| /* Copyright (C) 1995-2020 Free Software Foundation, Inc. |
| Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* Tell glibc's <string.h> to provide a prototype for stpcpy(). |
| 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 <string.h> |
| |
| #if defined _LIBC |
| # include <argz.h> |
| #endif |
| #include <ctype.h> |
| #include <sys/types.h> |
| #include <stdlib.h> |
| #if defined _WIN32 && !defined __CYGWIN__ |
| # include <wchar.h> |
| #endif |
| |
| #include "loadinfo.h" |
| |
| /* On some strange systems still no definition of NULL is found. Sigh! */ |
| #ifndef NULL |
| # if defined __STDC__ && __STDC__ |
| # define NULL ((void *) 0) |
| # else |
| # define NULL 0 |
| # endif |
| #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. */ |
| # ifndef stpcpy |
| # define stpcpy(dest, src) __stpcpy(dest, src) |
| # endif |
| #else |
| # ifndef HAVE_STPCPY |
| static char *stpcpy (char *dest, const char *src); |
| # endif |
| #endif |
| |
| #ifdef _LIBC |
| # define IS_ABSOLUTE_FILE_NAME(P) ((P)[0] == '/') |
| # define IS_RELATIVE_FILE_NAME(P) (! IS_ABSOLUTE_FILE_NAME (P)) |
| #else |
| # include "filename.h" |
| #endif |
| |
| /* Return number of bits set in X. */ |
| #ifndef ARCH_POP |
| static inline int |
| pop (int x) |
| { |
| /* We assume that no more than 16 bits are used. */ |
| x = ((x & ~0x5555) >> 1) + (x & 0x5555); |
| x = ((x & ~0x3333) >> 2) + (x & 0x3333); |
| x = ((x >> 4) + x) & 0x0f0f; |
| x = ((x >> 8) + x) & 0xff; |
| |
| return x; |
| } |
| #endif |
| |
| |
| struct loaded_l10nfile * |
| _nl_make_l10nflist (struct loaded_l10nfile **l10nfile_list, |
| const char *dirlist, size_t dirlist_len, |
| #if defined _WIN32 && !defined __CYGWIN__ |
| const wchar_t *wdirlist, size_t wdirlist_len, |
| #endif |
| int mask, const char *language, const char *territory, |
| const char *codeset, const char *normalized_codeset, |
| const char *modifier, |
| const char *filename, int do_allocate) |
| { |
| char *abs_filename; |
| #if defined _WIN32 && !defined __CYGWIN__ |
| wchar_t *abs_wfilename; |
| #endif |
| struct loaded_l10nfile **lastp; |
| struct loaded_l10nfile *retval; |
| size_t dirlist_count; |
| size_t entries; |
| int cnt; |
| |
| /* If LANGUAGE contains an absolute directory specification, we ignore |
| DIRLIST and WDIRLIST. */ |
| if (!IS_RELATIVE_FILE_NAME (language)) |
| { |
| dirlist_len = 0; |
| #if defined _WIN32 && !defined __CYGWIN__ |
| wdirlist_len = 0; |
| #endif |
| } |
| |
| /* Allocate room for the full file name. */ |
| abs_filename = (char *) malloc (dirlist_len |
| + strlen (language) |
| + ((mask & XPG_TERRITORY) != 0 |
| ? strlen (territory) + 1 : 0) |
| + ((mask & XPG_CODESET) != 0 |
| ? strlen (codeset) + 1 : 0) |
| + ((mask & XPG_NORM_CODESET) != 0 |
| ? strlen (normalized_codeset) + 1 : 0) |
| + ((mask & XPG_MODIFIER) != 0 |
| ? strlen (modifier) + 1 : 0) |
| + 1 + strlen (filename) + 1); |
| |
| if (abs_filename == NULL) |
| return NULL; |
| |
| /* Construct file name. */ |
| { |
| char *cp; |
| |
| cp = abs_filename; |
| if (dirlist_len > 0) |
| { |
| memcpy (cp, dirlist, dirlist_len); |
| #ifdef _LIBC |
| __argz_stringify (cp, dirlist_len, PATH_SEPARATOR); |
| #endif |
| cp += dirlist_len; |
| cp[-1] = '/'; |
| } |
| |
| cp = stpcpy (cp, language); |
| |
