Paul LietarandJames Laird
592119bc4d
This backend allows shairport to run without having a heavy daemon such as avahi or mDNSResponder running in the background. ipv6 support is more or less experimental right now.
114 lines
3.0 KiB
C
114 lines
3.0 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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extern mdns_backend mdns_tinysvcmdns;
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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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&mdns_tinysvcmdns,
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NULL
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};
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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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mdns_backend **b = NULL;
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if (config.mdns_name != NULL)
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{
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for (b = mdns_backends; *b; b++)
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{
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if (strcmp((*b)->name, config.mdns_name) != 0) // Not the one we are looking for
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continue;
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int error = (*b)->mdns_register(mdns_apname, config.port);
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if (error >= 0)
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{
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config.mdns = *b;
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}
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break;
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}
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if (*b == NULL)
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warn("%s mDNS backend not found");
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}
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else
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{
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for (b = mdns_backends; *b; b++)
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{
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int error = (*b)->mdns_register(mdns_apname, config.port);
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if (error >= 0)
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{
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config.mdns = *b;
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break;
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}
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}
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}
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if (config.mdns == 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 (config.mdns) {
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config.mdns->mdns_unregister();
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}
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}
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void mdns_ls_backends(void) {
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mdns_backend **b = NULL;
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printf("Available mDNS backends: \n");
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for (b = mdns_backends; *b; b++)
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{
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printf(" %s\n", (*b)->name);
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}
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}
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