#define _BSD_SOURCE
#include "collectd.h"
-#include "plugin.h"
-#include "common.h"
-#if HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
+#include "common.h"
+#include "plugin.h"
#if HAVE_NET_IF_ARP_H
-# include <net/if_arp.h>
+#include <net/if_arp.h>
#endif
#if HAVE_NET_IF_H
-# include <net/if.h>
+#include <net/if.h>
#endif
#if HAVE_NET_PPP_DEFS_H
-# include <net/ppp_defs.h>
+#include <net/ppp_defs.h>
#endif
#if HAVE_NET_IF_PPP_H
-# include <net/if_ppp.h>
+#include <net/if_ppp.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
-# include <netinet/in_systm.h>
+#include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
-# include <netinet/in.h>
+#include <netinet/in.h>
#endif
#if HAVE_NETINET_IP6_H
-# include <netinet/ip6.h>
-#endif
-#if HAVE_NETINET_IP_COMPAT_H
-# include <netinet/ip_compat.h>
+#include <netinet/ip6.h>
#endif
#if HAVE_NETINET_IF_ETHER_H
-# include <netinet/if_ether.h>
+#include <netinet/if_ether.h>
#endif
#if HAVE_NETINET_IP_H
-# include <netinet/ip.h>
+#include <netinet/ip.h>
#endif
#ifdef HAVE_NETINET_IP_VAR_H
-# include <netinet/ip_var.h>
+#include <netinet/ip_var.h>
#endif
#if HAVE_NETINET_UDP_H
-# include <netinet/udp.h>
+#include <netinet/udp.h>
#endif
#if HAVE_ARPA_INET_H
+#include <arpa/inet.h>
#endif
#if HAVE_ARPA_NAMESER_H
-#
include <arpa/nameser.h>
+#include <arpa/nameser.h>
#endif
#if HAVE_ARPA_NAMESER_COMPAT_H
-#
include <arpa/nameser_compat.h>
+#include <arpa/nameser_compat.h>
#endif
#if HAVE_NETDB_H
-# include <netdb.h>
+#include <netdb.h>
#endif
#if HAVE_PCAP_H
+#include <pcap.h>
#endif
#define PCAP_SNAPLEN 1460
#define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN)
#endif
#ifndef ETHERTYPE_8021Q
-# define ETHERTYPE_8021Q 0x8100
+#define ETHERTYPE_8021Q 0x8100
#endif
#ifndef ETHERTYPE_IPV6
-# define ETHERTYPE_IPV6 0x86DD
+#define ETHERTYPE_IPV6 0x86DD
#endif
#ifndef PPP_ADDRESS_VAL
-# define PPP_ADDRESS_VAL 0xff /* The address byte value */
+#define PPP_ADDRESS_VAL 0xff /* The address byte value */
#endif
#ifndef PPP_CONTROL_VAL
-# define PPP_CONTROL_VAL 0x03 /* The control byte value */
+#define PPP_CONTROL_VAL 0x03 /* The control byte value */
#endif
#if HAVE_STRUCT_UDPHDR_UH_DPORT && HAVE_STRUCT_UDPHDR_UH_SPORT
-# define UDP_DEST uh_dport
-# define UDP_SRC uh_sport
+#define UDP_DEST uh_dport
+#define UDP_SRC uh_sport
#elif HAVE_STRUCT_UDPHDR_DEST && HAVE_STRUCT_UDPHDR_SOURCE
-# define UDP_DEST dest
-# define UDP_SRC source
+#define UDP_DEST dest
+#define UDP_SRC source
#else
-# error "`struct udphdr' is unusable."
+#error "`struct udphdr' is unusable."
#endif
#if HAVE_NETINET_IP6_H && HAVE_STRUCT_IP6_EXT
-# define HAVE_IPV6 1
+#define HAVE_IPV6 1
#endif
#include "utils_dns.h"
/*
* Type definitions
*/
-struct ip_list_s
-{
- struct in6_addr addr;
- void *data;
- struct ip_list_s *next;
+struct ip_list_s {
+ struct in6_addr addr;
+ void *data;
+ struct ip_list_s *next;
};
typedef struct ip_list_s ip_list_t;
-typedef int (printer)(const char *, ...);
+typedef int(printer)(const char *, ...);
/*
* flags/features for non-interactive mode
/*
* Global variables
*/
-int qtype_counts[T_MAX];
-int opcode_counts[OP_MAX];
-int qclass_counts[C_MAX];
#if HAVE_PCAP_H
static pcap_t *pcap_obj = NULL;
static ip_list_t *IgnoreList = NULL;
#if HAVE_PCAP_H
-static void (*Callback) (const rfc1035_header_t *) = NULL;
+static void (*Callback)(const rfc1035_header_t *) = NULL;
static int query_count_intvl = 0;
static int query_count_total = 0;
-# ifdef __OpenBSD__
+#ifdef __OpenBSD__
static struct bpf_timeval last_ts;
-# else
+#else
static struct timeval last_ts;
-# endif /* __OpenBSD__ */
+#endif /* __OpenBSD__ */
#endif /* HAVE_PCAP_H */
-static int cmp_in6_addr (const struct in6_addr *a,
- const struct in6_addr *b)
-{
- int i;
+static int cmp_in6_addr(const struct in6_addr *a, const struct in6_addr *b) {
+ int i;
- assert (sizeof (struct in6_addr) == 16);
+ assert(sizeof(struct in6_addr) == 16);
- for (i = 0; i < 16; i++)
- if (a->s6_addr[i] != b->s6_addr[i])
- break;
+ for (i = 0; i < 16; i++)
+ if (a->s6_addr[i] != b->s6_addr[i])
+ break;
- if (i >= 16)
- return (0);
+ if (i >= 16)
+ return 0;
- return (a->s6_addr[i] > b->s6_addr[i] ? 1 : -1);
+ return a->s6_addr[i] > b->s6_addr[i] ? 1 : -1;
} /* int cmp_addrinfo */
-static inline int ignore_list_match (const struct in6_addr *addr)
-{
- ip_list_t *ptr;
-
- for (ptr = IgnoreList; ptr != NULL; ptr = ptr->next)
- if (cmp_in6_addr (addr, &ptr->addr) == 0)
- return (1);
- return (0);
+static inline int ignore_list_match(const struct in6_addr *addr) {
+ for (ip_list_t *ptr = IgnoreList; ptr != NULL; ptr = ptr->next)
+ if (cmp_in6_addr(addr, &ptr->addr) == 0)
+ return 1;
+ return 0;
} /* int ignore_list_match */
-static void ignore_list_add (const struct in6_addr *addr)
-{
- ip_list_t *new;
+static void ignore_list_add(const struct in6_addr *addr) {
+ ip_list_t *new;
- if (ignore_list_match (addr) != 0)
- return;
+ if (ignore_list_match(addr) != 0)
+ return;
- new = malloc (sizeof (ip_list_t));
- if (new == NULL)
- {
- perror ("malloc");
- return;
- }
+ new = malloc(sizeof(*new));
+ if (new == NULL) {
+ perror("malloc");
+ return;
+ }
- memcpy (&new->addr, addr, sizeof (struct in6_addr));
- new->next = IgnoreList;
+ memcpy(&new->addr, addr, sizeof(struct in6_addr));
