dnsquery.h File Reference

DNS query API

purple. More...

#include <glib.h>
#include "eventloop.h"
#include "account.h"

Include dependency graph for dnsquery.h:

Go to the source code of this file.

Data Structures

struct  PurpleDnsQueryUiOps
 DNS Request UI operations. More...

DNS query API

PurpleDnsQueryData * purple_dnsquery_a (const char *hostname, int port, PurpleDnsQueryConnectFunction callback, gpointer data)
 Perform an asynchronous DNS query.
void purple_dnsquery_destroy (PurpleDnsQueryData *query_data)
 Cancel a DNS query and destroy the associated data structure.
void purple_dnsquery_set_ui_ops (PurpleDnsQueryUiOps *ops)
 Sets the UI operations structure to be used when doing a DNS resolve.
PurpleDnsQueryUiOpspurple_dnsquery_get_ui_ops (void)
 Returns the UI operations structure to be used when doing a DNS resolve.
char * purple_dnsquery_get_host (PurpleDnsQueryData *query_data)
 Get the host associated with a PurpleDnsQueryData.
unsigned short purple_dnsquery_get_port (PurpleDnsQueryData *query_data)
 Get the port associated with a PurpleDnsQueryData.
void purple_dnsquery_init (void)
 Initializes the DNS query subsystem.
void purple_dnsquery_uninit (void)
 Uninitializes the DNS query subsystem.

Typedefs

typedef _PurpleDnsQueryData PurpleDnsQueryData
typedef void(* PurpleDnsQueryConnectFunction )(GSList *hosts, gpointer data, const char *error_message)
 The "hosts" parameter is a linked list containing pairs of one size_t addrlen and one struct sockaddr *addr.
typedef void(* PurpleDnsQueryResolvedCallback )(PurpleDnsQueryData *query_data, GSList *hosts)
 Callbacks used by the UI if it handles resolving DNS.
typedef void(* PurpleDnsQueryFailedCallback )(PurpleDnsQueryData *query_data, const gchar *error_message)


Detailed Description

DNS query API

purple.

Purple is the legal property of its developers, whose names are too numerous to list here. Please refer to the COPYRIGHT file distributed with this source distribution.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA


Typedef Documentation

typedef void(* PurpleDnsQueryConnectFunction)(GSList *hosts, gpointer data, const char *error_message)
 

The "hosts" parameter is a linked list containing pairs of one size_t addrlen and one struct sockaddr *addr.

It should be free'd by the callback function.


Function Documentation

PurpleDnsQueryData* purple_dnsquery_a const char *  hostname,
int  port,
PurpleDnsQueryConnectFunction  callback,
gpointer  data
 

Perform an asynchronous DNS query.

Parameters:
hostname The hostname to resolve.
port A port number which is stored in the struct sockaddr.
callback The callback function to call after resolving.
data Extra data to pass to the callback function.
Returns:
NULL if there was an error, otherwise return a reference to a data structure that can be used to cancel the pending DNS query, if needed.

void purple_dnsquery_destroy PurpleDnsQueryData *  query_data  ) 
 

Cancel a DNS query and destroy the associated data structure.

Parameters:
query_data The DNS query to cancel. This data structure is freed by this function.

char* purple_dnsquery_get_host PurpleDnsQueryData *  query_data  ) 
 

Get the host associated with a PurpleDnsQueryData.

Parameters:
query_data The DNS query
Returns:
The host.

unsigned short purple_dnsquery_get_port PurpleDnsQueryData *  query_data  ) 
 

Get the port associated with a PurpleDnsQueryData.

Parameters:
query_data The DNS query
Returns:
The port.

PurpleDnsQueryUiOps* purple_dnsquery_get_ui_ops void   ) 
 

Returns the UI operations structure to be used when doing a DNS resolve.

Returns:
The UI operations structure.

void purple_dnsquery_set_ui_ops PurpleDnsQueryUiOps ops  ) 
 

Sets the UI operations structure to be used when doing a DNS resolve.

The UI operations need only be set if the UI wants to handle the resolve itself; otherwise, leave it as NULL.

Parameters:
ops The UI operations structure.