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/*
* Copyright 2003-2021 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ZeroconfGlue.hxx"
#include "ZeroconfAvahi.hxx"
#include "ZeroconfBonjour.hxx"
#include "config/Data.hxx"
#include "config/Option.hxx"
#include "Listen.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"
#include "util/Compiler.h"
#include <climits>
#include <string.h>
#include <unistd.h>
#ifndef HOST_NAME_MAX
/* HOST_NAME_MAX is not a portable macro; it is undefined on some
systems */
#define HOST_NAME_MAX 255
#endif
static constexpr Domain zeroconf_domain("zeroconf");
/* The default service name to publish
* (overridden by 'zeroconf_name' config parameter)
*/
#define SERVICE_NAME "Music Player @ %h"
#define DEFAULT_ZEROCONF_ENABLED 1
static int zeroconfEnabled;
void
ZeroconfInit(const ConfigData &config, [[maybe_unused]] EventLoop &loop)
{
const char *serviceName;
zeroconfEnabled = config.GetBool(ConfigOption::ZEROCONF_ENABLED,
DEFAULT_ZEROCONF_ENABLED);
if (!zeroconfEnabled)
return;
if (listen_port <= 0) {
LogWarning(zeroconf_domain,
"No global port, disabling zeroconf");
zeroconfEnabled = false;
return;
}
serviceName = config.GetString(ConfigOption::ZEROCONF_NAME,
SERVICE_NAME);
/* replace "%h" with the host name */
const char *h = strstr(serviceName, "%h");
std::string buffer;
if (h != nullptr) {
char hostname[HOST_NAME_MAX+1];
if (gethostname(hostname, HOST_NAME_MAX) == 0) {
buffer = serviceName;
buffer.replace(h - serviceName, 2, hostname);
serviceName = buffer.c_str();
}
}
#ifdef HAVE_AVAHI
AvahiInit(loop, serviceName);
#endif
#ifdef HAVE_BONJOUR
BonjourInit(loop, serviceName);
#endif
}
void
ZeroconfDeinit()
{
if (!zeroconfEnabled)
return;
#ifdef HAVE_AVAHI
AvahiDeinit();
#endif /* HAVE_AVAHI */
#ifdef HAVE_BONJOUR
BonjourDeinit();
#endif
}
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