dns.cpp File Reference

#include <seeder/dns.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <strings.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include <util/time.h>
#include <cctype>
#include <cstdbool>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>

Include dependency graph for dns.cpp:

Go to the source code of this file.

Classes
union	control_data

Macros
#define	BUFLEN   512

Enumerations
enum	dns_class { CLASS_IN = 1 , QCLASS_ANY = 255 }
enum	dns_type {   TYPE_A = 1 , TYPE_NS = 2 , TYPE_CNAME = 5 , TYPE_SOA = 6 ,   TYPE_MX = 15 , TYPE_AAAA = 28 , TYPE_SRV = 33 , QTYPE_ANY = 255 }
enum class	DNSResponseCode : uint8_t {   OK = 0 , FORMAT_ERROR = 1 , SERVER_FAILURE = 2 , NAME_ERROR = 3 ,   NOT_IMPLEMENTED = 4 , REFUSED = 5 }

Functions
ParseNameStatus	parse_name (const uint8_t **inpos, const uint8_t *inend, const uint8_t *inbuf, char *buf, size_t bufsize)
int	write_name (uint8_t **outpos, const uint8_t *outend, const char *name, int offset)
static int	write_record (uint8_t **outpos, const uint8_t *outend, const char *name, int offset, dns_type typ, dns_class cls, int ttl)
static int	write_record_a (uint8_t **outpos, const uint8_t *outend, const char *name, int offset, dns_class cls, int ttl, const addr_t *ip)
static int	write_record_aaaa (uint8_t **outpos, const uint8_t *outend, const char *name, int offset, dns_class cls, int ttl, const addr_t *ip)
static int	write_record_ns (uint8_t **outpos, const uint8_t *outend, const char *name, int offset, dns_class cls, int ttl, const char *ns)
static int	write_record_soa (uint8_t **outpos, const uint8_t *outend, const char *name, int offset, dns_class cls, int ttl, const char *mname, const char *rname, uint32_t serial, uint32_t refresh, uint32_t retry, uint32_t expire, uint32_t minimum)
static ssize_t	dnshandle (dns_opt_t *opt, const uint8_t *inbuf, size_t insize, uint8_t *outbuf)
int	dnsserver (dns_opt_t *opt)

Variables
static int	listenSocket = -1

Macro Definition Documentation

BUFLEN

#define BUFLEN   512

Definition at line 22 of file dns.cpp.

Enumeration Type Documentation

dns_class

enum dns_class

Enumerator
CLASS_IN
QCLASS_ANY

Definition at line 41 of file dns.cpp.

dns_type

enum dns_type

Enumerator
TYPE_A
TYPE_NS
TYPE_CNAME
TYPE_SOA
TYPE_MX
TYPE_AAAA
TYPE_SRV
QTYPE_ANY

Definition at line 46 of file dns.cpp.

DNSResponseCode

enum class DNSResponseCode : uint8_t

strong

Enumerator
OK
FORMAT_ERROR
SERVER_FAILURE
NAME_ERROR
NOT_IMPLEMENTED
REFUSED

Definition at line 57 of file dns.cpp.

Function Documentation

dnshandle()

static ssize_t dnshandle ( dns_opt_t *  opt, const uint8_t *  inbuf, size_t  insize, uint8_t *  outbuf  )

static

Definition at line 366 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

dnsserver()

int dnsserver

(

dns_opt_t *

opt

)

Definition at line 596 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

parse_name()

ParseNameStatus parse_name	(	const uint8_t **	inpos,
		const uint8_t *	inend,
		const uint8_t *	inbuf,
		char *	buf,
		size_t	bufsize
	)

Definition at line 66 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

write_name()

int write_name	(	uint8_t **	outpos,
		const uint8_t *	outend,
		const char *	name,
		int	offset
	)

Definition at line 132 of file dns.cpp.

Here is the caller graph for this function:

write_record()

static int write_record ( uint8_t **  outpos, const uint8_t *  outend, const char *  name, int  offset, dns_type  typ, dns_class  cls, int  ttl  )

static

Definition at line 173 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

write_record_a()

static int write_record_a ( uint8_t **  outpos, const uint8_t *  outend, const char *  name, int  offset, dns_class  cls, int  ttl, const addr_t *  ip  )

static

Definition at line 205 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

write_record_aaaa()

static int write_record_aaaa ( uint8_t **  outpos, const uint8_t *  outend, const char *  name, int  offset, dns_class  cls, int  ttl, const addr_t *  ip  )

static

Definition at line 234 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

write_record_ns()

static int write_record_ns ( uint8_t **  outpos, const uint8_t *  outend, const char *  name, int  offset, dns_class  cls, int  ttl, const char *  ns  )

static

Definition at line 263 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

write_record_soa()

static int write_record_soa ( uint8_t **  outpos, const uint8_t *  outend, const char *  name, int  offset, dns_class  cls, int  ttl, const char *  mname, const char *  rname, uint32_t  serial, uint32_t  refresh, uint32_t  retry, uint32_t  expire, uint32_t  minimum  )

static

Definition at line 298 of file dns.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

listenSocket

int listenSocket = -1

static

Definition at line 594 of file dns.cpp.