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/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _RTEMS_MDNS_H_
#define _RTEMS_MDNS_H_
#include <mDNSEmbeddedAPI.h>
#include <rtems.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Private variable, do not touch. Use rtems_mdns_sethostname() instead. */
extern int (*rtems_mdns_sethostname_handler)(const char *hostname);
/* Private variable, do not touch. Use rtems_mdns_gethostname() instead. */
extern int (*rtems_mdns_gethostname_handler)(char *hostname, size_t size);
/**
* @brief Initializes an mDNS resolver instance.
*
* Calling this function multiple times leads to unpredictable results.
*
* @param[in] daemon_priority The task priority of the mDNS daemon.
* @param[in] rrcachestorage The resource record cache storage. Use
* mDNS_Init_NoCache in case no cache is desired.
* @param[in] rrcachesize The resource record cache entity count of the
* provided storage. Use mDNS_Init_ZeroCacheSize in case no cache is desired.
*
* @retval RTEMS_SUCCESSFUL Successful operation.
* @retval RTEMS_UNSATISFIED Initialization is incomplete.
*/
rtems_status_code rtems_mdns_initialize(rtems_task_priority daemon_priority,
CacheEntity *rrcachestorage, mDNSu32 rrcachesize);
/**
* @brief Returns the mDNS resolver instance.
*
* Using of this instance is only allowed after a successful call to
* rtems_mdns_initialize().
*
* @retval instance The mDNS resolver instance.
*/
mDNS *rtems_mdns_get_instance(void);
/**
* @brief Sets the multicast hostname of the mDNS resolver instance.
*
* In case the mDNS resolver instance is not initialized, then this function
* has no effect.
*
* @param[in] hostname The new multicast hostname.
*
* @retval 0 Successful operation.
* @retval -1 An error occurred. The errno is set to indicate the error.
*/
static inline int
rtems_mdns_sethostname(const char *hostname)
{
return (*rtems_mdns_sethostname_handler)(hostname);
}
/**
* @brief Gets the multicast hostname of the mDNS resolver instance.
*
* @param[in] hostname The multicast hostname buffer.
* @param[in] size The size of the multicast hostname buffer.
*
* @retval 0 Successful operation.
* @retval -1 An error occurred. The errno is set to indicate the error.
*/
static inline int
rtems_mdns_gethostname(char *hostname, size_t size)
{
return (*rtems_mdns_gethostname_handler)(hostname, size);
}
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _RTEMS_MDNS_H_ */
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