newlib/libc/locale/lmessages.c

   1 /*
   2  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28
  29 #include <stddef.h>
  30 #include "setlocale.h"
  31
  32 #define LCMESSAGES_SIZE_FULL (sizeof(struct lc_messages_T) / sizeof(char *))
  33 #define LCMESSAGES_SIZE_MIN \
  34                 (offsetof(struct lc_messages_T, yesstr) / sizeof(char *))
  35
  36 #ifndef __CYGWIN__
  37 static char empty[] = "";
  38 #endif
  39
  40 const struct lc_messages_T _C_messages_locale = {
  41         "^[yY]" ,       /* yesexpr */
  42         "^[nN]" ,       /* noexpr */
  43         "yes" ,         /* yesstr */
  44         "no"            /* nostr */
  45 #ifdef __HAVE_LOCALE_INFO_EXTENDED__
  46         , "ASCII" ,     /* codeset */
  47         L"^[yY]" ,      /* wyesexpr */
  48         L"^[nN]" ,      /* wnoexpr */
  49         L"yes" ,        /* wyesstr */
  50         L"no"           /* wnostr */
  51 #endif
  52 };
  53
  54 #ifndef __CYGWIN__
  55 static struct lc_messages_T _messages_locale;
  56 static int      _messages_using_locale;
  57 static char     *_messages_locale_buf;
  58 #endif
  59
  60 int
  61 __messages_load_locale (struct __locale_t *locale, const char *name,
  62                         void *f_wctomb, const char *charset)
  63 {
  64   int ret;
  65   struct lc_messages_T me;
  66   char *bufp = NULL;
  67
  68 #ifdef __CYGWIN__
  69   extern int __set_lc_messages_from_win (const char *,
  70                                          const struct lc_messages_T *,
  71                                          struct lc_messages_T *, char **,
  72                                          void *, const char *);
  73
  74   ret = __set_lc_messages_from_win (name, &_C_messages_locale, &me, &bufp,
  75                                     f_wctomb, charset);
  76   /* ret == -1: error, ret == 0: C/POSIX, ret > 0: valid */
  77   if (ret >= 0)
  78     {
  79       struct lc_messages_T *mep = NULL;
  80
  81       if (ret > 0)
  82         {
  83           mep = (struct lc_messages_T *) calloc (1, sizeof *mep);
  84           if (!mep)
  85             {
  86               free (bufp);
  87               return -1;
  88             }
  89           *mep = me;
  90         }
  91       struct __lc_cats tmp = locale->lc_cat[LC_MESSAGES];
  92       locale->lc_cat[LC_MESSAGES].ptr = ret == 0 ? &_C_messages_locale : mep;
  93       locale->lc_cat[LC_MESSAGES].buf = bufp;
  94       /* If buf is not NULL, both pointers have been alloc'ed */
  95       if (tmp.buf)
  96         {
  97           free ((void *) tmp.ptr);
  98           free (tmp.buf);
  99         }
 100       ret = 0;
 101     }
 102 #else
 103   /* TODO */
 104 #endif
 105   return ret;
 106 }