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
40static int
41error_entry_cmp(const void *a, const void *b)
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
51int
52_wind_stringprep_error(const uint32_t cp, wind_profile_flags flags)
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
67int
68_wind_stringprep_prohibited(const uint32_t *in, size_t in_len,
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}
78