mbed-os/features/netsocket/nsapi_dns.h

184 lines
7.3 KiB
C++

/** \addtogroup netsocket */
/** @{*/
/* nsapi_dns.h
* Original work Copyright (c) 2013 Henry Leinen (henry[dot]leinen [at] online [dot] de)
* Modified work Copyright (c) 2015 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef NSAPI_DNS_H
#define NSAPI_DNS_H
#include "nsapi_types.h"
#ifdef __cplusplus
#include "netsocket/NetworkStack.h"
#endif
#ifndef __cplusplus
/** Query a domain name server for an IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Destination for the host address
* @param version IP version to resolve
* @return 0 on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
nsapi_error_t nsapi_dns_query(nsapi_stack_t *stack, const char *host,
nsapi_addr_t *addr, nsapi_version_t version);
/** Query a domain name server for multiple IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Array for the host addresses
* @param addr_count Number of addresses allocated in the array
* @param version IP version to resolve
* @return Number of addresses found on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
nsapi_size_or_error_t nsapi_dns_query_multiple(nsapi_stack_t *stack, const char *host,
nsapi_addr_t *addr, nsapi_size_t addr_count, nsapi_version_t version);
/** Add a domain name server to list of servers to query
*
* @param addr Destination for the host address
* @return 0 on success, negative error code on failure
*/
nsapi_error_t nsapi_dns_add_server(nsapi_addr_t addr);
#else
/** Query a domain name server for an IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Destination for the host address
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return 0 on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
nsapi_error_t nsapi_dns_query(NetworkStack *stack, const char *host,
SocketAddress *addr, nsapi_version_t version = NSAPI_IPv4);
/** Query a domain name server for an IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Destination for the host address
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return 0 on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
extern "C" nsapi_error_t nsapi_dns_query(nsapi_stack_t *stack, const char *host,
nsapi_addr_t *addr, nsapi_version_t version = NSAPI_IPv4);
/** Query a domain name server for an IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Destination for the host address
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return 0 on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
template <typename S>
nsapi_error_t nsapi_dns_query(S *stack, const char *host,
SocketAddress *addr, nsapi_version_t version = NSAPI_IPv4)
{
return nsapi_dns_query(nsapi_create_stack(stack), host, addr, version);
}
/** Query a domain name server for multiple IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Array for the host addresses
* @param addr_count Number of addresses allocated in the array
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return Number of addresses found on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
nsapi_size_or_error_t nsapi_dns_query_multiple(NetworkStack *stack, const char *host,
SocketAddress *addr, nsapi_size_t addr_count, nsapi_version_t version = NSAPI_IPv4);
/** Query a domain name server for multiple IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Array for the host addresses
* @param addr_count Number of addresses allocated in the array
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return Number of addresses found on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
extern "C" nsapi_size_or_error_t nsapi_dns_query_multiple(nsapi_stack_t *stack, const char *host,
nsapi_addr_t *addr, nsapi_size_t addr_count, nsapi_version_t version = NSAPI_IPv4);
/** Query a domain name server for multiple IP address of a given hostname
*
* @param stack Network stack as target for DNS query
* @param host Hostname to resolve
* @param addr Array for the host addresses
* @param addr_count Number of addresses allocated in the array
* @param version IP version to resolve (defaults to NSAPI_IPv4)
* @return Number of addresses found on success, negative error code on failure
* NSAPI_ERROR_DNS_FAILURE indicates the host could not be found
*/
template <typename S>
nsapi_size_or_error_t nsapi_dns_query_multiple(S *stack, const char *host,
SocketAddress *addr, nsapi_size_t addr_count, nsapi_version_t version = NSAPI_IPv4)
{
return nsapi_dns_query_multiple(nsapi_create_stack(stack),
host, addr, addr_count, version);
}
/** Add a domain name server to list of servers to query
*
* @param addr Destination for the host address
* @return 0 on success, negative error code on failure
*/
extern "C" nsapi_error_t nsapi_dns_add_server(nsapi_addr_t addr);
/** Add a domain name server to list of servers to query
*
* @param addr Destination for the host address
* @return 0 on success, negative error code on failure
*/
static inline nsapi_error_t nsapi_dns_add_server(const SocketAddress &address)
{
return nsapi_dns_add_server(address.get_addr());
}
/** Add a domain name server to list of servers to query
*
* @param addr Destination for the host address
* @return 0 on success, negative error code on failure
*/
static inline nsapi_error_t nsapi_dns_add_server(const char *address)
{
return nsapi_dns_add_server(SocketAddress(address));
}
#endif
#endif
/** @}*/