+ new->next = IgnoreList;
- IgnoreList = new;
+ IgnoreList = new;
} /* void ignore_list_add */
-void ignore_list_add_name (const char *name)
-{
- struct addrinfo *ai_list;
- struct addrinfo *ai_ptr;
- struct in6_addr addr;
- int status;
-
- status = getaddrinfo (name, NULL, NULL, &ai_list);
- if (status != 0)
- return;
-
- for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
- {
- if (ai_ptr->ai_family == AF_INET)
- {
- memset (&addr, '\0', sizeof (addr));
- addr.s6_addr[10] = 0xFF;
- addr.s6_addr[11] = 0xFF;
- memcpy (addr.s6_addr + 12, &((struct sockaddr_in *) ai_ptr->ai_addr)->sin_addr, 4);
-
- ignore_list_add (&addr);
- }
- else
- {
- ignore_list_add (&((struct sockaddr_in6 *) ai_ptr->ai_addr)->sin6_addr);
- }
- } /* for */
+void ignore_list_add_name(const char *name) {
+ struct addrinfo *ai_list;
+ struct in6_addr addr;
+ int status;
+
+ status = getaddrinfo(name, NULL, NULL, &ai_list);
+ if (status != 0)
+ return;
+
+ for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL;
+ ai_ptr = ai_ptr->ai_next) {
+ if (ai_ptr->ai_family == AF_INET) {
+ memset(&addr, '\0', sizeof(addr));
+ addr.s6_addr[10] = 0xFF;
+ addr.s6_addr[11] = 0xFF;
+ memcpy(addr.s6_addr + 12,
+ &((struct sockaddr_in *)ai_ptr->ai_addr)->sin_addr, 4);
+
+ ignore_list_add(&addr);
+ } else {
+ ignore_list_add(&((struct sockaddr_in6 *)ai_ptr->ai_addr)->sin6_addr);
+ }
+ } /* for */
- freeaddrinfo (ai_list);
+ freeaddrinfo(ai_list);
}
#if HAVE_PCAP_H
-static void in6_addr_from_buffer (struct in6_addr *ia,
- const void *buf, size_t buf_len,
- int family)
-{
- memset (ia, 0, sizeof (struct in6_addr));
- if ((AF_INET == family) && (sizeof (uint32_t) == buf_len))
- {
- ia->s6_addr[10] = 0xFF;
- ia->s6_addr[11] = 0xFF;
- memcpy (ia->s6_addr + 12, buf, buf_len);
- }
- else if ((AF_INET6 == family) && (sizeof (struct in6_addr) == buf_len))
- {
- memcpy (ia, buf, buf_len);
- }
+static void in6_addr_from_buffer(struct in6_addr *ia, const void *buf,
+ size_t buf_len, int family) {
+ memset(ia, 0, sizeof(struct in6_addr));
+ if ((AF_INET == family) && (sizeof(uint32_t) == buf_len)) {
+ ia->s6_addr[10] = 0xFF;
+ ia->s6_addr[11] = 0xFF;
+ memcpy(ia->s6_addr + 12, buf, buf_len);
+ } else if ((AF_INET6 == family) && (sizeof(struct in6_addr) == buf_len)) {
+ memcpy(ia, buf, buf_len);
+ }
} /* void in6_addr_from_buffer */
-void dnstop_set_pcap_obj (pcap_t *po)
-{
- pcap_obj = po;
-}
+void dnstop_set_pcap_obj(pcap_t *po) { pcap_obj = po; }
-void dnstop_set_callback (void (*cb) (const rfc1035_header_t *))
-{
- Callback = cb;
+void dnstop_set_callback(void (*cb)(const rfc1035_header_t *)) {
+ Callback = cb;
}
#define RFC1035_MAXLABELSZ 63
-static int
-rfc1035NameUnpack(const char *buf, size_t sz, off_t * off, char *name, size_t ns
-)
-{
- off_t no = 0;
- unsigned char c;
- size_t len;
- static int loop_detect = 0;
- if (loop_detect > 2)
- return 4; /* compression loop */
- if (ns <= 0)
- return 4; /* probably compression loop */
- do {
- if ((*off) >= sz)
- break;
- c = *(buf + (*off));
- if (c > 191) {
- /* blasted compression */
- int rc;
- unsigned short s;
- off_t ptr;
- memcpy(&s, buf + (*off), sizeof(s));
- s = ntohs(s);
- (*off) += sizeof(s);
- /* Sanity check */
- if ((*off) >= sz)
- return 1; /* message too short */
- ptr = s & 0x3FFF;
- /* Make sure the pointer is inside this message */
- if (ptr >= sz)
- return 2; /* bad compression ptr */
- if (ptr < DNS_MSG_HDR_SZ)
- return 2; /* bad compression ptr */
- loop_detect++;
- rc = rfc1035NameUnpack(buf, sz, &ptr, name + no, ns - no);
- loop_detect--;
- return rc;
- } else if (c > RFC1035_MAXLABELSZ) {
- /*
- * "(The 10 and 01 combinations are reserved for future use.)"
- */
- return 3; /* reserved label/compression flags */
- break;
- } else {
- (*off)++;
- len = (size_t) c;
- if (len == 0)
- break;
- if (len > (ns - 1))
- len = ns - 1;
- if ((*off) + len > sz)
- return 4; /* message is too short */
- if (no + len + 1 > ns)
- return 5; /* qname would overflow name buffer */
- memcpy(name + no, buf + (*off), len);
- (*off) += len;
- no += len;
- *(name + (no++)) = '.';
- }
- } while (c > 0);
- if (no > 0)
- *(name + no - 1) = '\0';
- /* make sure we didn't allow someone to overflow the name buffer */
- assert(no <= ns);
- return 0;
+static int rfc1035NameUnpack(const char *buf, size_t sz, off_t *off, char *name,
+ size_t ns) {
+ off_t no = 0;
+ unsigned char c;
+ size_t len;
+ static int loop_detect = 0;
+ if (loop_detect > 2)
+ return 4; /* compression loop */
+ if (ns == 0)
+ return 4; /* probably compression loop */
+ do {
+ if ((*off) >= ((off_t)sz))
+ break;
+ c = *(buf + (*off));
+ if (c > 191) {
+ /* blasted compression */
+ int rc;
+ unsigned short s;
+ off_t ptr;
+ memcpy(&s, buf + (*off), sizeof(s));
+ s = ntohs(s);
+ (*off) += sizeof(s);
+ /* Sanity check */
+ if ((*off) >= ((off_t)sz))
+ return 1; /* message too short */
+ ptr = s & 0x3FFF;
+ /* Make sure the pointer is inside this message */
+ if (ptr >= ((off_t)sz))
+ return 2; /* bad compression ptr */
+ if (ptr < DNS_MSG_HDR_SZ)
+ return 2; /* bad compression ptr */
+ loop_detect++;
+ rc = rfc1035NameUnpack(buf, sz, &ptr, name + no, ns - no);
+ loop_detect--;
+ return rc;
+ } else if (c > RFC1035_MAXLABELSZ) {
+ /*
+ * "(The 10 and 01 combinations are reserved for future use.)"
