/* Implementation of the internal dcigettext function. Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Tell glibc's to provide a prototype for mempcpy(). This must come before because may include , and once has been included, it's too late. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE 1 #endif #ifdef HAVE_CONFIG_H # include #endif #include #ifdef __GNUC__ # define alloca __builtin_alloca # define HAVE_ALLOCA 1 #else # if defined HAVE_ALLOCA_H || defined _LIBC # include # else # ifdef _AIX #pragma alloca # else # ifndef alloca char *alloca (); # endif # endif # endif #endif #include #ifndef errno extern int errno; #endif #ifndef __set_errno # define __set_errno(val) errno = (val) #endif #include #include #include #if !HAVE_STRCHR && !defined _LIBC # ifndef strchr # define strchr index # endif #endif #if defined HAVE_UNISTD_H || defined _LIBC # include #endif #include #if defined HAVE_SYS_PARAM_H || defined _LIBC # include #endif #include "gettextP.h" #ifdef _LIBC # include #else # include "libgnuintl.h" #endif #include "hash-string.h" /* Thread safetyness. */ #ifdef _LIBC # include #else /* Provide dummy implementation if this is outside glibc. */ # define __libc_lock_define_initialized(CLASS, NAME) # define __libc_lock_lock(NAME) # define __libc_lock_unlock(NAME) # define __libc_rwlock_define_initialized(CLASS, NAME) # define __libc_rwlock_rdlock(NAME) # define __libc_rwlock_unlock(NAME) #endif /* Alignment of types. */ #if defined __GNUC__ && __GNUC__ >= 2 # define alignof(TYPE) __alignof__ (TYPE) #else # define alignof(TYPE) \ ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2) #endif /* The internal variables in the standalone libintl.a must have different names than the internal variables in GNU libc, otherwise programs using libintl.a cannot be linked statically. */ #if !defined _LIBC # define _nl_default_default_domain _nl_default_default_domain__ # define _nl_current_default_domain _nl_current_default_domain__ # define _nl_default_dirname _nl_default_dirname__ # define _nl_domain_bindings _nl_domain_bindings__ #endif /* Some compilers, like SunOS4 cc, don't have offsetof in . */ #ifndef offsetof # define offsetof(type,ident) ((size_t)&(((type*)0)->ident)) #endif /* @@ end of prolog @@ */ #ifdef _LIBC /* Rename the non ANSI C functions. This is required by the standard because some ANSI C functions will require linking with this object file and the name space must not be polluted. */ # define getcwd __getcwd # ifndef stpcpy # define stpcpy __stpcpy # endif # define tfind __tfind #else # if !defined HAVE_GETCWD char *getwd (); # define getcwd(buf, max) getwd (buf) # else char *getcwd (); # endif # ifndef HAVE_STPCPY static char *stpcpy PARAMS ((char *dest, const char *src)); # endif # ifndef HAVE_MEMPCPY static void *mempcpy PARAMS ((void *dest, const void *src, size_t n)); # endif #endif /* Amount to increase buffer size by in each try. */ #define PATH_INCR 32 /* The following is from pathmax.h. */ /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define PATH_MAX but might cause redefinition warnings when sys/param.h is later included (as on MORE/BSD 4.3). */ #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__) # include #endif #ifndef _POSIX_PATH_MAX # define _POSIX_PATH_MAX 255 #endif #if !defined PATH_MAX && defined _PC_PATH_MAX # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX)) #endif /* Don't include sys/param.h if it already has been. */ #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN # include #endif #if !defined PATH_MAX && defined MAXPATHLEN # define PATH_MAX MAXPATHLEN #endif #ifndef PATH_MAX # define PATH_MAX _POSIX_PATH_MAX #endif /* Pathname support. ISSLASH(C) tests whether C is a directory separator character. IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not, it may be concatenated to a directory pathname. IS_PATH_WITH_DIR(P) tests whether P contains a directory specification. */ #if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__ /* Win32, OS/2, DOS */ # define ISSLASH(C) ((C) == '/' || (C) == '\\') # define HAS_DEVICE(P) \ ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \ && (P)[1] == ':') # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P)) # define