1 /* Implementation of the internal dcigettext function.
2 Copyright (C) 1995-1999, 2000-2003 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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. */
23 # define _GNU_SOURCE 1
30 #include <sys/types.h>
33 # define alloca __builtin_alloca
34 # define HAVE_ALLOCA 1
38 # define alloca _alloca
40 # if defined HAVE_ALLOCA_H || defined _LIBC
59 # define __set_errno(val) errno = (val)
66 #if defined HAVE_UNISTD_H || defined _LIBC
73 /* Guess whether integer division by zero raises signal SIGFPE.
74 Set to 1 only if you know for sure. In case of doubt, set to 0. */
75 # if defined __alpha__ || defined __arm__ || defined __i386__ \
76 || defined __m68k__ || defined __s390__
77 # define INTDIV0_RAISES_SIGFPE 1
79 # define INTDIV0_RAISES_SIGFPE 0
82 #if !INTDIV0_RAISES_SIGFPE
86 #if defined HAVE_SYS_PARAM_H || defined _LIBC
87 # include <sys/param.h>
91 #include "plural-exp.h"
95 # include "libgnuintl.h"
97 #include "hash-string.h"
99 /* Thread safetyness. */
101 # include <bits/libc-lock.h>
103 /* Provide dummy implementation if this is outside glibc. */
104 # define __libc_lock_define_initialized(CLASS, NAME)
105 # define __libc_lock_lock(NAME)
106 # define __libc_lock_unlock(NAME)
107 # define __libc_rwlock_define_initialized(CLASS, NAME)
108 # define __libc_rwlock_rdlock(NAME)
109 # define __libc_rwlock_unlock(NAME)
112 /* Alignment of types. */
113 #if defined __GNUC__ && __GNUC__ >= 2
114 # define alignof(TYPE) __alignof__ (TYPE)
116 # define alignof(TYPE) \
117 ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2)
120 /* The internal variables in the standalone libintl.a must have different
121 names than the internal variables in GNU libc, otherwise programs
122 using libintl.a cannot be linked statically. */
124 # define _nl_default_default_domain libintl_nl_default_default_domain
125 # define _nl_current_default_domain libintl_nl_current_default_domain
126 # define _nl_default_dirname libintl_nl_default_dirname
127 # define _nl_domain_bindings libintl_nl_domain_bindings
130 /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */
132 # define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
135 /* @@ end of prolog @@ */
137 #if defined (SHELL) && !defined (HAVE_GETCWD)
142 /* Rename the non ANSI C functions. This is required by the standard
143 because some ANSI C functions will require linking with this object
144 file and the name space must not be polluted. */
145 # define getcwd __getcwd
147 # define stpcpy __stpcpy
149 # define tfind __tfind
151 # if !defined HAVE_GETCWD
153 # define getcwd(buf, max) getwd (buf)
158 static char *stpcpy PARAMS ((char *dest, const char *src));
160 # ifndef HAVE_MEMPCPY
161 static void *mempcpy PARAMS ((void *dest, const void *src, size_t n));
165 /* Amount to increase buffer size by in each try. */
168 /* The following is from pathmax.h. */
169 /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define
170 PATH_MAX but might cause redefinition warnings when sys/param.h is
171 later included (as on MORE/BSD 4.3). */
172 #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__)
176 #ifndef _POSIX_PATH_MAX
177 # define _POSIX_PATH_MAX 255
180 #if !defined PATH_MAX && defined _PC_PATH_MAX
181 # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX))
184 /* Don't include sys/param.h if it already has been. */
185 #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
186 # include <sys/param.h>
189 #if !defined PATH_MAX && defined MAXPATHLEN
190 # define PATH_MAX MAXPATHLEN
194 # define PATH_MAX _POSIX_PATH_MAX
198 ISSLASH(C) tests whether C is a directory separator character.
199 IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not,
200 it may be concatenated to a directory pathname.
