/******************************************************************************
 * Icinga 2                                                                   *
 * Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.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 St, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ******************************************************************************/

#include "base/unixsocket.hpp"
#include "base/exception.hpp"

#ifndef _WIN32
using namespace icinga;

UnixSocket::UnixSocket(void)
{
	int fd = socket(AF_UNIX, SOCK_STREAM, 0);

	if (fd < 0) {
		BOOST_THROW_EXCEPTION(posix_error()
		    << boost::errinfo_api_function("socket")
		    << boost::errinfo_errno(errno));
	}

	SetFD(fd);
}

void UnixSocket::Bind(const String& path)
{
	unlink(path.CStr());

	sockaddr_un s_un;
	memset(&s_un, 0, sizeof(s_un));
	s_un.sun_family = AF_UNIX;
	strncpy(s_un.sun_path, path.CStr(), sizeof(s_un.sun_path));
	s_un.sun_path[sizeof(s_un.sun_path) - 1] = '\0';

	if (bind(GetFD(), (sockaddr *)&s_un, SUN_LEN(&s_un)) < 0) {
		BOOST_THROW_EXCEPTION(posix_error()
		    << boost::errinfo_api_function("bind")
		    << boost::errinfo_errno(errno));
	}
}

void UnixSocket::Connect(const String& path)
{
	sockaddr_un s_un;
	memset(&s_un, 0, sizeof(s_un));
	s_un.sun_family = AF_UNIX;
	strncpy(s_un.sun_path, path.CStr(), sizeof(s_un.sun_path));
	s_un.sun_path[sizeof(s_un.sun_path) - 1] = '\0';

	if (connect(GetFD(), (sockaddr *)&s_un, SUN_LEN(&s_un)) < 0 && errno != EINPROGRESS) {
		BOOST_THROW_EXCEPTION(posix_error()
		    << boost::errinfo_api_function("connect")
		    << boost::errinfo_errno(errno));
	}
}
#endif /* _WIN32 */