| /* Implementation of the internal dcigettext function. |
| Copyright (C) 1995-1999, 2000-2003 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 <string.h> to provide a prototype for mempcpy(). |
| This must come before <config.h> because <config.h> may include |
| <features.h>, and once <features.h> has been included, it's too late. */ |
| #ifndef _GNU_SOURCE |
| # define _GNU_SOURCE 1 |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <sys/types.h> |
| |
| #ifdef __GNUC__ |
| # define alloca __builtin_alloca |
| # define HAVE_ALLOCA 1 |
| #else |
| # ifdef _MSC_VER |
| # include <malloc.h> |
| # define alloca _alloca |
| # else |
| # if defined HAVE_ALLOCA_H || defined _LIBC |
| # include <alloca.h> |
| # else |
| # ifdef _AIX |
| #pragma alloca |
| # else |
| # ifndef alloca |
| char *alloca (); |
| # endif |
| # endif |
| # endif |
| # endif |
| #endif |
| |
| #include <errno.h> |
| #ifndef errno |
| extern int errno; |
| #endif |
| #ifndef __set_errno |
| # define __set_errno(val) errno = (val) |
| #endif |
| |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #if defined HAVE_UNISTD_H || defined _LIBC |
| # include <unistd.h> |
| #endif |
| |
| #include <locale.h> |
| |
| #ifdef _LIBC |
| /* Guess whether integer division by zero raises signal SIGFPE. |
| Set to 1 only if you know for sure. In case of doubt, set to 0. */ |
| # if defined __alpha__ || defined __arm__ || defined __i386__ \ |
| || defined __m68k__ || defined __s390__ |
| # define INTDIV0_RAISES_SIGFPE 1 |
| # else |
| # define INTDIV0_RAISES_SIGFPE 0 |
| # endif |
| #endif |
| #if !INTDIV0_RAISES_SIGFPE |
| # include <signal.h> |
| #endif |
| |
| #if defined HAVE_SYS_PARAM_H || defined _LIBC |
| # include <sys/param.h> |
| #endif |
| |
| #include "gettextP.h" |
| #include "plural-exp.h" |
| #ifdef _LIBC |
| # include <libintl.h> |
| #else |
| # include "libgnuintl.h" |
| #endif |
| #include "hash-string.h" |
| |
| /* Thread safetyness. */ |
| #ifdef _LIBC |
| # include <bits/libc-lock.h> |
| #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 libintl_nl_default_default_domain |
| # define _nl_current_default_domain libintl_nl_current_default_domain |
| # define _nl_default_dirname libintl_nl_default_dirname |
| # define _nl_domain_bindings libintl_nl_domain_bindings |
| #endif |
| |
| /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */ |
| #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 <limits.h> |
| #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 <sys/param.h> |
| #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 |
| |
| /* 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 <search.h> |
| |
| 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 |
| |
| #ifndef INTVARDEF |
| # define INTVARDEF(name) |
| #endif |
| #ifndef INTUSE |
| # define INTUSE(name) name |
| #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[] attribute_hidden = "messages"; |
| |
| /* Value used as the default domain for gettext(3). */ |
| const char *_nl_current_default_domain attribute_hidden |
| = _nl_default_default_domain; |
| |
| /* Contains the default location of the message catalogs. */ |
| #if defined __EMX__ |
| extern const char _nl_default_dirname[]; |
| #else |
| const char _nl_default_dirname[] = LOCALEDIR; |
| INTVARDEF (_nl_default_dirname) |
| #endif |
| |
| /* 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 const char *guess_category_value PARAMS ((int category, |
| const char *categoryname)) |
| internal_function; |
| #ifdef _LIBC |
| # include "../locale/localeinfo.h" |
| # define category_to_name(category) _nl_category_names[category] |
| #else |
| static const char *category_to_name PARAMS ((int category)) internal_function; |
| #endif |
| |
| |
| /* 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 freea(p) /* nothing */ |
| # 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->address); \ |
| free (old); \ |
| } \ |
| } while (0) |
| # undef alloca |
| # define alloca(size) (malloc (size)) |
| # define freea(p) free (p) |
| #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 libintl_dcigettext |
| #endif |
| |
| /* Lock variable to protect the global data in the gettext implementation. */ |
| #ifdef _LIBC |
| __libc_rwlock_define_initialized (, _nl_state_lock attribute_hidden) |
| #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 |
| |
| /* Get the function to evaluate the plural expression. */ |
| #include "eval-plural.h" |
| |
| /* 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; |
| |
| #ifdef _LIBC |
| if (category < 0 || category >= __LC_LAST || category == LC_ALL) |
| /* Bogus. */ |
| return (plural == 0 |
| ? (char *) msgid1 |