201 IS_PATH_WITH_DIR(P) tests whether P contains a directory specification.
203 #if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
204 /* Win32, OS/2, DOS */
205 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
206 # define HAS_DEVICE(P) \
207 ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
209 # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
210 # define IS_PATH_WITH_DIR(P) \
211 (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P))
214 # define ISSLASH(C) ((C) == '/')
215 # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
216 # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL)
219 /* This is the type used for the search tree where known translations
221 struct known_translation_t
223 /* Domain in which to search. */
229 /* State of the catalog counter at the point the string was found. */
232 /* Catalog where the string was found. */
233 struct loaded_l10nfile *domain;
235 /* And finally the translation. */
236 const char *translation;
237 size_t translation_length;
239 /* Pointer to the string in question. */
243 /* Root of the search tree with known translations. We can use this
244 only if the system provides the `tsearch' function family. */
245 #if defined HAVE_TSEARCH || defined _LIBC
251 # define tsearch __tsearch
254 /* Function to compare two entries in the table of known translations. */
255 static int transcmp PARAMS ((const void *p1, const void *p2));
261 const struct known_translation_t *s1;
262 const struct known_translation_t *s2;
265 s1 = (const struct known_translation_t *) p1;
266 s2 = (const struct known_translation_t *) p2;
268 result = strcmp (s1->msgid, s2->msgid);
271 result = strcmp (s1->domainname, s2->domainname);
273 /* We compare the category last (though this is the cheapest
274 operation) since it is hopefully always the same (namely
276 result = s1->category - s2->category;
284 # define INTVARDEF(name)
287 # define INTUSE(name) name
290 /* Name of the default domain used for gettext(3) prior any call to
291 textdomain(3). The default value for this is "messages". */
292 const char _nl_default_default_domain[] attribute_hidden = "messages";
294 /* Value used as the default domain for gettext(3). */
295 const char *_nl_current_default_domain attribute_hidden
296 = _nl_default_default_domain;
298 /* Contains the default location of the message catalogs. */
300 extern const char _nl_default_dirname[];
302 const char _nl_default_dirname[] = LOCALEDIR;
303 INTVARDEF (_nl_default_dirname)
306 /* List with bindings of specific domains created by bindtextdomain()
308 struct binding *_nl_domain_bindings;
310 /* Prototypes for local functions. */
311 static char *plural_lookup PARAMS ((struct loaded_l10nfile *domain,
313 const char *translation,
314 size_t translation_len))
316 static const char *guess_category_value PARAMS ((int category,
317 const char *categoryname))
320 # include "../locale/localeinfo.h"
321 # define category_to_name(category) _nl_category_names[category]
323 static const char *category_to_name PARAMS ((int category)) internal_function;
327 /* For those loosing systems which don't have `alloca' we have to add
328 some additional code emulating it. */
330 /* Nothing has to be done. */
331 # define freea(p) /* nothing */
332 # define ADD_BLOCK(list, address) /* nothing */
333 # define FREE_BLOCKS(list) /* nothing */
338 struct block_list *next;
340 # define ADD_BLOCK(list, addr) \
342 struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \
343 /* If we cannot get a free block we cannot add the new element to \
345 if (newp != NULL) { \
346 newp->address = (addr); \
347 newp->next = (list); \
351 # define FREE_BLOCKS(list) \
353 while (list != NULL) { \
354 struct block_list *old = list; \
