void check_options(void) {
if (!opt_enabled(LOG_TCP | LOG_UDP | LOG_ICMP))
fatal("Told not to log anything. Exiting.");
if (opt_enabled(PROMISC) && opt_enabled(GET_IDENT))
fatal("The promisc and get_ident flags are not compatible.");
if (opt_enabled(NO_RESOLV))
flags &= ~(TCP_RES | UDP_RES | ICMP_RES);
else if (!(flags & (TCP_RES | UDP_RES | ICMP_RES)))
flags |= NO_RESOLV;
if (!opt_enabled(TCP_RES))
flags &= ~SYN_FLOOD;
if (opt_enabled(DNS_CACHE) && opt_enabled(NO_RESOLV))
flags ^= DNS_CACHE;
if (opt_enabled(SMURF) && !opt_enabled(LOG_ICMP | LOG_UDP))
flags ^= SMURF;
if (!opt_enabled(LOG_TCP))
flags &= ~(PORTSCAN | NULL_SCAN | FIN_SCAN | XMAS_SCAN);
if (!opt_enabled(LOG_ICMP))
flags &= ~PING_FLOOD;
if (!opt_enabled(LOG_UDP))
flags &= ~(UDP_SCAN | IGNORE_NS);
if (opt_enabled(FOOL_NMAP) && get_raw_sock() == false)
flags ^= FOOL_NMAP;
}
int raw_get_info(char *buffer, char **start, off_t offset, int length)
{
int len = 0, num = 0, i;
off_t pos = 128;
off_t begin;
char tmpbuf[129];
if (offset < 128)
len += sprintf(buffer, "%-127s\n",
" sl local_address rem_address st tx_queue "
"rx_queue tr tm->when retrnsmt uid timeout "
"inode");
read_lock(&raw_v4_lock);
for (i = 0; i < RAWV4_HTABLE_SIZE; i++) {
struct sock *sk;
for (sk = raw_v4_htable[i]; sk; sk = sk->next, num++) {
if (sk->family != PF_INET)
continue;
pos += 128;
if (pos <= offset)
continue;
get_raw_sock(sk, tmpbuf, i);
len += sprintf(buffer + len, "%-127s\n", tmpbuf);
if (len >= length)
goto out;
}
}
out:
read_unlock(&raw_v4_lock);
begin = len - (pos - offset);
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
if (len < 0)
len = 0;
return len;
}
