release/src/router/libiconv/lib/iconv_open2.h

   1 /*
   2  * Copyright (C) 1999-2009 Free Software Foundation, Inc.
   3  * This file is part of the GNU LIBICONV Library.
   4  *
   5  * The GNU LIBICONV Library is free software; you can redistribute it
   6  * and/or modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * The GNU LIBICONV Library is distributed in the hope that it will be
  11  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
  17  * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
  18  * Fifth Floor, Boston, MA 02110-1301, USA.
  19  */
  20
  21 /* Part 2 of iconv_open.
  22    Input:
  23      struct conv_struct * cd;
  24      unsigned int from_index;
  25      int from_wchar;
  26      unsigned int to_index;
  27      int to_wchar;
  28      int transliterate;
  29      int discard_ilseq;
  30    Output: none.
  31    Side effects: Fills cd.
  32  */
  33
  34   cd->iindex = from_index;
  35   cd->ifuncs = all_encodings[from_index].ifuncs;
  36   cd->oindex = to_index;
  37   cd->ofuncs = all_encodings[to_index].ofuncs;
  38   cd->oflags = all_encodings[to_index].oflags;
  39   /* Initialize the loop functions. */
  40 #if HAVE_MBRTOWC
  41   if (to_wchar) {
  42 #if HAVE_WCRTOMB
  43     if (from_wchar) {
  44       cd->lfuncs.loop_convert = wchar_id_loop_convert;
  45       cd->lfuncs.loop_reset = wchar_id_loop_reset;
  46     } else
  47 #endif
  48     {
  49       cd->lfuncs.loop_convert = wchar_to_loop_convert;
  50       cd->lfuncs.loop_reset = wchar_to_loop_reset;
  51     }
  52   } else
  53 #endif
  54   {
  55 #if HAVE_WCRTOMB
  56     if (from_wchar) {
  57       cd->lfuncs.loop_convert = wchar_from_loop_convert;
  58       cd->lfuncs.loop_reset = wchar_from_loop_reset;
  59     } else
  60 #endif
  61     {
  62       cd->lfuncs.loop_convert = unicode_loop_convert;
  63       cd->lfuncs.loop_reset = unicode_loop_reset;
  64     }
  65   }
  66   /* Initialize the states. */
  67   memset(&cd->istate,'\0',sizeof(state_t));
  68   memset(&cd->ostate,'\0',sizeof(state_t));
  69   /* Initialize the operation flags. */
  70   cd->transliterate = transliterate;
  71   cd->discard_ilseq = discard_ilseq;
  72   #ifndef LIBICONV_PLUG
  73   cd->fallbacks.mb_to_uc_fallback = NULL;
  74   cd->fallbacks.uc_to_mb_fallback = NULL;
  75   cd->fallbacks.mb_to_wc_fallback = NULL;
  76   cd->fallbacks.wc_to_mb_fallback = NULL;
  77   cd->fallbacks.data = NULL;
  78   cd->hooks.uc_hook = NULL;
  79   cd->hooks.wc_hook = NULL;
  80   cd->hooks.data = NULL;
  81   #endif
  82   /* Initialize additional fields. */
  83   if (from_wchar != to_wchar) {
  84     struct wchar_conv_struct * wcd = (struct wchar_conv_struct *) cd;
  85 #if HAVE_WCRTOMB || HAVE_MBRTOWC
  86     memset(&wcd->state,'\0',sizeof(mbstate_t));
  87 #endif
  88   }
  89   /* Done. */