+ */
+ return 3; /* reserved label/compression flags */
+ } else {
+ (*off)++;
+ len = (size_t)c;
+ if (len == 0)
+ break;
+ if (len > (ns - 1))
+ len = ns - 1;
+ if ((*off) + len > sz)
+ return 4; /* message is too short */
+ if (no + len + 1 > ns)
+ return 5; /* qname would overflow name buffer */
+ memcpy(name + no, buf + (*off), len);
+ (*off) += len;
+ no += len;
+ *(name + (no++)) = '.';
+ }
+ } while (c > 0);
+ if (no > 0)
+ *(name + no - 1) = '\0';
+ /* make sure we didn't allow someone to overflow the name buffer */
+ assert(no <= ((off_t)ns));
+ return 0;
}
-static int
-handle_dns(const char *buf, int len)
-{
- rfc1035_header_t qh;
- uint16_t us;
- off_t offset;
- char *t;
- int status;
-
- /* The DNS header is 12 bytes long */
- if (len < DNS_MSG_HDR_SZ)
- return 0;
-
- memcpy(&us, buf + 0, 2);
- qh.id = ntohs(us);
-
- memcpy(&us, buf + 2, 2);
- us = ntohs(us);
- qh.qr = (us >> 15) & 0x01;
- qh.opcode = (us >> 11) & 0x0F;
- qh.aa = (us >> 10) & 0x01;
- qh.tc = (us >> 9) & 0x01;
- qh.rd = (us >> 8) & 0x01;
- qh.ra = (us >> 7) & 0x01;
- qh.z = (us >> 6) & 0x01;
- qh.ad = (us >> 5) & 0x01;
- qh.cd = (us >> 4) & 0x01;
- qh.rcode = us & 0x0F;
-
- memcpy(&us, buf + 4, 2);
- qh.qdcount = ntohs(us);
-
- memcpy(&us, buf + 6, 2);
- qh.ancount = ntohs(us);
-
- memcpy(&us, buf + 8, 2);
- qh.nscount = ntohs(us);
-
- memcpy(&us, buf + 10, 2);
- qh.arcount = ntohs(us);
-
- offset = DNS_MSG_HDR_SZ;
- memset(qh.qname, '\0', MAX_QNAME_SZ);
- 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')))
- *t = ' ';
- while ((t = strchr(qh.qname, '\r')))
- *t = ' ';
- for (t = qh.qname; *t; t++)
- *t = tolower((int) *t);
-
- memcpy(&us, buf + offset, 2);
- qh.qtype = ntohs(us);
- memcpy(&us, buf + offset + 2, 2);
- qh.qclass = ntohs(us);
-
- qh.length = (uint16_t) len;
-
- /* gather stats */
- qtype_counts[qh.qtype]++;
- qclass_counts[qh.qclass]++;
- opcode_counts[qh.opcode]++;
-
- if (Callback != NULL)
- Callback (&qh);
-
- return 1;
+static int handle_dns(const char *buf, int len) {
+ rfc1035_header_t qh;
+ uint16_t us;
+ off_t offset;
+ char *t;
+ int status;
+
+ /* The DNS header is 12 bytes long */
+ if (len < DNS_MSG_HDR_SZ)
+ return 0;
+
+ memcpy(&us, buf + 0, 2);
+ qh.id = ntohs(us);
+
+ memcpy(&us, buf + 2, 2);
+ us = ntohs(us);
+ qh.qr = (us >> 15) & 0x01;
+ qh.opcode = (us >> 11) & 0x0F;
+ qh.aa = (us >> 10) & 0x01;
+ qh.tc = (us >> 9) & 0x01;
+ qh.rd = (us >> 8) & 0x01;
+ qh.ra = (us >> 7) & 0x01;
+ qh.z = (us >> 6) & 0x01;
+ qh.ad = (us >> 5) & 0x01;
+ qh.cd = (us >> 4) & 0x01;
+ qh.rcode = us & 0x0F;
+
+ memcpy(&us, buf + 4, 2);
+ qh.qdcount = ntohs(us);
+
+ memcpy(&us, buf + 6, 2);
+ qh.ancount = ntohs(us);
+
+ memcpy(&us, buf + 8, 2);
+ qh.nscount = ntohs(us);
+
+ memcpy(&us, buf + 10, 2);
+ qh.arcount = ntohs(us);
+
+ offset = DNS_MSG_HDR_SZ;
+ memset(qh.qname, '\0', MAX_QNAME_SZ);
+ 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')))
+ *t = ' ';
+ while ((t = strchr(qh.qname, '\r')))
+ *t = ' ';
+ for (t = qh.qname; *t; t++)
+ *t = tolower((int)*t);
+
+ memcpy(&us, buf + offset, 2);
+ qh.qtype = ntohs(us);
+ memcpy(&us, buf + offset + 2, 2);
+ qh.qclass = ntohs(us);
+
+ qh.length = (uint16_t)len;
+
+ if (Callback != NULL)
+ Callback(&qh);
+
+ return 1;
}
-static int
-handle_udp(const struct udphdr *udp, int len)
-{
- char buf[PCAP_SNAPLEN];
- if ((ntohs (udp->UDP_DEST) != 53)
- && (ntohs (udp->UDP_SRC) != 53))
- return 0;
- memcpy(buf, udp + 1, len - sizeof(*udp));
- if (0 == handle_dns(buf, len - sizeof(*udp)))
- return 0;
- return 1;
+static int handle_udp(const struct udphdr *udp, int len) {
+ char buf[PCAP_SNAPLEN];
+ if ((ntohs(udp->UDP_DEST) != 53) && (ntohs(udp->UDP_SRC) != 53))
+ return 0;
+ memcpy(buf, udp + 1, len - sizeof(*udp));
+ if (0 == handle_dns(buf, len - sizeof(*udp)))
+ return 0;
+ return 1;
}
#if HAVE_IPV6
-static int
-handle_ipv6 (struct ip6_hdr *ipv6, int len)
-{
- char buf[PCAP_SNAPLEN];
- unsigned int offset;
- int nexthdr;
-
- struct in6_addr c_src_addr;
- uint16_t payload_len;
-
- if (0 > len)
- return (0);
-
- offset = sizeof (struct ip6_hdr);
- nexthdr = ipv6->ip6_nxt;
- c_src_addr = ipv6->ip6_src;
- payload_len = ntohs (ipv6->ip6_plen);
-
- if (ignore_list_match (&c_src_addr))
- return (0);
-
- /* Parse extension headers. This only handles the standard headers, as
- * defined in RFC 2460, correctly. Fragments are discarded. */
- while ((IPPROTO_ROUTING == nexthdr) /* routing header */
- || (IPPROTO_HOPOPTS == nexthdr) /* Hop-by-Hop options. */
- || (IPPROTO_FRAGMENT == nexthdr) /* fragmentation header. */
- || (IPPROTO_DSTOPTS == nexthdr) /* destination options. */
