1 /*
2 * Copyright (c) 1997 - 2000 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 "kadm5_locl.h"
35
36 RCSID("$Id$");
37
38 /*
39 * free all the memory used by (len, keys)
40 */
41
42 void
_kadm5_free_keys(krb5_context context,int len,Key * keys)43 _kadm5_free_keys (krb5_context context,
44 int len, Key *keys)
45 {
46 hdb_free_keys(context, len, keys);
47 }
48
49 /*
50 * null-ify `len', `keys'
51 */
52
53 void
_kadm5_init_keys(Key * keys,int len)54 _kadm5_init_keys (Key *keys, int len)
55 {
56 int i;
57
58 for (i = 0; i < len; ++i) {
59 keys[i].mkvno = NULL;
60 keys[i].salt = NULL;
61 keys[i].key.keyvalue.length = 0;
62 keys[i].key.keyvalue.data = NULL;
63 }
64 }
65
66 /*
67 * return 1 if any key in `keys1, len1' exists in `keys2, len2'
68 */
69
70 int
_kadm5_exists_keys(Key * keys1,int len1,Key * keys2,int len2)71 _kadm5_exists_keys(Key *keys1, int len1, Key *keys2, int len2)
72 {
73 int i, j;
74
75 for (i = 0; i < len1; ++i) {
76 for (j = 0; j < len2; j++) {
77 if ((keys1[i].salt != NULL && keys2[j].salt == NULL)
78 || (keys1[i].salt == NULL && keys2[j].salt != NULL))
79 continue;
80
81 if (keys1[i].salt != NULL) {
82 if (keys1[i].salt->type != keys2[j].salt->type)
83 continue;
84 if (keys1[i].salt->salt.length != keys2[j].salt->salt.length)
85 continue;
86 if (memcmp (keys1[i].salt->salt.data, keys2[j].salt->salt.data,
87 keys1[i].salt->salt.length) != 0)
88 continue;
89 }
90 if (keys1[i].key.keytype != keys2[j].key.keytype)
91 continue;
92 if (keys1[i].key.keyvalue.length != keys2[j].key.keyvalue.length)
93 continue;
94 if (memcmp (keys1[i].key.keyvalue.data, keys2[j].key.keyvalue.data,
95 keys1[i].key.keyvalue.length) != 0)
96 continue;
97
98 return 1;
99 }
100 }
101 return 0;
102 }
103