1 /*	$NetBSD: errorlist.c,v 1.1.1.1 2011/04/13 18:15:58 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 2004 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of the Institute nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include "windlocl.h"
37 
38 #include <stdlib.h>
39 
40 #include "errorlist_table.h"
41 
42 static int
43 error_entry_cmp(const void *a, const void *b)
44 {
45     const struct error_entry *ea = (const struct error_entry*)a;
46     const struct error_entry *eb = (const struct error_entry*)b;
47 
48     if (ea->start >= eb->start && ea->start < eb->start + eb->len)
49 	return 0;
50     return ea->start - eb->start;
51 }
52 
53 int
54 _wind_stringprep_error(const uint32_t cp, wind_profile_flags flags)
55 {
56     struct error_entry ee = {cp};
57     const struct error_entry *s;
58 
59     s = (const struct error_entry *)
60 	bsearch(&ee, _wind_errorlist_table,
61 		_wind_errorlist_table_size,
62 		sizeof(_wind_errorlist_table[0]),
63 		error_entry_cmp);
64     if (s == NULL)
65 	return 0;
66     return (s->flags & flags);
67 }
68 
69 int
70 _wind_stringprep_prohibited(const uint32_t *in, size_t in_len,
71 			    wind_profile_flags flags)
72 {
73     unsigned i;
74 
75     for (i = 0; i < in_len; ++i)
76 	if (_wind_stringprep_error(in[i], flags))
77 	    return 1;
78     return 0;
79 }
80