Wireshark 4.5.0
The Wireshark network protocol analyzer
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packet-dns.h
1/* packet-dns.h
2 * Definitions for packet disassembly structures and routines used both by
3 * DNS and NBNS.
4 *
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <[email protected]>
7 * Copyright 1998 Gerald Combs
8 *
9 * SPDX-License-Identifier: GPL-2.0-or-later
10 */
11
12
13#ifndef __PACKET_DNS_H__
14#define __PACKET_DNS_H__
15
16extern const value_string dns_classes[];
17
18/*
19 * Expands DNS name from TVB into a byte string.
20 *
21 * Returns int: byte size of DNS data.
22 * Returns char *name: a dot (.) separated raw string of DNS domain name labels.
23 * This string is null terminated. Labels are copied directly from raw packet
24 * data without any validation for a string encoding. This is the callers responsibility.
25 * Return int name_len: byte length of "name".
26 */
27int get_dns_name(tvbuff_t *tvb, int offset, int max_len, int dns_data_offset,
28 const char **name, int* name_len);
29
30#define MAX_DNAME_LEN 255 /* maximum domain name length */
31
32#endif /* packet-dns.h */
Definition value_string.h:25
Definition tvbuff-int.h:35