE | |
1280 | case LC_COLLATE: | |
1281 | retval = "LC_COLLATE"; | |
1282 | break; | |
1283 | #endif | |
1284 | #ifdef LC_CTYPE | |
1285 | case LC_CTYPE: | |
1286 | retval = "LC_CTYPE"; | |
1287 | break; | |
1288 | #endif | |
1289 | #ifdef LC_MONETARY | |
1290 | case LC_MONETARY: | |
1291 | retval = "LC_MONETARY"; | |
1292 | break; | |
1293 | #endif | |
1294 | #ifdef LC_NUMERIC | |
1295 | case LC_NUMERIC: | |
1296 | retval = "LC_NUMERIC"; | |
1297 | break; | |
1298 | #endif | |
1299 | #ifdef LC_TIME | |
1300 | case LC_TIME: | |
1301 | retval = "LC_TIME"; | |
1302 | break; | |
1303 | #endif | |
1304 | #ifdef LC_MESSAGES | |
1305 | case LC_MESSAGES: | |
1306 | retval = "LC_MESSAGES"; | |
1307 | break; | |
1308 | #endif | |
1309 | #ifdef LC_RESPONSE | |
1310 | case LC_RESPONSE: | |
1311 | retval = "LC_RESPONSE"; | |
1312 | break; | |
1313 | #endif | |
1314 | #ifdef LC_ALL | |
1315 | case LC_ALL: | |
1316 | /* This might not make sense but is perhaps better than any other | |
1317 | value. */ | |
1318 | retval = "LC_ALL"; | |
1319 | break; | |
1320 | #endif | |
1321 | default: | |
1322 | /* If you have a better idea for a default value let me know. */ | |
1323 | retval = "LC_XXX"; | |
1324 | } | |
1325 | ||
1326 | return retval; | |
1327 | } | |
2b71beea | 1328 | #endif |
abbffdf9 UD |
1329 | |
1330 | /* Guess value of current locale from value of the environment variables. */ | |
1331 | static const char * | |
1332 | internal_function | |
1333 | guess_category_value (category, categoryname) | |
1334 | int category; | |
1335 | const char *categoryname; | |
1336 | { | |
3859d27d | 1337 | const char *language; |
abbffdf9 UD |
1338 | const char *retval; |
1339 | ||
1340 | /* The highest priority value is the `LANGUAGE' environment | |
3859d27d UD |
1341 | variable. But we don't use the value if the currently selected |
1342 | locale is the C locale. This is a GNU extension. */ | |
1343 | language = getenv ("LANGUAGE"); | |
1344 | if (language != NULL && language[0] == '\0') | |
1345 | language = NULL; | |
1346 | ||
1347 | /* We have to proceed with the POSIX methods of looking to `LC_ALL', | |
1348 | `LC_xxx', and `LANG'. On some systems this can be done by the | |
1349 | `setlocale' function itself. */ | |
0555fcce | 1350 | #ifdef _LIBC |
30c14c31 | 1351 | retval = __current_locale_name (category); |
abbffdf9 | 1352 | #else |
0555fcce | 1353 | retval = _nl_locale_name (category, categoryname); |
abbffdf9 | 1354 | #endif |
3859d27d UD |
1355 | |
1356 | return language != NULL && strcmp (retval, "C") != 0 ? language : retval; | |
abbffdf9 UD |
1357 | } |
1358 | ||
4e82c610 UD |
1359 | #if defined _LIBC || HAVE_ICONV |
1360 | /* Returns the output charset. */ | |
1361 | static const char * | |
1362 | internal_function | |
1363 | get_output_charset (domainbinding) | |
1364 | struct binding *domainbinding; | |
1365 | { | |
1366 | /* The output charset should normally be determined by the locale. But | |
1367 | sometimes the locale is not used or not correctly set up, so we provide | |
1368 | a possibility for the user to override this: the OUTPUT_CHARSET | |
1369 | environment variable. Moreover, the value specified through | |
1370 | bind_textdomain_codeset overrides both. */ | |
1371 | if (domainbinding != NULL && domainbinding->codeset != NULL) | |
1372 | return domainbinding->codeset; | |
1373 | else | |
1374 | { | |
1375 | /* For speed reasons, we look at the value of OUTPUT_CHARSET only | |