IS_PATH_WITH_DIR(P) \ (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P)) #else /* Unix */ # define ISSLASH(C) ((C) == '/') # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0]) # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL) #endif /* XPG3 defines the result of `setlocale (category, NULL)' as: ``Directs `setlocale()' to query `category' and return the current setting of `local'.'' However it does not specify the exact format. Neither do SUSV2 and ISO C 99. So we can use this feature only on selected systems (e.g. those using GNU C Library). */ #if defined _LIBC || (defined __GNU_LIBRARY__ && __GNU_LIBRARY__ >= 2) # define HAVE_LOCALE_NULL #endif /* This is the type used for the search tree where known translations are stored. */ struct known_translation_t { /* Domain in which to search. */ char *domainname; /* The category. */ int category; /* State of the catalog counter at the point the string was found. */ int counter; /* Catalog where the string was found. */ struct loaded_l10nfile *domain; /* And finally the translation. */ const char *translation; size_t translation_length; /* Pointer to the string in question. */ char msgid[ZERO]; }; /* Root of the search tree with known translations. We can use this only if the system provides the `tsearch' function family. */ #if defined HAVE_TSEARCH || defined _LIBC # include static void *root; # ifdef _LIBC # define tsearch __tsearch # endif /* Function to compare two entries in the table of known translations. */ static int transcmp PARAMS ((const void *p1, const void *p2)); static int transcmp (p1, p2) const void *p1; const void *p2; { const struct known_translation_t *s1; const struct known_translation_t *s2; int result; s1 = (const struct known_translation_t *) p1; s2 = (const struct known_translation_t *) p2; result = strcmp (s1->msgid, s2->msgid); if (result == 0) { result = strcmp (s1->domainname, s2->domainname); if (result == 0) /* We compare the category last (though this is the cheapest operation) since it is hopefully always the same (namely LC_MESSAGES). */ result = s1->category - s2->category; } return result; } #endif /* Name of the default domain used for gettext(3) prior any call to textdomain(3). The default value for this is "messages". */ const char _nl_default_default_domain[] = "messages"; /* Value used as the default domain for gettext(3). */ const char *_nl_current_default_domain = _nl_default_default_domain; /* Contains the default location of the message catalogs. */ const char _nl_default_dirname[] = LOCALEDIR; /* List with bindings of specific domains created by bindtextdomain() calls. */ struct binding *_nl_domain_bindings; /* Prototypes for local functions. */ static char *plural_lookup PARAMS ((struct loaded_l10nfile *domain, unsigned long int n, const char *translation, size_t translation_len)) internal_function; static unsigned long int plural_eval PARAMS ((struct expression *pexp, unsigned long int n)) internal_function; static const char *category_to_name PARAMS ((int category)) internal_function; static const char *guess_category_value PARAMS ((int category, const char *categoryname)) internal_function; /* For those loosing systems which don't have `alloca' we have to add some additional code emulating it. */ #ifdef HAVE_ALLOCA /* Nothing has to be done. */ # define ADD_BLOCK(list, address) /* nothing */ # define FREE_BLOCKS(list) /* nothing */ #else struct block_list { void *address; struct block_list *next; }; # define ADD_BLOCK(list, addr) \ do { \ struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \ /* If we cannot get a free block we cannot add the new element to \ the list. */ \ if (newp != NULL) { \ newp->address = (addr); \ newp->next = (list); \ (list) = newp; \ } \ } while (0) # define FREE_BLOCKS(list) \ do { \ while (list != NULL) { \ struct block_list *old = list; \ list = list->next; \ free (old); \ } \ } while (0) # undef alloca # define alloca(size) (malloc (size)) #endif /* have alloca */ #ifdef _LIBC /* List of blocks allocated for translations. */ typedef struct transmem_list { struct transmem_list *next; char data[ZERO]; } transmem_block_t; static