Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | f6be944 | 1999-10-13 21:12:06 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini fdflush implementation for busybox |
| 4 | * |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 5 | * |
| 6 | * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. |
Eric Andersen | f6be944 | 1999-10-13 21:12:06 +0000 | [diff] [blame] | 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 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 24 | #include "internal.h" |
Eric Andersen | f6be944 | 1999-10-13 21:12:06 +0000 | [diff] [blame] | 25 | #include <stdio.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 26 | #include <sys/ioctl.h> |
| 27 | #include <linux/fd.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 28 | #include <fcntl.h> |
| 29 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 30 | |
Eric Andersen | f6be944 | 1999-10-13 21:12:06 +0000 | [diff] [blame] | 31 | extern int fdflush_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 32 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 33 | int value; |
| 34 | int fd; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 35 | |
Erik Andersen | 9cf3bfa | 2000-04-13 18:49:43 +0000 | [diff] [blame] | 36 | if (argc <= 1 || **(++argv) == '-') { |
Erik Andersen | 7ab9c7e | 2000-05-12 19:41:47 +0000 | [diff] [blame] | 37 | usage("fdflush DEVICE\n" |
| 38 | #ifndef BB_FEATURE_TRIVIAL_HELP |
| 39 | "\nForces floppy disk drive to detect disk change\n" |
| 40 | #endif |
| 41 | ); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 42 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 43 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 44 | fd = open(*argv, 0); |
| 45 | if (fd < 0) { |
| 46 | perror(*argv); |
| 47 | exit(FALSE); |
| 48 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 49 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 50 | value = ioctl(fd, FDFLUSH, 0); |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 51 | /* Don't bother closing. Exit does |
| 52 | * that, so we can save a few bytes */ |
| 53 | /* close(fd); */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 54 | |
| 55 | if (value) { |
| 56 | perror(*argv); |
| 57 | exit(FALSE); |
| 58 | } |
Eric Andersen | b610615 | 2000-06-19 17:25:40 +0000 | [diff] [blame^] | 59 | return(TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 60 | } |