Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2004 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute nor the names of its contributors
      18             :  *    may be used to endorse or promote products derived from this software
      19             :  *    without specific prior written permission.
      20             :  *
      21             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      22             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      25             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31             :  * SUCH DAMAGE.
      32             :  */
      33             : 
      34             : #ifdef HAVE_CONFIG_H
      35             : #include <config.h>
      36             : #endif
      37             : #include "windlocl.h"
      38             : 
      39             : #include <stdlib.h>
      40             : 
      41             : #include "map_table.h"
      42             : 
      43             : static int
      44      638650 : translation_cmp(const void *key, const void *data)
      45             : {
      46      638650 :     const struct translation *t1 = (const struct translation *)key;
      47      638650 :     const struct translation *t2 = (const struct translation *)data;
      48             : 
      49      638650 :     return t1->key - t2->key;
      50             : }
      51             : 
      52             : int
      53        3710 : _wind_stringprep_map(const uint32_t *in, size_t in_len,
      54             :                      uint32_t *out, size_t *out_len,
      55             :                      wind_profile_flags flags)
      56             : {
      57           0 :     unsigned i;
      58        3710 :     unsigned o = 0;
      59             : 
      60       64660 :     for (i = 0; i < in_len; ++i) {
      61       60950 :         struct translation ts = {in[i], 0, 0, 0};
      62           0 :         const struct translation *s;
      63             : 
      64           0 :         s = (const struct translation *)
      65       60950 :             bsearch(&ts, _wind_map_table, _wind_map_table_size,
      66             :                     sizeof(_wind_map_table[0]),
      67             :                     translation_cmp);
      68       62540 :         if (s != NULL && (s->flags & flags)) {
      69             :             unsigned j;
      70             : 
      71        3180 :             for (j = 0; j < s->val_len; ++j) {
      72        1590 :                 if (o >= *out_len)
      73           0 :                     return WIND_ERR_OVERRUN;
      74        1590 :                 out[o++] = _wind_map_table_val[s->val_offset + j];
      75             :             }
      76             :         } else {
      77       59360 :             if (o >= *out_len)
      78           0 :                 return WIND_ERR_OVERRUN;
      79       59360 :             out[o++] = in[i];
      80             : 
      81             :         }
      82             :     }
      83        3710 :     *out_len = o;
      84        3710 :     return 0;
      85             : }