/*-----------------------------------------------------------------------------
 * dnslookupworker.cpp 
 * Copyright (C) 2003, 2004, 2005  Akito Nozaki
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <errno.h>

#include <tanoshi/common_def.h>
#include <tanoshi/dnslookup.h>
#include <tanoshi/dnslookupworker.h>

NAMESPACE_TANOSHI
{
	DnsLookupWorker::DnsLookupWorker(DnsLookup *dnslookup, const std::string &domain)
		: Thread()
	{
		_dnslookup = dnslookup;
		_domain = domain;
	}
		
	
	DnsLookupWorker::~DnsLookupWorker()
	{
	}

	HostAddress DnsLookupWorker::getHostAddress()
	{
		return _addr;
	}
	
	void DnsLookupWorker::run()
	{
		// MacOS X's getaddrinfo isn't thread safe. All others is thread safe
		// and should be ok.
		//
		// Ok more note... glibc had a bug with getaddrinfo that was causing
		// memory leak. glibc-2.3.3-84 has the fix and should be free from
		// memory leak.
		addrinfo *resdata = 0;
		if(getaddrinfo(_domain.c_str(), 0, 0, &resdata) != 0)
		{
			if(resdata)
				freeaddrinfo(resdata);

			_dnslookup->wakeup.wakeup();
			return;
		}

		_addr.setAddress(ntohl(((sockaddr_in *)resdata->ai_addr)->sin_addr.s_addr));
		freeaddrinfo(resdata);
		_dnslookup->wakeup.wakeup();
		
		
	}
}