/* Write a block to a file pointer. Returns 1 for success; 0 for failure. */
int block_write(const struct block *b, FILE *fp)
{
unsigned char buf[SERIALIZED_BLOCK_LEN];
int n;
block_serialize(b, buf);
n = fwrite(buf, sizeof(buf), 1, fp);
return n >= 0;
}
/* Compute the hash value of a block using the current nonce. */
void block_hash(const struct block *b, hash_output h)
{
unsigned char buf[SERIALIZED_BLOCK_LEN];
SHA256_CTX sha;
block_serialize(b, buf);
SHA256_Init(&sha);
SHA256_Update(&sha, buf, sizeof(buf));
SHA256_Final(h, &sha);
}
int packet_serialize(struct packet *p, unsigned char *buf) {
if (!p) return 0;
int ret = 11;
*buf = p->family;
*(buf+1) = p->unk1;
*(buf+2) = p->dir;
*(buf+3) = p->pltype;
*(unsigned short *)(buf+4) = htons(p->connid);
*(buf+6) = p->subseq;
*(buf+7) = p->unk2;
*(unsigned short *)(buf+8) = htons(p->sessid);
*(buf+10) = p->tail;
if (p->data) ret += block_serialize(p->data, buf+11);
return ret;
}