- || (IPPROTO_AH == nexthdr) /* destination options. */
- || (IPPROTO_ESP == nexthdr)) /* encapsulating security payload. */
- {
- struct ip6_ext ext_hdr;
- uint16_t ext_hdr_len;
-
- /* Catch broken packets */
- if ((offset + sizeof (struct ip6_ext)) > (unsigned int)len)
- return (0);
-
- /* Cannot handle fragments. */
- if (IPPROTO_FRAGMENT == nexthdr)
- return (0);
-
- memcpy (&ext_hdr, (char *) ipv6 + offset, sizeof (struct ip6_ext));
- nexthdr = ext_hdr.ip6e_nxt;
- ext_hdr_len = (8 * (ntohs (ext_hdr.ip6e_len) + 1));
-
- /* This header is longer than the packets payload.. WTF? */
- if (ext_hdr_len > payload_len)
- return (0);
-
- offset += ext_hdr_len;
- payload_len -= ext_hdr_len;
- } /* while */
-
- /* Catch broken and empty packets */
- if (((offset + payload_len) > (unsigned int)len)
- || (payload_len == 0)
- || (payload_len > PCAP_SNAPLEN))
- return (0);
-
- if (IPPROTO_UDP != nexthdr)
- return (0);
-
- memcpy (buf, (char *) ipv6 + offset, payload_len);
- if (handle_udp ((struct udphdr *) buf, payload_len) == 0)
- return (0);
-
- return (1); /* Success */
+static int handle_ipv6(struct ip6_hdr *ipv6, int len) {
+ char buf[PCAP_SNAPLEN];
+ unsigned int offset;
+ int nexthdr;
+
+ struct in6_addr c_src_addr;
+ uint16_t payload_len;
+
+ if (0 > len)
+ return 0;
+
+ offset = sizeof(struct ip6_hdr);
+ nexthdr = ipv6->ip6_nxt;
+ c_src_addr = ipv6->ip6_src;
+ payload_len = ntohs(ipv6->ip6_plen);
+
+ if (ignore_list_match(&c_src_addr))
+ return 0;
+
+ /* Parse extension headers. This only handles the standard headers, as
+ * defined in RFC 2460, correctly. Fragments are discarded. */
+ while ((IPPROTO_ROUTING == nexthdr) /* routing header */
+ || (IPPROTO_HOPOPTS == nexthdr) /* Hop-by-Hop options. */
+ || (IPPROTO_FRAGMENT == nexthdr) /* fragmentation header. */
+ || (IPPROTO_DSTOPTS == nexthdr) /* destination options. */
+ || (IPPROTO_AH == nexthdr) /* destination options. */
+ || (IPPROTO_ESP == nexthdr)) /* encapsulating security payload. */
+ {
+ struct ip6_ext ext_hdr;
+ uint16_t ext_hdr_len;
+
+ /* Catch broken packets */
+ if ((offset + sizeof(struct ip6_ext)) > (unsigned int)len)
+ return 0;
+
+ /* Cannot handle fragments. */
+ if (IPPROTO_FRAGMENT == nexthdr)
+ return 0;
+
+ memcpy(&ext_hdr, (char *)ipv6 + offset, sizeof(struct ip6_ext));
+ nexthdr = ext_hdr.ip6e_nxt;
+ ext_hdr_len = (8 * (ntohs(ext_hdr.ip6e_len) + 1));
+
+ /* This header is longer than the packets payload.. WTF? */
+ if (ext_hdr_len > payload_len)
+ return 0;
+
+ offset += ext_hdr_len;
+ payload_len -= ext_hdr_len;
+ } /* while */
+
+ /* Catch broken and empty packets */
+ if (((offset + payload_len) > (unsigned int)len) || (payload_len == 0) ||
+ (payload_len > PCAP_SNAPLEN))
+ return 0;
+
+ if (IPPROTO_UDP != nexthdr)
+ return 0;
+
+ memcpy(buf, (char *)ipv6 + offset, payload_len);
+ if (handle_udp((struct udphdr *)buf, payload_len) == 0)
+ return 0;
+
+ return 1; /* Success */
} /* int handle_ipv6 */
/* #endif HAVE_IPV6 */
-#else /* if !HAVE_IPV6 */
-static int
-handle_ipv6 (__attribute__((unused)) void *pkg,
- __attribute__((unused)) int len)
-{
- return (0);
+#else /* if !HAVE_IPV6 */
+static int handle_ipv6(__attribute__((unused)) void *pkg,
+ __attribute__((unused)) int len) {
+ return 0;
}
#endif /* !HAVE_IPV6 */
-static int
-handle_ip(const struct ip *ip, int len)
-{
- char buf[PCAP_SNAPLEN];
- int offset = ip->ip_hl << 2;
- struct in6_addr c_src_addr;
- struct in6_addr c_dst_addr;
-
- if (ip->ip_v == 6)
- return (handle_ipv6 ((void *) ip, len));
-
- in6_addr_from_buffer (&c_src_addr, &ip->ip_src.s_addr, sizeof (ip->ip_src.s_addr), AF_INET);
- in6_addr_from_buffer (&c_dst_addr, &ip->ip_dst.s_addr, sizeof (ip->ip_dst.s_addr), AF_INET);
- if (ignore_list_match (&c_src_addr))
- return (0);
- if (IPPROTO_UDP != ip->ip_p)
- return 0;
- memcpy(buf, (void *) ip + offset, len - offset);
- if (0 == handle_udp((struct udphdr *) buf, len - offset))
- return 0;
- return 1;
+static int handle_ip(const struct ip *ip, int len) {
+ char buf[PCAP_SNAPLEN];
+ int offset = ip->ip_hl << 2;
+ struct in6_addr c_src_addr;
+ struct in6_addr c_dst_addr;
+
+ if (ip->ip_v == 6)
+ return handle_ipv6((void *)ip, len);
+
+ in6_addr_from_buffer(&c_src_addr, &ip->ip_src.s_addr,
+ sizeof(ip->ip_src.s_addr), AF_INET);
+ in6_addr_from_buffer(&c_dst_addr, &ip->ip_dst.s_addr,
+ sizeof(ip->ip_dst.s_addr), AF_INET);
+ if (ignore_list_match(&c_src_addr))
+ return 0;
+ if (IPPROTO_UDP != ip->ip_p)
+ return 0;
+ memcpy(buf, ((char *)ip) + offset, len - offset);
+ if (0 == handle_udp((struct udphdr *)buf, len - offset))
+ return 0;
+ return 1;
}
#if HAVE_NET_IF_PPP_H
-static int
-handle_ppp(const u_char * pkt, int len)
