/*

 * Soft:        Keepalived is a failover program for the LVS project

 *              <www.linuxvirtualserver.org>. It monitor & manipulate

 *              a loadbalanced server pool using multi-layer checks.

 *

 * Part:        old_socket.c

 *

 * Author:      Alexandre Cassen, <acassen@linux-vs.org>

 *

 *              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.

 *

 *              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.

 *

 * Copyright (C) 2001-2016 Alexandre Cassen, <acassen@gmail.com>

 */

#include "config.h"

#include <sys/socket.h>

#include <unistd.h>

#include <fcntl.h>

#include <string.h>

#include <errno.h>

#include "old_socket.h"

#include "logger.h"

bool set_sock_flags(int fd, int cmd, long flags)

{

	/* This is slightly odd. The man page for fcntl says that the

	   parameter passed to F_SETFD/F_SETFL is a long, but fnctl

	   only returns an int to F_GETFD/F_GETFL */

	long sock_flags;

	int get_cmd = (cmd == F_SETFD) ? F_GETFD : F_GETFL;

	if ((sock_flags = fcntl(fd, get_cmd)) == -1) {

		log_message(LOG_INFO, "Netlink: Cannot get socket flags : (%s)", strerror(errno));

		return true;

	}

	if (fcntl(fd, cmd, sock_flags | flags) < 0) {

		log_message(LOG_INFO, "Netlink: Cannot set socket flags: (%s)", strerror(errno));

		return true;

	}

	return false;

}