Beispiel #1
0
struct packet *packet_deserialize(unsigned char *buf, int len) {
	if (len < 11) return NULL;

	struct packet *ret = malloc(sizeof(struct packet));

	ret->family = *buf;
	ret->unk1 = *(buf+1);
	ret->dir = *(buf+2);
	ret->pltype = *(buf+3);
	ret->connid = ntohs(*(unsigned short *)(buf+4));
	ret->subseq = *(buf+6);
	ret->unk2 = *(buf+7);
	ret->sessid = ntohs(*(unsigned short *)(buf+8));
	ret->tail = *(buf+10);

	ret->data = NULL;
	ret->rawdata = NULL;
	ret->rawdatalen = 0;

	if (len > 11) {
		// try to deserialize inner block
		ret->data = block_deserialize(buf+11, len-11, NULL);

		if (!ret->data) {
			// failed, save as raw data
			ret->rawdata = malloc(len-11);
			memcpy(ret->rawdata, buf+11, len-11);
			ret->rawdatalen = len-11;
		}
	}

	return ret;
}
Beispiel #2
0
/* Read a block from a file pointer. Returns 1 for success; 0 for failure. */
int block_read(struct block *b, FILE *fp)
{
	unsigned char buf[SERIALIZED_BLOCK_LEN];
	int n;

	n = fread(buf, sizeof(buf), 1, fp);
	if (n != 1)
		return 0;
	block_deserialize(b, buf);

	return 1;
}