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
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "asn1parser.h"
/*
* Construct a new empty reference.
*/
asn1p_ref_t *
asn1p_ref_new(int _lineno) {
asn1p_ref_t *ref;
ref = calloc(1, sizeof *ref);
if(ref) {
ref->_lineno = _lineno;
}
return ref;
}
void
asn1p_ref_free(asn1p_ref_t *ref) {
if(ref) {
if(ref->components) {
int i = ref->comp_count;
while(i--) {
free(ref->components[i].name);
ref->components[i].name = 0;
}
free(ref->components);
ref->components = 0;
}
free(ref);
}
}
static enum asn1p_ref_lex_type_e
asn1p_ref_name2lextype(char *name) {
enum asn1p_ref_lex_type_e lex_type;
int has_lowercase = 0;
if(*name == '&') {
if(name[1] >= 'A' && name[1] <= 'Z') {
lex_type = RLT_AmpUppercase;
} else {
lex_type = RLT_Amplowercase;
}
} else if(*name >= 'A' && *name <= 'Z') {
char *p;
for(p = name; *p; p++) {
if(*p >= 'a' && *p <= 'z') {
has_lowercase = 1;
break;
}
}
if(has_lowercase) {
lex_type = RLT_Uppercase;
} else {
lex_type = RLT_CAPITALS;
}
} else if(*name == '@') {
if(name[1] == '.')
lex_type = RLT_AtDotlowercase;
else
lex_type = RLT_Atlowercase;
} else {
lex_type = RLT_lowercase;
}
return lex_type;
}
int
asn1p_ref_add_component(asn1p_ref_t *ref, char *name, enum asn1p_ref_lex_type_e lex_type) {
if(!ref || !name
|| (int)lex_type < RLT_UNKNOWN || lex_type >= RLT_MAX) {
errno = EINVAL;
return -1;
}
if(ref->comp_count == ref->comp_size) {
int newsize = ref->comp_size?(ref->comp_size<<2):4;
void *p = realloc(ref->components,
newsize * sizeof(ref->components[0]));
if(p) {
ref->components = p;
ref->comp_size = newsize;
} else {
return -1;
}
}
if(lex_type == RLT_UNKNOWN) {
lex_type = asn1p_ref_name2lextype(name);
} else {
assert(lex_type == asn1p_ref_name2lextype(name));
}
ref->components[ref->comp_count].name = strdup(name);
ref->components[ref->comp_count].lex_type = lex_type;
if(ref->components[ref->comp_count].name) {
ref->comp_count++;
return 0;
} else {
return -1;
}
}
asn1p_ref_t *
asn1p_ref_clone(asn1p_ref_t *ref) {
asn1p_ref_t *newref;
newref = asn1p_ref_new(ref->_lineno);
if(newref) {
int i;
for(i = 0; i < ref->comp_count; i++) {
if(asn1p_ref_add_component(newref,
ref->components[i].name,
ref->components[i].lex_type
)) {
asn1p_ref_free(newref);
newref = NULL;
break;
}
}
}
return newref;
}
|
