src/zeroconf-bonjour.c

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include "config.h"
  21 #include "zeroconf-internal.h"
  22 #include "listen.h"
  23
  24 #include <glib.h>
  25
  26 #include <dns_sd.h>
  27
  28 #undef G_LOG_DOMAIN
  29 #define G_LOG_DOMAIN "bonjour"
  30
  31 static DNSServiceRef dnsReference;
  32 static GIOChannel *bonjour_channel;
  33
  34 static void
  35 dnsRegisterCallback(G_GNUC_UNUSED DNSServiceRef sdRef,
  36                     G_GNUC_UNUSED DNSServiceFlags flags,
  37                     DNSServiceErrorType errorCode, const char *name,
  38                     G_GNUC_UNUSED const char *regtype,
  39                     G_GNUC_UNUSED const char *domain,
  40                     G_GNUC_UNUSED void *context)
  41 {
  42         if (errorCode != kDNSServiceErr_NoError) {
  43                 g_warning("Failed to register zeroconf service.");
  44
  45                 bonjour_finish();
  46         } else {
  47                 g_debug("Registered zeroconf service with name '%s'", name);
  48         }
  49 }
  50
  51 static gboolean
  52 bonjour_channel_event(G_GNUC_UNUSED GIOChannel *source,
  53                       G_GNUC_UNUSED GIOCondition condition,
  54                       G_GNUC_UNUSED gpointer data)
  55 {
  56         DNSServiceProcessResult(dnsReference);
  57
  58         return dnsReference != NULL;
  59 }
  60
  61 void init_zeroconf_osx(const char *serviceName)
  62 {
  63         DNSServiceErrorType error = DNSServiceRegister(&dnsReference,
  64                                                        0, 0, serviceName,
  65                                                        SERVICE_TYPE, NULL, NULL,
  66                                                        htons(listen_port), 0,
  67                                                        NULL,
  68                                                        dnsRegisterCallback,
  69                                                        NULL);
  70
  71         if (error != kDNSServiceErr_NoError) {
  72                 g_warning("Failed to register zeroconf service.");
  73
  74                 if (dnsReference) {
  75                         DNSServiceRefDeallocate(dnsReference);
  76                         dnsReference = NULL;
  77                 }
  78                 return;
  79         }
  80
  81         bonjour_channel = g_io_channel_unix_new(DNSServiceRefSockFD(dnsReference));
  82         g_io_add_watch(bonjour_channel, G_IO_IN, bonjour_channel_event, NULL);
  83 }
  84
  85 void bonjour_finish(void)
  86 {
  87         if (bonjour_channel != NULL) {
  88                 g_io_channel_unref(bonjour_channel);
  89                 bonjour_channel = NULL;
  90         }
  91
  92         if (dnsReference != NULL) {
  93                 DNSServiceRefDeallocate(dnsReference);
  94                 dnsReference = NULL;
  95                 g_debug("Deregistered Zeroconf service.");
  96         }
  97 }