Paul LietarandJames Laird
3896909080
mDNS is now handled more or less in the same way audio is. Multiple mDNS backends are available, shairport tries them all until one works. This makes it, IMHO, cleaner, and easier to add other mDNS backends in the future, such as using tinysvcmdns or dns-sd library. Also it will also allow to define mDNS backends as plugins, in a similar way it is done in PR #230.
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/*
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* mDNS registration handler. This file is part of Shairport.
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* Copyright (c) James Laird 2013
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <memory.h>
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#include <string.h>
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#include "config.h"
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#include "common.h"
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#include "mdns.h"
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#ifdef CONFIG_AVAHI
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extern mdns_backend mdns_avahi;
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#endif
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extern mdns_backend mdns_external_avahi;
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extern mdns_backend mdns_external_dns_sd;
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static mdns_backend *mdns_backends[] = {
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#ifdef CONFIG_AVAHI
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&mdns_avahi,
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#endif
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&mdns_external_avahi,
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&mdns_external_dns_sd,
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NULL
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};
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static mdns_backend *backend = NULL;
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void mdns_register(void) {
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char *mdns_apname = malloc(strlen(config.apname) + 14);
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char *p = mdns_apname;
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int i;
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for (i=0; i<6; i++) {
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sprintf(p, "%02X", config.hw_addr[i]);
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p += 2;
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}
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*p++ = '@';
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strcpy(p, config.apname);
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backend = NULL;
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mdns_backend **s = NULL;
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for (s = mdns_backends; *s; s++)
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{
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int error = (*s)->mdns_register(mdns_apname, config.port);
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if (error == 0)
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{
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backend = *s;
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break;
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}
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}
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if (backend == NULL)
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die("Could not establish mDNS advertisement!");
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}
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void mdns_unregister(void) {
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if (backend) {
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backend->mdns_unregister();
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}
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}
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