| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini fdflush implementation for busybox |
| * |
| * Copyright (C) 1995, 1996 by Bruce Perens <bruce@perens.com>. |
| * Copyright (C) 2003 by Erik Andersen <andersen@codeoet.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <sys/ioctl.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include "busybox.h" |
| |
| /* From <linux/fd.h> */ |
| #define FDFLUSH _IO(2,0x4b) |
| |
| extern int fdflush_main(int argc, char **argv) |
| { |
| int fd, result; |
| |
| if (argc <= 1) |
| show_usage(); |
| if ((fd = open(*(++argv), 0)) < 0) |
| goto die_the_death; |
| |
| result = ioctl(fd, FDFLUSH, 0); |
| #ifdef CONFIG_FEATURE_CLEAN_UP |
| close(fd); |
| #endif |
| if (result) { |
| goto die_the_death; |
| } |
| |
| /* Don't bother closing. Exit does |
| * that, so we can save a few bytes */ |
| return EXIT_SUCCESS; |
| |
| die_the_death: |
| perror_msg_and_die(NULL); |
| } |