lwip/contrib/examples/mdns/mdns_example.c

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/*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Dirk Ziegelmeier <dziegel@gmx.de>
*
*/
#include "lwip/apps/mdns.h"
#include "mdns_example.h"
#if LWIP_MDNS_RESPONDER
static void
srv_txt(struct mdns_service *service, void *txt_userdata)
{
err_t res;
LWIP_UNUSED_ARG(txt_userdata);
res = mdns_resp_add_service_txtitem(service, "path=/", 6);
LWIP_ERROR("mdns add service txt failed\n", (res == ERR_OK), return);
}
#endif
#if LWIP_MDNS_RESPONDER
static void
mdns_example_report(struct netif* netif, u8_t result, s8_t service)
{
LWIP_PLATFORM_DIAG(("mdns status[netif %d][service %d]: %d\n", netif->num, service, result));
}
#endif
void
mdns_example_init(void)
{
#if LWIP_MDNS_RESPONDER
mdns_resp_register_name_result_cb(mdns_example_report);
mdns_resp_init();
mdns_resp_add_netif(netif_default, "lwip");
mdns_resp_add_service(netif_default, "myweb", "_http", DNSSD_PROTO_TCP, 80, srv_txt, NULL);
mdns_resp_announce(netif_default);
#endif
}