356 free (old->address); \
361 # define alloca(size) (malloc (size))
362 # define freea(p) free (p)
363 #endif /* have alloca */
367 /* List of blocks allocated for translations. */
368 typedef struct transmem_list
370 struct transmem_list *next;
373 static struct transmem_list *transmem_list;
375 typedef unsigned char transmem_block_t;
379 /* Names for the libintl functions are a problem. They must not clash
380 with existing names and they should follow ANSI C. But this source
381 code is also used in GNU C Library where the names have a __
382 prefix. So we have to make a difference here. */
384 # define DCIGETTEXT __dcigettext
386 # define DCIGETTEXT libintl_dcigettext
389 /* Lock variable to protect the global data in the gettext implementation. */
391 __libc_rwlock_define_initialized (, _nl_state_lock attribute_hidden)
394 /* Checking whether the binaries runs SUID must be done and glibc provides
395 easier methods therefore we make a difference here. */
397 # define ENABLE_SECURE __libc_enable_secure
398 # define DETERMINE_SECURE
406 # ifndef HAVE_GETEUID
407 # define geteuid() getuid()
409 # ifndef HAVE_GETEGID
410 # define getegid() getgid()
412 static int enable_secure;
413 # define ENABLE_SECURE (enable_secure == 1)
414 # define DETERMINE_SECURE \
415 if (enable_secure == 0) \
417 if (getuid () != geteuid () || getgid () != getegid ()) \
420 enable_secure = -1; \
425 # define raise(x) kill (getpid (), (x))
428 /* Get the function to evaluate the plural expression. */
429 #include "eval-plural.h"
431 /* Look up MSGID in the DOMAINNAME message catalog for the current
432 CATEGORY locale and, if PLURAL is nonzero, search over string
433 depending on the plural form determined by N. */
435 DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
436 const char *domainname;
444 struct block_list *block_list = NULL;
446 struct loaded_l10nfile *domain;
447 struct binding *binding;
448 const char *categoryname;
449 const char *categoryvalue;
450 char *dirname, *xdomainname;
455 #if defined HAVE_TSEARCH || defined _LIBC
456 struct known_translation_t *search;
457 struct known_translation_t **foundp = NULL;
460 size_t domainname_len;
462 /* If no real MSGID is given return NULL. */
467 if (category < 0 || category >= __LC_LAST || category == LC_ALL)
471 /* Use the Germanic plural rule. */
472 : n == 1 ? (char *) msgid1 : (char *) msgid2);
475 __libc_rwlock_rdlock (_nl_state_lock);
477 /* If DOMAINNAME is NULL, we are interested in the default domain. If
478 CATEGORY is not LC_MESSAGES this might not make much sense but the
479 definition left this undefined. */
480 if (domainname == NULL)
481 domainname = _nl_current_default_domain;
483 /* OS/2 specific: backward compatibility with older libintl versions */
484 #ifdef LC_MESSAGES_COMPAT
485 if (category == LC_MESSAGES_COMPAT)
486 category = LC_MESSAGES;
489 #if defined HAVE_TSEARCH || defined _LIBC
490 msgid_len = strlen (msgid1) + 1;
492 /* Try to find the translation among those which we found at
494 search = (struct known_translation_t *)
495 alloca (offsetof (struct known_translation_t, msgid) + msgid_len);
496 memcpy (search->msgid, msgid1, msgid_len);
497 search->domainname = (char *) domainname;
498 search->category = category;
500 foundp = (struct known_translation_t **) tfind (search, &root, transcmp);
502 if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr)
504 /* Now deal with plural. */
506 retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation,
507 (*foundp)->translation_length);
509 retval = (char *) (*foundp)->translation;
511 __libc_rwlock_unlock (_nl_state_lock);
516 /* Preserve the `errno' value. */
519 /* See whether this is a SUID binary or not. */
522 /* First find matching binding. */
