iter_donotq.c File Reference

This file contains functions to assist the iterator module. More...

#include "config.h"
#include "iterator/iter_donotq.h"
#include "util/regional.h"
#include "util/log.h"
#include "util/config_file.h"
#include "util/net_help.h"

Functions
struct iter_donotq *	donotq_create (void)
	Create donotqueryaddresses structure. More...
void	donotq_delete (struct iter_donotq *dq)
	Delete donotqueryaddresses structure. More...
static int	donotq_insert (struct iter_donotq *dq, struct sockaddr_storage *addr, socklen_t addrlen, int net)
	insert new address into donotq structure
static int	donotq_str_cfg (struct iter_donotq *dq, const char *str)
	apply donotq string
static int	read_donotq (struct iter_donotq *dq, struct config_file *cfg)
	read donotq config
int	donotq_apply_cfg (struct iter_donotq *dq, struct config_file *cfg)
	Process donotqueryaddresses config. More...
int	donotq_lookup (struct iter_donotq *donotq, struct sockaddr_storage *addr, socklen_t addrlen)
	See if an address is blocked. More...
size_t	donotq_get_mem (struct iter_donotq *donotq)
	Get memory used by donotqueryaddresses structure. More...

Detailed Description

This file contains functions to assist the iterator module.

The donotqueryaddresses are stored and looked up. These addresses (like 127.0.0.1) must not be used to send queries to, and can be discarded immediately from the server selection.

Function Documentation

donotq_create()

struct iter_donotq* donotq_create

(

void

)

Create donotqueryaddresses structure.

Returns

new structure or NULL on error.

References donotq_delete(), iter_donotq::region, and regional_create().

Referenced by iter_apply_cfg().

donotq_delete()

void donotq_delete

(

struct iter_donotq *

donotq

)

Delete donotqueryaddresses structure.

Parameters

donotq

to delete.

References iter_donotq::region, and regional_destroy().

Referenced by donotq_create(), and iter_deinit().

donotq_apply_cfg()

int donotq_apply_cfg	(	struct iter_donotq *	donotq,
		struct config_file *	cfg
	)

Process donotqueryaddresses config.

Parameters

donotq	where to store.
cfg	config options.

Returns

0 on error.

References addr_tree_init(), addr_tree_init_parents(), config_file::do_ip6, donotq_str_cfg(), config_file::donotquery_localhost, read_donotq(), iter_donotq::region, regional_free_all(), and iter_donotq::tree.

Referenced by iter_apply_cfg().

donotq_lookup()

int donotq_lookup	(	struct iter_donotq *	donotq,
		struct sockaddr_storage *	addr,
		socklen_t	addrlen
	)

See if an address is blocked.

Parameters

donotq	structure for address storage.
addr	address to check
addrlen	length of addr.

Returns

: true if the address must not be queried. false if unlisted.

References addr_tree_lookup(), and iter_donotq::tree.

Referenced by iter_filter_unsuitable().

donotq_get_mem()

size_t donotq_get_mem

(

struct iter_donotq *

donotq

)

Get memory used by donotqueryaddresses structure.

Parameters

donotq

structure for address storage.

Returns

bytes in use.

References iter_donotq::region, and regional_get_mem().