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