-{
- char buf[PCAP_SNAPLEN];
- unsigned short us;
- unsigned short proto;
- if (len < 2)
- return 0;
- if (*pkt == PPP_ADDRESS_VAL && *(pkt + 1) == PPP_CONTROL_VAL) {
- pkt += 2; /* ACFC not used */
- len -= 2;
- }
- if (len < 2)
- return 0;
- if (*pkt % 2) {
- proto = *pkt; /* PFC is used */
- pkt++;
- len--;
- } else {
- memcpy(&us, pkt, sizeof(us));
- proto = ntohs(us);
- pkt += 2;
- len -= 2;
- }
- if (ETHERTYPE_IP != proto && PPP_IP != proto)
- return 0;
- memcpy(buf, pkt, len);
- return handle_ip((struct ip *) buf, len);
+static int handle_ppp(const u_char *pkt, int len) {
+ char buf[PCAP_SNAPLEN];
+ unsigned short us;
+ unsigned short proto;
+ if (len < 2)
+ return 0;
+ if (*pkt == PPP_ADDRESS_VAL && *(pkt + 1) == PPP_CONTROL_VAL) {
+ pkt += 2; /* ACFC not used */
+ len -= 2;
+ }
+ if (len < 2)
+ return 0;
+ if (*pkt % 2) {
+ proto = *pkt; /* PFC is used */
+ pkt++;
+ len--;
+ } else {
+ memcpy(&us, pkt, sizeof(us));
+ proto = ntohs(us);
+ pkt += 2;
+ len -= 2;
+ }
+ if (ETHERTYPE_IP != proto && PPP_IP != proto)
+ return 0;
+ memcpy(buf, pkt, len);
+ return handle_ip((struct ip *)buf, len);
}
#endif /* HAVE_NET_IF_PPP_H */
-static int
-handle_null(const u_char * pkt, int len)
-{
- unsigned int family;
- memcpy(&family, pkt, sizeof(family));
- if (AF_INET != family)
- return 0;
- return handle_ip((struct ip *) (pkt + 4), len - 4);
+static int handle_null(const u_char *pkt, int len) {
+ unsigned int family;
+ memcpy(&family, pkt, sizeof(family));
+ if (AF_INET != family)
+ return 0;
+ return handle_ip((struct ip *)(pkt + 4), len - 4);
}
#ifdef DLT_LOOP
-static int
-handle_loop(const u_char * pkt, int len)
-{
- unsigned int family;
- memcpy(&family, pkt, sizeof(family));
- if (AF_INET != ntohl(family))
- return 0;
- return handle_ip((struct ip *) (pkt + 4), len - 4);
+static int handle_loop(const u_char *pkt, int len) {
+ unsigned int family;
+ memcpy(&family, pkt, sizeof(family));
+ if (AF_INET != ntohl(family))
+ return 0;
+ return handle_ip((struct ip *)(pkt + 4), len - 4);
}
#endif
#ifdef DLT_RAW
-static int
-handle_raw(const u_char * pkt, int len)
-{
- return handle_ip((struct ip *) pkt, len);
+static int handle_raw(const u_char *pkt, int len) {
+ return handle_ip((struct ip *)pkt, len);
}
#endif
-static int
-handle_ether(const u_char * pkt, int len)
-{
- char buf[PCAP_SNAPLEN];
- struct ether_header *e = (void *) pkt;
- unsigned short etype = ntohs(e->ether_type);
- if (len < ETHER_HDR_LEN)
- return 0;
- pkt += ETHER_HDR_LEN;
- len -= ETHER_HDR_LEN;
- if (ETHERTYPE_8021Q == etype) {
- etype = ntohs(*(unsigned short *) (pkt + 2));
- pkt += 4;
- len -= 4;
- }
- if ((ETHERTYPE_IP != etype)
- && (ETHERTYPE_IPV6 != etype))
- return 0;
- memcpy(buf, pkt, len);
- if (ETHERTYPE_IPV6 == etype)
- return (handle_ipv6 ((void *) buf, len));
- else
- return handle_ip((struct ip *) buf, len);
+static int handle_ether(const u_char *pkt, int len) {
+ char buf[PCAP_SNAPLEN];
+ struct ether_header *e = (void *)pkt;
+ unsigned short etype = ntohs(e->ether_type);
+ if (len < ETHER_HDR_LEN)
+ return 0;
+ pkt += ETHER_HDR_LEN;
+ len -= ETHER_HDR_LEN;
+ if (ETHERTYPE_8021Q == etype) {
+ etype = ntohs(*(unsigned short *)(pkt + 2));
+ pkt += 4;
+ len -= 4;
+ }
+ if ((ETHERTYPE_IP != etype) && (ETHERTYPE_IPV6 != etype))
+ return 0;
+ memcpy(buf, pkt, len);
+ if (ETHERTYPE_IPV6 == etype)
+ return handle_ipv6((void *)buf, len);
+ else
+ return handle_ip((struct ip *)buf, len);
}
#ifdef DLT_LINUX_SLL
-static int
-handle_linux_sll (const u_char *pkt, int len)
-{
- struct sll_header
- {
- uint16_t pkt_type;
- uint16_t dev_type;
- uint16_t addr_len;
- uint8_t addr[8];
- uint16_t proto_type;
- } *hdr;
- uint16_t etype;
-
- if ((0 > len) || ((unsigned int)len < sizeof (struct sll_header)))
- return (0);
-
- hdr = (struct sll_header *) pkt;
- pkt = (u_char *) (hdr + 1);
- len -= sizeof (struct sll_header);
-
- etype = ntohs (hdr->proto_type);
-
- if ((ETHERTYPE_IP != etype)
- && (ETHERTYPE_IPV6 != etype))
- return 0;
-
- if (ETHERTYPE_IPV6 == etype)
- return (handle_ipv6 ((void *) pkt, len));
- else
- return handle_ip((struct ip *) pkt, len);
+static int handle_linux_sll(const u_char *pkt, int len) {
+ struct sll_header {
+ uint16_t pkt_type;
+ uint16_t dev_type;
+ uint16_t addr_len;
+ uint8_t addr[8];
+ uint16_t proto_type;
+ } * hdr;
+ uint16_t etype;
+
+ if ((0 > len) || ((unsigned int)len < sizeof(struct sll_header)))
+ return 0;
+
+ hdr = (struct sll_header *)pkt;
+ pkt = (u_char *)(hdr + 1);
+ len -= sizeof(struct sll_header);
+
+ etype = ntohs(hdr->proto_type);
+
+ if ((ETHERTYPE_IP != etype) && (ETHERTYPE_IPV6 != etype))
+ return 0;
+
