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
|
/*
* Copyright (c) 2011 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 "baselocl.h"
#include <string.h>
static void HEIM_CALLCONV
data_dealloc(void *ptr)
{
heim_data_t d = ptr;
heim_octet_string *os = (heim_octet_string *)d;
heim_data_free_f_t *deallocp;
heim_data_free_f_t dealloc;
if (os->data == NULL)
return;
/* Possible string ref */
deallocp = _heim_get_isaextra(os, 0);
dealloc = *deallocp;
if (dealloc != NULL)
dealloc(os->data);
}
static int
data_cmp(void *a, void *b)
{
heim_octet_string *osa = a, *osb = b;
if (osa->length != osb->length)
return osa->length - osb->length;
return memcmp(osa->data, osb->data, osa->length);
}
static uintptr_t
data_hash(void *ptr)
{
heim_octet_string *os = ptr;
const unsigned char *s = os->data;
if (os->length < 4)
return os->length;
return ((unsigned long)s[os->length - 1] << 24)
| (s[os->length - 2] << 16) | (s[1] << 8) | s[0];
}
struct heim_type_data _heim_data_object = {
HEIM_TID_DATA,
"data-object",
NULL,
data_dealloc,
NULL,
data_cmp,
data_hash,
NULL
};
/**
* Create a data object
*
* @param string the string to create, must be an utf8 string
*
* @return string object
*/
heim_data_t
heim_data_create(const void *data, size_t length)
{
heim_octet_string *os;
os = _heim_alloc_object(&_heim_data_object, sizeof(*os) + length);
if (os) {
os->data = (uint8_t *)os + sizeof(*os);
os->length = length;
memcpy(os->data, data, length);
}
return (heim_data_t)os;
}
heim_data_t
heim_data_ref_create(const void *data, size_t length,
heim_data_free_f_t dealloc)
{
heim_octet_string *os;
heim_data_free_f_t *deallocp;
os = _heim_alloc_object(&_heim_data_object, sizeof(*os) + length);
if (os) {
os->data = (void *)data;
os->length = length;
deallocp = _heim_get_isaextra(os, 0);
*deallocp = dealloc;
}
return (heim_data_t)os;
}
/**
* Return the type ID of data objects
*
* @return type id of data objects
*/
heim_tid_t
heim_data_get_type_id(void)
{
return HEIM_TID_DATA;
}
/**
* Get the data value of the content.
*
* @param data the data object to get the value from
*
* @return a heim_octet_string
*/
const heim_octet_string *
heim_data_get_data(heim_data_t data)
{
/* Note that this works for data and data_ref objects */
return (const heim_octet_string *)data;
}
const void *
heim_data_get_ptr(heim_data_t data)
{
/* Note that this works for data and data_ref objects */
return ((const heim_octet_string *)data)->data;
}
size_t heim_data_get_length(heim_data_t data)
{
/* Note that this works for data and data_ref objects */
return ((const heim_octet_string *)data)->length;
}
|