struct transmem_list *transmem_list; #else typedef unsigned char transmem_block_t; #endif /* Names for the libintl functions are a problem. They must not clash with existing names and they should follow ANSI C. But this source code is also used in GNU C Library where the names have a __ prefix. So we have to make a difference here. */ #ifdef _LIBC # define DCIGETTEXT __dcigettext #else # define DCIGETTEXT dcigettext__ #endif /* Lock variable to protect the global data in the gettext implementation. */ #ifdef _LIBC __libc_rwlock_define_initialized (, _nl_state_lock) #endif /* Checking whether the binaries runs SUID must be done and glibc provides easier methods therefore we make a difference here. */ #ifdef _LIBC # define ENABLE_SECURE __libc_enable_secure # define DETERMINE_SECURE #else # ifndef HAVE_GETUID # define getuid() 0 # endif # ifndef HAVE_GETGID # define getgid() 0 # endif # ifndef HAVE_GETEUID # define geteuid() getuid() # endif # ifndef HAVE_GETEGID # define getegid() getgid() # endif static int enable_secure; # define ENABLE_SECURE (enable_secure == 1) # define DETERMINE_SECURE \ if (enable_secure == 0) \ { \ if (getuid () != geteuid () || getgid () != getegid ()) \ enable_secure = 1; \ else \ enable_secure = -1; \ } #endif /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY locale and, if PLURAL is nonzero, search over string depending on the plural form determined by N. */ char * DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category) const char *domainname; const char *msgid1; const char *msgid2; int plural; unsigned long int n; int category; { #ifndef HAVE_ALLOCA struct block_list *block_list = NULL; #endif struct loaded_l10nfile *domain; struct binding *binding; const char *categoryname; const char *categoryvalue; char *dirname, *xdomainname; char *single_locale; char *retval; size_t retlen; int saved_errno; #if defined HAVE_TSEARCH || defined _LIBC struct known_translation_t *search; struct known_translation_t **foundp = NULL; size_t msgid_len; #endif size_t domainname_len; /* If no real MSGID is given return NULL. */ if (msgid1 == NULL) return NULL; __libc_rwlock_rdlock (_nl_state_lock); /* If DOMAINNAME is NULL, we are interested in the default domain. If CATEGORY is not LC_MESSAGES this might not make much sense but the definition left this undefined. */ if (domainname == NULL) domainname = _nl_current_default_domain; #if defined HAVE_TSEARCH || defined _LIBC msgid_len = strlen (msgid1) + 1; /* Try to find the translation among those which we found at some time. */ search = (struct known_translation_t *) alloca (offsetof (struct known_translation_t, msgid) + msgid_len); memcpy (search->msgid, msgid1, msgid_len); search->domainname = (char *) domainname; search->category = category; foundp = (struct known_translation_t **) tfind (search, &root, transcmp); if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr) { /* Now deal with plural. */ if (plural) retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation, (*foundp)->translation_length); else retval = (char *) (*foundp)->translation; __libc_rwlock_unlock (_nl_state_lock); return retval; } #endif /* Preserve the `errno' value. */ saved_errno = errno; /* See whether this is a SUID binary or not. */ DETERMINE_SECURE; /* First find matching binding. */ for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) { int compare = strcmp (domainname, binding->domainname); if (compare == 0) /* We found it! */ break; if (compare < 0) { /* It is not in the list. */ binding = NULL; break; } } if (binding == NULL) dirname = (char *) _nl_default_dirname; else if (IS_ABSOLUTE_PATH (binding->dirname)) dirname = binding->dirname; else { /* We have a relative path. Make it absolute now. */ size_t dirname_len = strlen (binding->dirname) + 1; size_t path_max; char *ret; path_max = (unsigned int) PATH_MAX; path_max += 2; /* The getcwd docs say to do this. */ for (;;) { dirname = (char *) alloca (path_max + dirname_len); ADD_BLOCK (block_list, dirname); __set_errno (0); ret = getcwd (dirname, path_max); if (ret != NULL || errno != ERANGE) break; path_max += path_max / 2; path_max += PATH_INCR; } if (ret == NULL) { /* We cannot get the