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/* 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 <fcntl.h>
/* From <linux/fd.h> */
#define FDFLUSH _IO(2,0x4b)
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);
}
return(TRUE);
}
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