xref: /freebsd-src/crypto/heimdal/lib/wind/combining.c (revision 6a068746777241722b2b32c5d0bc443a2a64d80b)
1*ae771770SStanislav Sedov /*
2*ae771770SStanislav Sedov  * Copyright (c) 2008 Kungliga Tekniska Högskolan
3*ae771770SStanislav Sedov  * (Royal Institute of Technology, Stockholm, Sweden).
4*ae771770SStanislav Sedov  * All rights reserved.
5*ae771770SStanislav Sedov  *
6*ae771770SStanislav Sedov  * Redistribution and use in source and binary forms, with or without
7*ae771770SStanislav Sedov  * modification, are permitted provided that the following conditions
8*ae771770SStanislav Sedov  * are met:
9*ae771770SStanislav Sedov  *
10*ae771770SStanislav Sedov  * 1. Redistributions of source code must retain the above copyright
11*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer.
12*ae771770SStanislav Sedov  *
13*ae771770SStanislav Sedov  * 2. Redistributions in binary form must reproduce the above copyright
14*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer in the
15*ae771770SStanislav Sedov  *    documentation and/or other materials provided with the distribution.
16*ae771770SStanislav Sedov  *
17*ae771770SStanislav Sedov  * 3. Neither the name of the Institute nor the names of its contributors
18*ae771770SStanislav Sedov  *    may be used to endorse or promote products derived from this software
19*ae771770SStanislav Sedov  *    without specific prior written permission.
20*ae771770SStanislav Sedov  *
21*ae771770SStanislav Sedov  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22*ae771770SStanislav Sedov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*ae771770SStanislav Sedov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*ae771770SStanislav Sedov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25*ae771770SStanislav Sedov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*ae771770SStanislav Sedov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*ae771770SStanislav Sedov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*ae771770SStanislav Sedov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*ae771770SStanislav Sedov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*ae771770SStanislav Sedov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*ae771770SStanislav Sedov  * SUCH DAMAGE.
32*ae771770SStanislav Sedov  */
33*ae771770SStanislav Sedov 
34*ae771770SStanislav Sedov #include "windlocl.h"
35*ae771770SStanislav Sedov 
36*ae771770SStanislav Sedov #include <stdlib.h>
37*ae771770SStanislav Sedov 
38*ae771770SStanislav Sedov #include "combining_table.h"
39*ae771770SStanislav Sedov 
40*ae771770SStanislav Sedov static int
translation_cmp(const void * key,const void * data)41*ae771770SStanislav Sedov translation_cmp(const void *key, const void *data)
42*ae771770SStanislav Sedov {
43*ae771770SStanislav Sedov     const struct translation *t1 = (const struct translation *)key;
44*ae771770SStanislav Sedov     const struct translation *t2 = (const struct translation *)data;
45*ae771770SStanislav Sedov 
46*ae771770SStanislav Sedov     return t1->key - t2->key;
47*ae771770SStanislav Sedov }
48*ae771770SStanislav Sedov 
49*ae771770SStanislav Sedov int
_wind_combining_class(uint32_t code_point)50*ae771770SStanislav Sedov _wind_combining_class(uint32_t code_point)
51*ae771770SStanislav Sedov {
52*ae771770SStanislav Sedov     struct translation ts = {code_point};
53*ae771770SStanislav Sedov     void *s = bsearch(&ts, _wind_combining_table, _wind_combining_table_size,
54*ae771770SStanislav Sedov 		      sizeof(_wind_combining_table[0]),
55*ae771770SStanislav Sedov 		      translation_cmp);
56*ae771770SStanislav Sedov     if (s != NULL) {
57*ae771770SStanislav Sedov 	const struct translation *t = (const struct translation *)s;
58*ae771770SStanislav Sedov 	return t->combining_class;
59*ae771770SStanislav Sedov     } else {
60*ae771770SStanislav Sedov 	return 0;
61*ae771770SStanislav Sedov     }
62*ae771770SStanislav Sedov }
63