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