1  /* Table for builtin transformation mapping.
       2     Copyright (C) 1997-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <endian.h>
      20  #include <limits.h>
      21  #include <stdint.h>
      22  #include <string.h>
      23  
      24  #include <gconv_int.h>
      25  
      26  #include <assert.h>
      27  
      28  
      29  static const struct builtin_map
      30  {
      31    const char *name;
      32    __gconv_fct fct;
      33    __gconv_btowc_fct btowc_fct;
      34  
      35    int8_t min_needed_from;
      36    int8_t max_needed_from;
      37    int8_t min_needed_to;
      38    int8_t max_needed_to;
      39  
      40  } map[] =
      41  {
      42  #define BUILTIN_TRANSFORMATION(From, To, Cost, Name, Fct, BtowcFct, \
      43  			       MinF, MaxF, MinT, MaxT) \
      44    {									      \
      45      .name = Name,							      \
      46      .fct = Fct,								      \
      47      .btowc_fct = BtowcFct,						      \
      48  									      \
      49      .min_needed_from = MinF,						      \
      50      .max_needed_from = MaxF,						      \
      51      .min_needed_to = MinT,						      \
      52      .max_needed_to = MaxT						      \
      53    },
      54  #define BUILTIN_ALIAS(From, To)
      55  
      56  #include <gconv_builtin.h>
      57  };
      58  
      59  
      60  void
      61  __gconv_get_builtin_trans (const char *name, struct __gconv_step *step)
      62  {
      63    size_t cnt;
      64  
      65    for (cnt = 0; cnt < sizeof (map) / sizeof (map[0]); ++cnt)
      66      if (strcmp (name, map[cnt].name) == 0)
      67        break;
      68  
      69    assert (cnt < sizeof (map) / sizeof (map[0]));
      70  
      71    step->__fct = map[cnt].fct;
      72    step->__btowc_fct = map[cnt].btowc_fct;
      73    step->__init_fct = NULL;
      74    step->__end_fct = NULL;
      75    step->__shlib_handle = NULL;
      76    step->__modname = NULL;
      77  
      78    step->__min_needed_from = map[cnt].min_needed_from;
      79    step->__max_needed_from = map[cnt].max_needed_from;
      80    step->__min_needed_to = map[cnt].min_needed_to;
      81    step->__max_needed_to = map[cnt].max_needed_to;
      82  
      83    /* None of the builtin converters handles stateful encoding.  */
      84    step->__stateful = 0;
      85  }