+ if (ETHERTYPE_IPV6 == etype)
+ return handle_ipv6((void *)pkt, len);
+ else
+ return handle_ip((struct ip *)pkt, len);
}
#endif /* DLT_LINUX_SLL */
/* public function */
-void handle_pcap(u_char *udata, const struct pcap_pkthdr *hdr, const u_char *pkt)
-{
- int status;
+void handle_pcap(u_char *udata, const struct pcap_pkthdr *hdr,
+ const u_char *pkt) {
+ int status;
- if (hdr->caplen < ETHER_HDR_LEN)
- return;
+ if (hdr->caplen < ETHER_HDR_LEN)
+ return;
- switch (pcap_datalink (pcap_obj))
- {
- case DLT_EN10MB:
- status = handle_ether (pkt, hdr->caplen);
- break;
+ switch (pcap_datalink(pcap_obj)) {
+ case DLT_EN10MB:
+ status = handle_ether(pkt, hdr->caplen);
+ break;
#if HAVE_NET_IF_PPP_H
- case DLT_PPP:
- status = handle_ppp (pkt, hdr->caplen);
- break;
+ case DLT_PPP:
+ status = handle_ppp(pkt, hdr->caplen);
+ break;
#endif
#ifdef DLT_LOOP
- case DLT_LOOP:
- status = handle_loop (pkt, hdr->caplen);
- break;
+ case DLT_LOOP:
+ status = handle_loop(pkt, hdr->caplen);
+ break;
#endif
#ifdef DLT_RAW
- case DLT_RAW:
- status = handle_raw (pkt, hdr->caplen);
- break;
+ case DLT_RAW:
+ status = handle_raw(pkt, hdr->caplen);
+ break;
#endif
#ifdef DLT_LINUX_SLL
- case DLT_LINUX_SLL:
- status = handle_linux_sll (pkt, hdr->caplen);
- break;
+ case DLT_LINUX_SLL:
+ status = handle_linux_sll(pkt, hdr->caplen);
+ break;
#endif
- case DLT_NULL:
- status = handle_null (pkt, hdr->caplen);
- break;
-
- default:
- ERROR ("handle_pcap: unsupported data link type %d",
- pcap_datalink(pcap_obj));
- status = 0;
- break;
- } /* switch (pcap_datalink(pcap_obj)) */
-
- if (0 == status)
- return;
-
- query_count_intvl++;
- query_count_total++;
- last_ts = hdr->ts;
+ case DLT_NULL:
+ status = handle_null(pkt, hdr->caplen);
+ break;
+
+ default:
+ ERROR("handle_pcap: unsupported data link type %d",
+ pcap_datalink(pcap_obj));
+ status = 0;
+ break;
+ } /* switch (pcap_datalink(pcap_obj)) */
+
+ if (0 == status)
+ return;
+
+ query_count_intvl++;
+ query_count_total++;
+ last_ts = hdr->ts;
}
#endif /* HAVE_PCAP_H */
-const char *qtype_str(int t)
-{
- static char buf[32];
- switch (t) {
-#if (defined (__NAMESER)) && (__NAMESER >= 19991001)
- case ns_t_a: return ("A");
- case ns_t_ns: return ("NS");
- case ns_t_md: return ("MD");
- case ns_t_mf: return ("MF");
- case ns_t_cname: return ("CNAME");
- case ns_t_soa: return ("SOA");
- case ns_t_mb: return ("MB");
- case ns_t_mg: return ("MG");
- case ns_t_mr: return ("MR");
- case ns_t_null: return ("NULL");
- case ns_t_wks: return ("WKS");
- case ns_t_ptr: return ("PTR");
- case ns_t_hinfo: return ("HINFO");
- case ns_t_minfo: return ("MINFO");
- case ns_t_mx: return ("MX");
- case ns_t_txt: return ("TXT");
- case ns_t_rp: return ("RP");
- case ns_t_afsdb: return ("AFSDB");
- case ns_t_x25: return ("X25");
- case ns_t_isdn: return ("ISDN");
- case ns_t_rt: return ("RT");
- case ns_t_nsap: return ("NSAP");
- case ns_t_nsap_ptr: return ("NSAP-PTR");
- case ns_t_sig: return ("SIG");
- case ns_t_key: return ("KEY");
- case ns_t_px: return ("PX");
- case ns_t_gpos: return ("GPOS");
- case ns_t_aaaa: return ("AAAA");
- case ns_t_loc: return ("LOC");
- case ns_t_nxt: return ("NXT");
- case ns_t_eid: return ("EID");
- case ns_t_nimloc: return ("NIMLOC");
- case ns_t_srv: return ("SRV");
- case ns_t_atma: return ("ATMA");
- case ns_t_naptr: return ("NAPTR");
- case ns_t_kx: return ("KX");
- case ns_t_cert: return ("CERT");
- case ns_t_a6: return ("A6");
- case ns_t_dname: return ("DNAME");
- case ns_t_sink: return ("SINK");
- case ns_t_opt: return ("OPT");
-# if __NAMESER >= 19991006
- case ns_t_tsig: return ("TSIG");
-# endif
- case ns_t_ixfr: return ("IXFR");
- case ns_t_axfr: return ("AXFR");
- case ns_t_mailb: return ("MAILB");
- case ns_t_maila: return ("MAILA");
- case ns_t_any: return ("ANY");
- case ns_t_zxfr: return ("ZXFR");
-/* #endif __NAMESER >= 19991006 */
-#elif (defined (__BIND)) && (__BIND >= 19950621)
- case T_A: return ("A"); /* 1 ... */
- case T_NS: return ("NS");
- case T_MD: return ("MD");
- case T_MF: return ("MF");
- case T_CNAME: return ("CNAME");
- case T_SOA: return ("SOA");
- case T_MB: return ("MB");
- case T_MG: return ("MG");
- case T_MR: return ("MR");
- case T_NULL: return ("NULL");
- case T_WKS: return ("WKS");
- case T_PTR: return ("PTR");
- case T_HINFO: return ("HINFO");
- case T_MINFO: return ("MINFO");
- case T_MX: return ("MX");
- case T_TXT: return ("TXT");
- case T_RP: return ("RP");
- case T_AFSDB: return ("AFSDB");
- case T_X25: return ("X25");
- case T_ISDN: return ("ISDN");
- case T_RT: return ("RT");
- case T_NSAP: return ("NSAP");
- case T_NSAP_PTR: return ("NSAP_PTR");