| if ((mask & XPG_TERRITORY) != 0) |
| { |
| *cp++ = '_'; |
| cp = stpcpy (cp, territory); |
| } |
| if ((mask & XPG_CODESET) != 0) |
| { |
| *cp++ = '.'; |
| cp = stpcpy (cp, codeset); |
| } |
| if ((mask & XPG_NORM_CODESET) != 0) |
| { |
| *cp++ = '.'; |
| cp = stpcpy (cp, normalized_codeset); |
| } |
| if ((mask & XPG_MODIFIER) != 0) |
| { |
| *cp++ = '@'; |
| cp = stpcpy (cp, modifier); |
| } |
| |
| *cp++ = '/'; |
| stpcpy (cp, filename); |
| } |
| |
| #if defined _WIN32 && !defined __CYGWIN__ |
| /* Construct wide-char file name. */ |
| if (wdirlist_len > 0) |
| { |
| /* Since dirlist_len == 0, just concatenate wdirlist and abs_filename. */ |
| /* An upper bound for wcslen (mbstowcs (abs_filename)). */ |
| size_t abs_filename_bound = mbstowcs (NULL, abs_filename, 0); |
| if (abs_filename_bound == (size_t)-1) |
| { |
| free (abs_filename); |
| return NULL; |
| } |
| |
| /* Allocate and fill abs_wfilename. */ |
| abs_wfilename = |
| (wchar_t *) |
| malloc ((wdirlist_len + abs_filename_bound + 1) * sizeof (wchar_t)); |
| if (abs_wfilename == NULL) |
| { |
| free (abs_filename); |
| return NULL; |
| } |
| wmemcpy (abs_wfilename, wdirlist, wdirlist_len - 1); |
| abs_wfilename[wdirlist_len - 1] = L'/'; |
| if (mbstowcs (abs_wfilename + wdirlist_len, abs_filename, |
| abs_filename_bound + 1) |
| > abs_filename_bound) |
| { |
| free (abs_filename); |
| free (abs_wfilename); |
| return NULL; |
| } |
| |
| free (abs_filename); |
| abs_filename = NULL; |
| } |
| else |
| abs_wfilename = NULL; |
| #endif |
| |
| /* Look in list of already loaded domains whether it is already |
| available. */ |
| lastp = l10nfile_list; |
| for (retval = *l10nfile_list; retval != NULL; retval = retval->next) |
| if (retval->filename != NULL |
| #if defined _WIN32 && !defined __CYGWIN__ |
| || retval->wfilename != NULL |
| #endif |
| ) |
| { |
| int compare = |
| #if defined _WIN32 && !defined __CYGWIN__ |
| abs_wfilename != NULL |
| ? retval->wfilename != NULL && wcscmp (retval->wfilename, abs_wfilename) |
| : retval->filename != NULL && strcmp (retval->filename, abs_filename); |
| #else |
| strcmp (retval->filename, abs_filename); |
| #endif |
| if (compare == 0) |
| /* We found it! */ |
| break; |
| if (compare < 0) |
| { |
| /* It's not in the list. */ |
| retval = NULL; |
| break; |
| } |
| |
| lastp = &retval->next; |
| } |
| |
| if (retval != NULL || do_allocate == 0) |
| { |
| free (abs_filename); |
| #if defined _WIN32 && !defined __CYGWIN__ |
| free (abs_wfilename); |
| #endif |
| return retval; |
| } |
| |
| #ifdef _LIBC |
| dirlist_count = (dirlist_len > 0 ? __argz_count (dirlist, dirlist_len) : 1); |
| #else |
| dirlist_count = 1; |
| #endif |
| |
| /* Allocate a new loaded_l10nfile. */ |
| retval = |
| (struct loaded_l10nfile *) |
| malloc (sizeof (*retval) |
| + (((dirlist_count << pop (mask)) + (dirlist_count > 1 ? 1 : 0)) |
| * sizeof (struct loaded_l10nfile *))); |
| if (retval == NULL) |
| { |
| free (abs_filename); |
| #if defined _WIN32 && !defined __CYGWIN__ |
| free (abs_wfilename); |
| #endif |
| return NULL; |
| } |
| |
| retval->filename = abs_filename; |
| #if defined _WIN32 && !defined __CYGWIN__ |
| retval->wfilename = abs_wfilename; |
| #endif |
| |
| /* We set retval->data to NULL here; it is filled in later. |