current working directory. Don't signal an error but simply return the default string. */ FREE_BLOCKS (block_list); __libc_rwlock_unlock (_nl_state_lock); __set_errno (saved_errno); return (plural == 0 ? (char *) msgid1 /* Use the Germanic plural rule. */ : n == 1 ? (char *) msgid1 : (char *) msgid2); } stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname); } /* Now determine the symbolic name of CATEGORY and its value. */ categoryname = category_to_name (category); categoryvalue = guess_category_value (category, categoryname); domainname_len = strlen (domainname); xdomainname = (char *) alloca (strlen (categoryname) + domainname_len + 5); ADD_BLOCK (block_list, xdomainname); stpcpy (mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"), domainname, domainname_len), ".mo"); /* Creating working area. */ single_locale = (char *) alloca (strlen (categoryvalue) + 1); ADD_BLOCK (block_list, single_locale); /* Search for the given string. This is a loop because we perhaps got an ordered list of languages to consider for the translation. */ while (1) { /* Make CATEGORYVALUE point to the next element of the list. */ while (categoryvalue[0] != '\0' && categoryvalue[0] == ':') ++categoryvalue; if (categoryvalue[0] == '\0') { /* The whole contents of CATEGORYVALUE has been searched but no valid entry has been found. We solve this situation by implicitly appending a "C" entry, i.e. no translation will take place. */ single_locale[0] = 'C'; single_locale[1] = '\0'; } else { char *cp = single_locale; while (categoryvalue[0] != '\0' && categoryvalue[0] != ':') *cp++ = *categoryvalue++; *cp = '\0'; /* When this is a SUID binary we must not allow accessing files outside the dedicated directories. */ if (ENABLE_SECURE && IS_PATH_WITH_DIR (single_locale)) /* Ingore this entry. */ continue; } /* If the current locale value is C (or POSIX) we don't load a domain. Return the MSGID. */ if (strcmp (single_locale, "C") == 0 || strcmp (single_locale, "POSIX") == 0) { FREE_BLOCKS (block_list); __libc_rwlock_unlock (_nl_state_lock); __set_errno (saved_errno); return (plural == 0 ? (char *) msgid1 /* Use the Germanic plural rule. */ : n == 1 ? (char *) msgid1 : (char *) msgid2); } /* Find structure describing the message catalog matching the DOMAINNAME and CATEGORY. */ domain = _nl_find_domain (dirname, single_locale, xdomainname, binding); if (domain != NULL) { retval = _nl_find_msg (domain, binding, msgid1, &retlen); if (retval == NULL) { int cnt; for (cnt = 0; domain->successor[cnt] != NULL; ++cnt) { retval = _nl_find_msg (domain->successor[cnt], binding, msgid1, &retlen); if (retval != NULL) { domain = domain->successor[cnt]; break; } } } if (retval != NULL) { /* Found the translation of MSGID1 in domain DOMAIN: starting at RETVAL, RETLEN bytes. */ FREE_BLOCKS (block_list); __set_errno (saved_errno); #if defined HAVE_TSEARCH || defined _LIBC if (foundp == NULL) { /* Create a new entry and add it to the search tree. */ struct known_translation_t *newp; newp = (struct known_translation_t *) malloc (offsetof (struct known_translation_t, msgid) + msgid_len + domainname_len + 1); if (newp != NULL) { newp->domainname = mempcpy (newp->msgid, msgid1, msgid_len); memcpy (newp->domainname, domainname, domainname_len + 1); newp->category = category; newp->counter = _nl_msg_cat_cntr; newp->domain = domain; newp->translation = retval; newp->translation_length = retlen; /* Insert the entry in the search tree. */ foundp = (struct known_translation_t **) tsearch (newp, &root, transcmp); if (foundp == NULL || __builtin_expect (*foundp != newp, 0)) /* The insert failed. */ free (newp); } } else { /* We can update the existing entry. */ (*foundp)->counter = _nl_msg_cat_cntr; (*foundp)->domain = domain; (*foundp)->translation = retval; (*foundp)->translation_length = retlen; } #endif /* Now deal with plural. */ if (plural) retval = plural_lookup (domain, n, retval, retlen); __libc_rwlock_unlock (_nl_state_lock); return retval; } } } /* NOTREACHED */ } char * internal_function _nl_find_msg (domain_file, domainbinding, msgid, lengthp) struct loaded_l10nfile *domain_file; struct binding *domainbinding; const char *msgid; size_t *lengthp; { struct