- case T_SIG: return ("SIG");
- case T_KEY: return ("KEY");
- case T_PX: return ("PX");
- case T_GPOS: return ("GPOS");
- case T_AAAA: return ("AAAA");
- case T_LOC: return ("LOC");
- case T_NXT: return ("NXT");
- case T_EID: return ("EID");
- case T_NIMLOC: return ("NIMLOC");
- case T_SRV: return ("SRV");
- case T_ATMA: return ("ATMA");
- case T_NAPTR: return ("NAPTR"); /* ... 35 */
+const char *qtype_str(int t) {
+ static char buf[32];
+ switch (t) {
+#if (defined(__NAMESER)) && (__NAMESER >= 19991001)
+ case ns_t_a:
+ return "A";
+ case ns_t_ns:
+ return "NS";
+ case ns_t_md:
+ return "MD";
+ case ns_t_mf:
+ return "MF";
+ case ns_t_cname:
+ return "CNAME";
+ case ns_t_soa:
+ return "SOA";
+ case ns_t_mb:
+ return "MB";
+ case ns_t_mg:
+ return "MG";
+ case ns_t_mr:
+ return "MR";
+ case ns_t_null:
+ return "NULL";
+ case ns_t_wks:
+ return "WKS";
+ case ns_t_ptr:
+ return "PTR";
+ case ns_t_hinfo:
+ return "HINFO";
+ case ns_t_minfo:
+ return "MINFO";
+ case ns_t_mx:
+ return "MX";
+ case ns_t_txt:
+ return "TXT";
+ case ns_t_rp:
+ return "RP";
+ case ns_t_afsdb:
+ return "AFSDB";
+ case ns_t_x25:
+ return "X25";
+ case ns_t_isdn:
+ return "ISDN";
+ case ns_t_rt:
+ return "RT";
+ case ns_t_nsap:
+ return "NSAP";
+ case ns_t_nsap_ptr:
+ return "NSAP-PTR";
+ case ns_t_sig:
+ return "SIG";
+ case ns_t_key:
+ return "KEY";
+ case ns_t_px:
+ return "PX";
+ case ns_t_gpos:
+ return "GPOS";
+ case ns_t_aaaa:
+ return "AAAA";
+ case ns_t_loc:
+ return "LOC";
+ case ns_t_nxt:
+ return "NXT";
+ case ns_t_eid:
+ return "EID";
+ case ns_t_nimloc:
+ return "NIMLOC";
+ case ns_t_srv:
+ return "SRV";
+ case ns_t_atma:
+ return "ATMA";
+ case ns_t_naptr:
+ return "NAPTR";
+ case ns_t_opt:
+ return "OPT";
+#if __NAMESER >= 19991006
+ case ns_t_kx:
+ return "KX";
+ case ns_t_cert:
+ return "CERT";
+ case ns_t_a6:
+ return "A6";
+ case ns_t_dname:
+ return "DNAME";
+ case ns_t_sink:
+ return "SINK";
+ case ns_t_tsig:
+ return "TSIG";
+#endif
+#if __NAMESER >= 20090302
+ case ns_t_apl:
+ return "APL";
+ case ns_t_ds:
+ return "DS";
+ case ns_t_sshfp:
+ return "SSHFP";
+ case ns_t_ipseckey:
+ return "IPSECKEY";
+ case ns_t_rrsig:
+ return "RRSIG";
+ case ns_t_nsec:
+ return "NSEC";
+ case ns_t_dnskey:
+ return "DNSKEY";
+ case ns_t_dhcid:
+ return "DHCID";
+ case ns_t_nsec3:
+ return "NSEC3";
+ case ns_t_nsec3param:
+ return "NSEC3PARAM";
+ case ns_t_hip:
+ return "HIP";
+ case ns_t_spf:
+ return "SPF";
+ case ns_t_ixfr:
+ return "IXFR";
+#endif
+ case ns_t_axfr:
+ return "AXFR";
+ case ns_t_mailb:
+ return "MAILB";
+ case ns_t_maila:
+ return "MAILA";
+ case ns_t_any:
+ return "ANY";
+#if __NAMESER >= 19991006
+ case ns_t_zxfr:
+ return "ZXFR";
+#endif
+#if __NAMESER >= 20090302
+ case ns_t_dlv:
+ return "DLV";
+#endif
+/* #endif __NAMESER >= 19991001 */
+#elif (defined(__BIND)) && (__BIND >= 19950621)
+ case T_A:
+ return "A"; /* 1 ... */
+ case T_NS:
+ return "NS";
+ case T_MD:
+ return "MD";
+ case T_MF:
+ return "MF";
+ case T_CNAME:
+ return "CNAME";
+ case T_SOA:
+ return "SOA";
+ case T_MB:
+ return "MB";
+ case T_MG:
+ return "MG";
+ case T_MR:
+ return "MR";
+ case T_NULL:
+ return "NULL";
+ case T_WKS:
+ return "WKS";
+ case T_PTR:
+ return "PTR";
+ case T_HINFO:
+ return "HINFO";
+ case T_MINFO:
+ return "MINFO";
+ case T_MX:
+ return "MX";
+ case T_TXT:
+ return "TXT";
+ case T_RP:
+ return "RP";
+ case T_AFSDB:
+ return "AFSDB";
+ case T_X25:
+ return "X25";
+ case T_ISDN:
+ return "ISDN";
+ case T_RT:
+ return "RT";
+ case T_NSAP:
+ return "NSAP";
+ case T_NSAP_PTR:
+ return "NSAP_PTR";
+ case T_SIG:
+ return "SIG";
+ case T_KEY:
+ return "KEY";
+ case T_PX:
+ return "PX";
+ case T_GPOS:
+ return "GPOS";
+ case T_AAAA:
+ return "AAAA";
+ case T_LOC:
+ return "LOC";
+ case T_NXT:
+ return "NXT";
+ case T_EID:
+ return "EID";
+ case T_NIMLOC:
+ return "NIMLOC";
+ case T_SRV:
+ return "SRV";
+ case T_ATMA:
+ return "ATMA";
+ case T_NAPTR:
+ return "NAPTR"; /* ... 35 */
#if (__BIND >= 19960801)
- case T_KX: return ("KX"); /* 36 ... */
- case T_CERT: return ("CERT");
- case T_A6: return ("A6");
- case T_DNAME: return ("DNAME");
- case T_SINK: return ("SINK");
- case T_OPT: return ("OPT");
- case T_APL: return ("APL");
- case T_DS: return ("DS");
- case T_SSHFP: return ("SSHFP");
- case T_RRSIG: return ("RRSIG");
- case T_NSEC: return ("NSEC");
- case T_DNSKEY: return ("DNSKEY"); /* ... 48 */
- case T_TKEY: return ("TKEY"); /* 249 */
+ case T_KX:
+ return "KX"; /* 36 ... */
+ case T_CERT:
+ return "CERT";
+ case T_A6:
+ return "A6";
+ case T_DNAME:
+ return "DNAME";
+ case T_SINK:
+ return "SINK";
+ case T_OPT:
+ return "OPT";
