Wireshark  4.3.0
The Wireshark network protocol analyzer
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 <gerald@wireshark.org>
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 
16 extern 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  */
27 int get_dns_name(tvbuff_t *tvb, int offset, int max_len, int dns_data_offset,
28  const gchar **name, gint* name_len);
29 
30 #define MAX_DNAME_LEN 255 /* maximum domain name length */
31 
32 #endif /* packet-dns.h */
Definition: value_string.h:26
Definition: tvbuff-int.h:35