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