+ case T_APL:
+ return "APL";
+ case T_DS:
+ return "DS";
+ case T_SSHFP:
+ return "SSHFP";
+ case T_RRSIG:
+ return "RRSIG";
+ case T_NSEC:
+ return "NSEC";
+ case T_DNSKEY:
+ return "DNSKEY"; /* ... 48 */
+ case T_TKEY:
+ return "TKEY"; /* 249 */
#endif /* __BIND >= 19960801 */
- case T_TSIG: return ("TSIG"); /* 250 ... */
- case T_IXFR: return ("IXFR");
- case T_AXFR: return ("AXFR");
- case T_MAILB: return ("MAILB");
- case T_MAILA: return ("MAILA");
- case T_ANY: return ("ANY"); /* ... 255 */
+ case T_TSIG:
+ return "TSIG"; /* 250 ... */
+ case T_IXFR:
+ return "IXFR";
+ case T_AXFR:
+ return "AXFR";
+ case T_MAILB:
+ return "MAILB";
+ case T_MAILA:
+ return "MAILA";
+ case T_ANY:
+ return "ANY"; /* ... 255 */
#endif /* __BIND >= 19950621 */
- default:
- ssnprintf (buf, sizeof (buf), "#%i", t);
- return (buf);
- }; /* switch (t) */
- /* NOTREACHED */
- return (NULL);
+ default:
+ snprintf(buf, sizeof(buf), "#%i", t);
+ return buf;
+ } /* switch (t) */
}
-const char *opcode_str (int o)
-{
- static char buf[30];
- switch (o) {
- case 0:
- return "Query";
- break;
- case 1:
- return "Iquery";
- break;
- case 2:
- return "Status";
- break;
- case 4:
- return "Notify";
- break;
- case 5:
- return "Update";
- break;
- default:
- ssnprintf(buf, sizeof (buf), "Opcode%d", o);
- return buf;
- }
- /* NOTREACHED */
+const char *opcode_str(int o) {
+ static char buf[30];
+ switch (o) {
+ case 0:
+ return "Query";
+ case 1:
+ return "Iquery";
+ case 2:
+ return "Status";
+ case 4:
+ return "Notify";
+ case 5:
+ return "Update";
+ default:
+ snprintf(buf, sizeof(buf), "Opcode%d", o);
+ return buf;
+ }
}
-const char *rcode_str (int rcode)
-{
- static char buf[32];
- switch (rcode)
- {
-#if (defined (__NAMESER)) && (__NAMESER >= 19991006)
- case ns_r_noerror: return ("NOERROR");
- case ns_r_formerr: return ("FORMERR");
- case ns_r_servfail: return ("SERVFAIL");
- case ns_r_nxdomain: return ("NXDOMAIN");
- case ns_r_notimpl: return ("NOTIMPL");
- case ns_r_refused: return ("REFUSED");
- case ns_r_yxdomain: return ("YXDOMAIN");
- case ns_r_yxrrset: return ("YXRRSET");
- case ns_r_nxrrset: return ("NXRRSET");
- case ns_r_notauth: return ("NOTAUTH");
- case ns_r_notzone: return ("NOTZONE");
- case ns_r_max: return ("MAX");
- case ns_r_badsig: return ("BADSIG");
- case ns_r_badkey: return ("BADKEY");
- case ns_r_badtime: return ("BADTIME");
+const char *rcode_str(int rcode) {
+ static char buf[32];
+ switch (rcode) {
+#if (defined(__NAMESER)) && (__NAMESER >= 19991006)
+ case ns_r_noerror:
+ return "NOERROR";
+ case ns_r_formerr:
+ return "FORMERR";
+ case ns_r_servfail:
+ return "SERVFAIL";
+ case ns_r_nxdomain:
+ return "NXDOMAIN";
+ case ns_r_notimpl:
+ return "NOTIMPL";
+ case ns_r_refused:
+ return "REFUSED";
+ case ns_r_yxdomain:
+ return "YXDOMAIN";
+ case ns_r_yxrrset:
+ return "YXRRSET";
+ case ns_r_nxrrset:
+ return "NXRRSET";
+ case ns_r_notauth:
+ return "NOTAUTH";
+ case ns_r_notzone:
+ return "NOTZONE";
+ case ns_r_max:
+ return "MAX";
+ case ns_r_badsig:
+ return "BADSIG";
+ case ns_r_badkey:
+ return "BADKEY";
+ case ns_r_badtime:
+ return "BADTIME";
/* #endif __NAMESER >= 19991006 */
-#elif (defined (__BIND)) && (__BIND >= 19950621)
- case NOERROR: return ("NOERROR");
- case FORMERR: return ("FORMERR");
- case SERVFAIL: return ("SERVFAIL");
- case NXDOMAIN: return ("NXDOMAIN");
- case NOTIMP: return ("NOTIMP");
- case REFUSED: return ("REFUSED");
-#if defined (YXDOMAIN) && defined (NXRRSET)
- case YXDOMAIN: return ("YXDOMAIN");
- case YXRRSET: return ("YXRRSET");
- case NXRRSET: return ("NXRRSET");
- case NOTAUTH: return ("NOTAUTH");
- case NOTZONE: return ("NOTZONE");
-#endif /* RFC2136 rcodes */
+#elif (defined(__BIND)) && (__BIND >= 19950621)
+ case NOERROR:
+ return "NOERROR";
+ case FORMERR:
+ return "FORMERR";
+ case SERVFAIL:
+ return "SERVFAIL";
+ case NXDOMAIN:
+ return "NXDOMAIN";
+ case NOTIMP:
+ return "NOTIMP";
+ case REFUSED:
+ return "REFUSED";
+#if defined(YXDOMAIN) && defined(NXRRSET)
+ case YXDOMAIN:
+ return "YXDOMAIN";
+ case YXRRSET:
+ return "YXRRSET";
+ case NXRRSET:
+ return "NXRRSET";
+ case NOTAUTH:
+ return "NOTAUTH";
+ case NOTZONE:
+ return "NOTZONE";
+#endif /* RFC2136 rcodes */
#endif /* __BIND >= 19950621 */
- default:
- ssnprintf (buf, sizeof (buf), "RCode%i", rcode);
- return (buf);
- }
- /* Never reached */
- return (NULL);
+ default:
+ snprintf(buf, sizeof(buf), "RCode%i", rcode);
+ return buf;
+ }
} /* const char *rcode_str (int rcode) */
#if 0
return 0;
} /* static int main(int argc, char *argv[]) */
#endif
-/*
- * vim:shiftwidth=4:tabstop=8:softtabstop=4
- */
projects / collectd.git / blobdiff