loaded_domain *domain; size_t act; char *result; size_t resultlen; if (domain_file->decided == 0) _nl_load_domain (domain_file, domainbinding); if (domain_file->data == NULL) return NULL; domain = (struct loaded_domain *) domain_file->data; /* Locate the MSGID and its translation. */ if (domain->hash_size > 2 && domain->hash_tab != NULL) { /* Use the hashing table. */ nls_uint32 len = strlen (msgid); nls_uint32 hash_val = hash_string (msgid); nls_uint32 idx = hash_val % domain->hash_size; nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2)); while (1) { nls_uint32 nstr = W (domain->must_swap, domain->hash_tab[idx]); if (nstr == 0) /* Hash table entry is empty. */ return NULL; /* Compare msgid with the original string at index nstr-1. We compare the lengths with >=, not ==, because plural entries are represented by strings with an embedded NUL. */ if (W (domain->must_swap, domain->orig_tab[nstr - 1].length) >= len && (strcmp (msgid, domain->data + W (domain->must_swap, domain->orig_tab[nstr - 1].offset)) == 0)) { act = nstr - 1; goto found; } if (idx >= domain->hash_size - incr) idx -= domain->hash_size - incr; else idx += incr; } /* NOTREACHED */ } else { /* Try the default method: binary search in the sorted array of messages. */ size_t top, bottom; bottom = 0; top = domain->nstrings; while (bottom < top) { int cmp_val; act = (bottom + top) / 2; cmp_val = strcmp (msgid, (domain->data + W (domain->must_swap, domain->orig_tab[act].offset))); if (cmp_val < 0) top = act; else if (cmp_val > 0) bottom = act + 1; else goto found; } /* No translation was found. */ return NULL; } found: /* The translation was found at index ACT. If we have to convert the string to use a different character set, this is the time. */ result = ((char *) domain->data + W (domain->must_swap, domain->trans_tab[act].offset)); resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1; #if defined _LIBC || HAVE_ICONV if (domain->codeset_cntr != (domainbinding != NULL ? domainbinding->codeset_cntr : 0)) { /* The domain's codeset has changed through bind_textdomain_codeset() since the message catalog was initialized or last accessed. We have to reinitialize the converter. */ _nl_free_domain_conv (domain); _nl_init_domain_conv (domain_file, domain, domainbinding); } if ( # ifdef _LIBC domain->conv != (__gconv_t) -1 # else # if HAVE_ICONV domain->conv != (iconv_t) -1 # endif # endif ) { /* We are supposed to do a conversion. First allocate an appropriate table with the same structure as the table of translations in the file, where we can put the pointers to the converted strings in. There is a slight complication with plural entries. They are represented by consecutive NUL terminated strings. We handle this case by converting RESULTLEN bytes, including NULs. */ if (domain->conv_tab == NULL && ((domain->conv_tab = (char **) calloc (domain->nstrings, sizeof (char *))) == NULL)) /* Mark that we didn't succeed allocating a table. */ domain->conv_tab = (char **) -1; if (__builtin_expect (domain->conv_tab == (char **) -1, 0)) /* Nothing we can do, no more memory. */ goto converted; if (domain->conv_tab[act] == NULL) { /* We haven't used this string so far, so it is not translated yet. Do this now. */ /* We use a bit more efficient memory handling. We allocate always larger blocks which get used over time. This is faster than many small allocations. */ __libc_lock_define_initialized (static, lock) # define INITIAL_BLOCK_SIZE 4080 static unsigned char *freemem; static size_t freemem_size; const unsigned char *inbuf; unsigned char *outbuf; int malloc_count; # ifndef _LIBC transmem_block_t *transmem_list = NULL; # endif __libc_lock_lock (lock); inbuf = (const unsigned char *) result; outbuf = freemem + sizeof (size_t); malloc_count = 0; while (1) { transmem_block_t *newmem; # ifdef _LIBC size_t non_reversible; int res; if (freemem_size < sizeof (size_t)) goto resize_freemem; res = __gconv (domain->conv, &inbuf, inbuf + resultlen, &outbuf, outbuf + freemem_size - sizeof (size_t), &non_reversible); if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT) break; if (res != __GCONV_FULL_OUTPUT) { __libc_lock_unlock (lock); goto converted; } inbuf = result; # else # if HAVE_ICONV const char *inptr = (const char *) inbuf; size_t inleft = resultlen; char *outptr = (char *) outbuf; size_t outleft; if (freemem_size < sizeof (size_t)) goto resize_freemem; outleft = freemem_size - sizeof (size_t); if (iconv (domain->conv, (ICONV_CONST char **) &inptr, &inleft, &outptr, &outleft) != (size_t) (-1)) { outbuf = (unsigned char *) outptr; break; } if (errno != E2BIG) { __libc_lock_unlock (lock); goto converted; } # endif # endif resize_freemem: /* We must allocate a new buffer or resize the old one. */ if (malloc_count > 0) { ++malloc_count; freemem_size = malloc_count * INITIAL_BLOCK_SIZE; newmem = (transmem_block_t *) realloc (transmem_list, freemem_size); # ifdef _LIBC if (newmem != NULL) transmem_list = transmem_list->next; else { struct transmem_list *old = transmem_list; transmem_list = transmem_list->next; free (old); } # endif } else { malloc_count = 1; freemem_size = INITIAL_BLOCK_SIZE; newmem = (transmem_block_t *) malloc (freemem_size); } if (__builtin_expect (newmem == NULL, 0)) { freemem = NULL; freemem_size = 0; __libc_lock_unlock (lock); goto converted; } # ifdef _LIBC /* Add the block to the list of blocks we have to free at some point. */ newmem->next = transmem_list; transmem_list = newmem; freemem = newmem->data; freemem_size -= offsetof (struct transmem_list, data); # else transmem_list = newmem; freemem = newmem; # endif outbuf = freemem + sizeof (size_t); } /* We have now in our buffer a converted string. Put this into the table of conversions. */ *(size_t *) freemem = outbuf - freemem - sizeof (size_t); domain->conv_tab[act] = (char *) freemem; /* Shrink freemem, but keep it aligned. */ freemem_size -= outbuf - freemem; freemem = outbuf; freemem += freemem_size & (alignof (size_t) - 1); freemem_size = freemem_size & ~ (alignof (size_t) - 1); __libc_lock_unlock (lock); } /* Now domain->conv_tab[act] contains the translation of all the plural variants. */ result = domain->conv_tab[act] + sizeof (size_t); resultlen = *(size_t *) domain->conv_tab[act]; } converted: /* The result string is converted. */ #endif /* _LIBC || HAVE_ICONV */ *lengthp = resultlen; return result; } /* Look up a plural variant. */ static char * internal_function plural_lookup (domain, n, translation, translation_len) struct loaded_l10nfile *domain; unsigned long int n; const char *translation; size_t translation_len; { struct loaded_domain *domaindata = (struct loaded_domain *) domain->data; unsigned long int index; const char *p; index = plural_eval (domaindata->plural, n); if (index >= domaindata->nplurals) /* This should never happen. It means the plural expression and the given maximum value do not match. */ index = 0; /* Skip INDEX strings at TRANSLATION. */ p = translation; while (index-- > 0) { #ifdef _LIBC p = __rawmemchr (p, '\0'); #else p = strchr (p, '\0'); #endif /* And skip over the NUL byte. */ p++; if (p >= translation + translation_len) /* This should never happen. It means the plural expression evaluated to a value larger than the number of variants available for MSGID1. */ return (char *) translation; } return (char *) p; } /* Function to evaluate the plural expression and return an index value. */ static unsigned long int internal_function plural_eval (pexp, n) struct expression *pexp; unsigned long int n; { switch (pexp->nargs) { case 0: switch (pexp->operation) { case var: return n; case num: return pexp->val.num; default: break; } /* NOTREACHED */ break; case 1: { /* pexp->operation must be lnot. */ unsigned long int arg = plural_eval (pexp->val.args[0], n); return ! arg; } case 2: { unsigned long int leftarg = plural_eval (pexp->val.args[0], n); if (pexp->operation == lor) return leftarg || plural_eval (pexp->val.args[1], n); else if (pexp->operation == land) return leftarg && plural_eval (pexp->val.args[1], n); else { unsigned long int rightarg = plural_eval (pexp->val.args[1], n); switch (pexp->operation) { case mult: return leftarg * rightarg; case divide: return leftarg / rightarg; case module: return leftarg % rightarg; case plus: return leftarg + rightarg; case minus: return leftarg - rightarg; case less_than: return leftarg < rightarg; case greater_than: return leftarg > rightarg; case less_or_equal: return leftarg <= rightarg; case greater_or_equal: return leftarg >= rightarg; case equal: return leftarg == rightarg; case not_equal: return leftarg != rightarg; default: break; } } /* NOTREACHED */ break; } case 3: { /* pexp->operation must be qmop. */ unsigned long int boolarg = plural_eval (pexp->val.args[0], n); return plural_eval (pexp->val.args[boolarg ? 