| /* Use the Germanic plural rule. */ |
| : n == 1 ? (char *) msgid1 : (char *) msgid2); |
| #endif |
| |
| __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; |
| |
| /* OS/2 specific: backward compatibility with older libintl versions */ |
| #ifdef LC_MESSAGES_COMPAT |
| if (category == LC_MESSAGES_COMPAT) |
| category = LC_MESSAGES; |
| #endif |
| |
| #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); |
| freea (search); |
| 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 *) INTUSE(_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. */ |
| goto return_untranslated; |
| |
| 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) |
| break; |
| |
| /* 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); |
| #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 |
| __set_errno (saved_errno); |
| |
| /* Now deal with plural. */ |
| if (plural) |
| retval = plural_lookup (domain, n, retval, retlen); |
| |
| __libc_rwlock_unlock (_nl_state_lock); |
| return retval; |
| } |
| } |
| } |
| |
| return_untranslated: |
| /* Return the untranslated MSGID. */ |
| FREE_BLOCKS (block_list); |
| __libc_rwlock_unlock (_nl_state_lock); |
| #ifndef _LIBC |
| if (!ENABLE_SECURE) |
| { |
| extern void _nl_log_untranslated PARAMS ((const char *logfilename, |
| const char *domainname, |
| const char *msgid1, |
| const char *msgid2, |
| int plural)); |
| const char *logfilename = getenv ("GETTEXT_LOG_UNTRANSLATED"); |
| |
| if (logfilename != NULL && logfilename[0] != '\0') |
| _nl_log_untranslated (logfilename, domainname, msgid1, msgid2, plural); |
| } |
| #endif |
| __set_errno (saved_errno); |
| return (plural == 0 |
| ? (char *) msgid1 |
| /* Use the Germanic plural rule. */ |
| : n == 1 ? (char *) msgid1 : (char *) msgid2); |
| } |
| |
| |
| 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; |
| nls_uint32 nstrings; |
| 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; |
| |
| nstrings = domain->nstrings; |
| |
| /* Locate the MSGID and its translation. */ |
| if (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_hash_tab, domain->hash_tab[idx]); |
| |
| if (nstr == 0) |
| /* Hash table entry is empty. */ |
| return NULL; |
| |
| nstr--; |
| |
| /* Compare msgid with the original string at index nstr. |
| We compare the lengths with >=, not ==, because plural entries |
| are represented by strings with an embedded NUL. */ |
| if (nstr < nstrings |
| ? W (domain->must_swap, domain->orig_tab[nstr].length) >= len |
| && (strcmp (msgid, |
| domain->data + W (domain->must_swap, |
| domain->orig_tab[nstr].offset)) |
| == 0) |
| : domain->orig_sysdep_tab[nstr - nstrings].length > len |
| && (strcmp (msgid, |
| domain->orig_sysdep_tab[nstr - nstrings].pointer) |
| == 0)) |
| { |
| act = nstr; |
| 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 = 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. */ |
| if (act < nstrings) |
| { |
| result = (char *) |
| (domain->data + W (domain->must_swap, domain->trans_tab[act].offset)); |
| resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1; |
| } |
| else |
| { |
| result = (char *) domain->trans_sysdep_tab[act - nstrings].pointer; |
| resultlen = domain->trans_sysdep_tab[act - nstrings].length; |
| } |
| |
| #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 (nstrings + domain->n_sysdep_strings, |
| 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; |
| } |
| |
| #ifndef _LIBC |
| /* 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; |
| } |
| #endif |
| |
| /* 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. */ |
| #ifdef _LIBC |
| retval = __current_locale_name (category); |
| #else |
| retval = _nl_locale_name (category, categoryname); |
| #endif |
| |
| /* Ignore LANGUAGE if the locale is set to "C" because |
| 1. "C" locale usually uses the ASCII encoding, and most international |
| messages use non-ASCII characters. These characters get displayed |
| as question marks (if using glibc's iconv()) or as invalid 8-bit |
| characters (because other iconv()s refuse to convert most non-ASCII |
| characters to ASCII). In any case, the output is ugly. |
| 2. The precise output of some programs in the "C" locale is specified |
| by POSIX and should not depend on environment variables like |
| "LANGUAGE". We allow such programs to use gettext(). */ |
| 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. */ |
| libc_freeres_fn (free_mem) |
| { |
| void *old; |
| |
| while (_nl_domain_bindings != NULL) |
| { |
| struct binding *oldp = _nl_domain_bindings; |
| _nl_domain_bindings = _nl_domain_bindings->next; |
| if (oldp->dirname != INTUSE(_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); |
| } |
| } |
| #endif |