523 for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
525 int compare = strcmp (domainname, binding->domainname);
531 /* It is not in the list. */
538 dirname = (char *) INTUSE(_nl_default_dirname);
539 else if (IS_ABSOLUTE_PATH (binding->dirname))
540 dirname = binding->dirname;
543 /* We have a relative path. Make it absolute now. */
544 size_t dirname_len = strlen (binding->dirname) + 1;
548 path_max = (unsigned int) PATH_MAX;
549 path_max += 2; /* The getcwd docs say to do this. */
553 dirname = (char *) alloca (path_max + dirname_len);
554 ADD_BLOCK (block_list, dirname);
557 ret = getcwd (dirname, path_max);
558 if (ret != NULL || errno != ERANGE)
561 path_max += path_max / 2;
562 path_max += PATH_INCR;
566 /* We cannot get the current working directory. Don't signal an
567 error but simply return the default string. */
568 goto return_untranslated;
570 stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname);
573 /* Now determine the symbolic name of CATEGORY and its value. */
574 categoryname = category_to_name (category);
575 categoryvalue = guess_category_value (category, categoryname);
577 domainname_len = strlen (domainname);
578 xdomainname = (char *) alloca (strlen (categoryname)
579 + domainname_len + 5);
580 ADD_BLOCK (block_list, xdomainname);
582 stpcpy (mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"),
583 domainname, domainname_len),
586 /* Creating working area. */
587 single_locale = (char *) alloca (strlen (categoryvalue) + 1);
588 ADD_BLOCK (block_list, single_locale);
591 /* Search for the given string. This is a loop because we perhaps
592 got an ordered list of languages to consider for the translation. */
595 /* Make CATEGORYVALUE point to the next element of the list. */
596 while (categoryvalue[0] != '\0' && categoryvalue[0] == ':')
598 if (categoryvalue[0] == '\0')
600 /* The whole contents of CATEGORYVALUE has been searched but
601 no valid entry has been found. We solve this situation
602 by implicitly appending a "C" entry, i.e. no translation
604 single_locale[0] = 'C';
605 single_locale[1] = '\0';
609 char *cp = single_locale;
610 while (categoryvalue[0] != '\0' && categoryvalue[0] != ':')
611 *cp++ = *categoryvalue++;
614 /* When this is a SUID binary we must not allow accessing files
615 outside the dedicated directories. */
616 if (ENABLE_SECURE && IS_PATH_WITH_DIR (single_locale))
617 /* Ingore this entry. */
621 /* If the current locale value is C (or POSIX) we don't load a
622 domain. Return the MSGID. */
623 if (strcmp (single_locale, "C") == 0
624 || strcmp (single_locale, "POSIX") == 0)
627 /* Find structure describing the message catalog matching the
628 DOMAINNAME and CATEGORY. */
629 domain = _nl_find_domain (dirname, single_locale, xdomainname, binding);
633 retval = _nl_find_msg (domain, binding, msgid1, &retlen);
639 for (cnt = 0; domain->successor[cnt] != NULL; ++cnt)
641 retval = _nl_find_msg (domain->successor[cnt], binding,
646 domain = domain->successor[cnt];
654 /* Found the translation of MSGID1 in domain DOMAIN:
655 starting at RETVAL, RETLEN bytes. */
656 FREE_BLOCKS (block_list);
657 #if defined HAVE_TSEARCH || defined _LIBC
660 /* Create a new entry and add it to the search tree. */
661 struct known_translation_t *newp;
663 newp = (struct known_translation_t *)
664 malloc (offsetof (struct known_translation_t, msgid)
665 + msgid_len + domainname_len + 1);
669 mempcpy (newp->msgid, msgid1, msgid_len);
670 memcpy (newp->domainname, domainname, domainname_len + 1);
671 newp->category = category;
672 newp->counter = _nl_msg_cat_cntr;
673 newp->domain = domain;
674 newp->translation = retval;
675 newp->translation_length = retlen;
677 /* Insert the entry in the search tree. */