1 : 2], n); } } /* NOTREACHED */ return 0; } /* Return string representation of locale CATEGORY. */ static const char * internal_function category_to_name (category) int category; { const char *retval; switch (category) { #ifdef LC_COLLATE case LC_COLLATE: retval = "LC_COLLATE"; break; #endif #ifdef LC_CTYPE case LC_CTYPE: retval = "LC_CTYPE"; break; #endif #ifdef LC_MONETARY case LC_MONETARY: retval = "LC_MONETARY"; break; #endif #ifdef LC_NUMERIC case LC_NUMERIC: retval = "LC_NUMERIC"; break; #endif #ifdef LC_TIME case LC_TIME: retval = "LC_TIME"; break; #endif #ifdef LC_MESSAGES case LC_MESSAGES: retval = "LC_MESSAGES"; break; #endif #ifdef LC_RESPONSE case LC_RESPONSE: retval = "LC_RESPONSE"; break; #endif #ifdef LC_ALL case LC_ALL: /* This might not make sense but is perhaps better than any other value. */ retval = "LC_ALL"; break; #endif default: /* If you have a better idea for a default value let me know. */ retval = "LC_XXX"; } return retval; } /* Guess value of current locale from value of the environment variables. */ static const char * internal_function guess_category_value (category, categoryname) int category; const char *categoryname; { const char *language; const char *retval; /* The highest priority value is the `LANGUAGE' environment variable. But we don't use the value if the currently selected locale is the C locale. This is a GNU extension. */ language = getenv ("LANGUAGE"); if (language != NULL && language[0] == '\0') language = NULL; /* We have to proceed with the POSIX methods of looking to `LC_ALL', `LC_xxx', and `LANG'. On some systems this can be done by the `setlocale' function itself. */ #if defined _LIBC || (defined HAVE_SETLOCALE && defined HAVE_LC_MESSAGES && defined HAVE_LOCALE_NULL) retval = setlocale (category, NULL); #else /* Setting of LC_ALL overwrites all other. */ retval = getenv ("LC_ALL"); if (retval == NULL || retval[0] == '\0') { /* Next comes the name of the desired category. */ retval = getenv (categoryname); if (retval == NULL || retval[0] == '\0') { /* Last possibility is the LANG environment variable. */ retval = getenv ("LANG"); if (retval == NULL || retval[0] == '\0') /* We use C as the default domain. POSIX says this is implementation defined. */ return "C"; } } #endif return language != NULL && strcmp (retval, "C") != 0 ? language : retval; } /* @@ begin of epilog @@ */ /* We don't want libintl.a to depend on any other library. So we avoid the non-standard function stpcpy. In GNU C Library this function is available, though. Also allow the symbol HAVE_STPCPY to be defined. */ #if !_LIBC && !HAVE_STPCPY static char * stpcpy (dest, src) char *dest; const char *src; { while ((*dest++ = *src++) != '\0') /* Do nothing. */ ; return dest - 1; } #endif #if !_LIBC && !HAVE_MEMPCPY static void * mempcpy (dest, src, n) void *dest; const void *src; size_t n; { return (void *) ((char *) memcpy (dest, src, n) + n); } #endif #ifdef _LIBC /* If we want to free all resources we have to do some work at program's end. */ static void __attribute__ ((unused)) free_mem (void) { void *old; while (_nl_domain_bindings != NULL) { struct binding *oldp = _nl_domain_bindings; _nl_domain_bindings = _nl_domain_bindings->next; if (oldp->dirname != _nl_default_dirname) /* Yes, this is a pointer comparison. */ free (oldp->dirname); free (oldp->codeset); free (oldp); } if (_nl_current_default_domain != _nl_default_default_domain) /* Yes, again a pointer comparison. */ free ((char *) _nl_current_default_domain); /* Remove the search tree with the known translations. */ __tdestroy (root, free); root = NULL; while (transmem_list != NULL) { old = transmem_list; transmem_list = transmem_list->next; free (old); } } text_set_element (__libc_subfreeres, free_mem); #endif