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
|
/*-
* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <UniversalString.h>
#include <UTF8String.h>
/*
* UniversalString basic type description.
*/
static const ber_tlv_tag_t asn_DEF_UniversalString_tags[] = {
(ASN_TAG_CLASS_UNIVERSAL | (28 << 2)), /* [UNIVERSAL 28] IMPLICIT ...*/
(ASN_TAG_CLASS_UNIVERSAL | (4 << 2)) /* ... OCTET STRING */
};
static asn_OCTET_STRING_specifics_t asn_DEF_UniversalString_specs = {
sizeof(UniversalString_t),
offsetof(UniversalString_t, _asn_ctx),
ASN_OSUBV_U32 /* 32-bits character */
};
static asn_per_constraints_t asn_DEF_UniversalString_constraints = {
{ APC_CONSTRAINED, 32, 32, 0, 2147483647 },
{ APC_SEMI_CONSTRAINED, -1, -1, 0, 0 },
0, 0
};
asn_TYPE_descriptor_t asn_DEF_UniversalString = {
"UniversalString",
"UniversalString",
OCTET_STRING_free,
UniversalString_print, /* Convert into UTF8 and print */
asn_generic_no_constraint,
OCTET_STRING_decode_ber,
OCTET_STRING_encode_der,
UniversalString_decode_xer, /* Convert from UTF-8 */
UniversalString_encode_xer, /* Convert into UTF-8 */
OCTET_STRING_decode_uper,
OCTET_STRING_encode_uper,
0, /* Use generic outmost tag fetcher */
asn_DEF_UniversalString_tags,
sizeof(asn_DEF_UniversalString_tags)
/ sizeof(asn_DEF_UniversalString_tags[0]) - 1,
asn_DEF_UniversalString_tags,
sizeof(asn_DEF_UniversalString_tags)
/ sizeof(asn_DEF_UniversalString_tags[0]),
&asn_DEF_UniversalString_constraints,
0, 0, /* No members */
&asn_DEF_UniversalString_specs
};
static ssize_t
UniversalString__dump(const UniversalString_t *st,
asn_app_consume_bytes_f *cb, void *app_key) {
char scratch[128]; /* Scratchpad buffer */
char *p = scratch;
ssize_t wrote = 0;
uint8_t *ch;
uint8_t *end;
ch = st->buf;
end = (st->buf + st->size);
for(end -= 3; ch < end; ch += 4) {
uint32_t wc = (ch[0] << 24)
| (ch[1] << 16)
| (ch[2] << 8)
| ch[3]; /* 4 bytes */
if(sizeof(scratch) - (p - scratch) < 6) {
wrote += p - scratch;
if(cb(scratch, p - scratch, app_key) < 0)
return -1;
p = scratch;
}
if(wc < 0x80) {
*p++ = (char)wc;
} else if(wc < 0x800) {
*p++ = 0xc0 | ((wc >> 6));
*p++ = 0x80 | ((wc & 0x3f));
} else if(wc < 0x10000) {
*p++ = 0xe0 | ((wc >> 12));
*p++ = 0x80 | ((wc >> 6) & 0x3f);
*p++ = 0x80 | ((wc & 0x3f));
} else if(wc < 0x200000) {
*p++ = 0xf0 | ((wc >> 18));
*p++ = 0x80 | ((wc >> 12) & 0x3f);
*p++ = 0x80 | ((wc >> 6) & 0x3f);
*p++ = 0x80 | ((wc & 0x3f));
} else if(wc < 0x4000000) {
*p++ = 0xf8 | ((wc >> 24));
*p++ = 0x80 | ((wc >> 18) & 0x3f);
*p++ = 0x80 | ((wc >> 12) & 0x3f);
*p++ = 0x80 | ((wc >> 6) & 0x3f);
*p++ = 0x80 | ((wc & 0x3f));
} else {
*p++ = 0xfc | ((wc >> 30) & 0x1);
*p++ = 0x80 | ((wc >> 24) & 0x3f);
*p++ = 0x80 | ((wc >> 18) & 0x3f);
*p++ = 0x80 | ((wc >> 12) & 0x3f);
*p++ = 0x80 | ((wc >> 6) & 0x3f);
*p++ = 0x80 | ((wc & 0x3f));
}
}
wrote += p - scratch;
if(cb(scratch, p - scratch, app_key) < 0)
return -1;
return wrote;
}
asn_dec_rval_t
UniversalString_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
asn_TYPE_descriptor_t *td, void **sptr,
const char *opt_mname, const void *buf_ptr, size_t size) {
asn_dec_rval_t rc;
rc = OCTET_STRING_decode_xer_utf8(opt_codec_ctx, td, sptr, opt_mname,
buf_ptr, size);
if(rc.code == RC_OK) {
/*
* Now we have a whole string in UTF-8 format.
* Convert it into UCS-4.
*/
uint32_t *wcs;
size_t wcs_len;
UTF8String_t *st;
#ifndef WORDS_BIGENDIAN
int little_endian = 1;
#endif
assert(*sptr);
st = (UTF8String_t *)*sptr;
assert(st->buf);
wcs_len = UTF8String_to_wcs(st, 0, 0);
wcs = (uint32_t *)MALLOC(4 * (wcs_len + 1));
if(wcs == 0 || UTF8String_to_wcs(st, wcs, wcs_len) != wcs_len) {
rc.code = RC_FAIL;
rc.consumed = 0;
return rc;
} else {
wcs[wcs_len] = 0; /* nul-terminate */
}
#ifndef WORDS_BIGENDIAN
if(*(char *)&little_endian) {
/* Swap byte order in encoding */
uint32_t *wc = wcs;
uint32_t *wc_end = wcs + wcs_len;
for(; wc < wc_end; wc++) {
/* *wc = htonl(*wc); */
uint32_t wch = *wc;
*((uint8_t *)wc + 0) = wch >> 24;
*((uint8_t *)wc + 1) = wch >> 16;
*((uint8_t *)wc + 2) = wch >> 8;
*((uint8_t *)wc + 3) = wch;
}
}
#endif /* WORDS_BIGENDIAN */
FREEMEM(st->buf);
st->buf = (uint8_t *)wcs;
st->size = 4 * wcs_len;
}
return rc;
}
asn_enc_rval_t
UniversalString_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
const UniversalString_t *st = (const UniversalString_t *)sptr;
asn_enc_rval_t er;
(void)ilevel;
(void)flags;
if(!st || !st->buf)
_ASN_ENCODE_FAILED;
er.encoded = UniversalString__dump(st, cb, app_key);
if(er.encoded < 0) _ASN_ENCODE_FAILED;
_ASN_ENCODED_OK(er);
}
int
UniversalString_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
asn_app_consume_bytes_f *cb, void *app_key) {
const UniversalString_t *st = (const UniversalString_t *)sptr;
(void)td; /* Unused argument */
(void)ilevel; /* Unused argument */
if(!st || !st->buf) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
if(UniversalString__dump(st, cb, app_key) < 0)
return -1;
return 0;
}
|