678 foundp = (struct known_translation_t **)
679 tsearch (newp, &root, transcmp);
681 || __builtin_expect (*foundp != newp, 0))
682 /* The insert failed. */
688 /* We can update the existing entry. */
689 (*foundp)->counter = _nl_msg_cat_cntr;
690 (*foundp)->domain = domain;
691 (*foundp)->translation = retval;
692 (*foundp)->translation_length = retlen;
695 __set_errno (saved_errno);
697 /* Now deal with plural. */
699 retval = plural_lookup (domain, n, retval, retlen);
701 __libc_rwlock_unlock (_nl_state_lock);
708 /* Return the untranslated MSGID. */
709 FREE_BLOCKS (block_list);
710 __libc_rwlock_unlock (_nl_state_lock);
714 extern void _nl_log_untranslated PARAMS ((const char *logfilename,
715 const char *domainname,
719 const char *logfilename = getenv ("GETTEXT_LOG_UNTRANSLATED");
721 if (logfilename != NULL && logfilename[0] != '\0')
722 _nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural);
725 __set_errno (saved_errno);
728 /* Use the Germanic plural rule. */
729 : n == 1 ? (char *) msgid1 : (char *) msgid2);
735 _nl_find_msg (domain_file, domainbinding, msgid, lengthp)
736 struct loaded_l10nfile *domain_file;
737 struct binding *domainbinding;
741 struct loaded_domain *domain;
747 if (domain_file->decided == 0)
748 _nl_load_domain (domain_file, domainbinding);
750 if (domain_file->data == NULL)
753 domain = (struct loaded_domain *) domain_file->data;
755 nstrings = domain->nstrings;
757 /* Locate the MSGID and its translation. */
758 if (domain->hash_tab != NULL)
760 /* Use the hashing table. */
761 nls_uint32 len = strlen (msgid);
762 nls_uint32 hash_val = hash_string (msgid);
763 nls_uint32 idx = hash_val % domain->hash_size;
764 nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2));
769 W (domain->must_swap_hash_tab, domain->hash_tab[idx]);
772 /* Hash table entry is empty. */
777 /* Compare msgid with the original string at index nstr.
778 We compare the lengths with >=, not ==, because plural entries
779 are represented by strings with an embedded NUL. */
781 ? W (domain->must_swap, domain->orig_tab[nstr].length) >= len
783 domain->data + W (domain->must_swap,
784 domain->orig_tab[nstr].offset))
786 : domain->orig_sysdep_tab[nstr - nstrings].length > len
788 domain->orig_sysdep_tab[nstr - nstrings].pointer)
795 if (idx >= domain->hash_size - incr)
796 idx -= domain->hash_size - incr;
804 /* Try the default method: binary search in the sorted array of
814 act = (bottom + top) / 2;
815 cmp_val = strcmp (msgid, (domain->data
816 + W (domain->must_swap,
817 domain->orig_tab[act].offset)));
820 else if (cmp_val > 0)
825 /* No translation was found. */
830 /* The translation was found at index ACT. If we have to convert the
831 string to use a different character set, this is the time. */
835 (domain->data + W (domain->must_swap, domain->trans_tab[act].offset));
836 resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1;
840 result = (char *) domain->trans_sysdep_tab[act - nstrings].pointer;
841 resultlen = domain->trans_sysdep_tab[act - nstrings].length;
844 #if defined _LIBC || HAVE_ICONV
845 if (domain->codeset_cntr
846 != (domainbinding != NULL ? domainbinding->codeset_cntr : 0))
848 /* The domain's codeset has changed through bind_textdomain_codeset()
849 since the message catalog was initialized or last accessed. We
850 have to reinitialize the converter. */
851 _nl_free_domain_conv (domain);
852 _nl_init_domain_conv (domain_file, domain, domainbinding);
857 domain->conv != (__gconv_t) -1
860 domain->conv != (iconv_t) -1
865 /* We are supposed to do a conversion. First allocate an
866 appropriate table with the same structure as the table
867 of translations in the file, where we can put the pointers
868 to the converted strings in.
