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
|
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include "asn1parser.h"
#include "asn1p_list.h"
int asn1p_parse(void **param);
void *asn1p__scan_bytes(const char *, int len);
void *asn1p__delete_buffer(void *);
void *asn1p_restart(FILE *);
extern int asn1p_lineno;
static int _asn1p_set_flags(enum asn1p_flags flags);
static int _asn1p_fix_modules(asn1p_t *a, const char *fname);
/*
* Parse the given buffer.
*/
asn1p_t *
asn1p_parse_buffer(const char *buffer, int size /* = -1 */, enum asn1p_flags flags) {
asn1p_t *a = 0;
void *ap;
void *ybuf;
int ret;
if(_asn1p_set_flags(flags)) {
/* EINVAL */
return 0;
}
if(size < 0)
size = (int)strlen(buffer);
ybuf = asn1p__scan_bytes(buffer, size);
if(!ybuf) {
assert(ybuf);
return 0;
}
asn1p_lineno = 1;
ap = (void *)&a;
ret = asn1p_parse(ap);
asn1p__delete_buffer(ybuf);
if(ret == 0) {
assert(a);
if(_asn1p_fix_modules(a, "-"))
return NULL; /* FIXME: destroy (a) */
} else if(a) {
asn1p_delete(a);
a = NULL;
}
return a;
}
/*
* Parse the file identified by its name.
*/
asn1p_t *
asn1p_parse_file(const char *filename, enum asn1p_flags flags) {
#ifndef _WIN32
struct stat sb;
#endif
asn1p_t *a = 0;
void *ap;
FILE *fp;
int ret;
if(_asn1p_set_flags(flags)) {
/* EINVAL */
return 0;
}
fp = fopen(filename, "r");
if(fp == NULL) {
perror(filename);
return NULL;
}
#ifndef _WIN32
if(fstat(fileno(fp), &sb)
|| !S_ISREG(sb.st_mode)) {
fclose(fp);
fprintf(stderr, "%s file not recognized: Bad file format\n",
filename);
errno = EINVAL;
return NULL;
}
#endif /* _WIN32 */
asn1p_lineno = 1;
asn1p_restart(fp);
ap = (void *)&a;
ret = asn1p_parse(ap);
fclose(fp);
if(ret == 0) {
assert(a);
if(_asn1p_fix_modules(a, filename))
return NULL; /* FIXME: destroy (a) */
} else if(a) {
asn1p_delete(a);
a = NULL;
}
return a;
}
extern int asn1p_lexer_types_year;
extern int asn1p_lexer_constructs_year;
extern int asn1p__flex_debug;
static int
_asn1p_set_flags(enum asn1p_flags flags) {
asn1p_lexer_types_year = 0;
asn1p_lexer_constructs_year = 0;
asn1p__flex_debug = 0;
/*
* Enable debugging in lexer.
*/
if(flags & A1P_LEXER_DEBUG) {
flags &= ~A1P_LEXER_DEBUG;
asn1p__flex_debug = 1;
}
/*
* Check that we haven't missed an unknown flag.
*/
if(flags) {
errno = EINVAL;
return -1;
}
return 0;
}
static int
_asn1p_fix_modules(asn1p_t *a, const char *fname) {
asn1p_module_t *mod;
TQ_FOR(mod, &(a->modules), mod_next) {
mod->source_file_name = strdup(fname);
if(mod->source_file_name == NULL)
return -1;
mod->asn1p = a;
}
return 0;
}
int
asn1p_atoi(const char *ptr, asn1c_integer_t *value) {
errno = 0; /* Clear the error code */
if(sizeof(*value) <= sizeof(int)) {
*value = strtol(ptr, 0, 10);
} else {
#ifdef HAVE_STRTOIMAX
*value = strtoimax(ptr, 0, 10);
#elif HAVE_STRTOLL
*value = strtoll(ptr, 0, 10);
#else
*value = strtol(ptr, 0, 10);
#endif
}
return errno == 0 ? 0 : -1;
}
|
