root/source4/heimdal/lib/wind/errorlist.c

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DEFINITIONS

This source file includes following definitions.
  1. error_entry_cmp
  2. _wind_stringprep_error
  3. _wind_stringprep_prohibited

   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 #include "windlocl.h"
  35 
  36 #include <stdlib.h>
  37 
  38 #include "errorlist_table.h"
  39 
  40 static int
  41 error_entry_cmp(const void *a, const void *b)
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  42 {
  43     const struct error_entry *ea = (const struct error_entry*)a;
  44     const struct error_entry *eb = (const struct error_entry*)b;
  45 
  46     if (ea->start >= eb->start && ea->start < eb->start + eb->len)
  47         return 0;
  48     return ea->start - eb->start;
  49 }
  50 
  51 int
  52 _wind_stringprep_error(uint32_t cp, wind_profile_flags flags)
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  53 {
  54     struct error_entry ee = {cp};
  55     const struct error_entry *s;
  56 
  57     s = (const struct error_entry *)
  58         bsearch(&ee, _wind_errorlist_table,
  59                 _wind_errorlist_table_size,
  60                 sizeof(_wind_errorlist_table[0]),
  61                 error_entry_cmp);
  62     if (s == NULL)
  63         return 0;
  64     return (s->flags & flags);
  65 }
  66 
  67 int
  68 _wind_stringprep_prohibited(const uint32_t *in, size_t in_len,
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  69                             wind_profile_flags flags)
  70 {
  71     unsigned i;
  72 
  73     for (i = 0; i < in_len; ++i)
  74         if (_wind_stringprep_error(in[i], flags))
  75             return 1;
  76     return 0;
  77 }

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