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libiconv 1.16

    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, see <https://www.gnu.org/licenses/>.
   18:  */
   19: 
   20: /* Part 2 of iconv_open.
   21:    Input:
   22:      struct conv_struct * cd;
   23:      unsigned int from_index;
   24:      int from_wchar;
   25:      unsigned int to_index;
   26:      int to_wchar;
   27:      int transliterate;
   28:      int discard_ilseq;
   29:    Output: none.
   30:    Side effects: Fills cd.
   31:  */
   32: 
   33:   cd->iindex = from_index;
   34:   cd->ifuncs = all_encodings[from_index].ifuncs;
   35:   cd->oindex = to_index;
   36:   cd->ofuncs = all_encodings[to_index].ofuncs;
   37:   cd->oflags = all_encodings[to_index].oflags;
   38:   /* Initialize the loop functions. */
   39: #if HAVE_MBRTOWC
   40:   if (to_wchar) {
   41: #if HAVE_WCRTOMB
   42:     if (from_wchar) {
   43:       cd->lfuncs.loop_convert = wchar_id_loop_convert;
   44:       cd->lfuncs.loop_reset = wchar_id_loop_reset;
   45:     } else
   46: #endif
   47:     {
   48:       cd->lfuncs.loop_convert = wchar_to_loop_convert;
   49:       cd->lfuncs.loop_reset = wchar_to_loop_reset;
   50:     }
   51:   } else
   52: #endif
   53:   {
   54: #if HAVE_WCRTOMB
   55:     if (from_wchar) {
   56:       cd->lfuncs.loop_convert = wchar_from_loop_convert;
   57:       cd->lfuncs.loop_reset = wchar_from_loop_reset;
   58:     } else
   59: #endif
   60:     {
   61:       cd->lfuncs.loop_convert = unicode_loop_convert;
   62:       cd->lfuncs.loop_reset = unicode_loop_reset;
   63:     }
   64:   }
   65:   /* Initialize the states. */
   66:   memset(&cd->istate,'\0',sizeof(state_t));
   67:   memset(&cd->ostate,'\0',sizeof(state_t));
   68:   /* Initialize the operation flags. */
   69:   cd->transliterate = transliterate;
   70:   cd->discard_ilseq = discard_ilseq;
   71:   #ifndef LIBICONV_PLUG
   72:   cd->fallbacks.mb_to_uc_fallback = NULL;
   73:   cd->fallbacks.uc_to_mb_fallback = NULL;
   74:   cd->fallbacks.mb_to_wc_fallback = NULL;
   75:   cd->fallbacks.wc_to_mb_fallback = NULL;
   76:   cd->fallbacks.data = NULL;
   77:   cd->hooks.uc_hook = NULL;
   78:   cd->hooks.wc_hook = NULL;
   79:   cd->hooks.data = NULL;
   80:   #endif
   81:   /* Initialize additional fields. */
   82:   if (from_wchar != to_wchar) {
   83:     struct wchar_conv_struct * wcd = (struct wchar_conv_struct *) cd;
   84: #if HAVE_WCRTOMB || HAVE_MBRTOWC
   85:     memset(&wcd->state,'\0',sizeof(mbstate_t));
   86: #endif
   87:   }
   88:   /* Done. */