869 There is a slight complication with plural entries. They
870 are represented by consecutive NUL terminated strings. We
871 handle this case by converting RESULTLEN bytes, including
874 if (domain->conv_tab == NULL
875 && ((domain->conv_tab =
876 (char **) calloc (nstrings + domain->n_sysdep_strings,
879 /* Mark that we didn't succeed allocating a table. */
880 domain->conv_tab = (char **) -1;
882 if (__builtin_expect (domain->conv_tab == (char **) -1, 0))
883 /* Nothing we can do, no more memory. */
886 if (domain->conv_tab[act] == NULL)
888 /* We haven't used this string so far, so it is not
889 translated yet. Do this now. */
890 /* We use a bit more efficient memory handling.
891 We allocate always larger blocks which get used over
892 time. This is faster than many small allocations. */
893 __libc_lock_define_initialized (static, lock)
894 # define INITIAL_BLOCK_SIZE 4080
895 static unsigned char *freemem;
896 static size_t freemem_size;
898 const unsigned char *inbuf;
899 unsigned char *outbuf;
902 transmem_block_t *transmem_list = NULL;
905 __libc_lock_lock (lock);
907 inbuf = (const unsigned char *) result;
908 outbuf = freemem + sizeof (size_t);
913 transmem_block_t *newmem;
915 size_t non_reversible;
918 if (freemem_size < sizeof (size_t))
921 res = __gconv (domain->conv,
922 &inbuf, inbuf + resultlen,
924 outbuf + freemem_size - sizeof (size_t),
927 if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT)
930 if (res != __GCONV_FULL_OUTPUT)
932 __libc_lock_unlock (lock);
939 const char *inptr = (const char *) inbuf;
940 size_t inleft = resultlen;
941 char *outptr = (char *) outbuf;
944 if (freemem_size < sizeof (size_t))
947 outleft = freemem_size - sizeof (size_t);
948 if (iconv (domain->conv,
949 (ICONV_CONST char **) &inptr, &inleft,
953 outbuf = (unsigned char *) outptr;
958 __libc_lock_unlock (lock);
965 /* We must allocate a new buffer or resize the old one. */
966 if (malloc_count > 0)
969 freemem_size = malloc_count * INITIAL_BLOCK_SIZE;
970 newmem = (transmem_block_t *) realloc (transmem_list,
974 transmem_list = transmem_list->next;
977 struct transmem_list *old = transmem_list;
979 transmem_list = transmem_list->next;
987 freemem_size = INITIAL_BLOCK_SIZE;
988 newmem = (transmem_block_t *) malloc (freemem_size);
990 if (__builtin_expect (newmem == NULL, 0))
994 __libc_lock_unlock (lock);
999 /* Add the block to the list of blocks we have to free
1001 newmem->next = transmem_list;
1002 transmem_list = newmem;
1004 freemem = newmem->data;
1005 freemem_size -= offsetof (struct transmem_list, data);
1007 transmem_list = newmem;
1011 outbuf = freemem + sizeof (size_t);
1014 /* We have now in our buffer a converted string. Put this
1015 into the table of conversions. */
1016 *(size_t *) freemem = outbuf - freemem - sizeof (size_t);
1017 domain->conv_tab[act] = (char *) freemem;
1018 /* Shrink freemem, but keep it aligned. */
1019 freemem_size -= outbuf - freemem;
1021 freemem += freemem_size & (alignof (size_t) - 1);
1022 freemem_size = freemem_size & ~ (alignof (size_t) - 1);
1024 __libc_lock_unlock (lock);
1027 /* Now domain->conv_tab[act] contains the translation of all
1028 the plural variants. */
1029 result = domain->conv_tab[act] + sizeof (size_t);
1030 resultlen = *(size_t *) domain->conv_tab[act];
1034 /* The result string is converted. */
1036 #endif /* _LIBC || HAVE_ICONV */
1038 *lengthp = resultlen;
1043 /* Look up a plural variant. */
1046 plural_lookup (domain, n, translation, translation_len)
1047 struct loaded_l10nfile *domain;
1048 unsigned long int n;
1049 const char *translation;
1050 size_t translation_len;
1052 struct loaded_domain *domaindata = (struct loaded_domain *) domain->data;
