uint16_t us;
off_t offset;
char *t;
- int x;
+ int status;
/* The DNS header is 12 bytes long */
- if (len < 12)
+ if (len < DNS_MSG_HDR_SZ)
return 0;
memcpy(&us, buf + 0, 2);
memcpy(&us, buf + 10, 2);
qh.arcount = ntohs(us);
- offset = 12;
+ offset = DNS_MSG_HDR_SZ;
memset(qh.qname, '\0', MAX_QNAME_SZ);
- x = rfc1035NameUnpack(buf, len, &offset, qh.qname, MAX_QNAME_SZ);
- if (0 != x)
+ status = rfc1035NameUnpack(buf, len, &offset, qh.qname, MAX_QNAME_SZ);
+ if (status != 0)
+ {
+ INFO ("utils_dns: handle_dns: rfc1035NameUnpack failed "
+ "with status %i.", status);
return 0;
+ }
if ('\0' == qh.qname[0])
sstrncpy (qh.qname, ".", sizeof (qh.qname));
while ((t = strchr(qh.qname, '\n')))
return 1;
}
+#if HAVE_NETINET_IP6_H
static int
handle_ipv6 (struct ip6_hdr *ipv6, int len)
{
int nexthdr;
struct in6_addr s_addr;
- struct in6_addr d_addr;
uint16_t payload_len;
if (0 > len)
offset = sizeof (struct ip6_hdr);
nexthdr = ipv6->ip6_nxt;
s_addr = ipv6->ip6_src;
- d_addr = ipv6->ip6_dst;
payload_len = ntohs (ipv6->ip6_plen);
if (ignore_list_match (&s_addr))
return (1); /* Success */
} /* int handle_ipv6 */
+/* #endif HAVE_NETINET_IP6_H */
+
+#else /* if !HAVE_NETINET_IP6_H */
+static int
+handle_ipv6 (__attribute__((unused)) void *pkg,
+ __attribute__((unused)) int len)
+{
+ return (0);
+}
+#endif /* !HAVE_NETINET_IP6_H */
static int
handle_ip(const struct ip *ip, int len)
struct in6_addr d_addr;
if (ip->ip_v == 6)
- return (handle_ipv6 ((struct ip6_hdr *) ip, len));
+ return (handle_ipv6 ((void *) ip, len));
in6_addr_from_buffer (&s_addr, &ip->ip_src.s_addr, sizeof (ip->ip_src.s_addr), AF_INET);
in6_addr_from_buffer (&d_addr, &ip->ip_dst.s_addr, sizeof (ip->ip_dst.s_addr), AF_INET);
return 0;
memcpy(buf, pkt, len);
if (ETHERTYPE_IPV6 == etype)
- return (handle_ipv6 ((struct ip6_hdr *) buf, len));
+ return (handle_ipv6 ((void *) buf, len));
else
return handle_ip((struct ip *) buf, len);
}
return 0;
if (ETHERTYPE_IPV6 == etype)
- return (handle_ipv6 ((struct ip6_hdr *) pkt, len));
+ return (handle_ipv6 ((void *) pkt, len));
else
return handle_ip((struct ip *) pkt, len);
}
{
int status;
- DEBUG ("handle_pcap (udata = %p, hdr = %p, pkt = %p): hdr->caplen = %i\n",
- (void *) udata, (void *) hdr, (void *) pkt,
- hdr->caplen);
-
if (hdr->caplen < ETHER_HDR_LEN)
return;
break;
default:
- ERROR ("handle_pcap: unsupported data link type %d\n",
+ ERROR ("handle_pcap: unsupported data link type %d",
pcap_datalink(pcap_obj));
status = 0;
break;