2 * collectd - src/utils_dns.h
3 * Copyright (C) 2006 Florian octo Forster
4 * Copyright (C) 2002 The Measurement Factory, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 * 3. Neither the name of The Measurement Factory nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 * The Measurement Factory, Inc. <http://www.measurement-factory.com/>
33 * Florian octo Forster <octo at collectd.org>
36 #ifndef COLLECTD_UTILS_DNS_H
37 #define COLLECTD_UTILS_DNS_H 1
41 #include <arpa/nameser.h>
48 #define DNS_MSG_HDR_SZ 12
51 #define MAX_QNAME_SZ 512
53 struct rfc1035_header_s {
56 unsigned int opcode : 4;
64 unsigned int rcode : 4;
71 char qname[MAX_QNAME_SZ];
74 typedef struct rfc1035_header_s rfc1035_header_t;
77 void dnstop_set_pcap_obj(pcap_t *po);
79 void dnstop_set_callback(void (*cb)(const rfc1035_header_t *));
81 void ignore_list_add_name(const char *name);
83 void handle_pcap(u_char *udata, const struct pcap_pkthdr *hdr,
87 const char *qtype_str(int t);
88 const char *opcode_str(int o);
89 const char *rcode_str(int r);
91 #endif /* !COLLECTD_UTILS_DNS_H */