1053 unsigned long int index;
1056 index = plural_eval (domaindata->plural, n);
1057 if (index >= domaindata->nplurals)
1058 /* This should never happen. It means the plural expression and the
1059 given maximum value do not match. */
1062 /* Skip INDEX strings at TRANSLATION. */
1067 p = __rawmemchr (p, '\0');
1069 p = strchr (p, '\0');
1071 /* And skip over the NUL byte. */
1074 if (p >= translation + translation_len)
1075 /* This should never happen. It means the plural expression
1076 evaluated to a value larger than the number of variants
1077 available for MSGID1. */
1078 return (char *) translation;
1084 /* Return string representation of locale CATEGORY. */
1087 category_to_name (category)
1096 retval = "LC_COLLATE";
1101 retval = "LC_CTYPE";
1106 retval = "LC_MONETARY";
1111 retval = "LC_NUMERIC";
1121 retval = "LC_MESSAGES";
1126 retval = "LC_RESPONSE";
1131 /* This might not make sense but is perhaps better than any other
1137 /* If you have a better idea for a default value let me know. */
1145 /* Guess value of current locale from value of the environment variables. */
1148 guess_category_value (category, categoryname)
1150 const char *categoryname;
1152 const char *language;
1155 /* The highest priority value is the `LANGUAGE' environment
1156 variable. But we don't use the value if the currently selected
1157 locale is the C locale. This is a GNU extension. */
1158 language = getenv ("LANGUAGE");
1159 if (language != NULL && language[0] == '\0')
1162 /* We have to proceed with the POSIX methods of looking to `LC_ALL',
1163 `LC_xxx', and `LANG'. On some systems this can be done by the
1164 `setlocale' function itself. */
1166 retval = __current_locale_name (category);
1168 retval = _nl_locale_name (category, categoryname);
1171 /* Ignore LANGUAGE if the locale is set to "C" because
1172 1. "C" locale usually uses the ASCII encoding, and most international
1173 messages use non-ASCII characters. These characters get displayed
1174 as question marks (if using glibc's iconv()) or as invalid 8-bit
1175 characters (because other iconv()s refuse to convert most non-ASCII
1176 characters to ASCII). In any case, the output is ugly.
1177 2. The precise output of some programs in the "C" locale is specified
1178 by POSIX and should not depend on environment variables like
1179 "LANGUAGE". We allow such programs to use gettext(). */
1180 return language != NULL && strcmp (retval, "C") != 0 ? language : retval;
1183 /* @@ begin of epilog @@ */
1185 /* We don't want libintl.a to depend on any other library. So we
1186 avoid the non-standard function stpcpy. In GNU C Library this
1187 function is available, though. Also allow the symbol HAVE_STPCPY
1189 #if !_LIBC && !HAVE_STPCPY
1195 while ((*dest++ = *src++) != '\0')
1201 #if !_LIBC && !HAVE_MEMPCPY
1203 mempcpy (dest, src, n)
1208 return (void *) ((char *) memcpy (dest, src, n) + n);
1214 /* If we want to free all resources we have to do some work at
1216 libc_freeres_fn (free_mem)
1220 while (_nl_domain_bindings != NULL)
1222 struct binding *oldp = _nl_domain_bindings;
1223 _nl_domain_bindings = _nl_domain_bindings->next;
1224 if (oldp->dirname != INTUSE(_nl_default_dirname))
1225 /* Yes, this is a pointer comparison. */
1226 free (oldp->dirname);
1227 free (oldp->codeset);
1231 if (_nl_current_default_domain != _nl_default_default_domain)
1232 /* Yes, again a pointer comparison. */
1233 free ((char *) _nl_current_default_domain);
1235 /* Remove the search tree with the known translations. */
1236 __tdestroy (root, free);
1239 while (transmem_list != NULL)
1241 old = transmem_list;
1242 transmem_list = transmem_list->next;