1/* vi: set sw=4 ts=4: */
2/*
3 * Mini fdflush implementation for busybox
4 *
5 *
6 * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <stdio.h>
25#include <sys/ioctl.h>
26#include <fcntl.h>
27#include <stdlib.h>
28#include "busybox.h"
29
30/* From <linux/fd.h> */
31#define FDFLUSH  _IO(2,0x4b)
32
33extern int fdflush_main(int argc, char **argv)
34{
35	int fd;
36
37	if (argc <= 1 || **(++argv) == '-')
38		show_usage();
39
40	if ((fd = open(*argv, 0)) < 0)
41		perror_msg_and_die("%s", *argv);
42
43	if (ioctl(fd, FDFLUSH, 0))
44		perror_msg_and_die("%s", *argv);
45
46	return EXIT_SUCCESS;
47}
48