mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-27 21:50:32 +00:00
7ab9c7ee52
which lets you compile out most of the "--help" output, saving up to 17k. Renamed mnc to nc. -Erik
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini fdflush implementation for busybox
|
|
*
|
|
*
|
|
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
|
|
*
|
|
* 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 "internal.h"
|
|
#include <stdio.h>
|
|
#include <sys/ioctl.h>
|
|
#include <linux/fd.h>
|
|
#include <fcntl.h>
|
|
|
|
|
|
extern int fdflush_main(int argc, char **argv)
|
|
{
|
|
int value;
|
|
int fd;
|
|
|
|
if (argc <= 1 || **(++argv) == '-') {
|
|
usage("fdflush DEVICE\n"
|
|
#ifndef BB_FEATURE_TRIVIAL_HELP
|
|
"\nForces floppy disk drive to detect disk change\n"
|
|
#endif
|
|
);
|
|
}
|
|
|
|
fd = open(*argv, 0);
|
|
if (fd < 0) {
|
|
perror(*argv);
|
|
exit(FALSE);
|
|
}
|
|
|
|
value = ioctl(fd, FDFLUSH, 0);
|
|
/* Don't bother closing. Exit does
|
|
* that, so we can save a few bytes */
|
|
/* close(fd); */
|
|
|
|
if (value) {
|
|
perror(*argv);
|
|
exit(FALSE);
|
|
}
|
|
exit(TRUE);
|
|
}
|