#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>

Data Structures
struct	question

struct	resource

struct	message

Macros
#define	MAX_PACKET_LEN 65535

#define	MAX_NUM_LABELS 512

#define	QTYPE_A 1

#define	QTYPE_NS 2

#define	QTYPE_CNAME 5

#define	QTYPE_PTR 12

#define	QTYPE_TXT 16

#define	QTYPE_AAAA 28

#define	QTYPE_SRV 33

#define	QTYPE_ANY 255

Functions
unsigned short int	net2short (unsigned char **buf)

unsigned long int	net2long (unsigned char **buf)

void	short2net (unsigned short int i, unsigned char **buf)

void	long2net (unsigned long int l, unsigned char **buf)

int	message_parse (struct message m, unsigned char packet)

struct message *	message_wire (void)

void	message_qd (struct message m, char name, unsigned short int type, unsigned short int class)

void	message_an (struct message m, char name, unsigned short int type, unsigned short int class, unsigned long int ttl)

void	message_ns (struct message m, char name, unsigned short int type, unsigned short int class, unsigned long int ttl)

void	message_ar (struct message m, char name, unsigned short int type, unsigned short int class, unsigned long int ttl)

void	message_rdata_long (struct message *m, unsigned long l)

void	message_rdata_ipv4 (struct message *m, struct in_addr a)

void	message_rdata_ipv6 (struct message *m, struct in6_addr a6)

void	message_rdata_name (struct message m, char name)

void	message_rdata_srv (struct message m, unsigned short int priority, unsigned short int weight, unsigned short int port, char name)

void	message_rdata_raw (struct message m, unsigned char rdata, unsigned short int rdlength)

unsigned char *	message_packet (struct message *m)

int	message_packet_len (struct message *m)

Macro Definition Documentation

◆ MAX_NUM_LABELS

#define MAX_NUM_LABELS 512

Definition at line 56 of file 1035.h.

◆ MAX_PACKET_LEN

#define MAX_PACKET_LEN 65535

Standalone DNS parsing, RFC10350.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Familiarize yourself with RFC1035 if you want to know what all the variable names mean. This file hides most of the dirty work all of this code depends on the buffer space a packet is in being 4096 and zero'd before the packet is copied in also conveniently decodes srv rr's, type 33, see RFC2782 Should be reasonably large, for UDP

Definition at line 55 of file 1035.h.

◆ QTYPE_A

#define QTYPE_A 1

Definition at line 63 of file 1035.h.

◆ QTYPE_AAAA

#define QTYPE_AAAA 28

Definition at line 68 of file 1035.h.

◆ QTYPE_ANY

#define QTYPE_ANY 255

Definition at line 70 of file 1035.h.

◆ QTYPE_CNAME

#define QTYPE_CNAME 5

Definition at line 65 of file 1035.h.

◆ QTYPE_NS

#define QTYPE_NS 2

Definition at line 64 of file 1035.h.

◆ QTYPE_PTR

#define QTYPE_PTR 12

Definition at line 66 of file 1035.h.

◆ QTYPE_SRV

#define QTYPE_SRV 33

Definition at line 69 of file 1035.h.

◆ QTYPE_TXT

#define QTYPE_TXT 16

Definition at line 67 of file 1035.h.

Function Documentation

◆ long2net()

void long2net	(	unsigned long int	l,
		unsigned char **	buf
	)

◆ message_an()

void message_an	(	struct message *	m,
		char *	name,
		unsigned short int	type,
		unsigned short int	class,
		unsigned long int	ttl
	)

◆ message_ar()

void message_ar	(	struct message *	m,
		char *	name,
		unsigned short int	type,
		unsigned short int	class,
		unsigned long int	ttl
	)

◆ message_ns()

void message_ns	(	struct message *	m,
		char *	name,
		unsigned short int	type,
		unsigned short int	class,
		unsigned long int	ttl
	)

◆ message_packet()

unsigned char * message_packet ( struct message * m )

◆ message_packet_len()

int message_packet_len ( struct message * m )

◆ message_parse()

int message_parse	(	struct message *	m,
		unsigned char *	packet
	)

◆ message_qd()

void message_qd	(	struct message *	m,
		char *	name,
		unsigned short int	type,
		unsigned short int	class
	)

◆ message_rdata_ipv4()

void message_rdata_ipv4	(	struct message *	m,
		struct in_addr	a
	)

◆ message_rdata_ipv6()

void message_rdata_ipv6	(	struct message *	m,
		struct in6_addr	a6
	)

◆ message_rdata_long()

void message_rdata_long	(	struct message *	m,
		unsigned long	l
	)

◆ message_rdata_name()

void message_rdata_name	(	struct message *	m,
		char *	name
	)

◆ message_rdata_raw()

void message_rdata_raw	(	struct message *	m,
		unsigned char *	rdata,
		unsigned short int	rdlength
	)

◆ message_rdata_srv()

void message_rdata_srv	(	struct message *	m,
		unsigned short int	priority,
		unsigned short int	weight,
		unsigned short int	port,
		char *	name
	)

◆ message_wire()

struct message * message_wire ( void )

◆ net2long()

unsigned long int net2long ( unsigned char ** buf )

◆ net2short()

unsigned short int net2short ( unsigned char ** buf )

◆ short2net()

void short2net	(	unsigned short int	i,
		unsigned char **	buf
	)

Data Structures

Macros

Functions