mirror of
https://github.com/samba-team/samba.git
synced 2025-01-10 01:18:15 +03:00
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
|
|
Small async DNS library for Samba with socketwrapper support
|
|
|
|
Copyright (C) 2012 Kai Blin <kai@samba.org>
|
|
|
|
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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __LIBDNS_H__
|
|
#define __LIBDNS_H__
|
|
|
|
#include "lib/util/data_blob.h"
|
|
#include "lib/util/time.h"
|
|
#include "librpc/gen_ndr/dns.h"
|
|
|
|
/** Send an dns request to a dns server using UDP
|
|
*
|
|
*@param mem_ctx talloc memory context to use
|
|
*@param ev tevent context to use
|
|
*@param server_address address of the server as a string
|
|
*@param query dns query to send
|
|
*@param query_len length of the query
|
|
*@return tevent_req with the active request or NULL on out-of-memory
|
|
*/
|
|
struct tevent_req *dns_udp_request_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
const char *server_address,
|
|
const uint8_t *query,
|
|
size_t query_len);
|
|
|
|
/** Get the dns response from a dns server via UDP
|
|
*
|
|
*@param req tevent_req struct returned from dns_udp_request_send
|
|
*@param mem_ctx talloc memory context to use for the reply string
|
|
*@param reply buffer that will be allocated and filled with the dns reply
|
|
*@param reply_len length of the reply buffer
|
|
*@return 0/errno
|
|
*/
|
|
int dns_udp_request_recv(struct tevent_req *req,
|
|
TALLOC_CTX *mem_ctx,
|
|
uint8_t **reply,
|
|
size_t *reply_len);
|
|
|
|
struct tevent_req *dns_tcp_request_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
const char *server_addr_string,
|
|
const uint8_t *query,
|
|
size_t query_len);
|
|
int dns_tcp_request_recv(struct tevent_req *req,
|
|
TALLOC_CTX *mem_ctx,
|
|
uint8_t **reply,
|
|
size_t *reply_len);
|
|
|
|
/*
|
|
* DNS request with fallback to TCP on truncation
|
|
*/
|
|
|
|
struct tevent_req *dns_cli_request_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
const char *nameserver,
|
|
const char *name,
|
|
enum dns_qclass qclass,
|
|
enum dns_qtype qtype);
|
|
int dns_cli_request_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
|
|
struct dns_name_packet **reply);
|
|
|
|
|
|
#endif /*__LIBDNS_H__*/
|