xref: /minix3/crypto/external/bsd/heimdal/dist/lib/wind/map.c (revision ebfedea0ce5bbe81e252ddf32d732e40fb633fae)
1*ebfedea0SLionel Sambuc /*	$NetBSD: map.c,v 1.1.1.1 2011/04/13 18:15:58 elric Exp $	*/
2*ebfedea0SLionel Sambuc 
3*ebfedea0SLionel Sambuc /*
4*ebfedea0SLionel Sambuc  * Copyright (c) 2004 Kungliga Tekniska Högskolan
5*ebfedea0SLionel Sambuc  * (Royal Institute of Technology, Stockholm, Sweden).
6*ebfedea0SLionel Sambuc  * All rights reserved.
7*ebfedea0SLionel Sambuc  *
8*ebfedea0SLionel Sambuc  * Redistribution and use in source and binary forms, with or without
9*ebfedea0SLionel Sambuc  * modification, are permitted provided that the following conditions
10*ebfedea0SLionel Sambuc  * are met:
11*ebfedea0SLionel Sambuc  *
12*ebfedea0SLionel Sambuc  * 1. Redistributions of source code must retain the above copyright
13*ebfedea0SLionel Sambuc  *    notice, this list of conditions and the following disclaimer.
14*ebfedea0SLionel Sambuc  *
15*ebfedea0SLionel Sambuc  * 2. Redistributions in binary form must reproduce the above copyright
16*ebfedea0SLionel Sambuc  *    notice, this list of conditions and the following disclaimer in the
17*ebfedea0SLionel Sambuc  *    documentation and/or other materials provided with the distribution.
18*ebfedea0SLionel Sambuc  *
19*ebfedea0SLionel Sambuc  * 3. Neither the name of the Institute nor the names of its contributors
20*ebfedea0SLionel Sambuc  *    may be used to endorse or promote products derived from this software
21*ebfedea0SLionel Sambuc  *    without specific prior written permission.
22*ebfedea0SLionel Sambuc  *
23*ebfedea0SLionel Sambuc  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24*ebfedea0SLionel Sambuc  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25*ebfedea0SLionel Sambuc  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26*ebfedea0SLionel Sambuc  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27*ebfedea0SLionel Sambuc  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28*ebfedea0SLionel Sambuc  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29*ebfedea0SLionel Sambuc  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30*ebfedea0SLionel Sambuc  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31*ebfedea0SLionel Sambuc  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32*ebfedea0SLionel Sambuc  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33*ebfedea0SLionel Sambuc  * SUCH DAMAGE.
34*ebfedea0SLionel Sambuc  */
35*ebfedea0SLionel Sambuc 
36*ebfedea0SLionel Sambuc #ifdef HAVE_CONFIG_H
37*ebfedea0SLionel Sambuc #include <config.h>
38*ebfedea0SLionel Sambuc #endif
39*ebfedea0SLionel Sambuc #include "windlocl.h"
40*ebfedea0SLionel Sambuc 
41*ebfedea0SLionel Sambuc #include <stdlib.h>
42*ebfedea0SLionel Sambuc 
43*ebfedea0SLionel Sambuc #include "map_table.h"
44*ebfedea0SLionel Sambuc 
45*ebfedea0SLionel Sambuc static int
translation_cmp(const void * key,const void * data)46*ebfedea0SLionel Sambuc translation_cmp(const void *key, const void *data)
47*ebfedea0SLionel Sambuc {
48*ebfedea0SLionel Sambuc     const struct translation *t1 = (const struct translation *)key;
49*ebfedea0SLionel Sambuc     const struct translation *t2 = (const struct translation *)data;
50*ebfedea0SLionel Sambuc 
51*ebfedea0SLionel Sambuc     return t1->key - t2->key;
52*ebfedea0SLionel Sambuc }
53*ebfedea0SLionel Sambuc 
54*ebfedea0SLionel Sambuc int
_wind_stringprep_map(const uint32_t * in,size_t in_len,uint32_t * out,size_t * out_len,wind_profile_flags flags)55*ebfedea0SLionel Sambuc _wind_stringprep_map(const uint32_t *in, size_t in_len,
56*ebfedea0SLionel Sambuc 		     uint32_t *out, size_t *out_len,
57*ebfedea0SLionel Sambuc 		     wind_profile_flags flags)
58*ebfedea0SLionel Sambuc {
59*ebfedea0SLionel Sambuc     unsigned i;
60*ebfedea0SLionel Sambuc     unsigned o = 0;
61*ebfedea0SLionel Sambuc 
62*ebfedea0SLionel Sambuc     for (i = 0; i < in_len; ++i) {
63*ebfedea0SLionel Sambuc 	struct translation ts = {in[i]};
64*ebfedea0SLionel Sambuc 	const struct translation *s;
65*ebfedea0SLionel Sambuc 
66*ebfedea0SLionel Sambuc 	s = (const struct translation *)
67*ebfedea0SLionel Sambuc 	    bsearch(&ts, _wind_map_table, _wind_map_table_size,
68*ebfedea0SLionel Sambuc 		    sizeof(_wind_map_table[0]),
69*ebfedea0SLionel Sambuc 		    translation_cmp);
70*ebfedea0SLionel Sambuc 	if (s != NULL && (s->flags & flags)) {
71*ebfedea0SLionel Sambuc 	    unsigned j;
72*ebfedea0SLionel Sambuc 
73*ebfedea0SLionel Sambuc 	    for (j = 0; j < s->val_len; ++j) {
74*ebfedea0SLionel Sambuc 		if (o >= *out_len)
75*ebfedea0SLionel Sambuc 		    return WIND_ERR_OVERRUN;
76*ebfedea0SLionel Sambuc 		out[o++] = _wind_map_table_val[s->val_offset + j];
77*ebfedea0SLionel Sambuc 	    }
78*ebfedea0SLionel Sambuc 	} else {
79*ebfedea0SLionel Sambuc 	    if (o >= *out_len)
80*ebfedea0SLionel Sambuc 		return WIND_ERR_OVERRUN;
81*ebfedea0SLionel Sambuc 	    out[o++] = in[i];
82*ebfedea0SLionel Sambuc 
83*ebfedea0SLionel Sambuc 	}
84*ebfedea0SLionel Sambuc     }
85*ebfedea0SLionel Sambuc     *out_len = o;
86*ebfedea0SLionel Sambuc     return 0;
87*ebfedea0SLionel Sambuc }
88