mirror of
https://github.com/sheumann/hush.git
synced 2024-05-28 06:41:31 +00:00
5bc8c005a8
Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* freeramdisk and fdflush implementations for busybox
|
|
*
|
|
* Copyright (C) 2000 and written by Emanuele Caratti <wiz@iol.it>
|
|
* Adjusted a bit by Erik Andersen <andersen@codepoet.org>
|
|
* Unified with fdflush by Tito Ragusa <farmatito@tiscali.it>
|
|
*
|
|
* Licensed under GPLv2, see file LICENSE in this source tree.
|
|
*/
|
|
|
|
//usage:#define freeramdisk_trivial_usage
|
|
//usage: "DEVICE"
|
|
//usage:#define freeramdisk_full_usage "\n\n"
|
|
//usage: "Free all memory used by the specified ramdisk"
|
|
//usage:
|
|
//usage:#define freeramdisk_example_usage
|
|
//usage: "$ freeramdisk /dev/ram2\n"
|
|
//usage:
|
|
//usage:#define fdflush_trivial_usage
|
|
//usage: "DEVICE"
|
|
//usage:#define fdflush_full_usage "\n\n"
|
|
//usage: "Force floppy disk drive to detect disk change"
|
|
|
|
#include <sys/mount.h>
|
|
#include "libbb.h"
|
|
|
|
/* From <linux/fd.h> */
|
|
#define FDFLUSH _IO(2,0x4b)
|
|
|
|
int freeramdisk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int freeramdisk_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
int fd;
|
|
|
|
fd = xopen(single_argv(argv), O_RDWR);
|
|
|
|
// Act like freeramdisk, fdflush, or both depending on configuration.
|
|
ioctl_or_perror_and_die(fd, (ENABLE_FREERAMDISK && applet_name[1] == 'r')
|
|
|| !ENABLE_FDFLUSH ? BLKFLSBUF : FDFLUSH, NULL, "%s", argv[1]);
|
|
|
|
if (ENABLE_FEATURE_CLEAN_UP) close(fd);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|