zeroconf: moved code to zeroconf-avahi.c and zeroconf-bonjour.c

Moved implementation specific code to their own sources, internal
declarations in zeroconf-internal.h.

src/zeroconf-internal.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2003-2008 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef ZEROCONF_INTERNAL_H
+#define ZEROCONF_INTERNAL_H
+
+/* The dns-sd service type qualifier to publish */
+#define SERVICE_TYPE		"_mpd._tcp"
+
+void init_avahi(const char *service_name);
+
+void avahi_finish(void);
+
+void init_zeroconf_osx(const char *service_name);
+
+void bonjour_finish(void);
+
+#endif