Revision 2050b9b0 src/ChunkTrading/chunk_encoding.c
| src/ChunkTrading/chunk_encoding.c | ||
|---|---|---|
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#include "trade_msg_la.h" |
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#include "int_coding.h" |
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|
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#define CHUNK_HEADER_SIZE 20 |
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int encodeChunk(const struct chunk *c, uint8_t *buff, int buff_len) |
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{
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uint32_t half_ts; |
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if (buff_len < 20 + c->size + c->attributes_size) {
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if (buff_len < CHUNK_HEADER_SIZE + c->size + c->attributes_size) {
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/* Not enough space... */ |
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return -1; |
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} |
| ... | ... | |
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int_cpy(buff + 8, half_ts); |
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int_cpy(buff + 12, c->size); |
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int_cpy(buff + 16, c->attributes_size); |
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memcpy(buff + 20, c->data, c->size);
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memcpy(buff + CHUNK_HEADER_SIZE, c->data, c->size);
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if (c->attributes_size) {
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memcpy(buff + 20 + c->size, c->attributes, c->attributes_size);
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memcpy(buff + CHUNK_HEADER_SIZE + c->size, c->attributes, c->attributes_size);
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} |
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return 20 + c->size + c->attributes_size;
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return CHUNK_HEADER_SIZE + c->size + c->attributes_size;
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} |
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|
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int decodeChunk(struct chunk *c, const uint8_t *buff, int buff_len) |
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{
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if (buff_len < 20) {
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if (buff_len < CHUNK_HEADER_SIZE) {
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return -1; |
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} |
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c->id = int_rcpy(buff); |
| ... | ... | |
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c->size = int_rcpy(buff + 12); |
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c->attributes_size = int_rcpy(buff + 16); |
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if (buff_len < c->size + 20) {
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if (buff_len < c->size + CHUNK_HEADER_SIZE) {
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return -2; |
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} |
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c->data = malloc(c->size); |
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if (c->data == NULL) {
|
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return -3; |
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} |
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memcpy(c->data, buff + 20, c->size);
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memcpy(c->data, buff + CHUNK_HEADER_SIZE, c->size);
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if (c->attributes_size > 0) {
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if (buff_len < c->size + c->attributes_size) {
|
| ... | ... | |
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if (c->attributes == NULL) {
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return -5; |
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} |
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memcpy(c->attributes, buff + 20 + c->size, c->attributes_size);
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memcpy(c->attributes, buff + CHUNK_HEADER_SIZE + c->size, c->attributes_size);
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} |
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return 20 + c->size + c->attributes_size;
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return CHUNK_HEADER_SIZE + c->size + c->attributes_size;
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} |
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