source: MondoRescue/branches/2.2.5/mindi-busybox/util-linux/freeramdisk.c @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 13 years ago

Update to busybox 1.7.2

File size: 871 bytes
RevLine 
[821]1/* vi: set sw=4 ts=4: */
2/*
3 * freeramdisk and fdflush implementations for busybox
4 *
5 * Copyright (C) 2000 and written by Emanuele Caratti <wiz@iol.it>
6 * Adjusted a bit by Erik Andersen <andersen@codepoet.org>
7 * Unified with fdflush by Tito Ragusa <farmatito@tiscali.it>
8 *
[1765]9 * Licensed under GPLv2, see file LICENSE in this tarball for details.
[821]10 */
11
[1765]12#include "libbb.h"
[821]13
14/* From <linux/fd.h> */
15#define FDFLUSH  _IO(2,0x4b)
16
[1765]17int freeramdisk_main(int argc, char **argv);
[821]18int freeramdisk_main(int argc, char **argv)
19{
20    int fd;
21
22    if (argc != 2) bb_show_usage();
23
[1765]24    fd = xopen(argv[1], O_RDWR);
[821]25
26    // Act like freeramdisk, fdflush, or both depending on configuration.
[1765]27    ioctl_or_perror_and_die(fd, (ENABLE_FREERAMDISK && applet_name[1]=='r')
28            || !ENABLE_FDFLUSH ? BLKFLSBUF : FDFLUSH, NULL, "%s", argv[1]);
[821]29
30    if (ENABLE_FEATURE_CLEAN_UP) close(fd);
31
32    return EXIT_SUCCESS;
33}
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