1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/*
* Copyright (c) 1997-2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "der_locl.h"
RCSID("$Id$");
size_t
_heim_len_unsigned (unsigned val)
{
size_t ret = 0;
int last_val_gt_128;
do {
++ret;
last_val_gt_128 = (val >= 128);
val /= 256;
} while (val);
if(last_val_gt_128)
ret++;
return ret;
}
size_t
_heim_len_int (int val)
{
unsigned char q;
size_t ret = 0;
if (val >= 0) {
do {
q = val % 256;
ret++;
val /= 256;
} while(val);
if(q >= 128)
ret++;
} else {
val = ~val;
do {
q = ~(val % 256);
ret++;
val /= 256;
} while(val);
if(q < 128)
ret++;
}
return ret;
}
static size_t
len_oid (const heim_oid *oid)
{
size_t ret = 1;
int n;
for (n = 2; n < oid->length; ++n) {
unsigned u = oid->components[n];
do {
++ret;
u /= 128;
} while(u > 0);
}
return ret;
}
size_t
der_length_len (size_t len)
{
if (len < 128)
return 1;
else {
int ret = 0;
do {
++ret;
len /= 256;
} while (len);
return ret + 1;
}
}
size_t
der_length_integer (const int *data)
{
return _heim_len_int (*data);
}
size_t
der_length_unsigned (const unsigned *data)
{
return _heim_len_unsigned(*data);
}
size_t
der_length_enumerated (const unsigned *data)
{
return _heim_len_int (*data);
}
size_t
der_length_general_string (const heim_general_string *data)
{
return strlen(*data);
}
size_t
der_length_utf8string (const heim_utf8_string *data)
{
return strlen(*data);
}
size_t
der_length_printable_string (const heim_printable_string *data)
{
return strlen(*data);
}
size_t
der_length_ia5_string (const heim_ia5_string *data)
{
return strlen(*data);
}
size_t
der_length_bmp_string (const heim_bmp_string *data)
{
return data->length * 2;
}
size_t
der_length_universal_string (const heim_universal_string *data)
{
return data->length * 4;
}
size_t
der_length_visible_string (const heim_visible_string *data)
{
return strlen(*data);
}
size_t
der_length_octet_string (const heim_octet_string *k)
{
return k->length;
}
size_t
der_length_heim_integer (const heim_integer *k)
{
if (k->length == 0)
return 1;
if (k->negative)
return k->length + (((~(((unsigned char *)k->data)[0])) & 0x80) ? 0 : 1);
else
return k->length + ((((unsigned char *)k->data)[0] & 0x80) ? 1 : 0);
}
size_t
der_length_oid (const heim_oid *k)
{
return len_oid (k);
}
size_t
der_length_generalized_time (const time_t *t)
{
heim_octet_string k;
size_t ret;
_heim_time2generalizedtime (*t, &k, 1);
ret = k.length;
free(k.data);
return ret;
}
size_t
der_length_utctime (const time_t *t)
{
heim_octet_string k;
size_t ret;
_heim_time2generalizedtime (*t, &k, 0);
ret = k.length;
free(k.data);
return ret;
}
size_t
der_length_boolean (const int *k)
{
return 1;
}
size_t
der_length_bit_string (const heim_bit_string *k)
{
return (k->length + 7) / 8 + 1;
}
|
