apps/resolv/resolv.h File Reference

Detailed Description

DNS resolver code header file.

Author:
Adam Dunkels <adam@dunkels.com>

Definition in file resolv.h.

#include "uipopt.h"

Go to the source code of this file.

Appication specific configurations

An uIP application is implemented using a single application function that is called by uIP whenever a TCP/IP event occurs. The name of this function must be registered with uIP at compile time using the UIP_APPCALL definition.

uIP applications can store the application state within the uip_conn structure by specifying the type of the application structure by typedef:ing the type uip_tcp_appstate_t and uip_udp_appstate_t.

The file containing the definitions must be included in the uipopt.h file.

The following example illustrates how this can look. 

void httpd_appcall(void);
#define UIP_APPCALL     httpd_appcall

struct httpd_state {
  u8_t state;
  u16_t count;
  char *dataptr;
  char *script;
};
typedef struct httpd_state uip_tcp_appstate_t


typedef int uip_udp_appstate_t
 The type of the application state that is to be stored in the uip_conn structure.

Defines

#define UIP_UDP_APPCALL   resolv_appcall

Functions

void resolv_appcall (void)
void resolv_found (char *name, u16_t *ipaddr)
 Callback function which is called when a hostname is found.
void resolv_conf (u16_t *dnsserver)
 Configure which DNS server to use for queries.
u16_t * resolv_getserver (void)
 Obtain the currently configured DNS server.
void resolv_init (void)
 Initalize the resolver.
u16_t * resolv_lookup (char *name)
 Look up a hostname in the array of known hostnames.
void resolv_query (char *name)
 Queues a name so that a question for the name will be sent out.

Generated on Mon Jun 12 10:23:01 2006 for uIP 1.0 by  doxygen 1.4.6