1376 | once. This is a user variable that is not supposed to change | |
1377 | during a program run. */ | |
1378 | static char *output_charset_cache; | |
1379 | static int output_charset_cached; | |
1380 | ||
1381 | if (!output_charset_cached) | |
1382 | { | |
1383 | const char *value = getenv ("OUTPUT_CHARSET"); | |
1384 | ||
1385 | if (value != NULL && value[0] != '\0') | |
1386 | { | |
1387 | size_t len = strlen (value) + 1; | |
1388 | char *value_copy = (char *) malloc (len); | |
1389 | ||
1390 | if (value_copy != NULL) | |
1391 | memcpy (value_copy, value, len); | |
1392 | output_charset_cache = value_copy; | |
1393 | } | |
1394 | output_charset_cached = 1; | |
1395 | } | |
1396 | ||
1397 | if (output_charset_cache != NULL) | |
1398 | return output_charset_cache; | |
1399 | else | |
1400 | { | |
1401 | # ifdef _LIBC | |
1402 | return _NL_CURRENT (LC_CTYPE, CODESET); | |
1403 | # else | |
1404 | # if HAVE_ICONV | |
3ff94596 | 1405 | extern const char *locale_charset PARAMS ((void)); |
4e82c610 UD |
1406 | return locale_charset (); |
1407 | # endif | |
1408 | # endif | |
1409 | } | |
1410 | } | |
1411 | } | |
1412 | #endif | |
1413 | ||
abbffdf9 UD |
1414 | /* @@ begin of epilog @@ */ |
1415 | ||
1416 | /* We don't want libintl.a to depend on any other library. So we | |
1417 | avoid the non-standard function stpcpy. In GNU C Library this | |
1418 | function is available, though. Also allow the symbol HAVE_STPCPY | |
1419 | to be defined. */ | |
1420 | #if !_LIBC && !HAVE_STPCPY | |
1421 | static char * | |
1422 | stpcpy (dest, src) | |
1423 | char *dest; | |
1424 | const char *src; | |
1425 | { | |
1426 | while ((*dest++ = *src++) != '\0') | |
1427 | /* Do nothing. */ ; | |
1428 | return dest - 1; | |
1429 | } | |
1430 | #endif | |
1431 | ||
1432 | #if !_LIBC && !HAVE_MEMPCPY | |
1433 | static void * | |
1434 | mempcpy (dest, src, n) | |
1435 | void *dest; | |
1436 | const void *src; | |
1437 | size_t n; | |
1438 | { | |
b98f4e05 | 1439 | return (void *) ((char *) memcpy (dest, src, n) + n); |
abbffdf9 UD |
1440 | } |
1441 | #endif | |
1442 | ||
1443 | ||
1444 | #ifdef _LIBC | |
1445 | /* If we want to free all resources we have to do some work at | |
1446 | program's end. */ | |
c877418f | 1447 | libc_freeres_fn (free_mem) |
abbffdf9 | 1448 | { |
7f455351 | 1449 | void *old; |
abbffdf9 | 1450 | |
55e2d5c7 | 1451 | while (_nl_domain_bindings != NULL) |
17c389fc | 1452 | { |
55e2d5c7 UD |
1453 | struct binding *oldp = _nl_domain_bindings; |
1454 | _nl_domain_bindings = _nl_domain_bindings->next; | |
9cfe5381 | 1455 | if (oldp->dirname != _nl_default_dirname) |
17c389fc | 1456 | /* Yes, this is a pointer comparison. */ |
55e2d5c7 UD |
1457 | free (oldp->dirname); |
1458 | free (oldp->codeset); | |
1459 | free (oldp); | |
17c389fc | 1460 | } |
abbffdf9 UD |
1461 | |
1462 | if (_nl_current_default_domain != _nl_default_default_domain) | |
1463 | /* Yes, again a pointer comparison. */ | |
1464 | free ((char *) _nl_current_default_domain); | |
1465 | ||
17c389fc | 1466 | /* Remove the search tree with the known translations. */ |
abbffdf9 | 1467 | __tdestroy (root, free); |
55e2d5c7 | 1468 | root = NULL; |
7f455351 UD |
1469 | |
1470 | while (transmem_list != NULL) | |
1471 | { | |
1472 | old = transmem_list; | |
1473 | transmem_list = transmem_list->next; | |
1474 | free (old); | |
1475 | } | |
abbffdf9 | 1476 | } |
abbffdf9 | 1477 | #endif |