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
|
/* ASN.1 primitive encoders */
#include "asn1_encode.h"
#include "asn1_make.h"
asn1_error_code asn1_encode_integer(DECLARG(asn1buf *, buf),
DECLARG(const long , val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const long , val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length = 0, partlen;
long valcopy;
int digit;
valcopy = val;
do {
digit = valcopy&0xFF;
retval = asn1buf_insert_octet(buf,digit);
if(retval) return retval;
length++;
valcopy = valcopy >> 8;
} while (valcopy != 0 && valcopy != ~0);
if((val > 0) && ((digit&0x80) == 0x80)) { /* make sure the high bit is */
retval = asn1buf_insert_octet(buf,0); /* of the proper signed-ness */
if(retval) return retval;
length++;
}else if((val < 0) && ((digit&0x80) != 0x80)){
retval = asn1buf_insert_octet(buf,0xFF);
if(retval) return retval;
length++;
}
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_INTEGER,length, &partlen);
if(retval) return retval;
length += partlen;
*retlen = length;
return 0;
}
asn1_error_code asn1_encode_unsigned_integer(DECLARG(asn1buf *, buf),
DECLARG(const unsigned long , val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const unsigned long , val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length = 0, partlen;
unsigned long valcopy;
int digit;
valcopy = val;
do {
digit = valcopy&0xFF;
retval = asn1buf_insert_octet(buf,digit);
if(retval) return retval;
length++;
valcopy = valcopy >> 8;
} while (valcopy != 0 && valcopy != ~0);
if(digit&0x80) { /* make sure the high bit is */
retval = asn1buf_insert_octet(buf,0); /* of the proper signed-ness */
if(retval) return retval;
length++;
}
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_INTEGER,length, &partlen);
if(retval) return retval;
length += partlen;
*retlen = length;
return 0;
}
asn1_error_code asn1_encode_octetstring(DECLARG(asn1buf *, buf),
DECLARG(const int , len),
DECLARG(const asn1_octet *, val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const int , len)
OLDDECLARG(const asn1_octet *, val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length;
retval = asn1buf_insert_octetstring(buf,len,val);
if(retval) return retval;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_OCTETSTRING,len,&length);
if(retval) return retval;
*retlen = len + length;
return 0;
}
asn1_error_code asn1_encode_charstring(DECLARG(asn1buf *, buf),
DECLARG(const int , len),
DECLARG(const char *, val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const int , len)
OLDDECLARG(const char *, val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length;
retval = asn1buf_insert_charstring(buf,len,val);
if(retval) return retval;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_OCTETSTRING,len,&length);
if(retval) return retval;
*retlen = len + length;
return 0;
}
asn1_encode_null(DECLARG(asn1buf *, buf),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
retval = asn1buf_insert_octet(buf,0x00);
if(retval) return retval;
retval = asn1buf_insert_octet(buf,0x05);
if(retval) return retval;
*retlen = 2;
return 0;
}
asn1_error_code asn1_encode_printablestring(DECLARG(asn1buf *, buf),
DECLARG(const int , len),
DECLARG(const char *, val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const int , len)
OLDDECLARG(const char *, val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length;
retval = asn1buf_insert_charstring(buf,len,val);
if(retval) return retval;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_PRINTABLESTRING,len, &length);
if(retval) return retval;
*retlen = len + length;
return 0;
}
asn1_error_code asn1_encode_ia5string(DECLARG(asn1buf *, buf),
DECLARG(const int , len),
DECLARG(const char *, val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const int , len)
OLDDECLARG(const char *, val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length;
retval = asn1buf_insert_charstring(buf,len,val);
if(retval) return retval;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_IA5STRING,len, &length);
if(retval) return retval;
*retlen = len + length;
return 0;
}
asn1_error_code asn1_encode_generaltime(DECLARG(asn1buf *, buf),
DECLARG(const time_t , val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const time_t , val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
struct tm *gtime = gmtime(&val);
char s[16];
int length, sum=0;
/* Time encoding: YYYYMMDDhhmmssZ */
sprintf(s, "%04d%02d%02d%02d%02d%02dZ",
1900+gtime->tm_year, gtime->tm_mon+1, gtime->tm_mday,
gtime->tm_hour, gtime->tm_min, gtime->tm_sec);
retval = asn1buf_insert_charstring(buf,15,s);
if(retval) return retval;
sum = 15;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_GENERALTIME,sum,&length);
if(retval) return retval;
sum += length;
*retlen = sum;
return 0;
}
asn1_error_code asn1_encode_generalstring(DECLARG(asn1buf *, buf),
DECLARG(const int , len),
DECLARG(const char *, val),
DECLARG(int *, retlen))
OLDDECLARG(asn1buf *, buf)
OLDDECLARG(const int , len)
OLDDECLARG(const char *, val)
OLDDECLARG(int *, retlen)
{
asn1_error_code retval;
int length;
retval = asn1buf_insert_charstring(buf,len,val);
if(retval) return retval;
retval = asn1_make_tag(buf,UNIVERSAL,PRIMITIVE,ASN1_GENERALSTRING,len,
&length);
if(retval) return retval;
*retlen = len + length;
return 0;
}
|
