12
32 | (2 << 6), /* [0], constructed */
15
/* string [0] IMPLICIT UTF8String, */
18
'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z',
20
/* beta [2] IMPLICIT INTEGER OPTIONAL */
21
(2 << 6) + 2, /* [2] */
30
uint8_t buf1_reconstr[] = {
31
32 | (2 << 6), /* [0], constructed */
34
/* string [0] IMPLICIT UTF8String, */
37
'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z', 'z',
39
/* beta [2] IMPLICIT INTEGER OPTIONAL */
40
(2 << 6) + 2, /* [2] */
50
check(T_t *tp, uint8_t *buf, int size, size_t consumed) {
53
tp = memset(tp, 0, sizeof(*tp));
55
fprintf(stderr, "Buf %p (%d)\n", buf, size);
56
rval = ber_decode(0, &asn_DEF_T, (void **)&tp, buf, size);
57
fprintf(stderr, "Returned code %d, consumed %d\n",
58
(int)rval.code, (int)rval.consumed);
60
assert(rval.code == RC_OK);
61
assert(rval.consumed == consumed);
63
assert(tp->choice.seq.string.size == 16);
64
assert(strcmp(tp->choice.seq.string.buf, "zzzzzzzzzzzzzzzz") == 0);
65
assert(tp->choice.seq.alpha == NULL);
66
assert(tp->choice.seq.beta);
67
assert(*tp->choice.seq.beta == 0x4b4b4b4b);
75
buf_fill(const void *buffer, size_t size, void *app_key) {
77
(void)app_key; /* Unused argument */
79
if(buf_pos + size > buf_size) {
80
fprintf(stderr, "%d + %d > %d\n",
81
(int)buf_pos, (int)size, (int)buf_size);
85
memcpy(buf + buf_pos, buffer, size);
87
fprintf(stderr, " written %d (%d)\n", (int)size, (int)buf_pos);
93
compare(T_t *tp, uint8_t *cmp_buf, int cmp_buf_size) {
97
buf_size = cmp_buf_size + 100;
98
buf = alloca(buf_size);
102
* Try to re-create using DER encoding.
104
erval = der_encode(&asn_DEF_T, tp, buf_fill, 0);
105
assert(erval.encoded != -1);
106
if(erval.encoded != cmp_buf_size) {
107
printf("%d != %d\n", erval.encoded, cmp_buf_size);
109
assert(erval.encoded == cmp_buf_size);
110
for(i = 0; i < cmp_buf_size; i++) {
111
if(buf[i] != cmp_buf[i]) {
112
fprintf(stderr, "Recreated buffer content mismatch:\n");
113
fprintf(stderr, "Byte %d, %x != %x (%d != %d)\n",
119
assert(buf[i] == cmp_buf[i]);
124
partial_read(uint8_t *buf_0, size_t size) {
128
uint8_t *buf_1 = alloca(size);
129
uint8_t *buf_2 = alloca(size);
130
uint8_t *buf_3 = alloca(size);
132
fprintf(stderr, "\nPartial read sequence...\n");
135
* Divide the space (size) into three blocks in various combinations:
136
* |<----->i1<----->i2<----->|
137
* ^ buf_0 ^ buf_0+size
138
* Try to read block by block.
140
for(i1 = 0; i1 < size; i1++) {
141
for(i2 = i1; i2 < size; i2++) {
142
uint8_t *chunk1 = buf_0;
144
uint8_t *chunk2 = buf_0 + size1;
145
size_t size2 = i2 - i1;
146
uint8_t *chunk3 = buf_0 + size1 + size2;
147
size_t size3 = size - size1 - size2;
149
fprintf(stderr, "\n%d:{%d, %d, %d}...\n",
150
(int)size, (int)size1, (int)size2, (int)size3);
152
memset(buf_1, 0, size);
153
memset(buf_2, 0, size);
154
memset(buf_3, 0, size);
155
memcpy(buf_1, chunk1, size1);
156
memcpy(buf_2, chunk2, size2);
157
memcpy(buf_3, chunk3, size3);
159
tp = memset(&t, 0, sizeof(t));
161
fprintf(stderr, "=> Chunk 1 (%d):\n", (int)size1);
162
rval = ber_decode(0, &asn_DEF_T, (void **)&tp,
164
assert(rval.code == RC_WMORE);
165
assert(rval.consumed <= size1);
166
if(rval.consumed < size1) {
167
int leftover = size1 - rval.consumed;
168
memcpy(buf_2, buf_1 + rval.consumed, leftover);
169
memcpy(buf_2 + leftover, chunk2, size2);
173
fprintf(stderr, "=> Chunk 2 (%d):\n", (int)size2);
174
rval = ber_decode(0, &asn_DEF_T, (void **)&tp,
176
assert(rval.code == RC_WMORE);
177
assert(rval.consumed <= size2);
178
if(rval.consumed < size2) {
179
int leftover = size2 - rval.consumed;
180
memcpy(buf_3, buf_2 + rval.consumed, leftover);
181
memcpy(buf_3 + leftover, chunk3, size3);
185
fprintf(stderr, "=> Chunk 3 (%d):\n", (int)size3);
186
rval = ber_decode(0, &asn_DEF_T, (void **)&tp,
188
assert(rval.code == RC_OK);
189
assert(rval.consumed == size3);
191
asn_DEF_T.free_struct(&asn_DEF_T, &t, 1);
197
main(int ac, char **av) {
200
(void)ac; /* Unused argument */
201
(void)av; /* Unused argument */
203
/* Check exact buf1 */
204
check(&t, buf1, sizeof(buf1), sizeof(buf1));
205
compare(&t, buf1_reconstr, sizeof(buf1_reconstr));
206
asn_fprint(stderr, &asn_DEF_T, &t);
207
asn_DEF_T.free_struct(&asn_DEF_T, &t, 1);
209
/* Check slightly more than buf1 */
210
check(&t, buf1, sizeof(buf1) + 10, sizeof(buf1));
211
compare(&t, buf1_reconstr, sizeof(buf1_reconstr));
212
asn_fprint(stderr, &asn_DEF_T, &t);
213
asn_DEF_T.free_struct(&asn_DEF_T, &t, 1);
215
/* Split the buffer in parts and check decoder restartability */
216
partial_read(buf1, sizeof(buf1));