resolv.h File Reference

uIP DNS resolver code header file.

Author

Adam Dunkels adam@.nosp@m.dunk.nosp@m.els.c.nosp@m.om

#include "contiki.h"
#include "uip.h"

Macros
#define	RESOLV_CONF_SUPPORTS_MDNS   (1)
	If RESOLV_CONF_SUPPORTS_MDNS is set, then queries for domain names in the local TLD will use MDNS and will respond to MDNS queries for this device's hostname, as described by draft-cheshire-dnsext-multicastdns. More...

Typedefs
typedef uint8_t	resolv_status_t

Enumerations
enum	{   RESOLV_STATUS_CACHED = 0,   RESOLV_STATUS_UNCACHED,   RESOLV_STATUS_EXPIRED,   RESOLV_STATUS_NOT_FOUND,   RESOLV_STATUS_RESOLVING,   RESOLV_STATUS_ERROR }

Functions
	PROCESS_NAME (resolv_process)
CCIF void	resolv_conf (const uip_ipaddr_t *dnsserver)
CCIF const char *	resolv_get_hostname (void)
CCIF uip_ipaddr_t *	resolv_getserver (void)
CCIF resolv_status_t	resolv_lookup (const char *name, uip_ipaddr_t **ipaddr)
CCIF void	resolv_query (const char *name)
CCIF void	resolv_set_hostname (const char *hostname)

Variables
CCIF process_event_t	resolv_event_found
	Event that is broadcasted when a DNS name has been resolved. More...

#define RESOLV_CONF_SUPPORTS_MDNS   (1)

If RESOLV_CONF_SUPPORTS_MDNS is set, then queries for domain names in the local TLD will use MDNS and will respond to MDNS queries for this device's hostname, as described by draft-cheshire-dnsext-multicastdns.

typedef uint8_t resolv_status_t

anonymous enum

Enumerator
RESOLV_STATUS_CACHED	Hostname is fresh and usable. This response is cached and will eventually expire to RESOLV_STATUS_EXPIRED.
RESOLV_STATUS_UNCACHED	Hostname was not found in the cache. Use resolv_query() to look it up.
RESOLV_STATUS_EXPIRED	Hostname was found, but it's status has expired. The address returned should not be used. Use resolv_query() to freshen it up.
RESOLV_STATUS_NOT_FOUND	The server has returned a not-found response for this domain name. This response is cached for the period described in the server. You may issue a new query at any time using resolv_query(), but you will generally want to wait until this domain's status becomes RESOLV_STATUS_EXPIRED.
RESOLV_STATUS_RESOLVING	This hostname is in the process of being resolved. Try again soon.
RESOLV_STATUS_ERROR	Some sort of server error was encountered while trying to look up this record. This response is cached and will eventually expire to RESOLV_STATUS_EXPIRED.

PROCESS_NAME

(

resolv_process

)

CCIF void resolv_conf

(

const uip_ipaddr_t *

dnsserver

)

CCIF const char* resolv_get_hostname

(

void

)

CCIF uip_ipaddr_t* resolv_getserver

(

void

)

CCIF resolv_status_t resolv_lookup	(	const char *	name,
		uip_ipaddr_t **	ipaddr
	)

CCIF void resolv_query

(

const char *

name

)

CCIF void resolv_set_hostname

(

const char *

hostname

)

CCIF process_event_t resolv_event_found

Event that is broadcasted when a DNS name has been resolved.