view toys/other/freeramdisk.c @ 1429:8c78a7e5486d draft

Disable xopen's default O_CLOEXEC for oneit.
author Rob Landley <rob@landley.net>
date Sat, 09 Aug 2014 23:49:48 -0500
parents bd4e3608ad04
children
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/* freeramdisk.c - Free all memory allocated to ramdisk
 *
 * Copyright 2014 Vivek Kumar Bhagat <vivek.bhagat89@gmail.com>
 *
 * No Standard

USE_FREERAMDISK(NEWTOY(freeramdisk, "<1>1", TOYFLAG_SBIN|TOYFLAG_NEEDROOT))

config FREERAMDISK
  bool "freeramdisk"
  default y
  help
    usage: freeramdisk [RAM device]

    Free all memory allocated to specified ramdisk
*/

#include "toys.h"

void freeramdisk_main(void)
{
  int fd;

  fd = xopen(toys.optargs[0], O_RDWR);
  xioctl(fd, BLKFLSBUF, toys.optargs[0]);
  if (CFG_TOYBOX_FREE) xclose(fd);
}