| Setting retval->decided to 1 here means that retval does not |
| correspond to a real file (dirlist_count > 1) or is not worth |
| looking up (if an unnormalized codeset was specified). */ |
| retval->decided = (dirlist_count > 1 |
| || ((mask & XPG_CODESET) != 0 |
| && (mask & XPG_NORM_CODESET) != 0)); |
| retval->data = NULL; |
| |
| retval->next = *lastp; |
| *lastp = retval; |
| |
| entries = 0; |
| /* Recurse to fill the inheritance list of RETVAL. |
| If the DIRLIST is a real list (i.e. DIRLIST_COUNT > 1), the RETVAL |
| entry does not correspond to a real file; retval->filename contains |
| colons. In this case we loop across all elements of DIRLIST and |
| across all bit patterns dominated by MASK. |
| If the DIRLIST is a single directory or entirely redundant (i.e. |
| DIRLIST_COUNT == 1), we loop across all bit patterns dominated by |
| MASK, excluding MASK itself. |
| In either case, we loop down from MASK to 0. This has the effect |
| that the extra bits in the locale name are dropped in this order: |
| first the modifier, then the territory, then the codeset, then the |
| normalized_codeset. */ |
| for (cnt = dirlist_count > 1 ? mask : mask - 1; cnt >= 0; --cnt) |
| if ((cnt & ~mask) == 0 |
| && !((cnt & XPG_CODESET) != 0 && (cnt & XPG_NORM_CODESET) != 0)) |
| { |
| #ifdef _LIBC |
| if (dirlist_count > 1) |
| { |
| /* Iterate over all elements of the DIRLIST. */ |
| char *dir = NULL; |
| |
| while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir)) |
| != NULL) |
| retval->successor[entries++] |
| = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, |
| cnt, language, territory, codeset, |
| normalized_codeset, modifier, filename, |
| 1); |
| } |
| else |
| #endif |
| retval->successor[entries++] |
| = _nl_make_l10nflist (l10nfile_list, |
| dirlist, dirlist_len, |
| #if defined _WIN32 && !defined __CYGWIN__ |
| wdirlist, wdirlist_len, |
| #endif |
| cnt, language, territory, codeset, |
| normalized_codeset, modifier, filename, 1); |
| } |
| retval->successor[entries] = NULL; |
| |
| return retval; |
| } |
| |
| /* Normalize codeset name. There is no standard for the codeset |
| names. Normalization allows the user to use any of the common |
| names. The return value is dynamically allocated and has to be |
| freed by the caller. */ |
| const char * |
| _nl_normalize_codeset (const char *codeset, size_t name_len) |
| { |
| size_t len = 0; |
| int only_digit = 1; |
| char *retval; |
| char *wp; |
| size_t cnt; |
| |
| for (cnt = 0; cnt < name_len; ++cnt) |
| if (isalnum ((unsigned char) codeset[cnt])) |
| { |
| ++len; |
| |
| if (isalpha ((unsigned char) codeset[cnt])) |
| only_digit = 0; |
| } |
| |
| retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1); |
| |
| if (retval != NULL) |
| { |
| if (only_digit) |
| wp = stpcpy (retval, "iso"); |
| else |
| wp = retval; |
| |
| for (cnt = 0; cnt < name_len; ++cnt) |
| if (isalpha ((unsigned char) codeset[cnt])) |
| *wp++ = tolower ((unsigned char) codeset[cnt]); |
| else if (isdigit ((unsigned char) codeset[cnt])) |
| *wp++ = codeset[cnt]; |
| |
| *wp = '\0'; |
| } |
| |
| return (const char *) 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 (char *dest, const char *src) |
| { |
| while ((*dest++ = *src++) != '\0') |
| /* Do nothing. */ ; |
| return dest - 1; |
| } |
| #endif |